CPC Definition - Subclass A61M

Last Updated Version: 2019.02
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D 7/00; means for inserting tampons A61F 13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J 1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
Definition statement

This place covers:

Devices or processes specially adapted to be used to insert or place media into human bodies (e.g., pumps, syringes, atomisers, insufflators, inhalers) and that do so either

  • by an artificial method (i.e., a human created or contrived method that cannot occur naturally such as hypodermic-syringe injections) or
  • by enhancing a naturally occurring method (e.g., inhalers used in conjunction with normal breathing) other than oral..

Devices or processes specially adapted to be used to place media upon human bodies (e.g., percutaneous devices, radioactive dressings) and that do so either

  • by an artificial method or
  • by enhancing a naturally occurring method (e.g., standard absorption, rubbing substances onto skin).

Devices or processes which are specially adapted to be used to direct, lead, convey, or carry media up to, away from, or within human bodies (e.g., tubes for carrying oxygen, medical pumps, artificial hearts, mechanical blood circulatory assistors, blood oxygenation devices, devices for artificial respiration by treatment with gas or air) and that do so either

  • by an artificial method (e.g., dialysis systems) or
  • by enhancing a naturally occurring method (e.g., standard circulation of blood, standard discharging of bodily waste).

Devices or processes specially adapted to be used to remove, eject, or expel media from human bodies (e.g., suction type breast relievers, discharge draining devices for wounds) and that do so

  • by an artificial method (e.g., subaquatic intestinal cleaning systems) or
  • by enhancing a naturally occurring method (e.g., babies sucking on breast, boils natural discharging).

Devices or processes specially adapted to cause or provoke a change in the state of consciousness of humans (e.g., induce sleep, fully awaken) and that do so in a manner other than one which commonly occurs (e.g., falling asleep on a good mattress, physical exhaustion).

Devices or processes specially adapted to increase or decrease the mental activity of humans while awake (e.g., relax, stimulate) and that do so in a manner other than that which commonly occurs (e.g., creating boredom).

Accessories specially adapted for use with at least one of the above devices and that contribute to the effectiveness or safety of the device or its use.

Specially adapted components having structural features limiting them to use with a device of one of the types specified above.

Relationships with other classification places

When used with animals

If a device or process is usable for both humans and animals for the same purpose and in the same manner, and it is otherwise proper for this subclass, classification is made only in subclass A61M. Similar devices or processes to those covered by subclass A61M that are usable exclusively for animals, or are used in animals in a different manner or for different purposes than for humans, are classified in subclass A61D.

When used with living or dead human bodies

Patent documents for general-purpose medical devices or processes that are otherwise proper for subclass A61M are classified in subclass A61M when they either disclose only being used on living human bodies or broadly disclose being used on humans. Patent documents for general -purpose medical devices or processes that are otherwise proper for subclass A61M and fully identified as being used on both living and dead human bodies are classified in subclass A61M and subclass A01N or A61B Patent documents for similar devices or processes to those covered by subclass A61M that are specially adapted for use exclusively on dead humans are classified only in subclass A01N or A61B.

Implantable prostheses or artificial organ replacements

With regard to human organs and their parts, the exact distinction between the artificial devices implantable into human bodies that are proper for subclass A61F and those proper for subclass A61M is somewhat imprecise. Therefore, for analogous situations that are not specifically covered by existing groups of these subclasses, the following listings are intended to provide guidance. Subclass A61F provides for the following replacements or substitutes for internal body organs or their parts: artificial hollow or tubular parts of organs (e.g., bladders, tracheae, bronchi, hearts valves and blood vessels, bile ducts), structural supporting or maintaining devices for such parts or their natural equivalents (e.g., stents), artificial eyes, and artificial ears. Subclass A61M provides for the following replacements or substitutes for internal body organs or their parts: artificial hearts, artificial livers, artificial ventilators, artificial pancreas, and artificial kidneys.

References
Limiting references

This place does not cover:

Applications or methods that use specific materials, compositions, or single compounds for the preservation of human bodies or for the preservation of living parts of human bodies

A01N 1/00

Devices or methods for handling cosmetic or toilet substances

A45D

Surgical introduction or removal of body parts or their substitutes

A61B

Devices specially adapted for taking blood samples

A61B 5/15

Devices specially adapted for vivisection or autopsy

A61B 16/00

Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals

A61D 7/00

Prostheses implantable into a human body

A61F 2/02

Medicinal preparations characterised by special physical form

A61K 9/00

Chemical aspects of bandages, dressings, absorbent pads, or other surgical articles placed upon into human body

A61L

Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents

A61N 1/36021

Application-oriented references

Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Devices worn by patients for reception of urine, faeces, catamenial, or other bodily discharges

A61F 5/44

Application swabs

A61F 13/15

Devices for receiving spittle

A61J 19/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices worn by patients for reception of urine, faeces, catamenial, or other bodily discharges

A61F 5/44

Application swabs

A61F 13/15

Devices for receiving spittle

A61J 19/00

Special rules of classification

When a device or method covered by subclass A61M includes a separating process for body-liquids that utilizes chromatography, and features of general interest related to chromatography are usefully disclosed but not claimed, the features should also be non-obligatorily classified within group B01D 15/08.

Main group A61M36/00 takes precedence over all other main groups of subclass A61M.

The breakdown symbols (i.e. the non "parallel" or non "mirror" symbols) and "orthogonal" symbols are to be used for classifying the invention information (in addition to the invention symbols) in case the invention is insufficiently classified by an invention information symbol. They are also to be used for classifying the additional information. They are stored in the additional information field.

Glossary of terms

In this place, the following terms or expressions are used with the meaning indicated:

Media

Solid, liquid, or gaseous substances or devices (e.g., medicine, food, in vivo testing material, catheters) which are either used by or within human bodies for medical or physical purposes, components of or substances naturally within human bodies (e.g., artificial heart, blood, insulin), or bodily discharge or waste created by human bodies or medical processes taking place within human bodies (e.g., urine).

Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems ({A61M 3/00 - A61M 5/00, A61M 11/00 - A61M 16/00, A61M 27/00 - A61M 35/00 take precedence } ; catheters A61M 25/00; tube connectors, tube couplings, valves or branch units specially adapted for medical use A61M 39/00; devices for taking samples of blood A61B 5/14; implements for holding wounds open A61B 17/02; {saliva removers for dentists A61C 17/04} ; filters implantable into blood vessels A61F 2/01; pumps in general F04)
References
Limiting references

This place does not cover:

Irrigators; Enemata

A61M 3/00

Syringes; Infusion devices

A61M 5/00

Infusion devices using feedback of body parameters, e.g. blood-sugar, pressure, artificial pancreas

A61M 5/1723

Sprayers or atomizers

A61M 11/00

Inhalators

A61M 15/00

Respirators

A61M 16/00

Drainage appliances for wounds

A61M 27/00

Dilators

A61M 29/00

Devices for introducing or retaining media

A61M 31/00

Devices for applying media

A61M 35/00

Implantable gland structures or devices, e.g. implantable artificial pancreas

A61F 2/022

In vitro human cell grow apparatus

C12M 3/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Non-implantable gland structures or devices, e.g. non-implantable artificial pancreas

A61M 1/3489, A61M 1/3679, A61M 1/3689

Catheters

A61M 25/00

Tube connectors, tube couplings, valves or branch units specially adapted for medical use

A61M 39/00

Devices for taking samples of blood

A61B 5/14

Implements for holding wounds open

A61B 17/02

Saliva removers for dentists

A61C 17/04

Filters implantable into blood vessels

A61F 2/01

Devices worn by the patient for reception of urine, faeces, catamenial or other discharge

A61F 5/44

Tissue or organ culture

C12N 5/0671

Pumps in general

F04B, F04C, F04D, F04F

Special rules of classification

The breakdown symbols (i.e. the non "parallel" or non "mirror" symbols) and "orthogonal" symbols are to be used for classifying the invention information (in addition to the invention symbols) in case the invention is insufficiently classified by an invention information symbol. They are also to be used for classifying the additional information. They are stored in the additional information field.

The "orthogonal" Indexing Code symbols (A61M 2202/00-A61M 2250/00) are also used.

{Containers for suction drainage, e.g. rigid containers}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood reservoirs

A61M 1/3627

Special rules of classification

This group covers containers which are described as being usable in the context of medical suction drainage, they thus can be considered as being part of a suction device. Therefore there is no contradiction with the definition of A61M 1/00. The containers do not need to be rigid but many of them are. They are not required to act as a pump but some do, and then the appropriate subgroups may be applicable (e.g. A61M 1/0009, A61M 1/0011 or A61M 1/0003 in some cases). It does not always make sense to say that they are capable of being subject to vacuum, e.g. in the case that they have a flexible member creating suction this would make no sense. However, if it is clear that a container is not capable of being subject to vacuum there is the special group A61M 1/0019 for those. The fluid does not have to pass through the vacuum source, but it can, in some cases.

{Self-contained vacuum aspirators}
Definition statement

This place covers:

Vacuum aspirators which contain the pumping means and the containers in a compact way, e.g. mucous aspirators for babies

{with means for emptying the suction container, e.g. by interrupting suction}
Definition statement

This place covers:

Containers for suction drainage having foreseen means for emptying the container, e.g. means allowing to remove the container without interrupting the suction or means for interrupting suction so that the container can be removed; pulsating suction is not considered as having interruptions in the sense of the present definition

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

also for blood transfusion

{incorporating a movable wall to create suction, e.g. syringes (with a flexible member creating suction A61M 1/0011; cupping glasses A61M 1/08)}
Definition statement

This place covers:

Only drainage containers (thus not syringe pumps where the aspirated material is not entering the syringe barrel) incorporating a movable rigid wall

References
Limiting references

This place does not cover:

Containers with a flexible member creating suction

A61M 1/0011

Cupping glasses

A61M 1/08

Informative references

Attention is drawn to the following places, which may be of interest for search:

Piston (air) pumps for creating suction

A61M 1/0068

{Drainage containers incorporating a flexible member creating suction, e.g. bags in a low-pressure chamber, bellows}
Definition statement

This place covers:

only DRAINAGE CONTAINERS having a flexible member, thus not bulb or membrane pumps where the aspirated material is not collected inside the pump

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Rigid container with flexible liner

A61M 1/0001

Liner in a rigid container

A61M 1/0017

Membrane (air) pumps for creating suction

A61M 1/0072

Emptying infusion-containers

A61M 5/1483

{Two- or three-bottle systems for underwater drainage, e.g. for chest cavity drainage}
Definition statement

This place covers:

Systems for underwater drainage having a chamber functioning as a "water seal", which acts as a one way valve allowing gas to escape, but not to reenter, often called two- or three bottle systems, e.g. for chest cavity drainage

Synonyms and Keywords

Thoracic or pleural drainage

{Drainage containers not being adapted for subjection to vacuum, e.g. bags (devices worn by the patient for reception of urine A61F 5/44; emptying devices for drainage bags B65B 69/0016)}
References
Limiting references

This place does not cover:

Devices worn by the patient for the reception of urine

A61F 5/44

Emptying devices for drainage bags

B65B 69/0016

Informative references

Attention is drawn to the following places, which may be of interest for search:

Surgical drapes with fluid collection means

A61B 46/00

Special rules of classification

This group and A61M 1/0001 relate to containers which are usable with a suction system. Therefore it is implicit that they are part of a suction device and a subgroup of A61M 1/00. However, a lot of documents describe in detail such a container and not the rest of the suction device or system (pump, drainage tube) necessary for the drainage process. Such a document should still be classified in A61M 1/0005 or in A61M 1/0001 and subgroups, even if it does not describe the rest of the suction systems.

{Gravity drainage systems (A61M 1/0019 takes precedence)}
References
Limiting references

This place does not cover:

Drainage containers not being adapted for subjection to vacuum

A61M 1/0019

{Suction drainage systems (containers therefor A61M 1/0001; suction-irrigation systems A61M 1/0058)}
Definition statement

This place covers:

Units with incorporated vacuum source, through which no liquid passes:

References
Limiting references

This place does not cover:

units with incorporated vacuum source through which liquid passes, these are considered as pumping containers for suction drainage which are comprised in the groups of containers

A61M 1/0001

Informative references

Attention is drawn to the following places, which may be of interest for search:

Containers

A61M 1/0001

Suction-irrigation systems

A61M 1/0058

Special rules of classification

A suction drainage system generally has a suction means, a container and a drainage tube. If the focus is on the container, A61M 1/0001 or its subgroups should be used. If the focus is on the system, A61M 1/0023 or subgroups is used. If both are described, both classifications should be given. If the vacuum source is at the same time the container receiving the drained liquid, then the device is not considered as a system but as a container. Therefor only the appropriate subgroup of A61M 1/0001 should be used or the head group A61M 1/0001 if none of the subgroups applies.

{Suction control (A61M 1/0013, A61M 1/0041 take precedence)}
Definition statement

This place covers:

This group covers suction irrigation systems describing details of the way suction is controlled

References
Limiting references

This place does not cover:

Two- or three-bottle systems for underwater drainage

A61M 1/0013

With means for varying suction manually

A61M 1/0041

Informative references

Attention is drawn to the following places, which may be of interest for search:

Controlling pressure, in general

A61M 2205/3331

{Intermittent or pulsating suction (A61M 1/0005, A61M 1/0062 take precedence)}
References
Limiting references

This place does not cover:

With means for emptying the suction container, e.g. by interrupting suction

A61M 1/0005

Operating alternately

A61M 1/0062

{Handpieces (aspiration tips A61M 1/008)}
Definition statement

This place covers:

Handpieces, these being the proximal part of the device which the surgeon holds in his hand to perform suction drainage, e.g. for controlling suction

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Aspiration tips

A61M 1/008

{with means for varying suction manually (suction control A61M 1/0031)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Suction control more generally

A61M 1/0031

{by changing the section of the line}
Definition statement

This place covers:

Handpieces with means for varying suction manually by changing the cross section of the line, e.g. changing the cross section of the line by pinching tubing

{by changing the size of a vent (in combination with changing the section of the line A61M 1/0043)}
References
Limiting references

This place does not cover:

In combination with changing the section of the line

A61M 1/0043

{Means preventing overflow or contamination of the pumping systems (combined with rigid drainage containers A61M 1/0001)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Combined with rigid drainage containers

A61M 1/0001

{Filters for solid matter (similar devices for dental use A61C 17/046)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For dental use

A61C 17/046

{Suction-irrigation systems (aspiration tips supplying fluids A61M 1/0084; combined with tracheal tubes A61M 16/0463)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Aspiration tips supplying fluids

A61M 1/0084

Combined with tracheal tubes

A61M 16/0463

In endoscopes

A61B 1/12

Dental

A61C 17/0208

{operating alternately (A61M 1/0064 takes precedence)}
Definition statement

This place covers:

Suction irrigation systems whith suction and irrigation being operated alternately

References
Limiting references

This place does not cover:

Handpieces

A61M 1/0064

Single needle systems

A61M 1/30

{Handpieces therefor}
Definition statement

This place covers:

Handpieces for suction-irrigation systems, these being the proximal part of the device which the surgeon holds in his hand to perform suction-irrigation e.g. for controlling suction and/or irrigation

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Irrigators with suction means

A61M 3/0283

{Suction pumps (A61M 1/0003, A61M 1/0011, A61M 1/0023, A61M 1/10 take precedence)}
Definition statement

This place covers:

suction pumps for medical purposes except for the groups mentionned as taking precedence and where the pump mechanism is described in detail

References
Limiting references

This place does not cover:

Self-contained vacuum aspirators

A61M 1/0003

Drainage containers incorporating a flexible member creating suction

A61M 1/0011

Suction drainage systems

A61M 1/0023

Blood pumps

A61M 1/10

{by vacuum created above a liquid flowing from a closed container}
Definition statement

This place covers:

Suction pumps where the vacuum is created above a liquid flowing from a closed container, e.g. pumps for pleural drainage

{using Laval or Venturi jet pumps}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Similar devices in ventilators

A61M 16/0012

{Tube strippers, i.e. for clearing the contents of the tubes (vein strippers A61B 17/00008)}
Definition statement

This place covers:

Tube strippers, which are tools used for removing fluid from medical tubes

References
Limiting references

This place does not cover:

Vein strippers

A61B 17/00008

{Drainage tubes; Aspiration tips}
Definition statement

This place covers:

Drainage tubes and aspiration tips which are related to described suction means

References
Limiting references

This place does not cover:

Wound drainage tubes without described suction means

A61M 27/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cupping glasses

A61M 1/08

Combined with tracheal tubes

A61M 16/0463

Surgical middle ear drainage

A61F 11/002

Special rules of classification

This is a subgroup to the group A61M 1/00; if no suction is involved then the documents are not for A61M 1/008 either. However, this group is for documents where details of the drainage tubes or aspiration tips are described, even if no details of the suction are given.

{With gas or fluid supply means, e.g. for supplying rinsing fluids, anticoagulants (for irrigation without suction A61M 3/0279; combined with tracheal tubes A61M 16/0463; dental instruments with combined rinsing and aspirating A61C 17/0208)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For irrigation without suction

A61M 3/0279

Double lumen needles

A61M 5/1582

Combined with endotracheal tubes

A61M 16/0463

Multi lumen catheters

A61M 25/0026

Dental

A61C 17/0208

{with a seal, e.g. to stick around a wound for isolating the treatment area}
Definition statement

This place covers:

Drainage tubes and aspiration tips where a seal isolates the treatment area such as in negative pressure wound treatment devices

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Wound drain tubes

A61M 27/00

Absorbent bandages or dressings

A61F 13/00

Absorbent bandages or dressings with possibility of applying fluid

A61F 2013/0017

Absorbent bandages or dressings with possibility of applying fluid and pressure

A61F 2013/00174

Blood transfusion apparatus (blood infusion by syringes A61M 5/14)
Definition statement

This place covers:

Apparatus for blood transfusion, for blood collection in view of transfusion and for treatment of collected blood in view of later transfusion

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood infusion by syringes

A61M 5/14

Special rules of classification

Either collection of blood in amounts interesting for transfusion (taking a sample for diagnosis would not fall under this) or treatment of collected blood in view of later transfusion is required for classification in this group.

{Multiple bag systems for separating or storing blood components}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Details of blood bags

A61J 1/10

{Means for controlling the quantity of transfused blood, e.g. by weighing the container and automatic stopping of the transfusion after reaching a determined amount}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Containers with means for emptying the container with or without interrupting suction

A61M 1/0005

{combined with blood container shaking means}
Definition statement

This place covers:

Means for controlling the quantity of transfused blood combined with blood container shaking means]

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Means for agitating or shaking blood containers not in combination with means for controlling the quantity of blood

A61M 1/025

{Means for agitating or shaking blood containers (A61M 1/0245 takes precedence; shaking in general B01F 11/00)}
References
Limiting references

This place does not cover:

Combined with blood container shaking means

A61M 1/0245

Informative references

Attention is drawn to the following places, which may be of interest for search:

Shaking in general

B01F 11/00

{Apparatus for treatment of blood or blood constituents not otherwise provided for (for agitating A61M 1/025; for separating blood components present in distinct layers in a container A61M 1/029)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For agitating

A61M 1/025

For separating blood components present in distinct layers in a container

A61M 1/029

{Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging}
Definition statement

This place covers:

Treatment of blood, after collection from a donor, for the purpose of being conserved.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Prior to transfusion

A61M 1/0281

{Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing}
Definition statement

This place covers:

Treatment of blood for the purpose of being introduced into a patient.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Prior to or for conservation

A61M 1/0272

{Separating blood components present in distinct layers in a container, not otherwise provided for (containers for storing blood or blood components A61J 1/05; sampling or analysing blood by separating blood components G01N 33/491)}
Definition statement

This place covers:

Separating stratified blood components.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Containers for storing blood or blood components

A61J 1/10

Sampling or analysing blood by separating blood components

G01N 33/491

{Artificial} pneumothorax apparatus
Definition statement

This place covers:

Devices for treating pneumothorax (i.e. abnormal collection of gas in the pleural space) and devices for creating and treating a pneumostoma

Milking pumps (feeding-bottles A61J 9/00)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Brassieres

A41C 3/00

Feeding bottles

A61J 9/00

Teats

A61J 11/00

Breast shields

A61J 13/00

Cupping glasses
Definition statement

This place covers:

The traditional cupping glasses, used in cupping therapy where a partial vacuum is created in cups placed on the skin either by means of heat or suction; the group contains also some similar devices which are used as poison extractors

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Suction massage

A61H 9/005

Special rules of classification

Rigid cups having pumping shut-off valves are coded with

A61M 1/0003

Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps (artificial heart valves A61F 2/24; heart stimulation A61H 31/00)
References
Limiting references

This place does not cover:

Constructive details of valves therefor

A61F 2/24

Heart stimulation

A61H 31/00

{Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Electric motors

H02K

{Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps (Moving membranes in blood filters used for pumping A61M 1/267)}
References
Limiting references

This place does not cover:

Moving membranes in blood filters used for pumping

A61M 1/267

Informative references

Attention is drawn to the following places, which may be of interest for search:

Constructive details of valves therefor

A61F 2/24

{Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means}
Definition statement

This place covers:

Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means.

{using non-rotary electrical means}
Definition statement

This place covers:

Drive systems therefor using non-rotary electrical means e.g. electromagnetic means, magnetostrictive means, thermo-electric-means, piezoelectric means

References
Limiting references

This place does not cover:

Drives involving a rotary motor

A61M 1/1046

{using a blood vessel as flexible element (not used, see subgroups)}
Definition statement

This place covers:

Pumps using a blood vessel as flexible element even if the blood vessel is a prosthesis

Special rules of classification

documents are only classified in the parallel Indexing Code-code

{using the heart as flexible element}
Definition statement

This place covers:

Pumps using the heart wall as a flexible element, i.e. by acting directly on the heart wall, e.g. by enveloping the heart

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bags, strips or bands to improve the function of the heart muscle

A61F 2/2481

{Pulsating membrane pumps without valves, e.g. for counter pulsation, extra-arterial balloon pumps}
Definition statement

This place covers:

Pulsating membrane pumps without valves, e.g. for counter pulsation, extra-arterial balloon pumps

{Intra-arterial balloon pumps, e.g. intra-aortic (intravascular pumps A61M 1/125)}
References
Limiting references

This place does not cover:

Other intravascular pumps

A61M 1/125

{Piston pumps}
References
Limiting references

This place does not cover:

Constructive details of valves therefor

A61F 2/24

{Regulating or controlling systems therefor}
Definition statement

This place covers:

Electronical or mechanical regulation or controlling systems for any type of blood pumps

implantable into the body {(not used, see subgroups)}
References
Limiting references

This place does not cover:

Membrane pumps using a blood vessel as flexible element

A61M 1/1067

Intravascular balloon pumps

A61M 1/1072

{Energy supply devices, converters therefor}
Definition statement

This place covers:

Energy supply devices and converters therefor for all types of blood pumps

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Telemetry, communication with implanted devices

A61M 2205/3507

Dialysis systems; Artificial kidneys; Blood oxygenators; {Reciprocating systems for treatment of body fluids, e.g. single needle systems for haemofiltration, pheris (haemofiltration using non reciprocating systems A61M 1/34; extracorporeal blood circuit aspects A61M 1/36)}; (processes of separation using semi-permeable membranes B01D 61/00; semi-permeable membranes characterised by the material, manufacturing processes therefor B01D 71/00)
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Peritoneal dialysis catheters

A61M 1/285

Haemofiltration using non reciprocating systems

A61M 1/34

Extracorporeal blood circuit aspects

A61M 1/36

Processes of separation using semi-permeable membranes

B01D 61/00

Semi-permeable membranes characterized by the material, manufacturing processes therefor

B01D 71/00

with membranes {(A61M 1/30 takes precedence; membranes per se B01D 69/00, B01D 71/00)}
Definition statement

This place covers:

Dialysis systems, artificial kidneys and blood oxygenators where treatment involves a semi-permeable membrane separating blood from dialysate in a dialyser and separating blood from oxygen in an oxygenator

References
Limiting references

This place does not cover:

Single-needle systems

A61M 1/30

Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood circuits thereof

A61M 1/3621

Membranes per se

B01D 69/00

Materials and manufacturing or membranes

B01D 71/00

{Dialysates therefor}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Chemical formulae of dialysates

A61K 31/00

Medicinal preparation containing inorganic ingredients

A61K 33/00

Treating water for medical purposes

C02F 2103/026

{Apparatus for preparing dialysates (with regeneration of dialysates A61M 1/1696)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

With regeneration of dialysates

A61M 1/1696

{Degasification (in general B01D 19/00)}
Definition statement

This place covers:

Degasification of dialysates

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Degasification in general

B01D 19/00

{intracorporal (A61M 1/28 and A61F 2/022 take precedence)}
Definition statement

This place covers:

Intracorporal (e.g. implanted) dialysis systems, artificial kidneys, blood oxygenators.

References
Limiting references

This place does not cover:

Peritoneal dialysis

A61M 1/28

Artificial glands

A61F 2/022

Implanted artificial glands using bioreactors

A61F 2/022

{Sterilisation or cleaning before or after use (sterilisation of materials in general A61L; cleaning or sterilisation of membrane modules apart from the machine B01D 65/02)}
Definition statement

This place covers:

Sterilisation or cleaning before or after use of the dialysis device, artificial kidneys or blood oxygenators, this can be both the dialysate or the blood side of the device and is not limited to self-cleaning.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Priming, rinsing blood circuits before or after use

A61M 1/3643

Sterilisation of materials in general

A61L 2/00

Cleaning or sterilisation of membrane modules apart from the machine

B01D 65/02

{by heat}
Definition statement

This place covers:

Sterilization or cleaning by heat, e.g. by steam

{using chemical substances}
References
Limiting references

This place does not cover:

Priming,rinsing blood circuits before or after use

A61M 1/3643

{Detection of blood traces in dialysate (testing of the membrane modules B01D 65/10; investigating fluid-tightness of structures in general G01M 3/00)}
Definition statement

This place covers:

Dialysis systems where means are provided for detecting traces of blood in the dialysate, e.g. to detect the presence of a leak in the membrane

References
Limiting references

This place does not cover:

Other testing of filters for leaks

A61M 2205/705

Informative references

Attention is drawn to the following places, which may be of interest for search:

Testing the membrane modules

B01D 65/10

Investigating fluid-tightness of structures in general

G01M 3/00

{with recirculating dialysing liquid}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Peritoneal dialysis

A61M 1/28

{with dialysate regeneration}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Substitution fluid using dialysate

A61M 1/3465

{Blood oxygenators with or without heat-exchangers (A61M 1/1678 takes precedence; membranes therefor B01D 67/00, B01D 69/00, B01D 71/00)}
References
Limiting references

This place does not cover:

Intracorporal oxygenators

A61M 1/1678

Informative references

Attention is drawn to the following places, which may be of interest for search:

Manufacturing of membranes therefor

B01D 67/00

Form or properties of membranes therefor

B01D 69/00

Materials and manufacturing of membranes therefor

B01D 71/00

{and internal elements} which are moving
Definition statement

This place covers:

Dialysis systems, artificial kidneys and blood oxygenators which incorporate elements internal to the treatment module where the membrane is located which are moving (e.g. moving membranes)

Special rules of classification

Only used as an Indexing Code, documents are classified in B01D

Peritoneal dialysis {; Other peritoneal treatment, e.g. oxygenation}
Definition statement

This place covers:

contains also other peritoneal treatment, e.g. oxygenation

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Irrigation systems

A61M 3/02

Sterile connections

A61M 39/10

Bags therefor

A61J 1/10

{Catheters therefor}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sterile connections

A61M 39/10

{Dialysates therefor}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For other dialysates

A61M 1/1654

Preparation of dialysates

A61M 1/1656

{Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for haemofiltration, pheresis}
Definition statement

This place covers:

Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for haemofiltration, pheresis

Oxygenators without membranes
Definition statement

This place covers:

Oxygenators without membranes e.g. bubble oxygenators

Filtering material out of the blood by passing it through a membrane, i.e. haemofiltration, diafiltration {(A61M 1/30 takes precedence; extracorporeal blood circuit aspects A61M 1/36)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Single-needle systems

A61M 1/30

Extracorporeal blood circuit aspects

A61M 1/36

{Diafiltration}
Definition statement

This place covers:

Combined dialysis (i.e. using dialysate) and haemofiltration (i.e. with considerable amounts of ultrafiltrate requiring substitution).

{Adding solutions to the blood, e.g. substitution solutions (for preventing coagulation A61M 1/3672)}
References
Limiting references

This place does not cover:

For preventing coagulation

A61M 1/3672

{Substitution rate control as a function of the ultrafiltration rate}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Weighing fresh and used dialysate

A61M 1/1643

{Substitution fluids}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Using dialysate as substitution fluid

A61M 1/3465

{Circuits for the preparation thereof}
Definition statement

This place covers:

Fluidic circuits for the preparation of substitution fluids.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Using dialysate as substitution fluid

A61M 1/3465

Special rules of classification

The fact that the circuits are fluidic does not exclude that they may be electrically controlled.

{with treatment of the filtrate}
Definition statement

This place covers:

Filtering material out of the blood by passing it through a membrane, i.e. haemofiltration, diafiltration, with treatment of the filtrate, e.g. by filtration, dialysis, absorption, chemical treatment, biological treatment, heating

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

with treatment of the filtrate with treatment agent in the same enclosure as the membrane

A61M 1/3475

with treatment of the filtrate by dialysing the filtrate

A61M 1/3479

with treatment of the filtrate by filtrating the filtrate using another crossflow filter, e.g. a membrane filter

A61M 1/3482

with biological or chemical treatment of the filtrate, e.g. chemical precipitation, treatment by absorbents

A61M 1/3486

with treatment of the filtrate by using treatment agents in suspension

A61M 1/3493

{Plasmapheresis; Leucopheresis; Lymphopheresis (A61M 1/3472 takes precedence; single-needle processes A61M 1/30)}
References
Limiting references

This place does not cover:

With treatment of the filtrate

A61M 1/3472

Informative references

Attention is drawn to the following places, which may be of interest for search:

Single-needle processes

A61M 1/30

Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation {; Extra-corporeal blood circuits}
Definition statement

This place covers:

Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation

{Extra-corporeal blood circuits (single-needle circuits A61M 1/30)}
Definition statement

This place covers:

Includes all blood circuits (e.g. also for dialysis, haemofiltration), single needle circuits excepted.

References
Limiting references

This place does not cover:

Single-needle circuits

A61M 1/30

Double lumen needles

A61M 5/1582

Multi lumen catheters

A61M 25/0026

{Level detectors; Level control}
Definition statement

This place covers:

Blood level detectors and blood level control.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring liquid level in infusion

A61M 5/1684

Optical liquid level detectors in general

G01F 23/292

Measuring liquid level in general

G01F 25/0061

{Gas bubble detectors (blood leak detection by change of transparency of dialysate A61M 1/1692; in infusion devices A61M 5/365; observing bubbles in a liquid pool for leak detection, in general G01M 3/06)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood leak detection by change of transparency of dialysate

A61M 1/1692

In infusion devices

A61M 5/365

Observing bubbles in a liquid pool for leak detection, in general

G01M 3/06

{Degassing devices; Buffer reservoirs; Drip chambers; Blood filters (priming A61M 1/3643; blood filters for infusion A61M 5/165)}
Definition statement

This place covers:

Degassing devices, buffer reservoirs, drip chambers, blood filters, these devices can be isolated but often some of them are combined in one device

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Filters for solid matter in combination with suction devices

A61M 1/0056

Priming

A61M 1/3643

Blood filters for infusion

A61M 5/165

{Blood component filters, e.g. leukocyte filters}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Filters for lipoids

A61M 1/3627

Type of blood component

A61M 2202/04

Filtering out liquids in general

B01D 39/00

{Blood pressure control, pressure transducers specially adapted therefor}
Definition statement

This place covers:

Blood pressure control in the extracorporeal circuit of a blood treatment system and pressure transducers specially adapted therefor

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Control of inversion time between collection and reinfusion phase in single needle systems by pressure control

A61M 1/305

Blood pressure measurement on the patient

A61B 5/02

{Priming, rinsing before or after use}
Definition statement

This place covers:

Priming, rinsing before or after use of the extracorporeal blood circuit

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sterilizing the dialyser

A61M 1/168

Arrangements for blood volume reduction

A61M 1/3606

Rinsing for regenerating the filter

A61M 2205/7554

{Interfaces between patient blood circulation and extra-corporal blood circuit}
Definition statement

This place covers:

Interfaces between the blood circulation of the patient and the extra-corporal blood circuit, e.g. mechanical interfaces such as adapted catheters, needles, cannulas, or electrical interfaces, e.g. electrodes for monitoring proper connection of the patient to the blood circuit

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheter holding devices

A61M 25/02

{Arterio-venous shunts, fistulae}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Access sites

A61M 39/02

{Flow rate transducers; Flow integrators (measuring the flow in general G01F)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring flow in general

G01F

{for preparing cardioplegia solutions}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Means for cooling

A61M 2205/3606

{Cardiac or cardiopulmonary bypass, e.g. heart-lung machines}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

With assisted venous return

A61M 1/3667

{Electrical impedance measurement of body fluids; transducers specially adapted therefor}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Other measuring of impedance

A61M 2205/3317

{Circuit parts not covered by the preceding subgroups of group A61M 1/3621}
Definition statement

This place covers:

Circuit parts not covered by the preceeding subgroups of group A61M 1/3621 e.g. connectors, sensors and valves

References
Limiting references

This place does not cover:

Level detectors

A61M 1/3624

Gas bubble detectors

A61M 1/3626

Degassing devices

A61M 1/3627

Blood pressure control

A61M 1/3639

Priming

A61M 1/3643

Interfaces

A61M 1/3653

Flow rate Transducers

A61M 1/3663

For cardioplegia

A61M 1/3664

Cardiac bypass

A61M 1/3666

Impedance measurement

A61M 1/3669

{Means preventing coagulation (aspiration tips with anticoagulant delivery A61M 1/0084)}
Definition statement

This place covers:

Extra-corporeal blood circuits having means preventing coagulation of the blood, e.g. heparine infusion or anticoagulant coating or a geometrical configuration described as minimizing coagulation

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Aspiration tips with anticoagulant delivery

A61M 1/0084

{Deactivation}
Definition statement

This place covers:

Extra-corporeal blood circuits having means (e.g. chemical, in the blood) preventing coagulation of the blood, which means are thereafter deactivated (e.g. removed or neutralized so as not to compromise the health of the patient)

Synonyms and Keywords

In patent documents, the following words/expressions are often used as synonyms:

  • " heparin", "ACD" , "citrate" and " liquemine"
{by absorption (A61M 1/3675 takes precedence)}
Definition statement

This place covers:

Extra-corporeal blood circuits whereby the blood is treated by absorption (the absorption of anticoagulants being classified in A61M 1/3675)

References
Limiting references

This place does not cover:

Deactivation of means preventing coagulation

A61M 1/3675

Informative references

Attention is drawn to the following places, which may be of interest for search:

Related fluid circuits

A61M 1/3621

Special rules of classification

Distinction between absorption and chemical treatment not always easy, therefore see also

A61M 1/3687

{by irradiation}
Definition statement

This place covers:

Extra-corporeal blood circuits in which the blood is treated by irradiation of any wavelength

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sterilization by irradiation in general

A61L

{Chemical treatment (A61M 1/3675 takes precedence)}
Definition statement

This place covers:

Extra-corporeal blood circuits in which the blood is treated by chemical means

References
Limiting references

This place does not cover:

Related fluid circuits

A61M 1/3621

Deactivation of means preventing coagulation

A61M 1/3675

Special rules of classification

Distinction between absorption and chemical treatment not always easy, therefore see also A61M 1/3679

{Temperature treatment (heating or cooling infusion media A61M 5/44)}
Definition statement

This place covers:

Hypo-, and hyperthermia devices; not intended for preservation nor for adapting to body temperature, but for treatments with intended irreversible results

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Heating or cooling devices for bringing media into the body or the media

A61M 5/44

Hypothermia

A61M 19/00

Heating or cooling the body for treatment

A61F 7/00

{using separation based on different densities of components, e.g. centrifuging}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Multiple bag systems therefor

A61M 1/0209

Rotating membrane filtering

A61M 1/262

Centrifuges in general

B04B 5/00

Removing constituents from donor blood and {storing or} returning remainder to body {, e.g. for transfusion}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood transfusion apparatus

A61M 1/02

Medical syringes, e.g. enemata; Irrigators (A61M 5/00 takes precedence; pistons A61M 5/315)
Definition statement

This place covers:

Medical syringes used for irrigation, e.g. enemata as well as medical irrigators.

Relationships with other classification places

Irrigation systems when combined with suction means classified in A61M 3/00 if the focus of the invention information is on irrigation and in A61M 1/0058 if the focus is on suction. In both cases an additional classification information in the other field may be given.

References
Limiting references

This place does not cover:

Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way, e.g. syringes, needles

A61M 5/00

Pistons

A61M 5/315

Catheters

A61M 25/00

Dilators

A61M 29/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Suction-irrigation systems

A61M 1/0058

Drainage tubes with fluid supply means

A61M 1/0084

Pistons in syringes for use in subcutaneous, intra-vascular or intramuscular way

A61M 5/315

Introducing media into body cavities

A61M 31/00

For colostomy

A61F 5/442

Ophthalmic surgery

A61F 9/007

Baths

A61H 35/00

Eye baths

A61H 35/02

Nose baths

A61H 35/04

Special rules of classification

The breakdown symbols (i.e. the non "parallel" or non "mirror" symbols) and "orthogonal" symbols are to be used for classifying the invention information (in addition to the invention symbols) in case the invention is insufficiently classified by an invention information symbol. They are also to be used for classifying the additional information. They are stored in the additional information field. The "orthogonal" Indexing Codes scheme is also used.

Further details of subgroups

characteristics of the fluid: A61M 3/0204

before use: A61M 3/0208

after use: A61M 3/0212

pressure: A61M 3/0216

volume; flow rate: A61M 3/022

catheter holding devices see A61M 25/02

colostomy with irrigation port see A61F 5/442

This group does not cover devices whose main object is suctioning and which moreover have irrigation means, these are classified in A61M 1/0084

spraying on the skin: A61H 9/0028

surgical drapes with drain fluid collection means A61B 2046/236

splash shields for protection of the surgeon: A61B 90/05

glossary: splash shield

bidets in general see E03D 9/08

Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests ({vaccination appliances for veterinary use A61D 1/025} ; tube connectors, tube couplings, valves or branch units specially adapted for medical use A61M 39/00; containers specially adapted for medical or pharmaceutical purposes A61J 1/00; {combinations of vial and syringe for mixing or transferring their contents A61J 1/20; holders for containers for collecting, storing or administering blood or medical fluids A61J 1/16})
Definition statement

This place covers:

Infusion devices (infusion by gravity, infusion pumps, infusion needles, flow control etc.), syringes and details therefrom (automatic syringes, ampoules syringes, syringe cartridges, pistons, needles), means for preventing injection of air in body, means for desensitising skin, means for cooling or heating media to be infused, means for controlling depth of insertion.

References
Limiting references

This place does not cover:

Suction devices for medical purposes, blood pumps, blood filters…

A61M 1/00

Catheters

A61M 25/00

Devices for transducing body media or for taking media from the body

A61B 5/00, A61B 5/15

Introducing media into/onto bodies of animals

A61D 7/00

Implantable gland structures or devices, e.g. implantable artificial pancreas

A61F 2/022

Containers for medicinal or pharmaceutical purposes

A61J 1/00

Medicinal preparations

A61K 35/00

In vitro human cell grow apparatus

C12M 3/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Blood transfusion

A61M 1/02

Means for agitating

A61M 1/025

Blood oxygenators

A61M 1/14

Hemofiltration equipment

A61M 1/34

Blood filters

A61M 1/34, A61M 1/36

Non-implantable gland structures or devices, e.g. non-implantable artificial pancreas

A61M 1/3489, A61M 1/3679, A61M 1/3689

Temperature treatment for blood

A61M 1/369

Infusion devices using feedback of body parameters, e.g. blood-sugar, pressure, artificial pancreas

A61M 5/1723

Pressure measurement lumen

A61M 2025/0003

Connecting catheter tubes to hubs

A61M 25/0014

Guide needles for catheters

A61M 25/065

Diffusion through the skin

A61M 35/00

Microneedles

A61M 37/00

Access sites

A61M 39/02

Detecting tissue temperature for diagnostic purposes

A61M 39/0247

Y-connectors

A61M 39/10

Measuring of body parameters

A61B 5/00

Syringes for taking blood samples

A61B 5/14

Surgical glue applicators

A61B 17/00491

Syringes for injecting impression materials

A61C 9/0026

Ampoules or carpules

A61J 1/06

Combination of vial and syringe for mixing or transferring their contents

A61J 1/2096

Making filter elements

B01D 29/111

Burettes, measuring cylinders for laboratory use

B01L 3/02

Heating or cooling in general

B01L 7/00

Disintegrating medical waste

B02C 19/0075

Disposal of medical waste in general

B09B 3/0075

Making of hollow needles

B21G 1/08

Grinding sharp-pointed work pieces

B24B 19/16

Filling of medical containers in general

B65B 3/003, A61J 1/20

Pressurized by contraction of elastic reservoir, in general

B65D 83/0061

Receptacles for refuse disposal in general

B65F 1/00

Cell injection devices

C12M 3/006

Linear peristaltic pumps, in general

F04B 43/12

Telescopic rods

F16B 7/10

Valves in general

F16K

Heat exchange in general

F28C, F28D, F28F, F28G

Hypodermic projectiles

F42B 12/54

Apparatus of the syringe type

G01F 11/027

Indicating or measuring liquid levels

G01F 23/292

Systems or apparatus for checking the occurrence of a condition

G07C 11/00

Holders comprising label

G09F 3/0295

ICT specially adapted for therapies or health-improving plans (e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance) relating to drugs or medications (e.g. for ensuring correct administration to patients)

G16H 20/10

Holders for storage of radioactive sources

G21F 5/018

Heating by electric fields

H05B 6/80

Special rules of classification

The classification of "additional information" in the group is mandatory, but only if the additional information has some importance.

For example, the main invention is an infusion pump of the reciprocating piston type (A61M 5/14216), but a regulating valve (A61M 5/16881) is present in the device. If the valve is just mentioned as being a general valve with no specific details given on how the valve relates to the pump, then it is not worth giving a class in the field of valves. On the contrary, if the valve is well described and presents some interesting features that cooperates with features from the pump, then the document should also be classified in the field of regulating valves.

In A61B 8/0891 , the blood vessels is analysed for diagnosis purpose only. All couplings and connectors are classified in A61M 39/00.

Further details of subgroups

Delivery of contrast media

This subgroup also comprises various accessories for infusing by gravity, like drip chambers or hanging up devices (see relevant sub-classes).

Most subdivisions in this subgroup mainly describe the way in which the infusion pump works (peristaltic pump, roller pump, impeller pump…).

Other subdivisions however also relates to the fact that the pump is portable or implantable.

These two subgroups contain general information on infusion needles. The details of said needles can be found in A61M 5/32 and A61M 5/34.

Blood filters are now found in A61M 1/34 and A61M 1/36.

This subgroup contains flow controllers (regulating the flow of media), but also means for sensing or detecting flow anomalies.

Many different kind of syringes can be found in these sub groups. The automatic syringes (a certain action on a trigger will start the automatic injection of the media, no further action being required from the user) are found in A61M 5/20. A61M 5/24 and A61M 5/28 regroups the ampoules syringes. In A61M 5/24 the syringe bears the needle, in A61M 5/28 the needle is present on the ampoule.

A61M 5/30 relates to syringes for injection by jet action, also know as needleless syringes.

More syringes can also be found in other fields (A61J 1/00-A61J 1/22, A61B 5/14, A61B 17/00-A61B 17/921). A61M 5/31 and A61M 5/315 general details of syringes (caps, constructional features, priming, valves, plugs, filling, etc.) can be found in the subgroup A61M 5/31.

The subgroup A61M 5/315 relates to detail of the piston (construction, blocking means, etc.), but also to dosing mechanisms (gears, electrical parts, axial movements, rotational movements) and other dosing-related subjects (feedback, keeping track of administered doses, etc.).

This subgroup deals with details of needles, and especially with ways to protect the user from the needle (needle caps, apparatus for removing or destroying needles, semi- or fully-automatic retractable needles, semi- or fully-automatic needle sleeves for protecting the needle, etc.).

In the blood vessel is located prior to an injection (treatment).

This subgroup deals with means for cooling or heating the device (pump, syringe, etc.) or the media contained in the device (infusate, medicine, etc.).

Often forgotten, this group useful group deals with means for preventing re-use, or also for indicating if the device has already been used or tampered with.

Baths for subaquatic intestinal cleaning
Relationships with other classification places

Baths are also classified in A61H 35/00 and A61H 33/00

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Irrigators

A61M 3/00

Bathing devices for special therapeutic or hygienic purpose

A61H 33/00

Baths

A61H 35/00

Sprayers or atomisers specially adapted for therapeutic purposes (in general B05B; {aerosol containers B65D 83/14})
Definition statement

This place covers:

Sprayers or atomisers of liquid, e.g. medication, water for humidification

References
Limiting references

This place does not cover:

Device to humidify the respiration air

A61M 16/16

Informative references

Attention is drawn to the following places, which may be of interest for search:

Irrigator

A61M 3/00

Spraying onto the body

A61M 35/00

Bath for the nose

A61H 35/04

Sprayers or atomisers specially adapted for therapeutic purposes in general

B05B

Aerosol container

B65D 83/14

Special rules of classification

Also contains nebulizers.

The "subdivision" Indexing Code symbols (i.e. the non "parallel" Indexing Code symbols) are used for classifying as well the invention information as the additional information. They are stored only in the additional information field". The "orthogonal" Indexing Code symbols are also used.

{using ultrasonics (spraying or atomising liquids using ultrasonic vibrations in general B05B 17/06)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Inhalators using ultrasonic

A61M 15/0085

Spraying or atomising liquids using ultrasonic vibrations in general

B05B 17/06

operated by air {or other gas} pressure applied to the liquid {or other product} to be sprayed or atomised {(sprayers for horticulture A01G, A01H; killing insects A01M; air humidifying by nozzles F24F 6/14, F24F 6/18; cooling by spraying F28B, F28C)}
Definition statement

This place covers:

Devices with positive air pressure.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sprayers for horticulture

A01G, A01H

Killing insects

A01M

Air disinfection

A61L 9/03

Atomizer for painting

B05B

Adding O2, perfume to air

B60H 3/0007

Air humidifying by nozzles

F24F 6/14, F24F 6/18

Cooling by spraying

F28B, F28C

Special rules of classification

The positive air pressure be created by any means (i.e., piston, pre-pressurized canister with propellant, etc.)

operated by the vapour pressure of the liquid to be sprayed or atomised {(air-humidification, e.g. "room humidifiers" F24F 6/00)}
Definition statement

This place covers:

Electrical heated vaporiser, e.g. devices in which the vapor pressure of the liquid acting in a confined space is used to propel the liquid through an orifice to spray or atomize the liquid.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Humidifiers

A61M 16/16

Air-humidification, e.g. "room humidifiers"

F24F 6/00

Electrical heated vaporizers

F24H 1/00

{using heaters}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Heating the liquid

A61M 16/109

Special rules of classification

Heater vaporizes the liquid or acts on liquid in confined space to increase vapour pressure.

of the injector type
Definition statement

This place covers:

Devices with a venturi system, i.e. non pocket size.

References
Limiting references

This place does not cover:

Pocket atomiser

A61M 11/08

Informative references

Attention is drawn to the following places, which may be of interest for search:

Operated by air

A61M 11/02

Spraying apparatus

B05B 7/0012

Single unit with follower

B05B 11/02

Pocket atomisers of the injector type {(aerosol cans A61M 15/009)}
Definition statement

This place covers:

Devices with a venturi system, i.e. pocket size.

References
Limiting references

This place does not cover:

Injector type, i.e. non pocket

A61M 11/06

Informative references

Attention is drawn to the following places, which may be of interest for search:

Aerosol cans

A61M 15/009

Insufflators for therapeutic or disinfectant purposes {, i.e. devices for blowing a gas, powder or vapour into the body (hand-held units in which gas flow is produced by muscular energy at the moment of use B05B 11/062)}
Definition statement

This place covers:

Devices to inflate a cavity for easy access.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Hand-held units in which gas flow is produced by muscular energy at the moment of use

B05B 11/062

Special rules of classification

The "subdivision" Indexing Code symbols (i.e. the non "parallel" Indexing Code symbols) are used for classifying as well the invention information as the additional information. They are stored only in the additional information field"

The "orthogonal" Indexing Code symbols are also used.

{Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

For the destruction of noxious animals or noxious plants

A01M

Instrument for medical examination

A61B 1/00

Insufflating needles therefor

A61B 17/3474

Inhalators {(drug delivery in endotracheal tubes A61M 16/04)}
Definition statement

This place covers:

Devices or processes specially adapted to be used to insert or place media into human bodies by enhancing a naturally occurring method other than oral.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Drug delivery in endotracheal tubes

A61M 16/04

For animals

A61D 7/04

Medicinal preparation for inhaling

A61K 9/0073

Special rules of classification

The "subdivision" Indexing Code symbols (i.e. the non "parallel" Indexing Code symbols) are used for classifying as well the invention information as the additional information. They are stored only in the additional information field"

The "orthogonal" Indexing Code symbols are also used.

{using prepacked dosages, one for each application, e.g. capsules to be perforated or broken-up}
Definition statement

This place covers:

Inhalators with unit dose with manual feeding, e.g the single dose is inserted manually in the inhaler.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Injector type

A61M 11/06

Single unit with follower

B05B 11/02

{using multiple prepacked dosages on a same carrier, e.g. blisters}
Definition statement

This place covers:

An inhaler/inhalator that accepts a package containing plural dosages of inhalant, e.g. multi-unit dose, with automatic feeding

{Inhalators with dosage or measuring devices (A61M 15/0028 takes precedence; dosage devices incorporated in aerosol cans B65D 83/52)}
Definition statement

This place covers:

Inhalators with multi-dose reservoir, i.e. without capsule or blister

References
Limiting references

This place does not cover:

Using prepacked dosages

A61M 15/0028

Informative references

Attention is drawn to the following places, which may be of interest for search:

With aerosol and not described dosing

A61M 15/009

Details of the spray nozzle

B05B

Dosage devices incorporated in aerosol cans

B65D 83/52

{using ultrasonics (spraying or atomising liquids using ultrasonic vibrations in general B05B 17/06)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sprayers using ultrasonic

A61M 11/005

Spraying or atomising liquids using ultrasonic vibrations in general

B05B 17/06

{Inhalation chambers}
Definition statement

This place covers:

Inhalators with spacers

{using medicine packages with incorporated spraying means, e.g. aerosol cans (pocket atomiser of the injector type A61M 11/08)}
Definition statement

This place covers:

Inhalators having a pressurized container, e.g. Metered Dose Inhaler (MDI). A sufficient structure to generate the spray is part of a package that is introduced into the inhalator and subsequently removed for disposal.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pocket atomiser of the injector type

A61M 11/08

Dosing

A61M 15/0065

Details of the spray nozzle

B05B

Aeorosol container

B65D 83/14

{mechanically breath-triggered}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Inhalation valve providing indirect breath activation

A61M 15/0013

Inhalation detection

A61M 2016/0015

Flow sensor

A61M 2016/003

with activated or ionised {fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices}; Ozone-inhalators {with radioactive tagged particles}
Definition statement

This place covers:

Also bubble jet technology inhalators.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Bubble jet

A61M 15/025

Sterilisation, deodorisation of air

A61L 9/14

Sterilisation using UV light

A61L 9/20

Electrostatic spray gun

B05B 5/025

Apparatus for generating ions

H01T 23/00

Inhaling appliances shaped like cigars, cigarettes or pipes {(simulated smoking devices, e.g. imitation cigarettes, A24F 47/002)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Simulated smoking devices, e.g. imitation cigarettes

A24F 47/002

Inhaling devices inserted into the nose
Definition statement

This place covers:

Also eyes drop, aromatherapy devices.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Irrigation

A61M 3/00

Using the smell sense

A61M 2021/0016

Correcting deformities of the nose

A61F 5/08

Bath for nose

A61H 35/04

Eucaliptus vaporizer

A61L 9/14

Spraying apparatus

B05B 11/00

Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes (stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means A61H 31/00)
Definition statement

This place covers:

Respirator, ventilator, devices for inflating the lungs

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pneumothorax apparatus

A61M 1/04

Anaesthesia apparatus

A61M 16/01

Inserts in the lungs, e.g. stents

A61F 2002/043

Correcting deformities of the nose

A61F 5/08

Device for preventing snoring

A61F 5/56

Supply appliance

A61G 13/107

Stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means

A61H 31/00

Supine patient supports therefor

A61H 31/008

Gas bath

A61H 33/00

Respiratory apparatus in general

A62B

Breathing simulator

A62B 9/003

Testing ventilators

A62B 27/00, A61M 2209/02

Portable appliance comprising a gas cartridge

B01F 3/04801

Respirators for working under water

B63C 11/00

Hyperbaric chamber

B63C 11/32, A61G 10/026

Wall plug

F16L 37/24, F16L 37/107, F16L 5/02, F16L 29/02

Gas reservoir

F17C

Pipelines, hospital facility gas supply system

F17D 1/02

Computer driven apparatus

G06F 17/00

Models for artificial respiration

G09B 23/288

Special rules of classification

Classification using breakdown symbols and orthogonal symbols (i.e. symbols in the 2000 range) is compulsory.

{Means for re-breathing exhaled gases, e.g. for hyperventilation treatment}
Definition statement

This place covers:

Also devices for hypoxic delivery of gas, e.g CO2.

References
Limiting references

This place does not cover:

CO2 absorbing device

A61M 16/22

Informative references

Attention is drawn to the following places, which may be of interest for search:

Hyperbaric training room

A61G 10/026

Hypoxic training

A63B 23/18

Training device

A63B 2213/006

{Mouth-to-mouth respiration (teaching or training models G09B 23/288)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Teaching or training models

G09B 23/288

{with alarm devices}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Alarm in devices for introducing media

A61M 2205/18

Audible feedback

A61M 2205/581

Tactile feedback

A61M 2205/582

Visual feedback

A61M 2205/583

Alarm for measuring apparatus

G01L 19/12

Special rules of classification

Classification using breakdown symbols and orthogonal symbols (i.e. symbols in the 2000 range) is compulsory.

{Liquid ventilation}
Definition statement

This place covers:

Also ventilation in aerosol form.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Oxygenated solution

A61M 2202/0476

{Pumps therefor}
Definition statement

This place covers:

Pumps with variable mechanical maximum volume, limited stroke, hand driven, motor driven, otherwise driven.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Medical pump

A61M 1/00

Air pumping means for inhalator

A61M 11/006

Reinflatable by elasticity

A61M 16/0084

Other air pumps

A61M 2205/07

Mask with pump

A62B 18/006

Pumps in general

F04

Special rules of classification

The devices classified in A61M 16/0075, A61M 16/0078 are often inflatable (mostly in anaesthesia), but are not reinflatable by elasticity.

{Blowers or centrifugal pumps}
Definition statement

This place covers:

Pumps in the form of a fan, a turbine.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Helmet with fan

A62B 18/045

Gas pump in general

F04D

{Tidal volume piston pumps}
Definition statement

This place covers:

Tidal-Volume means a precise inspiratory volume, e.g. single stroke piston pump.

{Breathing bags}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Buffer chamber

A61M 15/0086

Reinflatable by elasticity

A61M 16/0084

Material therefor

B23B 27/12

{Removing used or expired gases or anaesthetic vapours (Filtering, sterilising or disinfecting the exhaust air in drainage systems A61M 1/0052; Bacterial filters in the expiratory path A61M 16/1065)}
Definition statement

This place covers:

Devices with charcoal, active carbon filter

References
Limiting references

This place does not cover:

Filtering, sterilising or disinfecting the exhaust air in drainage systems

A61M 1/0052

Bacterial filters in the expiratory path

A61M 16/1065

{High frequency jet ventilation}
Definition statement

This place covers:

Mainly used for ventilation without respiratory movement, or in case of lung puncture.

specially adapted for anaesthetising {(A61M 16/104, A61M 16/18 take precedence)}
Definition statement

This place covers:

Ventilation devices used for anaesthesia.

These devices include in general a closed circuit generally including a CO2 absorber.

References
Limiting references

This place does not cover:

Anaesthetic mixer

A61M 16/104

Vaporizers

A61M 16/18

Informative references

Attention is drawn to the following places, which may be of interest for search:

CO2 absorber

A61M 16/22

Determining the level of anesthesia

A61B 5/4821

{operated by electrical means (A61M 16/202A61M 16/205 take precedence)}
References
Limiting references

This place does not cover:

Controlled valves being electrically actuated

A61M 16/202 - A61M 16/205

Informative references

Attention is drawn to the following places, which may be of interest for search:

Monitoring the respiratory organs

A61B 5/08

Electric stimulation by contact electrodes

A61N 1/3601

{Control means therefor}
Definition statement

This place covers:

Control means including automated or user control having displays with feedback.

{including calculation means, e.g. using a processor}
Definition statement

This place covers:

Devices having analog or digital calculators, microprocessors, or computers as the calculation means.

Devices calculating characteristics such as resistance, compliance, or comparison against threshold values.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring the resistance or compliance of the lungs

A61M 2230/46

{specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis}
Definition statement

This place covers:

Estimation systems, prediction systems, systems using root square, regression, or correlation techniques, Proportional-Integral-Derivative (PID) systems.

Tracheal tubes (catheters in general A61M 25/00)
Definition statement

This place covers:

They are tubes introduced generally through the mouth or the nose of the patient, e.g. endotracheal tubes.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters in general

A61M 25/00

Endoscope

A61B 1/00

Stethoscope

A61B 7/02

Prosthesis in the bronchi

A61F 2/04, A61F 2002/043

Y-shaped prosthesis

A61F 2002/065

Ostial prosthesis

A61F 2002/821

{External cuff pressure control or supply, e.g. synchronisation with respiration}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pressure indicating device

A61M 5/486, A61M 25/1018

Mushroom valve

A61M 16/206

Blood pressure cuff pressurizing apparatus

A61B

{Nasoendotracheal tubes}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Nasal cannula

A61M 16/0666

{combined with suction tubes, catheters or the like; Outside connections}
Definition statement

This place covers:

A manifold, a suction inside the tube.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Acces means to the stomach

A61M 16/0415

Aseptic insertion for cathters in general

A61M 25/0111

Gastrotomy feeding tube

A61J 15/0015

Special rules of classification

Also combined with drug delivery tube.

{Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters}
Definition statement

This place covers:

Tube introduced through the trachea, e.g. tracheostomy tube.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Obturators

A61M 16/0429

Artificial nose, transtracheal catheter, (trans)cricothyroid catheter, coniostomy prosthesis

A61F 2/203

{with valves at the proximal end limiting exhalation, e.g. during speaking or coughing (air passages from trachea to oesophagus or to pharynx, artificial epiglottis A61F 2/203)}
Definition statement

This place covers:

Example: To enable the patient to speak.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Air passages from trachea to oesophagus or to pharynx, artificial epiglottis

A61F 2/203

{Masks, filters, surgical pads, devices for absorbing secretions, specially adapted therefor}
Definition statement

This place covers:

Also plaster therefor

{Devices for performing a tracheostomy}
Definition statement

This place covers:

Tools for making an opening.

{Mouthpieces; Means for guiding, securing or introducing the tubes (guiding or introducing with laryngoscopes A61B 1/267; holding devices on the body A61M 25/02)}
Definition statement

This place covers:

Also includes holders.

References
Limiting references

This place does not cover:

Mouthpieces for live saving

A62B 9/06

Mouthpieces in lung exercisers

A63B 23/18

Mouthpieces for divers

B63C 11/186

Informative references

Attention is drawn to the following places, which may be of interest for search:

Obturators

A61M 16/0429

Holding devices on the body

A61M 25/02

Guiding or introducing with laryngoscopes

A61B 1/267

Detecting from outside

A61B 5/06

Head rest

A61B 90/14 , A61G 13/12, A61F 5/3707

Correcting deformities of the nose

A61F 5/08

Patient airway positionning

A61G 13/1215

Respiratory or anaesthetic masks
Definition statement

This place covers:

Also hoods, cups

References
Limiting references

This place does not cover:

Breathing masks in general

A62B 18/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Protective and/or surgical face mask

A41D 13/11

Correction of the deformities of the nose

A61F 5/08

First aid mask

A62B 17/04, A62B 18/00

Half mask

A62B 18/025

Fabrication by injection moulding

B29C

Fabrication of gas mask

B29D 99/0071

{Nasal cannulas or tubing (devices for improving normal breathing through the nose A61F 5/08; nose filters A62B 23/06; outside holding devices A61M 25/02)}
Definition statement

This place covers:

Also mounts for nasal tube.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Outside holding devices

A61M 25/02

Occluding, e.g. bellows

A61B 17/12022

Devices for improving normal breathing through the nose

A61F 5/08

Nose filters

A62B 23/06

{Holding devices therefor}
Definition statement

This place covers:

Strap, headgear.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Means for securing a tube

A61M 16/0488

Fastening means

A62B 18/084

Aquatic headgear

B63C 11/12

Bellows; Connecting tubes {(having means for taking samples G01N 1/22); Water traps; Patient circuits}
Definition statement

This place covers:

Between a ventilator and the mask.

References
Limiting references

This place does not cover:

Supports

F16M 11/00

Having means for taking samples

G01N 1/22

Informative references

Attention is drawn to the following places, which may be of interest for search:

Heated tubes

A61M 16/1095

Tube support

A61M 2209/082

{Condensation traps}
Definition statement

This place covers:

To dry the gas.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Vaporization chambers

A61M 16/18

Drying gas

B01D 53/26

{Joints or connectors}
Definition statement

This place covers:

Connector: the element between the ventilation device and the tube

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Tube connector

A61M 39/10

Detection of the connection

A61M 2205/14

Wall plug

F16L 37/24, F16L 37/107, F16L 5/02, F16L 29/02

{Connecting tubes}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Tubes

A61M 39/08

Hoses in general

F16L 11/00

Pipelines, hospital facility gas supply system

F17D 1/02

Preparation of respiratory gases or vapours
Definition statement

This place covers:

"Vapours": any substance in the vapour phase.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Local anaesthesia

A61M 19/00

O2 for aircraft

A62B 7/14, B64D 13/06

Cryogenic reservoir

F17C 9/02

{specially adapted for anaesthetics (A61M 16/18 takes precedence)}
Definition statement

This place covers:

Mixer for anaesthetics with safety solution.

References
Limiting references

This place does not cover:

Vaporizers

A61M 16/18

Informative references

Attention is drawn to the following places, which may be of interest for search:

Adapted for anaesthesia

A61M 16/01

Local anaesthesia

A61M 19/00

Veterinary applications

A61D 7/04

Mixing in general

B01F 3/02

{Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas}
Definition statement

This place covers:

HME, Heat and Moisture Exchanger, e.g. passive humidifier.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

CO2 canister

A61M 16/22

Special rules of classification

Also for anaesthetic agent.

{Filters (A61M 16/047, A61M 16/22 take precedence; water traps A61M 16/08)}
Definition statement

This place covers:

Gas filtering for medical purpose

References
Limiting references

This place does not cover:

Masks, filters, surgical pads, devices for absorbing secretions, specially adapted therefor

A61M 16/047

CO2 canister

A61M 16/22

Informative references

Attention is drawn to the following places, which may be of interest for search:

Water traps

A61M 16/0808

Respiratory filter

A62B 7/10

Filter in general

B01D 46/00

{by influencing the temperature (A61M 16/1045 takes precedence)}
Definition statement

This place covers:

The temperature of the gas or the liquid.

References
Limiting references

This place does not cover:

Heat and Moisture Exchanger

A61M 16/1045

Informative references

Attention is drawn to the following places, which may be of interest for search:

Tube

A61M 16/08

Heating

A61M 2205/36

Biomedical electrical heating control

H05B 1/025

by mixing different gases
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Anaesthesia mixer

A61M 16/104

Gas mixing in general

B01F 3/02

Filling gas container

F17C 5/06

Vessel with valves

F17C 13/045

by mixing different fluids, one of them being in a liquid phase
Definition statement

This place covers:

Also powder mixing with gas.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sprayers with venturi

A61M 11/06

Mixing in general

B01F 3/02

Devices to humidify the respiration air {(A61M 16/1045 takes precedence)}
References
Limiting references

This place does not cover:

Heat and Moisture Exchanger

A61M 16/1045

Informative references

Attention is drawn to the following places, which may be of interest for search:

Passive humidifier

A61M 16/1045

Vaporizer

A61M 16/18

CO2 canister

A61M 16/22

Steam bath

A61H 33/12

Mixing gas and liquid in general

B01F 3/04

Air-humidification, e.g. "room humidifiers"

F24F 6/00

Humidification in general

F24F 6/00, F24F 6/18, F22B 1/28

{Water-reservoir filling system, e.g. automatic}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Filling systems in general

B65D 5/32

Vaporising devices for anaesthetic preparations
Definition statement

This place covers:

Vaporizer for a product such as Halothane, e.g. halogenated ethers.

{Filling systems}
Definition statement

This place covers:

Anaesthetic-reservoir filling system; contains also level detection system therefor.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Level detection

A61M 2205/3379

Filling system

A61M 2209/045

Filling systems in general

B65D 5/32

{Locking systems}
Definition statement

This place covers:

System for safely locking a vaporizer to an anaesthesia machine; also for humidifier, bottles, switching system.

Valves specially adapted to medical respiratory devices
Definition statement

This place covers:

Also PEEP(Positive End Expiratory Pressure) valve.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Medical valve

A61M 39/22

Apparatus for passive exercising

A61H 1/00

Respiratory valve

A62B 9/02

Breathing training devices

A63B 23/18

Divers equipment

B63C 11/00

Valve in general

F16K

{Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves}
Definition statement

This place covers:

Check valve.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Vibration means

A61M 16/0006

Respiratory one-way valves

A62B 18/10

One-way valves in general

F16K 15/14, F16K 15/16

Special rules of classification

Also tanks

Carbon dioxide-absorbing devices {; Other means for removing carbon dioxide} (cartridges with absorbing substances for respiratory apparatus A62B 19/00)
Definition statement

This place covers:

CO2 canister, soda-lime canister

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Filter

A61M 16/1045, A61M 16/105

Cartridges with absorbing substances for respiratory apparatus

A62B 19/00

Local anaesthesia (syringes therefor A61M 5/00); Hypothermia (A61M 5/42 takes precedence; cooling blood in a bypass of the arterial system A61M 1/36)
References
Limiting references

This place does not cover:

Desensitising skin

A61M 5/42

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cooling blood in a bypass of the arterial system

A61M 1/36

Syringes therefor

A61M 5/00

Epidural puncture

A61B 17/3401

Cooling internal body cavities

A61F 7/12

Special rules of classification

The breakdown symbols (i.e. the non "parallel" or non "mirror" symbols) and "orthogonal" symbols are to be used for classifying the invention information (in addition to the invention symbols) in case the invention is insufficiently classified by an invention information symbol. They are also to be used for classifying the additional information. They are stored in the additional information field. The "subdivision" Indexing Code symbols (i.e. the non "parallel" Indexing Code symbols) are used for classifying as well the invention information as the additional information. They are stored only in the additional information field." The "orthogonal" Indexing Code symbols are also used.

Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
Definition statement

This place covers:

Devices or processes specially adapted to increase or decrease the mental activity of humans while awake (e.g., relax, stimulate) and that do so in a manner other than that which commonly occurs (e.g., creating boredom).

References
Limiting references

This place does not cover:

Informative references

Attention is drawn to the following places, which may be of interest for search:

Measuring the level of relaxation

A61B 5/16

Biorhythms

A61B 5/4857

Light or sound exposure not directed to the corresponding sensory organ

A61N

Psychological treatment using light therapy

A61N 5/0618

Respiratory rhythm indicators

A63B 23/185

Speech recognition

G10L 15/00

Tinnitus

H04R 25/75 , A61B 5/12

Special rules of classification

The "subdivision" Indexing Code symbols (i.e. the non "parallel" Indexing Code symbols) are used for classifying as well the invention information as the additional information. They are stored only in the additional information field".The "orthogonal" Indexing Code symbols are also used.

{Isolation chambers used therewith, i.e. for isolating individuals from external stimuli (other treatment rooms or enclosures A61G 10/00)}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Other treatment rooms or enclosures

A61G 10/00

Isolators

A61G 10/02

Bathing devices

A61H 33/00

for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N 1/36021)
References
Limiting references

This place does not cover:

Applying alternating or intermittent electric currents for producing

A61N 1/36021

Informative references

Attention is drawn to the following places, which may be of interest for search:

Analgesic delivery

A61M 5/00, A61M 16/00

Sleep evaluation

A61B 5/4806

For massage

A61H

Electrotherapy

A61N 1/3601

Catheters; Hollow probes (dilators A61M 29/00; {peritoneal catheters A61M 1/285; tracheal tubes A61M 16/04; for drainage A61M 27/00; for uterus, vagina or rectum A61M 31/00} ; for measuring or testing A61B; {materials for catheters A61L 29/00})
Definition statement

This place covers:

Static features, like structure, shape, mechanical properties and method of making of catheters.

References
Limiting references

This place does not cover:

Peritoneal catheter

A61M 1/285

Tracheal tubes

A61M 16/04

Dynamic features of catheters, like steering, guiding and advancing

A61M 25/01

Drainage tubes

A61M 27/00

Catheters for natural cavities (e.g. uterus, vagina, rectum)

A61M 31/00

Surgical instruments

A61B 17/00

Surgical instruments for veterinary use

A61D 1/00

Feeding tubes

A61J 15/00

Materials for catheters

A61L 29/00

Special rules of classification

Due to the more general character of the main group A61M 25/00 and its sub groups, there is an overlap with several different sub classes (A61B, A61F, A61N, A61J, A61K, A61L) and main groups, especially with the main groups A61B 17/00 (Surgical instruments, devices or methods), A61B 18/00 (Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body) and A61B 90/00 (Instruments, implements or accessories for surgery or diagnosis not covered) and their sub groups.

The difference should be made by the following (an example is given for surgical uses, but is valid for other uses as well, e.g. catheters for use in stent delivery see A61F 2/95, endoscopes see A61B 1/00, catheters for use as feeding tubes A61J 15/00):

If the technical feature, which appears to be the invention, is disclosed only in relationship with a surgical use, respectively adapted only for surgical use, it should be classified as invention information in the relevant sub group/sub groups of A61B 17/00, A61B 18/00 or A61B 90/00.

If this technical feature appears to add a beneficial contribution to the documentation in A61M 25/00, then classify it as additional information in the relevant sub group/sub groups of A61M 25/00.

If the technical feature, which appears to be the invention, is disclosed in a general way, i.e. only one embodiment relates to a surgical use, or other uses are disclosed equivalently, then it should be classified as invention information into the relevant sub group/sub groups of A61M 25/00.

If this technical feature appears to add a beneficial contribution to the documentation in A61B 17/00, A61B 18/00 or A61B 90/00, then classify it as additional information in the relevant sub group/sub groups of A61B 17/00, A61B 18/00 or A61B 90/00.

In doubt please classify in more sub classes, main groups and/or sub groups, rather than in too less.

{with a pressure sensor at the distal end}
Definition statement

This place covers:

Catheters with additional pressure sensors

Sensors at the distal end are only used for pressure measurement

The sensor is at the distal end, i.e. within the body during a measurement.

No details of pressure sensor or pressure measurement

The features "pressure sensor", "pressure measurement" are only additional features of the invention and not the invention itself

References
Limiting references

This place does not cover:

Pressure measurement catheters, details of pressure measurement, pressure sensors and other sensors

A61B 5/00

{having an additional lumen transmitting fluid pressure to the outside for measurement}
Definition statement

This place covers:

Catheters with additional pressure sensors

Sensors are only used for pressure measurement.

The sensor is at the proximal end or outside of the catheter.

No details of pressure sensor or pressure measurement.

In this subgroup the features "pressure sensor", "pressure measurement" are only additional features of the invention and not the invention itself

References
Limiting references

This place does not cover:

Pressure measurement catheters, details of pressure measurement, pressure sensors and other sensors

A61B 5/00

{having two or more concentrically arranged tubes for forming a concentric catheter system}
Definition statement

This place covers:

Catheter system, comprising concentric catheter tubes movable with respect to each other

Systems with two or more tubes/catheters within each other in a concentric way forming one entity

References
Limiting references

This place does not cover:

Catheters having telescopic features, interengaging nestable members movable in relation to one another

A61M 2025/0175

Systems with catheter and outer tubing

A61M 2025/0681

{Epidural catheters}
Definition statement

This place covers:

The use of catheters as epidural, peridural, peritoneal and spinal catheters; the terms "epidural, peridural, peritonal, spinal" trigger the classification into this subgroup.

References
Limiting references

This place does not cover:

Puncturing needles

A61B 17/3401

Informative references

Attention is drawn to the following places, which may be of interest for search:

For the use in the brain or cerebrum

A61M 2210/0693

For the use in the spinal column

A61M 2210/1003

{having visible markings on its surface, i.e. visible to the naked eye, for any purpose, e.g. insertion depth markers, rotational markers or identification of type}
Definition statement

This place covers:

Visible (optical) markers on catheters, tubes or guide wires.

References
Limiting references

This place does not cover:

Radio-opaque and ultrasound marker on catheters or medical tubes

A61M 25/0108

Magnetic marker on catheters or medical tubes

A61M 25/0127

Radio-opaque markers on guide wires

A61M 2025/09166

Visible markers which specifically belong to surgical instruments

A61B 90/39, A61B 2017/00796

Informative references

Attention is drawn to the following places, which may be of interest for search:

Optical identification means

A61M 2205/6063

{Making of catheters or other medical or surgical tubes}
Definition statement

This place covers:

  • Methods and processes of making and manufacturing of catheters and medical or surgical tubes
  • This subgroup covers as well apparatus for manufacturing, which are specifically used for producing catheters
References
Limiting references

This place does not cover:

Method of making a guide wire

A61M 2025/09108

Connections between catheter tubes and inflation tubes

A61M 25/1025

Method of making balloon catheters

A61M 25/1027

Making of surgical instruments

A61B 17/00

Making of surgical instruments for transferring non-mechanical forms of energy (specific features for such devices, e.g. electrodes, cryotips)

A61B 18/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices for applying a coating

B05C

Process for applying a coating

B05D

Cutting tools

B26B

For a single-step process, or a specific step in a multi-step process:

Injection moulding

B29C 45/00

Extrusion moulding

B29C 48/00

Blow moulding

B29C 49/00

Shaping by stretching, e.g. drawing though a die

B29C 55/22

Shaping of tube ends

B29C 57/00

Lining or sheathing

B29C 63/00

Joining

B29C 65/00

For a multi-step process:

Producing tubular articles

B29D 23/00

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code subgroup

All machines that are specifically used for performing these manufacturing processes should be classified here, including large machines. If they are not used specifically for manufacturing catheters, then please see the references in this definition.

General methods for manufacturing and apparatuses for performing such methods are classified in the classes regarding methods, e.g. class B21 (for metal products), B26 (for cutting), B29 (for plastic products). Methods for manufacturing, which are adapted to produce only a certain medical device (e.g. catheter, guidewire) will be classified in the class for the product, e.g. A61 (for medical products). Apparatus for manufacturing a medical device which belong to a certain method for manufacturing will be classified in the same subgroup as the method.

For example, a method and apparatus of manufacturing of a special shaped balloon for the sole use with a balloon catheter (balloon used only for a catheter) will be classified in A61M 25/1029 as invention information. Usually this document should also be considered for B29C 49/00 (blow moulding) in addition.

As another example, a method and apparatus for manufacturing a plastic tube including blow moulding which discloses only casually that catheters can be made with it, will be classified in the relevant subgroup of B29C 49/00 as invention information and will get a classification in A61M 25/1029 as additional information if this method/apparatus could be relevant for a future search in this field.

{Forming the tip of a catheter, e.g. bevelling process, join or taper}
Definition statement

This place covers:

Also apparatus for manufacturing, which are specifically used for forming the tip of a catheter.

References
Limiting references

This place does not cover:

Method of making balloon catheters

A61M 25/1027

Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheter characterised by the distal end

A61M 25/0067

Cutting tools

B26B

Injection moulding

B29C 45/00

Extrusion moulding

B29C 48/00

Blow moulding

B29C 49/00

Shaping of tube ends

B29C 57/00

Joining

B29C 65/00

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code subgroup of A61M 25/0067

{with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils}
Definition statement

This place covers:

Methods or processes of making or manufacturing of catheters or medical or surgical tubes, which have structures made of different materials incorporated into bulk material, e.g. through moulding, or in-between two coatings.

This subgroup covers also apparatus for manufacturing, which are specifically used for embedding structures into catheters.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters with embedded materials

A61M 25/005

Devices for applying a coating

B05C

Process for applying a coating

B05D

Injection moulding

B29C 45/00

Extrusion moulding

B29C 48/00

Blow moulding

B29C 49/00

Lining or sheathing

B29C 63/00

Producing tubular articles

B29D 23/00

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code subgroup A61M 25/005

{Weakening parts of a catheter tubing, e.g. by making cuts in the tube or reducing thickness of a layer at one point to adjust the flexibility}
Definition statement

This place covers:

This group covers as well apparatus for manufacturing, which are specifically used for weakening parts of catheter tubings.

References
Limiting references

This place does not cover:

Tip steering due to weakening outer material

A61M 25/0138

Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters with regions for increasing flexibility

A61M 25/0054

Cutting tools

B26B

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code subgroups of A61M 25/0054

{Connecting a tube to a hub}
Definition statement

This place covers:

This group covers as well apparatus for manufacturing, which are specifically used for connecting a catheter tube to a hub

References
Limiting references

This place does not cover:

Connections between catheter tubes and inflation tubes

A61M 25/1025

Informative references

Attention is drawn to the following places, which may be of interest for search:

Characterised by the hub

A61M 25/0097

Tube connectors; tube couplings

A61M 39/10

Joining

B29C 65/00

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code subgroup A61M 25/0097

{Making lateral openings in a catheter tube, e.g. holes, slits, ports, piercings of guidewire ports; Methods for processing the holes, e.g. smoothing the edges}
Definition statement

This place covers:

This group covers as well apparatus for manufacturing, which are specifically used to make lateral openings in a catheter tube

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Side holes

A61M 25/007

Cutting tools

B26B

{specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
Definition statement

This place covers:

  • All catheters which stay in the body for a prolonged period of time and are specially adapted therefore, e.g. antimicrobial coatings, surface properties, drainage
  • Urinary catheters (used within the bladder, urethra, etc.) only for long-term use
  • All catheters which stay in the body for a prolonged period of time and are therefore specially adapted to reduce the risks of a long term treatment (e.g. inflammation, clotting), e.g. by coatings, surface properties
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Drainage catheters

A61M 27/00

Closure means for urethra

A61F 2/0004

Devices worn by the patient for reception of urine

A61F 5/44

{Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement}
Definition statement

This place covers:

  • Cleaning the catheter from the inside and/or outside.
  • Cleaning with or without solutions.
  • Cleaning with or without mechanical means, e.g. brush.
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Cleaning pipes or tubes,external surfaces

B08B 9/023

Cleaning pipes or tubes, internal surfaces

B08B 9/027

Special rules of classification

Give A61M 25/00 in addition to the Indexing Code subgroup A61M 2025/0019, if only a process or an apparatus for cleaning a catheter or medical tube is disclosed.

Otherwise give the most relevant classification symbol, e.g. cleaning a balloon catheter with a special shape: A61M 25/1002 and A61M 2025/0019.

{Packages specially adapted therefor (combined with means for introducing catheters, e.g. dispensers, A61M 25/0113); catheter kit packages (for surgical articles A61B 50/30)}
Definition statement

This place covers:

Packages only for catheters, medical tubes and guide wires

References
Limiting references

This place does not cover:

Packages specially adapted for devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way

A61M 5/002

Aseptic insertion devices

A61M 25/0111

Catheter dispensers

A61M 25/0113

Packages or dispensers for (surgical) needles or sutures

A61B 17/06114

Casings for packaging, protecting or dispensing (surgical) articles

A61B 50/30

Packages or dispensers for prostheses or other implants

A61F 2/0095

Informative references

Attention is drawn to the following places, which may be of interest for search:

Containers, packaging elements or packages specially adapted for particular articles or materials

B08B 9/02

Containers, packaging elements or packages for contents presenting particular transport or storage problems

B65D 81/00

Containers or packaging with special means for dispensing contents (i.e. to take things out of a package)

B65D 83/00

Containers, packaging elements or packages specially adapted for particular articles or materials

B65D 85/00

{characterised by the form of the tubing (A61M 25/0054 takes precedence)}
Definition statement

This place covers:

Tubings with specific shapes of the outer tubing or the inner lumen, e.g. rectangular outer tubing

References
Limiting references

This place does not cover:

With regions for increasing flexibility (takes precedence)

A61M 25/0054

{Expandable catheters or sheaths}
Definition statement

This place covers:

Catheters, medical tubes or sheaths which are expandable over their entire or at least sufficient length (not tip only)

References
Limiting references

This place does not cover:

For holding in lumen

A61M 25/04

Balloon catheter

A61M 25/10

Dilators

A61M 29/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Guide tubes

A61M 25/0662

Trocars; Puncturing needles, details of tips or shafts

A61B 17/3421

{having a collapsible lumen}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Trocars; Puncturing needles, details of tips or shaft

A61B 17/3421

{Multi-lumen catheters with stationary elements (catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M 2025/0681; catheters comprising telescoping coaxial elements A61M 2025/0175)}
Definition statement

This place covers:

  • Tubes defining the multi-lumens or the multi-lumens themselves do not move relative to each other
  • Aspiration and irrigation catheters should be classified into this group as well
  • Only multi-lumen catheters
References
Limiting references

This place does not cover:

Concentric catheters

A61M 2025/0004

Catheter tip with multiple lumens

A61M 25/0071

Balloon catheters

A61M 25/10

Informative references

Attention is drawn to the following places, which may be of interest for search:

Drainage tubes; Aspiration tips

A61M 1/008

Catheters for dialysis

A61M 1/285

Interfaces of extra-corporeal blood circuits

A61M 1/3653

{characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves (catheter hubs A61M 25/0097)}
Definition statement

This place covers:

  • Multilumen catheters with features relating to the proximal part of the lumens
  • Only multi-lumen catheters
References
Limiting references

This place does not cover:

characterised by the hub

A61M 25/0097

{characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports (catheter shaft surface irregularities A61M 2025/006)}
Definition statement

This place covers:

  • Multilumen catheters with features relating to the middle part of the lumens
  • Only multi-lumen catheters
References
Limiting references

This place does not cover:

Having a special surface topography or special surface properties

A61M 2025/006

Side holes at distal tip

A61M 25/007

Balloon catheter

A61M 25/10

{characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves (catheter tips A61M 25/0067)}
Definition statement

This place covers:

  • Multilumen catheters with features relating to the distal part of the lumens
  • Only multi-lumen catheters
References
Limiting references

This place does not cover:

Distal tip features generally

A61M 25/0067

{characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters for dialysis

A61M 1/285

Extra-corporeal blood circuits

A61M 1/3621

{pre-formed, e.g. specially adapted to fit with the anatomy of body channels (urethral catheters A61F 2/04)}
References
Limiting references

This place does not cover:

Tip steering with pre-shaped mechanisms

A61M 25/0152

Pre-shaped guide wires

A61M 25/09

Pre-shaped drainage appliances, for use in the urethral or ureteral tract

A61M 27/008

Implantable prosthesis in hollow or tubular parts of organs

A61F 2/04

{Microcatheters, cannula or the like having outside diameters around 1 mm or less}
Definition statement

This place covers:

Classify documents into this group if the outer diameter of a catheter is 1 mm or less or the word "microcatheters", etc. is used.

{multi-layered, e.g. coated (coating materials A61L 29/08)}
Definition statement

This place covers:

Multi-layer structures of catheters made e.g. by coating tubes, by coextruding tubes, by laminating tubes

References
Limiting references

This place does not cover:

Coating materials

A61L 29/08

{Coatings for improving slidability}
References
Limiting references

This place does not cover:

Coating materials

A61L 29/08

{with embedded materials for reinforcement, e.g. wires, coils, braids}
Definition statement

This place covers:

Features to reinforce catheter tubes.

References
Limiting references

This place does not cover:

Methods of making catheters with embedded structures

A61M 25/0012

Improve flexibility of catheters

A61M 25/0054

Tip steering due to inner reinforcing means

A61M 25/0144

{made from fenestrated or weakened tubing layer}
Definition statement

This place covers:

Catheter tubes reinforced by using an embedded fenestrated additional tube

References
Limiting references

This place does not cover:

Reinforcement by embedded coils or braids

A61M 25/005

{with regions for increasing flexibility}
References
Limiting references

This place does not cover:

Method of making catheters by weakening parts of a catheter tubing, e.g. by making cuts in the tube or reducing thickness of a layer at one point to adjust the flexibility

A61M 25/0013

Tip steering due to weakening outer material

A61M 25/0138

Tip steering due to material with different mechanical properties

A61M 25/0141

Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters having a soft tip

A61M 2025/0081

{provided with an antibacterial agent, e.g. by coating, residing in the polymer matrix or releasing an agent out of a reservoir}
References
Limiting references

This place does not cover:

Drug delivery coatings

A61M 2025/0057

Informative references

Attention is drawn to the following places, which may be of interest for search:

Biological active materials

A61L 29/16

{Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings}
Definition statement

This place covers:

Catheters using unconventional ways (i.e. other than delivery through large holes) for medicament delivery, e.g. through porous walls, hydrogel coatings with incorporated medicaments, through coils.

References
Limiting references

This place does not cover:

Antibacterial coatings

A61M 2025/0056

Side openings

A61M 25/007

Informative references

Attention is drawn to the following places, which may be of interest for search:

Biological active materials

A61L 29/16

{having an electroactive polymer material, e.g. for steering purposes, for control of flexibility, for locking, for opening or closing}
References
Limiting references

This place does not cover:

Tip steering

A61M 25/0158

Informative references

Attention is drawn to the following places, which may be of interest for search:

Materials for catheters characterised by their function

A61L 29/14

{having a special surface topography or special surface properties, e.g. roughened or knurled surface}
Definition statement

This place covers:

Catheters with an unusual surface topography (i.e. other than standard smooth surfaces) for solving technical problems, e.g. roughened surface for increasing friction between tissue and catheter.

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes with grooved shaft

A61B 1/00073

Endoscopes with roughened shaft

A61B 1/00075

{having features to improve the sliding of one part within another by using lubricants or surfaces with low friction (coatings A61M 2025/0046)}
Definition statement

This place covers:

Catheters which have specific features to reduce frictions, e.g. roughened surface, lubricants, in use with a second entity, e.g. guidewire.

References
Limiting references

This place does not cover:

{having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body}
Definition statement

This place covers:

Means for changing the mechanical properties, that are inserted while the catheter is already in place within the human body

References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters or medical tubes with inner stiffening members, which will be inserted into the catheter only for insertion or introduction purposes, i.e. they will be inserted while the catheter is introduced into the body and removed after insertion of the catheter into the body.

A61M 25/0102

Endoscopes with stiffening means

A61B 1/00078

{characterised by the distal end, e.g. tips (A61M 25/0054, A61M 25/04 take precedence; balloon catheters A61M 25/10)}
References
Limiting references

This place does not cover:

With regions for increasing flexibility (takes precedence)

A61M 25/0054

Tip steering

A61M 25/0133

Holding in the body (takes precedence)

A61M 25/04

Balloon catheters

A61M 25/10

Surgical instruments for transferring non-mechanical energy to the body (ablation)

A61B 18/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Distal tips of endoscopes

A61B 1/0008

Surgical instruments for scraping out cavities of body organs

A61B 17/22

{Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure}
Definition statement

This place covers:

  • Tip structure can be internal (i.e. inside the lumen) or external (i.e. outside the lumen onto the catheter shaft)
  • Curved tip refers to an angled distal tip with respect to the rest of the catheter shaft,
  • Tips specially adapted to fit with the anatomy of body channels should not be classified here
  • Atraumatic tips which are atraumatic because of their shape (and not because of material choice).
References
Limiting references

This place does not cover:

Pre-formed, e.g. specially adapted to fit with the anatomy of body channels

A61M 25/0041

Special rules of classification

Check whether atraumatic tip should also be classified in A61M 25/008 and/or A61M 2025/0081.

{Tip not integral with tube}
Definition statement

This place covers:

Separate tips either of the same material as the proximal tube and attached by e.g. gluing, welding or of a different material than the proximal tube

{Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked}
References
Limiting references

This place does not cover:

Catheter with injection needles

A61M 25/0084

Informative references

Attention is drawn to the following places, which may be of interest for search:

Needles for infusion

A61M 5/158

Side holes for perfusion

A61M 2025/1095

Side holes for perfusion

A61M 2025/1097

{Multiple separate lumens (multiple separate lumens throughout the catheter A61M 25/0026)}
Definition statement

This place covers:

When main catheter lumens split into several lumens only at the distal tip of the catheter.

References
Limiting references

This place does not cover:

Multi-lumen catheters with stationary elements

A61M 25/0026

{Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable}
References
Limiting references

This place does not cover:

Tools at the distal tip

A61M 25/0082

Expandable structures for holding within the body

A61M 25/04

Balloon catheters

A61M 25/10

{Valve means}
Definition statement

This place covers:

Valves at the distal tip

References
Limiting references

This place does not cover:

Cerebrospinal drainage, e.g. valves

A61M 27/006

Informative references

Attention is drawn to the following places, which may be of interest for search:

Valves (if the disclosure of the document emphasises the details of a valve)

A61M 39/22

{Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter}
Definition statement

This place covers:

Only the sealing of a catheter or tube lumen with a separate device

References
Limiting references

This place does not cover:

Catheter with collapsible lumen

A61M 2025/0025

Occlusion of natural lumens

A61M 2025/1052

Informative references

Attention is drawn to the following places, which may be of interest for search:

Guide wire having a balloon

A61M 2025/09008

{Soft tip}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Catheters having regions for increasing flexibility

A61M 25/0054

{Catheter tip comprising a tool}
Definition statement

This place covers:

  • Tools at the distal tip of a catheter
  • A tool is a device which interacts with the surrounding tissue, i.e. it has an impact on the patient
  • Tools can be internal (i.e. inside the lumen) or external (i.e. outside the lumen onto the catheter shaft) but linked to the catheter
References
Limiting references

This place does not cover:

Pre-formed, e.g. specially adapted to fit with the anatomy of body channels

A61M 25/0041

{being one or more injection needles}
Definition statement

This place covers:

  • Catheters with needles for drug delivery into the surrounding tissue
  • Catheters with needles for holding and for drug delivery
  • If the details of the construction of a catheter with a needle appears to be the "invention" (the technical feature is the "invention"), then it should be classified here
References
Limiting references

This place does not cover:

Drug delivery through needles without catheter

A61M 5/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopic needles

A61B 17/3478

Special rules of classification

Please propose the following classes as well:

Solid needle for holding A61M 2025/0095

Holding in a body lumen A61M 25/04

If the medical treatment of a body with such a catheter appears to be the "invention" (the use is the "invention") A61B 17/3478

If no catheter is disclosed, only drug delivery A61M 5/00

{the needles having bent tips, i.e. the needle distal tips are angled in relation to the longitudinal axis of the catheter}
Definition statement

This place covers:

A catheter with multiple needles at its distal end, The needles are protruding along the longitudinal axis of the catheter. The tip of the needles themselves are bend out of plane and are therefore no longer parallel to the longitudinal axis of the catheter

{the needle having a bent tip, i.e. the needle distal tip is angled in relation to the longitudinal axis of the catheter}
Definition statement

This place covers:

A catheter with a single needle at its distal end, The needle is protruding along the longitudinal axis of the catheter. The tip of the needle itself is bend out of plane and is therefore not any longer parallel to the longitudinal axis of the catheter

{wherein at least one needle is a microneedle}
References
Limiting references

This place does not cover:

Details of microneedles

A61M 37/0015

{being one or more needles protruding from the distal tip and which are not used for injection nor for electro-simulation, e.g. for fixation purposes}
References
Limiting references

This place does not cover:

Introducing instruments through an endoscopic needle

A61B 17/3478

Electrodes for stimulation

A61N 1/04

Informative references

Attention is drawn to the following places, which may be of interest for search:

Holding in a body lumen

A61M 25/04

{being laterally outward extensions or tools, e.g. hooks or fibres}
References
Limiting references

This place does not cover:

Catheters with injection needles

A61M 25/0084

Catheters with solid needles e.g. for holding

A61M 2025/0095

Electrodes

A61N 1/04

Informative references

Attention is drawn to the following places, which may be of interest for search:

Surgical instruments for scraping out cavities of body organs

A61B 17/22

{characterised by the hub (connectors A61M 39/10)}
Definition statement

This place covers:

  • Hubs for introducing fluid or other devices
  • Handles without steering purpose
References
Limiting references

This place does not cover:

Method of connecting a hub to a tubing

A61M 25/0014

Handles for tip steering

A61M 25/0136

Informative references

Attention is drawn to the following places, which may be of interest for search:

Tube connectors; tube couplings

A61M 39/10

Introducing, guiding, advancing, emplacing or holding catheters (A61M 25/10 takes precedence)
Definition statement

This place covers:

  • Dynamic features of catheters and medical tubes, e.g. advancing, guiding, steering
  • Holding devices for catheters or medical tubes
  • Guide tubes and guide needles
  • Guide wires
References
Limiting references

This place does not cover:

Balloon catheter

A61M 25/10

{Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod}
Definition statement

This place covers:

Catheters or medical tubes with inner stiffening members, which will be inserted into the catheter only for insertion or introduction purposes, i.e. they will be inserted while the catheter is introduced into the body and removed after insertion of the catheter into the body.

References
Limiting references

This place does not cover:

Means for changing the mechanical properties, that are inserted while the catheter is already in place within the human body

A61M 2025/0063

{Steering means as part of the catheter or advancing means; Markers for positioning (systems for detection of markers A61B)}
Definition statement

This place covers:

  • Steering means for steering the whole catheter, which are part of a catheter and not a separate device
  • Markers, which are located on the catheter or medical tube
  • If the markers are interesting for the identification of catheters or medical tubes (not marker specially adapted for surgical instruments)
References
Limiting references

This place does not cover:

Tip steering

A61M 25/0133

Radio-opaque markers on guide wires

A61M 2025/09166

Systems for detection of markers, without using radiation or US

A61B 5/06

Systems for detection of markers, using radiation

A61B 6/12

Systems for detection of markers, without using US

A61B 8/0833

Surgical robots for guiding instruments in the body; if the control device of this robots is outside the body of the patient

A61B 34/30

Markers, which specifically belong to surgical instruments

A61B 90/39

Informative references

Attention is drawn to the following places, which may be of interest for search:

Radio-opaque indicia

A61M 2205/32

Endoscopes, for steering device is disclosed

A61B 1/005

Special rules of classification

All markers should additionally be sent to A61B 90/39

Steering mechanisms of endoscopes (steering of the whole endoscope body) should be classified as the following:

If the technical feature, which appears to be the invention, is disclosed in a general way, i.e. not limited only to the use with an endoscope, then it should be classified as invention information in A61M 25/0105.

If the technical feature, which appears to be the invention, is limited only to the use with an endoscope, but it appears to add a beneficial contribution to the documentation in A61M 25/0105, then classify it as additional information in A61M 25/0105.

{using radio-opaque or ultrasound markers}
Definition statement

This place covers:

If the markers are interesting for the identification of catheters or medical tubes (not marker specially adapted for surgical instruments)

References
Limiting references

This place does not cover:

Ultrasound markers, which specifically belong to surgical instruments

A61B 2090/3925

{Aseptic insertion devices}
References
Limiting references

This place does not cover:

Tracheal tubes combined with catheters

A61M 16/0463

{Mechanical advancing means, e.g. catheter dispensers}
Definition statement

This place covers:

Devices which are adapted mechanically for moving a catheter in respect to the patient, e.g. catheter dispenser, mechanical catheter insertion devices

References
Limiting references

This place does not cover:

Guide wire insertion devices

A61M 25/09041

{self-propelled, e.g. autonomous robots (A61M 25/0122 takes precedence)}
Definition statement

This place covers:

Self-propelled devices, where the control of such devices is within the device and not outside the patient

References
Limiting references

This place does not cover:

Advancing means having fluid drives by external fluid in an open fluid circuit (takes precedence)

A61M 25/0122

Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes using self-propulsion, e.g. capsule endoscopes, if a camera is part of the device

A61B 1/00156

Micromanipulators

A61B 34/72

{with fluid drive by external fluid in an open fluid circuit}
References
Limiting references

This place does not cover:

Bodily fluids

A61M 25/0125

Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes using self-propulsion, e.g. capsule endoscopes

A61B 1/00156

{Catheters carried by the bloodstream, e.g. with parachutes; Balloon catheters specially designed for this purpose}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes using self-propulsion, e.g. capsule endoscopes

A61B 1/00156

{Magnetic means; Magnetic markers}
Definition statement

This place covers:

Magnetic means for guiding a catheter through the body, e.g. system which uses a catheter with a magnet, not marker, and an outer magnetic field for moving the catheter through the body of a patient.

Magnetic markers, which are located on the catheter or medical tube.

References
Limiting references

This place does not cover:

Systems for detection of markers, without using radiation or US

A61B 5/06

Magnetic markers, which specifically belong to surgical instruments

A61B 90/39, A61B 2090/3954

Special rules of classification

Magnetic guidance means and markers are classified here. Detection systems are classified in A61B. The combination of position detection and magnetic guidance means will be classified either here if the invention lies within the guidance, or in A61B if the invention lies in detection, or both here and in A61B if the inventions covers both aspects.

{Tip steering devices}
References
Limiting references

This place does not cover:

Steering of the whole catheter

A61M 25/0105

Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes

A61B 1/005

Ablation catheters

A61B 18/1492

Special rules of classification

Steering mechanisms of endoscopes (steering of the endoscope tip only) should be classified as the following:

If the technical feature, which appears to be the invention, is disclosed in a general way, i.e. not limited only to the use with an endoscope, then it should be classified as invention information in A61M 25/0133 and its sub groups.

If the technical feature, which appears to be the invention, is limited only to the use with an endoscope, but it appears to add a beneficial contribution to the documentation in A61M 25/0133 and its sub groups, then classify it as additional information in A61M 25/0133 and its sub groups.

{having flexible regions as a result of weakened outer material, e.g. slots, slits, cuts, joints or coils}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Regions for increasing flexibility

A61M 25/0054

{having flexible regions as a result of using materials with different mechanical properties}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Regions for increasing flexibility

A61M 25/0054

{having flexible regions as a result of inner reinforcement means, e.g. struts or rods}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Embedded materials

A61M 25/005

{with pre-shaped mechanisms, e.g. pre-shaped stylets or pre-shaped outer tubes}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Pre-formed catheters

A61M 25/0041

{having telescopic features, interengaging nestable members movable in relations to one another}
Definition statement

This place covers:

Catheters or medical tubes which can adapt their length thanks to a telescopic structure

References
Limiting references

This place does not cover:

Concentric catheters; Systems with two or more tubes/catheters within each other in a concentric way

A61M 2025/0004

Systems with catheter and outer tubing

A61M 2025/0681

{having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes}
Definition statement

This place covers:

External means, e.g. hooks, loops, for receiving wire shaped objects, except standard rapid exchange or monorail catheters with standard guidewire guiding means, e.g. short tubes

References
Limiting references

This place does not cover:

Rapid exchange or monorail catheters with standard guidewire guiding means

A61M 2025/0183

Locking guide wires

A61M 2025/09125

Special rules of classification

Rapid exchange (rx) or monorail catheters with non standard guidewire guiding means, e.g. hooks, loops, should be classified here and in A61M 2025/0183

{Rapid exchange or monorail catheters}
Definition statement

This place covers:

Monorail or rapid exchange (rx) catheters have in contrast to the over the wire catheters only a short guidewire lumen which is parallel over a short distance to the catheter tube.

References
Limiting references

This place does not cover:

Balloon catheters having a guide wire lumens outside the main shaft, i.e. the guide wire lumen is within or on the surface of the balloon

A61M 2025/1056

Informative references

Attention is drawn to the following places, which may be of interest for search:

Balloon catheters

A61M 25/10

Rapid exchange or monorail catheters as well in

A61F 2/82, A61N, A61B 17/00

Special rules of classification

Rapid exchange (rx) or monorail catheters with non standard guidewire guiding means, e.g. hooks, loops, should be classified here and in A61M 2025/018

{Tunnelling catheters}
Definition statement

This place covers:

Catheters which have a distal portion that enters the human body, leaving it and entering it again to create a fixation outside the human body

References
Limiting references

This place does not cover:

For creating an artificial passage within the body

A61M 2025/0197

{for creating an artificial passage within the body, e.g. in order to go around occlusions (for fixation outside the body A61M 25/0194)}
References
Limiting references

This place does not cover:

For fixation outside the body

A61M 25/0194

Holding devices, e.g. on the body
Definition statement

This place covers:

Holding of catheters, medical tubes and guide wires

{specifically adapted for the mouth}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

{specifically adapted for the nose}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

{specifically adapted for attaching to a body wall by means which are on both sides of the wall, e.g. for attaching to an abdominal wall}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Fixing Trocars

A61B 2017/348

Gastrostomy feeding tubes

A61J 15/0015

{using pads, patches, tapes or the like}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Adhesive plasters

A61F 13/02

{Catheter, guide wire or the like with means for holding, centering, anchoring or frictionally engaging the device within an artificial lumen, e.g. tube (natural lumen, e.g. vessels A61M 25/04)}
References
Limiting references

This place does not cover:

Holding within a natural lumen, e.g. vessel

A61M 25/04

in the body, e.g. expansible {(A61M 25/10, A61M 16/0488 take precedence)}
Definition statement

This place covers:

  • Expandable devices for holding (not balloons)
  • Other mechanisms
References
Limiting references

This place does not cover:

Tracheal tubes, means for securing the tubes

A61M 16/0488

Balloon catheters

A61M 25/10

Body-piercing guide needles or the like
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Needles

A61M 5/158

Needles

A61M 5/32

Trocars; Puncturing needles (usually for introducing bigger sized instruments or tubes)

A61B 17/34

{"Over-the-needle" catheter assemblies, e.g. I.V. catheters}
Definition statement

This place covers:

Systems of a body piercing needle and catheter, catheter will be delivered over the needle for introduction into the body.

References
Limiting references

This place does not cover:

Guide needles, where the catheter will be delivered within the needle for introduction into the body

A61M 25/065

{Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders}
Definition statement

This place covers:

Needle protection devices, only if a catheter is part of the device

References
Limiting references

This place does not cover:

Needle protection devices for assemblies without catheters

A61M 5/321

{having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Retractable needles

A61M 5/322

{Guide needles}
Definition statement

This place covers:

  • Needles for the introduction of catheters, medical tubes or guide wires into the body; catheter will be delivered within the needle for introduction into the body
  • Catheters with needle-shaped tips
References
Limiting references

This place does not cover:

"Over-the needle" catheter assemblies

A61M 25/0606

Informative references

Attention is drawn to the following places, which may be of interest for search:

Body piercing needles (usually for introducing bigger sized instruments or tubes)

A61B 17/3415

{Guide tubes}
Definition statement

This place covers:

  • Guide tubes are larger than guide needles
  • Guide tubes are usually made out of plastics
  • Guide tubes usually do not have a piercing tip
References
Limiting references

This place does not cover:

"Over-the-needle" catheters

A61M 25/0606

Guide needles

A61M 25/065

Informative references

Attention is drawn to the following places, which may be of interest for search:

Guide tubes for endoscopes

A61B 1/00154

Guiding arrangements for endoscopes (this group is less relevant for the search for guide tubes; a search in A61B 1/01 should only take place if nothing could be found!)

A61B 1/01

{Introducing-sheath slitters}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Apparatus for cutting tubes longitudinally

B26D 3/001

{having means for atraumatic insertion in the body or protection of the tip of the sheath during insertion, e.g. special designs of dilators, needles or sheaths}
Special rules of classification

Documents should get a classification in A61M 29/00 as well

{Flashback chambers}
Definition statement

This place covers:

A flashback chamber is a small chamber connected to a needle in a catheter assembly, which will be filled with blood if a vessel is punctured for indicating the correct insertion of the assembly.

References
Limiting references

This place does not cover:

Devices for taking blood samples

A61B 5/15

Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices for taking blood samples provided with indicating means

A61B 5/1422

{with mandrils}
Definition statement

This place covers:

Guide wire comprising a core wire and an additional wire, which is connected to the core wire or proceed parallel to the core wire, e.g. for different mechanical properties.

{with sliding mandrils}
Definition statement

This place covers:

Guide wire with a movable additional wire, not core wire, within the guide wire, e.g. for steering.

{Mechanisms for insertion of guide wires}
References
Limiting references

This place does not cover:

Mechanisms for the insertion of catheters

A61M 25/0113

{extendable, e.g. mechanisms for extension}
Definition statement

This place covers:

Guide wires with variable length

{Basic structures of guide wires (not used)}
Special rules of classification

This group should not be used and therefore kept empty!

{Methods for making a guide wire}
Definition statement

This place covers:

  • Methods and processes of making and manufacturing of guidewires
  • This group covers as well apparatus for manufacturing, which are specifically used for producing guidewires
References
Limiting references

This place does not cover:

Methods of making catheters

A61M 25/0009

Methods of making balloon catheters

A61M 25/1027

Informative references

Attention is drawn to the following places, which may be of interest for search:

Drawing wires

B21C 1/02

Specifics of dies

B21C 3/02

Manufacturing of fine wires

B21C 37/047

Coiling wire

B21F 3/00

Twisting wire

B21F 7/00

Cutting wire

B21F 11/00

Connecting wire with wire

B21F 15/02

Metallic coating of wire

B21F 19/00

Heat treatment

C21D 1/00

Modifying physical properties of steel by cold working

C21D 7/02

{Device for locking a guide wire in a fixed position with respect to the catheter or the human body}
Definition statement

This place covers:

Locks within and/or outside a catheter or human body

{having radio-opaque features}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Radio-opaque markers on catheters

A61M 25/0108

Balloon catheters ({A61M 25/0125 takes precedence; embolectomy A61B 17/22032; retractors A61B 17/02;} inflatable balloons for placing stents or stent-grafts A61F 2/958 {; stomach balloons for treatment of obesity A61F 5/0003; oesophagal tubes A61J 15/00})
Definition statement

This place covers:

Mechanical and structural features of balloon catheters and balloons for catheters.

Methods for making balloon catheters.

References
Limiting references

This place does not cover:

Catheters carried by the bloodstream, e.g. with parachutes; Balloon catheters specially designed for this purpose (takes precedence)

A61M 25/0125

Retractor

A61B 17/02

Embolectomy

A61B 17/22032

Stomach balloons for treatment of obesity

A61F 5/0003

Oesophagal tubes

A61J 15/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Temporary occlusion for surgery

A61B 17/1204

Surgical occlusion balloons

A61B 17/12136

Scraping balloon

A61B 2017/22051

Cutting balloons

A61B 17/320725; A61B 17/32075

Balloons for stent delivery

A61F 2/958

Balloons for radiation therapy

A61N 2005/1003

{characterised by balloon shape (A61M 25/1006, A61M 25/1009 take precedence)}
References
Limiting references

This place does not cover:

Balloons formed between concentric tubes

A61M 25/1006

Balloons anchored to a disk or plate

A61M 25/1009

{Multiple balloon catheters}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Occlusion balloons

A61M 2025/1052

Surgical occlusion balloons

A61B 17/12136

{Balloon inflating or inflation-control devices}
Definition statement

This place covers:

Balloon inflating or inflation control devices and balloon deflation and deflation control devices

References
Limiting references

This place does not cover:

Intra-arterial balloon pumps

A61M 1/1072

Systems for priming balloon catheters

A61M 2025/1077

{Making of balloon catheters}
Definition statement

This place covers:

This group covers as well apparatus for manufacturing, which are specifically used for producing balloon catheters

References
Limiting references

This place does not cover:

Making of catheters

A61M 25/0009

Method of making a guide wire

A61M 2025/09108

Making of surgical instruments

A61B 17/00

Making of surgical instruments for transferring non-mechanical forms of energy (specific features for such devices, e.g. electrodes, cryotips)

A61B 18/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Devices for applying a coating

B05C

Process for applying a coating

B05D

Cutting tools

B26B

For a single-step process, or a specific step in a multi-step process:

Injection moulding

B29C 45/00

Extrusion moulding

B29C 48/00

Blow moulding

B29C 49/00

Shaping by stretching, e.g. drawing though a die

B29C 55/22

Shaping of tube ends

B29C 57/00

Lining or sheathing

B29C 63/00

Joining (please contact the gérant in this field if a search must be done here)

B29C 65/00

For a multi-step process:

Producing tubular articles

B29D 23/00

Special rules of classification

If a process leads to an interesting product, classify as well in the relevant Indexing Code group

{Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Cutting balloons

A61B 17/320725, A61B 17/32075

Devices for applying a coating

B05C

Process for applying a coating

B05D

{Joining of shaft and balloon}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

{Making parts for balloon catheter systems, e.g. shafts or distal ends (A61M 25/1029 takes precedence)}
Definition statement

This place covers:

Methods for making parts of balloon catheters, except balloons.

This group covers as well apparatus for manufacturing, which are specifically used for producing parts of balloon catheters, except of balloons

References
Limiting references

This place does not cover:

Production methods of balloon member

A61M 25/1029

{used for angioplasty}
Definition statement

This place covers:

Balloon catheters, which are used for angioplasty (PTA, PTCA)

References
Limiting references

This place does not cover:

Expandable dilators (e.g. balloons, struts) not used for angioplasty

A61M 29/02

Special rules of classification

Classify balloon dilators for angioplasty as well in IPC A61M 29/02

{with special features or adapted for special applications (not used)}
Special rules of classification

This group should not be used and therefore kept empty!

{for treating bifurcations, e.g. balloons in y-configuration, separate balloons or special features of the catheter for treating bifurcations}
Definition statement

This place covers:

  • Balloon catheters for treating bifurcations
  • Other means for treating bifurcations
{for temporarily occluding a vessel for isolating a sector}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Temporary occlusion for surgery

A61B 17/1204

Surgical occlusion balloons

A61B 17/12136

{having detachable or disposable balloons}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Stomach balloons for treatment of obesity

A61F 5/0003

{having radio-opaque markers in the region of the balloon}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Radio-opaque markers on catheters

A61M 25/0108

Radio-opaque markers on guide wires

A61M 2025/09166

Radio-opaque markers

A61B 90/39

{having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Sheaths for balloon length adjustment

A61M 2025/1068

Stent covering sheaths

A61F 2/962

{having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Scraping balloon

A61B 2017/22051

Cutting balloons

A61B 17/320725, A61B 17/32075

{having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Scraping balloon

A61B 2017/22051

Cutting balloons

A61B 17/320725, A61B 17/32075

Drainage appliances for wounds or the like, {i.e. wound drains, implanted drains} (implements for holding wounds open A61B 17/02; {middle ear drainage A61F 11/002; other drainage devices A61M 1/00})
Definition statement

This place covers:

  • Wound drainage tubes.
  • Systems for temporarily by-passing an vessel area with at least a part of circuit outside the body, e.g. for performing a surgical treatment in the by-passed area.
References
Limiting references

This place does not cover:

Wound drainage systems (with negative pressure or suction)

A61M 1/0088

Implements for holding wounds open

A61B 17/02

Middle ear drainage

A61F 11/002

Informative references

Attention is drawn to the following places, which may be of interest for search:

Multi-lumen catheters

A61M 25/0026

Valve means for lumen inflow

A61M 2025/0078

Special rules of classification

The term "wound" covers all injuries of the skin which originate from the impact of outer forces to the body, e.g. during a surgery, during an accidents.

{Implant devices for drainage of body fluids from one part of the body to another (intraocular A61F 9/00781; middle ear A61F 11/002)}
Definition statement

This place covers:

Implantable drainage tubes, e.g. shunts

References
Limiting references

This place does not cover:

Anastomosis

A61B 17/11

Intraocular drainage

A61F 9/00781

{Cerebrospinal drainage; Accessories therefor, e.g. valves}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Subcutaneous access sites for injecting or removing fluids

A61M 39/0208

{pre-shaped, for use in the urethral or ureteral tract}
Definition statement

This place covers:

Urethral or ureteral pre-shaped stents for draining

Dilators with or without means for introducing media, e.g. remedies (instruments for performing visual medical inspections of cavities or tubes of the body A61B 1/00)
Definition statement

This place covers:

Dilators, which do not change their shapes

References
Limiting references

This place does not cover:

Balloon dilators used for angioplasty

A61M 25/104

Expandable dilators, e.g. balloons not used for angioplasty, struts

A61M 29/02

Dilators made of swellable material {(balloon catheters for angioplasty A61M 25/104)}
Definition statement

This place covers:

Expandable dilators, e.g. balloons not used for angioplasty, struts.

Devices for introducing or retaining media, e.g. remedies, in cavities of the body (A61M 25/00 takes precedence {; introducing or retaining ophthalmic products into the ocular cavities A61F 9/0008})
Definition statement

This place covers:

Introducing or retaining medias in natural cavities, e.g. nose, anus, ear, vagina.

References
Limiting references

This place does not cover:

Introducing or retaining medias in vessels

A61M 25/00

Introducing or retaining ophthalmic products into the ocular cavities

A61F 9/0008

Injector for tampons

A61F 13/20

Tablets, pills

A61J 3/00

Feeding devices

A61J 15/0015

{Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time (artificial gland structures or devices A61F 2/022; intra-uterine contraceptive devices A61F 6/14; tampons for introducing into the vagina A61F 13/20, A61L 15/00; suppositories or bougies for intra-vaginal or intra-uterine application A61K 9/02; physical forms of medicinal preparations for sustained or differential drug release A61K 9/20, A61K 9/50)}
Definition statement

This place covers:

  • Tampons with drug delivery.
  • Electronic pills with drug delivery.
  • Other devices for releasing a drug in a natural cavity.
References
Limiting references

This place does not cover:

Artificial gland structures or devices

A61F 2/022

Intra-uterine contraceptive devices

A61F 6/14

Suppositories or bougies for intra-vaginal or intra-uterine application

A61K 9/02

Medicinal preparations for sustained or differential drug release

A61K 9/20, A61K 9/50

Informative references

Attention is drawn to the following places, which may be of interest for search:

Endoscopes using self-propulsion, e.g. capsule endoscopes

A61B 1/00156

Electronic pills

A61B 5/073

Devices for applying, {e.g. spreading}, media, e.g. remedies, on the human body (devices for handling toilet or cosmetic substances A45D; absorbent pads, e.g. swabs, A61F 13/15); {Introducing media, e.g. remedies, into the body by diffusion through the skin (using salt baths A61H 33/04)}
Definition statement

This place covers:

  • Devices only for applying drugs onto the body.
  • Booths for spraying tanning lotions onto the body.
References
Limiting references

This place does not cover:

Devices for handling toilet or cosmetic substances

A45D

Absorbent pads, e.g. swabs

A61F 13/15

Salt baths

A61H 33/04

Baths

A61H 35/00

Informative references

Attention is drawn to the following places, which may be of interest for search:

Transdermal patches with drugs

A61K 9/7023

Apparatus for tanning the skin

A61N 5/0614

Spraying apparatus

B05B

Coin operated apparatus for spraying fluids

G07F 13/08

{Hand-held applicator instruments having media dispensing or spreading means (apparatus for iontophoresis A61N 1/30; hand tools for applying fluent material to surfaces, in general B05C 17/00; container closures with pads or like contents-applying means, in general B65D 47/42)}
Definition statement

This place covers:

Handheld devices only for applying drugs onto the body.

References
Limiting references

This place does not cover:

Hand-held massage devices with liquid delivery

A61H 7/003 , A61H 2201/105

Aapparatus for iontophoresis

A61N 1/30

Hand tools for applying fluent material to surfaces, in general

B05C 17/00

Container closures with pads or like contents-applying means, in general

B65D 47/42

{Absorbent pads, e.g. swabs, containing a liquid, e.g. in a rupturable reservoir (absorbent pads, e.g. swabs, for medical use, in general A61F 13/00, e.g. A61F 13/38)}
References
Limiting references

This place does not cover:

Absorbent pads, e.g. swabs, for medical use, in general

A61F 13/00, A61F 13/38

Other apparatus for introducing media into the body (for reproduction or fertilisation A61B 17/425; apparatus for iontophoresis or cataphoresis A61N 1/30); Percutany, i.e. introducing medicines into the body by diffusion through the skin (salt baths A61H 33/04)
Definition statement

This place covers:

Devices for introducing substances (mainly drugs) into the body through artificial openings, e.g. thanks to puncturing with needles, thanks to application of ultrasound

References
Limiting references

This place does not cover:

Implantable pumps

A61M 5/14276

Syringes

A61M 5/178

Reproduction or fertilisation

A61B 17/425

Salt baths

A61H 33/04

Iontophoresis or cataphoresis

A61N 1/30

Informative references

Attention is drawn to the following places, which may be of interest for search:

Vaccination needles

A61B 17/205

Acupuncture

A61H 39/08

{having means for enhancing the permeation of substances through the epidermis, e.g. using suction or depression, electric or magnetic fields, sound waves or chemical agents}
References
Informative references

Attention is drawn to the following places, which may be of interest for search:

Ultrasound, e.g. phonophorese

A61M 37/0092

Iontophoresis or cataphoresis

A61N 1/30

{by using microneedles}
Relationships with other classification places

Please propose the following classes as well:

Drug coated or drug delivering microneedles with specific drugs

{Methods for producing microneedles}
Relationships with other classification places

Please propose the following classes as well (if applicable):

Shaping techniques

Manufacture or treatment of devices or systems in or on a substrate

{Devices for implanting pellets, e.g. markers or solid medicaments (for introducing of radioactive sources for interstitial radiation therapy, i.e. brachytherapy A61N 5/1027)}
Definition statement

This place covers:

Solid implants, e.g. solid medicaments, marker, etc., and devices for implanting solid implants into the body invasively

References
Limiting references

This place does not cover:

Radioactive implants and devices which are used only for implantation of radioactive implants (special sizes, shapes, radiation protection, etc.)

A61N 5/1001

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cannula for implanting or removing devices

A61B 17/3468

Solid drug implants

A61K 9/0024

{Tattooing apparatus (apparatus for marking animals A01K 11/00; vaccine applicators having needles or other puncturing means A61B 17/205)}
Definition statement

This place covers:

  • Devices for applying permanent tattoos.
  • Devices for applying temporary tattoos.
  • Devices for applying temporary tattoos without using needles, e.g. adhesive tattoos.
References
Limiting references

This place does not cover:

Apparatus for marking animals

A01K 11/00

Vaccination needles

A61B 17/205

Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use (for respiratory devices, e.g. tracheal tubes A61M 16/00; artificial heart valves A61F 2/24)
Definition statement

This place covers:

Access sites (subcutaneous or transcutaneous), haemostasis valves, medical tubes and means for storage of said tubes, tube connectors, caps or plugs for tubes or connectors, valves and clamping means for medical tubes.

References
Limiting references

This place does not cover:

Connecting needles to syringes

A61M 5/34

Tracheal tubes (respiratory tubes)

A61M 16/04, A61M 16/08

Respiratory valves

A61M 16/20

Connecting catheter tubes to hubs

A61M 25/0014

Vascular valves

A61F 2/24 - A61F 2/2496

Informative references

Attention is drawn to the following places, which may be of interest for search:

Tube strippers

A61M 1/0078

Peritoneal dialysis catheter

A61M 1/285

Fistulas

A61M 1/3655

Regulating valves in infusion systems

A61M 5/16881

Resheathing means for used needles

A61M 5/321

Locating means to allow access to septum

A61M 5/427

Tracheotomy devices

A61M 16/0465

Measuring pressure within body

A61B 5/03

Cranial plugs

A61B 2090/103

Colostomy devices

A61F 5/445

Gastrotomy feeding tubes

A61J 15/0015

Method or apparatus for disinfecting or sterilizing

A61L 2/00

Screw clamps in general

F16K 7/061

Lever clamps in general

F16K 7/063

Camp clamps in general

F16K 7/065

Wedge clamps in general

F16K 7/066

Tube cut-off devices by bending or twisting the tube in general

F16K 7/068

Starling valves in general

F16K 7/07

Multiway valves in general

F16K 11/08

Swivel nut connector (screw threaded joint) in general

F16L 15/00

Union screw connector (sealing surfaces pressed together by means of a member) in general

F16L 19/00

Rotating or swivel joints in general

F16L 27/00

Connecting hose to rigid members in general

F16L 33/00

Quick-acting type connectors in general

F16L 37/00

Multi-channel connectors in general

F16L 37/56

Special rules of classification

The classification of "additional information" in the field is mandatory, but only if the additional information has some importance.

For example, the main invention is an access site (A61M 39/02), but a valve (A61M 39/22) is present in the device. If the valve is just a common check valve with no specific details, then it is not worth giving a class in the field of valves. On the contrary, if the check valve is well described and presents some interesting features, then the document should also be classified in the field of valves.

Further details of subgroups

This subgroup contains the access sites. They are divided in two main categories: the subcutaneous access sites (A61M 39/0208) that are implanted under the skin and are therefore invisible to the user; and the transcutaneous acces sites (A61M 39/0247) that actually go through the skin and that therefore have a part exposed to the outside. Historically the transcutaneous access sites were in an other field, they have been recently regrouped with the subcutaneous access sites. A61M 39/0208 still contains documents that would now belong in A61M 39/0247 but that were put in A61M 39/0208 at a time where A61M 39/0247 did not yet exist.

Haemostatis valves.

This subgroup regroups all kinds of medical connectors (except respiratory connectors that can be found in A61M 16/08). Some of the subdivisions of this subgroup mirror the way in which the general connectors are classified in F16L. Other subdivisions are more specific to the medical connectors.

This subgroup contains medical check valves that are mostly classified by the way in which the check valve works, i.e. what kind of element (hinged member, flexible disc, ball, stem etc.) is used inside the valve to get the desired "non-return effect". Again here, the subdivisions in this subgroup mirror the subdivisions of the group F16K 15/00 that contains general check valves.

This subgroup contains valve closing automatically on disconnecting the line and opening on reconnection. Part of the subdivisions deals with the way in which the fluid space inside the valve is affected by disconnection. It can be difficult to find that information in the document to be classified, therefore extra-care is required when classifying in this subgroup.

This subgroup contains medical clamps for squeezing flexible tubes. Again here, the subdivisions in this subgroup mirror the subdivisions of the group F16K 7/00 that contains general clamps.