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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 subclass/group 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.

Relationship between large subject matter areas

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 relevant to classification in this subclass
This subclass/group 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
Devices or methods for handling cosmetic or toilet substances
Surgical introduction or removal of body parts or their substitutes
Devices specially adapted for taking blood samples
Devices specially adapted for vivisection or autopsy
Devices or methods for introducing solid, liquid, or gaseous remedies or other materials into or onto the bodies of animals
Prostheses implantable into a human body
Medicinal preparations characterised by special physical form
Chemical aspects of bandages, dressings, absorbent pads, or other surgical articles placed upon into human body
Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents
A61N1/34

Examples of places where the subject matter of this subclass 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
Application swabs
Devices for receiving spittle
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
Application swabs
Devices for receiving spittle
Special rules of classification within this subclass

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.

Glossary of terms
In this subclass/group, 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 to A61M 5/00 , A61M 11/00 to A61M 16/00 , A61M 27/00 to 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)
Definition statement
This subclass/group covers:

Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems. Typical examples of devices covered in this group are: medical suction drainage systems with or without irrigation, containers therefor, medical suction pumps of all kinds including milk pumps, drainage tubes being used with a suction device, negative wound pressure therapy systems, blood transfusion apparatus, blood pumps, hemodialysis and hemofiltration devices, peritoneal dialysis devices, blood oxygenators, extracorporeal blood treatment devices.

References relevant to classification in this group
This subclass/group does not cover:
Irrigators; Enemata
Syringes; Infusion devices
Sprayers or atomizers
Inhalators
Respirators
Drainage appliances for wounds
Dilators
Devices for introducing or retaining media
Devices for applying media
Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters
Tube connectors, tube couplings, valves or branch units specially adapted for medical use
Devices for taking samples of blood
Implements for holding wounds open
Saliva removers for dentists
Filters implantable into blood vessels
Pumps in general
Devices worn by the patient for reception of urine, faeces, catamenial or other discharge
Special rules of classification within this group

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 (A61M 2202/00-A61M 2250/00) are also used.

{Containers for suction drainage, e.g. rigid containers}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Blood reservoirs
{Self-contained vacuum aspirators}
Definition statement
This subclass/group 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 subclass/group 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

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 subclass/group covers:

only DRAINAGE CONTAINERS (thus not syringe pumps where the aspirated material is not entering the syringe barrel) incorporating a movable rigid wall

References relevant to classification in this group
This subclass/group does not cover:
Containers with a flexible member creating suction
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cupping glasses
Piston (air) pumps for creating suction
A61M2001/0068
{Drainage containers incorporating a flexible member creating suction, e.g. bags in a low-pressure chamber, bellows}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Emptying infusion-containers
Rigid container with flexible liner
Membrane (air) pumps for creating suction
A61M2001/0072
Liner in a rigid container
K61M1/00A1L
{Two- or three-bottle systems for underwater drainage, 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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Devices worn by the patient for the reception of urine etc
Emptying devices for drainage bags
Surgical drapes with fluid collection means
{Gravity drainage systems (A61M 1/0019 takes precedence ) }
References relevant to classification in this group
This subclass/group does not cover:
Drainage containers not being adapted for subjection to vacuum
{Suction drainage systems ( containers therefor A61M 1/0001 ; suction-irrigation systems A61M 1/0058) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this subclass/group
This subclass/group does not cover:
units with incorporated vacuum source through which liquid passes, these are considered as pumping containers
Informative references
Attention is drawn to the following places, which may be of interest for search:
Containers therefor
Suction-irrigation systems
{Suction control (A61M 1/0013 , A61M 1/0041 take precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
With means for varying suction manually
Two- or three-bottle systems for underwater drainage
Informative references
Attention is drawn to the following places, which may be of interest for search:
Controlling pressure, in general
{Intermittent or pulsating suction (A61M 1/0005 , A61M 1/0062 take precedence ) }
References relevant to classification in this group
This subclass/group does not cover:
With means for emptying the suction container, e.g. by interrupting suction
Operating alternately
{Handpieces ( aspiration tips A61M 1/008) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Aspiration tips
{with means for varying suction manually ( suction control A61M 1/0031) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Suction control more generally
{by changing the section of the line}
Definition statement
This subclass/group covers:

handpieces with means for varying suction manually by changin the section of the line, e.g. changing the 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 relevant to classification in this group
This subclass/group does not cover:
In combination with changing the section of the line
{Means preventing overflow or contamination of the pumping systems ( combined with rigid drainage containers A61M 1/0001) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Combined with rigid drainage containers
{Filters for solid matter ( similar devices for dental use A61C 17/046) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
For dental use
{Suction-irrigation systems ( aspiration tips supplying fluids A61M 1/0084 ; combined with tracheal tubes A61M 16/0463) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
In endoscopes
Aspiration tips supplying fluids
Combined with tracheal tubes
Dental
{operating alternately (A61M 1/0064 takes precedence ) }
Definition statement
This subclass/group covers:

Suction irrigation systems whith suction and irrigation being operated alternately

References relevant to classification in this group
This subclass/group does not cover:
Handpieces
Single needle systems
{Handpieces therefor}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Irrigators with suction means
{Suction pumps (A61M 1/0003 , A61M 1/0011 , A61M 1/0023 , A61M 1/10 take precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Self-contained vacuum aspirators
Drainage containers incorporating a flexible member creating suction
Suction drainage systems
Blood pumps
{by vacuum created above a liquid flowing from a closed container}
Definition statement
This subclass/group 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}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Similar devices in ventilators
A61M2016/0012
{Tube strippers, i.e. for clearing the contents of the tubes ( vein strippers A61B 17/00008) }
References relevant to classification in this group
This subclass/group does not cover:
Vein strippers
{Drainage tubes; Aspiration tips}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Wound drainage tubes without described suction means
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cupping glasses
Combined with tracheal tubes
Surgical middle ear drainage
{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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
For irrigation without suction
Double lumen needles
Multi lumen catheters
Combined with endotracheal tubes
Dental
{with a seal, e.g. to stick around a wound for isolating the treatment area}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Wound drain tubes
Absorbent bandages or dressings
Absorbent bandages or dressings with possibility of applying fluid
K61J13/00J8
Absorbent bandages or dressings with possibility of applying fluid and pressure
K61J13/00J8A
Blood transfusion apparatus ( blood infusion by syringes A61M 5/14)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Blood infusion by syringes
{Multiple bag systems for separating or storing blood components}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Details of blood bags
{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}
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
{combined with blood container shaking means}
Definition statement
This subclass/group covers:

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

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
{Means for agitating or shaking blood containers (A61M 1/0245 takes precedence; shaking in general B01F 11/00) }
References relevant to classification in this group
This subclass/group does not cover:
Combined with blood container shaking means
Informative references
Attention is drawn to the following places, which may be of interest for search:
Shaking in general
{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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
For agitating
For separating blood components present in distinct layers in a container
{prior to or for conservation, e.g. for freezing, drying, centrifuging}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Prior to transfusion
{prior to transfusion, e.g. for washing, filtering, thawing}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Prior to or for conservation
{Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Prior to transfusion
{Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Prior to or for conservation
{Separating blood components present in distinct layers in a container, not otherwise provided for ( containers for storing blood or blood components A61J1/00T ; sampling or analysing blood by separating blood components G01N 33/491) }
Definition statement
This subclass/group covers:

Separating stratified blood components.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Containers for storing blood or blood components
Sampling or analysing blood by separating blood components
{Artificial} pneumothorax apparatus
Definition statement
This subclass/group covers:

Artificial pneumothorax apparatus, e.g. devices for creating and treating a pneumostoma

Milking pumps ( feeding-bottles A61J 9/00)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Feeding bottles
Breast shields
Teats
Brassieres
Cupping glasses
Definition statement
This subclass/group covers:

This group covers the traditionnal cupping glasses, but contains also similar devices such as poison extractors

Informative references
Attention is drawn to the following places, which may be of interest for search:
Suction massage
Special rules of classification within this group
Rigid cups having pumping shut-off valves are coded with
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 relevant to classification in this group
This subclass/group does not cover:
Heart stimulation
Constructive details of valves therefor
{Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Electric motors
{Pumps having flexible elements, e.g. with membranes, diaphragms, or bladder pumps}
References relevant to classification in this group
This subclass/group does not cover:
Moving membranes in blood filters used for pumping
A61M2001/267
Constructive details of valves therefor
{Drive systems therefor, e.g. mechanically, electromechanically or skeletal muscle drive means}
Definition statement
This subclass/group covers:

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

{using non-rotary electrical means}
Definition statement
This subclass/group covers:

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

{using a blood vessel as flexible element (not used, see subgroups) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Using the heart wall as a flexible element
Special rules of classification within this group

documents are only classified in the parallel Indexing Code-code

{using the heart as flexible element}
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
{Pulsating membrane pumps without valves, e.g. for counter pulsation, extra-arterial balloon pumps}
Definition statement
This subclass/group covers:

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

{Intra-arterial balloon pumps, e.g. intra-aortic}
References relevant to classification in this group
This subclass/group does not cover:
Other intravascular pumps
A61M2001/125
{Piston pumps}
References relevant to classification in this group
This subclass/group does not cover:
Constructive details of valves therefor
{Regulating or controlling systems therefor}
Definition statement
This subclass/group covers:

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

implantable into the body { (not used, see subgroups) }
References relevant to classification in this group
This subclass/group does not cover:
Intravascular balloon pumps
Membrane pumps using a blood vessel as flexible element
{Energy supply devices, converters therefor}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Telemetry, communication with implanted devices
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)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Haemofiltration using non reciprocating systems
Extracorporeal blood circuit aspects
Processes of separation using semi-permeable membranes
Semi-permeable membranes characterized by the material, manufacturing processes therefor
Peritoneal dialysis catheters
A61M1/29C
with membranes { (A61M 1/30 takes precedence; membranes per se B01D 69/00 , B01D 71/00) }
References relevant to classification in this group
This subclass/group does not cover:
Single-needle systems
Informative references
Attention is drawn to the following places, which may be of interest for search:
Blood circuits thereof
Membranes per se
Materials and manufacturing or membranes
{Dialysates therefor}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Chemical formulae of dialysates
Medicinal preparation containing inorganic ingredients
Treating water for medical purposes
{Apparatus for preparing dialysates ( with regeneration of dialysates A61M 1/1696) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
With regeneration of dialysates
{Degasification ( in general B01D 19/00) }
Definition statement
This subclass/group covers:

Degasification of dialysates

Informative references
Attention is drawn to the following places, which may be of interest for search:
Degasification in general
{intracorporal (A61M 1/28 and A61F 2/022 take precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Peritoneal dialysis
Artificial glands
Implanted artificial glands using bioreactors
{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 subclass/group 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.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Priming, rinsing blood circuits before or after use
Sterilisation of materials in general
Cleaning or sterilisation of membrane modules apart from the machine
{by heat}
Definition statement
This subclass/group covers:

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

{using chemical substances}
References relevant to classification in this group
This subclass/group does not cover:
Priming,rinsing blood circuits before or after use
{Detection of blood traces in dialysate ( testing of the membrane modules B01D 65/10 ; investigating fluid-tightness of structures in general G01M 3/00) }
References relevant to classification in this group
This subclass/group does not cover:
Other testing of filters for leaks
Informative references
Attention is drawn to the following places, which may be of interest for search:
Testing the membrane modules
Investigating fluid-tightness of structures in general
{with recirculating dialysing liquid}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Peritoneal dialysis
{with dialysate regeneration}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Substitution fluid using dialysate
A61M2001/3465
{Blood oxygenators with or without heat-exchangers (A61M 1/1678 takes precedence; membranes therefor B01D 67/00 , B01D 69/00 , B01D 71/00) }
References relevant to classification in this group
This subclass/group does not cover:
Intracorporal oxygenators
Informative references
Attention is drawn to the following places, which may be of interest for search:
Manufacturing of membranes therefor
Form or properties of membranes therefor
Materials and manufacturing of membranes therefor
{and internal elements} which are moving
Special rules of classification within this group

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

Peritoneal dialysis; {Other peritoneal treatment, e.g. oxygenation}
Definition statement
This subclass/group covers:

contains also other peritoneal treatment, e.g. oxygenation

Informative references
Attention is drawn to the following places, which may be of interest for search:
Irrigation systems
Bags therefor
Sterile connections
{Catheters therefor}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Sterile connections
{Dialysates therefor}
Informative references
Attention is drawn to the following places, which may be of interest for search:
For other dialysates
Preparation of dialysates
{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 subclass/group 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 subclass/group 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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Single-needle systems
Extracorporeal blood circuit aspects
{Diafiltration}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
For preventing coagulation
{Substitution rate control as a function of the ultrafiltration rate}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Weighing fresh and used dialysate
K61M1/16A7
{Substitution fluids}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Using dialysate as substitution fluid
A61M2001/3465
{Circuits for the preparation thereof}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Using dialysate as substitution fluid
A61M2001/3465
{with treatment of the filtrate}
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
A61M2001/3475
with treatment of the filtrate by dialysing the filtrate
A61M2001/3479
with treatment of the filtrate by filtrating the filtrate using another crossflow filter, e.g. a membrane filter
A61M2001/3482
with biological or chemical treatment of the filtrate, e.g. chemical precipitation, treatment by absorbents
A61M2001/3486
with treatment of the filtrate by using treatment agents in suspension
A61M2001/3493
{Plasmapheresis; Leucopheresis; Lymphopheresis (A61M 1/3472 takes precedence; single-needle processes A61M 1/30) }
References relevant to classification in this group
This subclass/group does not cover:
With treatment of the filtrate
Informative references
Attention is drawn to the following places, which may be of interest for search:
Single-needle processes
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 subclass/group 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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Single-needle circuits
Double lumen needles
Multi lumen catheters
{Level detectors; Level control}
Definition statement
This subclass/group covers:

Blood level detectors and blood level control.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Optical liquid level detectors in general
Measuring liquid level in general
Measuring liquid level in infusion
{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) }
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
In infusion devices
Observing bubbles in a liquid pool for leak detection, in general
{Degassing devices; Buffer reservoirs; Drip chambers; Blood filters ( priming A61M 1/3643 ; blood filters for infusion A61M 5/165) }
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Priming
Blood filters for infusion
Filters for solid matter in combination with suction devices
{Blood component filters, e.g. leukocyte filters}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Type of blood component
Filtering out liquids in general
Filters for lipoids
{Blood pressure control, pressure transducers specially adapted therefor}
Definition statement
This subclass/group covers:

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

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
K16M1/30A10
Blood pressure measurement on the patient
{Priming, rinsing before or after use}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Sterilizing the dialysator
Rinsing for regenerating the filter
Arrangements for blood volume reduction
A61M2001/3606
{Interfaces between patient blood circulation and extra-corporal blood circuit}
Definition statement
This subclass/group 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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheter holding devices
{Arterio-venous shunts, fistulae}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Access sites
{Flow rate transducers; Flow integrators (measuring the flow in general G01F) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Measuring flow in general
{for preparing cardioplegia solutions}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Means for cooling
{Cardiac or cardiopulmonary bypass, e.g. heart-lung machines}
Informative references
Attention is drawn to the following places, which may be of interest for search:
With assisted venous return
A61M2001/3667
{Electrical impedance measurement of body fluids; transducers specially adapted therefor}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Other measuring of impedance
{ Circuit parts not covered by the preceeding subgroups of group A61M 1/3621}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Level detectors
Gas bubble detectors
Degassing devices
Blood pressure control
Priming
Interfaces
Flow rate Transducers
For cardioplegia
Cardiac bypass
Impedance measurement
{Means preventing coagulation ( aspiration tips with anticoagulant delivery A61M 1/0084) }
Definition statement
This subclass/group 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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Aspiration tips with anticoagulant delivery
{Deactivation}
Definition statement
This subclass/group 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 document the following expressions/words " heparin", "ACD" , "citrate" and " liquemine" are often used as synonyms.

{by absorption (A61M 1/3675 takes precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Deactivation of means preventing coagulation
Informative references
Attention is drawn to the following places, which may be of interest for search:
Related fluid circuits
Special rules of classification within this group
Distinction between absorption and chemical treatment not always easy, therefore see also
{by irradiation}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Sterilization by irradiation in general
{Chemical treatment (A61M 1/3675 takes precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Deactivation of means preventing coagulation
Related fluid circuits
Special rules of classification within this group

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 subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Hypothermia
Heating or cooling the body for treatment
Heating or cooling devices for bringing media into the body or the media
{using separation based on different densities of components, e.g. centrifuging}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Centrifuges in general
Multiple bag systems therefor
A61M1/02E2B
Rotating membrane filtering
A61M2001/262
Removing constituents from donor blood and {storing or} returning remainder to body, {e.g. for transfusion}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Blood transfusion apparatus
Medical syringes, e.g. enemata; Irrigators (A61M 5/00 takes precedence; pistons A61M 5/315)
Definition statement
This subclass/group covers:

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

Relationship between large subject matter areas

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 relevant to classification in this group
This subclass/group does not cover:
Devices (e.g. syringes, needles) for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way
Catheters
Dilators
Informative references
Attention is drawn to the following places, which may be of interest for search:
Suction-irrigation systems
Pistons in syringes for use in subcutaneous, intra-vascular or intramuscular way
Drainage tubes with fluid supply means
Introducing media into body cavities
Baths
Eye baths
Nose baths
For colostomy
Ophthalmic surgery
A61F9/00R
Special rules of classification within this group

The "orthogonal" Indexing Codes scheme is also used.

In the subdivision Indexing Codes (i.e. the non-parallel Indexing Codes), as well the invention information as the additional information are classified (in the additional information field).

Subdivision-Indexing Codes:

A61M2003/0204

A61M2003/0208

A61M2003/0212

A61M2003/0216

A61M2003/022

Further details of subgroups

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 9/0021

surgical drapes with drain fluid collection means A61B 2019/106

splash shields for protection of the surgeon: A61B19/00F

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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Introducing media into/onto bodies of animals
Containers for medicinal or pharmaceutical purposes
Devices for transducing body media or for taking media from the body
Suction devices for medical purposes, blood pumps, blood filters…
Catheters
Medicinal preparations
Informative references
Attention is drawn to the following places, which may be of interest for search:
Combination of vial and syringe for mixing or transferring their contents
Blood transfusion
Apparatus for treating blood prior to transfusion
A61K35/14B3
Pressure measurement lumen
K61M25/00A6
Access sites
Y-connectors
Burettes, measuring cylinders for laboratory use
Telescopic rods
Holders comprising label
Linear peristaltic pumps, in general
Microneedles
Pressurized by contraction of elastic reservoir, in general
Protectors for sharp
Blood filters
Making filter elements
Flow control in general
Indicating presence, absence or direction of flow, in general
Detecting tissue temperature for diagnostic purposes
Valves in general
Measuring of body parameters
Syringes for taking blood samples
Filling of medical containers in general
B65B 3/003, A61J1/00M6
Holders for storage of radioactive sources
Surgical glue applicators
Syringes for injecting impression materials
Systems or apparatus for checking the occurrence of a condition
Hypodermic projectiles
Ampoules or carpules
A61J/06
Diffusion through the skin
Cell injection devices
Apparatus of the syringe type
Indicating or measuring liquid levels
Guide needles for catheters
Disposal of medical waste in general
Receptacles for refuse disposal in general
Disintegrating medical waste
B02C19/12M
Grinding sharp-pointed work pieces
Making of hollow needles
Connecting catheter tubes to hubs
Blood oxygenators
Hemofiltration equipment
Temperature treatment for blood
Heat exchange in general
Hearting or cooling in general
Heating by electric fields
Means for agitating
Medical informatics
Special rules of classification within this group

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.

All documents dealing with medical informatics (software, programming of infusion devices, etc.) should be classified under G06F 19/00.

Further details of subgroups

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-A61B5/14F, 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.).

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
Definition statement
This subclass/group covers:

Baths for subaquatic intestinal cleaning

Relationship between large subject matter areas

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Baths
Bathing devices for special therapeutic or hygienic purpose
Irrigators
Sprayers or atomisers specially adapted for therapeutic purposes ( in general B05B ; { aerosol containers B65D 83/14} )
Informative references
Attention is drawn to the following places, which may be of interest for search:
Sprayers or atomisers specially adapted for therapeutic purposes in general
Aerosol container
Spraying onto the body
Bath for the nose
Irrigator
Special rules of classification within this group

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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Spraying or atomising liquids using ultrasonic vibrations in general
Inhalators using ultrasonic
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 subclass/group covers:

Devices with positive air pressure.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Sprayers for horticulture
Killing insects
Air humidifying by nozzles
Cooling by spraying
Atomizer for painting
Adding O2, perfume to air
Air disinfection
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 subclass/group covers:

Electrical heated vaporiser.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Air-humidification, e.g. "room humidifiers"
Humidifiers
Electrical heated vaporizers
{using heaters}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Heating the liquid
A61M2016/109
of the injector type
Definition statement
This subclass/group covers:

Devices with with a venturi system

Informative references
Attention is drawn to the following places, which may be of interest for search:
Operated by air
Spraying apparatus
Single unit with follower
Pocket atomisers of the injector type { ( aerosol cans A61M 15/009) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Aerosol cans
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 subclass/group covers:

Devices to inflate a cavity for easy access.

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
Special rules of classification within this group

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}
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
Instrument for medical examination
A61B1/12B
Insufflating needles therefor
Inhalators { ( drug delivery in endotracheal tubes A61M 16/04) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Drug delivery in endotracheal tubes
For animals
Medicinal preparation for inhaling
Special rules of classification within this group

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 subclass/group covers:

Inhalators with unit dose with manual feeding

Informative references
Attention is drawn to the following places, which may be of interest for search:
Single unit with follower
Injector type
{using multiple prepacked dosages on a same carrier, e.g. blisters}
Definition statement
This subclass/group covers:

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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Using prepacked dosages
Informative references
Attention is drawn to the following places, which may be of interest for search:
Details of the spray nozzle
Dosage devices incorporated in aerosol cans
With aerosol and not described dosing
{using ultrasonics ( spraying or atomising liquids using ultrasonic vibrations in general B05B 17/06) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Spraying or atomising liquids using ultrasonic vibrations in general
Sprayers using ultrasonic
{Inhalation chambers}
Definition statement
This subclass/group 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 subclass/group covers:

Inhalators having a pressurized container, MDI

Informative references
Attention is drawn to the following places, which may be of interest for search:
Pocket atomiser of the injector type
Details of the spray nozzle
Dosing
Aeorosol container
{mechanically breath-triggered}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Inhalation valve providing indirect breath activation
A61M2015/0013
Flow sensor
Inhalation detection
with activated or ionised {fluids, e.g. electrohydrodynamic (EHD) or electrostatic devices} ; Ozone-inhalators {with radioactive tagged particles}
Definition statement
This subclass/group covers:

Also bubble jet technology inhalators.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Electrostatic spray gun
Sterilisation, deodorisation of air
Sterilisation using UV light
Bubble jet
A61M2015/025
Apparatus for generating ions
Inhaling appliances shaped like cigars, cigarettes or pipes { ( simulated smoking devices, e.g. imitation cigarettes, A24F 47/002) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Simulated smoking devices, e.g. imitation cigarettes
Inhaling devices inserted into the nose
Definition statement
This subclass/group covers:

Also eyes drop, aromatherapy devices.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Spraying apparatus
Eucaliptus vaporizer
Correcting deformities of the nose
Bath for nose
Irrigation
Using the smell sense
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 ; { supine patient supports therefor A61H 31/008} ; respiratory apparatus in general A62B; respirators for working under water B63C 11/00)
Definition statement
This subclass/group covers:

Respirator, ventilator, devices for inflating the lungs

Informative references
Attention is drawn to the following places, which may be of interest for search:
Respiratory apparatus in general
Respirators for working under water
Stimulating the respiratory movement by mechanical, pneumatic or electrical means, iron lungs combined with gas breathing means
Supine patient supports therefor
A61H31/00S2
Gas reservoir
Computer driven apparatus
G06F17/00D4, G06F 19/30
Models for artificial respiration
Gas bath
Portable appliance comprising a gas cartridge
B01F3/04C8B2
Testing ventilators
Anaesthesia apparatus
Supply appliance
A61G13/00G
Inserts in the lungs, e.g. stents
Hyperbaric chamber
Correcting deformities of the nose
Device for preventing snoring
Pneumothorax apparatus
Breathing simulator
Wall plug
Pipelines, hospital facility gas supply system
Special rules of classification within this group

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.

{Means for re-breathing exhaled gases, e.g. for hyperventilation treatment}
Definition statement
This subclass/group covers:

Also devices for hypoxic delivery of gas.

References relevant to classification in this group
This subclass/group does not cover:
CO2 absorbing device
Informative references
Attention is drawn to the following places, which may be of interest for search:
Training device
K63B213/05F2
Hypoxic training
Hyperbaric training room
A61G10/20B
{Mouth-to-mouth respiration ( teaching or training models G09B 23/288) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Teaching or training models
{with alarm devices}
Definition statement
This subclass/group covers:

Also devices with screens, calculation of resistance, compliance, calculation systems, feedback, estimation system, systems using root square techniques, PID system.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Alarm in general
Resistance, compliance of the lungs
Monitoring
Stimulation
{Liquid ventilation}
Definition statement
This subclass/group covers:

Also ventilation in aerosol form.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Oxygenated solution
{Pumps therefor}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Reinflatable by elasticity
A61M2016/0084
Medical pump
Air pumping means for inhalator
A61M2011/006
Pumps in general
Other air pumps
Mask with pump
Special rules of classification within this group

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 subclass/group covers:

Pumps in the form of a fan, a turbine.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Gas pump in general
Helmet with fan
{Tidal volume piston pumps}
Definition statement
This subclass/group covers:

Tidal-Volume means a precise inspiratory volume.

{Breathing bags}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Material therefor
Reinflatable by elasticity
A61M2016/0084
Buffer chamber
{Removing used or expired gases or anaesthetic vapours}
Definition statement
This subclass/group covers:

Devices with charcoal, active carbon filter

References relevant to classification in this group
This subclass/group does not cover:
Filtering, sterilising or disinfecting the exhaust air in drainage systems
A61M2001/0052
Bacterial filters in the expiratory path
A61M2016/1065
{High frequency jet ventilation}
Definition statement
This subclass/group 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 subclass/group covers:

Closed circuit generally including a CO2 absorber.

References relevant to classification in this group
This subclass/group does not cover:
Anaesthetic mixer
Vaporizers
Informative references
Attention is drawn to the following places, which may be of interest for search:
CO2 absorber
Determining the level of anesthesia
Tracheal tubes ( catheters in general A61M 25/00)
Definition statement
This subclass/group covers:

They are tubes introduced generally through the mouth or the nose of the patient.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters in general
Prosthesis in the bronchi
Y-shaped prosthesis
Ostial prosthesis
K61F2/06E
Endoscope
Stethoscope
{External cuff pressure control or supply, e.g. synchronisation with respiration}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Mushroom valve
A61M2016/206
Pressure indicating device
Blood pressure cuff pressurizing apparatus
{Nasoendotracheal tubes}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Nasal cannula
A61M6/06L
{combined with suction tubes, catheters or the like; Outside connections}
Definition statement
This subclass/group covers:

A manifold, a suction inside the tube.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Aseptic insertion for cathters in general
Acces means to the stomach
A61M2016/0415
Gastrotomy feeding tube
Special rules of classification within this group

Also combined with drug delivery tube.

{Tracheostomy tubes; Devices for performing a tracheostomy; Accessories therefor, e.g. masks, filters}
Definition statement
This subclass/group covers:

Tube introduced through the trachea

Informative references
Attention is drawn to the following places, which may be of interest for search:
Obturators
A61M2016/0429
Artificial nose, transtracheal catheter, (trans)cricothyroid catheter, coniostomy prosthesis
{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 subclass/group covers:

To enable the patient to speak.

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
{Masks, filters, surgical pads, devices for absorbing secretions, specially adapted therefor}
Definition statement
This subclass/group covers:

Also plaster therefor

{Devices for performing a tracheostomy}
Definition statement
This subclass/group 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 subclass/group covers:

Also includes holders.

References relevant to classification in this group
This subclass/group does not cover:
Mouthpieces for live saving
Mouthpieces for divers
Mouthpieces in lung exercisers
Informative references
Attention is drawn to the following places, which may be of interest for search:
Holding devices on the body
Obturators
K61M16/04E18
Detecting from outside
Correcting deformities of the nose
Head rest
Patient airway positionning
Guiding or introducing with laryngoscopes
Respiratory or anaesthetic masks
Definition statement
This subclass/group covers:

Also hoods, cups

References relevant to classification in this group
This subclass/group does not cover:
Breathing masks in general
Informative references
Attention is drawn to the following places, which may be of interest for search:
Fabrication by injection moulding
Fabrication of gas mask
B29D31/00N4
Half mask
First aid mask
Correction of the deformities of the nose
Protective and/or surgical face mask
{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 subclass/group covers:

Also mounts for nasal tube.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Devices for improving normal breathing through the nose
Nose filters
Outside holding devices
Occluding, e.g. bellows
{Holding devices therefor}
Definition statement
This subclass/group covers:

Strap, headgear.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Fastening means
Means for securing a tube
Aquatic headgear
Bellows; Connecting tubes { ( having means for taking samples G01N 1/22) ; Water traps; Patient circuits}
Definition statement
This subclass/group covers:

Between a ventilator and the mask.

References relevant to classification in this group
This subclass/group does not cover:
Supports
Informative references
Attention is drawn to the following places, which may be of interest for search:
Having means for taking samples
Heated tubes
A61M2016/1095
Tube support
{Condensation traps}
Definition statement
This subclass/group covers:

To dry the gas.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Vaporization chambers
Drying gas
{Joints or connectors}
Definition statement
This subclass/group covers:

Connector: the element between the ventilation device and the tube

Informative references
Attention is drawn to the following places, which may be of interest for search:
Detection of the connection
Wall plug
Tube connector
{Connecting tubes}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Hoses in general
Pipelines, hospital facility gas supply system
Tubes
Preparation of respiratory gases or vapours
Informative references
Attention is drawn to the following places, which may be of interest for search:
Local anaesthesia
Cryogenic reservoir
O2 for aircraft
{specially adapted for anaesthetics (A61M 16/18 takes precedence ) }
Definition statement
This subclass/group covers:

Mixer for anaesthetics with safety solution.

References relevant to classification in this group
This subclass/group does not cover:
Vaporizers
Informative references
Attention is drawn to the following places, which may be of interest for search:
Local anaesthesia
Adapted for anaesthesia
Veterinary applications
Mixing in general
{Devices for humidifying or heating the inspired gas by using recovered moisture or heat from the expired gas}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
CO2 canister
Special rules of classification within this group

Also for anaesthetic agent.

{Filters (A61M 16/047 , A61M 16/22 take precedence; water traps A61M 16/08) }
Definition statement
This subclass/group covers:

Gas filtering for medical purpose

References relevant to classification in this group
This subclass/group does not cover:
Masks, filters, surgical pads, devices for absorbing secretions, specially adapted therefor
CO2 canister
Informative references
Attention is drawn to the following places, which may be of interest for search:
Respiratory filter
Water traps
Filter in general
{by influencing the temperature (A61M 16/1045 takes precedence ) }
Definition statement
This subclass/group covers:

The temperature of the gas or the liquid.

References relevant to classification in this group
This subclass/group does not cover:
Heat and Moisture Exchanger
Informative references
Attention is drawn to the following places, which may be of interest for search:
Tube
Heating
Biomedical electrical heating control
by mixing different gases
Informative references
Attention is drawn to the following places, which may be of interest for search:
Anaesthesia mixer
Filling gas container
Vessel with valves
Gas mixing in general
by mixing different fluids, one of them being in a liquid phase
Definition statement
This subclass/group covers:

Also powder mixing with gas.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Mixing in general
Sprayers with venturi
Devices to humidify the respiration air { (A61M 16/1045 takes precedence ) }
References relevant to classification in this group
This subclass/group does not cover:
Heat and Moisture Exchanger
Informative references
Attention is drawn to the following places, which may be of interest for search:
CO2 canister
Humidification in general
Steam bath
Passive humidifier
Vaporizer
Mixing gas and liquid in general
Air-humidification, e.g. "room humidifiers"
{Water-reservoir filling system, e.g. automatic}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Filling systems in general
Vaporising devices for anaesthetic preparations
Definition statement
This subclass/group covers:

Vaporizer for a product such as Halothane.

{Filling systems}
Definition statement
This subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Level detection
Filling system
Filling systems in general
{Locking systems}
Definition statement
This subclass/group 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 subclass/group covers:

Also PEEP(Positive End Expiratory Pressure) valve.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Respiratory valve
Apparatus for passive exercising
Divers equipment
Valve in general
Breathing training devices
Medical valve
{Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves}
Definition statement
This subclass/group covers:

Check valve.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Vibration means
A61M2016/0006
Respiratory one-way valves
One-way valves in general
Special rules of classification within this group

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 subclass/group covers:

CO2 canister, soda-lime canister

Informative references
Attention is drawn to the following places, which may be of interest for search:
Cartridges with absorbing substances for respiratory apparatus
Filter
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 relevant to classification in this group
This subclass/group does not cover:
Desensitising skin
Informative references
Attention is drawn to the following places, which may be of interest for search:
Syringes therefor
Cooling blood in a bypass of the arterial system
Cooling internal body cavities
Epidural puncture
Special rules of classification within this group

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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Measuring the level of relaxation
Body clock
A61N5/06C3C
Light or sound exposure not directed to the corresponding sensory organ
Biorhythms
Speech recognition
Tinnitus
H04R25/00G4, A61B5/12B
Respiratory rhythm indicators
Special rules of classification within this group

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) }
Informative references
Attention is drawn to the following places, which may be of interest for search:
Other treatment rooms or enclosures
Isolators
Bathing devices
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 1/34)
Informative references
Attention is drawn to the following places, which may be of interest for search:
For massage
Electrotherapy
Applying alternating or intermittent electric currents for producing anaesthesia
A61N1/34
Electrical
A61N 1/3601, A61N1/36A5
Sleep evaluation
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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Peritoneal catheter
Tracheal tubes
Dynamic features of catheters, like steering, guiding and advancing
Drainage tubes
Catheters for natural cavities (e.g. uterus, vagina, rectum)
Surgical instruments
Surgical instruments for veterinary use
Feeding tubes
Materials for catheters
Special rules of classification within this group

A61M 25/00 to A61M 29/02 comprises subgroups which cover technical features (e.g. A61M 25/10: Balloon catheters, A61M 25/002: Packages for catheters), as well as subgroups which cover uses (e.g. A61M 25/0017: long-term hygiene, A61M 25/01: for introducing, guiding, advancing, emplacing or holding, A61M 25/02: holding, A61M 25/104: Balloon catheters for angioplasty). Therefore a kind of indexed classification is sometimes possible.

Technical features, which appear to be the "invention", are often covered only by Indexing Code subgroups and have a classification in the next higher in hierarchy group. Therefore classification should be done as follows:

classify the "main use" into the relevant subgroup, if the subgroup exists;

classify the technical features, which appear to be the "invention", into the relevant subgroups, if the subgroups exist;

if neither a subgroup for the "main use" nor for the technical feature, which appears to be the "invention", exists then classify the technical features, which appear to be the "invention", into the relevant Indexing Code subgroups, and classify the document into the next higher in hierarchy group;

additional technical features (technical features which appear not to be the "invention"), but which are interesting for search reasons, e.g. new combination of features, detailed explanation of features, uses etc., should be classified always only into the relevant Indexing Code subgroups.

with a pressure sensor at the distal end
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Pressure measurement catheters, details of pressure measurement, pressure sensors and other sensors
having an additional lumen transmitting fluid pressure to the outside for measurement
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Pressure measurement catheters, details of pressure measurement, pressure sensors and other sensors
having two or more concentrically arranged tubes for forming a concentric catheter system
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Catheters having telescopic features, interengaging nestable members movable in relation to one another
Systems with catheter and outer tubing
Epidural catheters
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Puncturing needles
Informative references
Attention is drawn to the following places, which may be of interest for search:
For the use in the brain or cerebrum
K61M211/520
For the use in the spinal column
K61M211/60
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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Radio-opaque and ultrasound marker on catheters or medical tubes
Magnetic marker on catheters or medical tubes
Radio-opaque markers on guide wires
Visible markers which specifically belong to surgical instruments
Informative references
Attention is drawn to the following places, which may be of interest for search:
Optical identification means
{Making of catheters or other medical or surgical tubes}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Connections between catheter tubes and inflation tubes
Method of making balloon catheters
Method of making a guide wire
Making of surgical instruments
Making of surgical instruments for transferring non-mechanical forms of energy (specific features for such devices, e.g. electrodes, cryotips)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Making of catheters
L29C535/14
Devices for applying a coating
Process for applying a coating
Cutting tools

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

Injection moulding
Extrusion moulding
Blow moulding
Shaping by stretching, e.g. drawing though a die
Shaping of tube ends
Lining or sheathing
Joining

For a multi-step process:

Producing tubular articles
Special rules of classification within this group

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

{Forming the tip of a catheter, e.g. bevelling process, join or taper}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Method of making balloon catheters
Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheter characterised by the distal end
Cutting tools
Injection moulding
Extrusion moulding
Blow moulding
Shaping of tube ends
Joining
Special rules of classification within this group

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 subclass/group 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.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters with embedded materials
Devices for applying a coating
Process for applying a coating
Injection moulding
Extrusion moulding
Blow moulding
Lining or sheathing
Producing tubular articles
Special rules of classification within this group

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 subclass/group covers:

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

References relevant to classification in this subgroup
This subclass/group does not cover:
Tip steering due to weakening outer material
Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters with regions for increasing flexibility
Cutting tools
Special rules of classification within this group

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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Connections between catheter tubes and inflation tubes
Informative references
Attention is drawn to the following places, which may be of interest for search:
Joining
Tube connectors; tube couplings
Characterised by the hub
Special rules of classification within this group

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 subclass/group covers:

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

Informative references
Attention is drawn to the following places, which may be of interest for search:
Side holes
Cutting tools
{specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections}
Definition statement
This subclass/group 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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Closure means for urethra
Devices worn by the patient for reception of urine
Drainage catheters
Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
Definition statement
This subclass/group covers:
  • Cleaning the catheter from the inside and/or outside.
  • Cleaning with or without solutions.
  • Cleaning with or without mechanical means, e.g. brush.
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cleaning pipes or tubes,external surfaces
Cleaning pipes or tubes, internal surfaces
Special rules of classification within this group

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 19/026) }
Definition statement
This subclass/group covers:

Packages only for catheters, medical tubes and guide wires

References relevant to classification in this group
This subclass/group does not cover:
Casings for packaging, protecting or dispensing (surgical) articles
Packages specially adapted for devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way
Packages or dispensers for (surgical) needles or sutures
Aseptic insertion devices
Catheter dispensers
Packages or dispensers for prostheses or other implants
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
Containers, packaging elements or packages for contents presenting particular transport or storage problems
Containers or packaging with special means for dispensing contents (i.e. to take things out of a package)
Containers, packaging elements or packages specially adapted for particular articles or materials
{characterised by the form of the tubing (A61M 25/0054 takes precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
With regions for increasing flexibility (takes precedence)
Expandable catheters or sheaths
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Balloon catheter
Dilators
For holding in lumen
Informative references
Attention is drawn to the following places, which may be of interest for search:
Guide tubes
Trocars; Puncturing needles, details of tips or shafts
having a collapsible lumen
Informative references
Attention is drawn to the following places, which may be of interest for search:
Trocars; Puncturing needles, details of tips or shaft
{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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Balloon catheters
Concentric catheters
Catheter tip with multiple lumens
Informative references
Attention is drawn to the following places, which may be of interest for search:
Drainage tubes; Aspiration tips
Catheters for dialysis
Interfaces of extra-corporeal blood circuits
{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 subclass/group covers:
  • Multilumen catheters with features relating to the proximal part of the lumens
  • Only multi-lumen catheters
References relevant to classification in this group
This subclass/group does not cover:
characterised by the hub
{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 subclass/group covers:
  • Multilumen catheters with features relating to the middle part of the lumens
  • Only multi-lumen catheters
References relevant to classification in this group
This subclass/group does not cover:
Side holes at distal tip
Balloon catheter
Having a special surface topography or special surface properties
{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 subclass/group covers:
  • Multilumen catheters with features relating to the distal part of the lumens
  • Only multi-lumen catheters
References relevant to classification in this group
This subclass/group does not cover:
Distal tip features generally
characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
Informative references
Attention is drawn to the following places, which may be of interest for search:
Extra-corporeal blood circuits
Catheters for dialysis
{pre-formed, e.g. specially adapted to fit with the anatomy of body channels ( urethral catheters A61F 2/04) }
References relevant to classification in this group
This subclass/group does not cover:
Implantable prosthesis in hollow or tubular parts of organs
Pre-shaped drainage appliances, for use in the urethral or ureteral tract
Pre-shaped guide wires
Tip steering with pre-shaped mechanisms
Micro catheters, cannula or the like having outside diameters around 1 mm or less
Definition statement
This subclass/group covers:

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

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

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

References relevant to classification in this group
This subclass/group does not cover:
Coating materials
Coatings for improving slidability
References relevant to classification in this group
This subclass/group does not cover:
Coating materials
{with embedded materials for reinforcement, e.g. wires, coils, braids}
Definition statement
This subclass/group covers:

Features to reinforce catheter tubes.

References relevant to classification in this group
This subclass/group does not cover:
Methods of making catheters with embedded structures
Tip steering due to inner reinforcing means
Improve flexibility of catheters
{made from fenestrated or weakened tubing layer}
Definition statement
This subclass/group covers:

Catheter tubes reinforced by using an embedded fenestrated additional tube

References relevant to classification in this group
This subclass/group does not cover:
Reinforcement by embedded coils or braids
{with regions for increasing flexibility}
References relevant to classification in this group
This subclass/group 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
Tip steering due to weakening outer material
Tip steering due to material with different mechanical properties
Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters having a soft tip
provided with an antibacterial agent, e.g. by coating, residing in the polymer matrix or releasing an agent out of a reservoir
References relevant to classification in this group
This subclass/group does not cover:
Drug delivery coatings
Informative references
Attention is drawn to the following places, which may be of interest for search:
Biological active materials
Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings
Definition statement
This subclass/group covers:

Catheters using unconventional ways for medicament delivery, e.g. through porous walls, hydrogel coatings with incorporated medicaments, through coils.

References relevant to classification in this group
This subclass/group does not cover:
Antibacterial coatings
Side openings
Informative references
Attention is drawn to the following places, which may be of interest for search:
Biological active materials
having an electroactive polymer material, e.g. for steering purposes, for control of flexibility, for locking, for opening or closing
References relevant to classification in this group
This subclass/group does not cover:
Tip steering
Informative references
Attention is drawn to the following places, which may be of interest for search:
Materials for catheters characterised by their function
having a special surface topography or special surface properties, e.g. roughened or knurled surface
Definition statement
This subclass/group covers:

Catheters with an unusual surface topography for solving technical problems, e.g. roughened surface for increasing friction between tissue and catheter.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopes with roughened shaft
Endoscopes with grooved shaft
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 subclass/group covers:

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

No bearings or the like

References relevant to classification in this group
This subclass/group 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 subclass/group covers:

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

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.
Endoscopes with stiffening means
{characterised by the distal end, e.g. tips (A61M 25/0054 , A61M 25/04 take precedence; balloon catheters A61M 25/10) }
References relevant to classification in this group
This subclass/group does not cover:
With regions for increasing flexibility (takes precedence)
Holding in the body (takes precedence)
Balloon catheters
Surgical instruments for transferring non-mechanical energy to the body (ablation)
Tip steering
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
Distal tips of endoscopes
{Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Pre-formed, e.g. specially adapted to fit with the anatomy of body channels
Special rules of classification within this group

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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Catheter with injection needles
Informative references
Attention is drawn to the following places, which may be of interest for search:
Side holes for perfusion
Side holes for perfusion
Needles for infusion
{Multiple separate lumens ( multiple separate lumens throughout the catheter A61M 25/0026) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Multi-lumen catheters with stationary elements
{Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable}
References relevant to classification in this group
This subclass/group does not cover:
Balloon catheters
Expandable structures for holding within the body
Tools at the distal tip
{Valve means}
Definition statement
This subclass/group covers:

Valves at the distal tip

References relevant to classification in this group
This subclass/group does not cover:
Cerebrospinal drainage, e.g. valves
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)
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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Occlusion of natural lumens
A61M25/10Z4
Catheter with collapsible lumen
Informative references
Attention is drawn to the following places, which may be of interest for search:
Guide wire having a balloon
Soft tip
Informative references
Attention is drawn to the following places, which may be of interest for search:
Catheters having regions for increasing flexibility
{Catheter tip comprising a tool}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Pre-formed, e.g. specially adapted to fit with the anatomy of body channels
{being one or more injection needles}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Drug delivery through needles without catheter
Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopic needles
Special rules of classification within this group

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 subclass/group 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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Details of microneedles
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 relevant to classification in this group
This subclass/group does not cover:
Introducing instruments through an endoscopic needle
Electrodes for stimulation
Informative references
Attention is drawn to the following places, which may be of interest for search:
Holding in a body lumen
being laterally outward extensions or tools, e.g. hooks or fibres
References relevant to classification in this group
This subclass/group does not cover:
Catheters with injection needles
Catheters with solid needles e.g. for holding
Electrodes
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
{characterised by the hub ( connectors A61M 39/10) }
Definition statement
This subclass/group covers:
  • Hubs for introducing fluid or other devices
  • Handles without steering purpose
References relevant to classification in this group
This subclass/group does not cover:
Method of connecting a hub to a tubing
Handles for tip steering
A61M25/10C10A
Informative references
Attention is drawn to the following places, which may be of interest for search:
Tube connectors; tube couplings
Introducing, guiding, advancing, emplacing or holding catheters (A61M 25/10 takes precedence )
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Balloon catheter
{Insertion or introduction using an inner stiffening member, e.g. stylet or push-rod}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Means for changing the mechanical properties, that are inserted while the catheter is already in place within the human body
{Steering means as part of the catheter or advancing means; Markers for positioning (systems for detection of markers A61B) }
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Systems for detection of markers, without using radiation or US
Systems for detection of markers, using radiation
Systems for detection of markers, without using US
Markers, which specifically belong to surgical instruments
Radio-opaque markers on guide wires
Surgical robots for guiding instruments in the body; if the control device of this robots is outside the body of the patient
A61B19/00M2K61B19/00M2C
Tip steering
Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopes, for steering device is disclosed
Radio-opaque indicia
Special rules of classification within this group

All markers should additionally be sent to A61B 19/54

{using radio-opaque or ultrasound markers}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Ultrasound markers, which specifically belong to surgical instruments
K61B19/00R4
{Aseptic insertion devices}
References relevant to classification in this group
This subclass/group does not cover:
Tracheal tubes combined with catheters
{Mechanical advancing means, e.g. catheter dispensers}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Guide wire insertion devices
{self-propelled, e.g. autonomous robots (A61M 25/0122 takes precedence ) }
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Advancing means having fluid drives by external fluid in an open fluid circuit (takes precedence)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Micromanipulators
K61B19/00M4
Endoscopes using self-propulsion, e.g. capsule endoscopes, if a camera is part of the device
{with fluid drive by external fluid in an open fluid circuit}
References relevant to classification in this group
This subclass/group does not cover:
Bodily fluids
Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopes using self-propulsion, e.g. capsule endoscopes
{Catheters carried by the bloodstream, e.g. with parachutes; Balloon catheters specially designed for this purpose}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopes using self-propulsion, e.g. capsule endoscopes
{Magnetic means; Magnetic markers}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Magnetic markers, which specifically belong to surgical instruments
A61B 19/54K61B19/00R10
Systems for detection of markers, without using radiation or US
{Tip steering devices}
References relevant to classification in this group
This subclass/group does not cover:
Steering of the whole catheter
Informative references
Attention is drawn to the following places, which may be of interest for search:
Endoscopes
Ablation catheters
{having flexible regions as a result of weakened outer material, e.g. slots, slits, cuts, joints or coils}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Regions for increasing flexibility
{having flexible regions as a result of using materials with different mechanical properties}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Regions for increasing flexibility
{having flexible regions as a result of inner reinforcement means, e.g. struts or rods}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Embedded materials
{with pre-shaped mechanisms, e.g. pre-shaped stylets or pre-shaped outer tubes}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Pre-formed catheters
having telescopic features, interengaging nestable members movable in relations to one another
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Concentric catheters; Systems with two or more tubes/catheters within each other in a concentric way
Systems with catheter and outer tubing
having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Locking guide wires
Rapid exchange or monorail catheters with standard guidewire guiding means
Special rules of classification within this group

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 subclass/group 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 relevant to classification in this group
This subclass/group 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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Rapid exchange or monorail catheters as well in
A61F2/84, A61N, A61B 17/00
Balloon catheters
Special rules of classification within this group

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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
For creating an artificial passage within the body
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 relevant to classification in this group
This subclass/group does not cover:
For fixation outside the body
Holding devices, e.g. on the body
Definition statement
This subclass/group covers:

Holding of catheters, medical tubes and guide wires

specifically adapted for the mouth
Informative references
Attention is drawn to the following places, which may be of interest for search:
Mouth
K61M211/30
specifically adapted for the nose
Informative references
Attention is drawn to the following places, which may be of interest for search:
Nose
K61M211/20
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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Gastrostomy feeding tubes
Fixing Trocars
using pads, patches, tapes or the like
Informative references
Attention is drawn to the following places, which may be of interest for search:
Adhesive plasters
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 relevant to classification in this group
This subclass/group does not cover:
Holding within a natural lumen, e.g. vessel
in the body, e.g. expansible { (A61M 25/10 , A61M 16/0488 take precedence ) }
Definition statement
This subclass/group covers:
  • Expandable devices for holding (not balloons)
  • Other mechanisms
References relevant to classification in this group
This subclass/group does not cover:
Balloon catheters
Tracheal tubes, means for securing the tubes
Body-piercing guide needles or the like
Informative references
Attention is drawn to the following places, which may be of interest for search:
Trocars; Puncturing needles (usually for introducing bigger sized instruments or tubes)
Needles
Needles
{"Over-the-needle" catheter assemblies, e.g. I.V. catheters}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Guide needles, where the catheter will be delivered within the needle for introduction into the body
{Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Needle protection devices for assemblies without catheters
{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}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Retractable needles
{Guide needles}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
"Over-the needle" catheter assemblies
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)
{Guide tubes}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
"Over-the-needle" catheters
Guide needles
Informative references
Attention is drawn to the following places, which may be of interest for search:
Guide tubes for endoscopes
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!)
Introducing-sheath slitters
Informative references
Attention is drawn to the following places, which may be of interest for search:
Apparatus for cutting tubes longitudinally
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 within this group

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

{Flashback chambers}
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Devices for taking blood samples
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
{with mandrils}
Definition statement
This subclass/group 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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Mechanisms for the insertion of catheters
{extendable; e.g. mechanisms for extension}
Definition statement
This subclass/group covers:

Guide wires with variable length

Basic structures of guide wires (not used)
Special rules of classification within this group

This group should not be used and therefore kept empty!

Methods for making a guide wire
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Methods of making catheters
Methods of making balloon catheters
Informative references
Attention is drawn to the following places, which may be of interest for search:
Manufacturing of fine wires
Drawing wires
Specifics of dies
Modifying physical properties of steel by cold working
Heat treatment
Coiling wire
Twisting wire
Cutting wire
Connecting wire with wire
Metallic coating of wire
Device for locking a guide wire in a fixed position with respect to the catheter or the human body
Definition statement
This subclass/group covers:

Locks within and/or outside a catheter or human body

having radio-opaque features
Informative references
Attention is drawn to the following places, which may be of interest for search:
Radio-opaque markers on catheters
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 subclass/group covers:

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

Methods for making balloon catheters.

References relevant to classification in this group
This subclass/group does not cover:
Catheters carried by the bloodstream, e.g. with parachutes; Balloon catheters specially designed for this purpose (takes precedence)
Embolectomy
Retractor
Stomach balloons for treatment of obesity
Oesophagal tubes
Informative references
Attention is drawn to the following places, which may be of interest for search:
Balloons for stent delivery
A61F2/84B
Balloons for radiation therapy
A61N1/10B1
Cutting balloons
Surgical occlusion balloons
Temporary occlusion for surgery
Scraping balloon
{characterised by balloon shape (A61M 25/1006 , A61M 25/1009 take precedence ) }
References relevant to classification in this group
This subclass/group does not cover:
Balloons formed between concentric tubes
Balloons anchored to a disk or plate
{Multiple balloon catheters}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Occlusion balloons
Surgical occlusion balloons
A61B17/12P4
{Balloon inflating or inflation-control devices}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Intra-arterial balloon pumps
A61M1/10D
Systems for priming balloon catheters
{Making of balloon catheters}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Making of catheters
Method of making a guide wire
Making of surgical instruments
Making of surgical instruments for transferring non-mechanical forms of energy (specific features for such devices, e.g. electrodes, cryotips)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Making of catheters
L29C535/14
Devices for applying a coating
Process for applying a coating
Cutting tools

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

Injection moulding
Extrusion moulding
Blow moulding
Shaping by stretching, e.g. drawing though a die
Shaping of tube ends
Lining or sheathing
Joining (please contact the gérant in this field if a search must be done here)

For a multi-step process:

Producing tubular articles
Special rules of classification within this group

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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Devices for applying a coating
Process for applying a coating
Making of catheters
L29C535/14
Cutting balloons
{Joining of shaft and balloon}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Making of catheters
L29C535/14
Joining
{Making parts for balloon catheter systems, e.g. shafts or distal ends (A61M 25/1029 takes precedence ) }
Definition statement
This subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Production methods of balloon member
{used for angioplasty}
Definition statement
This subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Expandable dilators (e.g. balloons, struts) not used for angioplasty
Special rules of classification within this group

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 within this group

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 subclass/group covers:
  • Balloon catheters for treating bifurcations
  • Other means for treating bifurcations
for temporarily occluding a vessel for isolating a sector
Informative references
Attention is drawn to the following places, which may be of interest for search:
Surgical occlusion balloons
Temporary occlusion for surgery
having detachable or disposable balloons
Informative references
Attention is drawn to the following places, which may be of interest for search:
Stomach balloons for treatment of obesity
having radio-opaque markers in the region of the balloon
Informative references
Attention is drawn to the following places, which may be of interest for search:
Radio-opaque markers on catheters
Radio-opaque markers on guide wires
Radio-opaque markers
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 ( for balloon length adjustment A61M 2025/1068)
References relevant to classification in this group
This subclass/group does not cover:
Sheaths for balloon length adjustment
Stent covering sheaths
K61F2/84B2
having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cutting balloons
Scraping balloon
having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
Informative references
Attention is drawn to the following places, which may be of interest for search:
Cutting balloons
Scraping balloon
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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Implements for holding wounds open
Middle ear drainage
Wound drainage systems (with negative pressure or suction)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Valve means for lumen inflow
A61M25/00T20A1I
Multi-lumen catheters
{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 subclass/group covers:

Implantable drainage tubes, e.g. shunts

References relevant to classification in this group
This subclass/group does not cover:
Intraocular drainage
Anastomosis
{Cerebrospinal drainage; Accessories therefor, e.g. valves}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Subcutaneous access sites for injecting or removing fluids
{pre-shaped, for use in the urethral or ureteral tract}
Definition statement
This subclass/group 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 subclass/group covers:

Dilators, which do not change their shapes

References relevant to classification in this group
This subclass/group does not cover:
Expandable dilators, e.g. balloons not used for angioplasty, struts
Balloon dilators used for angioplasty
Dilators made of swellable material { ( balloon catheters for angioplasty A61M 25/104) }
Definition statement
This subclass/group 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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Introducing or retaining medias in vessels
Introducing or retaining ophthalmic products into the ocular cavities
Feeding devices
Injector for tampons
Tablets, pills
{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 subclass/group covers:
  • Tampons with drug delivery.
  • Electronic pills with drug delivery.
  • Other devices for releasing a drug in a natural cavity.
References relevant to classification in this group
This subclass/group does not cover:
Artificial gland structures or devices
Intra-uterine contraceptive devices
Suppositories or bougies for intra-vaginal or intra-uterine application
Medicinal preparations for sustained or differential drug release
Informative references
Attention is drawn to the following places, which may be of interest for search:
Electronic pills
Endoscopes using self-propulsion, e.g. capsule endoscopes
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 subclass/group covers:
  • Devices only for applying drugs onto the body.
  • Booths for spraying tanning lotions onto the body.
References relevant to classification in this group
This subclass/group does not cover:
Devices for handling toilet or cosmetic substances
Baths
Absorbent pads, e.g. swabs
Salt baths
Informative references
Attention is drawn to the following places, which may be of interest for search:
Spraying apparatus
Coin operated apparatus for spraying fluids
Transdermal patches with drugs
Apparatus for tanning the skin
{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 subclass/group covers:

Handheld devices only for applying drugs onto the body.

References relevant to classification in this group
This subclass/group does not cover:
Aapparatus for iontophoresis
Hand tools for applying fluent material to surfaces, in general
Container closures with pads or like contents-applying means, in general
Hand-held massage devices with liquid delivery
A61H7/00D2B, A61H 2201/105
{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 relevant to classification in this group
This subclass/group does not cover:
Absorbent pads, e.g. swabs, for medical use, in general
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 subclass/group 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 relevant to classification in this group
This subclass/group does not cover:
Reproduction or fertilisation
Iontophoresis or cataphoresis
Salt baths
Syringes
Implantable pumps
Informative references
Attention is drawn to the following places, which may be of interest for search:
Vaccination needles
Acupuncture
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
Informative references
Attention is drawn to the following places, which may be of interest for search:
Ultrasound, e.g. phonophorese
Iontophoresis or cataphoresis
{by using microneedles}
Relationship between large subject matter areas

Please propose the following classes as well:

Drug coated or drug delivering microneedles with specific drugs

Methods for producing microneedles
Relationship between large subject matter areas

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 subclass/group covers:

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

References relevant to classification in this group
This subclass/group does not cover:
Radioactive implants and devices which are used only for implantation of radioactive implants (special sizes, shapes, radiation protection, etc.)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Solid drug implants
Cannula for implanting or removing devices
{Tattooing apparatus ( apparatus for marking animals A01K 11/00 ; vaccine applicators having needles or other puncturing means A61B 17/205) }
Definition statement
This subclass/group covers:
  • Devices for applying permanent tattoos.
  • Devices for applying temporary tattoos.
  • Devices for applying temporary tattoos without using needles, e.g. adhesive tattoos.
References relevant to classification in this group
This subclass/group does not cover:
Apparatus for marking animals
Vaccination needles
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 subclass/group 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 relevant to classification in this subclass
This subclass/group does not cover:
Tracheal tubes (respiratory tubes)
Connecting needles to syringes
Connecting catheter tubes to hubs
Respiratory valves
Vascular valves
Informative references
Attention is drawn to the following places, which may be of interest for search:
Locating means to allow access to septum
Peritoneal dialysis catheter
Tracheotomy devices
Measuring pressure within body
Colostomy devices
Gastrotomy feeding tubes
Cranial plugs
A61B19/00B8
Resheathing means for used needles
Fistulas
Multi-channel connectors in general
Rotating or swivel joints in general
Quick-acting type connectors in general
Swivel nut connector (screw threaded joint) in general
Union screw connector (sealing surfaces pressed together by means of a member) in general
Connecting hose to rigid members in general
Method or apparatus for disinfecting or sterilizing
Regulating valves in infusion systems
Multiway valves in general
Starling valves in general
Tube strippers
Screw clamps in general
Lever clamps in general
Camp clamps in general
Wedge clamps in general
Tube cut-off devices by bending or twisting the tube in general
Special rules of classification within this subclass

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.

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Last Modified: 10/11/2013