Class Definition for Class 604

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CLASS 604,	SURGERY
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SUBCLASSES

[List of Patents for class 604 subclass 1]

SWAB INCLUDING HANDLE (E.G., STICK, ETC.) WITH ABSORBENT MATERIAL AT END THEREOF:

This subclass is indented under the class definition. Subject matter relating to a means for mopping a surface of the body, which means includes a hand gripped element on one end of which is mounted a wad of cotton, a sponge, or like absorbent material.

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600,	Surgery, subclass 572 for means for wiping a body surface to collect material for diagnostic testing.

[List of Patents for class 604 subclass 2]

Body treating material fed to absorbent material:

This subclass is indented under subclass 1. Subject matter wherein body treating material is supplied to the absorbent material from a source.

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305,	for means supplying a body treating material to the external surface of the body from a separate feed source.

[List of Patents for class 604 subclass 3]

Means broken, cut, pierced, or torn to permit flow of material:

This subclass is indented under subclass 2. Subject matter including means on the swab which is fractured, separated by an edged instrument, punctured, or separated by having portions thereof rended apart by pulling in opposite directions for the purpose of allowing flow of body affecting treating material to the swab.

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87,	148, 200, and 306, for all other medicators or aspirators having rupturable, frangible, tearable, or pierceable means to permit material flow.

[List of Patents for class 604 subclass 4.01]

4.01

BLOOD DRAWN AND REPLACED OR TREATED AND RETURNED TO BODY:

This subclass is indented under the class definition. Subject matter relating to a means for removing blood from a person"s body and either returning the same blood, or a constituent thereof, to the body after it has been handled for some purpose, or replacing the drawn blood with new blood or constituent.

(1) Note. For a patent to be classified herein, specific detailed means for attaching the treating means to the patient must be specifically claimed, or the means must include a body sensing or monitoring means which controls the treating means. Likewise for a method to be classified herein, the procedure must include more than nominal connection of the treating means to the patient, such as by reciting specific arteries or veins to be connected or by a specific surgical connection.

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210,	Liquid Purification or Separation, subclass 321.7 for dialysis of blood.
422,	Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, subclasses 44 through 48for blood treating or transfusible devices, (e.g., oxygenators, etc.).
494,	Imperforate Bowl: Centrifugal Separators, subclasses 16 through 21for a separator of that class which includes a plurality of miniature bowls (e.g., test tubes) distributed about a rotatable carrier and readily removable therefrom; prominent in the art of the area (subclasses 16 through 21) are blood centrifuges.

[List of Patents for class 604 subclass 5.01]

5.01

Constituent removed from blood and remainder returned to body:

This subclass is indented under subclass 4.01. Subject matter wherein a portion of the blood, such as an impurity or component, is removed therefrom before the residue is returned to the body.

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210,	Liquid Purification or Separation, subclass 195.2 for a closed circulation system including semipermeable membrane, subclass 645 for process of passing biological fluid such as urine, blood etc., through septum, subclass 767 for separating of liquid-liquid or liquid-solid mixture, and subclass 782 for separating process of blood.
435,	Chemistry: Molecular Biology and Microbiology, subclass 2 for separation or treatment of blood cell.

[List of Patents for class 604 subclass 5.02]

5.02

Pathogenic component removed:

This subclass is indented under subclass 5.01. Subject matter wherein an infectious component (e.g., virus, bacteria, parasite etc.) of the blood is removed from the blood and the uninfected component is returned to the body.

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210,	Liquid Purification or Separation, subclass 764 for process of destroying microorganism in which a living organism is killed.
424,	Drug, Bio-affecting and Body Treating Compositions, appropriate subclass for biocidal composition such as bactericide, fungicide, etc.
435,	Chemistry: Molecular Biology and Microbiology, subclass 7.32 for measurement or test involving bacteria or actinomycetales.

[List of Patents for class 604 subclass 5.03]

5.03

Lipidic material removed:

This subclass is indented under subclass 5.01. Subject matter wherein the component removed from the blood is a fatlike material.

SEE OR SEARCH CLASS:

210,	Liquid Purification or Separation, subclass 651 for removing specified material by filtering through membrane.
436,	Chemistry: Analytical and Immunological Testing, subclasses 13 and 71 for a test for a lipid.

[List of Patents for class 604 subclass 5.04]

5.04

Toxic material removed:

This subclass is indented under subclass 5.01. Subject matter wherein the component removed from the blood is a harmful material (e.g., carbon monoxide, uric acid, acetone etc.).

SEE OR SEARCH CLASS:

210,	Liquid Purification or Separation, subclass 651 for removing specified material by filtering through membrane.

[List of Patents for class 604 subclass 6.01]

6.01

Component of blood removed (i.e., pheresis):

This subclass is indented under subclass 5.01. Subject matter wherein the component removed from the blood is a blood element, per se, such as plasma, leukocytes, erythrocytes or platelets whereafter the remainder is returned to the body.

SEE OR SEARCH CLASS:

210,	Liquid Purification or Separation, subclass 782 for process of separating components of blood, and subclass 646 for hemodialysis.

[List of Patents for class 604 subclass 6.02]

6.02

Erythrocyte:

This subclass is indented under subclass 6.01. Subject matter wherein the component removed from the blood are red blood cells or corpuscles.

SEE OR SEARCH CLASS:

435,	Chemistry: Molecular Biology and Microbiology, subclass 7.25 for measuring or testing process involving erythrocyte.

[List of Patents for class 604 subclass 6.03]

6.03

Leukocyte:

This subclass is indented under subclass 6.01. Subject matter wherein the constituents removed from the blood are white blood cells or corpuscles.

SEE OR SEARCH CLASS:

435,	Chemistry: Molecular Biology and Microbiology, subclass 7.24 for measuring or testing process involving leukocyte.

[List of Patents for class 604 subclass 6.04]

6.04

Plasma:

This subclass is indented under subclass 6.01. Subject matter wherein the component removed from the blood is the fluid portion thereof, i.e., the noncellular part of blood.

SEE OR SEARCH CLASS:

436,	Chemistry: Analytical and Immunological Testing, subclass 16 for blood serum or blood plasma standard or control.

[List of Patents for class 604 subclass 6.05]

6.05

Single needle:

This subclass is indented under subclass 6.01. Subject matter wherein a single blood transfusion needle is used for withdrawing blood from and returning blood to the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52,	for needle means through which material is introduced into or removed from blood vessel.

[List of Patents for class 604 subclass 6.06]

6.06

Arterial and venous needles:

This subclass is indented under subclass 6.01. Subject matter wherein two blood transfusion needles are used, one for withdrawing blood from and the other for returning blood to the body.

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52,	for needle means through which material is introduced into or removed from blood vessel.

6.06

Arterial and venous needles:

This subclass is indented under subclass 6.01. Subject matter wherein two blood transfusion needles are used, one for withdrawing blood from and the other for returning blood to the body.

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52,	for needle means through which material is introduced into or removed from blood vessel.

[List of Patents for class 604 subclass 6.07]

6.07

Anticoagulant added:

This subclass is indented under subclass 5.01. Subject matter wherein a substance is added to the blood to suppress the blood"s coagulation or clotting.

SEE OR SEARCH THIS CLASS, SUBCLASS:

269,	for anticoagulant supply means.

[List of Patents for class 604 subclass 6.08]

6.08

Infrared, visible light, ultraviolet, x-ray or electrical energy applied to blood:

This subclass is indented under subclass 5.01. Subject matter comprising an extracorporeal means for applying infrared, visible light, ultraviolet, x-ray radiation, or magnetic or electric energy to the blood.

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20,	for means for applying infrared, visible light, ultraviolet, x-ray, or electrical energy to body.

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128,	Surgery, appropriate subclass for analogous medical devices.
210,	Liquid Purification or Separation, subclasses 748.01 through 748.2for liquid purification or separation processes utilizing electrical or wave energy directly applied to liquid or material being treated.
250,	Radiant Energy, subclass 432 R for irradiating source or radiating fluent material.
606,	Surgery, subclass 2.5 for subject matter relating to removal of a calculus (e.g., stone) from the body wherein the calculus is fractured or disintegrated by use of light energy.
607,	Surgery: Light, Thermal, and Electrical Application, subclass 100 for electromagnetic radiation, and subclass 154 for high frequency radiation type.

[List of Patents for class 604 subclass 6.09]

6.09

Filter means:

This subclass is indented under subclass 5.01. Subject matter comprising passing the blood through a porous article or mass in order to separate some constituent therefrom.

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252,	for a porous article or mass through which the material passes to separate some constituent therefrom, and subclass 406 for filter or series thereof for liquid entering or leaving container.

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210,	Liquid Purification or Separation, subclass 216 for filter medium.

[List of Patents for class 604 subclass 6.1]

6.1

Valve means:

This subclass is indented under subclass 5.01. Subject matter using a means for regulating or restricting flow of blood into or out of the body.

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9,	for devices transferring fluids from within one area of body to another with flow control means, and subclass 236 for material flow controlled by valve.

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137,	Fluid Handling, subclasses 247 through 254for liquid valves.

[List of Patents for class 604 subclass 6.11]

6.11

Pumping means:

This subclass is indented under subclass 5.01. Subject matter wherein the blood is forced into or out of the body by means of a device which transfers blood from one place to another through tubes or similar conduits.

SEE OR SEARCH CLASS:

261,	Gas and Liquid Contact Apparatus, subclass 24 for gas and liquid pumping means.
415,	Rotary Kinetic Fluid Motors or Pumps, subclass 900 for rotary blood pump.

[List of Patents for class 604 subclass 6.12]

6.12

Injector or aspirator syringe supported only by person during use:

This subclass is indented under subclass 6.11. Subject matter comprising a means for forcing blood into or aspirating blood from the body, which means is entirely supported by the body during the injection or removal of said blood.

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123,	and 187 for pump injection device.

[List of Patents for class 604 subclass 6.13]

6.13

Heating or cooling means:

This subclass is indented under subclass 5.01. Subject matter comprising a means for raising or lowering the temperature of the blood.

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113,	for means for cooling or heating the body.

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204,	Chemistry: Electrical and Wave Energy, subclass 262 for electrolytic cells provided with a heating or cooling means.

[List of Patents for class 604 subclass 6.14]

6.14

Oxygenating means:

This subclass is indented under subclass 5.01. Subject matter utilizing a means for infusing the blood with oxygen.

SEE OR SEARCH CLASS:

422,	Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, subclass 45 for blood treating device for transfusible blood having means for extracorporeal oxygenation of blood.

[List of Patents for class 604 subclass 6.15]

6.15

Blood collection container:

This subclass is indented under subclass 4.01. Subject matter comprising a receptacle adapted for dispensing, holding or storing blood.

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403,	for container for blood or body treating material, or means used therewith.

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128,	Surgery, subclasses 760 through 771for liquid reservoirs.
588,	Hazardous or Toxic Waste Destruction or Containment, subclass 258 for storage to contain pathogenic organism.

[List of Patents for class 604 subclass 6.16]

6.16

Body inserted tubular conduit structure:

This subclass is indented under subclass 4.01. Subject matter wherein a pipelike or hollow structure is introduced into the body and utilized solely to introduce blood into or withdraw blood from the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264,	for body inserted tubular conduit structure such as needles, cannulas, nozzles, trocars, catheters, etc.

7	BLOOD TRANSFERRED BETWEEN DIFFERENT BODIES ALONG CONTINUOUS FLOW PATH (E.G., TRANSFUSION, ETC.):
	This subclass is indented under the class definition. Subject matter relating to a means for drawing blood from one person"s body and introducing it into another"s body by flow along an uninterrupted flow path, such as through a conduit the ends of which are respectively inserted in blood vessels of a donor and donee.

[List of Patents for class 604 subclass 8]

DEVICES TRANSFERRING FLUIDS FROM WITHIN ONE AREA OF BODY TO ANOTHER (E.G., SHUNTS, ETC.):

This subclass is indented under the class definition. Devices relating to a means, usually a conduit, for moving or diverting fluid materials from within one area of the body to a separate area within the same body usually when the natural body apparatus for accomplishing this purpose has failed or become damaged.

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175,	for devices securing implanted conduits in or on the body.
264+,	for other body inserted conduits.

[List of Patents for class 604 subclass 9]

With flow control means (e.g., check valves, hydrocephalus pumps, etc.):

This subclass is indented under subclass 8. Subject matter including means to regulate the rate, direction, and pressure of flow within the transferring conduit.

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247,	for fluid responsive means mounted in other devices for controlling flow into or out of the body.

[List of Patents for class 604 subclass 10]

With antisiphon means:

This subclass is indented under subclass 9. Subject matter wherein vacuum breaking means is provided in the conduit to prevent surges in the conduit caused by sudden changes in a person"s body position, such as by suddenly rising to a standing position from a supine position.

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129,	for siphon devices having vacuum breaking means (e.g., vent, etc.) used to introduce or remove fluids into or out of the body.

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137,	Fluid Handling, subclass 215 for details of antisiphoning devices of general utility.

[List of Patents for class 604 subclass 11]

MEANS FOR INSERTING FIBROUS OR FORAMINOUS RESIDENT PACKING, RECEPTOR, OR MEDICAMENT CARRIER INTO BODY ORIFICE:

This subclass is indented under the class definition. Subject matter relating to a device used to place into a body opening a material which is formed of filaments or which includes numerous holes, pores, or interstices, the material serving to conform to the shape of the opening, absorb fluid therein, or bring a body treating material into contact with the wall thereof.

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358+,	for absorbent internal pads.
904,	for tampons.

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401,	Coating Implements With Material Supply, appropriate subclasses for applicators of general utility.

[List of Patents for class 604 subclass 12]

With lubricating means:

This subclass is indented under subclass 11. Subject matter wherein the insert means carrying the packing, receptors, or medicament is provided with means to ease or facilitate insertion into the body.

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172,	and 265, for surgical conduits with lubricating means.
363,	for lubricated tampons.

13	With means for ejecting continuous length insert (e.g., gauze packing):
	This subclass is indented under subclass 11. Subject matter wherein the inserting means includes means for supplying a continuous length of packing material into the insertion means.

14	Distal portion of inserting means deformed, expanded, or ruptured to permit passage of insert therefrom:
	This subclass is indented under subclass 11. Subject matter wherein the portion of the material inserting device inserted into the body opening is bent out of shape, unfolded, or burst to release the material into the opening.

15	With slidable ejector (e.g., plunger or ram, etc.) inside tubular inserting means:
	This subclass is indented under subclass 11. Subject matter wherein the means for ejecting the insert includes a plunger or piston slidably mounted inside a tubular holder.

[List of Patents for class 604 subclass 16]

Ejector moved into operating position from stored location within or alongside inserting means:

This subclass is indented under subclass 15. Subject matter wherein the plunger or ram which is initially stored in a position inside or alongside the tubular inserting means, is moved into alignment with the inserting means for ejection of the contents.

(1) Note. Patents in this subclass and the subclass indented thereunder are intended to reduce the overall length of the ejector and insert means such that the two elements together have a combined length no greater than that of a single element alone.

[List of Patents for class 604 subclass 17]

Ejector pivoted or swung into operating position:

This subclass is indented under subclass 16. Subject matter wherein the plunger or ram is turned or swiveled about an axis into alignment with the inserting means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

233,	for piston actuator pivoted for injection syringe.

[List of Patents for class 604 subclass 18]

Tubular inserting means releasably interlocked with ejector:

This subclass is indented under subclass 15. Subject matter wherein the plunger or ram is maintained in a secured but disengageable relationship with the tubular inserting means prior to ejection of contents so that the plunger or ram will not be inadvertantly moved until ejection is desired.

SEE OR SEARCH THIS CLASS, SUBCLASS:

220,	for means preventing accidental displacement of piston or handheld syringe.

[List of Patents for class 604 subclass 19]

MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.):

This subclass is indented under the class definition. Subject matter including means for conducting body treating material into or out of a body or to or from the external membrane tissue surface of a body to treat said body.

(1) Note. It is to be noted that many devices will include conduits for conducting the material into or out of the body, however, some devices may be merely placed over a body opening to place material in or receive material from the body. An example of the latter form would be nose douches, wherein no tube extends into the nasal passages, but where material may be flushed into the nares and the discharge therefrom received in the device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27+,	for devices and methods for material introduction into and removal from the body through passages in the device.
48+,	for introduction into or removal from within the body of therapeutic material.
93.01+,	for devices for material introduction into or removal from within the body by means of a conduit, holder, or implanted reservoir inserted into the body.
289+,	for devices and methods for material application and/or removal from external surface of body.
500+,	for methods for material introduction into or removal from within the body.
890.1+,	which provides for a device or system comprising a reservoir and control, pump, or controllable valve means for dispensing a drug to a living body which device is implanted in the body.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 127+ for subject matter relating to removal of a calculus (e.g., stone) from the body.

[List of Patents for class 604 subclass 20]

Infrared, visible light, ultraviolet, X-ray, or electrical energy applied to body (e.g., lontophoresis, etc.):

This subclass is indented under subclass 19. Subject matter combined with means for applying infrared, visible light, ultraviolet, X-ray, or electrical energy to body.

SEE OR SEARCH CLASS:

128,	Surgery, appropriate subclasses for analogous medical devices.
606,	Surgery, subclass 2.5 for subject matter relating to removal of a calculus (e.g., stone) from the body wherein the calculus is fractured or disintegrated by use of light energy.

[List of Patents for class 604 subclass 21]

With tubular injection means inserted into body:

This subclass is indented under subclass 20. Subject matter including a tubular means which is placed in the body for injecting material thereinto.

(1) Note. The tubular means placed in the body includes needles, catheters, nozzles, and similar devices.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.01+,

and 264+, for specific body inserted conduit structure.

[List of Patents for class 604 subclass 22]

With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue:

This subclass is indented under subclass 19. Subject matter wherein the means for introducing or removing material is provided with means to penetrate body tissue to cut said tissue, scratch said tissue, or to move said tissue up and down quickly and repeatedly.

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46+,	for cutters and scarifiers wherein a medicament (e.g., vaccine, etc.) is coated thereon for introduction into the body by scratching the skin.

[List of Patents for class 604 subclass 23]

Gas application:

This subclass is indented under subclass 19. Subject matter for injecting a body treating material in the form of gas into the body or for the application of said gas against the body.

(1) Note. The gas application here is for other than breathing.

[List of Patents for class 604 subclass 24]

Gas mixed with other material:

This subclass is indented under subclass 23. Subject matter wherein the treating gas is mixed with another material before injection in or application onto the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56,	for methods of mixing of liquids and solids.
82+,	for devices for mixing liquids and solids.

25	Ozone:
	This subclass is indented under subclass 23. Subject matter wherein the gas applied to body is ozone.

[List of Patents for class 604 subclass 26]

Gas injection into body canal or cavity:

This subclass is indented under subclass 23. Subject matter for injecting the treating gas into a body canal or cavity.

(1) Note. Canal or cavity includes blood vessels as well as other body cavities such as the pleural cavity.

[List of Patents for class 604 subclass 27]

Material introduced into and removed from body through passage in body inserted means:

This subclass is indented under subclass 19. Subject matter including a body entering means having a channel or channels formed therein for conducting a body treating material into and out of a body.

(1) Note. Obviously many devices for forcing fluid into the body (e.g., a piston type hypodermic syringe) can be used to both inject material into and draw material from the body. To be classifiable in this subclass, a patent must claim separate passages for both injecting and withdrawing material, or must claim injection and withdrawal through a single passage.

[List of Patents for class 604 subclass 28]

Method:

This subclass is indented under subclass 27. Subject matter including processes wherein the body treating material enters and leaves the body through a channel or channels in a device inserted in a body.

(1) Note. To be classifiable in this subclass, a patent must claim the process of both injection and withdrawal of fluent material.

[List of Patents for class 604 subclass 29]

Peritoneal dialysis:

This subclass is indented under subclass 27. Subject matter relating to means for conducting the body treating material into and out of the visceral containing cavity defined by the peritoneal membrane for the purpose of osmotically removing body waste materials.

SEE OR SEARCH CLASS:

210,	Liquid Purification or Separation, subclasses 321.6+ for hemodialysis apparatus.

[List of Patents for class 604 subclass 30]

Flow control:

This subclass is indented under subclass 27. Subject matter including means for varying the amount or rate of body treating material entering and leaving a body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

65+,	for condition responsive flow control means.
236,	for material flow control means associated with hand or body supported injectors.
246+,	for means for metering or regulating flow of material to or from the body.
254,	for a float type flow control device associated with a drip meter.

[List of Patents for class 604 subclass 31]

By self-acting means or condition responsive sensor:

This subclass is indented under subclass 30. Subject matter wherein the flow of the body treating material into and out of the body is arrested by a means not requiring any action by a person or by a detector means responsive to some variable in the body or the flow control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

65+,	for similar devices controlling flow of a body effecting agent into or out of the body by condition responsive sensor.
245+,	for devices terminating flow into or out of the body by self-acting means.

[List of Patents for class 604 subclass 32]

Rotary valve:

This subclass is indented under subclass 30. Subject matter including a rotatable type valve for controlling the flow of the body treating material into and out of a body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

248,	for flow control device for injecting material into or out of the body as by a rotatable valve.

[List of Patents for class 604 subclass 33]

Slide or reciprocating valve:

This subclass is indented under subclass 30. Subject matter including a longitudinally movable element whose linear movement controls flow of a body treating material into and out of a body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249,	for slide or reciprocating valves on metering devices for controlling flow into or out of the body.

[List of Patents for class 604 subclass 34]

Deformable occluding tube valve:

This subclass is indented under subclass 30. Subject matter including pinch type tube valves which when squeezed deformably occlude resilient passage walls to control flow of a body treating material into and out of a body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250,	for occluder type pinch valves for controlling flow into or out of the body.

[List of Patents for class 604 subclass 35]

With aspirating or vacuum removing means:

This subclass is indented under subclass 27. Subject matter including means to initiate the evacuation of body treating material from the body by means of suction producing mean located in the outlet channel or passage in the body inserted means.

(1) Note. For a patent to be classified in this subclass, the suction causing means must be claimed as being within the discharge passage, per se.

SEE OR SEARCH THIS CLASS, SUBCLASS:

128+,

for siphon devices used to remove material from a reservoir or the body.

[List of Patents for class 604 subclass 36]

Means moved by person to introduce and remove material:

This subclass is indented under subclass 27. Subject matter including means manually actuated by an operator to force the body treating material into, and draw it out of, the body.

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181+,

for structure of devices moved by person to force material into or out of body.

[List of Patents for class 604 subclass 37]

Hand-supported squeeze bulb:

This subclass is indented under subclass 36. Subject matter wherein the means is a resilient deformable handheld bulb pump which is actuable to force the body treating material into and out of the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

185,	212+ and 217, for other handheld squeeze bulb devices for injecting or removing material from the body.

[List of Patents for class 604 subclass 38]

Piston:

This subclass is indented under subclass 36. Subject matter wherein the means is a ram or plunger which is reciprocated back and forth to alternately force in and withdraw the body treating material to and from the body.

(1) Note. Blood "telltale" syringes are not classifiable herein since the withdrawal of material (blood) in that instance is merely for testing for the presence of said material and not for the purpose of removing it, per se.

SEE OR SEARCH THIS CLASS, SUBCLASS:

218+,

and 900, for piston structure of hand held injectors, including those having blood "telltale" aspirating means.

[List of Patents for class 604 subclass 39]

Structure of douche nozzle having separate ingress and egress passages therein:

This subclass is indented under subclass 27. Subject matter wherein significance is attributed to conduit means which is formed with separate channels for leading the body treating material into and conducting it from the body, the means having specific configuration or component for use in irrigating a body orifice such as the rectum or vagina.

(1) Note. A patent is classified as a original in this subclass only if it includes the recitation of structural details of a douche nozzle as part of the claimed subject matter.

SEE OR SEARCH THIS CLASS, SUBCLASS:

275,	for nozzles used for insertion into a body orifice wherein material is either introduced into the body or removed therefrom.

[List of Patents for class 604 subclass 40]

With telescoping movement between ingress and egress passages:

This subclass is indented under subclass 39. Subject matter including slidable ingress and egress channel members which are axially movable within one another.

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158+,

and 164+, for body inserted conduits having members slidably mounted with respect to one another.

[List of Patents for class 604 subclass 41]

With body orifice occluding means:

This subclass is indented under subclass 39. Subject matter wherein the body inserted conduit includes an enlarged member carried on the external surface of said conduit which closes off or occludes the body orifice into which the conduit is inserted to prevent the escape of the body treating material from the orifice except by the provided egress passage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278,	for occluder structure on nozzles for injecting or removing material into or out of the body.

42	Axially adjustable:
	This subclass is indented under subclass 41. Subject matter wherein the enlarged member is axially movable along the length of the nozzle surface so that the position of the occluding means can be varied to seal the body opening at different depths of insertion of the nozzle.

43	Body inserted conduit with separate ingress and egress passages:
	This subclass is indented under subclass 27. Subject matter wherein the body inserted conduit comprise separate and distinct channels or lumens, one of which is the introducing passage and the other is the discharge passage.

[List of Patents for class 604 subclass 44]

Having body piercing means:

This subclass is indented under subclass 43. Subject matter wherein one of the lumened conduits is provided with a sharpened needle tip or point enabling the device to pierce directly into the tissue.

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272+,

for single passage conduits with tissue piercing points.

[List of Patents for class 604 subclass 45]

Having air or gas venting passage:

This subclass is indented under subclass 43. Subject matter wherein one of the channels or lumens is a passage for introducing gas or air into the body.

(1) Note. Devices for introducing air or gas only into the conduit, usually for cleaning, are classified in this class, subclasses 266+. To be classifiable in this subclass, a patent must claim that one of the passages is for gas or air venting into or from body, usually for preventing collapse of body member about the conduit.

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266+,

for conduits having means for admitting air or suction into the tube interior only.

[List of Patents for class 604 subclass 46]

Treating material introduced into body by contact with wound formed therein by solid scarifier, cutter, or the like (e.g., scratching skin with vaccine coated needle, etc.):

This subclass is indented under subclass 19. Subject matter relating to a solid element for scratching, puncturing, or otherwise opening body tissue so that a body treating material can be placed in a wound formed thereby.

(1) Note. Hollow needles or puncturing elements are not included in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

22,	for devices for introducing and/or removing material into or from the body by use of a scarifier or cutter without treating material thereon.

[List of Patents for class 604 subclass 47]

With separate applicator for material or separate holder for material placed on applicator or in wound:

This subclass is indented under subclass 46. Subject matter including: a separate means for holding a body treating material that is placed on the body tissue opening device; a separate means for applying a body treating material to the skin opening device; or a separate means for applying a body treating material to a wound made by the body tissue opening device.

(1) Note. The separate means disclosed in the patents in this subclass include a reservoir holding a liquid vaccine in which a needle is dipped before insertion of said needle into the skin; a wick arranged to drip a liquid vaccine onto the blade used to penetrate and cut the skin; and a brush used to apply liquid vaccine to that portion of the skin scratched by a needle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+,	for swabs applying medicament to skin.

[List of Patents for class 604 subclass 48]

Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin:

This subclass is indented under subclass 19. Subject matter wherein a body treating material is placed into or removed from a body opening, or is placed under the external membraneous tissue covering the body or removed therefrom other than by being applied to the skin and permeating therethrough.

(1) Note. Insertion of material under an eyelid is not considered as insertion into body.

(2) Note. Conduits which are provided with plural outlet apertures are not considered to be sprayers when placed in a body orifice since the wall of the conduit contacts the wall of the orifice which prevents the spraying function. However, if such a conduit is provided with a guard spaced outwardly from the wall of the conduit so that fluid issues form a plurality of apertures formed in the conduit, then the arrangement permits spraying even when the conduit is inserted in a body orifice because the guard keeps the conduit spaced from the wall of the body orifice, and such sprayers are classified in Class 128 in appropriate subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+,	for swabs used to apply a medicament on or in the body.
299+,	for devices used to apply or remove material to or from an external surface of the body.

SEE OR SEARCH CLASS:

600,	Surgery, subclass 572 for means used to wipe or dab a surface of the body to collect material for diagnostic purposes.

[List of Patents for class 604 subclass 57]

Means for placing solid treating material in body:

This subclass is indented under subclass 48. Subject matter relating to a device having means for placing a body treating material in solid form in the body.

(1) Note. Included in this subclass are suppositories comprising a solid mass of body treating material and a means connected thereto for use in inserting the mass into a body orifice, e.g., a handle having one end fixed to a plug of treating material that is inserted by means of the handle into a body orifice. However, a mere holder for solid treating material which is inserted in the body, such as a perforated casing holding a solid treating material meltable or dissolvable when placed in a body orifice, is classifiable in other appropriate subclasses in this class, e.g., subclasses 285+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

285+,	for a suppository consisting of solid meltable or dissolvable material.
309,	for solid body treating material applied to an external surface of the body.

58	Powder dispenser:
	This subclass is indented under subclass 57. Subject matter wherein the solid body treating material placed in the body is particulate in form.

[List of Patents for class 604 subclass 59]

Means for ejecting solid from holder:

This subclass is indented under subclass 57. Subject matter wherein additional means are provided to expel the body treating material from the device in which it is retained.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11+,	for devices for inserting solid fibrous members into a body orifice.

60	Solid ejected from body inserted conduit:
	This subclass is indented under subclass 59. Subject matter wherein the solid body treating material is expelled from a tube type element that is inserted into the body.

Eject means moved by force applied to trigger associated with pistol grip:

This subclass is indented under subclass 60. Subject matter wherein the material expelling means is driven by force exerted on an actuator element associated with a pistol type hand grip.

SEE OR SEARCH THIS CLASS, SUBCLASS:

223,	for other injectors having pistol grip structure.

62	Solid units successively fed to conduit from supply means (e.g., magazine, etc.):
	This subclass is indented under subclass 60. Subject matter wherein units of the solid treating material are consecutively introduced into the tube type element from a source connected therewith.

63	Eject means driven by spring:
	This subclass is indented under subclass 60. Subject matter wherein the material expelling means is driven by force exerted by an elastic body which recovers its original shape when released after having been distorted.

64	Solid loaded into injector through opening in side wall of plunger housing:
	This subclass is indented under subclass 60. Subject matter wherein a solid body treating material is placed in an inserting device through a wall opening intermediate the ends of a casing through which the injector means moves to expel the agent therefrom.

[List of Patents for class 604 subclass 65]

Material flow varying means controlled by condition responsive sensor:

This subclass is indented under subclass 48. Subject matter including an apparatus for changing the amount or rate of body treating material entering or leaving the body, and a detector means which senses a change in some variable and in response to said change controls the operation of the apparatus and thereby the amount or rate of material entering or leaving the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

31,	for apparatus sensing flow into and out of body in response to body condition.
50,	for methods of controlling amounts or rate of flow into or out of the body in response to sensed condition.
245,	for devices self-terminating flow to or from body.

[List of Patents for class 604 subclass 66]

Sensor responsive to body condition:

This subclass is indented under subclass 65. Subject matter wherein the detector senses a change in condition of the body and changes the rate of flow into or out of the body in response thereto.

(1) Note. Changes in body condition include an increase in the pulse rate or the temperature of the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

503+,

for introduction of therapeutic materials in response to changes in body conditions.

67	Sensor controls pump, motor, or pressure driven means:
	This subclass is indented under subclass 65. Subject matter wherein the flow varying means is a pump, motor, or pressure driven means responsive to the condition detected.

[List of Patents for class 604 subclass 68]

Needleless hypodermic injector:

This subclass is indented under subclass 48. Subject matter wherein a body treating material is forced through the skin without the use of a piercing conduit or needle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

131+,

for devices for automatically forcing material into the body through piercing conduits.

69	Material expelled from injector by explosive charge:
	This subclass is indented under subclass 68. Subject matter wherein the body treating material is ejected from the injector by an explosive charge.

[List of Patents for class 604 subclass 70]

Material expelled from injector by pressurized fluid:

This subclass is indented under subclass 68. Subject matter wherein the body treating material is propelled by a fluid under pressure, either by direct application of the pressure against the material or by application of the pressure against a means which forces the material from the injector or reservoir.

SEE OR SEARCH THIS CLASS, SUBCLASS:

140+,

149 and 150, for injectors driven by fluid pressure, both direct and indirect.

71	Multidose type:
	This subclass is indented under subclass 68. Subject matter wherein plural doses of the body treating material are either sequentially or simultaneously fed into the injector for injection of measured doses into the body.

[List of Patents for class 604 subclass 72]

Structure of material reservoir replaceably held in injector:

This subclass is indented under subclass 68. Subject matter wherein significance is attributed to the details of structure of a treating material container or cartridge which is replaceably mounted in the needleless injecting means.

(1) Note. A patent is classified as an original only if it includes the recitation of structural details of a medicament reservoir as a part of the claimed subject matter.

[List of Patents for class 604 subclass 73]

Means forceably introducing or removing material from body orifice or wound:

This subclass is indented under subclass 48. Subject matter including means for either manually or automatically thrusting the body treating material into or out of a body orifice or wound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

131+,	for devices forcing material into or out of the body through a tubular conduit by means of fluid pressure, motor-driven, or mechanical energy storing means.
181+,	for devices manually operated to force material into or out of the body through a conduit.

[List of Patents for class 604 subclass 74]

Lacteal extractors (e.g., breast pump, etc.):

This subclass is indented under subclass 73. Subject matter wherein the means for removing material from the body is a breast engaging means, usually in the form of a cup, which includes suction producing means for aspirating lacteal material from within the body by suction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

313+,

for devices removing material from the external body surface by suction.

[List of Patents for class 604 subclass 75]

With collapsable bulb means:

This subclass is indented under subclass 74. Subject matter wherein the suction producing means is a squeeze bulb.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212+,

and 316, for other squeeze bulb devices used to introduce or remove material to or from the body.

76	With suction generated orally by person or user:
	This subclass is indented under subclass 74. Subject matter wherein the suction producing means is a tube extending from the breast engaging cup which tube is engaged by the mouth a person or user to generate the suction.

[List of Patents for class 604 subclass 77]

Structure of means contacting portion of head (e.g., tongue, etc.) during placement of treating material in mouth or throat:

This subclass is indented under subclass 48. Subject matter where significance is attributed to configuration, structure, or components for engaging part of the head of the user for introducing a body treating material into the oral cavity or esophagus of the user.

(1) Note. A patent is classified as an original in this subclass only if it includes the recitation of structural details of a head contacting means as a part of the claimed subject matter. Patents claiming only body nourishment are not classifiable herein, as for example, nursing bottles for infants.

SEE OR SEARCH CLASS:

215,	Bottles and Jars, subclass 11.1 for nursing bottles and nipples.

[List of Patents for class 604 subclass 78]

Drinking cup:

This subclass is indented under subclass 77. Subject matter wherein the configuration, structure, or arrangement of components are in the form of a container having an open end for holding a body treating material to be introduced into the oral cavity of the user.

(1) Note. The body affecting agent may be a liquid or a liquid combined with a solid such as a pill or tablet.

[List of Patents for class 604 subclass 79]

Means for engaging head to hold feed device in mouth:

This subclass is indented under subclass 77. Subject matter wherein a harness, framework, or other means is provided which contacts a person"s head to position a body treating material supply means in the oral cavity of the user.

SEE OR SEARCH THIS CLASS, SUBCLASS:

174+,

for devices for securing body inserted tubes onto patient.

[List of Patents for class 604 subclass 80]

Gravity feed to body from plural material reservoirs:

This subclass is indented under subclass 48. Subject matter wherein the body treating material flows under the influence of gravity from multiple storage sources to one or more persons.

(1) Note. The plural material reservoirs may supply one or more persons with body affecting material from one or more conduits placed in one or more places.

[List of Patents for class 604 subclass 81]

With self-acting sequential flow from reservoirs:

This subclass is indented under subclass 80. Subject matter wherein the body treating material enters the body after flowing first from one storage source and thereafter continuously from a second or third source without pause after flow from said first storage source has terminated, said separate serial flow sources controlled by means not requiring any intervention by a person.

SEE OR SEARCH CLASS:

137,	Fluid Handling, subclasses 109+ for self-controlled branched flow systems of general utility.

[List of Patents for class 604 subclass 82]

Means for intermixing liquid with solid or different liquid:

This subclass is indented under subclass 48. Subject matter including an apparatus for blending together a liquid with a solid material, or a liquid with another liquid of a different kind.

SEE OR SEARCH THIS CLASS, SUBCLASS:

56,	for a method of mixing liquid with a solid material or a different liquid.
416,	for materials mixed within a medical container.

83	Treating material introduced directly into liquid stream path:
	This subclass is indented under subclass 82. Subject matter wherein a body treating material is injected directly into a flowing liquid, usually a confined stream, which blends and carries the mixture to the person.

84	Solid treating material:
	This subclass is indented under subclass 83. Subject matter wherein the body treating material is in the form of a dissolvable or suspended solid.

85	Liquid stream passes through reservoir containing treating material:
	This subclass is indented under subclass 83. Subject matter wherein the liquid stream receives the body treating material to be mixed therewith by passing through a reservoir containing the body treating material.

[List of Patents for class 604 subclass 86]

Septum pierced by conduit:

This subclass is indented under subclass 83. Subject matter wherein the body treating material is introduced into the liquid stream through a wall which is pierced by a wall piercing conductor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88,	148, 201+, 244, and 415, for piercable septum structure on other medical devices.

[List of Patents for class 604 subclass 87]

Means broken, cut, pierced, or torn to permit mixing:

This subclass is indented under subclass 82. Subject matter including an element which is fractured, separated by an edged instrument, punctured by some means, or separated by having portions thereof rended apart by pulling for the purpose of bringing the liquids and a solid material, together for blending.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3,	200, and 306, for means, broken, cut, pierced, or torn to permit flow of treating material to the body.

[List of Patents for class 604 subclass 88]

Septum:

This subclass is indented under subclass 87. Subject matter wherein a separating wall is punctured by a pointed element such as a hollow needle to permit mixing of the separated liquids.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201,	for a septum pierced by a conduit to permit flow of treating material to the body.

89	Closure or barrier between compartments moved to permit mixing:
	This subclass is indented under subclass 82. Subject matter including a sealing element which is displaced from its sealing position between separate storage spaces to permit flow of a material therebetween for the purpose of blending or, in the case of a solid in a liquid.

[List of Patents for class 604 subclass 90]

Closure moved, expanded, or flexed by force transmitted by liquid:

This subclass is indented under subclass 89. Subject matter wherein the sealing means is displaced, expanded, or flexed to permit mixing by pressure exerted by a liquid which itself has been subjected to a force to permit mixing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

150,	for devices expelling material therefrom by means of a liquid.

91	Closure moved by relative movement between closure and separate protruding member:
	This subclass is indented under subclass 89. Subject matter wherein the sealing means is displaced by a protruding rod or member which is moved into contact with the sealing means by relative movement therebetween to permit mixing between compartments.

[List of Patents for class 604 subclass 92]

Solid dissolved in liquid:

This subclass is indented under subclass 82. Subject matter wherein a solid material blends with a liquid by passing into solution or suspension therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

84,	for a device in which a solid material is injected into a stream of liquid to dissolve therein.

93.01

Material introduced or removed through conduit, holder, or implantable reservoir inserted in body:

This subclass is indented under subclass 48. Subject matter wherein the body treating material is placed in or removed from the body by (a) a tubular conduit having a bore or lumen hole extending therethrough, (b) transfer to or from a retaining means located on an implement placed in the body, or (c) by release or collection from a storage container surgically implanted in the body.

(1) Note. The body affecting or treating material usually is placed in or removed from the body by means of a catheter, needle, a rod having a medicament carried thereon (a holder), or from a tube having one closed end located outside the body and an open end located within the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57+,	for means for placing solid treating material in body.
84,	for solid treating material which is in the form of a dissolvable or suspended solid.
280+,	for flexible catheter to be inserted within a body passage, vessel, or cavity to feed a body treating material thereto, or remove the material therefrom.
317+,	for means collecting waste fluid from the body for nonsampling purposes.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 760 for device for collecting liquid from the body.
206,	Special Receptacle or Package, subclasses 364+ for receptacles for holding syringes for drawing liquid from the body.

94.01

Dual nozzles for insertion into paired body orifices (e.g., nasal passages, etc.):

This subclass is indented under subclass 93.01. Subject matter having two tubular conduits insertible in two complementary body openings.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 206.11 for device having tubular means inserted into an air passage of the nose; and subclass 207.18 for respiratory gas supply means entering nasal passage.

95.01

Conduit with self-propelled or remote control means:

This subclass is indented under subclass 93.01. Subject matter wherein the tubular conduit has means providing self advancement of the conduit into tortuous areas of the body, or means manipulated external to the body for guiding the conduit through a body cavity or passage.

SEE OR SEARCH CLASS:

606,	Surgery, subclass 194 for conduit with means for applying pressure to the internal wall of blood vessel.

95.02

Having port to expel fluid into body to propel conduit:

This subclass is indented under subclass 95.01. Subject matter wherein the tubular conduit includes at least one orifice in the wall thereof extending backwardly at an angle to the axis of the conduit through which the fluid is discharged against the wall of the body conduit or orifice for forcibly advancing the body entering conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

275,	for conduit with distal end which forms discharged opening.

95.03

Having flexible member (e.g., bellow, balloon, etc.) to propel conduit:

This subclass is indented under subclass 95.01. Subject matter wherein the tubular conduit includes a elastomeric member (e.g., bellow, balloon etc.) located at or near the distal end and activated by the supply or withdrawal of fluid to advance the distal end through a tortuous path.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104+,

for expansion means actuated by axially movable member.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 203.28 for expandable means in the form of a bellow member; and subclass 768 for flexible collection tube having bellow member.

95.04

Having tensioning means to alter conduit shape:

This subclass is indented under subclass 95.01. Subject matter including a deflection configuration control means running from the proximal end of the conduit to the vicinity of the distal end thereof and reciprocally slidable therein for drawing the distal end toward the proximal end or for releasing the distal end to its original unstressed shape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280+,

for bendable catheter structure.

SEE OR SEARCH CLASS:

128,	Surgery, subclasses 656+ and 772 for flexible catheter having pull wire for advancing its distal end.

95.05

Having remote control for applying light, electricity, or heat to alter conduit shape (e.g., shape memory alloy, etc.):

This subclass is indented under subclass 95.01. Subject matter which includes a hand held manipulator for applying electromagnetic radiation, electrical voltage, or thermal energy to modify the configuration of the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281,	for remote control of shape memory catheter.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 657 for guide means with remote control to advance the catheter; and subclass 772 for flexible catheter with guide means.

96.01

Having means inflated in body (e.g., inflatable nozzle, dilator, balloon catheter, occluder, etc.):

This subclass is indented under subclass 93.01. Subject matter including an inflatable means carried by the conduit or holder which is expanded by a fluid such as air while disposed within the body for the purpose of retaining the conduit, dilating the body opening, or sealing the body opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101.01+,

for plural inflatable means on the same conduit.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 191+ for internal pressure applicator with inflatable or expandable means.

97.01

Including means forcing inflation fluid into inflatable means:

This subclass is indented under subclass 96.01. Subject matter wherein means are actuated to pressurize the inflatable means within the body conduit or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

36,	for means forcing inflation fluid operated by person.

97.02

Injector type:

This subclass is indented under subclass 97.01. Subject matter wherein the fluid forcing means comprises a plunger slidably mounted within a cylinder body to provide pressurized inflation fluid into the retention balloon to inflate it.

SEE OR SEARCH THIS CLASS, SUBCLASS:

187,	for hand held hypodermic syringe or douche tube with forced injection.

SEE OR SEARCH CLASS:

433,	Dentistry, subclass 90 for plunger type ejector.

97.03

Having indicator means:

This subclass is indented under subclass 97.02. Subject matter wherein the injector syringe includes means indicating the degree of inflation within the inflated means while inserted in the cavity, orifice or conduit of the body.

SEE OR SEARCH CLASS:

73,	Measuring and Testing, subclasses 700+ for fluid pressure gauge.
128,	Surgery, subclass 748 for means for measuring fluid pressure in body.

98.01

Pressurized inflation means:

This subclass is indented under subclass 97.01. Subject matter wherein means for pressurizing the inflatable means is a fluid source under pressure which, upon release, inflates the inflatable means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

23+,	for means to inject or apply pressurized gas.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 200.26 for means placed in body opening to facilitate insertion of breathing tube.

98.02

Compressible bulb:

This subclass is indented under subclass 98.01. Subject matter wherein the means for providing pressurized fluid to the inflatable means comprises a generally rounded body which is compressed to inflate the inflatable means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217,	for squeeze bulb which pressurizes fluid reservoir.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 200.22 for squeeze bulb which sprays aspirating medicament.

99.01

Having inflation or deflation control means:

This subclass is indented under subclass 96.01. Subject matter wherein the inflatable means is provided with a means for limiting the inflation of or controlling the amount of deflation of the inflatable means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

208+,	for piston controlling means.
224,	for screw or rack means which controls the piston motion.

SEE OR SEARCH CLASS:

81,	Tools, subclass 15.4 for deflating tool.
128,	Surgery, Dig 1 for motorized syringe.

99.02

Valve controlling means:

This subclass is indented under subclass 99.01. Subject matter including a means which either controls the rate of flow of pressurized fluid to or from the inflatable means, or prevents any flow until desired.

SEE OR SEARCH THIS CLASS, SUBCLASS:

247,	for valve means which controls fluid that flows to or from body.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 207.16 for valve for controlling gas flow.
137,	Fluid Handling, subclasses 512+ for plural valve means, and subclasses 843+ for resilient material valve.
251,	Valves and Valve Actuation, subclasses 149.1+ for valve operated by joining flow path sections.

99.03

One-way valve:

This subclass is indented under subclass 99.02. Subject matter wherein the valve means allows flow in one direction and prevents flow in the reverse direction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

256,	for flow closing or opening means.

99.04

Having valve means (e.g., ball valve, etc.) in fluid or material delivery lumen:

This subclass is indented under subclass 96.01. Subject matter including a control means in fluid or material delivery conduit to regulate flow therethrough to the body conduit or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

247,	for valve means which controls fluid that flows to or from body.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 207.16 for valve for controlling gas flow.
137,	Fluid Handling, subclasses 512+ for plural valve means, and subclasses 843+ for resilient material valve.
251,	Valves and Valve Actuation, subclasses 149.1+ for valve operated by joining flow path sections.

100.01

Having indicator means:

This subclass is indented under subclass 96.01. Subject matter including means indicating the degree of inflation or deflation within the inflatable means while inserted in the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

118,	for means indicating injection pressure or aspirating suction.

SEE OR SEARCH CLASS:

116,	Signals and Indicators, subclass 202 for indicator having visual light signal; and subclass 210 and Dig 8 for inflatable indicator.
128,	Surgery, subclass 202.22 for means indicating improper condition of apparatus.

100.02

Visual calibration:

This subclass is indented under subclass 100.01. Subject matter wherein the indicator means includes a numerical scale to indicate the degree of inflation or deflation of the inflated means while inserted in the body.

SEE OR SEARCH CLASS:

116,	Signals and Indicators, subclass 259 for indicator with rectilinear moving scale; and subclass 290 for indicator with scale and pointer moved during indication.

100.03

Displaying inflation or deflation data:

This subclass is indented under subclass 100.01. Subject matter including a display means for outputting a numerical data of the degree of inflation or deflation of the inflatable means.

SEE OR SEARCH CLASS:

116,	Signals and Indicators, subclasses 200+ for data displaying means.

101.01

Having plural balloons on conduit:

This subclass is indented under subclass 96.01. Subject matter wherein multiple inflatable means are mounted on the same tubular conduit.

(1) Note. Patents in this subclass disclose the use of multiple inflating means which inflate inside the body to hold that portion affected in an inflated mode and additional inflating means outside the opening in the body to occlude and seal the opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284,	for catheter with plural inflatable balloons.

SEE OR SEARCH CLASS:

606,	Surgery, subclass 194 for dilator inserted into vascular system.

101.02

Balloon within another balloon on conduit:

This subclass is indented under subclass 101.01. Subject matter wherein one inflatable means is located within another on the same tubular conduit.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 191+ dilator with coaxial balloons.

101.03

Having aperture in conduit between balloons:

This subclass is indented under subclass 101.01. Subject matter including a radial opening located in the tubular conduit interconnecting the inflatable means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52,	through 55 for conduit with drainage opening.

101.04	Balloon on different device:
	This subclass is indented under subclass 101.01. Subject matter wherein the balloon is carried on separate tubular conduit providing a space for delivery or removal of fluid or material.

101.05

Axially spaced balloons:

This subclass is indented under subclass 101.01. Subject matter wherein the balloons are longitudinally carried along the tubular conduit.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 658 for catheter structure with spaced balloons.

102.01

Having aperture in conduit proximal of inflated means:

This subclass is indented under subclass 96.01. Subject matter wherein a drainage or material supplying orifice is located in proximity to the balloon means on the tubular conduit.

SEE OR SEARCH CLASS:

128,	Surgery, subclasses 656+ for catheter structure with aperture proximal of inflatable means.
606,	Surgery, subclasses 192+ for dilator inflated by fluid.

102.02

Lumen extending from aperture proximal of inflated means to distal end:

This subclass is indented under subclass 102.01. Subject matter comprising a passageway longitudinally extending from the aperture proximate the balloon to the distal end.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 656 for flexible catheter having lumen extending therethrough.

102.03	Lumen extending from proximal end to aperture proximal of inflated means:
	This subclass is indented under subclass 102.01. Subject matter wherein the tubular conduit comprises a passageway extending from proximal end to the aperture proximate the balloon.

[List of Patents for class 604 subclass 103]

103

With means bonding or mechanically securing balloon sleeve or connector member (e.g., coupling funnel, etc.) to conduit:

This subclass is indented under subclass 96.01. Subject matter wherein specific connecting structure is provided for holding the inflatable means or a coupling funnel on the conduit by bonding or mechanically securing said ele to the body inserted conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

283,	for body inserted conduits (e.g., catheters) with coupling or connector structure.

103.01

Delivering fluid or material through wall of inflated means:

This subclass is indented under subclass 96.01. Subject matter wherein the inflatable balloon wall includes at least an opening extending therethrough to allow passage of fluid, material or medication from the inflatable balloon into the body conduit or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53,	for catheter having holes through which therapeutic material is delivered to the internal wall of blood vessel.
264+,	for body inserted tubular conduit structure.
280+,	for flexible catheter or means used therewith.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 207.15 for breathing passage occluder with opening for delivering medicated gas.

103.02

Delivering fluid or material from external surface of inflated means:

This subclass is indented under subclass 96.01. Subject matter wherein the inflatable balloon wall includes a means on its outer surface for releasing fluid, material or medication into the body conduit or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

890.1+,

for means which releases therapeutic material to body.

103.03

Having means to retain conduit or inflated means in position (e.g., depth control, external seal, etc.):

This subclass is indented under subclass 96.01. Subject matter including a structure on conduit that fixes or seals the device in a desired position within the body conduit, or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278,	for body piercing conduit having orifice sealing means.

103.04

Rapid exchange type (e.g., monorail, etc.):

This subclass is indented under subclass 96.01. Subject matter including a balloon catheter which allows fast exchange thereof (e.g., monorail type, etc.).

SEE OR SEARCH CLASS:

128,	Surgery, subclass 772 for flexible catheter guide.

103.05

Having sheath enclosing balloon:

This subclass is indented under subclass 96.01. Subject matter including an enveloping structure surrounding the inflatable means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263,	for removable cover or protector over body inserted conduit.

103.06

Particular wall structure of inflated means (e.g., varying wall thickness, multilayer, etc.):

This subclass is indented under subclass 96.01. Subject matter wherein the wall of the inflatable means comprises multiple layers, or specific design structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284,	for catheter having branched shape balloons.

SEE OR SEARCH CLASS:

606,	Surgery, subclass 195 for detachable structure of inflation means.

103.07

Specific balloon shape (e.g., doughnut, pear, hour glass, etc.):

This subclass is indented under subclass 103.07. Subject matter wherein the balloon is constructed to take on a specific shape for an area of the body opening (e.g., pear shape, helical shape, lobe section, etc.).

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 194+ for dilator inserted into vascular system.

103.08

Particular surface characteristics (e.g., rib, groove, corrugation, etc.):

This subclass is indented under subclass 103.07. Subject matter wherein the modification takes place on or to the outer or inner surface of the balloon (e.g., rib, groove, corrugation, surface treatment, roughened surface, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

52+,	for ribs or grooves on catheter inserted into blood vessel.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 191+ for dilator having means inflated by fluid.

103.09

Having reinforcing means (e.g., reinforcing coil, etc.):

This subclass is indented under subclass 96.01. Subject matter including means to provide more strength to the balloon or conduit for preventing from collapse of the balloon or conduit during the period of insertion into the body conduit, or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282,	for flexible catheter having rigidifying or anticollapsing means.

SEE OR SEARCH CLASS:

128,	Surgery, subclasses 656+ for flexible catheter structure.

103.1

Having radiopaque characteristics (e.g., ring, marker, tip, etc.):

This subclass is indented under subclass 96.01. Subject matter including means allowing the device to be tracked by application of x-ray, gamma ray or other form of radiant energy.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264+,

for body inserted tubular conduit.

SEE OR SEARCH CLASS:

128,	Surgery, subclasses 656+ for flexible catheter structure.

103.11

Of elastic inflated material:

This subclass is indented under subclass 96.01. Subject matter wherein the inflatable balloon is constructed from a material which allows it to return to its original shape after deformation (inflation or deflation).

SEE OR SEARCH THIS CLASS, SUBCLASS:

281,	for elastic wall of shape memory catheter.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 658 for catheter with elastic wall structure.

103.12

Having inelastic portion:

This subclass is indented under subclass 103.03. Subject matter wherein the elastic inflatable balloon is provided with a non stretchable portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282,	for catheter having rigidifying means such as reinforcing coils.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 192+ for inelastic inflatable means.

103.13

Of inelastic inflated material:

This subclass is indented under subclass 96.01. Subject matter wherein the inflatable balloon is constructed from a non stretchable material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

103.11,

for inflatable balloon having reinforcing member.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 192+ for inelastic inflatable balloon.

103.14

Foldable:

This subclass is indented under subclass 103.05. Subject matter wherein the inflatable balloon wraps upon itself in the deflated or evacuated condition before or after being inserted into the body conduit or opening.

SEE OR SEARCH CLASS:

606,	Surgery, subclass 198 for expanding dilator having foldable arm.

[List of Patents for class 604 subclass 104]

104

Having means expanding body orifice or canal (e.g., dilator, retaining means, etc.):

This subclass is indented under subclass 93.01. Subject matter wherein specific structure is provided for distending or stretching a body opening or vessel.

(1) Note. Many devices inserted in a body orifice will enlarge it. However, a patent is classified as an original in this subclass only if it includes a recitation in the claimed subject matter of specific structure for dilating a body orifice, such as "ridges projecting outwardly from the surface of the nozzle for enlarging a body orifice". Conversely, use of terminology such as "a dilating nozzle" in claimed subject matter is not a recitation of structure which will include a patent herein.

SEE OR SEARCH CLASS:

606,	Surgery, subclasses 191+ for dilators from the body.

105	Expanding bow:
	This subclass is indented under subclass 104. Subject matter wherein the means for expanding the body opening is one or more bowlike members carried upon the conduit which are secured at their ends and in which expansion is produced by causing the ends of said bowlike members to approach each other to dilate said body opening.

106	Expanding arm or finger:
	This subclass is indented under subclass 104. Subject matter wherein the means for expanding the body opening are elongated elements which are inserted into a body opening with their longitudinal axis substantially parallel to the wall thereof and then pivoted about one end so that the other end expands radially and enlarges the opening.

107	Expansion actuated by axially movable member:
	This subclass is indented under subclass 106. Subject matter wherein arm or finger expansion is effected by means of a longitudinally movable member which spreads open the arms or fingers from a closed initial position.

108	Rotatable means actuates axially movable member:
	This subclass is indented under subclass 107. Subject matter wherein the axially movable member is moved longitudinally by means of a rotatable member such as a threaded nut, etc.

[List of Patents for class 604 subclass 109]

109

Expansion actuated by rotatable means (e.g., threaded or cammed member, etc.):

This subclass is indented under subclass 106. Subject matter wherein arm or finger expansion is caused by rotating a threaded or cammed member to spread open the arms or fingers from an initial closed position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108,	for patents disclosing rotating means moving an axially movable member to expand an arm or finger orifice expanding means.

110	Having means for preventing reuse of device:
	This subclass is indented under subclass 93.01. Subject matter provided with means which disables a device such that the device cannot be utilized for placing the body treating material in the body more than one time.

111	Having means for indicating device is defective, used, or tampered with:
	This subclass is indented under subclass 93.01. Subject matter provided with means to alert a person that an apparatus for placing a body treating material in the body is faulty, previously used, or handled in some way such that it has become defective.

112	Having means for desensitizing skin:
	This subclass is indented under subclass 93.01. Subject matter including means for making the skin insensitive to pain before insertion of a hypodermic needle into body tissue.

113	Having means for cooling or heating body, treating or collected material or device:
	This subclass is indented under subclass 93.01. Subject matter providing means for increasing or decreasing the temperature of the material, the apparatus for placing or removing the material in the body, or the body itself.

114	Electric means:
	This subclass is indented under subclass 113. Subject matter wherein the means for heating or cooling consists of electric powered source.

115	Having means for protruding skin to facilitate piercing it:
	This subclass is indented under subclass 93.01. Subject matter provided with means for raising a portion of the skin if the area where a hypodermic needle is to be inserted, thereby facilitating such insertions.

116	Having means for locating or identifying point where body is to be pierced (e.g., apertured body fitting template, etc.):
	This subclass is indented under subclass 93.01. Subject matter including a body marking means for indicating the location of a site where needle will be inserted.

[List of Patents for class 604 subclass 117]

117

Having structure for controlling depth of insertion of body piercer:

This subclass is indented under subclass 93.01. Subject matter including specific structure for regulating the extent of penetration of a needle, or body piercing element into the body.

(1) Note. Obviously the needle holding hub of a hypodermic syringe limits the depth of penetration of the needle into the body. However, to be classified as an original in this subclass, a patent must include in its claimed subject matter a recitation of structure specifically designed to control the depth of insertion of a piercing member into the body and not intended primarily for some other purpose, such as, for example, holding a needle.

118	Having means for varying, regulating, indicating, or limiting injection pressure or aspirating suction:
	This subclass is indented under subclass 93.01. Subject matter including apparatus for changing, controlling, signifying, or restricting the magnitude of the pressure or vacuum under which a body treating material is injected into or removed from the body.

119	Means varying or regulating suction:
	This subclass is indented under subclass 118. Subject matter including means for changing, altering, or controlling the degree of suction within a body inserted conduit.

120	With cyclic or timed regulation:
	This subclass is indented under subclass 119. Subject matter wherein the change or regulation of suction is accomplished in a recurring periodic sequence generally intermittant in nature.

121	On piston type injector or aspirator:
	This subclass is indented under subclass 118. Subject matter wherein the pressure or vacuum varying, regulating, indicating, or limiting means is in communication with a piston or ram type injector.

122	Having means for eliminating and/or preventing injection of air into body:
	This subclass is indented under subclass 93.01. Subject matter including means for removing air from a body treating material or from the means for placing the material in the body for the purpose of preventing injection of the air into the body.

123	From pump injection device:
	This subclass is indented under subclass 122. Subject matter wherein the means from which air is eliminated is a pump type device.

124	From injection means moved by person to impel material into body:
	This subclass is indented under subclass 122. Subject matter wherein the air prevention or elimination means is provided in a manually operated injection means such as a syringe.

125	From hand supported injection means:
	This subclass is indented under subclass 124. Subject matter wherein the manually operated injection means is handheld.

126	By hydrophilic or hydrophobic filter:
	This subclass is indented under subclass 122. Subject matter wherein the air prevention or elimination means consists of either a water attracting or water repelling filter mounted in an injection device.

127	By low level float cutoff:
	This subclass is indented under subclass 122. Subject matter wherein the air elimination or prevention means is a float valve which cuts off liquid flow from the injector reservoir when the liquid level reaches a predetermined level.

[List of Patents for class 604 subclass 128]

128

Having siphon means for removing material from external source or body:

This subclass is indented under subclass 93.01. Subject matter including a U-shaped tube means for transferring a material from storage means or the body by means of atmospheric pressure acting on the material.

SEE OR SEARCH CLASS:

137,	Fluid Handling, subclasses 123+ for siphon structure of general utility.

[List of Patents for class 604 subclass 129]

129

With vacuum breaking means (e.g., vent, etc.):

This subclass is indented under subclass 128. Subject matter including suction breaking means on the siphon to prevent the formation of tissue necrosis on body inserted conduits caused by an excess of liquid column suction in the conduit during siphoning of material from the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10,	for antisiphon devices in body inserted shunts.

SEE OR SEARCH CLASS:

137,	Fluid Handling, subclasses 215+ for antisiphoning devices of general utility.

[List of Patents for class 604 subclass 130]

130

Having projectile injector operated upon impact with body:

This subclass is indented under subclass 93.01. Subject matter wherein a body treating material reservoir is projected by an external force across an open space into contact with said body and which upon impact with said body injects the material thereinto by inertial motion.

SEE OR SEARCH CLASS:

124,	Mechanical Guns and Projectors, appropriate subclasses for projectiles of general utility.

131	Treating material forced into or out of body by self-acting fluid pressure, motor-driven, or mechanical energy storing means (e.g., pressure infusion or aspiration, etc.):
	This subclass is indented under subclass 93.01. Subject matter wherein body treating material is thrust into or expelled from the body by (a) fluid pressure which does not require the application of force by a person during the injection, (b) an apparatus powered by a device which converts any form of energy into mechanical energy, or (c) a mechanical device capable of sorting energy.

132	Material impelled into body by contraction of expanded elastic material reservoir:
	This subclass is indented under subclass 131. Subject matter wherein a filled resilient reservoir chamber maintained in an overstressed condition returns to its original unstressed condition thereby forcing material out of the chamber during contraction of the chamber.

133	Material exhausted from body by expansion of contracted elastic receptacle or resilient means therein:
	This subclass is indented under subclass 131. Subject matter including a resilient chamber which under compression is allowed to expand, either from its own natural resiliency or from resilient means within the chamber, to draw or suck material into the chamber.

134	Material impelled by spring:
	This subclass is indented under subclass 131. Subject matter wherein the material is moved into or out of the body of force exerted by a elastic body which recovers its original shape when released after being distorted.

[List of Patents for class 604 subclass 135]

135

Spring drives piston:

This subclass is indented under subclass 134. Subject matter wherein material is forced into or out of the body by means of a spring driven piston.

SEE OR SEARCH THIS CLASS, SUBCLASS:

218+,

for manually operated piston injectors.

[List of Patents for class 604 subclass 136]

136

Material conduit forced into body by spring:

This subclass is indented under subclass 134. Subject matter wherein a conduit for introducing or withdrawing material into or from the body is driven into the body by a spring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157,	for spring driven conduits wherein the material is withdrawn or introduced manually.

137	Spring triggered by skin contacting means:
	This subclass is indented under subclass 136. Subject matter wherein a spring releasing mechanism is actuated by a means pressing against the skin around the injection site.

[List of Patents for class 604 subclass 138]

138

Portion of conduit stored in material supply means:

This subclass is indented under subclass 136. Subject matter wherein at least a part of the conduit is stored within the material supply reservoir before ejection therefrom by the spring driving means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

195+,

for conduits partly stored within the reservoir and manually ejectable therefrom.

[List of Patents for class 604 subclass 139]

139

Material supply means pierced by conduit:

This subclass is indented under subclass 136. Subject matter wherein the material reservoir is punctured by the spring driven conduit to deliver the body treating material to the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201+,

for feed conduits piercing the reservoir on manually operated injectors.

140	Material impelled by pressurized charge of gas or vacuum:
	This subclass is indented under subclass 131. Subject matter wherein body treating material is forced into the body by means of a super atmospheric pressurized charge of gas or removed from the body by a releasable trapped charge of negative pressure.

141	Material impelled by means (e.g., diaphragm, piston) moved by gas or vacuum pressure:
	This subclass is indented under subclass 140. Subject matter wherein the pressurized charge of gas or vacuum moves an intermediate means which in turn forces the material into or out of the body.

[List of Patents for class 604 subclass 142]

142

Reservoir prepressurized or exhausted by squeeze bulb:

This subclass is indented under subclass 141. Subject matter wherein a manually operated resilient bulb is utilized to initially charge or remove air from the reservoir thereby pressurizing or vacuumizing the intermediate means to impel the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217,	for continuous pressurization or exhaustion of handheld reservoirs by squeeze bulbs during injections.

[List of Patents for class 604 subclass 143]

143

Piston impelled by gas or vacuum pressure:

This subclass is indented under subclass 141. Subject matter wherein the intermediate means moved by gas or vacuum pressure is a piston or ram.

SEE OR SEARCH THIS CLASS, SUBCLASS:

218+,

for manually operated piston structure.

[List of Patents for class 604 subclass 144]

144

And impelling material conduit into body:

This subclass is indented under subclass 143. Subject matter wherein the material conduit is forced into the patient via the gas or vacuum pressurized piston.

SEE OR SEARCH THIS CLASS, SUBCLASS:

156,	for impelled conduits having manually operated material impelling means.

145	Pressurizing gas generated by chemical reaction:
	This subclass is indented under subclass 140. Subject matter wherein the gas pressure is caused by a chemical interaction between gas generating components which when released within a reservoir pressurizes the contents to expel said contents.

[List of Patents for class 604 subclass 146]

146

Pressurizing gas or vacuum charge produced by mechanical actuator (e.g., air pump, etc.) associated with injector:

This subclass is indented under subclass 140. Subject matter wherein the material containing reservoir is pressurized by a manually operated means, such as a piston air pump, attached to or directly located on the injector reservoir.

(1) Note. For a patent to be classified herein, the reservoir must be pressurized each time it is used by the actuator prior to the injection.

147	Pressurizing gas or vacuum charge supplied by external storage source:
	This subclass is indented under subclass 140. Subject matter wherein the material reservoir is pressurized by gas or vacuum delivered from a supply remote from the injector or aspirator, such as a tank or motor-driven pump, which is connected to the reservoir by a conduit.

[List of Patents for class 604 subclass 148]

148

Means broken, cut, pierced, or torn to permit material flow:

This subclass is indented under subclass 140. Subject matter wherein the pressurized source is provided with frangible, rupturable, or pierceable means which upon fracturing, cutting, puncturing, or tearing thereof enables material to be impelled into or out of the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3,	87, 200, 244, and 306, for other medical devices having means broken, cut, pierced, or torn to permit flow of a treating material to the body.

[List of Patents for class 604 subclass 149]

149

Material impelled by negative pressure created by a current of fluid (e.g., air entrainment, etc.):

This subclass is indented under subclass 131. Subject matter wherein the material is entrained or carried into or out of the body by means of a vacuum created by a current of fluid produced in a separate location.

(1) Note. The current of fluid passes through a venturi type device which sets up a suction or pressure into which the material is drawn.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35,	for devices having air entrainment suction produced in the discharge side of body inserted means.

[List of Patents for class 604 subclass 150]

150

Material impelled by hydraulic or water hydrant pressure:

This subclass is indented under subclass 131. Subject matter wherein the material is either thrust into or removed from the body by force exerted by hydraulic pressure or consists of water flowing from a pressurized water source, such as a faucet.

(1) Note. This subclass is distinguished from subclass 149 in that the material is forced directly into the body by the hydrant pressure itself.

151	Material impelled by pump:
	This subclass is indented under subclass 131. Subject matter wherein the material is forced into or out of the body by means of a device which transfers the material from one place to another through tubes or similar conduits.

152	Reciprocating piston type:
	This subclass is indented under subclass 151. Subject matter wherein the pump is a piston or ram slidable in a chamber having inlet and outlet ports in the chamber.

153	Deformable resilient chamber type:
	This subclass is indented under subclass 151. Subject matter wherein the pump consists of an elastic chamber which when repetively deformed by actuator means forces material into or out of the patient.

154	Material impelled by nonreciprocating piston driven by motor:
	This subclass is indented under subclass 131. Subject matter wherein the material is thrust into or out of the body by a ram slidably mounted in a cylinder and moved linearly in one direction only therein by a device which converts any form of energy into mechanical energy.

155	With threaded drive means:
	This subclass is indented under subclass 154. Subject matter wherein the piston is connected to the motor by threaded drive means.

156	Conduit forced into body by self-acting fluid pressure, motor-driven, or mechanical energy storing means:
	This subclass is indented under subclass 93.01. Subject matter wherein a material conductor or piercing conduit is thrust into by (a) fluid pressure which does not require the application of force by a person, (b) an apparatus powered by a device which converts any form of energy into mechanical energy, or (c) a mechanical device capable of storing energy.

157	Conduit impelled by spring:
	This subclass is indented under subclass 156. Subject matter wherein the conductor is thrust into the body by a force exerted by an elastic body which recovers its original shape when released after having been distorted.

[List of Patents for class 604 subclass 158]

158

Body entering conduit axially movable within body piercing conduit while the former is disposed in the body:

This subclass is indented under subclass 93.01. Subject matter wherein a body inserted tube is placed below the skin surface by means of a hollow piercing cannula through which the tube moves, after which the piercing cannula is removed, leaving the tube in place in the tissue.

SEE OR SEARCH THIS CLASS, SUBCLASS:

523+,

for body inserted catheters, per se.

159	Having mechanical means for feeding conduit through piercing conduit:
	This subclass is indented under subclass 158. Subject matter wherein the tube is impelled through the piercing conduit by a mechanical means such as a piston, pump, or reel.

160	Having longitudinal groove or slot in piercing conduit to permit removal from body entering conduit:
	This subclass is indented under subclass 158. Subject matter wherein the hollow piercing conduit is slotted throughout its entire length so that the body entering conduit can be laterally removed from the piercing conduit when the piercing conduit is removed from the body.

161	Piercing conduit longitudinally separable for removal from body entering conduit:
	This subclass is indented under subclass 158. Subject matter wherein the piercing conduit is longitudinally divisible by means of weakened wall portions or other means such that the piercing conduit can be easily removed and separated from around the body entering conduit.

[List of Patents for class 604 subclass 162]

162

Having guard on piercing conduit for protecting body entering conduit:

This subclass is indented under subclass 158. Subject matter provided with means shielding or otherwise protecting the piercing conduit from damaging the body entering conduit or patient during use.

SEE OR SEARCH THIS CLASS, SUBCLASS:

192+,

and 263, for needle covers or protectors, per se.

163	Having bag or sheath enclosing body entering conduit:
	This subclass is indented under subclass 158. Subject matter wherein a flexible enclosure, usually transparent, surrounds at least the major portion of the body entering conduit to protect the body entering conduit from contamination prior to insertion.

164.01

Body piercer, obturator rod, or stylet axially movable within body entering conduit while latter is disposed in body:

This subclass is indented under subclass 93.01. Subject matter wherein the tubular conduit is mounted around a stiffening support element which is slidable removable from the conduit.

(1) Note. The stiffening element may or may not be provided with a sharpened tip for piercing the body, e.g., the element may be employed as a plug to prevent flow through the conduit and may have blunt ends. See subclass 170.01 indented hereunder for devices with blunt ends.

SEE OR SEARCH THIS CLASS, SUBCLASS:

44,	for body piercing means axially movable within one of the lumen conduits.
158,	for body entering conduit axially movable within body piercing means.

164.02

Having portion cooperating with body entering conduit lumen to provide flow control means:

This subclass is indented under subclass 164.01. Subject matter wherein the relative position between the stiffening support element and the conduit lumen provide a means to regulate the flow of material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

249,	for longitudinally movable element whose linear movement controls flow of material.

164.03

Having means for expanding portion of body entering conduit:

This subclass is indented under subclass 164.01. Subject matter wherein the body entering conduit comprises a dilating component defining therewith a longitudinally extending transversely expandable channel for assisting in the insertion of the stiffening support element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

104,	for dilator means.

164.04

Having means on conduit or conduit hub for securing conduit to body:

This subclass is indented under subclass 164.01. Subject matter wherein the body entering conduit or conduit hub comprises fastening means to attach the device to the body.

SEE OR SEARCH CLASS:

128,	Surgery, Dig 26, for cannula supporter.

164.05

Having means on body entering conduit to facilitate longitudinal tearing of conduit:

This subclass is indented under subclass 164.01. Subject matter comprising a rupturing means formed in the body entering conduit to permit severing thereof along the longitudinal direction of the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160,	for longitudinal groove or slot in piercing conduit to permit removal from body entering conduit.

164.06

Having tapered portion to provide cutting tip:

This subclass is indented under subclass 164.01. Subject matter wherein the body piercer comprises a beveled surface at its distal end to form a puncturing tip.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239,	for specific structure of body piercing conduit.

164.07

Having friction means on hub portion for frictionally engaging with hub portion of body entering conduit:

This subclass is indented under subclass 164.01. Subject matter wherein the stiffening support comprises a hub portion frictionally engaging with a hub portion of the body entering conduit by means of a protrusion, depression, or mechanically operated means for permitting a single handed removal of the conduit from axially inserted member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

243,	for conduit removably attached to injector component by friction.

164.08

Having cover or protector for body entering conduit:

This subclass is indented under subclass 164.01. Subject matter comprising a housing means for shielding or otherwise protecting a body penetrating conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

263,	for removable cover or protector for body inserted conduit.

164.09

Having additional body entering conduit:

This subclass is indented under subclass 164.01. Subject matter provided with a second longitudinal extending body entering conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

264,	for body inserted tubular conduit structure.

164.1

Dilator:

This subclass is indented under subclass 164.12. Subject matter wherein the second body entering conduit is a dilator.

SEE OR SEARCH CLASS:

606,	Surgery, subclass 198 for expanding dilator and 199 for nasal dilator.

164.11

Cannula:

This subclass is indented under subclass 164.12. Subject matter wherein the second body entering conduit is a cannula.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280,	for cannula or means used therewith.

164.12

Having biasing means for urging body piercer, obturator, or stylet:

This subclass is indented under subclass 164.01. Subject matter wherein the device comprises a spring means for moving the piercer, obturator, or stylet tip in outwardly extended or retracted position relative to the body entering conduit.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 754 for body piercing means with tubular cutter or rod-type punch.
606,	Surgery, subclass 182 for spring driven or biased into cutting position.

164.13

Guidewire within flexible body entering conduit:

This subclass is indented under subclass 164.01. Subject matter wherein the device comprises a flexible elongated member for guiding the flexible body entering conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

280,	for flexible catheter or means used therewith.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 772 for flexible catheter guide.

165.01

Having means preventing relative movement between elements during insertion into body:

This subclass is indented under subclass 164.01. Subject matter wherein a retaining or lock means prevents either longitudinal or rotational movement between the conduit and the stiffening support element during their insertion into the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

240,	for specific structure of means connecting body entering conduit to syringe, and 283 for coupling or connector structure.

SEE OR SEARCH CLASS:

24,	Buckles, Buttons, Clasps, etc., subclass 543 for integral locking-means.

165.02

Longitudinal movement:

This subclass is indented under subclass 165.01. Subject matter wherein the movement between the elements is a sliding movement along their longitudinal axis.

SEE OR SEARCH CLASS:

24,	Buckles, Buttons, Clasps, etc., subclasses 593+ for position locking-means.

165.03

By use of wings to pinch and hold elements together to allow insertion:

This subclass is indented under subclass 165.02. Subject matter wherein wings are used to pinch the conduit and the stiffening support element to prevent longitudinal movement between each other during insertion into the body.

SEE OR SEARCH CLASS:

128,	Surgery, Dig. 26 for cannula supporters.

165.04

Rotational movement:

This subclass is indented under subclass 165.01. Subject matter wherein the movement between the elements is a turning movement on an axis.

SEE OR SEARCH CLASS:

24,	Buckles, Buttons, Clasps, etc., subclass 600.01 for locking-means pivotally connected.

166.01	Having groove or reduced portion on piercer, obturator rod, or stylet for receiving distal end of conduit:
	This subclass is indented under subclass 164.01. Subject matter wherein the stiffening element has a channel or recess, usually circumferential, for receiving the inserted end of the conduit to thereby facilitate the entry of the conduit into the body.

167.01

Having flow closure means for conduit:

This subclass is indented under subclass 164.01. Subject matter wherein a means is provided in or on the conduit to prevent flow of material therethrough or leakage therefrom when the stiffening element is located within the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

236,	for material flow controlled by valve or movable closure.

167.02

Resealable plug, septum or diaphragm:

This subclass is indented under subclass 167.01. Subject matter wherein the flow closure means is a reclosable stopper that prevents flow of material through the conduit or leakage therefrom after the stiffening element is removed from the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237,	for diaphragm valve.

167.03

Valve means:

This subclass is indented under subclass 167.01. Subject matter wherein the flow closure means is a mechanical flow control means to prevent flow of material through the conduit or leakage therefrom after the stiffening element is removed from the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

256,	for flow closing or opening means.

167.04

Slit valve:

This subclass is indented under subclass 167.03. Subject matter wherein the valve means is a slit disc allowing the stiffening element to pass therethrough and resealing the conduit upon removal of the stiffening element.

SEE OR SEARCH CLASS:

137,	Fluid Handling, subclass 846 for resilient material valve.

167.05

Rotatable type valve (e.g., stopcock etc.):

This subclass is indented under subclass 167.03. Subject matter wherein the valve means includes a rotating valve body for controlling flow into and out of the conduit after the stiffening element is removed therefrom.

SEE OR SEARCH CLASS:

251,	Valve and Valve Actuation, subclasses 304+ for rotary valve.

167.06	Means in conduit to produce fluid tight seal between conduit and element only when element is located within conduit and passing through seal means:
	This subclass is indented under subclass 167.01. Subject matter wherein the flow closure includes a seal means providing a friction fit with the stiffening element to seal the conduit only when the element is located within the conduit and providing flow therethrough when the element is removed.

168.01

Having telltale for showing entry of blood into conduit:

This subclass is indented under subclass 164.01. Subject matter including means for indicating the correct positioning of the conduit within a blood vessel by visual observation of blood therein, (e.g., a transparent portion on conduit external to body after piercing of blood vessel etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

900,	for other devices having blood telltale indicators.

170.01

Having blunt tip on stiffening element or elongated rod:

This subclass is indented under subclass 164.01. Subject matter wherein the insertion end of the stiffener or elongated rod is unsharpened or dull.

SEE OR SEARCH CLASS:

128,	Surgery, subclass 657 for catheter guide means.

170.02	Obturator or stylet:
	This subclass is indented under subclass 170.01. Subject matter wherein the unsharpened or dull insertion end is on a closing device or surgical probe.

170.03

Having curved portion:

This subclass is indented under subclass 164.01. Subject matter wherein the tubular conduit or the stiffening support element is constructed with a bend to facilitate insertion of the device into the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272,	for shape and size of body piercing means.

[List of Patents for class 604 subclass 171]

171

Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct:

This subclass is indented under subclass 93.01. Subject matter wherein a body insertible tube (e.g., catheter, etc.) is slidably mounted within a collapsible cylinder or envelope which are hand manipulated to feed the tube into a body cavity by repetitive axial movements thereof without contaminating the tube.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163,	for other body inserted conduits within a protective axially collapsible sheath.

[List of Patents for class 604 subclass 172]

172

Having lubricating means:

This subclass is indented under subclass 171. Subject matter including means on or within the protective sheath for facilitating insertion of the conduit into the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

265,	for lubricating means on the conduit, per se.

173	Injection or aspiration device having plural body entering conduits:
	This subclass is indented under subclass 93.01. Subject matter including multiple conduits placed in a body of bodies to operate individually or simultaneously to supply or remove material to or from the body.

174	Means for securing conduit to body:
	This subclass is indented under subclass 93.01. Subject matter including means for holding a conduit on the body or in the body in order to introduce or remove material from the body.

[List of Patents for class 604 subclass 175]

175

Implanted connecting means:

This subclass is indented under subclass 174. Subject matter wherein the attaching component is surgically inserted within body tissue.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8+,	for shunts which have been surgically implanted.

176	Vacuum:
	This subclass is indented under subclass 174. Subject matter wherein the conduit is held on or in the body by a negative pressure applied to some means contacting the body.

[List of Patents for class 604 subclass 177]

177

And used as conduit manipulator (e.g., foldable gripper wings, etc.):

This subclass is indented under subclass 174. Subject matter including element means carried by the conduit which permits manual manipulation of the conduit by the operator and which element means is utilized as the conduit securing means after having been manipulated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

158+,

and 164.01+ for winged intravenous feeding conduits.

178	Axially movable clamp means:
	This subclass is indented under subclass 174. Subject matter wherein the conduit securing means includes a longitudinally movable member mounted on the conduit which is axially moved into clamping engagement with the body after insertion of the conduit into the body.

179	Belt, strap, or band securing means:
	This subclass is indented under subclass 174. Subject matter wherein the conduit securing means consists either of an elongated strip of material with or without end securing means or in the form of a closed loop.

180	Adhesive securing means:
	This subclass is indented under subclass 174. Subject matter wherein the conduit securing means includes a cementlike substance.

181	Means moved by person to inject or remove fluent material to or from body inserted conduit, holder, or reservoir:
	This subclass is indented under subclass 93.01. Subject matter wherein a component is move by an operator to eject flowable material to or from a conduit, holder, or container placed in the body.

182	Means moved by weight of body placed thereon:
	This subclass is indented under subclass 181. Subject matter wherein the weight of a body is applied to a device to eject material therefrom.

183	Material expelled from reservoir having separate external feed means and discharge outlet:
	This subclass is indented under subclass 181. Subject matter wherein the material is introduced from a source into an external reservoir and is thereafter ejected from the reservoir through a separate outlet.

184	Material fed to reservoir through hollow piston:
	This subclass is indented under subclass 183. Subject matter wherein the material is introduced into the reservoir through a passageway in a piston connected to the external material source.

185	Reservoir squeezed to expel material therefrom:
	This subclass is indented under subclass 183. Subject matter wherein a resilient reservoir holding material is compressed to eject the material therefrom.

[List of Patents for class 604 subclass 186]

186

Means for metering material flow to or from body:

This subclass is indented under subclass 183. Subject matter including a means for supplying or removing a predetermined amount of material to or from the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

207,	for a body supported injector (e.g., handheld hypodermic syringe) having means for metering the amount of material injected or removed from the body.

[List of Patents for class 604 subclass 187]

187

Injector or aspirator syringe supported only by person during use (e.g., handheld hypodermic syringe, douche tube with forced injector, etc.):

This subclass is indented under subclass 181. Subject matter wherein an injecting or aspirating syringe means for inserting or removing a body treating material into or from the body is entirely supported by a person or persons during the injection or removal of said material from the body.

(1) Note. To be included here, an injector or aspirator syringe must be entirely supported by a person or persons during the injection or removal of material into or from the body. A syringe means which is partially supported by a person and partialy supported by other means, such as a handheld nozzle attached to a supply hose leading to a reservoir of body treating material which is not supported by a person (e.g., a gravity feed reservoir mounted on a stanchion), is not classifiable in this subclass or its indents. However, a hypodermic syringe having its needle inserted in the body of a patient (which thereby provides some support for the needle) and it barrel and other appurtenances supported by an attendant, is classifiable in this subclass or its indents, because the injector is entirely supported by persons.

SEE OR SEARCH CLASS:

216,	Etching a Substrate: Processes, subclass 11 for the use of etching in the forming or treating of an article whose final configuration has a projection.

188	Having body piercing conduit mounted on syringe for rotation about its longitudinal axis:
	This subclass is indented under subclass 187. Subject matter wherein a conduit having a pointed end for puncturing the body (e.g., a hollow needle), said conduit being attached to a holding portion of the injecting or aspirating apparatus in such a manner that it can turn about its longitudinal axis to facilitate insertion.

189	Having medical information (e.g., name of patient or medicament, etc.):
	This subclass is indented under subclass 187. Subject matter including a means for recording or indicating medical information, such as an etched surface on the barrel of a hypodermic syringe for receiving a pencilled notation.

190	Having fluid filter:
	This subclass is indented under subclass 187. Subject matter including a porous article or mass through which material passes to separate some constituent therefrom.

[List of Patents for class 604 subclass 191]

191

Having plural material reservoirs:

This subclass is indented under subclass 187. Subject matter including multiple reservoirs for a body affecting agent or agents.

(1) Note. Plural containers for mixing separate components are not classifiable herein in which case, see this class, subclasses 82+, for mixing containers.

192	Having cover or protector for body entering conduit:
	This subclass is indented under subclass 187. Subject matter including detachable means for shielding or otherwise protecting a conductor to be placed in the body.

193	Used as a piston actuator after removal from conduit covering or protecting position on syringe:
	This subclass is indented under subclass 192. Subject matter wherein the shielding or protecting means is used to move a piston in the material inserting or removing device, after being removed from the position in which it shields or otherwise protects the conductor.

194	Entire body entering conduit stored in cavity in piston or piston actuator inside syringe prior to use:
	This subclass is indented under subclass 192. Subject matter wherein a complete body insertible conductor is stowed within the syringe prior to use for injection in a space within a piston or the actuator means for moving a piston.

195	Portion of entering conduit stored in material receiving syringe reservoir:
	This subclass is indented under subclass 192. Subject matter wherein at least part of the body insertible conduit is stowed in the syringe reservoir in which the body treating material is held before inserting the material into the body.

196	And extended therefrom by piston when syringe is used:
	This subclass is indented under subclass 195. Subject matter wherein a portion of the body insertible conduit is projected from the material holding reservoir by a ram or plunger when the conduit is to be placed in the body.

197	Common cover or protector for body entering conduit and material syringe reservoir:
	This subclass is indented under subclass 192. Subject matter wherein the shield or other means for protecting the body inserted conductor also shields or otherwise protects the reservoir holding the material.

[List of Patents for class 604 subclass 198]

198

Cover or protector for body entering conduit movable axially relative to one another:

This subclass is indented under subclass 192. Subject matter wherein the conductor, shield, or protecting means is moved axially relative to the conduit or the conduit is moved axially relative to the shield or protecting means such that the conduit is exposed for use or repositioned in the shield or protector after use.

(1) Note. Patents in this subclass disclose the movement of the conduit, cover or protector against the action of a spring, or by movement of the conduit cover or protector against inertia or by movement of the conduit to pierce the end of the cover or protector.

SEE OR SEARCH THIS CLASS, SUBCLASS:

171+,

for a conductor axially movable within a flexible protective sheath.

[List of Patents for class 604 subclass 199]

199

Having structure for facilitating sterilization of syringe or preventing contamination of material therein:

This subclass is indented under subclass 187. Subject matter including specific structure for making it convenient for the material inserting means to be maintained in a sterile condition, or preventing spoilage of the material by contact with undesirable substances.

(1) Note. A patent is classified as an original in this subclass only if it includes a recitation of structural details of a means which facilitates sterilizing a syringe or which prevents contamination of the treating material held therein.

[List of Patents for class 604 subclass 200]

200

Means broken, cut, pierced, or torn to permit material flow to or from body:

This subclass is indented under subclass 187. Subject matter including an element which is fractured, separated by an edged instrument, punctured by some means, or separated by having portions thereof rended by pulling apart for the purpose of allowing flow of material to or from the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

87,	and 148, for means broken, cut, pierced, or torn to permit mixing of materials.

[List of Patents for class 604 subclass 201]

201

Septum pierced by conduit to permit flow:

This subclass is indented under subclass 200. Subject matter wherein a dividing wall is punctured by a conduit such as a hollow needle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88,	for a septum pierced by a conduit to permit mixing of materials.

202	Septum flexed toward conduit to force conduit therethrough:
	This subclass is indented under subclass 201. Subject matter wherein the dividing wall is deflected toward the conduit so that the wall is punctured.

[List of Patents for class 604 subclass 203]

203

Septum pierced is piston head:

This subclass is indented under subclass 201. Subject matter wherein a piston in a housing for the body treating material is punctured to permit flow of the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

231,	for structure of a piston having a discharge passage therethrough.

[List of Patents for class 604 subclass 204]

204

Septum within collapsible material reservoir:

This subclass is indented under subclass 201. Subject matter wherein the material holder comprises a resilient squeeze bulb or like collapsible holder having a dividing wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212+,

for squeeze bulb devices for injecting or withdrawing material into or from body.

205	Septum piercing conduit separate from body entering conduit:
	This subclass is indented under subclass 201. Subject matter wherein the material enters or leaves the body through one conduit and the dividing wall is punctured by another conduit.

206	Septum piercing conduit attached to injector by turning one component relative to another (e.g., thread, bayonet type connectors, etc.):
	This subclass is indented under subclass 201. Subject matter wherein the conduit which punctures the dividing wall is secured to the syringe means by elements which are rotatable relative to each other.

[List of Patents for class 604 subclass 207]

207

Having means for metering material flow to or from body:

This subclass is indented under subclass 187. Subject matter including a means for supplying or removing a predetermined amount of material to or from the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

186,	for an injector/aspirator having a material supply reservoir with an inlet and an outlet, and a means for metering the amount of material injected into or removed from the body.

208	Including means for controlling piston stroke length:
	This subclass is indented under subclass 207. Subject matter comprising a piston for forcing material into or out of the body and a means for regulating the distance of travel of the piston.

209	By ratchet and pawl:
	This subclass is indented under subclass 208. Subject matter wherein the piston moving means comprises a bar or wheel having teeth engaged by a propelling pawl.

210	By detent:
	This subclass is indented under subclass 208. Subject matter in which a device, for temporarily keeping one part in a fixed position relative to another part, is released by the application of force to one of the parts to regulate the travel of the piston.

211	By rotatable means (e.g., micrometer, etc.):
	This subclass is indented under subclass 208. Subject matter comprising a means which rotates to regulate the length of piston stroke.

212	Having collapsible material reservoir (e.g., squeeze bulb, etc.):
	This subclass is indented under subclass 187. Subject matter wherein the material is impelled to or from a resilient squeeze bulb or like collapsible material holder through a body inserted conduit.

213	Having means to prevent fluid return to reservoir:
	This subclass is indented under subclass 212. Subject matter including means, such as a one way valve, for preventing reentry of the material to the collapsible holder.