US PATENT SUBCLASS 604 / 146
.~.~.~.~.~ Pressurizing gas or vacuum charge produced by mechanical actuator (e.g., air pump, etc.) associated with injector

Current as of: June, 1999
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604 /   HD   SURGERY

19  DF  MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.) {7}
48  DF  .~ Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin {9}
93  DF  .~.~ Material introduced or removed through conduit, holder, or implantable reservoir inserted in body {30}
131  DF  .~.~.~ 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.) {8}
140  DF  .~.~.~.~ Material impelled by pressurized charge of gas or vacuum {5}
146.~.~.~.~.~ Pressurizing gas or vacuum charge produced by mechanical actuator (e.g., air pump, etc.) associated with injector

DEFINITION

Classification: 604/146

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

(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.