US PATENT SUBCLASS 604 / 154
.~.~.~.~ Material impelled by nonreciprocating piston driven by motor

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}
154.~.~.~.~ Material impelled by nonreciprocating piston driven by motor {1}
155  DF  .~.~.~.~.~> With threaded drive means

DEFINITION

Classification: 604/154

Material impelled by nonreciprocating piston driven by motor:

(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.