US PATENT SUBCLASS 604 / 149
.~.~.~.~ Material impelled by negative pressure created by current of fluid (e.g., air entrainment, etc.)

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}
149.~.~.~.~ Material impelled by negative pressure created by current of fluid (e.g., air entrainment, etc.)

DEFINITION

Classification: 604/149

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

(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.