US PATENT SUBCLASS 604 / 505
.~.~.~.~ By measurement of a pressure differential

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}
500  DF  .~.~ Method {8}
503  DF  .~.~.~ Therapeutic material introduced or removed in response to a sensed body condition {2}
505.~.~.~.~ By measurement of a pressure differential

DEFINITION

Classification: 604/505

By measurement of a pressure differential:

(under subclass 503) Subject matter for a process to determine the pressure drop across the equipment line or in the patient as a means of controlling the rate of infusion.

(1) Note. The pressure differential across the equipment line is indicative of a normal, phlebitic, or occluded condition in the blood vessel or patient.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66, for appropriate apparatus responsive to sensed body condition.

503, for sensing condition of body.

504, for sensing metabolite concentration.