US PATENT SUBCLASS 604 / 158
.~.~.~ Body entering conduit axially movable within body piercing conduit while former is disposed in the body

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}
158.~.~.~ Body entering conduit axially movable within body piercing conduit while former is disposed in the body {5}
159  DF  .~.~.~.~> Having mechanical means for feeding conduit through piercing conduit
160  DF  .~.~.~.~> Having longitudinal groove or slot in piercing conduit to permit removal from body entering conduit
161  DF  .~.~.~.~> Piercing conduit longitudinally separable for removal from body entering conduit
162  DF  .~.~.~.~> Having guard on piercing conduit for protecting body entering conduit
163  DF  .~.~.~.~> Having bag or sheath enclosing body entering conduit

DEFINITION

Classification: 604/158

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

(under subclass 93) 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.