US PATENT SUBCLASS 604 / 274
.~.~.~.~.~ Specific structure for preventing coring of body tissue

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}
264  DF  .~.~.~ Body inserted tubular conduit structure (e.g., needles, cannulas, nozzles, trocars, catheters, etc.) {7}
272  DF  .~.~.~.~ Body piercing condit (e.g., needle, etc.) {2}
274.~.~.~.~.~ Specific structure for preventing coring of body tissue

DEFINITION

Classification: 604/274

Specific structure for preventing coring of body tissue:

(under subclass 272) Subject matter wherein significance is attributed to the structure of the conduit such that the conduit enters body tissue without cutting a plug of tissue that enters the bore of the conduit.

(1) Note. A patent is classified as an original in this subclass only if it includes as part of its claimed subject matter a recitation of structural details of a conduit which prevents coring during insertion of the conduit into body tissue, usually a recitation of the shape of the point of the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403, for hollow needles designed to pierce a closure element of a container without cutting a core plug therefrom.