US PATENT SUBCLASS 604 / 530
.~.~.~.~.~ With shape retaining memory

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}
523  DF  .~.~.~.~ Flexible catheter or means (e.g., coupling) used therewith {5}
530.~.~.~.~.~ With shape retaining memory {2}
531  DF  .~.~.~.~.~.~> Temperature activated
532  DF  .~.~.~.~.~.~> Shaped for cardiovascular system

DEFINITION

Classification: 604/530

With shape retaining memory:

(under subclass 523) Subject matter wherein the conduit is constructed of a material, which allows the conduit, remains nonlinear in its unstressed state or to be axially altered and then return to its original shape after deformation.

(1) Note. For placement in this subclass the cannulae must have shape-retaining capability, patents disclosing strain gages placed along the lumen's interior wall to alter the form of the lumen are not appropriate subject matter for this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

95.05, for patents disclosing a remote controlled means to alter the conduit s shape.

528, for linear catheters which become curvilinear due to the manipulation of an internal element, including curved guidewires.