Implantable, actively expandable stent

Description

FIG. 1 is a perspective view of an implantable, actively expandable stent showing our new design;

FIG. 2 is an enlarged front elevational view thereof;

FIG. 3 is an enlarged side elevational view thereof;

FIG. 4 is a perspective view of a second embodiment of the implantable, actively expandable stent;

FIG. 5 is an enlarged front-end elevational view thereof;

FIG. 6 is an enlarged side elevational view thereof;

FIG. 7 is an enlarged front-end elevational view of a third embodiment of the implantable, actively expandable stent; and,

FIG. 8 is an enlarged side elevational view thereof.

The various figures of the drawing depict the ornamental design of an implantable, actively expandable stent. A plurality of interconnected cells extends around the circumference of the tubular-shaped stent and forms a row transverse to the longitudinal axis of the stent. Several sides of each cell are circumferentially oriented and inclined to the longitudinal axis of the stent; whereas the interconnected sides are substantially aligned with the longitudinal axis. Cells in adjacent rows are offset from each other. The interconnections between cells in a given row are wound in one direction or an other with the interconnections of adjacent row cells being wound in the opposite direction. In another aspect of the design, the interconnections of the cells are all wound in the same direction.

Claims

The ornamental design for an implantable, actively expandable stent, as shown and described.

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Inventors:	Boatman; Scott E. (Bloomington, IN), Hoffa; Michael C. (Bloomington, IN)
Assignee:	Cook Incorporated (Bloomington, IN)
Appl. No.:	D/032,966
Filed:	December 30, 1994

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Current U.S. Class:	D24/155
Current International Class:	2403
Field of Search:	;D24/155 ;623/1,12,900 ;606/194,195,198 ;604/104

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References Cited [Referenced By]

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U.S. Patent Documents

D359802	June 1995	Fontaine
4503569	March 1985	Dotter
4655771	April 1987	Wallsten
4856516	August 1989	Hillsted
4954126	September 1990	Wallsten
4969458	November 1990	Wiktor
5116365	May 1992	Hillstead
5133732	July 1992	Wiktor
5135536	August 1992	Hillstead
5226913	July 1993	Pinchuk
5234456	August 1993	Silvestrini
5389106	February 1995	Tower
5395390	March 1995	Simon et al.
5411549	May 1995	Peters

Foreign Patent Documents

	0464755		Jan 1992		EP
	0481365		Apr 1992		EP
	3918736		Dec 1990		DE

Other References

David Keane, Coronary Stenting: A Quantititative Angiographic and Clinical Evaluation: Uniprint Schiedam. The Netherlands: Jun. 14, 1995, pp. 245-248, 281 (ISBN 90-9008321-9). . "Cook-Z.RTM. Stents, Gianturco-Rosch Tracheobronchial Design," Cook Incorporated: Bloomington, Indiana: 1944. . "Cook-Z.TM. Stents, Gianturco-Rosch Biliary Design," Cook Incorporated: Bloominton, Indiana: 1992. . "Cook-Z.RTM. Stents, Gianturco-Rosch Covered Esophageal Design," William Cook Europe, Denmark: 1993. . "Cook Cardiology, Gianturco-Roubin Coronary Stent," Cook Incorporated: Bloomington, Indiana: 1983. . "The Palmaz.TM. Balloon-Expandable Stent," Johnson & Johnson Interventional Systems Co.: Warren, NJ: 1993. . "Coronary Wallstent.TM. Endoprosthesis". Schneider, Switzerland: 1995..

Primary Examiner: Reid; Stella
Attorney, Agent or Firm: Godlewski; Richard J.