Heart valve stiffening ring

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Description

FIG. 1 is a top perspective view of a heart valve stiffening ring showing my new design;

FIG. 2 is a top plan view of the heart valve stiffening ring of FIG. 1;

FIG. 3 is a bottom plan view of the heart valve stiffening ring of FIG. 1;

FIG. 4 is a side elevational view of the heart valve stiffening ring of FIG. 1; and,

FIG. 5 is an elevational view of the heart valve stiffening ring showing an opposite side from that illustrated in FIG. 4.

The broken line showing of the heart valve annular channel shaped body in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a heart valve stiffening ring, as shown and described.

Referenced Cited
U.S. Patent Documents
2391632 December 1945 Knight et al.
3057630 October 1962 Sneed
3685059 August 1972 Bokros et al.
4363142 December 14, 1982 Meyer
4425670 January 17, 1984 Figuera
4479670 October 30, 1984 Gabler
4544185 October 1, 1985 Weirich et al.
4863460 September 5, 1989 Maglardy
D376206 December 3, 1996 Reif
5628789 May 13, 1997 Vanney et al.
5695503 December 9, 1997 Krueger et al.
5776188 July 7, 1998 Shepherd et al.
Patent History
Patent number: D471981
Type: Grant
Filed: Sep 3, 1997
Date of Patent: Mar 18, 2003
Assignee: Republic Medical Products Inc. (Vero Beach, FL)
Inventor: Thomas H. Reif (Vero Beach, FL)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Gregory Andoll
Attorney, Agent or Law Firm: Albert H. Reuther
Application Number: 29/076,617
Classifications
Current U.S. Class: Prosthesis Or Implant (D24/155)
International Classification: 2403;