Combined impactor and extractor for prosthetic implants

- Zimmer, Inc.
Description

FIG. 1 is a perspective view of a combined impactor and extractor for prosthetic implants showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a rear elevational view thereof, opposite to the front view seen in FIG. 1 and with the jaws in a closed position;

FIG. 4 is a side elevational view thereof opposite that shown in FIG. 2;

FIG. 5 is an end elevational view thereof, with the jaws in an open position;

FIG. 6 is an end elevational view thereof, with the jaws in a closed position;

FIG. 7 is an end elevational view thereof, opposite to that shown in FIG. 6;

FIG. 8 is a cross-sectional view thereof taken along lines 8--8 of FIG. 2;

FIG. 9 is a cross-sectional view thereof taken along lines 9--9 of FIG. 2;

FIG. 10 is a rear elevational view thereof, with the jaws in an open position; and,

FIG. 11 is a cross-sectional view thereof taken along lines 11--11 of FIG. 4.

Referenced Cited
U.S. Patent Documents
D230095 January 1974 Rylee
D230097 January 1974 Rylee
D249705 September 26, 1978 London
D290399 June 16, 1987 Kitchens
3750652 August 1973 Sherwin
3857389 December 1974 Amstutz
4222382 September 16, 1980 Antonsson et al.
4263903 April 28, 1981 Griggs
4364389 December 21, 1982 Keller
4389913 June 28, 1983 Drouin et al.
4438769 March 27, 1984 Pratt et al.
4459985 July 17, 1984 McKay et al.
4531517 July 30, 1985 Forte et al.
4592346 June 3, 1986 Jurgutis
4721104 January 26, 1988 Kaufman et al.
4993410 February 19, 1991 Kimsey
5002547 March 26, 1991 Poggie et al.
Other references
  • Depuy Synatomic Knee Tibial Plateau Components with Porocoat--(Impactor Instruments)--1986. Johnson & Johnson (J&J)--PFC Knee Surgical Technique (Femoral Inserter)--No date available. Kirschner Medical Corporation--The Performance Knee--Truly Modular Total Knee System (Various Handle and Drivers)--1989. Zimmer, Inc.--1990 MG II Knee System--Tibial and Femoral Impactor. Zimmer, Inc. 1987 Catalog (p. A43)--Slaphammer 6651-06. Zimmer, Inc. 1981 Catalog (p. A172)--Femoral Impactor/Extractor for Attenborough Knee. Zimmer, Inc. 1990--I/B II Tibial Tray Provisional Extractor. Zimmer, Inc. 1987 Catalog (p. F6)--Series 3 Oscillating Saw Wrench.
Patent History
Patent number: D337639
Type: Grant
Filed: Nov 21, 1990
Date of Patent: Jul 20, 1993
Assignee: Zimmer, Inc. (Warsaw, IN)
Inventor: Audrey M. Beckman (Warsaw, IN)
Primary Examiner: Stella Reid
Assistant Examiner: Ian Simmons
Attorney: Margaret L. Geringer
Application Number: 7/618,328