Retractor for coronary artery bypass surgery

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Description

FIG. 1 is a perspective view of a retractor for coronary artery bypass surgery showing our new design; the broken line showing of the chest cavity is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top view thereof;

FIG. 3 is a is a bottom view thereof;

FIG. 4 is a is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

Referenced Cited
U.S. Patent Documents
D361381 August 15, 1995 Koros et al.
D399955 October 20, 1998 Koros et al.
5025779 June 25, 1991 Bugge
5520608 May 28, 1996 Cabrera et al.
5846194 December 8, 1998 Wasson et al.
5875782 March 2, 1999 Ferrari et al.
Patent History
Patent number: D421803
Type: Grant
Filed: Mar 7, 1998
Date of Patent: Mar 21, 2000
Inventors: Tibor B. Koros (Moorpark, CA), Gabriel J. Koros (Moorpark, CA)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Attorney: David O'Reilly
Application Number: 0/84,672
Classifications
Current U.S. Class: Speculum, Dilator Or Retractor (25) (D24/135)
International Classification: 2402;