Spinal drill surgical instrument

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Description

FIG. 1 is a front elevational view of a spinal drill surgical instrument showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D274161 June 5, 1984 Kenna
4612922 September 23, 1986 Barber
5052411 October 1, 1991 Schoolmann
5423822 June 13, 1995 Hershberger et al.
5474558 December 12, 1995 Neubardt
5484437 January 16, 1996 Michelson
Patent History
Patent number: D382961
Type: Grant
Filed: Feb 2, 1995
Date of Patent: Aug 26, 1997
Inventors: Tibor Koros (Moorpark, CA), Gabriel Koros (Moorpark, CA)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: I. Simmons
Attorney: Richard D. Slehofer
Application Number: 0/34,365
Classifications
Current U.S. Class: Cutting, Abrading, Scraping Or Puncturing (31) (D24/146)
International Classification: 2402;