Cryosurgical instrument

- Brymill Corporation
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Description

FIG. 1 is a perspective view of the cryosurgical instrument, with a rotatable valve operating lever in a first position.

FIG. 2 is a side elevation view of the cryosurgical instrument of FIG. 1 with the valve operating lever in a second position.

FIG. 3 is a front elevation view of the cryosurgical instrument of FIG. 1 with the valve operation lever shown solid in the second position and in phantom in a third and fourth position.

FIG. 4 is a top plan view of the cryosurgical instrument of FIG. 1 with the valve operating lever in the second position; and,

FIG. 5 is an bottom plan viewof the cryosurgical instrument of FIG. 1 with the valve operating lever in the second position.

Referenced Cited
U.S. Patent Documents
D225691 December 1972 Pulos
D387863 December 16, 1997 Herman et al.
4865028 September 12, 1989 Swart
5330745 July 19, 1994 McDow
5516505 May 14, 1996 McDow
Patent History
Patent number: D409749
Type: Grant
Filed: Aug 17, 1998
Date of Patent: May 11, 1999
Assignee: Brymill Corporation (Vernon, CT)
Inventor: Thomas A. Griswold (Ellington, CT)
Primary Examiner: Pamela Burgess
Attorney: M. P. Williams
Application Number: 0/92,359
Classifications
Current U.S. Class: Hand Manipulated Tool Or Instrument (23) (D24/133)
International Classification: 2404;