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 perspective view of the cryosurgical instrument of FIG. 1 with the valve operating lever in a second position.

FIG. 3 is a perspective view of the cryosurgical instrument of FIG. 1 with the valve operating lever in a third position; and,

The bottom surface of the cryosurgical instrument not shown in the drawing or described in the specification forms no part of the claimed design.

The undisclosed surfaces of the article not shown in the drawing are the same as the corresponding surfaces which are shown.

Referenced Cited
U.S. Patent Documents
3651813 March 1972 Bryne
4116199 September 26, 1978 Bryne
5098428 March 24, 1992 Sandlin et al.
5488831 February 6, 1996 Griswold
Other references
  • CRY-AC.RTM. photo of devices in use for more than one year.
Patent History
Patent number: D423666
Type: Grant
Filed: Feb 26, 1998
Date of Patent: Apr 25, 2000
Assignee: Brymill Corporation (Vernon, CT)
Inventor: Thomas A. Griswold (Ellington, CT)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Attorney: M. P. Williams
Application Number: 0/84,205
Classifications
Current U.S. Class: Hand Manipulated Tool Or Instrument (23) (D24/133)
International Classification: 2402;