Infusion cannula for ophthalmic surgery

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Description

FIG. 1 is a perspective view of an infusion cannula for ophthalmic surgery showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3721229 March 1973 Panzer
3726284 April 1973 Parker
4368738 January 18, 1983 Tersteegen et al.
4400169 August 23, 1983 Stephen
4533349 August 6, 1985 Bark
Patent History
Patent number: D297046
Type: Grant
Filed: Feb 24, 1986
Date of Patent: Aug 2, 1988
Inventors: Bernard J. Dignam, deceased (late of Belvedere, CA), by Bonnie M. Dignam, executrix (Belvedere, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: Townsend and Townsend
Application Number: 6/836,613
Classifications
Current U.S. Class: D24/8; D24/53