Locking cannula

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Description

FIG. 1 is a perspective view of a locking cannula, showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side elevational view being identical;

FIG. 3 is a top plan view thereof, the bottom plan view being identical;

FIG. 4 is an end elevational view thereof, taken from the left of FIG. 2; and

FIG. 5 is an end elevational view thereof, taken from the right of FIG. 2.

Referenced Cited
U.S. Patent Documents
D204670 May 1966 Gilson
D313277 December 25, 1990 Haining
4759756 July 26, 1988 Forman et al.
4946455 August 7, 1990 Rosen
Patent History
Patent number: D321252
Type: Grant
Filed: Mar 7, 1989
Date of Patent: Oct 29, 1991
Assignee: Baxter International Inc. (Deerfield, IL)
Inventors: Steven C. Jepson (Palatine, IL), Thomas E. Dudar (Palatine, IL), Vince C. Desecki (Ingleside, IL), Peter Graham (Wildwood, IL), Michael J. Finley (Park City, IL)
Primary Examiner: Stella Reid
Attorneys: Paul C. Flattery, Amy L. H. Rockwell, Paul E. Schaafsma
Application Number: 7/320,246