Cannula

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Description

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

FIG. 2 is a top plan view thereof, the bottom plan view being identical;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being identical; and

FIG. 5 is an end elevational view thereof, opposite that shown in FIG. 3.

Referenced Cited
U.S. Patent Documents
3729031 April 1973 Baldwin
3729032 April 1973 Tischlinger
3876234 April 1975 Harms
4266815 May 12, 1981 Cross
4346703 August 31, 1982 Dennehey et al.
4369781 January 25, 1983 Gilson et al.
4452473 June 5, 1984 Ruschke
Patent History
Patent number: D321250
Type: Grant
Filed: Mar 7, 1989
Date of Patent: Oct 29, 1991
Assignee: Baxter International Inc. (Deerfield, IL)
Inventors: Steve C. Jepson (Palatine, IL), Thomas E. Dudar (Palatine, IL), Vince C. Desecki (Ingleside, IL), Peter Graham (Wildwood, IL)
Primary Examiner: Stella Reid
Attorneys: Paul C. Flattery, Amy L. H. Rockwell, Paul E. Schaafsma
Application Number: 7/320,244