Bellows for surgical drainage

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Description

FIG. 1 is a front elevational view of a bellows for surgical drainage showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D195613 July 1963 Picker
D198857 August 1964 Rabin
D204353 April 1966 Magers
D237549 November 1975 Tillander et al.
D237655 November 1975 Engelsher
2397257 March 1946 Goland et al.
2902992 September 1959 Renvall
2947470 August 1960 Ruben
3084691 April 1963 Stoner
3115138 December 1960 McElvenny et al.
3572340 March 1971 Lloyd et al.
3752158 August 1973 Kariber
3809087 May 1974 Lewis, Jr.
4068662 January 17, 1978 Sneider
4386607 June 7, 1983 Miller
4397643 August 9, 1983 Rygiel
Foreign Patent Documents
351785 December 1972 SEX
Patent History
Patent number: D305065
Type: Grant
Filed: Aug 22, 1986
Date of Patent: Dec 12, 1989
Assignee: Astra Meditec Akteibolag (Molndal)
Inventors: Udo P. Buchel (Billdal), Kjell I. Wellenstam (Gothenburg)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: White & Case
Application Number: 6/899,526
Classifications
Current U.S. Class: D24/51