Needle head for biopsy cannula

- C. R. Bard, Inc.
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Description

FIG. 1 is a top perspective view of a needle head for biopsy cannula, showing my new design;

FIG. 2 is a bottom perspective view thereof; and

FIG. 3 is an elevational view of the end opposite that shown in FIGS. 1 and 2.

The broken line showing of the cannula in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
1867624 July 1932 Hoffman
3175554 March 1965 Stewart
3995619 December 7, 1976 Glatzer
4178810 December 18, 1979 Takahashi
4476864 October 16, 1984 Tezel
4570632 February 18, 1986 Woods
4600014 July 15, 1986 Beraha
4609370 September 2, 1986 Morrison
4685904 August 11, 1987 Krebs
4702261 October 27, 1987 Cornell et al.
4735215 April 5, 1988 Goto et al.
4766907 August 30, 1988 de Groot et al.
4776346 October 11, 1988 Beraha et al.
Foreign Patent Documents
0010321 April 1980 EPX
0141108 April 1980 DEX
175611 March 1966 SUX
Patent History
Patent number: D306070
Type: Grant
Filed: Mar 20, 1987
Date of Patent: Feb 13, 1990
Assignee: C. R. Bard, Inc. (Murray Hill, NJ)
Inventor: Dan Akerfeldt (Upsala)
Primary Examiner: A. Hugo Word
Assistant Examiner: Stella M. Reid
Law Firm: Jones, Askew & Lunsford
Application Number: 7/28,322
Classifications
Current U.S. Class: D24/25