Needle head for a biopsy cannula

- DLP, Inc.
Description

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

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being identical thereto;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end elevational view thereof; and,

FIG. 6 is an end elevational view thereof, opposite that shown in FIG. 5.

The broken line showing of the cannula in FIGS. 1-4 is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D306070 February 13, 1990 Akerfeldt
D309014 July 3, 1990 Akerfeldt
2850007 May 1956 Lingley
3454006 January 1966 Langdon
4609370 September 2, 1986 Morrison
4699154 October 13, 1987 Lindgren
4721506 January 26, 1988 Teves
5121751 June 16, 1992 Panalletta
Foreign Patent Documents
1175889 November 1958 FRX
Patent History
Patent number: D333003
Type: Grant
Filed: Jul 31, 1990
Date of Patent: Feb 2, 1993
Assignee: DLP, Inc. (Grand Rapids, MI)
Inventor: Kenneth E. Chettleburgh (Sparta, MI)
Primary Examiner: Stella Reid
Assistant Examiner: I. Simmons
Law Firm: Barnes, Kisselle, Raisch, Choate, Whittemore & Hulbert
Application Number: 7/560,327