Stylet for a bone marrow biopsy needle

- Baxter International Inc.
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a stylet of this invention;

FIG. 2 is an elevational view of the needle of FIG. 1 when viewed from either the front or back;

FIG. 3 is a side elevational view of the needle of FIG. 1 when viewed from either the right or left;

FIG. 4 is a top view of the needle of FIG. 1;

FIG. 5 is a bottom view of the stylet of FIG. 1 and of the stylet of FIG. 6;

FIG. 6 is a perspective view of a second embodiment of a stylet showing our new design;

FIG. 7 is a side elevational view of the needle of FIG. 6 when viewed from either the front or back;

FIG. 8 is a side elevational view of the stylet of FIG. 6 when viewed from either the right or from the left; and,

FIG. 9 is a top view of the stylet of FIG. 6.

Referenced Cited
U.S. Patent Documents
3893445 July 1975 Hofsess
4262676 April 21, 1981 Jamshidi
4266555 May 12, 1981 Jamshidi
4314565 February 9, 1982 Lee
4356828 November 2, 1982 Jamshidi
4469109 September 4, 1984 Mehl
4630616 December 23, 1986 Tretinyak
4721506 January 26, 1988 Teves
4793363 December 27, 1988 Ausherman et al.
4838282 June 13, 1989 Strasser et al.
4969870 November 13, 1990 Kramer et al.
4994036 February 19, 1991 Biscoping et al.
5078695 January 7, 1992 Farrar, Jr. et al.
5106376 April 21, 1992 Mononen et al.
5147308 September 15, 1992 Singer
5151086 September 29, 1992 Duh et al.
5250035 October 5, 1993 Smith et al.
5257632 November 2, 1993 Turkel et al.
5263436 November 23, 1993 Turino
5279306 January 18, 1994 Mehl
5282477 February 1, 1994 Bauer
5331972 July 26, 1994 Wadhwani et al.
5357974 October 25, 1994 Baldridge
Patent History
Patent number: D379515
Type: Grant
Filed: Jun 17, 1994
Date of Patent: May 27, 1997
Assignee: Baxter International Inc. (Deerfield, IL)
Inventors: Stephen Kuehn (Franklin, WI), Terrence W. Snyder (Chenango Forks, NY)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: I. Simmons
Attorneys: Robert Stenzel, Allan Maki
Application Number: 0/24,604
Classifications
Current U.S. Class: Cutting, Abrading, Scraping Or Puncturing (31) (D24/146)
International Classification: 2402;