Spinal cannula with hollow needle mandrel and holding grip

Description

FIG. 1 is a perspective view of my new spinal cannula design with hollow needle, mandrel and holding grip;

FIG. 2 is a perspective view of the design of FIG. 1 without the hollow needle, mandrel and holding grip;

FIG. 3 is a front view of the design of FIG. 1 showing the mandrel and holding grip in a retracted position;

FIG. 4 is a view similar to FIG. 3 showing the mandrel and holding grip in a non-retracted position;

FIG. 5 is a front view of the spinal cannula without mandrel, hollow needle and holding grip;

FIG. 6 is a right side view of the spinal cannula without mandrel, hollow needle and holding grip, the left side view being identical;

FIG. 7 is a bottom view of the spinal cannula without hollow needle, mandrel and holding grip;

FIG. 8 is a bottom view of the spinal cannula without hollow needle, mandrel and holding grip;

FIG. 9 is a top view of the spinal cannula without hollow needle, mandrel and holding grip;

FIG. 10 is a bottom view of the spinal cannula with hollow needle, mandrel and holding grip; and,

FIG. 11 is a rear end view of the spinal cannula with hollow needle, mandrel and holding grip.

Claims

The ornamental design for a spinal cannula with hollow needle mandrel and holding grip, as shown and described.

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Inventors:	Krebs; Peter (78048 VS-Villingen, DE)
Appl. No.:	D/024,128
Filed:	June 8, 1994

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Foreign Application Priority Data

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Mar 29, 1994 [DE]			94 02 578.9

Current U.S. Class:	D24/112
Field of Search:	;D24/146,112,130,147,114 ;128/751,753,754,755 ;604/164,158,170,264,165,168,167,281

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References Cited [Referenced By]

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U.S. Patent Documents

D302589	August 1989	McMenamy et al.
D303290	September 1989	McMenamy et al.
D342995	January 1994	Simmons
D353454	December 1994	Coombs
4137916	February 1979	Killman et al.
4308875	January 1982	Young
4356828	November 1982	Jamshidi
4585444	April 1986	Harris
4609370	September 1986	Morrison
4721506	January 1988	Teves
4828549	May 1989	Kvalo
4846799	July 1989	Tanaka et al.
4994036	February 1991	Biscoping et al.
5030205	July 1991	Holdaway et al.
5100390	March 1992	Lubeck et al.
5104381	April 1992	Gresl et al.
5106376	April 1992	Mononen et al.
5116323	May 1992	Kreuzer et al.
5161542	November 1992	Palestrant
5250035	October 1993	Smith et al.
5306259	April 1994	Fischell et al.

Primary Examiner: Zarfas; Louis S.
Assistant Examiner: Simmons; I.
Attorney, Agent or Firm: McGlew and Tuttle