04262676 is referenced by 132 patents and cites 7 patents.

An elongated hollow biopsy needle assembly which includes a cannula, a stylet arranged to be received within the cannula, a finger-gripping means, and coupling means for orienting the stylet within the cannula and for releasably securing both the cannula and the stylet to the finger-gripping means. The cannula is provided with a generally cylindrical hub which has a bore extending axially thereof, and generally in continuation with the bore of the cannula, with a conical syringe receiving counterbore being formed within the proximal end of the hub. The stylet is provided with a cap member, with the distal-facing surface of the cap being arranged to fit snugly against the proximal-facing surface of the cylindrical hub, thereby achieving substantially closed symmetrical mating end surfaces between the cannula and stylet, and a substantially air-tight cannula.

Title
Biopsy needle having integral stylet locking device
Application Number
6/69308
Publication Number
4262676
Application Date
August 24, 1979
Publication Date
April 21, 1981
Inventor
Khosrow Jamshidi
610 Winston Ct., St. Paul, 55118
MN, US
Agent
Thomas J Nikolai
Orrin M Haugen
IPC
A61B 10/00
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