Biopsy needle having integral stylet locking device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 21, 1981
Grant Date -
N/A
app pub date -
Aug 24, 1979
filing date -
Aug 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully