A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
128/113
A61B 17/14 (2006.01) A61B 10/00 (2006.01)
Patent
CA 1185861
ABSTRACT OF THE DISCLOSURE Needle for bone marrow biopsies at the sternum or iliac of the body or the like including a cannula, a cannula housing supporting the cannula including a partially threaded lower member, a stylet including a stylet cap supporting the stylet and a threaded depth stop for engaging over the cannula wherein the stylet engages into the cannula in a predetermined relationship, the stylet cap interlocks to the cannula housing, and the threaded member determines the depth of penetration of the needle. The sternum needle is constructed to be either disposable or reusable depending upon the cannula housing and stylet cap material. The cannula housing includes vertical wings extending outwardly from the housing for engagement with the palm of a physician's hand, a cannula clip having ends which are soldered onto the cannula and secure into the cannula housing, and an elongated button extending outwardly from the top of the cannula housing for detent locking with the stylet cap providing for alignment of the stylet to the cannula of the sternum needle. The stylet includes a longitudinal member having a ground and buffed bevelled end maintaining a knife-sharp edge around the tip, and the other end of the stylet is bent and molded into the stylet cap where the stylet cap includes a spring detent locking groove for interlocking with the button of the cannula housing. The stylet cap is rounded at the top and includes vertical grooves for gripping during locking and unlocking. The stylet inserts into the cannula and with a twist locks about the top of the cannula with a positive digital sensory feedback signal to the physician. The depth stop includes lower portion digitory sockets for the fingers and a knurled circumference upper portion. The needle can be used with or without the depth stop as desired.
418302
Creative Research And Manufacturing Inc.
Smart & Biggar
LandOfFree
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