Surgery – Truss – Pad
Patent
1991-12-16
1993-08-17
Hindenburg, Max
Surgery
Truss
Pad
A61B 1000
Patent
active
052363341
ABSTRACT:
Core biopsy needle units used with automated biopsy guns are disclosed. The needle units comprise an elongate solid needle having a notch formed adjacent to the end of the needle. A hub is securely attached to the other end of the needle. An elongate cannula is received over the notched end of the needle such that the needle slides longitudinally through the cannula. A second hub is securely attached to the first end of the cannula, and engagement means are formed in the hub on the needle. The hub on the needle and the second hub on the cannula are adapted to be received in respective receiver cavities of an automated biopsy gun, with the engagement means in the hub on the needle making firm, releasable, interlocking engagement with corresponding engagement means associated with the receiver cavity in which the hub on the needle is received. In addition, a mechanism is provided for releasably interlocking the needle and cannula at a proper position and orientation for insertion into the receiver cavities of an automated biopsy gun. The mechanism is released once the needle unit is properly received in the biopsy gun to allow telescopic movement of the needle within the cannula.
REFERENCES:
patent: 4917100 (1990-04-01), Nottke
patent: 5036860 (1991-08-01), Leigh et al.
patent: 5127419 (1992-07-01), Kaldany
Crellin Terry M.
Hindenburg Max
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