Surgery – Truss – Pad
Patent
1987-03-02
1988-11-22
Coven, Edward M.
Surgery
Truss
Pad
128310, 30174, 30278, 408204, 408207, 408703, A61B 1000
Patent
active
047858265
ABSTRACT:
This invention relates to an instrument of a type known variously a a biopsy needle or cannula and used to gather tissue, and particularly soft tissue such as bone marrow, from living persons or animals for pathological study. The instrument retains a gathered tissue specimen by closing the end of a hollow member while the member is in the gathering position, and more particularly by deforming a flexible portion of the member. A pair of members are employed, one moving within the other. By a particular cooperation between the members, a flexible portion of the inner member is displaced or deformed to occlude an open, tissue receiving end thereof and thereby capture tissue and retain it against loss on removal of the instrument from the body of tissue into which it has been thrust.
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Citrin Randy
Coven Edward M.
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