05458112 is referenced by 165 patents and cites 9 patents.

A surgical instrument assembly for use in a biopsy operation includes a flexible tube having a pair of opposed ends and a substantially rigid, cylindrical cutter having a distal end, a proximal end secured to one of the opposed tube ends for longitudinal movement therewith, and a sidewall connecting the distal and proximal ends. The cutter sidewall defines at least one recess having a barb at the outer distal end thereof for separating biopsy tissue from a patient and maintaining the separated tissue in the recess during movement of the cutter. The other of the opposed tube ends is optionally operatively securable to a vacuum source for applying a vacuum to the recess via a longitudinal cavity in the tube and cutter member. An unloading stylet may be disposed within the longitudinal cavity in the cutter for sliding movement relative thereto between a proximal position relative to the recess and a distal position within the recess, whereby movement of the unloading stylet from the proximal position to the distal position ejects from the recess any separated tissue therein.

Biliary biopsy device
Application Number
Publication Number
Application Date
August 15, 1994
Publication Date
October 17, 1995
George W Weaver
East Earl
Amster Rothstein & Ebenstein
Arrow Precision Products
A61B 10/00
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