Patent ID: 8597202
Filing Date: 2013-12-03
Classification: A61B

Abstract:
1. A biopsy device, comprising: a housing; a coring cannula having a distal end, a longitudinal axis and being centered on the axis and coupled to the housing, the coring cannula rotatable about the axis, a reduced diameter portion being formed at the distal end; an external cutting ring having an interior bore with an interior diameter, the external cutting ring being fitted over the reduced diameter portion of the coring cannula, the external cutting ring having a distal end forming a coring cannula cutting edge; a mechanism, located at the distal end of the external cutting ring, for transecting a tissue sample contained within the coring cannula and being coupled to an inner surface of the bore near the distal end of cutting ring, and being removably held in place by at least one tab, the at least one tab being coupled to the external cutting ring.