Patent ID: 8535240
Filing Date: 2013-09-17
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, the distal end of the coring cannula having a cutting edge; and, a stylet having a stylet tip and a stylet blade mechanism and being coupled to the coring cannula, the stylet blade mechanism having at least one stylet blade and being coupled to the stylet tip, the stylet blade mechanism being movable between a cutting position and a retracted position, the at least one stylet blade being located a distance in front of the stylet tip when the stylet blade mechanism is in the cutting position, the at least one stylet blade being located within the stylet tip when the stylet blade mechanism is in the retracted position.