Patent ID: 8597201
Filing Date: 2013-12-03
Classification: A61B

Abstract:
1. A biopsy device, comprising: a housing; a coring cannula having a longitudinal axis and being centered on the axis and coupled to the housing, the coring cannula configured to rotate about the axis; and, a flexible transection blade having a first end and a second end and being coupled to the coring cannula, the second end configured to form cutting edge, the flexible transection blade having a first blade position and a second blade position, the coring cannula configured to move along the axis from an initial cannula location towards a final cannula location in response to rotation of the coring cannula about the axis in a first direction, the flexible transection blade being in the first blade position while the coring cannula is between the initial and final cannula locations, wherein the flexible transection blade is configured to move from the first blade position to the second blade position during rotation of the coring cannula in the first direction while the coring cannula is at the final cannula location and configured to be at least partly contained within the coring cannula when the coring cannula is between the initial position and the final position, wherein motion of the flexible transection blade from the first blade position to the second blade position is configured to advance the transection blade past the coring cannula.