Patent ID: 6280459
Filing Date: 2001-08-28
Classification: A61B

Abstract:
A surgical instrument for cutting tissue comprisinga shaft having proximal and distal ends,a cutter coupled to the distal end of the shaft and formed to include a base having an complimentary aperture providing two curved cutting edges, a slider positioned to lie adjacent the base, and a tip having curved cutting edges and being coupled to the base and the slider, and the cutter formed to move between a fully open position in which the curved cutting edges of the tip form an obtuse angle relative to the shaft and a fully closed position in which the tip is received within the aperture of the base, anda handle coupled to the proximal end of the shaft and arranged to move the slider forward toward the distal end of the shaft to cause the tip to rotate counter-clockwise toward the proximal end of the shaft from the open to the closed positions.