Patent ID: 7559940

Claim:
A surgical punch comprising: an actuating rod; a first jaw having a first cutting edge; a second jaw having a second cutting edge, the surgical punch having a proximal region and a distal region, the first and second jaws being located at the distal region; and a coupling member coupling the actuating rod, the first jaw, and the second jaw, the coupling member including a non-circular, arcuate flange and an arcuate groove configured to bring the first and second jaws towards each other when actuated, the coupling member further including a pin movably coupling the first jaw to the actuating rod, wherein the second jaw defines a slot having a closed plane bounded by the second jaw, the slot configured to allow arcuate movement of the pin between proximal to distal ends of the slot as the actuating rod is actuated, the length of the closed plane along a proximal to distal axis of the surgical punch being different from the length of the closed plane along a second axis transverse to the proximal to distal axis.