Patent ID: 8394120
Filing Date: 2013-03-12
Classification: A61B

Abstract:
1. An end effector assembly with increased clamping force for a surgical instrument comprising: (a) a hollow shaft having a proximal end and a distal end; (b) a clevis coupled to the distal end of the hollow shaft; (c) at least one deflection member integral with the clevis; (d) a procedural member assembly rotatably coupled to the clevis; (e) at least one actuation means attached to the procedural member assembly at an actuating hole and slidable relative to the hollow shaft for rotationally moving the procedural member assembly about a pivot point between a closed and an open position wherein the at least one deflection member integral with the clevis deflects inwards at least one actuation means changing the distribution of the loading force in the end effector assembly resulting in increased clamping force; the clamping force being defined as a force acting on the procedural member assembly at the actuating hole and perpendicular to a line defined by the centers of actuation and pivoting of the procedural member assembly, the value of the clamping force described by function: F