Patent ID: 7726537
Filing Date: 2010-06-01
Classification: A61B

Abstract:
1. A tool assembly comprising: an anvil and a cartridge assembly, the cartridge assembly having a plurality of staples and being movable in relation to the anvil between an open position and an approximated position, the cartridge assembly and the anvil defining a tissue gap in the approximated position; a clamp collar positioned adjacent the proximal end of the cartridge assembly and the anvil and being movable from a first position to a second position to effect movement of the anvil in relation to the cartridge assembly from the open position towards the approximated position, wherein in the second position, the clamp collar is positioned about the proximal ends of the cartridge assembly and anvil; a dynamic clamping member movably positioned in relation to the anvil and the cartridge assembly from a first position located at a proximal end of the tool assembly to a second position located at a distal end of the tool assembly, the dynamic clamping member being configured to slidably engage the anvil and the cartridge assembly to define a maximum tissue gap between the anvil and the cartridge assembly adjacent the dynamic clamping member during ejection of the plurality of staples from the cartridge assembly; and at least one pulley operatively associated with the dynamic clamping member to effect movement of the dynamic clamping member from the first position to the second position to effect ejection of staples from the cartridge assembly.