Patent ID: 8365974
Filing Date: 2013-02-05
Classification: A61B

Abstract:
1. A surgical stapling device comprising: a handle assembly; an elongated body portion extending distally from the handle assembly; a shell assembly housing a plurality of staples; an anvil assembly including an anvil head and an anvil center rod, the anvil head being movable relative to the shell assembly; an approximation mechanism, the approximation mechanism movable from a first position to a second position to move the anvil assembly relative to the shell assembly between a spaced position and an approximated position, wherein the approximation mechanism includes a drive screw and a rotatable approximation knob operably connected to the drive screw, wherein the approximation knob is rotatable to move the anvil assembly between its spaced and approximated positions; a firing mechanism for advancing staples from the shell assembly, the firing mechanism actuable when the approximation assembly is in the second position and the anvil assembly is in the approximated position; and a lockout mechanism operatively associated with the approximation mechanism, the lockout mechanism movable from a non-blocking position to a blocking position, wherein in the non-blocking position the approximation mechanism is movable from the first position to the second position and in the blocking position movement of the approximation mechanism from the second position to the first position is prevented.