US 11,737,759 B2
Surgical stapling device accommodating prolapsed tissue
Robert H. Knapp, Middlebury, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Aug. 5, 2021, as Appl. No. 17/394,789.
Prior Publication US 2023/0041791 A1, Feb. 9, 2023
Int. Cl. A61B 17/11 (2006.01); A61B 17/115 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 17/1114 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical stapling device comprising:
a handle assembly including a firing trigger and an approximation knob;
an elongate body having a proximal portion and a distal portion, the proximal portion coupled to the handle assembly; and
an end effector coupled to the distal portion of the elongate body, the end effector including an anvil assembly and a shell assembly, the anvil assembly including an anvil plate and anvil rods that extend proximally from the anvil plate and are positioned about the shell assembly, the anvil plate having a proximally facing surface that defines staple forming pockets, the shell assembly including a shell housing defining a cavity, an annular pusher that is movable within the cavity from a retracted position to an advanced position, an annular staple cartridge, and an annular knife blade, the staple cartridge including staple receiving pockets that receive staples, the knife blade being secured to the pusher radially outwardly of the staple receiving pockets.