US 11,806,011 B2
Stapling instrument comprising tissue compression systems
Gregory J. Bakos, Mason, OH (US); and Frederick E. Shelton, IV, Hillsboro, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Mar. 22, 2021, as Appl. No. 17/208,397.
Prior Publication US 2022/0296237 A1, Sep. 22, 2022
Int. Cl. A61B 17/072 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01)
CPC A61B 17/072 (2013.01) [A61B 2017/0042 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00407 (2013.01); A61B 2017/07264 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07278 (2013.01); A61B 2017/07285 (2013.01); A61B 2017/2943 (2013.01); A61B 2017/2946 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A surgical stapling instrument, comprising:
an end effector, comprising:
a cartridge jaw;
an anvil rotatable relative to said cartridge jaw between an open position and a clamped position about a jaw pivot, wherein said anvil comprises:
a proximal portion;
a distal end; and
a longitudinal shoulder comprising a ramp adjacent said proximal portion;
an end effector frame;
a closure actuator rotatably mounted to said end effector frame about a pivot pin, wherein said closure actuator comprises a closure arm extending distally relative to said pivot pin and a compression arm extending proximally relative to said pivot pin and proximally relative to said jaw pivot; and
a spring positioned intermediate said proximal portion of said anvil and said compression arm, wherein said spring is proximal to said jaw pivot; and
a firing head movable distally during a closure stroke to move said anvil into said clamped position and distally during a staple firing stroke to eject staples from a staple cartridge positioned in said cartridge jaw, wherein said firing head comprises:
a first cam configured to engage said cartridge jaw during said staple firing stroke;
a second cam, wherein said second cam is not engaged with said longitudinal shoulder of said anvil during said closure stroke, wherein said second cam is configured to engage said closure arm of said closure actuator during said closure stroke to rotate said compression arm toward said proximal portion of said anvil and push said anvil into said clamped position via said spring, wherein said second cam is engaged with said longitudinal shoulder during said staple firing stroke, and wherein said first cam and said second cam co-operatively hold said anvil in position relative to said cartridge jaw during said staple firing stroke; and
a tissue cutting knife.