US 11,730,470 B2
Surgical end effectors with positive jaw opening arrangements
Frederick E. Shelton, IV, Hillsboro, OH (US); Jerome R. Morgan, Cincinnati, OH (US); and Jason L. Harris, Lebanon, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Sep. 17, 2020, as Appl. No. 17/23,901.
Application 17/023,901 is a continuation of application No. 16/157,729, filed on Oct. 11, 2018, granted, now 11,576,669.
Application 16/157,729 is a continuation of application No. 14/742,925, filed on Jun. 18, 2015, granted, now 10,182,818, issued on Jan. 22, 2019.
Prior Publication US 2021/0059665 A1, Mar. 4, 2021
Int. Cl. A61B 17/068 (2006.01); A61B 17/072 (2006.01); A61B 17/10 (2006.01); A61B 90/00 (2016.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01); A61B 34/00 (2016.01)
CPC A61B 17/068 (2013.01) [A61B 17/072 (2013.01); A61B 17/07207 (2013.01); A61B 17/105 (2013.01); A61B 34/71 (2016.02); A61B 2017/0046 (2013.01); A61B 2017/00323 (2013.01); A61B 2017/00327 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/07214 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07278 (2013.01); A61B 2017/07285 (2013.01); A61B 2017/2902 (2013.01); A61B 2017/2927 (2013.01); A61B 2017/2933 (2013.01); A61B 2017/2939 (2013.01); A61B 2017/2943 (2013.01); A61B 2017/2946 (2013.01); A61B 2090/0818 (2016.02)] 26 Claims
OG exemplary drawing
 
1. A surgical instrument, comprising:
an elongate shaft defining a longitudinal shaft axis;
an end effector extending from said elongate shaft, wherein said end effector comprises:
an elongate channel configured to receive a staple cartridge; and
an anvil, wherein said anvil is pivotable relative to said elongate channel between an open position and a closed position; and
a firing member longitudinally movable relative to said end effector during a firing stroke in response to a firing motion transmitted thereto, wherein said firing member comprises:
a body portion comprising a knife blade;
a first cam member extending laterally from said body portion and configured to directly engage said elongate channel during said firing stroke, wherein said first cam member comprises a first proximal end and a first distal end; and
a second cam member extending laterally from said body portion and configured to engage said anvil during said firing stroke, wherein said knife blade is positioned intermediate said first cam member and said second cam member, wherein said second cam member comprises a second proximal end and a second distal end, wherein said second cam member comprises an elongate longitudinal flat section intermediate said second proximal end and said second distal end, wherein said second distal end of said second cam member is positioned distal to said first distal end of said first cam member, and wherein said second proximal end of said second cam member is positioned distal to said first proximal end of said first cam member.