US 9,808,249 B2
Attachment portions for surgical instrument assemblies
Frederick E. Shelton, IV, Hillsboro, OH (US)
Assigned to Ethicon LLC, Guaynabo, PR (US)
Filed by Ethicon Endo-Surgery, Inc., Cincinnati, OH (US)
Filed on Aug. 23, 2013, as Appl. No. 13/974,205.
Prior Publication US 2015/0053740 A1, Feb. 26, 2015
Int. Cl. A61B 17/072 (2006.01)
CPC A61B 17/07207 (2013.01) [A61B 2017/07214 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A surgical stapler assembly, comprising:
a disposable end effector comprising a distal attachment portion, wherein said distal attachment portion comprises:
a lock notch; and
a longitudinal guide rail; and
a surgical instrument, comprising:
a proximal attachment portion structured to receive said distal attachment portion, wherein said distal attachment portion is moveable between a non-inserted position and an inserted position relative to said proximal attachment portion, and wherein said proximal attachment portion comprises a longitudinal guide slot configured to receive said longitudinal guide rail as said distal attachment portion moves between said non-inserted position and said inserted position; and
a rotatable collar that is rotatable relative to said proximal attachment portion between a locked position and an unlocked position, wherein said collar is biased toward said locked position and is structured to rotate from said locked position to said unlocked position, wherein said distal attachment portion causes said rotatable collar to rotate from said locked position to said unlocked position when said distal attachment portion moves from said non-inserted position toward said inserted position, and wherein said collar comprises a detent structured to move into said lock notch when said collar rotates from said unlocked position to said locked position and when said distal attachment portion is in said inserted position.