US 11,896,232 B2
Tissue stabilizing features for circular surgical stapler
Ryan J. Laurent, Loveland, OH (US); Bradley A. Arnold, Mason, OH (US); Taylor W. Aronhalt, Loveland, OH (US); Sean M. Starrett, Baltimore, OH (US); Logan R. Rose, Loveland, OH (US); and Anthony Nguyen, West Chester, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Nov. 24, 2021, as Appl. No. 17/534,653.
Prior Publication US 2023/0157693 A1, May 25, 2023
Int. Cl. A61B 17/3205 (2006.01); A61B 17/115 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 17/3205 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
(a) a stapling assembly including:
(i) a deck member having a deck surface that faces distally and includes a plurality of staple openings configured to receive a plurality of staples, and
(ii) a knife member having a distal end that defines a cutting edge; and
(b) an anvil configured to cooperate with the stapling assembly to compress, staple, and cut tissue, wherein the anvil includes:
(i) an anvil surface having a plurality of staple forming pockets configured to form the staples, and
(ii) a washer positioned adjacent to the anvil surface and having a proximal face, wherein the cutting edge of the knife member is configured to cut through the tissue and the proximal face when the surgical instrument is fired,
wherein the proximal face includes a tissue gripping feature configured to stabilize and inhibit the tissue from translating across the washer and the anvil surface during firing.