US 12,295,577 B2
Tissue cushion adjuncts for surgical stapler end effector
Christopher Q. Seow, Cincinnati, OH (US); Gregory J. Bakos, Mason, OH (US); Michael J. Vendely, Lebanon, OH (US); Jason L. Harris, Lebanon, OH (US); Mark S. Zeiner, Mason, OH (US); Andréas N. Ward, Cincinnati, OH (US); and Adam D. Hensel, Cincinnati, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Mar. 25, 2022, as Appl. No. 17/704,075.
Prior Publication US 2023/0301656 A1, Sep. 28, 2023
Int. Cl. A61B 17/072 (2006.01); A61B 17/068 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/07292 (2013.01) [A61B 17/0686 (2013.01); A61B 2017/00951 (2013.01); A61B 2017/07264 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
(a) a first jaw, wherein the first jaw comprises an anvil defining a plurality of fastener forming features;
(b) a second jaw, wherein the first jaw and the second jaw are configured to actuate relative to each other between an open position and a closed position to grasp tissue, wherein the second jaw comprises a fastening assembly comprising:
(i) a deck defining a plurality of openings, and
(ii) a plurality of fasteners, wherein each fastener of the plurality of fasteners is housed within a respective opening of the plurality of openings;
(c) a firing driver configured to actuate the plurality of fasteners out of the plurality of openings and against the plurality of fastener forming features;
(d) a first buttress associated with the anvil, wherein the first buttress comprises:
(i) a first material,
(ii) a first thickness,
(iii) a rigid base comprising an undulating surface formed by consecutive concave and convex sections of a wavelike pattern, the concave and convex sections being directly connected to each other, wherein the first material is attached to the rigid base adjacent to the undulating surface, wherein the first material is configured to deform toward the undulating surface to thereby cooperatively inhibit tissue flow relative to the deck in the closed position prior to the firing driver actuating the plurality of fasteners out of the plurality of openings; and
(e) a second buttress associated with the deck, wherein the second buttress comprises a second material and a second thickness, wherein the first material and the second material differ in rigidity, wherein the first thickness and the second thickness are different.