US 11,911,039 B2
Circular surgical stapler having staples with expandable crowns
Chad P. Boudreaux, Cincinnati, OH (US); Jeffrey L. Aldridge, Lebanon, OH (US); Nicholas M. Morgan, West Chester, OH (US); Michael J. Stokes, Cincinnati, OH (US); Marissa T. Kamenir, Cincinnati, OH (US); John K. Bruce, Morrow, OH (US); John S. Kimsey, Walton, KY (US); and Yvan D. Nguetio Tchoumkeu, Blue Ash, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Aug. 13, 2021, as Appl. No. 17/401,451.
Prior Publication US 2023/0051659 A1, Feb. 16, 2023
Int. Cl. A61B 17/064 (2006.01); A61B 17/115 (2006.01); A61B 17/072 (2006.01); A61B 17/11 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 17/0644 (2013.01); A61B 2017/07228 (2013.01); A61B 2017/07264 (2013.01); A61B 2017/07285 (2013.01); A61B 17/1114 (2013.01); A61B 2017/1132 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for creating an anastomosis between two lumens, comprising:
(a) a body;
(b) a shaft extending distally from the body;
(c) a stapling head assembly positioned at a distal end of the shaft, wherein the stapling head assembly includes:
(i) an annular deck member, wherein the annular deck member includes:
(A) a deck surface configured to contact a tissue defining a select one of the two lumens,
(B) an annular array of staple openings formed through the deck surface, and
(C) a plurality of staples configured to travel through the staple openings, each staple of the plurality of staples comprising a crown having a pair of straight portions and an angled central portion that interconnects inner ends of the straight portions such that the straight portions extend angularly relative to one another, and a pair of legs extending from outer ends of the straight portions of the crown, wherein each staple is expandable between a first configuration and a second configuration, wherein in the second configuration a distance between the pair of legs is greater than in the first configuration;
(ii) a staple driver operable to drive the plurality of staples through the annular array of staple openings; and
(d) an anvil configured to deform the staples driven by the staple driver to form a ring-shaped staple pattern configured to connect the two lumens.