| 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)] | 18 Claims |
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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 defining a dog-bone shape, wherein the annular deck member includes:
(A) a deck surface configured to contact a tissue defining a select one of the two lumens, wherein the deck surface includes a width that extends transversely to a central axis of the stapling head assembly, wherein the deck surface of the deck member comprises a first portion and a second portion,
(B) an annular array of staple openings formed through the deck surface, and
(C) an alignment feature configured to align the deck surface of the deck member with a linear feature of the tissue defining the select one of the two lumens, wherein the alignment feature extends the width of the deck surface and transversely to the central axis to thereby define a plane extending along the width, wherein the alignment feature separates the first portion and the second portion;
(ii) a staple driver operable to drive staples through the annular array of staple openings; and
(d) an anvil configured to deform the staples driven by the staple driver to form an annular staple pattern configured to connect the two lumens.
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