US 10,888,326 B2
Surgical stapler with expandable jaw
Jonathan Covach, Mission Viejo, CA (US); Matthew M. Becerra, Lake Forest, CA (US); and Gary M. Johnson, Rancho Santa Margarita, CA (US)
Assigned to Applied Medical Resources Corporation, Rancho Santa Margarita, CA (US)
Filed by Applied Medical Resources Corporation, Rancho Santa Margarita, CA (US)
Filed on Oct. 19, 2017, as Appl. No. 15/788,118.
Application 15/788,118 is a continuation of application No. 14/211,570, filed on Mar. 14, 2014, granted, now 9,820,742.
Claims priority of provisional application 61/793,065, filed on Mar. 15, 2013.
Prior Publication US 2018/0036005 A1, Feb. 8, 2018
Int. Cl. A61B 17/072 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/07207 (2013.01) [A61B 2017/0046 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/07257 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A surgical stapler comprising:
an elongate shaft having a proximal end and a distal end and defining a longitudinal axis between the proximal end and the distal end;
a handle assembly disposed at the proximal end of the elongate shaft;
an actuation mechanism actuatable by the handle assembly, the actuation mechanism comprising an actuation beam longitudinally slidable in the elongate shaft, the actuation beam comprising a first guide and a second guide formed thereon; and
a jaw assembly disposed at the distal end of the elongate shaft, the jaw assembly comprising:
a first jaw defining a first clamping surface, the first jaw comprising a first guide slot extending longitudinally therein, the first guide of the actuation beam slidably positioned in the first guide slot;
a second guide slot comprising an opening segment and a firing transition segment, the second guide of the actuation beam slidably positionable in the second guide slot;
a second jaw defining a second clamping surface, the second jaw comprising a third guide slot extending longitudinally therein, the second guide of the actuation beam slidably positionable in the third guide slot; and
a plurality of staples positioned in the first jaw,
wherein the jaw assembly is actuatable by longitudinal movement of the actuation beam between a closed position in which the first clamping surface contacts the second clamping surface, an open position in which the second clamping surface extends at an angle transverse to the first clamping surface, and a stapling position in which the first clamping surface extends parallel to the second clamping surface and is spaced apart from the second clamping surface.