US 12,329,441 B2
Two-stage electrosurgical device for vessel sealing
Huisun Wang, Maple Grove, MN (US); Kester Julian Batchelor, Mound, MN (US); and Zane R. Ward, Minneapolis, MN (US)
Assigned to Gyrus ACMI, Inc., Westborough, MA (US)
Filed by GYRUS ACMI, INC., Westborough, MA (US)
Filed on Jul. 19, 2021, as Appl. No. 17/306,000.
Application 17/306,000 is a continuation of application No. 15/602,601, filed on May 23, 2017, granted, now 11,076,908.
Claims priority of provisional application 62/344,749, filed on Jun. 2, 2016.
Claims priority of provisional application 62/407,732, filed on Oct. 13, 2016.
Prior Publication US 2021/0338314 A1, Nov. 4, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 17/28 (2006.01); A61B 17/29 (2006.01); A61B 18/00 (2006.01); A61B 18/12 (2006.01)
CPC A61B 18/1445 (2013.01) [A61B 2017/2825 (2013.01); A61B 2017/2926 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/0063 (2013.01); A61B 18/12 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1455 (2013.01); A61B 2018/1457 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A forceps comprising:
an end effector assembly comprising:
a first jaw including:
an upper body defining an upper compression surface; and
an upper medial section having an upper tissue sealing surface that extends below the upper compression surface, the upper medial section movable relative to the upper body; and
a second jaw movable together with the first jaw between an open position and a closed position, the second jaw including:
a lower body defining a lower compression surface;
a lower medial section having a lower tissue sealing surface that extends above the lower compression surface, the lower medial section movable relative to the lower body, wherein the upper body, the lower body, the upper medial section, and the lower medial section together define a blade slot to receive an axial blade therein,
wherein the tissue sealing surface of at least one of the first jaw and the second jaw has a distal section and a proximal section that form separate compression zones.