US 11,779,384 B2
Combination electrosurgical device
Kester J. Batchelor, Mound, MN (US); Nikhil M. Murdeshwar, Maple Grove, MN (US); Jyue Boon (Jonas) Lim, New Brighton, MN (US); Dennis G. Lamser, Marlborough, MA (US); Tsuyoshi Hayashida, Maple Grove, MN (US); Richard J. Curtis, Maple Grove, MN (US); Theodore Blus, Shoreview, MN (US); Riyad Moe, Madison, WI (US); and Ryan Windgassen, Nowthen, MN (US)
Assigned to Gyrus ACMI, Inc., Westborough, MA (US)
Filed by GYRUS ACMI, INC., Southborough, MA (US)
Filed on Apr. 25, 2019, as Appl. No. 16/395,142.
Application 16/395,142 is a continuation of application No. 15/235,506, filed on Aug. 12, 2016, granted, now 10,271,895.
Application 15/235,506 is a continuation of application No. 14/210,535, filed on Mar. 14, 2014, granted, now 9,452,009, issued on Sep. 27, 2016.
Claims priority of provisional application 61/864,157, filed on Aug. 9, 2013.
Claims priority of provisional application 61/787,731, filed on Mar. 15, 2013.
Prior Publication US 2019/0247110 A1, Aug. 15, 2019
Int. Cl. A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1442 (2013.01) [A61B 18/1402 (2013.01); A61B 2018/0091 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00922 (2013.01); A61B 2018/00928 (2013.01); A61B 2018/00946 (2013.01); A61B 2018/00958 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/1457 (2013.01); A61B 2018/1462 (2013.01); A61B 2018/1475 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrosurgical device comprising:
forceps having:
a first working arm,
a second working arm,
a handpiece that a user grips during use and the handpiece includes a track that the second working arm moves along so that the second working arm is extendable and retractable, and
a bias device located within the handpiece;
wherein the electrosurgical device has a first electrosurgical configuration where the first working arm and the second working arm are in an opposed first position so that a tip of the first working arm and a tip of the second working arm are aligned, biased away from each other to a spaced apart position, and operable to move laterally relative to each other to grasp tissue, and so that the forceps are configured to deliver a first therapy current that flows between the first working arm and the second working arm;
wherein the electrosurgical device has a second electrosurgical configuration when the second working arm is moved to a second position relative to the first working arm so that the tip of the second working arm is retracted proximally from the tip of the first working arm, and so that the forceps are configured to deliver a second therapy current that flows from the first working arm to a remote electrode;
wherein the bias device comprises a segment of spring steel that extends from a back side of the handpiece to a front side of the handpiece such that as the second working arm is moved to the first position, the bias device produces a force that moves the second working arm distally away from the handpiece and laterally away from the first working arm; and
wherein the bias device is bi-stable so that the bias device biases the second working arm towards the first position or the second position and away from an intermediate position between the first position and the second position.