US 11,944,369 B2
Forceps with linear trigger kickout mechanism
Jennifer L. Rich, Parker, CO (US); Craig V. Krastins, Arvada, CO (US); Daniel W. Mercier, Erie, CO (US); Kelley D. Goodman, Erie, CO (US); and Grant T. Sims, Boulder, CO (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Mar. 31, 2023, as Appl. No. 18/129,262.
Application 18/129,262 is a division of application No. 16/994,278, filed on Aug. 14, 2020, granted, now 11,628,008.
Claims priority of provisional application 62/990,277, filed on Mar. 16, 2020.
Prior Publication US 2023/0248418 A1, Aug. 10, 2023
Int. Cl. A61B 18/14 (2006.01); A61B 18/12 (2006.01); A61B 17/00 (2006.01); A61B 17/072 (2006.01); A61B 17/285 (2006.01); A61B 18/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 18/1442 (2013.01) [A61B 18/1206 (2013.01); A61B 2017/00367 (2013.01); A61B 17/072 (2013.01); A61B 17/285 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/0063 (2013.01); A61B 2018/00708 (2013.01); A61B 2018/00916 (2013.01); A61B 2018/1455 (2013.01); A61B 2018/1457 (2013.01); A61B 2018/1475 (2013.01); A61B 2090/0801 (2016.02)] 9 Claims
OG exemplary drawing
 
1. An electrosurgical forceps, comprising:
first and second shaft members each having a jaw member disposed at a distal end thereof, the first and second shaft members configured to rotate about a first pivot to move the jaw members between an open position and a closed position, the first and second shaft members defining a longitudinal axis therebetween;
a knife deployment mechanism disposed within the first shaft member and including a trigger moveable along the longitudinal axis to deploy a knife operably coupled thereto between a retracted position relative to the jaw members and an extended position between the jaw members, the knife deployment mechanism including at least a first link, a second link and a third link that cooperate with a knife carrier to actuate the knife from the retracted position to the extended position between the jaw members upon actuation of the trigger; and
a knife kickout mechanism pivotably coupled to the second link and configured to engage a ramp disposed in the second shaft member upon approximation of the first and second shaft members, the knife kickout mechanism configured to cooperate with the first, second and third links to urge the knife back to the retracted position upon opening of the first and second shaft members.