US 11,051,841 B2
Mechanical lockout for ultrasonic surgical instrument
John E. Brady, Liberty Township, OH (US); Alexander R. Cuti, Cincinnati, OH (US); Kevin M. Fiebig, Cincinnati, OH (US); Ellen Burkart, Cincinnati, OH (US); Demetrius N. Harris, Cincinnati, OH (US); Andrew Kolpitcke, Centerville, OH (US); Amy M. Krumm, Cincinnati, OH (US); Matthew T. Kuhn, Houston, TX (US); Jason R. Lesko, Cincinnati, OH (US); Stephen M. Leuck, Milford, OH (US); Guion Y. Lucas, Cincinnati, OH (US); Andrew S. Meyers, Cincinnati, OH (US); Candice Otrembiak, Loveland, OH (US); and Grace E. Waters, Cincinnati, OH (US)
Assigned to Ethicon LLC, Guaynabo, PR (US)
Filed by ETHICON LLC, Guaynabo, PR (US)
Filed on Apr. 12, 2018, as Appl. No. 15/951,788.
Prior Publication US 2019/0314056 A1, Oct. 17, 2019
Int. Cl. A61B 17/32 (2006.01); A61B 17/00 (2006.01); A61B 18/14 (2006.01); A61B 17/29 (2006.01); A61B 90/00 (2016.01); A61B 18/00 (2006.01)
CPC A61B 17/320092 (2013.01) [A61B 17/320068 (2013.01); A61B 18/1445 (2013.01); A61B 2017/00402 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/320074 (2017.08); A61B 2017/320095 (2017.08); A61B 2018/00994 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ultrasonic surgical instrument, comprising:
(a) a handle assembly including at least one user input feature configured to selectively mechanically actuate from a first position to a second position to thereby activate the instrument in the second position;
(b) an ultrasonic transducer supported by the handle assembly, wherein the ultrasonic transducer is operatively connected to the at least one user input feature;
(c) a shaft assembly configured to removably couple with the handle assembly, wherein the shaft assembly includes a distal end portion, wherein the shaft assembly further includes:
(i) an end effector extending distally from the distal end portion, and
(ii) an ultrasonic waveguide configured to be acoustically coupled with the ultrasonic transducer; and
(d) a mechanical lockout assembly configured to move between at least an unlocked configuration and a locked configuration,
wherein in the locked configuration the mechanical lockout assembly prevents selective mechanical actuation of the at least one user input feature from the first position to the second position such that the handle assembly and the shaft assembly are only partially coupled together physically preventing the user from activating the instrument using the at least one user input feature, and
wherein in the unlocked configuration the mechanical lockout assembly allows selective mechanical actuation of the at least one user input feature from the first position to the second position such that the handle assembly and the shaft assembly are completely coupled together enabling the user to activate the instrument using the at least one user input feature.