| CPC A61B 17/072 (2013.01) [A61B 17/064 (2013.01); A61B 17/0684 (2013.01); A61B 17/29 (2013.01); A61B 18/1442 (2013.01); A61B 17/00234 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/07257 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/2927 (2013.01); A61B 2018/1452 (2013.01); A61B 34/30 (2016.02)] | 12 Claims |
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1. A method of operating a surgical instrument, wherein the surgical instrument comprises a surgical end effector comprising:
a first jaw; and
a second jaw, wherein the second jaw is movable relative to the first jaw about a fixed pivot axis between an open position and a fully closed position, and wherein said method comprises:
manipulating the surgical end effector to position a target tissue between the second jaw and the first jaw;
distally advancing an axially movable closure shuttle to distally advance a closure tube into camming contact with a cam surface on the second jaw to apply an amount of closure force to the second jaw to cause the second jaw to compress the target tissue between the second jaw and the first jaw, wherein a first spring is compressed by the axially movable closure shuttle when the closure tube is distally advanced, and wherein the first spring is to bias the closure shuttle proximally; and
adjusting the amount of closure force applied to the second jaw to overcome a closure resistance force applied to the second jaw by the target tissue during compression of the target tissue to move the second jaw to the fully closed position, wherein adjusting the amount of closure force applied to the second jaw comprises biasing the closure tube distally by way of a second spring to overcome the closure resistance force to move the second jaw to the fully closed position.
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