Patent ID: 8584919
Filing Date: 2013-11-19
Classification: A61B

Abstract:
1. A surgical instrument configured for use with an end effector capable of performing a surgical procedure, the surgical instrument comprising: an elongated body operably interfacing with the end effector to transfer actuation motions thereto; a manually actuatable handle for generating said actuation motions; an actuation shaft operably interfacing with said elongated body and said manually actuatable handle to transfer said actuation motions generated by said manually actuatable handle to said elongated body; and a driving pawl interfacing with said manually actuatable handle, said driving pawl having a pawl body with a driving tooth thereon configured to interact with said actuation shaft such that as said manually actuatable handle is actuated, said driving tooth interacts with said actuation shaft to cause said actuation shaft to apply said actuation motions to said elongated body and when the end effector interfacing with said elongated body experiences a firing load that exceeds a predetermined magnitude of firing load, said driving tooth moves relative to said pawl body to disengage from said actuation shaft to prevent further transfer of said actuation motions to said elongated body even though said manually actuatable handle continues to be actuated.