Locking mechanism for surgical fastening apparatus

Elongated-member-driving apparatus – With interlock means

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Details

227 1, 227 19, 227178, 227176, 227121, A61B 1700

Patent

active

050318144

ABSTRACT:
An improved surgical stapling apparatus containing a locking mechanism to prevent reactuation of the apparatus, the locking mechanism comprising a resilient clip having a hook which is engagable with a locking notch on the cam bar retainer. The resilient clip is initially held in a non-engagable position by means of a movable chock. When the stapler is actuated for the first time, the cam bar retainer pushes the chock into a subsequent position where the chock no longer blocks the resilient clip. The resilient clip then moves to a position where the hook is engagable with the locking notch. Once the cam bar retainer is retracted it can no longer be reactuated.

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