Locking mechanism for a surgical fastening apparatus

Details Locking mechanism for a surgical fastening apparatus Locking mechanism for a surgical fastening apparatus

1999-05-05

2000-12-05

Vo, Peter

Elongated-member-driving apparatus

Surgical stapler

With lockout

227 19, 2271754, A61B 1704, A61B 1710

Patent

active

061554731

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.

REFERENCES:
patent: 4520817 (1985-06-01), Green
patent: 5031814 (1991-07-01), Tompkins et al.

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