Elongated-member-driving apparatus – Surgical stapler – With magazine
Reexamination Certificate
2006-12-05
2006-12-05
Rada, Rinaldi I. (Department: 3721)
Elongated-member-driving apparatus
Surgical stapler
With magazine
C227S175100, C227S176100, C227S178100
Reexamination Certificate
active
07143926
ABSTRACT:
A surgical stapling and severing instrument particularly suited to endoscopic procedures incorporates a handle that produces separate closing and firing motions to actuate an end effector. In particular, the handle produces multiple firing strokes in order to reduce the required amount of force required to fire (i.e., staple and sever) the end effector. A linked transmission reduces the required handle longitudinal length, yet achieves a rigid, strong configuration when straightened for firing. A traction biased firing mechanism avoids binding in driving this straightened linked rack in cooperation with an anti-backup mechanism, with a lockout mechanism that prevents releasing the closure trigger during firing. Furthermore, an external indicator gives feedback to the surgeon as to how far firing has progressed, as well as providing a manual retraction capability.
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Doll Kevin Ross
Hoffman Douglas B.
Setser Michael Earl
Shelton, IV Frederick E.
Swayze Jeffrey S.
Chukwurah Nathaniel
Ethicon Endo-Surgery Inc.
Rada Rinaldi I.
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