Elongated-member-driving apparatus – Surgical stapler – With magazine
Patent
1993-11-02
1995-07-11
Smith, Scott A.
Elongated-member-driving apparatus
Surgical stapler
With magazine
227179, 227180, 227 19, 227 8, A61B 17068
Patent
active
054313228
ABSTRACT:
A self contained gas powered endoscopic surgical apparatus is provided for placing lateral lines of surgical fasteners into body tissue. The apparatus includes an anvil member and a surgical fastener cartridge member mounted to the distal end of an elongated endoscopic portion. A tubular collar of the endoscopic portion moves distally to engage the anvil member and bias the anvil member and the cartridge member into cooperative alignment, thereby clamping body tissue to be fastened between the anvil member and the cartridge member. A self contained pneumatic system is disposed in the surgical apparatus and is actuable to eject and/or form the surgical fasteners in the clamped body tissue. The apparatus further comprises a locking mechanism for preventing firing of the instrument after it has been fired a predetermined number of times. A counter for displaying the number of times the apparatus has been fired may be provided. A firing interlock is also shown which prevents accidental actuation of the firing trigger. A clamping interlock is shown which prevents approximation of the jaws when the jaws are either misaligned or improperly inserted into the instrument.
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Blewett Jeffrey J.
Bolanos Henry
Bryan Graham W.
Castro Salvatore
Green David T.
Smith Scott A.
United States Surgical Corporation
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