Self-contained gas powered surgical stapler

Details Self-contained gas powered surgical stapler Self-contained gas powered surgical stapler

1980-05-23

1982-05-25

Bell, Paul A.

Elongated-member-driving apparatus

With means to assemble plural pieces of work

74110, 227 8, 227130, 227DIG1, 128334R, B25C 504, A61B 1704

Patent

active

043312772

ABSTRACT:
A surgical stapler powered by a relatively low pressure gas supply contained in the stapler. The stapler has a mechanical linkage between the pneumatic actuator and the staple driver with a differential mechanical advantage to match the substantially constant force provided by the pneumatic actuator to the different forces required to first advance and then form the staple. This mechanical linkage allows use of a relatively small low pressure actuator and also substantially increases the efficiency with which the gas supply is utilized.

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"Instruction Manual for Auto Suture.RTM. Shin and Fascio Stapling Instrument and Disposable Loading Units", United States Surgical Corporation, Aug. 1971.
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