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Patent

Self-contained gas powered surgical stapler

TLDR
In this paper, a surgical stapler powered by a relatively low pressure gas supply contained in the staplers is described, which 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 pNE to the different forces required to first advance and then form the staple.
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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Citations
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Patent

Surgical Stapling Apparatus

TL;DR: In this article, a surgical stapling device particularly suited for endoscopic procedures is described, which includes a handle assembly and an elongated body extending distally from the handle assembly.
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Self-contained powered surgical apparatus

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Surgical stapling device

TL;DR: In this paper, a surgical stapling device for applying an array of surgical staples to tissue is provided, which includes an approximation mechanism for moving a cartridge assembly and an anvil assembly between spaced and approximated positions and a firing mechanism for ejecting the array of staples from the cartridge assembly.
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Surgical stapling instrument

TL;DR: In this paper, a surgical stapling instrument (1) comprises a body portion (2, 3), a handle (4), and a staple fastening assembly (8), which includes a curved cartridge (10), which comprises at least one curved open row of staples, and a curved anvil (22), which is adapted to cooperate with the cartridge for forming the ends of the staples exiting from the cartridge.
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References
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Patent

Stapler including means for preventing double feeding of staples

TL;DR: In this paper, a medical stapler including a ram adapted to push a staple along a passageway from an inlet opening into which staples are fed, to an outlet opening where the staple is ejected and closed about an anvil portion.
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