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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.
Patent

Self-contained powered surgical apparatus

TL;DR: In this article, a self-contained powered surgical stapling apparatus is provided which includes an elongate body, a fastener applying assembly including an anvil for forming a surgical fastener driven thereagainst, a motor assembly and power source for energizing the motor assembly disposed within the elongated body, and a pusher driven by the motor assembler for driving a surgeon fastener toward the anvil to be formed thereby and fastened to body tissue.
Patent

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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Display screen or portion thereof with graphical user interface

TL;DR: Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation as discussed by the authors, which is the basis for the representation presented in this paper.
References
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Patent

Automatic mechanism for the discharge of fluid in a pressurized system

TL;DR: In this paper, a mechanism for automatically releasing a pressurized fluid includes a slidable piston to puncture a seal normally closing the fluid outlet, the piston being controlled by the pressure differential between fluids on opposite sides of a cylinder and normally equalized by communication with the compressed fluid.
Patent

Hog-ring tool

TL;DR: In this article, a tool, utilizing staples or rings of the so-called hog-ring type, especially adapted for securing in place the fabric covering be of seat-cushions or mattresses; the rings being ov clinched through the fabric around the edge or frame of the artilea or mattress.
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Force multiplying mechanism

Keith W Hall
TL;DR: In this paper, a toggle mechanism has been shown to have almost infinite force multiplication as the toggle links approach alignment, but it is still a very low friction mechanism and consequently high efficiency.
Patent

Gas operated stapler

Joseph A Khan