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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

Stapling system for use with wire staples and stamped staples

TL;DR: In this article, a staple cartridge system can be used interchangeably with different staple cartridges, such as wire staples and stamped staples, which can be stamped from a sheet of flat stock.
Patent

Surgical instrument having a multi-layered drive beam

TL;DR: In this article, a surgical instrument including a handle portion, a body part, a movable handle, a tool assembly, a drive beam and a closure apparatus is disclosed. But the tool assembly includes an anvil, a cartridge assembly and a contact surface.
Patent

Stapling system including an articulation system

TL;DR: In this paper, a stapling system comprising an end effector, a staple cartridge, a rigid shaft, an articulation joint, a clamping member, and a firing system comprising a sled movable within the staple cartridge during a staple firing stroke, an electric motor, and an actuator is disclosed.
Patent

Firing member pin angle

TL;DR: In this article, a surgical instrument comprising a first jaw, a second jaw, and a firing member is disclosed, where one or more cams are oriented at a non-parallel angle relative to another cam in order to reduce strain within the cams.
Patent

Surgical instrument with axially movable closure member

TL;DR: In this article, a surgical instrument that includes a first jaw and a second jaw coupled to the first jaw for selective pivotal travel relative to a fully open position and a fully closed position is described.
References
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Patent

Cartridge and powering instrument for stapling skin and fascia

D Green
TL;DR: In this paper, a disposable staple cartridge is used to insert a plurality of staples on a flexible belt and adapted to inject and form the staples, singly, into the disunited skin or fascia of a patient.
Patent

Surgical stapler for skin and fascia

TL;DR: In this article, a gas-powered instrument for applying surgical staples to effect the joining of disunited skin or fascia is presented, which is powered by a gas under pressure originating from a gas filled tank.
Patent

Surgical stapling instrument

TL;DR: A pusher bar and knife assembly including a pair of pusher bars and a central knife carrier moves longitudinally relative to the jaws to eject staples sequentially from the magazine and form laterally spaced staple rows in tissue gripped between the jaws while the knife cuts the tissue along a line between the staple rows.
Patent

Three-stage surgical instrument

TL;DR: In this article, a shifter dog mechanism is used to ensure the completion of a ligating, suturing and dividing cycle to avoid jamming the staple-carrying cartridge.
Patent

Surgical instrument for intraluminal anastomosis

TL;DR: An instrument for use by surgeons particularly in cases involving resection and anastomosis of vascular and digestive tract organs is described in this paper.The instrument is dimensioned for insertion of the principal parts of the instrument into the open ends of or through stab wounds in the lumena after resection by stapling the tissue entirely around the stoma which is formed by an endless knife, illustrated as annular.