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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

Staple cartridge assembly comprising staple cavities for providing better staple guidance

TL;DR: In this paper, a staple cartridge is disclosed, which includes a firing member configured to eject the staples from the staple cavities and remove them from the base of the staple cavity.
Patent

Articulatable surgical end effector with asymmetric shaft arrangement

TL;DR: In this paper, a surgical tool assembly is configured to prevent the distal end portion from buckling when an axial actuation motion is applied to the proximal end of the tool.
Patent

Surgical staple strips for permitting varying staple properties and enabling easy cartridge loading

TL;DR: In this paper, a strip of staples, a base strip, and a plurality of connector portions joining the staples to the base strip are removed from a surgical staple cartridge, and the strips of staples are removed.
Patent

Surgical stapling instruments and staple-forming anvils

TL;DR: In this paper, an anvil can have a staple-forming surface having a plurality of pockets defined therein, and the pockets can be nested, and a central axis can transect the pocket between the proximal cup and the distal cup.
Patent

Shaft assembly comprising separately actuatable and retractable systems

TL;DR: In this article, a shaft assembly consisting of an end effector (2300) configurable in an open configuration and a closed configuration, a closure system configured to transition toward the closed configuration during a closure stroke, a firing member movable through a firing stroke, and a frame.
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.