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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

Disposable motor-driven loading unit for use with a surgical cutting and stapling apparatus

TL;DR: A self-contained motor-powered disposable loading unit for use with a surgical cutting and stapling apparatus is described in this article, where the axial drive assembly thereof is in a starting position and an ending position.
Patent

Interlock and surgical instrument including same

TL;DR: In this paper, a surgical instrument with an end effector comprising a moveable cutting instrument and a motor coupled to the end-effector is described. But the motor actuates the cutting instrument in response to a current through the motor, causing the instrument to move between a proximal-most position and a distalmost position.
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Surgical instrument with enhanced battery performance

TL;DR: An endoscopic or laparoscopic instrument assembly may also include an auxiliary power source within the package and a circuit element, where the circuit element is in electrical communication with the power source as discussed by the authors.
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Post-sterilization programming of surgical instruments

TL;DR: A surgical instrument with a programmable control unit and methods for programming the control unit while the surgical instrument is in a sterile container are discussed in this paper. But the method may also include programming the surgical instruments while they are in the container with a programming device positioned outside of the container.
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Surgical stapling instruments structured for delivery of medical agents

TL;DR: A medical agent dispensing system can be provided that may be structured for use with a surgical severing/stapling instrument that is designed for severing and stapling tissue as discussed by the authors.
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.