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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 instrument having a clearanced opening

TL;DR: In this article, a stapling assembly consisting of a first jaw and a second jaw is presented, wherein the first jaw is rotatable relative to the second jaw. But the assembly is not equipped with an anvil to deform the staples.
Patent

Surgical stapling instruments with cam-driven staple deployment arrangements

TL;DR: In this article, a surgical cutting and fastening instrument with a shaft coupled to a robotic system is described. But the tool mounting portion includes an electric, DC motor connected to a drive train in the shaft for powering the drive train.
Patent

Systems and methods for providing alerts according to the operational state of a surgical instrument

TL;DR: In this paper, a surgical instrument is configured to determine a velocity of a displacement member and, upon the velocity being equal to zero, provide an alert according to the operational state of the instrument and the relative position of the displacement member in its stroke.
Patent

Robotically-controlled motorized surgical instrument

TL;DR: In this article, a surgical cutting and fastening instrument that is motorized and configured for operation in connection with a robotic system is presented, which comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions.
Patent

Positioning tools and methods for implanting medical devices

TL;DR: In this article, a method of positioning a medical implant using an elongate positioning tool is described, where the implant is placed on a distal portion of an elongated positioning tool, inserted into a body cavity, manipulating the positioning tool to position the implant into contact with tissue at an attachment location and attaching the implant to surrounding tissue at the attachment location.
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.