Patent
Rotary hydraulic pump actuated multi-stroke surgical instrument
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TLDR
In this article, an available amount of mechanical advantage available at a firing trigger may be optimally distributed to various end effector components, perhaps sequenced by an electroactive polymer or piezoelelectrically actuated function switch block.Abstract:
A surgical instrument (e.g., endocutter, grasper, cutter, staplers, clip applier, access device, drug/gene therapy delivery device, and energy device using ultrasound, RF, laser, etc.) may benefit from having a plurality of hydraulically actuated subsystems (e.g., severing, stapling, articulation, locking/unlocking, lockout enabling/disabling, grasping, etc.) supplied with hydraulic power from a trigger actuated rotary pump (e.g., lobe pump, rotary gear pump, internal rotating gear pump, flexible vane rotor pump, rotary vane pump). Thereby, an available amount of mechanical advantage available at a firing trigger may be optimally distributed to various end effector components, perhaps sequenced by an electroactive polymer or piezoelelectrically actuated function switch block.read more
Citations
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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.
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TL;DR: In this article, an E-beam firing bar is used to drive staples on each side of the cut in a surgical severing and stapling instrument, which is suitable for laparoscopic and endoscopic clinical procedures, clamps tissue within an end effector of an elongate channel pivotally opposed by an anvil.
References
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Patent
Surgical stapler instrument
TL;DR: In this paper, a surgical stapler instrument is provided for applying lateral lines of staples to tissue while cutting the tissue between those staple lines, which includes a handle portion, an implement portion, a reciprocating section, a drive member and a movable actuator.
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Tissue-fixing surgical instrument, tissue-fixing device, and method of fixing tissues
Shiro Bito,Isami Hirao,Kazuhiko Oozeki,Minoru Tsuruta,Akito Mukaizawa,Akio Nakada,Tsuyoshi Tsukagoshi,Toshihiko Suzuta,Shuichi Kimura,Seiji Kuramoto,Naoki Uchiyama,Norikiyo Shibata +11 more
TL;DR: In this article, a surgical instrument for fastening together opposing portions of a body organ is described, which consists of a first support for supporting the first opposing portion of the body organ, a second support opposing the first support, and a displacement-preventing member connected to the first or second support for preventing the supports from displacing relative to each other.
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Surgical anastomosis stapling instrument with flexible support shaft and anvil adjusting mechanism
TL;DR: In this article, a stapling head assembly mounted by a flexible support shaft to an actuator handle assembly is presented for performing a circular anastomosis stitching operation, which is capable of bending in any radial direction relative to its centerline into a curved configuration.
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Surgical stapling instrument having a spent cartridge lockout
TL;DR: In this article, a surgical instrument for laparoscopic and endoscopic clinical procedures simultaneously severs and staples tissue clamped in an end effector comprising an elongate channel, which holds a staple cartridge, and a pivotally attached anvil.
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Surgical apparatus and method
TL;DR: In this article, a surgical method and apparatus for resectioning tissue, preferably lumenal tissue, with a remaining portion of an organ being anastomized with staples or other fastening means, preferably endolumenally.