ROBOTICALLY-DRIVEN SURGICAL INSTRUMENT WITH E-BEAM DRIVER

摘要

A surgical severing and stapling instrument, suitable for laparoscopic and endoscopic clinical procedures, clamps tissue within an end effector of an elongate channel pivotally opposed by an anvil. Various embodiments are configured to be operably attached to a robotic system to receive actuation/control motions therefrom.

主权项

1. A surgical instrument comprising:
an implement portion responsive to firing motions applied thereto from a robotic system, the implement portion comprising: an elongate channel configured for attachment to an elongated shaft operably interfacing with said robotic system and including a channel slot, a staple cartridge received by the elongate channel and incorporating a proximally positioned wedge member aligned to cam upward a driver supporting a staple, an anvil pivotally coupled to the elongate channel and including an anvil channel comprising a vertical slot inwardly open along a longitudinal axis of the anvil and comprising left and right rectangular prism-shaped recesses communicating with, bisected by, and transverse to the vertical slot, wherein said left and right rectangular prism-shaped recesses extend substantially along the longitudinal length of the vertical slot, a firing device including a distally presented cutting edge longitudinally received between the elongate channel and the vertical slot of the anvil channel of the anvil, an upper member comprised of left and right lateral upper pins sized to slidingly engage upper and lower inner surfaces of the left and right rectangular-shaped recesses of the anvil channel, a lower member engaging the channel slot, and a middle member operable to actuate the staple cartridge by distally translating the wedge member of the staple cartridge, the firing device positively engaging both the elongate channel and the anvil during longitudinal firing travel to provide spacing therebetween for staple formation, and wherein engagement of the firing device during firing maintains vertical spacing between the elongate channel and the anvil resisting both pinching due to an inadequate clamped tissue and partial opening due to an excessive amount of clamped tissue.