07559450 is referenced by 490 patents and cites 125 patents.

A surgical instrument particularly suited to endoscopic use articulates an end effector by including a fluid transfer articulation mechanism that is proximally controlled. A fluid control, which is attached to a proximal portion, transfers fluid through the elongate shaft through a first fluid passage to a first fluid actuator that responds by articulating an articulation joint. Two opposing fluid actuators may respond to differential fluid transfer to effect articulation. Thereby, design flexibility is achieved by avoiding the design constraints of transferring a mechanical motion through the tight confines of the elongate shaft sufficient to effect articulation.

Title
Surgical instrument incorporating a fluid transfer controlled articulation mechanism
Application Number
11/61908
Publication Number
7559450 (B2)
Application Date
February 18, 2005
Publication Date
July 14, 2009
Inventor
Chad P Boudreaux
Cincinnati
OH, US
Kenneth S Wales
Mason
OH, US
Agent
Frost Brown Todd
Assignee
Ethicon Endo Surgery
OH, US
IPC
A61B 17/10
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