Surgical instrument incorporating a fluid transfer...

Details Surgical instrument incorporating a fluid transfer... Surgical instrument incorporating a fluid transfer...

A - Human Necessities

61

B

A61B 17/94 (2006.01) A61B 17/068 (2006.01) A61B 17/295 (2006.01) A61B 17/128 (2006.01)

Patent

CA 2536915

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.

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