Surgical instrument with an articulating shaft locking...

Details Surgical instrument with an articulating shaft locking... Surgical instrument with an articulating shaft locking...

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61B 17/068 (2006.01) A61B 17/94 (2006.01)

Patent

CA 2553499

A surgical instrument particularly suited to endoscopic use articulates an end effector by including a laterally sliding member in a proximal portion of a shaft that pivots the end effector to a selected side. Differentially opposing actuating forces (e.g., hydraulic, fluidic, mechanical) act against the laterally sliding member without binding by incorporating guidance mechanisms between the laterally sliding member and a frame of the shaft. A locking member advantageously unlocks automatically as articulation is commanded by resists backdriving of the mechanism.

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