Apparatus for Endoscopic Procedures

摘要

A shaft assembly is provided for interconnecting at least one rotatable drive shaft of a hand-held electromechanical surgical device, and an end effector actuatable by an axial drive force. The shaft assembly includes a flexible drive cable rotatably supported in an outer tube, the flexible drive cable includes a proximal end operatively connected to a respective rotatable drive shaft of the hand-held surgical device. The flexible drive cable being off set a radial distance from a central longitudinal axis of the outer tube. The shaft assembly includes an articulation rod at least partially slidably supported in the outer tube, and an articulation link having a proximal end pivotally connected to the distal end of the articulation rod and a distal end pivotally connected to a distal neck housing. The articulation rod being off set a radial distance from the central longitudinal axis of the outer tube.

主权项

1. A shaft assembly for interconnecting at least one rotatable drive shaft of a hand-held electromechanical surgical device, and an end effector actuatable by an axial drive force, the shaft assembly comprising:
a shaft coupling assembly configured and adapted for selective connection to a connecting portion of the surgical device and to be in operative communication with each of the at least one rotatable drive shaft of the surgical device; an outer tube having a proximal end supported by the shaft coupling assembly, the outer tube defining a central longitudinal axis; a proximal neck housing supported at a distal end of the outer tube; a distal neck housing pivotally connected to a proximal neck housing, wherein a distal end of the distal neck housing is configured and adapted for operative connection with the end effector; a flexible drive cable rotatably supported in the outer tube; an articulation rod at least partially slidably supported in the distal neck housing; and an articulation link having a proximal end pivotally connected to the distal end of the articulation rod, and a distal end pivotally connected to the distal neck housing; wherein actuation of the rotatable drive shaft of the hand-held surgical device that is connected to the articulation rod causes the articulation rod to axially translate; and wherein axial translation of the articulation rod causes the distal neck housing to pivot off axis relative to the proximal neck housing.