Retraction mechanism with clutch-less drive for use with a...

Details Retraction mechanism with clutch-less drive for use with a... Retraction mechanism with clutch-less drive for use with a...

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61B 17/072 (2006.01)

Patent

CA 2669719

A retraction mechanism allows the full distal retraction of the firing drive from various positions. The retraction mechanism has been developed for use with a hand held surgical apparatus. An embodiment of the retraction mechanism includes a drive member, a first pulley, a second pulley, and a firing drive. The drive mechanism is configured to be driven by a motor. The first pulley is configured to rotate when the motor drives the drive mechanism. The second pulley is movable relative to the first pulley between a proximal position and a distal position. The firing drive is movable relative to the first pulley between proximal and distal positions. In operation, the first pulley rotates in a first direction in response to a distal translation of the firing drive and wherein the firing drive moves proximally upon rotation of the first pulley in a second direction.

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