Title:
SURGICAL TOOL HAVING POSITIVELY POSITIONABLE TENDON-ACTUATED MULTI-DISK WRIST JOINT
Document Type and Number:
WIPO Patent Application WO2003001986
Kind Code:
A8
Abstract:
The present invention is directed to a tool having a wrist mechanism that provides pitch and yaw rotation in such a way that the tool has no singularity in roll, pitch, and yaw. A positively positionable multi-disk wrist mechanism includes a plurality of disks or vertebrae stacked in series. Each vertebra is configured to rotate in pitch or in yaw with respect to each neighboring vertebra. Actuation cables are used to manipulate and control movement of the vertebrae. In specific embodiments, some of the cables are distal cables that extend from a proximal vertebra through one or more intermediate vertebrae to a distal vertebra, while the remaining cables are medial cables that extend from the proximal vertebra to one or more of the intermediate vertebrae. The cables are actuated by a pivoted plate cable actuator mechanism. In specific embodiments, the actuator mechanism includes a plurality of small radius holes or grooves for receiving the medial cables and a plurality of large radius holes or grooves for receiving the distal cables. The holes or grooves restrain the medial cables to a small radius of motion and the distal cables to a large radius of motion, so that the medial cables to the medial vertebra move only a fraction of the amount as the distal cables to the distal vertebra, so as to achieve precise control and manipulation of the vertebrae.
Inventors:
COOPER THOMAS G (US)
CHANG STACEY (US)
ANDERSON S CHRISTOPHER (US)
WILLIAMS DUSTIN (US)
MANZO SCOTT (US)
WALLACE DANIEL T (US)
CHANG STACEY (US)
ANDERSON S CHRISTOPHER (US)
WILLIAMS DUSTIN (US)
MANZO SCOTT (US)
WALLACE DANIEL T (US)
Application Number:
PCT/US2002/020884
Publication Date:
December 04, 2003
Filing Date:
July 01, 2002
Export Citation:
Assignee:
INTUITIVE SURGICAL INC (US)
COOPER THOMAS G (US)
CHANG STACEY (US)
ANDERSON S CHRISTOPHER (US)
WILLIAMS DUSTIN (US)
MANZO SCOTT (US)
WALLACE DANIEL T (US)
COOPER THOMAS G (US)
CHANG STACEY (US)
ANDERSON S CHRISTOPHER (US)
WILLIAMS DUSTIN (US)
MANZO SCOTT (US)
WALLACE DANIEL T (US)
International Classes:
A61B1/00; A61B17/28; A61B17/32; A61B19/00; A61B17/00; (IPC1-7): A61B/
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