Invention Grant
- Patent Title: Tension regulation of remotely actuated instruments, and related devices, systems, and methods
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Application No.: US16334986Application Date: 2017-09-21
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Publication No.: US11234784B2Publication Date: 2022-02-01
- Inventor: Donald Alden
- Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
- Applicant Address: US CA Sunnyvale
- Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
- Current Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Jones Robb, PLLC
- International Application: PCT/US2017/052638 WO 20170921
- International Announcement: WO2018/057690 WO 20180329
- Main IPC: A61B34/00
- IPC: A61B34/00 ; A61B17/00

Abstract:
A surgical instrument includes a shaft with a proximal end and a distal end, a movable component coupled at the distal end of the shaft, a force transmission mechanism coupled at the proximal end of the shaft, and an actuation element with a first end coupled to the force transmission mechanism and a second end coupled to the movable component. The actuation element being configured to transmit an actuation force from the force transmission mechanism to the movable component. A coil spring is coupled to the actuation element between the first and second ends. First and second ends of the coil spring are coupled to longitudinally separated locations on the actuation element. The coil spring is configured to passively expand and contract in response to tension changes in the actuation element. A distance between the longitudinally separated locations changes as the coil spring passively expands and contracts.
Public/Granted literature
- US20190314101A1 TENSION REGULATION OF REMOTELY ACTUATED INSTRUMENTS, AND RELATED DEVICES, SYSTEMS, AND METHODS Public/Granted day:2019-10-17
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