Invention Grant
- Patent Title: Split bridge circuit force sensor
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Application No.: US16763976Application Date: 2018-11-14
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Publication No.: US11460360B2Publication Date: 2022-10-04
- Inventor: Ashwinram Suresh
- 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
- International Application: PCT/US2018/061113 WO 20181114
- International Announcement: WO2019/099562 WO 20190523
- Main IPC: G01L1/00
- IPC: G01L1/00 ; G01L1/22 ; A61B90/00 ; G01L5/1627

Abstract:
A force sensor comprising a beam having a longitudinal axis and a proximal end portion and a distal end portion; a first Wheatstone bridge disposed on a first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; a second Wheatstone bridge disposed on the first face of the beam, including multiple tension gauge resistors and multiple compression gauge resistors; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a proximal end portion of the beam; wherein at least one tension gauge resistor and at least one compression gauge resistor from each of the first and second Wheatstone bridges is disposed at a distal end portion of the beam.
Public/Granted literature
- US20200278265A1 SPLIT BRIDGE CIRCUIT FORCE SENSOR Public/Granted day:2020-09-03
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