Invention Grant
- Patent Title: Reduction of endoscope high frequency leakage current using a common-mode choke
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Application No.: US16072115Application Date: 2017-01-31
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Publication No.: US11206966B2Publication Date: 2021-12-28
- Inventor: Alan W. Petersen , Bryan E. Blair , Andrey Polonsky
- 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/US2017/015875 WO 20170131
- International Announcement: WO2017/136357 WO 20170810
- Main IPC: A61B1/00
- IPC: A61B1/00 ; H01F17/06 ; H01F17/04 ; H01F27/28 ; H01F17/00 ; H01F41/07
Abstract:
An endoscope includes a body and a circuit board mounted within the body. A cable couples the circuit board to an imaging system. A common-mode choke is mounted within the body and is configured to electrically isolate the cable from the body at cautery frequencies. A method includes twisting a plurality of wires together to form a twisted set of wires. The twisted set of wires is wound around a core so that windings do not overlap, and so that a first winding and a last winding are separated from each other. Wires in the twisted set of wires are coupled to a plurality of wires in the cable. Also, these wires in the twisted set of wires are also coupled to the circuit board.
Public/Granted literature
- US20190029499A1 REDUCTION OF ENDOSCOPE HIGH FREQUENCY LEAKAGE CURRENT USING A COMMON-MODE CHOKE Public/Granted day:2019-01-31
Information query
