US 12,232,694 B2
Reduction of endoscope high frequency leakage current using a common-mode choke
Alan W. Petersen, Cupertino, CA (US); Bryan E. Blair, Santa Clara, CA (US); and Andrey Polonsky, Rochester, NY (US)
Assigned to Intuitive Surgical Operations, Inc., Sunnyvale, CA (US)
Filed by Intuitive Surgical Operations, Inc., Sunnyvale, CA (US)
Filed on Nov. 19, 2021, as Appl. No. 17/530,595.
Application 17/530,595 is a division of application No. 16/072,115, granted, now 11,206,966, previously published as PCT/US2017/015875, filed on Jan. 31, 2017.
Claims priority of provisional application 62/289,446, filed on Feb. 1, 2016.
Prior Publication US 2022/0071479 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 1/00 (2006.01); H01F 17/04 (2006.01); H01F 17/06 (2006.01); H01F 27/28 (2006.01); H01F 17/00 (2006.01); H01F 41/07 (2016.01)
CPC A61B 1/00126 (2013.01) [A61B 1/00018 (2013.01); A61B 1/00114 (2013.01); A61B 1/00124 (2013.01); H01F 17/04 (2013.01); H01F 17/062 (2013.01); H01F 27/2823 (2013.01); H01F 2017/0093 (2013.01); H01F 41/07 (2016.01)] 8 Claims
OG exemplary drawing
 
1. An endoscope configured to be connected to a cable that includes a plurality of wires and a shield enclosing the plurality of wires, the endoscope comprising:
a body;
a circuit board mounted in the body; and
a common-mode choke mounted in the body and configured to attenuate common-mode current on the cable, the common-mode choke configured to be coupled to the plurality of wires and to the shield to connect the plurality of wires to the circuit board and the shield to a ground of the body.