Invention Grant
- Patent Title: MRI compatible electrode circuit
- Patent Title (中): MRI兼容电极电路
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Application No.: US14066172Application Date: 2013-10-29
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Publication No.: US08855788B2Publication Date: 2014-10-07
- Inventor: Thomas W. Lloyd , Steven R. Wedan , Gregg S. Stenzel
- Applicant: Imricor Medical Systems, Inc.
- Applicant Address: US MN Burnsville
- Assignee: Imricor Medical Systems, Inc.
- Current Assignee: Imricor Medical Systems, Inc.
- Current Assignee Address: US MN Burnsville
- Agency: Oppenheimer Wolff & Donnelly LLP
- Agent Barbara A. Wrigley
- Main IPC: A61N1/05
- IPC: A61N1/05 ; A61N1/08 ; A61B5/042 ; A61B5/0428 ; A61B5/055 ; A61B18/14 ; A61B17/00 ; A61B18/00

Abstract:
An MRI compatible electrode circuit construct is provided. The construct includes at least two filter components constructed from an electrode wire. One filter component may be a resonant LC filter at or near an electrode/wire interface that resolves the issue of insufficient attenuation by effectively blocking the RF induced current on the wire from exiting the wire through the electrode. The second filter component may include one or more non-resonant filter(s) positioned along the length of the electrode wire that resolve(s) the issue of excessive heating of the resonant LC filter by significantly attenuating the current induced on the wire before it reaches the resonant LC filter. The non-resonant filter(s) may also attenuate the RF current reflected from the resonant LC filter thereby resolving the issue of the strong reflected power from the resonant filter and the associated dielectric heating.
Public/Granted literature
- US20140058492A1 MRI COMPATIBLE ELECTRODE CIRCUIT Public/Granted day:2014-02-27
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