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MRI COMPATIBLE ELECTRODE CIRCUIT
专利权人:
Inc.;Imricor Medical Systems
发明人:
Thomas W. Lloyd,Steven R. Wedan,Gregg S. Stenzel
申请号:
US14066218
公开号:
US20140058493A1
申请日:
2013.10.29
申请国别(地区):
US
年份:
2014
代理人:
摘要:
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.
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