Inductor capacitor EMI filter for human implant applications
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United States of America Patent
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Feb 14, 2006
Grant Date -
Dec 23, 2004
app pub date -
Apr 15, 2004
filing date -
May 23, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A feedthrough terminal assembly for an active implantable medical device includes a conductive ferrule conductively coupled to a housing of the medical device, a feedthrough capacitor conductively coupled to the ferrule, an inductor closely associated with the capacitor in non-conductive relation, and a conductive terminal pin extending through the capacitor and the inductor. The terminal pin extends through the inductor in non-conductive relation and is conductively coupled to active electrode plates of the capacitor. In one preferred form, the terminal pin is wound about the inductor. Additionally, the inductor may be maintained in close association with the capacitor without forming a direct physical attachment therebetween.
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