Method of tuning bandstop filters for implantable medical leads
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United States of America Patent
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Oct 30, 2012
Issued Date -
N/A
app pub date -
Feb 29, 2012
filing date -
Jun 8, 2006
priority date (Note) -
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Abstract
A TANK filter is provided for a lead wire of an active medical device (AMD). The TANK filter includes a capacitor in parallel with an inductor. The parallel capacitor and inductor are placed in series with the lead wire of the AMD, wherein values of capacitance and inductance are selected such that the TANK filter is resonant at a selected frequency. The Q of the inductor may be relatively maximized and the Q of the capacitor may be relatively minimized to reduce the overall Q of the TANK filter to attenuate current flow through the lead wire along a range of selected frequencies. In a preferred form, the TANK filter is integrated into a TIP and/or RING electrode for an active implantable medical device.
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