A band stop filter is provided for a lead wire of an active implantable
medical device (AIMD). The band stop filter includes a capacitor in
parallel with an inductor. The parallel capacitor and inductor are placed
in series with the implantable lead wire of the AIMD, wherein values of
capacitance and inductance are selected such that the band stop 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 band stop filter to attenuate current flow
through the implantable lead wire along a range of selected frequencies.
In a preferred form, the band stop filter is integrated into a TIP and/or
RING electrode for the active implantable medical device.