Band stop filter employing a capacitor and an inductor tank...

Details Band stop filter employing a capacitor and an inductor tank... Band stop filter employing a capacitor and an inductor tank...

2008-04-22

2008-04-22

Layno, Carl H. (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

C607S002000, C607S037000, C600S411000

Reexamination Certificate

active

11743000

ABSTRACT:
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.

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