High voltage capacitor route with integrated failure point

Details High voltage capacitor route with integrated failure point High voltage capacitor route with integrated failure point

2007-02-22

2010-12-21

Bertram, Eric D. (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

Reexamination Certificate

active

07856265

ABSTRACT:
An implantable medical device may have a circuit failure mode. The disclosed circuit may have an integrated failure point designed to fail prior to those portions of the circuit. The integrated failure point may include a narrowed portion of a high voltage lead and a grounded lead having a narrow gap separating the grounded lead from the narrowed portion of the high voltage lead. During a high stress fault condition the narrowed portion of the high voltage lead acts as a fuse, forming a vaporized cloud of metal, which shorts current in the high voltage lead across the narrow gap to the grounded lead, thus protecting the remaining portion of the circuit from the high stress condition.

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Bocek, Joseph M., et al., “Method and Apparatus for Charging Partitioned Capacitors”, U.S. Appl. No. 11/462,301, filed Aug. 3, 2006, 53 Pages.

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