A defibrillator/pacer having separate energy storage circuits for pacing and defibrillating. The pacing energy storage is charged from residual energy from the defibrillator source to permit high energy pacing after defibrillation. In operation, energy is transferred from the defibrillation energy storage...http://www.google.de/patents/US4693253?utm_source=gb-gplus-sharePatent US4693253 - Automatic implantable defibrillator and pacer
