Patent 6873874 was granted and assigned to Cardiac Pacemakers, Inc. on March, 2005 by the United States Patent and Trademark Office.
An apparatus and method for delivering defibrillation shock therapy employing a multi-terminal pulse output circuit. In such a circuit, at least three electrode lead terminals are switchably connected to the positive and negative terminals of an energy storage capacitor. By serially switching selected electrode lead terminals to the capacitor terminals, a variety of shock pulse waveforms may be generated.