An electrotherapy circuit administers to a patient a current waveform. The electrotherapy circuit includes a charge storage device, at least two discharge electrodes connected by electrical circuitry to opposite poles of the charge storage device, a sensor that senses a patient-dependent electrical...http://www.google.com.au/patents/US5800463?utm_source=gb-gplus-sharePatent US5800463 - Electrotherapy circuit having controlled peak current