Patent ID: 6208895
Filing Date: 2001-03-27
Classification: A61N

Abstract:
A circuit that generates a defibrillation pulse in a defibrillation mode and a pacing pulse in a pacing mode, the circuit comprising:an energy storage capacitor having a first electrode and a second electrode;a charging circuit coupled to the energy storage capacitor, wherein the charging circuit is configured to charge the energy storage capacitor;an energy transfer circuit coupled to the energy storage capacitor, the energy transfer circuit having a first output lead and a second output lead, wherein the energy transfer circuit is configured to selectively electrically couple the first and second electrodes of the energy storage capacitor to the first and second output leads; anda control circuit coupled to the charging circuit and the energy transfer circuit, wherein the control circuit is configured to cause the charging circuit to charge the energy storage capacitor to a predetermined level and, when the energy storage capacitor is charged, to control the energy transfer circuit to couple the first and second electrodes of the energy storage capacitor to the first and second output leads of the energy transfer circuit so that the energy transfer circuit provides:during the defibrillation mode, an external defibrillation pulse at the first and second output leads using energy stored in the energy storage capacitor, andduring the pacing mode, an external pacing pulse at the first and second output leads using energy stored in the energy storage capacitor.