A cardiac rhythm management device predicts defibrillation thresholds without any need to apply defibrillation shocks or subjecting the patient to fibrillation. Intravascular defibrillation electrodes are implanted in a heart. By applying a small test energy, an electric field near one of the defibrillation...http://www.google.com.au/patents/US7643877?utm_source=gb-gplus-sharePatent US7643877 - Cardiac rhythm management system with defibrillation threshold prediction
