A lead and a lead system for dispersion of a cardioversion/defibrillation electrode formed of one or more small diameter defibrillation electrodes in a heart chamber and for attaching a pace/sense electrode in contact with the heart. The small diameter defibrillation electrode or electrodes extend distally...http://www.google.fr/patents/US5871530?utm_source=gb-gplus-shareBrevet US5871530 - Intracardiac defibrillation leads
