| abstract |
A system for the endocardial stimulation/defibrillation of the left ventricle. This system includes a generator ( 60 ) and an endocardial lead. The lead includes a lead body ( 26 ) whose distal end ( 30 ) extends into the right ventricle ( 14 ) and is provided with a mechanism to anchor ( 32 ) the distal end to the interventricular septum ( 20 ). The lead body carries on it a stimulating and/or defibrillation electrode ( 38 ) ( 64, 66 ). A microcable ( 42 ) extends into the lead body and beyond, with an intermediate portion ( 56 ) crossing from one side of the interventricular septum ( 20 ) to the other, and an active free portion ( 58 ) that emerges in the left ventricle ( 16 ). The microcable is coupled to the generator, to produce an electric field ( 62 ) between, on one hand, the stimulation electrode ( 38 ) or defibrillation electrode ( 64, 66 ) of the lead body and, on the other hand, a bare region of the active free portion ( 58 ) of microcable ( 42 ). |