Transvenous defibrillating lead

摘要: A lead having multiple electrodes which is transvenously implanted for use in standby defibrillation of patients a high risk ventricular fibrillation. The employs four electrodes. two distal have spacing optimal measurement impedance changes due to mechanical contractions. This used sensing normal cardiac activity. electrode at the very tip terminates hemispherical shape. Two proximal are closely spaced and located distance from ensures their placement within superior vena cava whenever placed right apex. body uses drawn brazed strand conductors wound triaxially maximum flexibility, minimum cross-sectional area required current carrying capability. At end lead, three connectors electrically couple an implantable pulse generator. separated each separate connector. coupled single stylet employed aid implantation.