Intravenous cardiac lead with improved fixation and method.

摘要

An intravenous lead (36; 110) for use with a cardiac device (30) implantable beneath the skin of a patient provides positive fixation for the lead when implanted in an artery or vein of the heart. The lead includes at least one electrode (44; 116) carried by the lead and adapted to be coupled to the implantable cardiac device. The lead includes a coiled section (39; 126) having a resiliently coiled configuration. The coiled section makes substantially continuous surface contact with inner wall surfaces of an artery or vein after the lead is implanted within the artery or vein for providing positive fixation of the lead. <IMAGE>