Implantable cardiac coronary sinus lead having a defibrillation electrode of split configuration and method of manufacture

摘要

A chronic implantable cardiac lead for use in the coronary sinus region of the heart is described. The lead includes an elongated lead body having a distal end and a proximal end, a plurality of terminals at the proximal end of the lead body, and an electrode assembly including a plurality of electrodes at the distal end of the lead body. The electrode assembly includes at least one pacing electrode proximally spaced from the distal end and at least one defibrillation electrode including a first portion proximal to the pacing electrode and a second portion distal to the pacing electrode. A plurality of conductors connect each electrode to a respective given one of the terminals.