Patent ID: 6745081
Filing Date: 2004-06-01
Classification: A61N

Abstract:
An implantable cardiac lead for implant in the coronary sinus of a heart and for use with an implantable cardiac stimulation device for sensing electrical activity of the right and left atria of the heart and delivering stimulation pulses to the right and left atria of the heart, the lead comprising:a proximal connector; a lead body including a plurality of conductors and insulating the plurality of conductors; a distal left atrial pacing electrode for placement in electrical contact with the left atrium; a left atrial defibrillation electrode proximal to the distal left atrial pacing electrode for placement in electrical contact with the left atrium; a first right atrial pacing electrode for placement in electrical contact with the right atrium; and a right atrial defibrillation electrode for placement in one of the right atrium and superior vena cava; the electrodes being spaced apart on the lead body so that when the left atrial pacing electrode is in electrical contact with and adjacent the left atrium within the coronary sinus, the first right atrial pacing electrode is in electrical contact with the right atrium and adjacent to the ostium of the coronary sinus within the coronary sinus.