Patent ID: 6096064
Filing Date: 2000-08-01
Classification: A61N

Abstract:
An apparatus for pacing four chambers of a heart, comprising:a power source housed in an implantable can;first, second and third leads having proximal and distal ends, each of said leads being electrically connected to said power source at its proximal end and adapted to extend from said can into a vein proximal the heart;said first lead connecting at its distal end to an electrode for electrical contact with the inside of the right atrium of the heart;said second lead connecting at its distal end to an electrode that for electrical contact with the inside of the right ventricle of the heart;said third lead connecting at a point proximal to its distal end to a CS electrode for stimulating the left atrium of the heart and said third lead connecting at its distal end to a GCV electrode for electrical contact with the inside of the great cardiac vein to stimulate the left ventricle of the heart, and having a collar, positioned adjacent said proximal point, which is more rigid than said third lead and which surrounds a portion of said third lead and which includes a window that allows said CS electrode to contact the inside of the coronary sinus.