Patent ID: 6493582
Filing Date: 2002-12-10
Classification: A61N

Abstract:
A multisite cardiac pacemaker for pacing selectively at least one of a left and a right cavity of a heart, comprising:a cardiac signal collection circuit to detect a depolarization potential; at least one stimulation circuit to generate a stimulation pulse and control an application of stimulation pulses; a first connector for receiving a first electrode adapted to be placed in at least one ventricular stimulation site, a second connector for receiving a second electrode adapted to be placed in at least one atrial stimulation site, and a third connector for receiving a third electrode adapted to be placed in a cardiac cavity stimulation site, wherein each of said first, second and third connectors passes a depolarization potential received thereat and a stimulation pulse received thereat; and programmable selection means for selectively connecting the first, second and third connectors to the stimulation circuit and to the cardiac signal collection circuit, wherein the programmable selection means has a first pacing configuration in which at least one of the first, second and third connectors is connected to said stimulation circuit for unipolar stimulation of said corresponding stimulation site, and a second pacing configuration in which at least two of said first, second and third connectors are connected to said stimulation circuit for simultaneous bipolar stimulation of a left cardiac chamber stimulation site and a right cardiac chamber stimulation site.