Patent ID: 6345198
Filing Date: 2002-02-05
Classification: A61N

Abstract:
An implantable stimulation system suitable for sensing cardiac signals in a patient's atrium and ventricle and stimulating at least the ventricle, the system comprising:a single-pass lead that includes a first electrode located on the lead so as to be positioned in the atrium, a second electrode located on the lead and configured as a shocking coil electrode so as to be positioned in the ventricle in close proximity to the tricuspid valve, and a third electrode located on the lead so as to be positioned in the apex of the ventricle, the lead further having a lead body having a connector adapted to make electrical contact to the implantable stimulation device, and at least three conductors adapted to couple the first, second and third electrodes to the connector; and an implantable stimulation device having a sensing circuit that senses atrial signals and a pulse generator that triggers ventricular stimulation pulses based on the sensed atrial signals; wherein the sensing circuit is capable of sensing atrial signals between the first and second electrodes, and is capable of sensing ventricular signals between the second and third electrodes.