There is provided an implantable cardiac pacing system, having multiple sensing channels for sensing spontaneous cardiac signals which arise between respective different pairs of electrodes. In a preferred embodiment, the system utilizes a single pass VDD-type lead, having at least one atrial ring electrode...http://www.google.es/patents/US5999853?utm_source=gb-gplus-sharePatente US5999853 - Dual chamber pacemaker with single pass lead and with bipolar and unipolar signal processing capability
Dual chamber pacemaker with single pass lead and with bipolar and unipolar ...
