Patent ID: 7400921
Filing Date: 2008-07-15
Classification: A61N

Abstract:
1. An active implantable double-chamber pacemaker, including: means for detecting spontaneous ventricular cardiac activity; means for detecting atrial cardiac activity; means for stimulating a ventricle; means for controlling the stimulation means to deliver a stimulation in the absence of a detected spontaneous ventricular cardiac activity; means for continuously recording current cardiac information representative of the detected cardiac activity; means for inhibiting the ventricular stimulation means for a controlled period, said controlled period being selectable; means for detecting a ventricular pause of duration greater than a predetermined value, said detected ventricular pause occurring during a period of controlled inhibition of the ventricular stimulation means; means for progressively adjusting said predetermined value; means for safeguarding the current cardiac information recorded during an interval preceding said detected ventricular pause; means for determining a bradycardia condition corresponding to said detected ventricular pause; and means for discriminating an origin of said bradycardia caused by a heartbeat rate disorder.