Patent ID: 6397105
Filing Date: 2002-05-28
Classification: A61N

Abstract:
An active implantable medical device having a DDD operating mode and an AAI operating mode and an automatic DDD/AAI mode switching including:means for sensing spontaneous atrial and ventricular events including an atrio-ventricular conduction; means for detecting an atrio-ventricular block preventing a spontaneous atrio-ventricular conduction; means for providing a programmed atrio-ventricular delay in response to one of an atrial stimulation and a sensed spontaneous atrial event; and means for ventricular and atrial stimulation, said ventricular stimulation being applied in response to a detection of an atrio-ventricular block following said provided programmed atrio-ventricular delay, wherein the improvement comprises: means for discriminating between an atrio-ventricular block having a paroxystic character and a chronic character.