Patent ID: 8494629
Filing Date: 2013-07-23
Classification: A61N

Abstract:
1. An active implantable medical device of the pacemaker, defibrillator and/or resynchronizer type, comprising: means for detection atrial and ventricular events; means for stimulating a ventricle; means for applying to the means for stimulating an atrio-ventricular delay AVD, the AVD being counted from the moment of detection of a spontaneous or stimulated atrial event until a pacing of the ventricle is applied in the absence of a detected spontaneous ventricular event; a hemodynamic sensor delivering a hemodynamic signal representative of a patient's hemodynamic state; means for analyzing the hemodynamic signal and delivering a hemodynamic parameter whose variation with the AVD is a function represented by a sigmoid characteristic; and means for searching for an optimal AVD by analyzing the sigmoid characteristic, wherein the means for searching for an optimal AVD searches without scanning said sigmoid characteristic, and wherein the means for searching for an optimal AVD comprises: