Active implantable medical device for cardiac stimulation, resynchronisation, cardioversion and/or defibrillation, comprising means for detecting ventricular noise artefacts

摘要

The device has a cardiac rhythm detecting unit including a cavitory electrode receiving electric potentials of a myocardial depolarization and a detecting circuit delivering signals of auricular and ventricular depolarizations (P, R). A myocardial contraction detecting unit has a delivering unit that delivers signals of endocardiac acceleration peaks. An extrinsic ventricular noise artefacts searching unit has a receiving and correlating unit that receives and correlates the signals, and a delivering unit that delivers a ventricular noise suspicious signal during a correlation defect.