Patent ID: 8868170
Filing Date: 2014-10-21
Classification: A61B,A61N,G06K

Abstract:
1. An active implantable medical device, comprising means for collecting, amplifying, prefiltering and converting from analog-to-digital an endocardial signal, means for digitally processing and analyzing the digitized endocardial signal, and for delivering an indicator of signal peak detection representative of a presence of a QRS complex in the endocardial signal, wherein the digitized endocardiac signal has an amplitude, the means for digital processing and analyzing comprises a double threshold comparator, having as an input said digitized endocardial signal, a peak amplitude threshold and a peak width threshold and having as an output said indicator of peak detection in response to, cumulatively: wherein said peak amplitude threshold is a variable adaptive threshold, and wherein the means for digitally processing and analyzing further comprises: