Patent ID: 9138150
Filing Date: 2015-09-22
Classification: A61B,G16H

Abstract:
1. A method for detection of an Atrial Fibrillation (AF) episode based on estimation of heart rhythm irregularity of a patient, said method comprising the following steps: a) obtaining a threshold pulse interval (PP) series by acquiring and processing a pulse plethysmographic waveform of a patient taken from a blood oxygenation device; b) analyzing said threshold pulse interval (PP) series; and c) measuring a set of patient features from the pulse plethysmographic waveform, wherein the set of patient features from the pulse plethysmographic waveform are a coefficient of variation (CV) of a dPP interval and a Shannon entropy value (EN) of a PP interval, analysis of heart rhythm comprising estimation of a Mahalanobis distance of said patient features from a reference population of patients in atrial fibrillation and of subjects in sinus rhythm.