APPARATUS FOR FREQUENCY ANALYSIS OF ATRIAL FIBRILLATION

摘要

The invention relates to an apparatus for frequency analysis of atrial fibrillation, i.e. a means for determining a measure of the state of the illness in connection with atrial fibrillation. The invention may be used to decide if and how the condition is to be treated. The apparatus comprises a means for registration of electrical signals from the heart of a patient, a means for separating a signal originating from the atrium and a means for frequency analysis of the atrial signal. Preferably, the separating means comprises devices for identification of signals originating from the ventricules, devices for classification of the ventricular signals, devices for formation of the average of the classified ventricular signals and devices for subtracting said averaged, classified ventricular signals from the total registered signal, in order to obtain the atrial signal. Preferably the registration means comprises electrodes to be placed on the patient and for simultaneous registration of conventional ECG.