METHOD FOR SEPARATION OF THE BEGINNING OF CARDIOCYCLE AND DEVICE FOR ITS EMBODIMENT Russian patent published in 2002 - IPC

FIELD: medicine, in particular, electrocardiography. SUBSTANCE: discrete readings of the electrocardiosignal are compared with two threshold levels, one of which is positioned at a certain distance above the isometric line, and the other, at the same distance below the isometric line. In the device said operation is realized with the aid of two comparators. One of the inputs of each comparator is connected to the output of the analog switch, whose input receives the electrocardiosignal, and their second inputs are connected to the output of the respective threshold level source. The discrete readings of the electrocardiosignal not exceeding the threshold levels are counted off with the aid of a pulse counter. As soon as the preset number "n" is attained as a result of counting, the position of the n-th discrete reading on the time axis is taken as the beginning of the next cardiocycle. If the value of the next discrete reading drops out of the threshold levels earlier than the number "n" is attained at counting, counting begins again from zero. The number "n" is so selected that it would be attained only in the interval of the electrocardiosignal between waves T and P. EFFECT: facilitated procedure. 3 cl, 2 dwg