Measuring system for the electrical activity of the heart conducting system on the beat-to-beat basis by a noninvasive method

摘要

The subject of the invention is a measuring system of the heart-conduction system on the beat-to-beat basis by a noninvasive method. It relates to electrophysiological measurements, especially the measurement of very weak voltages of the surface of patient's chest, representing the activation of a specialistic heart-conduction system. The measuring system according to the invention consists of a large number of pairs of measuring electrodes situated preferably along the line of geometrical projections of the heart-conduction system onto the surface of patient's chest and these pairs of electrodes co-operate with a large number of parallely connected amplifying elements, forming together with them parallel amplifying tracks wherefrom summed up voltage is characterized by a signal increase proportionally to the number of the said tracks and by noise increased proportionally to the square root from the number of the said tracks-due to which the signal-to-noise ratio is improved and then the signal is fed to analog and/or digital filtration.