[Realization of biophysical models for the cardiac electrical activity]

Some principles for the realization of biophysical models of electrical activity of heart ventricles, presented by a double electrical layer along the surface of the electrically active myocardium and the boundary surfaces that divide model compartments with different electrophysiological properties, have been considered. The parameters of the model are the electrophysiological and anatomical characteristics of the heart, such as the geometry of ventricles and the His-Purkinje specialized conductive system, the velocity of depolarization propagation in the myocardium, the ratio of excitation velocities in "Myocardium", "His", and "Purkinje" model elements, the ,shape of transmembrane action potentials on boundary surfaces, the orientation of the own heart anatomical axes relative to the initial coordinate system, and others. The model has been included as a basic unit into a computer modeling system containing databases of simulated and real electrocardiosignals.