Modelling of Dynamic Electrical Bioimpedance and Measurements Safety

This paper is based on mathematical and electrical modelling of living tissues and their electrical bioimpedance. Impedance is complex, dynamic, depends on frequency and changes with time. The equivalent electrical circuit of a tissue in the Fricke-Morse and Debye model as well as the electrical safety checks for medical devices and the standards for medical equipment and how to measure leakage currents are presented in this paper.