Patent ID: 7343203

Claim:
An apparatus for electrotherapy, comprising a circuit arrangement with a terminal for generation of a sequence of voltage pulses; and two electrodes for application of these voltage pulses to a part of the body that is to be treated; one of the two electrodes having a surface of comparatively high transition resistance and the other electrode having comparatively low transition resistance towards human skin; the electrode with the surface of high transition resistance being movable over the treated part of the body and the surface being a plastic film; with pulse sequences of voltages in a range from 1 to 600 V being generated and a current in a microampere range being produced in human tissue; wherein the pulse sequences have a base frequency of 5 to 250 Hz superimposed by a frequency of 1 to 30 Hz; and wherein said apparatus further comprises a rapid-discharge circuit (E) that includes several thyristors (N 1 to N 4 ) that are triggered by optocouplers.