Multi-electrode stimulation therapy with reduced energy

Abstract

A device for neurostimulation has a number N of electrodes. N is equal to or larger than 3. The device is configured to deliver via each electrode therapeutic electric phases of amplitudes I1, I2, . . . IN, with a frequency f and after each therapeutic electric phase a number of N−1 charge balancing electric phases. The charge balancing electric phases of the respective electrode each have a polarity that is opposite the polarity of the preceding therapeutic electric phase of the respective electrode. The device is configured to return for each electrode the current of each therapeutic electric phase in the other N−1 electrodes.

Dependencies are inferred from the claim text.