Patent ID: 11872397
Assignee: NEXALIN TECHNOLOGY, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A transcranial electrostimulation system for treating a patient, the transcranial electrostimulation system comprising:
a carrier waveform generator;
a stimulation current generator, a stimulation current being generated from a carrier waveform output from the waveform generator according to software control provided by a central processing unit (CPU), the carrier waveform being an alternating current having a duty cycle ratio and a current amplitude ratio wherein portions of the carrier waveform that define a first polarity have greater magnitude and shorter duration than portions of the carrier waveform that define a second polarity opposite the first polarity, the duty cycle ratio and the current amplitude ratio being selected such that each respective pair of integrations of the current amplitude between successive time instances at which the carrier waveform alternates polarity is substantially equivalent despite a difference in magnitude between the portions of the carrier waveform defining the first and second polarities;
a patient cable connectable to the stimulation current generator and to the patient, the stimulation current being conveyed to the patient via the patient cable;
one or more reference electrodes, the stimulation current being measurable at the patient by the one or more reference electrodes and an electrode contact impedance being determined therefrom; and
a controller in communication with the one or more reference electrodes, the controller dynamically adjusting one or more parameters of the carrier waveform output from the waveform generator in real time with the generation of the stimulation current according to the receipt by the controller of feedback signals based upon the determined electrode contact impedance.