Device for non-invasive electrical stimulation of the spinal cord

A device for non-invasive stimulation of the spinal cord of a patient comprising

• an electrostimulator located in close proximity to the patient, the electrostimulator comprising five stimulation channels and an electrode system,
• wherein each of said five stimulation channels of the electrostimulator is connected to electrodes of the electrode system via wires, the electrodes being attached epicutaneously paraspine in a neck, thoracic, lumbar region or in a coccyx to stimulate the spinal cord and/or paravertebral in a projection of roots of the spinal cord to stimulate the roots of the spinal cord at least on one region of the spinal cord,
• wherein each of said stimulation channels includes a series-connected voltage converter, a current generator and an output signal shaper;
• and
• wherein each of said stimulation channels is configured to be able to generate at least one pulse selected from the group consisting of:
• rectangular single monopolar pulse for muscle activation,
• rectangular rhythmic monopolar pulses,
• rectangular rhythmic modulated monopolar pulses,
• rectangular rhythmic modulated bipolar pulses to trigger a locomotor response or trigger a tonic response in muscles, and
• combinations thereof
• with a stimulation frequency in the range of 1-99 Hz, with a current amplitude from 1 mA to 300 mA and with a modulation frequency from 4 kHz to 10 kHz;
• wherein inputs of each of said stimulation channels are connected to a microcontroller, connected to an indication unit, a control unit and a radio module;
• wherein said microcontroller is configured
• to trigger at least one of each said stimulation channels;
• to select a triggering mode independently for each of said stimulation channels;
• and
• to control each of the stimulation channels with parameters of the generated pulses, the parameters selected from the following:
• type of the pulses;
• the stimulation frequency, which may change in steps of 1 Hz or higher;
• the modulation frequency, which may change in steps of 1 kHz or higher;
• the current amplitude, which may change in steps of 1 mA or higher;
• and
• the pulse duration, which may change in steps of 0.1 ms or higher.