Non-invasive closed-loop transcranial electrostimulation device

Abstract

The invention belongs to the technical field of medical equipment, in particular to a non-invasive closed-loop transcranial electrostimulation device. The device of the invention comprises an electrode cap, a preamplifier, a host computer and an upper computer. The electrode cap is worn on the user's head and comprises a plurality of disc electrodes for collecting EEG signals and applying electrical stimulation. The preamplifier is connected with the electrode cap through a cable and comprises a plurality of selector switches and a plurality of amplifiers, which are used for switching the function of collecting and stimulating each electrode and preamplifying the EEG signal. The host computer is connected with the preamplifier through the cable, which is used for the acquisition, real-timeoperation, transmission of EEG signals and the generation of transcranial electrical stimulation signals. The host computer is wirelessly connected with the host computer, and is used for receiving the multi-channel EEG signals recorded by the host computer and displaying and recording the signals; or the signal real-time analysis algorithm and closed-loop control strategy are downloaded to the host. The invention can be used in the field of scientific experiment and rehabilitation treatment, and can utilize multi-channel EEG signal as feedback to carry out closed-loop electrical stimulation.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a non-invasive closed-loop transcranial electrical stimulation device. Background technique [0002] Due to the existence of the blood-brain barrier in the human body, many drug molecules cannot act on the brain through the blood circulation system, and the available drugs for neurological diseases such as Parkinson's disease, depression, and autism are very limited. Coupled with the reduced curative effect and drug side effects caused by human body drug resistance after long-term medication, most patients cannot be cured by drugs. [0003] In order to improve the therapeutic effect and reduce the side effects of drugs, people use electrical, optical, magnetic and other physical stimuli to regulate the nervous system. In particular, deep brain stimulation has achieved good results in the treatment of Parkinson's disease. However, deep brain stimulation requ...

AI Technical Summary

Problems solved by technology

However, the current transcranial electrical stimulation devices, whether it is a transcranial direct current stimulator or a transcranial alternating current electrical stimulator, are all open-loop systems, which cannot dynamically adjust stimulation parameters according to changes in the patient's physiological state, and cannot achieve precise neural regulation.

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