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Programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system

An electrical stimulation, transcranial technology, applied in the field of biomedical engineering, can solve problems such as affecting data analysis and research, cumbersome use process, and difficulty in removing stimulation artifacts from EEG signals.

Pending Publication Date: 2019-10-25
TIANJIN UNIV
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Problems solved by technology

However, there is currently no system that integrates transcranial direct current stimulation and EEG signal recording. The simple and blunt combination of two independent stimulation and recording systems will cause many problems: First, when the two independent systems are used, they need Considering compatibility issues, the use process is cumbersome; second, during the stimulation period, the relative position of the bidirectional electrodes in the stimulating state and the bidirectional electrodes in the collecting state is unknown, resulting in a large number of stimulation artifacts that are difficult to remove in the collected EEG signals, which affects subsequent data analysis Research

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  • Programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system
  • Programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system
  • Programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system

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Embodiment Construction

[0031] The programmable flexible transcranial electrical stimulation and EEG acquisition integrated system of the present invention will be described in conjunction with the accompanying drawings:

[0032] The system schematic diagram and system structure diagram of the present invention are respectively as figure 1 , figure 2 As shown, the system includes three parts: a 64-channel bidirectional electrode array 1 , an acquisition and stimulation unit 2 and a human-computer interaction terminal 3 . Wherein, the 64-channel bidirectional electrode array 1 includes a total of 64 electrodes, and the 64 electrodes are evenly distributed on the scalp, and the reading of EEG signals or the output of stimulating electrical signals can be realized by configuring the electrodes to collect stimulation attributes. The collection and stimulation unit 2 includes a multiplexer 4 , an amplification filter circuit 5 , an ADC module 6 , a stimulation collection state control module 7 , a micro...

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Abstract

The invention relates to a programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system. The programmable flexible transcranial electrical stimulation and electroencephalogram acquisition integrated system comprises a 64-channel bidirectional electrode array, an acquisition and stimulation unit and a man-machine interaction terminal, wherein 64 bidirectional electrodes of the 64-channel bidirectional electrode array are respectively distributed in different areas of scalp and used for acquiring electrophysiological signals from the scalp or applying electrical stimulation to the scalp; the acquisition and stimulation unit is connected with the 64-channel bidirectional electrode array to control the acquisition and stimulation state of each bidirectional electrode; on the one hand, the acquisition and stimulation unit acquires electroencephalogram signals on the scalp through the bidirectional electrodes in the acquisition state; on the other hand, the acquisition and stimulation unit outputs stimulation current to the scalp through the bidirectional electrodes in the stimulation state; and the man-machine interaction terminal is used for acquiring stimulation states and stimulation parameters through the set electrodes and storing and displaying electroencephalogram signal data.

Description

technical field [0001] The invention relates to the field of biomedical engineering, in particular to a programmable flexible transcranial electrical stimulation and EEG acquisition integrated system. Background technique [0002] Transcranial electrical stimulation is a non-invasive brain regulation technology, which acts on the cerebral cortex through a weak current to regulate the excitability of neurons and affect brain activity. Transcranial electrical stimulation can be used for brain mechanism research and clinical treatment of neuropsychiatric diseases. [0003] EEG signals are usually measured by non-invasive electrodes placed on the scalp to measure the discharge of brain neurons, which can characterize brain activity to a certain extent, and have been widely used in clinical disease diagnosis, neuroscience, cognitive science and psychophysiological research. Applications. [0004] For the study of stimulation mechanism and closed-loop stimulation algorithm and c...

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Application Information

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IPC IPC(8): A61N1/04A61N1/20A61N1/36A61B5/0476A61B5/0478A61B5/0484
CPCA61N1/0476A61N1/20A61N1/36025A61N1/36031A61B5/377A61B5/291A61B5/369
Inventor 魏熙乐常思远卢梅丽王江邓斌张镇于海涛伊国胜刘晨蔡立辉朱钰琳
Owner TIANJIN UNIV
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