Full-automatic electroencephalogram cap

Abstract

The invention discloses a full-automatic electroencephalogram cap, which comprises a cap body and a plurality of electrodes, wherein the electrodes are evenly distributed on the cap body, each electrode comprises a shell, a micro-vibration motor and a contact electrode, the micro-vibration motors are arranged in the shells, and the contact electrodes are arranged on the surfaces, making contact with the brain, of the shells. Due to the fact that the micro-vibration motor is arranged in the electroencephalogram cap, the electrodes of the electroencephalogram cap can be rapidly and efficiently connected with the brain through vibration, the situation that the electrodes are manually adjusted one by one is avoided, the detection time is shortened, the user experience is improved, and meanwhile low resistance and high signal-to-noise ratio can be guaranteed.

Description

technical field [0001] The invention relates to brain wave detection technology, in particular to a fully automatic brain wave cap. Background technique [0002] EEG is a biological electrical signal generated by the activity of neurons in the human brain, and has been widely used in clinical medicine. An EEG cap is a device connected to the human head in EEG monitoring. In order to obtain high-quality EEG signals, it is necessary to ensure that the electrode sensors of the EEG equipment are in good contact with the skin of the head. [0003] In order to allow the electrodes in the EEG cap to communicate well with the brain, existing EEG caps usually need to use liquid or fluid to assist the connection. Media commonly used to aid in communication are saline and fluid conductive paste: [0004] (1) The advantage of the EEG cap using physiological saline to connect is that it is easy to operate and does not need to adjust the resistance of each electrode one by one, so it t...

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Problems solved by technology

[0004] (1) The advantage of the EEG cap using physiological saline to connect is that it is easy to operate and does not need to adjust the resistance of each electrode one by one, so it takes a short time to make all electrodes connect smoothly; the disadvantage is that the connection effect is not good, The resistance is large and the signal-to-noise ratio is low (as disclosed in the patent US20180318584A1, the EGI EEG cap of Net Station company has a resistance of 70kΩ after connection)

[0005] (2) The advantage of the EEG cap using fluid conductive paste is that the resistance after connection is low and the signal-to-noise ratio is high (for example, the resistance after the Neuroscan EEG cap is connected is 5-10KΩ); the disadvantage is that it is necessary to adjust each resistance of the electrodes, so the turn-on efficiency is lower

At present, there is no EEG cap that can take into account the advantages of the above two types of EEG caps at the same time (it can not only connect for a short time, but also ensure low resistance and high signal-to-noise ratio).

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