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Quasi-dry electrode used for electroencephalogram measurement and preparation method thereof

A quasi-dry electrode and electrode technology, which is applied in the field of quasi-dry electrodes for EEG measurement and its preparation, can solve the problems of complicated use of wet electrodes, inconvenient dry electrode contact impedance, etc., and achieve the effect of convenient use

Active Publication Date: 2014-05-07
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] Aiming at the defects in the prior art, the object of the present invention is to provide a quasi-dry electrode for EEG measurement and its preparation method. The electrode prepared by this method solves the problem of complicated and inconvenient use of wet electrodes and high contact resistance of dry electrodes. The problem

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  • Quasi-dry electrode used for electroencephalogram measurement and preparation method thereof
  • Quasi-dry electrode used for electroencephalogram measurement and preparation method thereof
  • Quasi-dry electrode used for electroencephalogram measurement and preparation method thereof

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] As shown in Figure 1 (1) to Figure 1 (6), this embodiment provides a method for preparing a quasi-dry electrode for EEG measurement. The following embodiment takes a porous titanium electrode as an example, and the specific steps include:

[0032] (1) Prepare the PDMS reservoir, specifically:

[0033] Mix PDMS and curing agent at a mass ratio of 10:1, vacuumize to remove air bubbles to obtain PDMS4; place a piece of glass 1 in a petri dish 2, as shown in Figure 1 (1); put it in a beaker 3 ...

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Abstract

The invention provides a quasi-dry electrode used for the electroencephalogram measurement and a preparation method thereof. The electrode comprises a porous metal electrode, a liquid storage tank and an electrode cable, wherein the porous metal electrode serves as a sensor for acquiring an electroencephalogram signal; the liquid storage tank is adhered to the porous metal electrode by glue and used for storing the conducting liquid, and the conducting liquid can slowly penetrate through the porous metal electrode to keep the moist between the skin and the electrode; the porous metal electrode is connected to the metal cable. Compared with the traditional wet electrode, the quasi-dry electrode provided by the invention is convenient to use and can be used for long-time electroencephalogram measurement, besides, after being used, the electrode is washed and the skin is not needed to be cleaned; compared with the general dry electrode, the low impedance between the electrode and the skin can be kept without irritating the skin, and the electroencephalogram signal can be recorded with high quality.

Description

technical field [0001] The invention relates to electrodes in the field of medical equipment, in particular to a quasi-dry electrode for electroencephalogram measurement and a preparation method thereof. Background technique [0002] Electroencephalogram (EEG) is mainly used to diagnose human intracranial organic lesions, such as epilepsy, encephalitis, cerebrovascular diseases, and intracranial space-occupying lesions. With the development of technology, EEG signals are used more widely, such as brain computer interface (BCI: brain computer interface). [0003] At present, the electrodes used for measuring EEG signals generally adopt silver / silver chloride electrodes and pure metal electrodes. The silver / silver chloride electrode is a kind of wet electrode, and it needs to be used with conductive glue during use. Since the conductive glue is easy to dry out, it will cause the attenuation of the collected signal, which is very unfavorable for long-term monitoring of EEG sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0478
Inventor 刘景全彭慧玲杨斌陈翔杨春生
Owner SHANGHAI JIAO TONG UNIV
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