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Flexible non-invasive optical fiber sensing type brain-computer interface electrode and preparation method thereof

A non-invasive, brain-computer interface technology, applied in computer components, mechanical mode conversion, electrical digital data processing, etc., can solve the problems of low measurement accuracy and accuracy of brain-computer interface electrodes, reduce production costs, process The effect of low complexity and reduced signal-to-noise ratio

Pending Publication Date: 2020-09-25
北京脑陆科技有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a flexible non-invasive optical fiber sensing type brain-computer interface electrode and its preparation method to solve the problem of low measurement accuracy and accuracy of brain-computer interface electrodes

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  • Flexible non-invasive optical fiber sensing type brain-computer interface electrode and preparation method thereof
  • Flexible non-invasive optical fiber sensing type brain-computer interface electrode and preparation method thereof
  • Flexible non-invasive optical fiber sensing type brain-computer interface electrode and preparation method thereof

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.

[0045] Such as figure 1 As shown, this embodiment provides a flexible non-invasive optical fiber sensing brain-computer interface electrode, wherein the electrode is composed of two parts: an optical fiber and a sensing component. The material of the sensing component loaded on the optical fiber is a synthetically prepared polyacrylamide (PAAm) hydrogel material.

[0046] The electrodes in this embodiment realize flexible and non-invasive brai...

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Abstract

The invention discloses a flexible non-invasive optical fiber sensing type brain-computer interface electrode and a preparation method thereof. The electrode comprises an optical fiber, the optical fiber is a quartz cladding-free optical fiber, a sensing component is loaded on the optical fiber, and the material of the sensing component is a polyacrylamide (PAAm) hydrogel material prepared by synthesis. By combining an optical fiber backscattering technology and utilizing the response of polyacrylamide (PAAm) hydrogel to an electric signal, flexible non-invasive brain wave detection is realized; the measurement precision and accuracy of the electrode are improved; the electrode material is stable in chemical property, is friendly to skin and can be recycled; the preparation method is low in process complexity and can realize mass production. Therefore, the flexible non-invasive electrophysiological sensor has wide application value in the field of flexible non-invasive electrophysiological sensors, especially non-invasive brain-computer interface electrodes.

Description

technical field [0001] The invention belongs to the technical field of brain-computer interface, and in particular relates to a flexible non-invasive optical fiber sensing type brain-computer interface electrode and a preparation method thereof. Background technique [0002] As an important direction of human-computer interaction, brain-computer interface (BCI) has a wide range of application values ​​in the fields of medical health, physical efficiency, aerospace, intelligent transportation, entertainment and games. By obtaining human brain electrical signals (EEG) and analyzing them, various information about the human brain can be obtained: from human diseases to controlling external devices. The development of EEG technology has greatly promoted human beings' cognition of their own brains and the enhancement of human physical performance. Therefore, how to measure EEG signals is becoming an increasingly important issue. [0003] EEG flexible electrodes are an important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/01C08J3/075C08F220/56C08F222/38C08L33/26
CPCG06F3/015C08J3/075C08F220/56G06F2203/011C08J2333/26C08F222/385
Inventor 卢树强胡满琛李博王晓岸
Owner 北京脑陆科技有限公司
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