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Bioelectric signal sensor

A technology of bioelectrical signals and sensors, applied in sensors, medical science, diagnostic recording/measurement, etc., can solve problems such as discomfort, receptor pain, high electrode-skin impedance, etc., to achieve comfortable wearing, small skin impedance, and low impedance stable effect

Active Publication Date: 2016-01-13
SUZHOU GREENTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the high electrode-skin impedance of the prior art, the pain and discomfort of the recipient caused by long-term use, and provide a bioelectric signal sensor

Method used

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Examples

Experimental program
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Embodiment 1

[0040] Example 1: is a basic embodiment of the present invention. As shown in the drawings, a bioelectric signal sensor includes an electrode body 1, an electrolyte permeable column 2, an electrode 3, and an electrical connector 4; the electrode body 1 has a cavity 1.1, a body 1.2 and an upper body at one end of the cavity Cover 1.3; the electrolyte permeation column 2 is embedded and fixed in the cavity 1.1 of the electrode body, and is in electrical contact with the electrode 3 in the cavity; the end surface of the electrolyte permeation column 2 exposed outside the cavity 1.1 of the electrode body is used for Contact with the skin of the organism; the electrode 3 is connected to the external circuit wire 9 through the electrical connector 4 on the electrode body 1; the electrode 3 is a conductive layer on the inner wall of the cavity 1.1 of the electrode body and / or on the inner wall top surface , or conductive wire, or conductive sheet.

[0041] Compared with the prior ...

Embodiment 2

[0042] Example 2: is a further example. as attached Figure 1-9 As shown, on the basis of Embodiment 1, the bioelectric signal sensor has an integral structure of the body 1.2 of the electrode body 1 and the upper cover 1.3, and the structure is that the body 1.2 and the upper cover 1.3 are formed at one time A whole, or a bonded whole. The overall structure is convenient to use, the process is simple, the material is less, and the cost is low. The conductive layer is a silver layer or a silver / silver chloride layer coated or plated on the inner wall of the cavity of the electrode body and / or on the top surface of the inner wall. The silver or silver / silver chloride coating is directly connected to the electrical connection of the end face of the electrode body, and the silver or silver / silver chloride coating can also be coated only on the inside of the cover on the electrode body The surface can also be uniformly coated on the inner surface of the main cavity of the ele...

Embodiment 3

[0043] Example 3: is a further example. as attached image 3 , 4 , 5, on the basis of embodiment 1, the bioelectric signal sensor, the electrolyte permeable column 2 embedded in the cavity 1.1 is fixed on the inner wall of the cavity 1.1 of the electrode body as follows figure 1 , 3 , Shrapnel 8.1 shown in 9; There are also embodiments: as Figure 4 , 5 Shown is the shrapnel 8.1 extending from the lower end of the cavity to the inside of the cavity; Figure 6 The integral post 8.2 on the inner wall of the lower end shown; Figure 10 The integral seam 8.3 on the inner wall of the lower end is shown. The shrapnel 8.1 and the post 8.2 are evenly distributed on the inner wall of the cavity 1.1. The shrapnel 8.1, or the clamping 8.2, or the notch 8.3 are used to clamp and fix the electrolyte permeation column 2 to prevent the electrolyte permeation column from falling during use.

[0044] Such as figure 1 , 3 , 9, the electrolyte permeation column 2 is cylindrical.

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Abstract

The invention relates to a bioelectric signal sensor. The bioelectric signal sensor comprises an electrode body, an electrolyte osmosis column, an electrode and an electric connector. The electrode body is provided with a cavity body and an upper seal cover at one end of a cavity; the electrolyte osmosis column is fixedly embedded into the cavity of the electrode body and electrically contacts with the electrode in the cavity; the end face, exposed outside the cavity of the electrode body, of the electrolyte osmosis column is used for contacting with organism skin; the electrode is in wire connection with an external circuit through the electric connector on the electrode body; the electrode is a conducting strip, a conducting wire or a conducting layer on the inner wall and / or the top surface of the inner wall of the cavity of the electrode body. The bioelectric signal sensor has the advantages that the sensor is reasonable in structure; no electrolyte storage cavity is needed, the electrolyte osmosis column releases absorbed electrolyte solution to the skin surface under slight pressure of a support; the coating electrode and the electrolyte osmosis column are stable in contact and large in contact area, so that low impedance, stability, high measurement precision and comfort in long-time wearing are realized.

Description

technical field [0001] The invention relates to a bioelectrical signal sensor, which is widely used in bioelectrical recording, measurement and stimulation, including medical equipment, mobile equipment, home health care, psychological cognition, games, brain-computer interface, rehabilitation training and neuromarketing, etc., especially It is used for glue-free bioelectricity measurement and wearable devices. Background technique [0002] With the development of science and technology, the measurement of bioelectricity (such as EEG, ECG, EMG, etc.) has been widely used in the monitoring and diagnosis of various nervous system diseases and rehabilitation equipment for bioelectrical feedback. EEG measurement is also an important experimental method in cognitive psychology research. In order to obtain accurate weak EEG signals, good contact between the electrodes and the scalp is required, and the electrode impedance is low and stable. Electrode impedance for EEG measuremen...

Claims

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Application Information

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IPC IPC(8): A61B5/0408A61B5/0478A61B5/0492A61B5/296
Inventor 段晏文李广利杨德涛
Owner SUZHOU GREENTEK
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