Electrode based on bioelectric signal acquisition

A bioelectrical signal and fabric electrode technology, which is applied in the field of medical devices, can solve the problems of poor moisture absorption, poor air permeability, and reduced polarization voltage, and achieve good shape retention and scalability, reduced polarization potential, and good elasticity.

Inactive Publication Date: 2019-05-17
QINGDAO BRIGHT MEDICAL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an electrode based on bioelectrical signal collection, which solves the problem of poor hygroscopicity and gas permeability of the electrode (medium) made of synthetic fibers, improves the continuous signal collection ability; and reduces the Skin-to-electrode contact impedance of textile electrodes while reducing polarization voltage

Method used

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  • Electrode based on bioelectric signal acquisition

Examples

Experimental program
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Effect test

Embodiment 1

[0021] An electrode based on bioelectrical signal collection, the electrode includes a fabric electrode made of flexible conductive material, the flexible conductive material in the fabric electrode includes wool or rabbit hair, the wool or rabbit hair is mixed with nano conductive material, the The nano conductive material is graphene or carbon nanotube; the content of the wool or rabbit hair mixed with graphene or carbon nanotube is 5%-80%.

Embodiment 2

[0023] see figure 1 , an electrode based on bioelectric signal acquisition, the electrode includes a textile electrode 1 made of flexible conductive material, the flexible conductive material in the textile electrode 1 includes wool or yak hair, and the wool or yak hair is modified Wool or yak hair; the contact surface of the fabric electrode 1 and human skin is covered with an AgCl layer 2 . The thickness of the AgCl layer 2 is 1 / 100-1 / 2 of the thickness of the fabric electrode 1 .

[0024] The invention can be used alone as an electrode in a dry state, has high conductivity, and the AgCl polarization voltage is relatively small; the invention is used as a medium after adding a conductive liquid, and has a better conductive effect and a certain water retention effect.

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Abstract

The invention provides a bioelectric electrode product and a preparation method thereof. The electrode product includes an electrode collecting portion which includes a backing and a sensing sheet. Aconductive biogel layer is disposed in an opening in the middle of the backing, collecting points of the sensing sheet cover the conductive biogel, and the bottom surface of the sensing sheet is provided with a printed conductive layer and integrated with the backing. The electrode product is characterized in that the middle of the bottom surface of the sensing sheet is a raised curved surface ora plurality of protrusions, and a concave curved surface or a plurality of pits are formed on the back of the conductive biogel layer in the middle of the backing. The contact area between the printedconductive layer and the conductive biogel is increased, the conduction distance is reduced, and the conduction resistance is reduced. The electrode is convenient to machine and manufacture and low in manufacture cost.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, relates to bioelectric electrode technology, and is widely used in bioelectric recording and measurement, including medical equipment, mobile equipment, home health care, psychological cognition, games, brain-computer interface, rehabilitation training, etc., and is especially suitable for For the measurement of EEG, ECG and EMG, specifically, it is an electrode based on the collection of bioelectrical signals. Background technique [0002] With the development of science and technology, collecting bioelectrical signals (such as EEG, ECG, EMG, etc.) has become an important means of medical detection and clinical diagnosis. The signal acquisition equipment is directly connected to the human body through electrodes, and the quality of the electrode-skin contact and the contact impedance greatly affect the quality of signal acquisition. The biocompatibility of the electrode (medium) is on...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): A61B5/04A61B5/0408A61B5/0478A61B5/0492A61B5/296
Inventor赵德政
OwnerQINGDAO BRIGHT MEDICAL MFG