Electrode for biopotential measurement and biopotential measurement device

A biopotential and measuring electrode technology, applied in diagnostic recording/measurement, sensors, nanotechnology for materials and surface science, etc., can solve the problem of signal quality degradation, large changes in measurement sites, changes over time, and troublesome wearing and other problems, to achieve the effect of improving measurement accuracy and improving user convenience

Pending Publication Date: 2020-12-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in a biopotential measuring instrument for consumer applications, it is difficult to use a wet electrode as described above from the viewpoint of user contamination, change over time, troublesome wearing, etc., and it is conceived to use a dry electrode called a dry electrode. electrode is very important
Although such a dry electrode can be installed relatively easily, the contact impedance with the living body is as high as 10kΩ to 100kΩ (0.1MΩ), and the variation between measurement sites (electrodes) is also large
That is, the noise component increases as described above, and there is concern about a decrease in signal quality

Method used

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  • Electrode for biopotential measurement and biopotential measurement device
  • Electrode for biopotential measurement and biopotential measurement device
  • Electrode for biopotential measurement and biopotential measurement device

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Embodiment Construction

[0032] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Note that, in this specification and the drawings, components that have substantially the same functional configuration are denoted by the same reference numerals, and redundant description will be omitted.

[0033] Note that description will be given in the following order.

[0034] 1. Example

[0035] 1.1. Biopotential measurement electrodes

[0036] 1.2. Method for manufacturing biopotential measurement electrodes

[0037] 1.3. Biopotential measuring instrument

[0038] 2. Examples

[0039] As briefly mentioned earlier, for example, in measuring instruments such as electroencephalograms for measuring minute potential differences, the noise generated due to the coupling and mixing of electromagnetic waves in the external environment with the human body and wiring has a great influence on the measurement accuracy influences. The ef...

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Abstract

The present invention makes it possible to achieve both convenience for the user and measurement accuracy without reducing reliability. The electrode for biopotential measurements according to the present invention includes, in at least a portion that comes into contact with a living body, a base resin layer that is composed mainly of a predetermined resin material, rubber, or elastomer, and conductive particles contained in the base resin layer. The conductive particles each has a predetermined base particle and a surface treatment region which is at least a portion of the surface of the baseparticle that is covered or substituted by a predetermined material.

Description

technical field [0001] The present disclosure relates to a biopotential measuring electrode and a biopotential measuring instrument. Background technique [0002] In order to measure a potential difference represented by an electroencephalogram in a living body, it has been widely practiced to measure a potential difference of interest by attaching electrodes for measuring biopotentials to a living body. Here, in order to accurately measure a minute potential difference such as an electroencephalogram, it is necessary to reduce the noise superimposed on the potential difference signal via the electrodes as much as possible. [0003] In the case where a biopotential measuring instrument such as an electroencephalograph is used for research applications or medical applications, it is practiced to reduce the above-mentioned noise by increasing the input impedance of a differential amplifier provided in the measuring instrument. For example, in the application as described abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0408
CPCA61B5/265A61B5/268B82Y15/00B82Y30/00B82Y35/00B82Y40/00
Inventor 胜原真央佐佐木僚
Owner SONY CORP
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