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Silver-silver chloride paste for flexible electrocardiogram detection electrode and application of silver-silver chloride paste

An electrical detection, silver chloride technology, applied in the direction of application, conductive materials dispersed in non-conductive inorganic materials, circuits, etc., to achieve the effect of good adhesion and low AC impedance

Active Publication Date: 2022-04-12
SOUTH SUZHOU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, high electrode-skin contact impedance is also a major factor restricting the development of screen-printed silver-silver chloride flexible medical detection electrodes without the use of conductive paste or low-impedance treatment of the skin surface.

Method used

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  • Silver-silver chloride paste for flexible electrocardiogram detection electrode and application of silver-silver chloride paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a silver-silver chloride paste for a flexible ECG detection electrode, the silver-silver chloride paste includes silver powder, silver chloride powder, a binder and a solvent;

[0039] Taking the mass of the silver-silver chloride slurry for the flexible ECG detection electrode as 100%, the mass proportion of the flaky silver powder is 36%, the mass proportion of the spherical silver powder is 4%, and the mass proportion of the silver chloride is 4%. The ratio is 21.5%, the mass proportion of the binder is 5.54%, and the mass proportion of the solvent is 32.96%;

[0040] Among them, the average particle size of the flaky silver powder is 3-6 μm, the average particle size of the spherical silver powder is 0.1 μm, any three combinations of vinyl acetate resin, polyurethane resin or modified polyurethane resin are used in the binder, and the solvent is divalent esters and 3,5,5-trimethyl-2-cyclohexen-1-one.

[0041] The preparation method of the s...

Embodiment 2

[0049] This embodiment provides a silver-silver chloride paste for a flexible ECG detection electrode, the silver-silver chloride paste includes silver powder, silver chloride powder, a binder and a solvent;

[0050] Taking the mass of the silver-silver chloride slurry for the flexible ECG detection electrode as 100%, the mass proportion of the flaky silver powder is 41.29%, the mass proportion of the spherical silver powder is 4.59%, and the mass proportion of the silver chloride is 4.59%. The ratio is 19.5%, the mass proportion of the binder is 4.5%, and the mass proportion of the solvent is 30.12%.

[0051] The preparation method is consistent with Example 1.

[0052] This embodiment also provides a flexible ECG detection electrode:

[0053] The flexible ECG detection electrode is obtained by screen-printing the flexible ECG detection electrode with silver-silver chloride paste and the surface of the flexible substrate (polyethylene terephthalate), and after obtaining the ...

Embodiment 3

[0055] This embodiment provides a silver-silver chloride paste for a flexible ECG detection electrode, the silver-silver chloride paste includes silver powder, silver chloride powder, a binder and a solvent;

[0056] Taking the mass of the silver-silver chloride slurry for the flexible ECG detection electrode as 100%, the mass proportion of the flaky silver powder is 35.39%, the mass proportion of the spherical silver powder is 3.93%, and the mass proportion of the silver chloride is 3.93%. The ratio is 22%, the mass proportion of the binder is 5.78%, and the mass proportion of the solvent is 32.9%.

[0057] The preparation method is consistent with Example 1.

[0058] This embodiment also provides a flexible ECG detection electrode:

[0059] The flexible ECG detection electrode is obtained by screen-printing the flexible ECG detection electrode with silver-silver chloride paste and the surface of the flexible substrate (polyethylene terephthalate), and after obtaining the si...

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Abstract

The invention provides silver-silver chloride paste for a flexible electrocardiogram detection electrode and application of the silver-silver chloride paste. The silver-silver chloride paste comprises silver powder, silver chloride powder, a binder and a solvent; the mass ratio of the silver powder in the silver-silver chloride paste is 30-50%, the mass ratio of the silver chloride powder in the silver-silver chloride paste is 15-22%, and the mass ratio of the binder in the silver-silver chloride paste is 4-6.5%. By regulating and controlling the mass ratio of the raw materials in the silver-silver chloride paste for the flexible electrocardiogram detection electrode, the obtained flexible electrocardiogram detection electrode has the advantages of low alternating current impedance, good adhesive force, good electrode potential stability, high signal-to-noise ratio and the like, and can be applied to adult electrocardiogram, especially weak fetal electrocardiogram signals.

Description

technical field [0001] The invention belongs to the technical field of electrocardiogram electrodes, and relates to a silver-silver chloride paste for flexible electrocardiogram detection electrodes and an application thereof. Background technique [0002] The bioelectrical measurement and recording of different parts of the human body can reflect the excitability changes of the corresponding parts, which is an important basis for clinical diagnosis. The measurement and recording of ECG changes are the main means of modern medicine to diagnose heart diseases. The acquisition of ECG signals also requires the use of medical detection electrodes, and the silver / silver chloride electrode is a non-polarized electrode, which can effectively convert the ion current on the surface of the organism into an electrical signal, which meets the requirements of the biomedical detection electrode for electrical conductivity. Good stability, strong stability, small potential fluctuation, sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/20H01B1/22H01B5/14H01B13/00A61B5/265A61B5/266A61B5/28A61B5/344
Inventor 张国俊张士宇范哲权高林明
Owner SOUTH SUZHOU MEDICAL TECH CO LTD
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