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Electrode abrading and conducting adhesive and preparation method thereof

A conductive glue and electrode technology, applied in electrodes, electrotherapy, conductive adhesives, etc., can solve the problems of eye irritation, easy decomposition, large impedance between electrodes and skin, etc., to achieve easy to scale production, low production equipment requirements Effect

Active Publication Date: 2015-04-22
WUHAN GREENTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Chinese patent (application) CN 1096459 A adopts alginate and calcium salt instead of traditional acrylic resin to prepare a safe and stable ultrasonic coupling agent, and also claims to be used as Conductive glue is used for electrocardiogram and electroencephalogram measurement, but 0.01-0.5% soluble calcium salt has low conductivity, and the impedance between the electrode and the skin is too large, causing large measurement noise
At the same time, calcium tartrate, calcium citrate, and calcium gluconate are used, and the system does not contain Cl - ions, which will cause the polarization of the commonly used bioelectricity test electrode Ag / AgCl electrode and cause damage to the electrode
The concentrated conductive ultrasonic conductive adhesive of Chinese patent CN (application) 102370996 A uses cross-linked polyacrylic acid resin as a viscosity regulator. Although the acoustic properties, image clarity and clinical application effect are all good, it is relatively irritating to the eyes. And it is easy to decompose when exposed to light, and the gel is easily degraded when exposed to light, resulting in rapid loss of viscosity and liquefaction
At the same time, no conductive components are added to the components, the conductivity is low, and it does not contain Cl - ions are easy to damage the electrodes

Method used

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  • Electrode abrading and conducting adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 750g of pure water and 30g of sodium chloride, stir well to fully dissolve potassium chloride, and form a uniform and transparent potassium chloride solution. Add 100g of 1,2-propanediol and 28g of sodium carboxymethylcellulose in sequence, and stir thoroughly to fully swell the sodium carboxymethylcellulose to form a uniform and transparent gel. Slowly add 80g of 80-100 mesh PE particles to the above gel, and at the same time stir at high speed to disperse, so that the frosted particles are evenly distributed. Finally, add an appropriate amount of preservatives and flavors, stir evenly, and get 1000g of frosted conductive adhesive, and its impedance value is as follows: figure 1 shown.

Embodiment 2

[0034] Weigh 690g of pure water and 100g of potassium chloride, stir well to fully dissolve potassium chloride, and form a uniform and transparent potassium chloride solution. Add 50 g of glycerin, 45 g of 1,2-propanediol, and 40 g of hydroxyethyl cellulose in sequence, and stir thoroughly to fully swell the hydroxyethyl cellulose to form a uniform and transparent gel. Slowly add 60g of 40-60 mesh alumina particles to the above gel, and at the same time stir at high speed to disperse, so that the frosted particles are evenly distributed. Finally, add an appropriate amount of preservative and essence, and stir evenly to obtain 1000 g of frosted conductive adhesive.

Embodiment 3

[0036] Weigh 615g of pure water, 40g of potassium chloride, and 80g of sodium chloride, stir well to fully dissolve potassium chloride and sodium chloride, and form a uniform and transparent conductive solution. Add 90 g of glycerin and 34 g of xanthan gum in sequence, and stir thoroughly to fully swell the xanthan gum to form a uniform and transparent gel. Slowly add 125g of 100-120 mesh walnut shell particles to the above gel, and at the same time stir at high speed to disperse, so that the frosted particles are evenly distributed. Finally, add an appropriate amount of preservative and essence, and stir evenly to obtain 1000 g of frosted conductive adhesive.

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Abstract

The invention discloses an electrode scrub conductive adhesive, which comprises components and contents as follows: 1-20% of natural polymer gel; 1-30% of conductive components; 1-30% of scrub particles; 1-20% of lubricating and moisturizing agent %; pure water 40-90%; other additives 1-10%. The electrode scrub conductive adhesive provided by the invention integrates scrub and conductive effects, can complete exfoliated skin pretreatment and conduct electricity in one step, is convenient to use, and saves measurement preparation time. The formula is skin-friendly, biocompatible, safe and stable, easy to clean, can ensure good contact between the electrode and the skin, and quickly reduce the impedance of the electrode-skin interface. The measurement signal is clear, the noise is low, the artifact is small, and it can be compatible with electrodes of various electrode materials. The frosted conductive adhesive of the invention has a simple preparation method, does not need heating and grinding in the preparation process, has low requirements on equipment, and is easy to scale up production.

Description

technical field [0001] The invention relates to the technical field of electrode conductive glue, in particular to a frosted conductive glue for medical electrodes and a preparation method thereof. Background technique [0002] Bioelectrical signal detection, including electroencephalogram, electrocardiogram, electromyography, etc., is a common medical diagnosis method. Physiological and pathological information can be obtained through bioelectrical signals. The bioelectricity measurement electrodes are placed on the appropriate parts of the human body, and a stable microelectricity detection channel is formed through conductive glue to accurately obtain the weak bioelectricity, amplify it through a bioelectricity amplifier, and then display and record its waveform through a computer and other instruments. It is convenient for observation, analysis and storage. The hardware for bioelectric measurement mainly includes electrodes, conductive glue, bioelectric amplifier, disp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K50/00H01B1/20
Inventor 段晏文李广利
Owner WUHAN GREENTEK