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Light-cured cross-linked conductive hydrogel as well as preparation method and application thereof

A conductive hydrogel and light-curing technology, applied in applications, sensors, diagnosis, etc., can solve the problems of accurate judgment of diseases that affect the monitoring effect, incomplete reaction of monomers, and unsatisfactory electrical properties, etc., to achieve good contact, The effect of mild conditions and clear waveforms

Active Publication Date: 2020-04-24
GUANGDONG PROV MEDICAL INSTR INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the polymerization system used in clinical conductive adhesives is prone to incomplete reaction of monomers during mass production, resulting in irritating symptoms such as redness, swelling and itching of the skin; most of the electrical properties are not ideal, and there are many electrode interferences and high noises, which affect the monitoring effect. and accurate diagnosis of disease

Method used

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  • Light-cured cross-linked conductive hydrogel as well as preparation method and application thereof
  • Light-cured cross-linked conductive hydrogel as well as preparation method and application thereof
  • Light-cured cross-linked conductive hydrogel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The composition of the light-cured cross-linked conductive hydrogel in this example is shown in Table 1.

[0052] The composition of table 1 embodiment 1 light-cured cross-linked conductive hydrogel

[0053] components parts by mass N-Methylolacrylamide 20 copies Anhydrous Potassium Carbonate 4 parts Potassium hydroxide 0.5 parts N,N'-Methylenebisacrylamide 0.2 parts Glycerol 40 copies potassium chloride 6 servings Lithium magnesium silicate 1 copy 1-[4-(2-Hydroxyethoxy)-phenyl]-2-hydroxy-2-methylacetone 0.5 parts water 50 copies

[0054] The preparation method of the light-cured cross-linked conductive hydrogel in this example is as follows:

[0055] S1: Weigh 20g of N-methylolacrylamide, dissolve it in 20g of water, stir until completely dissolved, and obtain solution A;

[0056] S2: Weigh 0.2g of N,N'-methylenebisacrylamide, dissolve it in 1g of water, stir until completely dissolved, and...

Embodiment 2

[0065] The composition of the photocured crosslinked conductive hydrogel in this example is shown in Table 2.

[0066] The composition of table 2 embodiment 2 light-cured cross-linked conductive hydrogel

[0067] components parts by mass N,N-Dimethacrylamide 15 copies Anhydrous Sodium Carbonate 6 servings N,N'-Methylenebisacrylamide 0.3 parts Glycerol 30 copies Sodium chloride 5 copies Lithium magnesium silicate 1 copy 1-Hydroxycyclohexyl phenyl ketone 0.3 parts 1-[4-(2-Hydroxyethoxy)-phenyl]-2-hydroxy-2-methylacetone 0.2 parts water 60 copies

[0068] The preparation method of the light-cured cross-linked conductive hydrogel in this example is as follows:

[0069] S1: Weigh 15g of N,N-dimethylacrylamide, dissolve it in 30g of water, stir until completely dissolved, and obtain solution A;

[0070] S2: Weigh 0.3g of N,N'-methylenebisacrylamide, dissolve it in 2g of water, stir until completely disso...

Embodiment 3

[0079] The composition of the light-cured crosslinked conductive hydrogel in this example is shown in Table 3.

[0080] Table 3 Example 3 Composition of photocuring crosslinked conductive hydrogel

[0081]

[0082]

[0083] The preparation method of the light-cured cross-linked conductive hydrogel in this example is as follows:

[0084] S1: Weigh 30g of N-methylolacrylamide, dissolve it in 30g of water, stir until completely dissolved, and obtain solution A;

[0085] S2: Weigh 0.15g of N,N'-(1,2-dihydroxyethylene) diacrylamide, dissolve it in 1g of water, stir until completely dissolved, and obtain solution B;

[0086] S3: Weigh 4g of sodium hydroxide and 1g of anhydrous sodium carbonate, dissolve in 10g of water, stir until completely dissolved, let the solution stand at room temperature, and obtain solution C;

[0087] S4: Weigh 0.5g lithium magnesium silicate, dissolve in 5g water, stir until completely dissolved, and obtain solution D;

[0088] S5: Slowly pour sol...

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Abstract

The invention discloses light-cured cross-linked conductive hydrogel as well as a preparation method and application thereof. The light-cured cross-linked conductive hydrogel is prepared from the following components in parts by mass: 12 to 40 parts of a monomer, 3 to 9 parts of a neutralizer, 0.07 to 0.3 part of a cross-linking agent, 20 to 65 parts of a humectant, 4 to 10 parts of a conductive agent, 0.3 to 5 parts of a thickening agent, 0.2 to 1.2 parts of a photoinitiator and 20 to 70 parts of water, wherein the monomer is an acrylamide monomer. The invention also discloses a preparation method of the light-cured cross-linked conductive hydrogel, and an application of the light-cured cross-linked conductive hydrogel in preparation of an electrocardio-electrode patch. The light-cured cross-linked conductive hydrogel has the characteristics of strong conductivity, good biocompatibility and the like. The disposable electrocardio-electrode patch prepared from the gel can keep good contact with the skin for a long time without dryness and is non-irritant to the skin, and the obtained electrocardio-signals are stable in potential, clear in waveform and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of conductive gel, in particular to a light-cured cross-linked conductive hydrogel and its preparation method and application. Background technique [0002] Disposable ECG electrode patches are mainly used with ECG machines, monitors and other equipment. The main purpose is to receive human ECG information, detect heart rate and pulse, etc. The most important component of the disposable ECG electrode patch is medical bioconductive gel. Its nature is a gel material formed by polymerization of one or more polymer monomers according to a certain ratio. The surface of the gel sticks to the human skin instantly, and combined with special medical equipment, it transmits the human ECG signal. [0003] Medical bioconductive adhesives need to have excellent conductivity, so that they will not produce adverse reactions such as irritation and allergies after contact with the human body. At present, the polymerizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/58C08F220/54C08F222/38C08F2/48C08K3/16C08J3/075C08L33/24A61B5/0408
CPCC08J3/075C08F220/58C08F220/54C08F2/48C08K3/16C08K2201/001C08J2333/24A61B5/25C08F222/385
Inventor 于珊耿志杰刘群峰
Owner GUANGDONG PROV MEDICAL INSTR INST
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