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hydrogel dressing

A technology of hydrogel and hydrogel layer, applied in the field of medical materials, can solve the problems of unsatisfactory application, and achieve the effect of promoting wound healing and anti-inflammatory wound healing

Inactive Publication Date: 2011-12-21
SUZHOU MEDSPORT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has many advantages, its application is not very satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Solubbing 8g polyvinyl alcohol in 122g of distilled water. After being fully dissolved, add 2g of polyacrynal hydrochloride, 60g50%concentration of polyacrylate solution, 8g of methacrynal hydroxyl ethyl, and stir completely dissolved.Bubble, then pour the mixed solution on the non -woven fabric, use a high -energy electronic accelerator to radiate, and the radiation dose is 45kgy.The thickness of the hydrogel layer is 1mm.

Embodiment 2

[0017] Solk 4g polyvinyl alcohol in 148g of distilled water. After being fully dissolved, add 2g of 2g of chitosaccharin hydrochloride, sodium polyacrylate, 4g of methyl acrylic hydroxyl ethyl, stirred completely dissolved, drew vacuum -free, and then remove the vacuum.The mixed solution is poured on the non -woven fabric, and the radiation dose is 75kgy.The thickness of the hydrogel layer is 3mm.

Embodiment 3

[0019] Solk 12g polyvinyl alcohol in 158g of distilled water. After being fully dissolved, add 4g of chitosaccharin hydrochloride, sodium 20g polyacrynal, 4g of methyl acrylic hydroxyl ethyl, and 2g of permanent gum.Then pour the mixed solution on the non -woven fabric, use high -energy electronic accelerator to radiate, and the radiation dose is 60kgy.The thickness of the hydrogel layer is 2mm.

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Abstract

The invention relates to a hydrogel dressing, comprising a non-woven fabric layer and a hydrogel layer arranged thereon. The hydrogel is poured on the non-woven fabric and cross-linked by an electron accelerator with an irradiation dose of 15-90 kGy; The hydrogel of the adhesive layer contains water-soluble polymers and monomers and water-soluble chitosan derivatives, the mass percentage of water-soluble polymers and monomers is 15-30%, and the mass percentage of water-soluble chitosan derivatives The percentage content is 0.5-3%; the water-soluble polymer and monomer are one or more of polyvinyl alcohol, hydroxyethyl methacrylate, sodium polyacrylate and gelatin, and the water-soluble chitosan derivative is the shell Polysaccharide hydrochloride. The hydrogel dressing has excellent water absorption performance and good air permeability, and has the functions of antibacterial, anti-inflammatory and promoting wound healing, and is suitable for wound protection and treatment of burns, scalds and traumatic wounds.

Description

Technical field [0001] The present invention involves a hydrogel dressing prepared by radiation cross -linking, which is the field of medical materials technology. Background technique [0002] Medical dressing is a type of medical materials that are used for temporary coverage for various trauma and wound surfaces. It can prevent the wounds from being affected by bacterial infections and other external factors, and play a role in protecting wounds and wounds.As a traditional dressing, as a traditional dressing, it has played an important role in the medical and health field.Although it has many advantages, its application is not very satisfactory.The liquid absorption is not large enough, and it needs to be bandaged thickly and often replaced; the dressing is easily dry after the fluid, and the trauma is caused by adhesion with the wound, so it will gradually be replaced by other dressings. [0003] Hydraulic gel is a mesh -moleculed bloating body that can dissolve in water, abs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/42A61L15/28A61L15/24A61L15/32
Inventor 李进进徐天骥钟明南
Owner SUZHOU MEDSPORT PROD
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