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Medical hydrogel non-porous moisture permeable film for wound healing

A technology of wound healing and hydrogel, which is applied in medical science, absorbent pads, bandages, etc., can solve the problems of poor barrier performance and poor binding force, and achieve continuous structure, good biocompatibility, good barrier effect and protection The effect of action

Active Publication Date: 2020-11-17
FOSHAN KING WONDER HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of hydrogel dressing has excellent moisture retention, biocompatibility, liquid absorption and self-adhesiveness. At the same time, the formation of colloid can protect the exposed nerve endings and relieve pain, but the barrier performance is poor, and the binding force with various films Therefore, how to combine it with a film that meets the mechanical and medical requirements, so as to improve its barrier performance, make it highly antibacterial and have good waterproof and breathable properties, is a practical problem that has not yet been solved in the industry

Method used

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  • Medical hydrogel non-porous moisture permeable film for wound healing
  • Medical hydrogel non-porous moisture permeable film for wound healing
  • Medical hydrogel non-porous moisture permeable film for wound healing

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Embodiment Construction

[0025] Preparation of medical hydrogel non-porous moisture-permeable membrane

[0026] 1. Preparation of non-porous vapor-permeable barrier film laminate:

[0027] Preparation of non-porous vapor-permeable barrier films or film laminates using the methods disclosed in Chinese patent applications 201710262655.X and 201710261863.8

[0028] According to the formula shown in the formula table, respectively take 9 μm thermoplastic non-amorphous elastomer resin material, polar thermoplastic resin material, and polar thermoplastic resin as a compatibilizer containing 40% to 60% of the hydrophilic segment The non-porous vapor-permeable barrier type of the material composition and the olefin non-woven fabric product with a gram weight of 23g / m2 are applied to the olefin non-woven fabric product layer by a transfer printing method to form a gram weight 1.5~2.5g / m2, mesh physical gap is 0.3mm, press down to form a three-layer laminate at 0.5MPa, roll temperature is 90°C, production line...

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Abstract

The invention discloses a medical hydrogel non-porous moisture permeable film for wound healing. The medical hydrogel non-porous moisture permeable film comprises hydrogel (GelMA-g-NIPAAm) formed by methacrylic acid esterified gelatin-g-N-isopropyl acrylamide, copper-based MOF particles which are embedded into the hydrogel and form functionalized medical hydrogel with the hydrogel, and a non-porous vapor permeable barrier film or a film laminate prepared from a thermoplastic resin composition, wherein the surface of the non-porous vapor permeable barrier film or the film laminate is modified and connected to the medical hydrogel or the surface of the medical hydrogel. The medical hydrogel non-porous moisture permeable film has the advantages of high antibacterial property, good waterproofand vapor permeable properties, no adhesion and the like, and is suitable for common wounds, large-area burns, diabetic hand-foot ulcers and other difficult-to-heal wounds.

Description

technical field [0001] The present invention relates to a medical dressing; more specifically, the present invention relates to a medical hydrogel non-porous moisture-permeable film for wound healing, especially a high antibacterial, good waterproof and breathable, non-adhesive Copper-based MOF hydrogel functionalized nonporous moisture-permeable membrane. Background technique [0002] Common medical dressings can be divided into traditional medical dressings, synthetic fiber dressings, film dressings, foaming polymer dressings, hydrogel dressings and alginate dressings. Traditional medical dressings are cheap, simple in process, soft in texture and have strong absorption capacity, but poor moisture retention and barrier properties, slow wound healing, and easy to cause secondary damage; fiber dressings have good liquid absorption and self-adhesive properties and are low in price , but poor barrier performance; film dressings have good barrier properties, moisture retention...

Claims

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Application Information

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IPC IPC(8): A61L15/42A61L15/32A61L15/44A61L15/18
CPCA61L15/42A61L15/32A61L15/44A61L15/18A61L2300/102A61L2300/412A61L2300/602
Inventor 林裕卫祁强许颖博
Owner FOSHAN KING WONDER HI TECH CO LTD
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