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a medical dressing

A technology of substrate and adhesive layer, applied in the field of medical articles, can solve the problem that the use effect needs to be further improved, and achieve the effect of being beneficial to wound healing and good antibacterial and moisture absorption effect.

Active Publication Date: 2021-12-28
LIAONING YANYANG MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use effect of existing medical dressings needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] A medical dressing includes a substrate, a first nanofiber membrane, a second nanofiber membrane and a protective layer, and the first nanofiber membrane is dispersed and stacked on the surface and pores of the second nanofiber membrane.

[0085] The first nanofiber membrane is cut from a pullulan nanofiber membrane; the manufacturing process of the pullulan nanofiber membrane is electrospinning; the electrospinning of the pullulan nanofiber membrane adopts The spinning voltage is 35kv, and the spinning distance is 20cm;

[0086] The parts by weight of the raw materials for the manufacture of the pullulan nanofiber membrane are: 20 parts of pullulan, 2.5 parts of nano-chitosan particles, 0.5 parts of collagen, 0.2 parts of sodium hyaluronate, and 0.15 parts of licorice.

[0087] The invention adopts the antibacterial nano-chitosan particle loaded with pullulan polysaccharide, and the nano-chitosan particle is directly applied to the wound surface, antibacterial and abso...

Embodiment 2

[0092] A medical dressing includes a substrate, a first nanofiber membrane, a second nanofiber membrane and a protective layer, and the first nanofiber membrane is dispersed and stacked on the surface and pores of the second nanofiber membrane.

[0093] The first nanofiber membrane is cut from a pullulan nanofiber membrane; the manufacturing process of the pullulan nanofiber membrane is electrospinning; the manufacturing raw material of the pullulan nanofiber membrane is Pululan Pullulan, nano-chitosan, collagen, amino acid, sodium hyaluronate, purslane; the spinning voltage used in the electrospinning of the pullulan nanofiber membrane is 30kv, and the spinning distance is 15cm.

[0094] The ratio by weight of the raw material components of the pullulan nanofiber membrane is: 14.5 parts of pullulan, 2.6 parts of nano-chitosan particles, 0.5 part of collagen, 0.15 part of amino acid, 0.15 part of sodium hyaluronate, Purslane 0.10 parts.

[0095] The second nanofiber film is c...

Embodiment 3

[0098] A medical dressing includes a substrate, a first nanofiber membrane, a second nanofiber membrane and a protective layer, and the first nanofiber membrane is dispersed and stacked on the surface and pores of the second nanofiber membrane.

[0099] The first nanofiber membrane is cut from a pullulan nanofiber membrane; the manufacturing process of the pullulan nanofiber membrane is electrospinning; the manufacturing raw material of the pullulan nanofiber membrane is Pululan Pullulan polysaccharide, nano-chitosan, collagen, amino acid, aloe extract; the spinning voltage used in the electrospinning of the pullulan polysaccharide nanofiber membrane is 30kv, and the spinning distance is 18cm;

[0100] The raw materials for the manufacture of the pullulan nanofibrous membrane are as follows: 16.5 parts of pullulan, 3.5 parts of nano-chitosan, 0.6 part of collagen, 0.2 part of amino acid, and 0.12 part of aloe extract.

[0101] The second nanofiber film is cut from polyvinyl al...

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Abstract

A medical dressing belongs to the technical field of medical articles, in particular to a medical dressing. The invention provides a medical dressing with good application effect. The present invention comprises a substrate, a first film, a second film and a protective layer, and is characterized in that the first film and the second film are arranged on the substrate, and the protective layer is covered on the first film and the second film; the first film adds a nanoshell Carboxymethyl chitosan is added to the polysaccharide and / or the second membrane.

Description

technical field [0001] The invention belongs to the technical field of medical articles, in particular to a medical dressing. Background technique [0002] Medical dressings are wound dressings, medical materials used to cover sores, wounds or other damage. The use effect of existing medical dressing needs to be further improved. Contents of the invention [0003] The present invention aims at the problems mentioned above and provides a medical dressing with good application effect. [0004] In order to achieve the above object, the present invention adopts the following technical scheme. The present invention includes a substrate, a first film, a second film and a protective layer, and is characterized in that the first film and the second film are arranged on the substrate, and the protective layer is covered on the first film. and on the second membrane; [0005] Nanochitosan added to the first membrane and / or carboxymethyl chitosan added to the second membrane. [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/28A61L15/32A61L15/40A61L15/24D04H1/728D01D5/00
CPCA61L15/28A61L15/325A61L15/40A61L15/24D04H1/728D01D5/0015C08L5/08C08L5/00C08L29/04
Inventor 冯波袁启江苏丹石九曜赵奇
Owner LIAONING YANYANG MEDICAL INSTR CO LTD
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