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Medical bandage with hydrogel antibacterial layer

An antibacterial layer and hydrogel technology, applied in bandages, medical science, absorbent pads, etc., can solve the problems of prone to bacterial infection, poor air permeability of bandages, and unfavorable wound healing, so as to prevent wound infection and inflammation, and enhance mechanical properties And vapor permeability, the effect that the antibacterial effect is remarkable

Inactive Publication Date: 2018-12-07
安徽玉然经编科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the wound is treated, there is direct contact between the bandage and the skin wound, and there is usually overflow fluid near the wound, and the bandage usually has poor air permeability, which is prone to bacterial infection
Brings great pain to the injured and is not conducive to wound healing

Method used

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  • Medical bandage with hydrogel antibacterial layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A medical bandage containing a hydrogel antibacterial layer, comprising a middle layer and an upper surface layer and a lower surface layer respectively located on both sides of the middle layer, characterized in that the lower surface layer is a hydrogel antibacterial layer made of the following raw materials in parts by weight Ingredients: 10 konjac gum, 10 chitosan, 0.2 berberine, 5 ammonium persulfate solution, 5 N, N'-methylenebisacrylamide.

[0022] The mass concentration of the ammonium persulfate solution is 4%.

[0023] Further, the preparation method of the lower surface layer is:

[0024] (1) Dissolve chitosan in 2% acetic acid to make a chitosan solution with a mass concentration of 2%, then add konjac gum, berberine, and aloe vera gel, stir and dissolve at 50°C, 300rpm for 40min, while Add ammonium persulfate solution while stirring, and after stirring for 15 minutes, add N,N'-methylenebisacrylamide, continue stirring for 30 minutes, and then stand still f...

Embodiment 2

[0034] A medical bandage containing a hydrogel antibacterial layer, comprising a middle layer and an upper surface layer and a lower surface layer respectively located on both sides of the middle layer, characterized in that the lower surface layer is a hydrogel antibacterial layer made of the following raw materials in parts by weight Ingredients: Konjac gum 15, chitosan 15, berberine 0.2, ammonium persulfate solution 8, N, N'-methylenebisacrylamide 7.

[0035] The mass concentration of the ammonium persulfate solution is 6%.

[0036] Further, the preparation method of the lower surface layer is:

[0037] (1) Dissolve chitosan in 3% acetic acid to make a chitosan solution with a mass concentration of 2-3%, then add konjac gum, berberine, and aloe vera gel, stir and dissolve at 60°C, 350rpm for 60min , adding ammonium persulfate solution while stirring, after stirring for 20 minutes, adding N, N'-methylenebisacrylamide, continuing to stir for 40 minutes, and then standing for...

Embodiment 3

[0047] A medical bandage containing a hydrogel antibacterial layer, comprising a middle layer and an upper surface layer and a lower surface layer respectively located on both sides of the middle layer, characterized in that the lower surface layer is a hydrogel antibacterial layer made of the following raw materials in parts by weight Ingredients: 20 konjac gum, 20 chitosan, 0.3 berberine, 10 ammonium persulfate solution, 10 N, N'-methylenebisacrylamide.

[0048] The mass concentration of the ammonium persulfate solution is 8%.

[0049] Further, the preparation method of the lower surface layer is:

[0050](1) Dissolve chitosan in 5% acetic acid to make a chitosan solution with a mass concentration of 3%, then add konjac gum, berberine, and aloe vera gel, stir and dissolve at 70°C and 400rpm for 80min, while Add ammonium persulfate solution while stirring, and after stirring for 30 minutes, add N,N'-methylenebisacrylamide, continue stirring for 50 minutes, and then stand sti...

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Abstract

The invention discloses a medical bandage with a hydrogel antibacterial layer. The medical bandage is provided with three layers. The lower surface layer is made of hydrogel, fits the skin and can sterilize and dry a wound. The middle layer contains modified bamboo charcoal fibers, has good permeability, improves the use comfort of a patient, synergizes with the hydrogel layer, and has excellent antibacterial effect. The upper surface layer is a medical pressure sensitive adhesive, is convenient in bonding and avoid troubles caused by knotting. Berberine and aloe vera gel are added into the hydrogel layer so as to improve the antibacterial and anti-inflammatory effects of the hydrogel and effectively prevent the wound from infection and inflammation. Nanometer titanium dioxide and grapheneoxide are used to modify the bamboo charcoal fibers, and so the compatibility between the bamboo charcoal fibers and a base fabric substrate is enhanced, the mechanical properties and vapor permeability of the bandage are enhanced, and the hydrogel antibacterial layer is synergized to against bacteria from inside to outside, which makes the antibacterial effect remarkable.

Description

technical field [0001] The invention belongs to the technical field of medical bandages, in particular to a medical bandage containing a hydrogel antibacterial layer. Background technique [0002] Bandages are gauze bandages that bind wounds or affected areas. They are usually used to fix and protect surgical or injured parts and are widely used. Simple single shed bandage, made of gauze or cotton cloth, suitable for limbs, tail, head and chest and abdomen, now commercially available bandages include 100% cotton plain weave, wrinkle elastic bandage, polyurethane elastic bandage, PBT elastic bandage and Cotton gauze selvedge bandages, viscose plaster bandages, etc. Bandages are a must for surgery as well as for medical care. [0003] At present, the development of bandages mainly revolves around the improvement of base fabrics, including the use of self-adhesive tapes, elastic base fabrics, etc. for base fabrics. However, after the wound is treated, there is direct contact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/18A61L15/28A61L15/40A61L15/46A61F13/00
CPCA61L15/18A61L15/28A61L15/40A61L15/46A61F13/00987A61L2300/404A61L2300/30A61L2300/216A61F13/01029C08L5/08
Inventor 张明
Owner 安徽玉然经编科技有限公司
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