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Adhesive bandage

A band-aid and hydrogel technology, applied in the field of medicine, can solve the problems of affecting the hemostatic effect, limited water absorption capacity, waste, etc., and achieve good application prospects, good hemostatic effect, and no toxic side effects

Active Publication Date: 2015-03-25
钟春燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its water absorption capacity is limited. On the one hand, it leads to frequent replacement and use of new band-aids, resulting in waste; in addition, the degree of expansion of the water-absorbing pad after absorbing water is not high, which makes the flat cloth adhesive plaster easy to loosen after being pasted, which affects the hemostatic effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of biological cellulose hydrogel film by static fermentation method: Use coconut water medium to inoculate Gluconacetobacter xylinum with an inoculation amount of 8%. The biocellulose hydrogel membrane is washed repeatedly with lye and deionized water to remove the residual medium components and microbial cells attached to the biocellulose hydrogel membrane. Then, the biocellulose hydrogel film was cut into 2.5cm*2.5cm*0.5cm (length*width*thickness) biocellulose hydrogel sheets by mechanical cutting method, and dried at 50°C to constant weight to make absorbent pads , and then use the method known in the art to produce band-aids, and stick the absorbent pad together with the adhesive plaster and the isolation layer.

Embodiment 2

[0021] Preparation of biological cellulose hydrogel by dynamic fermentation method: Use artificially prepared medium containing carbon source and nitrogen source to inoculate Gluconacetoacetobacter xylinum with an inoculum size of 10%. After 7 days of dynamic fermentation on a shaking table at 30°C, harvest The biocellulose hydrogel beads are washed repeatedly with lye and deionized water to remove the residual medium components and microbial cells attached to the biocellulose hydrogel membrane. Then use the mechanical cutting method to cut the biocellulose hydrogel film into biocellulose hydrogel sheets of 3cm*3cm*0.5mm (length*width*thickness), mechanically compress to reduce the water content to 70%, and then pass Vacuum freeze-drying to reduce the water content to 20% to prepare a water-absorbing pad, and then paste the water-absorbing pad together with adhesive plaster and an isolation layer by a method known in the art for producing band-aids.

Embodiment 3

[0023] Get 3 parts by weight of saffron, 4 parts by weight of Caulis Spatholobus, 5 parts by weight of Coptidis Rhizoma, 3 parts by weight of Polygonatum, 2 parts by weight of Pinellia, 3 parts by weight of Frankincense, 3 parts by weight of Forsythia, 2 parts by weight of Cortex Phellodendri, 1 part by weight of Anemarrhena , after adding water to submerge the medicine, heat and decoct for 1 hour, filter to obtain the decoction of traditional Chinese medicine; then take the biocellulose hydrogel sheet of 3cm*3cm*0.5mm (length*width*thickness) prepared in Example 2 , first reduce the water content to 60% by mechanical compression, then soak it in the decoction of traditional Chinese medicine for 5 hours, take it out and drain it, and then freeze-dry it in a vacuum until the water content is 10% to make a water-absorbing pad, and then use this The method of producing a band-aid known in the field is to stick the absorbent pad together with the adhesive plaster and the isolation ...

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Abstract

The invention provides an adhesive bandage using biological cellulose hydrogel, which is at least partially dehydrated, as an absorbent pad. The above biological cellulose hydrogel, which is at least partially dehydrated, has water content lower than 45%; and preferably a biological cellulose hydrogel dried to a constant weight is used as an absorbent pad. After rehydration, the absorbent pad of the adhesive bandage provided by the invention expands substantially to provide larger and more stable pressure thereby realizing better hemostatic effect. Simultaneously, the biological cellulose hydrogel, which is at least partially dehydrated, has better water-absorbing quality, and can continuously absorb diffusate of a wound for lasting usage and maintain drying of the wound for a long time. The added traditional Chinese medicine components endow the adhesive bandage with effects of sterilization, disinfection and infection prevention; and the adhesive bandage has no toxic or side effect, and has promising application prospects.

Description

technical field [0001] The invention belongs to the technical field of medicine and relates to a band-aid, in particular to a band-aid with biocellulose hydrogel as a water-absorbing pad. Background technique [0002] Band-aid, commonly known as hemostatic ointment, is the most commonly used surgical drug in people's daily life. It has the functions of hemostasis and wound protection. The band-aid is mainly composed of flat cloth adhesive, absorbent pad and isolation layer. The hemostatic effect of the Band-Aid is mainly to rely on the pasting effect of the flat cloth adhesive tape to form a pressure hemostasis, and rely on the water absorption of the absorbent pad to absorb the exudate to keep the wound relatively dry and promote wound healing. [0003] But the absorbent pads used at present are usually made of gauze, cotton and other materials. Its water absorption capacity is limited. On the one hand, it leads to frequent replacement and use of new band-aids, resulting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/28A61L15/42A61L15/44
Inventor 钟春燕其他发明人请求不公开姓名
Owner 钟春燕
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