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Water soluble polyose composite medical dressing and preparation method thereof

A water-soluble, polysaccharide technology, used in medical science, bandages, absorbent pads, etc., can solve problems such as antibacterial properties or poor water solubility, and achieve the effects of good hemostasis, fast absorption and high bacteriostatic rate.

Active Publication Date: 2012-11-14
北京泰科斯曼科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a compound of water-soluble animal polysaccharides and plant polysaccharides, which is easy to absorb and has relatively high Novel medical dressing with strong antibacterial property without adding medicine and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0016] The first specific embodiment of the present invention, get 5 grams of viscose fibers containing 15% chitin, add 40% (W / W) NaOH 40ml, react at room temperature for 2 hours; add 70% (W / W) chloroacetic acid 15ml; 75 React at ℃ for 6 hours, neutralize to 7 with acetic acid; wash with 85% ethanol, and dry.

no. 2 Embodiment

[0017] In the second specific embodiment of the present invention, 8% water-soluble sodium carboxymethylcellulose colloid is coated or printed on a surface of 5×10cm by a certain pattern. 2 On carboxymethyl cellulose nano gauze, then cover 5×10cm 2 Carboxymethyl chitin non-woven fabric, pressurized at 110°C for 5 minutes; or 10% water-soluble chitin colloid, coated (or printed according to a certain pattern) on a surface of 5×10cm 2 On carboxymethyl cellulose nano gauze, then cover 5×10cm 2 Carboxymethyl chitin (chitosan) non-woven fabric, pressurized at 120°C for 3-5min, then it is ready.

[0018] In the third specific embodiment of the present invention, the water-soluble chitin (chitosan) powder with more than 200 orders is configured into a 20% suspension in 75% ethanol, and the suspension is padded with sodium alginate fiber non-woven fabric, Squeeze rate 80%, dry.

no. 4 Embodiment

[0019] In the fourth specific embodiment of the present invention, a 5% aqueous solution of sodium carboxymethyl cellulose and a 5% aqueous solution of sodium carboxymethyl chitin are mixed in a ratio of 1:1, freeze-dried, and can be made into a sponge.

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Abstract

The invention relates to a water-soluble polysaccharide compound medical dressing and a preparation method thereof; the medical dressing compounds a plant polysaccharide which has water-soluble property after the activation with an animal polysaccharide which has water-soluble property after the activation, or compounds a plant polysaccharide material or an animal polysaccharide material to form a water-soluble, natural antimicrobial compound medical dressing through the activation. The water-soluble plant polysaccharide comprises cellulose and sodium alginate after being activated and implanted; the water-soluble animal polysaccharide comprises chitin and chitosan after being activated and implanted. After being activated and implanted, the water-soluble animal polysaccharide and the water-soluble plant polysaccharide have better antibacterial effect when in a compatible use and are easy to absorb.

Description

technical field [0001] The invention relates to a medical dressing, especially a water-soluble and natural antibacterial medical dressing. The medical dressing can be in the form of fabric, non-woven fabric, powder, patch, membrane, aerosol and sponge. Absorbed by the human body, it can be used in medical operations, field first aid, home hemostasis, and wound protection, and has the functions of preventing adhesion, preventing infection, and promoting healing. Background technique [0002] Most of the existing medical dressings are made of materials containing plant polysaccharides or animal polysaccharides, such as plant polysaccharide cellulose, sodium alginate, hyaluronic acid or animal polysaccharides chitin, chitosan and the like. After the etherification reaction of cellulose, although hemostasis, absorption, and compatibility are good, it does not have antibacterial function. When used for trauma hemostasis, it will shrink and scab, causing local discomfort; use on p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/28A61L15/42A61L15/50
Inventor 张镁
Owner 北京泰科斯曼科技发展有限公司