Chitosan gelatine polyvinyl alcohol biological hemostatic dressing

A technology of polyvinyl alcohol and hemostatic dressings, applied in the field of medical hemostatic dressings, chitosan gelatin polyvinyl alcohol biological hemostatic dressings, can solve the problems of small elasticity, limited hemostatic effect, poor solubility, etc. Ease of absorption and high adsorption capacity

Inactive Publication Date: 2004-12-15
张淑荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, hemostatic dressings with chitin and chitosan as the main components have been developed successively. Materials such as gelatin sponges are mostly used, and there are also hemostatic materials with chitin and gelatin as the main components. , traction and hemostatic effects are not ideal e

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0057] Example 1

[0058] Dissolve 20g of chitosan in 600ml of 0.2% acetic acid solution, take 20g of polyvinyl alcohol and add boiling water to dissolve, 15g of gelatin will be heated to melt, 15g of glycerol will be dissolved in water, combine the above solutions, fully stir to make uniform, freeze-dry, cut into parts Pack, Co60 sterilized to prepare hemostatic dressing.

Example Embodiment

[0059] Example 2

[0060]Dissolve 40g of chitosan in 1000ml of 1.2% acetic acid solution, take 55g of polyvinyl alcohol and add boiling water to dissolve, 30g of gelatin will be heated to melt, 40g of glycerol will be dissolved in water, combine the above solutions, fully stir to make uniform, freeze-dry, cut into parts Pack and sterilize to prepare hemostatic dressing.

Example Embodiment

[0061] Example 3

[0062] Dissolve 60g of chitosan in 800ml of 0.8% acetic acid solution, add 40g of polyvinyl alcohol to boiling water to dissolve, 10g of gelatin to melt, and 10g of glycerol to dissolve in water, combine the above solutions, stir well to make uniform, freeze-dry, cut and separate , Co60 sterilized to prepare hemostatic dressing.

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PUM

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Abstract

The biological chitosan-gelatin-polyvinyl alcohol hemostatic dressing is compounded with chitosan, gelatin, polyvinyl alcohol and glycerin, and is prepared into hemostatic cotton, spray and other externally applied medicine forms via conventional production process. The present invention has high adsorption amount, maintained amount, no toxicity, easy absorption by body and high hemostatic function and is superior to available hemostatic dressing.

Description

Technical field: [0001] The present invention relates to the improvement of producing hemostatic dressing with chitosan as the main raw material, and further provides a chitosan gelatin polyvinyl alcohol biological hemostatic dressing, which belongs to medical hemostatic dressing [0002] technology field. Background technique [0003] Chitosan (chiosail.cs), also known as chitosan, is the main derivative of chitin. Its preparation is simple, its source is abundant, its price is cheap, and it is easy to be biodegraded into non-toxic small molecule compound glucosamine, so it is more and more popular. people's attention. In recent years, hemostatic dressings with chitin and chitosan as the main components have been developed successively. Materials such as gelatin sponges are mostly used, and there are also hemostatic materials with chitin and gelatin as the main components. , traction and hemostatic effects are not ideal enough. Simply using chitosan and gelatin as a hemo...

Claims

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Application Information

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IPC IPC(8): A61L15/32
Inventor 张淑荣
Owner 张淑荣
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