Non-scar plaster for treating trauma and its preparing process and usage
A non-marking, trauma-free technology, applied in medical preparations containing active ingredients, pharmaceutical formulations, powder delivery, etc., can solve the problems of poor human cell affinity, slow wound healing, lack of physiological activity, etc., and achieve no rejection. , The effect of preventing bleeding and oozing, reducing wound pain
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[0038] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.
[0039] One: Take 1000 grams of crude chitosan as raw material, after further deacetylation, dissolve it in 900 grams of 4% acetic acid, slowly add 10% lye until mucus appears, cool to 15°C, and let it stand until it is hydrolyzed After 4 hours, neutralize with dilute acid until the pH value is 8, and produce flocs, stir continuously until the flocs are no longer produced, filter, and remove the sodium chloride to obtain the fine water-soluble chitosan.
[0040] Two: (1), take 500 grams of bletilla striata and crush it into small particles, add 2000ml of pure water to extract, the temperature does not exceed 100°C, concentrate at 90°C to 500ml after 2 hours, add 300ml of 95% ethanol when cooling to normal temperature, Stir while adding, and filter after standing for 6 hours. After filtering, the filtrate is polysacch...
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