Absorbable wound buffer dressing
An absorbent and wound technology, applied in medical science, bandages, etc., can solve the problems of inability to apply deep wounds and surgery, increase the risk of wound infection, and slow absorption of gelatin, so as to facilitate dissolution, cell proliferation and differentiation, and good healing Effects of environment, good biocompatibility
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Embodiment 1
[0050] Example 1 Absorbable Wound Buffer Dressing
[0051] The absorbable wound buffer dressing is formed by mixing carboxymethyl starch and body fluid, and the weight ratio of the carboxymethyl starch to body fluid is 10:100.
Embodiment 2
[0052] Example 2 Absorbable Wound Buffer Dressing
[0053] Absorbable wound buffer dressing, the absorbable wound buffer dressing is formed by mixing carboxymethyl starch and body fluid, and the weight ratio of carboxymethyl starch to body fluid is 10:120.
Embodiment 3
[0054] The preparation method of embodiment 3 absorbable wound buffer dressing
[0055] Prepare absorbable wound buffer dressing according to the proportioning of embodiment 1, comprises the following steps:
[0056] 1) Dissolve 20 g of carboxymethyl starch in 300 ml of distilled water, stir evenly, and adjust the pH to 9-10 with sodium hydroxide to obtain a starch suspension;
[0057] 2) Dissolve 4g of Span 80 in 50ml of liquid paraffin, stir at 50°C for 20 minutes to prepare a mixed emulsified dispersant, then add starch suspension, and stir for 20 minutes to obtain a starch emulsion;
[0058] 3) Dissolve 0.1 g of epichlorohydrin in distilled water, then add it into the starch emulsion, stir and cross-link for 5 hours, the stirring speed is 100 rpm, and the temperature is 40°C to obtain a cross-linking liquid;
[0059] 4) Leave the cross-linking liquid to stand for stratification, discard the supernatant, add 8 times the volume of ethyl acetate to the milky white liquid in ...
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