Preparation method of dressing suitable for burns
A porous material and temperature control technology, applied in the medical and health field, can solve the problems of poor antibacterial and antibacterial ability, unfavorable wound healing, unsuitable hemostatic dressing for burn wounds, etc., to isolate external bacteria, promote burn or scald healing, and achieve good biological phase capacitive effect
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Embodiment 1
[0020] The preparation method of the dressing that is applicable to the burn of the present embodiment, the steps are as follows:
[0021] (1) Take the polymer material, add it into water, stir until it is completely dissolved, and after mixing evenly, under vacuum conditions, control the temperature to 300°C, and perform heating and foaming treatment to obtain a porous material;
[0022] (2) Weigh 20g of collagen particles and grind them into powder, dissolve them in water to make a colloidal liquid with a mass fraction of 0.5% to 10%, add 5g of sodium alginate, stir well and pour it on a glass or stainless steel plate On the surface, casting into a film, drying at room temperature to obtain a film-like bioabsorbable film;
[0023] (3) The bioabsorbable membrane obtained in step (2) is crimped with the porous material after foaming treatment in step (1), and then placed in a vacuum to freeze-dry, and the temperature is controlled to - Freeze-drying at 80° C. for 2 hours to o...
Embodiment 2
[0025] The preparation method of the dressing that is applicable to the burn of the present embodiment, the steps are as follows:
[0026] (1) Take 20g of gelatin, add it to water, then add 0.02g of hydroxypropyl methylcellulose, stir until it is completely dissolved, mix evenly, and control the temperature at 100°C under vacuum conditions to perform heating and foaming treatment , molding for 2 hours, the porous material is obtained;
[0027] (2) Weigh 20g of gelatin particles and grind them into powder, dissolve them in water to make a colloidal liquid with a mass fraction of 0.5% to 10%, add 5g of sodium alginate, stir well and pour it on a glass or stainless steel plate , cast into a film, and dry at room temperature to obtain a film-like bioabsorbable film;
[0028] (3) The bioabsorbable membrane obtained in step (2) is crimped with the porous material after foaming treatment in step (1), and then placed in a vacuum to freeze-dry, and the temperature is controlled to - ...
Embodiment 3
[0030] The preparation method of the dressing that is applicable to the burn of the present embodiment, the steps are as follows:
[0031] (1) Take 20g of bone collagen, add it to water, then add 0.08g of hydroxypropyl methylcellulose, stir until completely dissolved, mix well, and control the temperature at 100°C under vacuum conditions to heat and foam Processing and molding for 2 hours, the porous material is obtained;
[0032] (2) Weigh 20g of gelatin particles and grind them into powder, dissolve them in water to make a colloidal liquid with a mass fraction of 0.5% to 10%, add 5g of sodium alginate, stir well and pour it on a glass or stainless steel plate , cast into a film, and dry at room temperature to obtain a film-like bioabsorbable film;
[0033] (3) The bioabsorbable membrane obtained in step (2) is crimped with the porous material after foaming treatment in step (1), and then placed in a vacuum to freeze-dry, and the temperature is controlled to - Freeze-dry at...
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