Clinical first-aid hemostatic material
A technology of hemostatic materials and raw materials, which is applied in the hemostatic materials used in clinical medicine and its preparation field. It can solve the problems of insufficient water absorption rate and saturated water absorption rate of starch, hidden dangers of fibrin glue virus, and unsatisfactory hemostatic effect. Low dependence, better hemostatic performance, and excellent hemostatic function
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Embodiment 1
[0026] A hemostatic material, made of the following raw materials in parts by weight: 70 parts of cyclodextrin-based polyvinyl glycine copolymer, 5 parts of N-(3-triethoxysilylpropyl) glucamide modified carbon sponge , chitosan modified Agrimony powder 1 part.
[0027] The preparation method of the cyclodextrin-based polyvinyl glycine copolymer comprises the following steps: 23 g of vitamin K, 10 g of L-vinyl glycine, 8 g of allyl cyclodextrin, and 1 g of allyl diglycol dicarbonate , 5 g of polyethylene glycol monoallyl ether, and 0.2 g of azobisisobutyronitrile were dissolved in 100 g of dimethyl sulfoxide, stirred and reacted for 3 hours under a nitrogen atmosphere, then precipitated in ethanol, and washed 3 times with acetone , and then placed in a vacuum drying oven at 80° C. for 10 hours to obtain a cyclodextrin-based polyvinyl glycine copolymer.
[0028] The preparation method of the N-(3-triethoxysilylpropyl) glucamide modified carbon sponge comprises the following ste...
Embodiment 2
[0034] A hemostatic material, made of the following raw materials in parts by weight: 73 parts of cyclodextrin-based polyvinyl glycine copolymer, 7 parts of N-(3-triethoxysilylpropyl) glucamide modified carbon sponge , 2 parts of chitosan modified Agrimony powder.
[0035] The preparation method of the cyclodextrin-based polyvinyl glycine copolymer comprises the following steps: 23 g of vitamin K, 10 g of L-vinyl glycine, 8 g of allyl cyclodextrin, and 1 g of allyl diglycol dicarbonate , 5 g of polyethylene glycol monoallyl ether, 0.25 g of azobisisoheptanonitrile were dissolved in 115 g of N,N-dimethylformamide, stirred and reacted for 3.5 hours under a helium atmosphere, and then precipitated in ethanol , and washed 4 times with acetone, and then placed in a vacuum drying oven at 82° C. for 11 hours to obtain a cyclodextrin-based polyvinyl glycine copolymer.
[0036] The preparation method of the N-(3-triethoxysilylpropyl) glucamide modified carbon sponge comprises the foll...
Embodiment 3
[0042] A hemostatic material, made of the following raw materials in parts by weight: 75 parts of cyclodextrin-based polyvinyl glycine copolymer, 8 parts of N-(3-triethoxysilylpropyl) glucamide modified carbon sponge , 3 parts of chitosan modified Agrimony powder.
[0043] The preparation method of the cyclodextrin-based polyvinyl glycine copolymer comprises the following steps: 23 g of vitamin K, 10 g of L-vinyl glycine, 8 g of allyl cyclodextrin, and 1 g of allyl diglycol dicarbonate , 5 g of polyethylene glycol monoallyl ether, 0.3 g of azobisisobutyronitrile were dissolved in 135 g of N-methylpyrrolidone, stirred and reacted for 4 hours under a neon atmosphere, and then precipitated in ethanol, and washed with acetone 5 times, and then baked in a vacuum oven at 83°C for 12.5 hours to obtain a cyclodextrin-based polyvinylglycine copolymer.
[0044] The preparation method of the N-(3-triethoxysilylpropyl) glucamide modified carbon sponge comprises the following steps: placi...
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