Portable urinary catheterization device
A portable, urine device technology, used in catheters, medical science, drainage devices, etc., can solve the problems of air pollution, unfavorable patient recovery, increase the burden of pouring urine, etc. Effect
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Embodiment 1
[0021] Include the following steps:
[0022] Step 1. Dissolve sodium alginate in water to make a solution with a mass concentration of 5 g / L, add 25% Fe-MOF nanomaterials, 5% glycerin, 10% Tween 80, and 5% Nitrate Parkin ethyl ester sodium, homogenized after stirring for 1h, adjusted to 4, then vacuum degassed for 0.5h;
[0023] Step 2. Pour the sodium alginate nano-Fe-MOF antibacterial coating solution prepared above into the leveling mold and dry it at 30°C for 24 hours, then pour it into a calcium chloride solution with a mass fraction of 5% for curing;
[0024] Step 3, dissolving polyvinyl alcohol in water to make a solution with a mass concentration of 30g / L, adding a mass fraction of 4% glycerin, 10% Tween 80 and 10% nano-TiO 2 , after stirring for 5 hours in a water bath at 80°C, homogenize;
[0025] Step 4, dissolving chitosan in 5% acetic acid by volume fraction is to make a solution that mass concentration is 10g / L, adding mass fraction is 12% glycerol, 12% Tween 8...
Embodiment 2
[0031] The difference from Example 1 is that in step 5, the polyvinyl alcohol and chitosan solution are mixed uniformly at 3:1, and the polyvinyl alcohol-chitosan nano-coating solution is obtained after vacuum degassing for 0.5h, and then after curing The Fe-MOF antibacterial coating solution was poured into the mold at a ratio of 1:3, dried at 30°C and then peeled off to obtain a polymer coating with antibacterial function. The rest of the preparation was the same as in Example 1.
Embodiment 3
[0033]The difference from Example 1 is that in step 5, the polyvinyl alcohol and the chitosan solution are mixed uniformly at 2:1, and the polyvinyl alcohol-chitosan nano-coating solution is obtained after vacuum degassing for 0.5h, and then after curing The Fe-MOF antibacterial coating solution was poured into the mold at a ratio of 1:3, dried at 30°C and then peeled off to obtain a polymer coating with antibacterial function. The rest of the preparation was the same as in Example 1.
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