A kind of implant prosthesis and its manufacturing method
A technology for implanting prostheses and prostheses, applied in the field of prostheses, can solve the problems of cumbersome operation steps and high processing costs, and achieve the effect of simple operation steps, non-sensitization, and obvious cytotoxicity
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[0032] The invention also discloses a preparation method for the implanted prosthesis, comprising:
[0033] Coating a surface modifier on the surface of the inert implant material and drying it to obtain the implant prosthesis;
[0034] The surface modifiers include water, dispersants and bioceramic materials.
[0035] In the present invention, a surface modifier is first coated on the surface of the inert implant material, which refers to a biomedical material that can remain stable in a biological environment and does not or only weakly react, including but Not limited to silicone rubber, polyethylene, polyvinyl chloride, acrylic, PTFE, polyacrylamide or polyurethane. In the present invention, there is no special limitation on the source of the inert implant material, which can be purchased commercially. There is no special limitation on the shape of the inert implant material, and it can be trimmed into a desired shape according to the actual situation. In the present in...
Embodiment 1
[0045] Add 4 parts by mass of sodium carboxymethylcellulose to 94 parts by mass of pure water and stir evenly, then add 2 parts by mass of nano-sized hydroxyapatite powder and stir evenly to obtain a surface modifier.
[0046] The obtained surface modifier is sterilized, and put into a hand-held pressure spray tank after being sterilized.
[0047] The silicone rubber was trimmed into a desired shape, and then the surface modifier was sprayed on the surface of the silicone rubber, and left to dry for 10 minutes to obtain the implanted prosthesis.
[0048] Biocompatibility testing of the above implants
[0049] Sampling from the above-mentioned implanted prosthesis, the sampling specification is 0.2mm × 1cm × 1cm, with this sampling sample as the experimental group, with polylysine-coated glass slides and pure silicone rubber as the control group, the experimental group and the control group Groups were sterilized and placed in 24-well plates, with 11 samples in each group, and...
Embodiment 2
[0084] Add 1 mass part of sodium carboxymethyl cellulose to 94 mass parts of pure water and stir evenly, then add 5 mass parts of nano-sized hydroxyapatite powder and stir evenly to obtain a surface modifier.
[0085] The obtained surface modifier is sterilized, and put into a hand-held pressure spray tank after being sterilized.
[0086] The silicone rubber was trimmed into a desired shape, and then the surface modifier was sprayed on the surface of the silicone rubber, and left to dry for 15 minutes to obtain the implanted prosthesis.
[0087] A biocompatibility test was carried out on the above-mentioned implant prosthesis, and the test results showed that the above-mentioned implant prosthesis had good biocompatibility, and the growth and differentiation of cells on the surface of the above-mentioned implant prosthesis were obviously better than pure silicone rubber materials.
[0088] The biosafety test of the above-mentioned implanted prosthesis shows that the hemolysis ...
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