Hydroxyapatite-containing injection filling preparation and preparation method thereof
A hydroxyapatite and preparation technology, which is applied in the fields of medical cosmetology and biomedicine, can solve problems such as migration, difficulty in forming, and inability to achieve cosmetic effects, and achieve the effects of preventing migration, improving durability, and promoting skin cell growth
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Embodiment 1
[0032] Weigh 55 parts of hydroxyapatite, pulverize and grind into microspheres of 25-45 μm; add 3 parts of sodium carboxymethylcellulose and 3.9 parts of mannitol to the ground hydroxyapatite microspheres, continue to grind evenly, and Add the ground mixed material to 100 parts of phosphate buffer solution with a pH of 6.5, stir for 3 hours under negative pressure (-0.02Mpa), discharge the material, fill it into a 2.25ml pre-filled syringe, and extinguish it by gamma ray irradiation. bacteria.
Embodiment 2
[0034] Weigh 40 parts of hydroxyapatite, pulverize and grind it into microspheres of 10-20 μm; add 1 part of carbomer, 2 parts of triethanolamine, and 5 parts of glycerin to the ground hydroxyapatite microspheres, and continue to grind evenly. Add the ground mixed material to 100 parts of phosphate buffer solution with a pH of 5.5, stir for 5 hours under negative pressure (-0.05Mpa), discharge the material, fill it into a 2.25ml prefilled syringe, and irradiate it with gamma rays Sterilize.
Embodiment 3
[0036] Weigh 65 parts of hydroxyapatite, pulverize and grind into microspheres of 50-70 μm; add 5 parts of hydroxypropyl methylcellulose and 2 parts of mannitol to the ground hydroxyapatite microspheres, continue to grind evenly, and The ground mixture was added to 100 parts of 0.9% sodium chloride solution, stirred for 5 hours under negative pressure (-0.07MPa), discharged, filled into a 2.25ml prefilled syringe, and sterilized by gamma ray irradiation.
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