Complex self-curing material, method and application of bioactivity calcium phosphate/tricalcium silicate
A kind of tricalcium silicate, biologically active technology
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Embodiment 1
[0051] 1) Blending liquid preparation
[0052] Weigh 2.0 g of analytically pure sodium pyrophosphate and dissolve it in 98.0 mL of deionized water to obtain a 2.0% sodium pyrophosphate solution, sterilize, seal it in a sterile bottle, and set aside.
[0053] 2) Preparation of calcium phosphate / tricalcium silicate composite bone defect filling material:
[0054] The calcium phosphate / tricalcium silicate composite material powder with a tricalcium silicate content of 20wt.% and the blending solution are fully blended at a liquid-solid mass ratio of 0.5:1 for 0.5-1 minute, injected into the mold, and heated at 37°C and After curing for more than 24 hours under 100% humidity, the calcium phosphate / tricalcium silicate composite pellets (CPC / C 3 S Pellets). The compressive strength of the pellets can reach 14.0∽19.0 MPa, the degradation rate can reach about 15% after 21 days, and it has good biological activity.
Embodiment 2
[0056] 1) Blending liquid preparation
[0057] Weigh 2.0 g of analytically pure sodium pyrophosphate and dissolve it in 98.0 mL of deionized water to obtain a 2.0% sodium pyrophosphate solution, sterilize, seal it in a sterile bottle, and set aside.
[0058] 2) Preparation of calcium phosphate / tricalcium silicate composite self-curing material:
[0059] The calcium phosphate / tricalcium silicate composite material powder with a tricalcium silicate content of 30wt.% and the blending solution are fully blended at a ratio of liquid-solid mass ratio of 0.5:1 for 0.5-1 minute, which can be used for minimally invasive treatment. Calcium phosphate / tricalcium silicate composite self-curing material. The self-curing material can be solidified in about 15 minutes after being injected into the defect, and the self-curing material slurry can be completely injected within 5 minutes. The compressive strength of the self-curing material can reach 36.0∽40.0MPa, and the degradation rate is abo...
Embodiment 3
[0061] Preparation of concoction
[0062] The simulated body fluid is used as the blending solution, and the ion concentration of the simulated body fluid is as follows (pH=7.25-7.4):
[0063] Table 2 Ionic composition of simulated body fluid
[0064] Ion species
Na +
K +
Mg 2+
Ca 2+
Cl -
HCO 3 -
HPO 4 2-
ion concentration
(mmol / L)
142.0
5.0
1.5
2.5
148.8
4.2
1.0
[0065] Preparation of calcium phosphate / tricalcium silicate composite degradable material
[0066] The calcium phosphate / tricalcium silicate composite material powder with a tricalcium silicate content of 1-50wt.% and the blending solution are fully blended at a liquid-solid mass ratio of 0.5-1.0:1 for 0.5-1 minute, and injected into the mold. Cured at 37°C and 100% humidity for more than 24 hours, after which the calcium phosphate / tricalciu...
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