| 摘要 |
The present invention provides an injectable gel-type bone-repairing bioactive material and its preparation method. Each unit dose of said material is composed of 1 ml of component A and 45 to 55 mg of component B, wherein each milliliter sterile saline of component A contains: 10 to 40 mg alginate, 0.1 to 1 mg bone morphogenetic protein, and 10 to 20 mg stabilizer. In the component B, each milligram (mg) of component B contains: 0.0498 to 0.1476 mg aqueous-indissolvable calcium compound, 0.0498 to 0.2953 gluconolactone, 0.0040 to 0.0159 mg polyvinylpyrrolidone and some bulking agents. Said material has good biocompatibility, which can be applied simply and safely. It can be implanted into a specific treatment site of orthopedic patients without operation. Animal experiments show that the osteogenesis activity of said material is comparable to those solid bone-repairing materials containing identical doses of bone morphogenetic protein, which need to be implanted by surgery. It is applicable for reparation of bone fracture, bone nonunion, and bone defect, as well as for the treatment of diseases in orthopedic surgery and dental surgery.
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