Composition for biomaterial; preparation process
    5.
    发明授权
    Composition for biomaterial; preparation process 失效
    生物材料组成; 准备过程

    公开(公告)号:US5717006A

    公开(公告)日:1998-02-10

    申请号:US535273

    申请日:1995-10-10

    CPC分类号: A61L27/50 A61L27/46

    摘要: Composition for biomaterial for resorption/substitution of support tissues, dental tissues, bone tissues and osteoarticular tissues, which is made up of 40 to 75% by weight of a mineral phase comprising either a mixture of .beta. tricalcium phosphate (A) and hydroxyapatite (B), in a ratio A:B of between 20:80 and 70:30, or calcium titanium phosphate (Ca(Ti).sub.4 (PO.sub.4).sub.6) (C), and 60 to 25% by weight of a liquid phase comprising an aqueous solution of a polymer derived from cellulose. The mineral phase is a powder with a particle size 80 to 200 .mu.m in diameter. Preferably, the liquid phase is hydroxypropyl cellulose, and the concentration of the polymer in the liquid phase is from 0.5 to 4% by weight. The composition is prepared by mixing the mineral phase and the polymer of the liquid phase in an aqueous solution of defined viscosity, and sterilizing the liquid composition thus obtained.

    摘要翻译: PCT No.PCT / FR95 / 00150 Sec。 371日期1995年10月10日第 102(e)1995年10月10日日期PCT提交1995年2月8日PCT公布。 WO95 / 21634 PCT公开号 日期1995年8月17日组织用于支持组织,牙组织,骨组织和骨关节组织的吸收/替代的生物材料,其由40至75重量%的矿物相组成,所述矿物相包含磷酸三钙(A )和羟基磷灰石(B),比例为A:B为20:80至70:30,或磷酸钙钛(Ca(Ti)4(PO4)6)(C)和60至25重量% 包含由纤维素衍生的聚合物的水溶液的液相。 矿物相是直径为80〜200μm的粉末。 液相优选为羟丙基纤维素,液相中聚合物的浓度为0.5〜4重量%。 通过将矿物相和液相聚合物在规定粘度的水溶液中混合并对由此获得的液体组合物进行灭菌来制备组合物。