OSTEOSYNTHETIC MATERIAL, COMPOSITED IMPLANT MATERIAL, AND PROCESS FOR PREPARING THE SAME
    5.
    发明公开
    OSTEOSYNTHETIC MATERIAL, COMPOSITED IMPLANT MATERIAL, AND PROCESS FOR PREPARING THE SAME 失效
    接骨材料,复合材料用于生产植入物和方法

    公开(公告)号:EP0795336A1

    公开(公告)日:1997-09-17

    申请号:EP96930407.0

    申请日:1996-09-13

    申请人: TAKIRON CO. LTD.

    IPC分类号: A61L27/00 B29C43/02 B29C43/16

    摘要: A high bending strength and high density material for osteosynthesis, which comprises a biodegradable and bioabsorbable crystalline thermoplastic polymer material, and a high strength implant material, comprising a composite material in which a bioceramics powder of from 0.2 to 50 µm in particle size is dispersed in the polymer material, wherein crystals of the polymer material are pressure-oriented not in a uni-axial direction but basically in parallel with a plurality of reference axes; and a production method by pressure orientation, which comprises preparing in advance a biodegradable and bioabsorbable crystalline thermoplastic polymer material or a dispersed mixture of the polymer material and a bioceramics powder and melt-molding it into a pre-molded material which is then press-charged at a cold temperature into a cavity of a closed type forming mold, thereby obtaining an oriented molding. Since the osteosynthesis and implant materials are dense and high strength oriented moldings having less anisotropy in which crystals are oriented in parallel with a plurality of reference axes, excellent ideal biomaterials can be provided which have appropriate hydrolysis property, can maintain sufficient strength during a period required for bone union and are degraded and absorbed at such a rate that they do not induce inflammatory reactions after healing of the fractured bones so that re-operation is not required.

    摘要翻译: 高弯曲强度和高密度的骨接合术材料,它包括一种可生物降解和生物吸收的结晶热塑聚合物材料,并且具有高强度的植入材料,其包含一种复合材料,其中的从0.2到50微米的颗粒尺寸的生物陶瓷粉末分散 在聚合物材料中,所述聚合物材料的worin晶体是压力导向不是在单一轴方向上,但基本上与参考轴的多个平行; 并通过压力取向,该方法包括在预先制备一种可生物降解和生物吸收的结晶热塑聚合物材料或聚合物材料的分散的混合物和生物陶瓷粉末及其制造方法熔融模塑成一个前模塑材料的所有其然后按充电 在低温下成密闭型成形模具的空腔,从而得到取向的模塑件的。 由于骨接合术和植入物材料是具有较少各向异性致密且高强度的取向模塑件中哪结晶取向平行的基准轴复数,能够提供具有适当的水解性,可在所需的期间保持足够的强度优异的理想的生物材料 对于骨性愈合,并降低和速度搜索thatthey所以根本不需要再次手术的骨头骨折愈合后不引起炎症反应吸收。