公开(公告)号：US5480438A

公开(公告)日：1996-01-02

申请号：US125327

申请日：1993-09-22

申请人： Yuusuke Arima ,  Shinichi Miyamoto ,  Kensho Sahira

发明人： Yuusuke Arima ,  Shinichi Miyamoto ,  Kensho Sahira

IPC分类号： A61C8/00 ,  A61F2/00 ,  A61F2/28 ,  A61L27/00 ,  A61L27/32

CPC分类号： A61L27/32 ,  A61F2310/00796

摘要： A metallic implant base is coated with two bioactive ceramic layers. An inner bioactive ceramic layer is coated on the implant base. An outer bioactive ceramic layer is coated on the inner bioactive ceramic layer. The inner bioactive layer is vitrified at a ratio of not less than 50 volume percent, thereby improving the bonding of the inner bioactive layer to the metallic implant base and preventing migration of the metal ions from the metallic implant base. The outer bioactive ceramic layer is vitrified to a ratio of substantially less than 50 volume percent, thereby providing a desired porosity.

摘要翻译： 金属植入物基底涂有两个生物活性陶瓷层。 内部生物活性陶瓷层涂覆在植入物基底上。 外部生物活性陶瓷层涂覆在内部生物活性陶瓷层上。 内部生物活性层以不小于50体积％的比率被玻璃化，从而改善内部生物活性层与金属植入物基底的结合并防止金属离子从金属植入物基底迁移。 将外生物活性陶瓷层玻璃化至基本上小于50体积％的比例，从而提供所需的孔隙率。