申请人:Brainbase Corporation
公开号:US05934287A1
公开(公告)日:1999-08-10
An implant includes a main body member having bio-compatibility, and particles formed of bioactive material and dispersedly provided at the surface of an embedded section of the main body member. Each of the particles has a part embedded in the embedded portion and the other part protruding from the embedded portion. The main body member is formed of titanium or titanium alloy. The particles having osteo-conduction are formed of a material selected from among a group consisting of sintered substances of hydroxylapatite, .alpha.-tricalcium phosphate, .beta.-tricalcium phosphate, tetra-calcium phosphate, a single substance of amorphous calcium phosphate, monetite, brushite, 45S4 glass, and a mixture of them. It is desirable that the embedded section surface has a surface roughness in a range of 5 to 50 .mu.m.
一种植入物包括一个具有生物相容性的主体成员,以及由生物活性材料形成的颗粒,分散地提供在主体成员的嵌入部分的表面。每个颗粒都有一个嵌入在嵌入部分中的部分和从嵌入部分突出的另一部分。主体成员由钛或钛合金制成。具有骨导性的颗粒由从羟基磷灰石、α-三钙磷酸盐、β-三钙磷酸盐、四钙磷酸盐、无定形磷酸钙的单一物质,蒙脱石、磷酸二氢钙、45S4玻璃和它们的混合物中选择的材料形成。最好嵌入部分表面具有5到50微米范围内的表面粗糙度。