| 摘要 |
PURPOSE:To provide the bone implant having high rigidity and wear resistance by applying the surface of a metallic core with resin powder, then covering the coating with a heat resistant film and heating a resin powder layer to partially dissolve the powder layer under vacuum suction from the aperture of the film, thereby bringing the film into tight contact with the core. CONSTITUTION:The core 4 of the stem part 2 of the artificial bone head 1 is formed to, for example, a prescribed shape from a proper metallic material in the case of production of the artificial bone head of the artificial thigh joint to be implanted into the marrow hole of the femur. The resin powder layer 5 of high-performance engineering plastics, etc., is then stuck and formed on the surface of the metallic core 4 and thereafter, the circumference thereof is coated with the heat resistant glass fibers 5 having air permeability and further, the circumference thereof is coated with the polyimide film 7 which is formed to a cylindrical shape sealed on one side and has excellent heat resistant. The surface of the metallic core 4 is then heated to melt the boundary part of the resin powder layer 5 and the core 4 and the pressure in the film 7 is reduced by suction from the suction port 8, by which the film 7 is brought into tight contact with the surface of the core 4. |
