| 摘要 |
PURPOSE:To eliminate exfoliation, detachment and chipping by forming a surface layer gradually increasing in the concn. of the constitutional elements of an biologically active inorg. material toward the outer surface thereof to the surface layer part of a core material composed of a metal material or high strength ceramics material. CONSTITUTION:As a core material of an artificial bone, a metal material such as SUS 316 or a high strength ceramics material is used and a surface layer based on biologically active inorg. material components strongly integrated with the core material is formed to the surface layer part of the core material by the ion injection of the constitutional elements of the biologically active inorg. material or by the combination of the vapor deposition of the core material and the ion injection of said constitutional elements. This biologically active inorg. material has characteristics reacting with the peripheral bone tissue in a living body to form the strong chemical bond to a natural bone and, for example, apatites are used to bring about biocompatibility and natural bone bondability. By this method, the inorg. material can be bonded to the natural bone rapidly and fast fixing can be kept over a long period of time. |
