Patent ID: 9034051
Filing Date: 2015-05-19
Classification: A61F,A61L

Abstract:
1. A bone repair material comprising: a substrate made of titanium or a titanium alloy; and a titanate layer on the substrate, the titanate containing calcium whose concentration increases and subsequently decreases with increasing depth from a surface of the layer and is from 0.1 to 20 atom % within a region from the surface to a depth of at least 1 μm from the surface, wherein the titanate layer exhibits a scratch resistance of 20 mN or more when vibration 100 μm in amplitude is added to a stylus with a spring constant of 200 g/mm and the stylus is moved at a rate of 10 mm/sec under the application of a load increasing at a rate of 100 mN/min, and the bone repair material has an ability that apatite is formed on the whole surface of the material within 3 days in a simulated body fluid of ISO23317 kept at 36.5° C.