Research Status of Biomedical Porous Ti and Its Alloy in China

Porous Ti not only inherits the physical and chemical properties of titanium alloy, such as higher special stiffness, special strength, excellent corrosion resistance and biocompatibility, but also its unique pore structure gives it the characteristic of ultra-low density and large surface area. It is an alternative material for human body with structural and functional integration. It has been widely used in the field of clinical medicien in recent years. Many research and applications show that the properties and functions of porous Ti strongly depend on the pore structure of porous Ti prepared by different methods. Surface activation technology can significantly improve the surface activity of porous Ti and shorten the healing period after implantation. In this paper the common preparation methods of porous Ti were introduced based on the structure and properties of porous Ti. The surface modification, biological activity, osteoinductive properties of porous Ti and their domestic research status were summrized. The development of biomedical porous Ti and titanium alloys was prospected.