Patent ID: 8920869

Claim:
A method of producing a metal implant for a living body, the method comprising: mechanically processing a titanium alloy to form a metal implant substrate; forming a titanium oxide layer on a surface of the processed metal implant substrate with a thickness of 3 nm to 20 nm; cleaning a surface of the titanium oxide layer on the metal implant substrate in an alkali degreasing solution; cleaning the titanium oxide layer of the metal implant substrate in a plasma atmosphere; ionizing a bio-active material selected from a group of consisting of Li, Na, Mg and Ca; and implanting the ionized bio-active material on the surface of the plasma cleaned titanium oxide layer of the metal implant substrate, wherein the ionized bio-active material is implanted on the surface of the plasma cleaned titanium oxide layer with 40 KeV of ion energy, wherein the ionized bio-active material is implanted while maintaining a temperature of the plasma cleaned titanium oxide layer at 25° C., and wherein the ionized bio-active material is implanted to form a bio-active material layer having a thickness of 0.1 μm.