1, metal and alloy materials: including gold, 316L stainless steel (iron-chromium-nickel alloy), cast cobalt-chromium-molybdenum alloy, titanium and alloys.
2, carbon materials: including glass carbon, low temperature isotropic carbon.
3, polymer materials: including acrylates, polytetrafluoroethylene, poly maple and so on.
4, ceramic materials: including bio-inert ceramics, bio-active ceramics, biodegradable ceramics.
5, composite materials: that is, the composite of two or more materials, such as metal surface coating ceramics.
Commonly used implant material is mainly titanium, coating is also titanium or cobalt alloy as a substrate. The physical and chemical properties of cobalt is known for its light weight, stainless steel and high strength processing performance. Cobalt has a wide range of medical applications such as artificial bone and joints, heart valves, cardiac pacemakers, dental implants and so on. Titanium has good abrasion resistance, good corrosion resistance, mainly the formation of oxide film on the surface, was oxidized at room temperature stability, air heating to 800 ℃ or more oxidation intense with semiconducting low modulus of elasticity, similar to bone, can produce *** vibration of biocompatibility, non-toxic and non-side-effects, non-magnetic, non-irritation, in vivo stability of the humidity is good, not easy to adhere to the organic matter, has a good prospect for application.