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Ti-review
发表时间:2013-06-18 阅读次数:6544次
生物医用钛合金 1 2 3

 

 

 

Traditional materials c.p.Ti, Ti6Al4V etc.
Features for orthopaedic implants

High strength

Bioinert/Biotolerent materials

High corrosion resistance

Wear resistance

Osseointegration
A: Low modulus titanium biomaterials
B: Surface modification I

Surface treatment:

Polishing

Machining

Shot Peening/Sandblasting

Acid Etching/Alkali Treatment

   Surface modification II

Coatings for enhanced wear and corrosion resistance:

TiN

TiC

TiO2

Diamond-like Carbon Coating (DLC)

   Surface modification III

Coatings for high osseointegration:

HA/Ca-P Coatings

SiO2

Nb2O2

Bioactive Molecules Coatings

C: Nanophase materials

Unique surface and mechanical properties

Large surface energy

Closer to osteoblast scale

Enhance osseointegration

D: Nitinol

Shape memory effect

Enhanced biocompatibility

Superplasticity

High damping properties

Applications: Orthodontic wires for dental; Intravascular

stents; Bone fracture fixtures; Taples for foot surgery;

Porous spinal implants etc.

 

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