As an ideal material for biological titanium equipment and titanium alloy -- human body implant, metallic material is a serious branch of material science. It has been used in human body implant for more than 400 years. Britain was the first country to use pure gold plates to repair skulls and fit teeth, and then, after fainting, to continuously operate the key pieces for stable fractures of silver, iron plates, iron wires and iron-base alloys. During the second national night war, countries such as the United Kingdom, the United States and Japan manipulated large amounts of stainless steel as human implants. In the early 1950s, following the development of the rare metal property, titanium, niobium and zirconium in the processed and cast state were used as human implants for clinical implementation.
In the past five years, a group of enterprises, and stainless steel and other human implants. Acceptance of titanium and titanium alloy manufacturing of femoral head, hip crisis juncture, humerus crisis juncture, skull, knee, elbow crisis juncture, shoulder crisis juncture, palm means the crisis moment, jaw and heart valves, kidney distinguishes the membrane, blood vessel expander, plywood, prosthesis, fastening screws and other hundreds of transplanted into the body of the metal, the exquisite effect, by the medical profession give a high evaluation. Human implants are special functional materials closely related to human life and health. With other metal material wrestling dispute, manipulate titanium and titanium alloy advantages are mainly six points: 1, light weight; 2. Low elastic modulus; 3. Non-magnetic; 4. Non-toxic; 5. Corrosion resistance; 6, high strength, good toughness. Titanium and titanium alloy has excellent operating characteristics, is recognized nationally in the biological medical scale of excellent metal materials, with the operation of stainless steel, cobalt base alloy and other metal materials to wrestle, has more application advantages, development space is very large. The use of metallic materials as human implants is gradually increasing. Since 1990, more than 2 million metal implants have been used annually in the United States alone, of which 2 are for pith and femur. 5%; In the European market, the supply and demand of external stable products and internal stable products are flourishing, mainly in France, Germany, Italy and Britain. In 2004, the market price reached 2. 800 million us dollars, of which stable products accounted for 85 percent. 7%. In the past 10 years, the market growth rate of biomedical materials and products has been linked at 20% ~ 25%. Looking forward to the next 10 ~ 15 years, the property development of medical tools, including biomedical materials, will reach the scale economy and become the pillar property of the national economy. Medical titanium and titanium alloy material advantages have been accepted by the medical profession, has been more and more patients, given the trauma of identity and the identity of the war, deeds common reserve levels near forward's identity, such as first choice of titanium and titanium alloy for medical implants increases the very eve of the diffuse space, is bound to become a titanium application development in the new economy increase point.
