Medical Application Of Titanium And Titanium Alloys

Titanium and titanium alloys are characterized by good corrosion resistance, high specific strength, low elastic modulus, fatigue resistance, and good biocompatibility. Good biocompatibility this feature makes it compared with other metals a unique advantage, it is associated with the human body tissue, bone epithelial tissue has good affinity, small density, light quality, good corrosion resistance, and wear comfortable, therefore, titanium has a denture (dental implants) and artificial joint material is more and more widely favored.

According to relevant literature reports, every year, about 100 million patients in the world suffer from inflammation of the knee joint and arm joint, so it is imperative to treat replacement surgery, so the titanium alloy with excellent replacement function brings good news. Compared with ceramics, stainless steel, and other materials, the elastic modulus of titanium alloy is closer to that of human bones, and it has more advantages in the modulus size.

Therefore, titanium alloy can be widely used in the correction of ankle joints and elbow joints. In addition, the porous titanium alloy material can make the prosthesis bioactive and contribute to the healing of the femoral head; the surface of the titanium alloy has good biocompatibility and can induce the growth of bone cells, so it is respected by clinicians and orthopedic experts.

In addition, the application of titanium in skull repair is mainly reflected in: the use of titanium mesh can repair a defective skull. The application in human cardiovascular aspects is reflected in the preparation of artificial heart valves, blood filters, cardiac pacemakers, and artificial heart pumps. In addition, titanium as a denture (dental implant) through surface treatment, the aesthetic performance is increased, can meet the public's demand for beauty, and give people visual enjoyment.

At the same time, medical titanium alloy is used to make medical instruments:

1. light instruments, surgery can reduce the damage to blood vessels, muscles, and organs, and reduce doctors' fatigue, medical titanium instruments are more suitable for fine microsurgery;

2. good corrosion resistance and non-toxic, equipment does not rust, the wound is not easy to be infected, wound healing quickly;

3. medical titanium alloy with moderate elasticity, suitable for forceps, forceps, microscope, and other instruments;

4. When operated under the shadowless lamp, medical titanium is less reflective and more suitable than stainless steel. The main medical titanium medical instruments include scalpels, surgical forceps, surgical forceps, chest enlargement, suture needles, suture threads, etc. Medical titanium wire is used as a surgical suture, and it has the advantages of small tissue response and good torsion resistance compared with other materials (such as stainless steel wire). After suture, the surgical wound is not easy to inflammation, and the bone suture site is not easy to shift. Sutures generally use a medical titanium wire of 0.5~0.8mm diameter. In addition, titanium nickel alloy wire can produce soft elasticity and can promote rapid wound healing. In addition, medical titanium alloy is also an important material for auxiliary rehabilitation instruments, such as wheelchairs, crutches, splints, medical instruments, and so on.