The amount of titanium used in medicine increased significantly
Titanium is an ideal material for medical implant because of its high specific strength and good compatibility with human body.
In terms of orthopedic fixation implants, titanium bone plates and bone screws produced by a medical device company in Tianjin, China, have been tested in a number of hospitals with no adverse reactions and good results. Ti-6Al-7Nb and Ti-5Al-2.5Fe alloys have been proven to have good biocompatibility and can form good binding with tissues. As orthopedic fixation implant, its clinical application is reliable. A number of domestic orthopedic equipment manufacturers have cooperated with hospitals to manufacture hip, knee, elbow, shoulder and finger joints, which have been applied in clinical practice.
A us company has developed a new type of beta alloy with high strength and fatigue properties, making it particularly suitable for use as a structural material for plastic surgery.
The US company developed the Ti-15Mo β alloy. Compared with the traditional Ti-6Al-4V alloy, the jaw plate and screw fabricated by this alloy have better reverse bending, fatigue and torsion properties, better notch sensitivity, better corrosion resistance and better compatibility. A new economic β titanium alloy for medical use has been developed by a domestic company. The metal has medium Young's modulus, is non-toxic and does not cause allergies. Compared with other medical alloys, it has cold resistance and can be used as medical structural material.
The research of Japanese biomedical titanium alloy is mainly based on β alloy. The third generation of new biomedical titanium alloys, such as Ti-35Zr-10Nb and Ti-29Nb-13Ta-4.6Zr, with low elastic model, high strength and toughness, low cost, easy machining and corrosion resistance, have been developed.
In surgical instruments, the use of titanium allows microscopic instruments to have better ends that are less prone to wear than stainless steel ends. The low density of titanium reduces the importance of microinstruments, reducing fatigue and discomfort for surgeons during long operations. Titanium, which is not magnetic, is the most suitable material for micro needle clips, surgical forceps and tweezers.