Applications of titanium alloys in biomedical fields

Due to their excellent comprehensive properties, titanium and titanium alloys are widely used in implant interventional materials, surgical and rehabilitation equipment, surgical instruments, medical equipment, etc. in the biomedical field, as shown in Table 2.

1. Implant intervention materials

As a load-bearing component implanted in the body, the implant material must have a certain strength, and at the same time, it needs to have a good radius and an elastic modulus that matches the human body to avoid material breakage and failure in the body. Through processes such as alloy design material preparation and subsequent thermomechanical treatment, titanium alloys can meet medical mechanical performance requirements. In addition, they have the characteristics of high specific strength, corrosion resistance and good biocompatibility. They are widely used in orthopedics, dentistry, and interventional cardiac surgery. It has been widely used in fields such as bone plates, orthopedic wires, implants and interventional equipment. With the continuous advancement of titanium alloy device design and manufacturing and medical diagnosis and treatment technology, the demand for medical titanium alloys

getting bigger.

2. Surgery and rehabilitation equipment

Titanium alloys have the following advantages as surgical instruments: the instruments are lightweight, which can relieve doctor fatigue and reduce patient damage; they are corrosion-resistant and non-toxic, making wounds less susceptible to infection and healing quickly; they have moderate elasticity and are suitable for surgical aluminum, surgical tweezers, and suture needles; they have reflective properties Weak, suitable for operation under shadowless lights. Therefore, titanium alloy surgical instruments are favored by surgeons. Due to its high specific strength, lightness in use, and strong corrosion resistance, titanium alloys are also used to make rehabilitation equipment such as wheelchairs, crutches, and splints.

3. Medical equipment

Chemical substances such as acids, alkalis and salts are used in the pharmaceutical production process, which places high requirements on the corrosion resistance of pharmaceutical equipment. Because titanium alloys are corrosion-resistant, have high specific strength and good heat transfer properties, the use of titanium materials in pharmaceutical equipment such as reaction tanks, heat exchangers, condensers, porous filters, etc., on the one hand, greatly alleviates the corrosion of key pharmaceutical equipment components. , on the other hand, it also improves production efficiency and drug quality, and is widely used in the production process of analgesic and anti-inflammatory drugs, vitamins, anesthetics and pharmaceutical raw materials.

In addition, titanium alloys have become the preferred material for the manufacture of nuclear magnetic resonance equipment components and medical infrared devices due to their light weight, corrosion resistance, and non-magnetic characteristics.