Applications of medical titanium alloys in the medical field

As a new type of alloy and a carrier material, medical titanium alloy is widely used in limb implants, alternative functional materials, dentistry, medical devices and other related fields. Titanium and titanium alloys have the following characteristics: good corrosion resistance, high specific strength, low elastic modulus, fatigue resistance, and good biocompatibility. Among them, good biocompatibility gives it unique advantages compared with other metals, so it is widely favored in the medical field. However, due to its low wear resistance and process performance, efforts to further improve it are also limited. Ongoing.

With the rapid development of the national economy, the demand for medical titanium alloys in the medical field continues to increase due to its excellent properties. As a metal material with excellent biological properties, titanium and its alloys have good application prospects in the medical field. However, compared with developed countries, there is still a certain gap in the research, development and application of titanium alloy materials in my country, such as the high elastic modulus, poor surface activity, poor wear resistance and corrosion resistance of titanium alloys. will directly affect the biocompatibility of the material. Therefore, in order to develop new titanium alloys with better comprehensive properties, our country should increase its efforts in material research and development, focus on innovation, and develop biomedical materials with low elastic modulus, high wear resistance, corrosion resistance, and excellent biocompatibility. Titanium alloy material.

Titanium has good affinity with human connective tissue and bone epithelial tissue, and its excellent mechanical properties also reflect its advantages in medical alloys. It has low density, light weight, good corrosion resistance, and is comfortable to wear. Therefore, titanium is widely favored as dentures (dental implants). In addition, after surface treatment, the aesthetic properties of titanium dentures are increased, which can meet the public's demand for beauty and give people visual enjoyment.

1.For medical device direction

Medical titanium alloy medical instruments are the third generation of surgical instruments after carbon steel and stainless steel. In order to improve the anti-rust performance, stainless steel equipment often undergoes surface treatments such as chrome plating and electropolishing. However, chromium plating corrodes, and the electroplated chromium layer has certain effects on the human body.

The benefits of using medical titanium alloys as medical devices are: 1. The devices are lightweight and can reduce damage to blood vessels, muscles, and organs during surgery, reducing doctor fatigue. Medical titanium devices are more suitable for fine microsurgery; 2. Good corrosion resistance and non-toxic, The equipment does not rust, the wound is not easily infected, and the wound heals quickly; 3. Medical titanium alloy has moderate elasticity and is suitable for use as pliers, tweezers, microscopic scalpels and other instruments; 4. When operating under a shadowless lamp, the reflective performance of medical titanium is weak , more suitable than stainless steel;

Medical titanium medical instruments mainly include: scalpels, surgical forceps, surgical tweezers, chest expanders, suture needles, sutures, etc. Medical titanium wire is used as surgical suture. Compared with other materials (such as stainless steel wire), it has the advantages of small tissue reaction and good torsion resistance. After suturing, the surgical wound is less likely to become inflamed and the bone suture site is less likely to shift. Sutures generally use medical titanium wire (TA1 or TA2 wire) with a diameter of 0.5~0.8mm. In addition, the soft elasticity produced by titanium-nickel alloy wire can promote rapid wound healing.

In addition, medical titanium alloys are also important materials for auxiliary rehabilitation equipment, such as wheelchairs, crutches, splints, medical instruments, etc.

Widely used in artificial joint materials

Titanium plays an important role in dental development