As a new type of alloy, medical titanium alloy is also a carrier material, which is widely used in limb implantation, alternative functional materials, dentistry, medical equipment and other related fields. Titanium and titanium alloys are characterized by good corrosion resistance, high specific strength, low elastic modulus, fatigue resistance, and good biocompatibility. Among them, the characteristics of good biocompatibility make it have unique advantages compared with other metals, so it is widely favored in the medical field, but due to its low wear resistance and process performance, it is committed to further improving its work. Ongoing.
With the rapid development of the national economy, the demand for medical titanium alloys in the medical field is increasing due to its excellent performance. 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 are still some gaps in the development and application of titanium alloy materials in China, such as: high elastic modulus of titanium alloy, poor surface activity, insufficient wear resistance and poor corrosion resistance, etc. Will directly affect the biocompatibility of the material. Therefore, in order to develop new titanium alloys with better comprehensive performance, China should increase the research and development of materials, 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 tissues and bone epithelial tissues, and its excellent mechanical properties also reflect its advantages in medical alloys. And the density is small, the weight is light, the corrosion resistance is good, and the wearing is comfortable. Therefore, titanium is widely favored as a denture (implant). In addition, after the surface treatment of titanium dentures, the aesthetic performance is increased, which can meet the public’s demand for beauty and give people visual enjoyment.
According to relevant literature reports, about 100 million patients in the world suffer from inflammation of the knee and arm joints, and replacement surgery is imperative. Therefore, titanium alloys with excellent replacement functions bring good news for this. Compared with ceramics, stainless steel and other materials, the elastic modulus of titanium alloy is closer to human bones, and it has more advantages in modulus. Therefore, titanium alloys are widely used in the correction of ankle joints and elbow joints. In addition, the porous titanium alloy material can make the prosthesis biologically active and help the healing of the femoral head; the titanium alloy surface has good biocompatibility and can induce bone cell growth, so it is respected by clinicians, orthopedics experts, etc. .
The advantages of implant restorations, titanium and titanium alloys as implant restorations are: ①High strength, good chemical stability and biocompatibility; ②Non-toxic, no harm to human body; ③Low elastic modulus, Better match with human bones; ④ The elasticity and shape recovery function of memory alloy. In summary, the application of titanium in skull repair is mainly reflected in: the use of titanium mesh can repair the defective skull. The application in the human cardiovascular is reflected in the preparation of artificial heart valves, blood filters, cardiac pacemakers and artificial heart pumps.