Titanium is a very common substance. The purity of sponge titanium can reach 99.9%. Titanium alloy products have very stable physical and chemical properties, and will not be absorbed by the human body. They will not have chemical reactions with body fluids and drugs, nor will they ionize, nor will they react with human musculoskeletal muscles. Therefore, they are called "biophilic metals".
Because titanium is "bio-friendly", titanium in the human body can resist the corrosion of secretions and is non-toxic. It is suitable for any sterilization method. Therefore, it is widely used in the manufacture of medical instruments, including human hip joint, knee joint, shoulder joint, flank joint, skull, active heart valve and bone fixation clip.
Biomedical titanium alloy materials are a kind of functional structural materials used in biomedical engineering. They are mainly used in the production and manufacture of surgical implants, orthopaedic instruments and other products.
According to the professional standards for surgical implants and orthopaedic devices, titanium alloy materials can be classified into the category of "metal materials" in the "materials for surgical implants", while titanium alloy materials can be used as cardiovascular, bone and joint, bone joint, spine, orthopaedic devices, cardiac pacemakers and defibrillators, cochlear implants Raw materials for nerve stimulators and other implant products.
Biomedical titanium alloys can be divided into α Type a titanium alloy (such as pure titanium series) α+β Type titanium alloy (such as Ti6Al4V, etc.) and β Compared with medical stainless steel and cobalt based alloys, Ti-type titanium alloys (such as ti12mo6zr2fe) and TiNi shape memory titanium alloys have the characteristics of small specific gravity, high specific strength, low elastic modulus, corrosion resistance, free cutting and good biocompatibility.
