Medical use of titanium alloy rods
The use oftitanium-rod titanium rods in medical treatment
With the development of the titanium industry, more and more fields find the use of titanium products. The titanium rod is one of the best.
(1) Medical titanium rod Titanium, as an emerging material, has been used in the global pharmaceutical industry, surgical instruments, human implants and other medical fields for decades, and has achieved great success.
(2) For bone and joint damage caused by trauma and tumors in the human body, titanium and titanium alloys can be used to manufacture artificial joints, bone plates and screws, which are now widely used in clinical practice. Also used in hip joints (including femoral head), knee joints, elbow joints, metacarpophalangeal joints, interphalangeal joints, mandibles, artificial vertebral bodies (spinal orthoses), pacemaker housings, artificial hearts (heart valves), Dental implants, and titanium mesh in cranial plastic surgery.
(3) The requirements for medical titanium rod implant materials can be classified into three aspects: the biocompatibility of the material with the human body, the corrosion resistance of the material in the human body environment, and the mechanical properties of the material.
Medical titanium rod has low density, light weight, high strength, good corrosion resistance, high temperature resistance, low temperature resistance, strong acid resistance, and strong alkali resistance. It is a very good material. Our company has complete processing equipment and rich processing experience. The medical titanium rods produced have been tested by a third party (chemical composition, mechanical properties, metallographic structure, tolerance), and the polished and car polished rods have undergone flaw detection. The product quality Stablize. Mainly used in mechanical equipment, electroplating equipment, medical, various precision parts and other industries.
Titanium alloy rods are commonly used in orthopedic surgery for the treatment of bone fractures and osteotomies. Titanium alloy rods are also used for spinal fusion and arthrodesis, where they provide a strong, lightweight, and corrosion-resistant material. Titanium alloy rods can also be used to replace damaged or diseased bone in reconstructive surgery. Titanium alloy rods are also used in dental implants to provide a strong, corrosion-resistant material that can be used to secure dental crowns and bridges.
Artificial joints and artificial bone substitute materials should have the following basic properties: light, high-strength materials, biocompatibility and corrosion resistance, the tissue reaction of the implant in the body will not cause material deterioration, fatigue caused by repeated stress, and small damage. The most important properties of metal implants are shape, machining and finish. They must remain functional for their expected lifetime and not degrade under fatigue, wear, corrosion and impact loads. Titanium and titanium alloys meet all the above requirements. The artificial joint materials such as denture powder, polypropylene, and plexiglass used for the first time have low strength, are easy to break, and have poor biocompatibility. Later, stainless steel was used, but the specific gravity of stainless steel is larger, about twice that of human bones, and it will corrode and break in the body under the action of body fluids. Cobalt-chromium alloy is also an excellent material for artificial joints, but unfortunately, cobalt and chromium are toxic to humans. Titanium and titanium alloys are ideal materials for artificial joints, with the advantages of small specific gravity (similar to that of human bones), high strength, good machining, and corrosion resistance. The titanium materials used for surgical transplantation are mainly pure titanium and ti-6al-4veli alloy. Recently, the transplant materials ti-6al-7nb and ti-13nb1-13zr have good compatibility with the human body and have also been approved by ASTM standards. Using titanium as an artificial bone, cells can regenerate on it and bones can grow. Titanium has a good affinity with human bones, epithelium and tissues. In order to improve the surface quality of implant materials connected with human bones, it is also an effective method to apply bioceramic layers to rough implant surfaces. At present, titanium and titanium alloys have been widely used in artificial bone joints, artificial bones, joint feet, broken bone fixers, bone marrow nails, artificial heart valves, skulls, etc. According to statistics, my country's annual demand for titanium alloy artificial joints exceeds 5,000 units, and the clinical application effect is good.
Application of titanium in orthopedic surgery
The elastic modulus of medical titanium alloy is closer to human bone than stainless steel, and it is suitable for human orthopedic surgery. In orthopedic surgery, nickel-titanium shape memory alloys are often used. Studies have shown that NT-SMA is a new material with wear resistance, corrosion resistance, shape memory effect, pseudoelasticity and damping properties and integration, such as more and more applications in orthopedics, in addition to commonly used bone plates and intramedullary nails, mandibular fixation , Scoliosis correction, such as NT-patella, NT-curved fork nail, NT-bow, NT-ting device (such as specially designed for sacral reconstruction), has achieved satisfactory results. As for the titanium alloy materials used in the human body, countries are still working hard to explore and find a new type of titanium alloy that is safer and more reliable and benefits people all over the world.
