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In 400-300 B.C., the Phoenicians used metal wires to restore missing teeth; in China, during the Tang Dynasty (618-907 A.D.), there are records of silver paste fillings, which consisted of silver, mercury and tin, very similar to the modern silver amalgam. The first metal materials widely used in clinical treatment were precious metals such as gold, silver and platinum with good chemical stability and processing properties, but mainly for repair, until the early 20th century, the development of metal materials in biomedical devices became more extensive...
Medical Tantalum - excellent medical metal material
Overview:
Modulus of elasticity 186-191 GPa, tensile strength 200-300MPa. Microhardness 120D - 30170MPa; it has good biocompatibility and resistance to physiological corrosion.
Advantages:
Tantalum implanted in bone can form an osseous bond with the surrounding new bone. Since 1940, when pure tantalum was first used in the field of orthopedics, it has been used in clinical practice for nearly 80 years. When tantalum is implanted in soft tissues, muscles and other tissues can grow normally on the button, without irritation or toxic side effects in human body. It is used as bone plates, cranial plates, bone screws, dental implants, facial prostheses, denture and surgical sutures and stitches.
Applications:
1. Tantalum Wire
2. Tantalum sheets
Tantalum metal can be made into various shapes and sizes of tantalum sheets, which can be implanted according to the needs of various parts of the body, such as repairing and closing cracks and defects in broken skulls and fractures of limbs. After the artificial ear is made from tantalum sheets and fixed on the head, the skin is then transplanted from the leg.
3. Tantalum stent
Tantalum wire can be woven into a mesh balloon-expandable stent. The tantalum stent is clearly visible under X-ray and is very easy to monitor and follow up.
4. Tantalum coating
People take advantage of the excellent corrosion resistance of tantalum metal and coat it on the surface of certain medical metal materials to stop the release of toxic elements and improve the biocompatibility of metal materials, while tantalum coating also improves the visibility of the material in the human body.LET'S GET IN TOUCH
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