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Why is titanium alloy the most commonly used material in the medical industry?

November 25, 2023

Why is titanium alloy the most commonly used material in the medical industry?

There are several reasons why titanium alloys are widely used in the medical industry:

Biocompatibility: Titanium alloy has excellent biocompatibility, is basically non-irritating to human tissues, and is not likely to cause rejection reactions. This makes titanium alloys ideal for manufacturing medical implants and prostheses, such as artificial joints, dental implants, bone plates and screws.

Lightweight and high strength: Titanium alloy is lighter than many other metal materials, but has high strength. In medical devices and implants, this lightweight yet high-strength property helps reduce device weight, reduce patient burden, and improve implant durability.

Corrosion Resistance: Titanium alloys have excellent corrosion resistance, which is very important for use in the human body. The internal environment may contain salt water, body fluids and other corrosive substances. Titanium alloys can resist corrosion of materials in these environments, ensuring the long-term stability of implants and medical devices.

High-temperature strength: Titanium alloy can still maintain high strength and stability at high temperatures. This is crucial for some medical equipment that needs to be used in high-temperature environments, such as sterilization instruments.

Plasticity: Titanium alloy has good plasticity and formability, and can be made into complex-shaped parts through various processing methods to adapt to the design needs of medical equipment and implants.

Non-magnetic: Titanium alloys are non-magnetic, which is important when manufacturing implants that require magnetic resonance imaging (MRI). Traditional metals such as stainless steel may interfere with MRI, but titanium alloys can avoid this problem.

Taking the above factors into consideration, titanium alloys have become widely used materials in the medical industry due to their unique properties, especially in the manufacture of implants and high-demand medical devices.

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