Recently, the world's first copper-titanium alloy bone needle jointly developed by the Institute of Metal Research of the Chinese Academy of Sciences and enterprises has been officially approved for market launch by the National Medical Products Administration. This product is also the first of its kind to be approved worldwide. It marks that China is leading the world in the functional design of medical metal materials.
The drawbacks of traditional titanium alloy bone pins: high strength but prone to infection
Titanium alloy bone pins are commonly used implant devices in internal fixation surgeries for fractures. Traditional titanium alloys have been widely applied in the field of orthopedics. However, their biggest drawback is the lack of antibacterial ability. Postoperative infection is one of the difficulties in clinical treatment in orthopedics. Once it occurs, it not only increases the patient's pain but may also lead to surgical failure or even a need for a second operation.
The Chinese Academy of Sciences has spent over a decade conducting research: "Adding copper" to titanium alloys
To solve this problem, the Institute research team of Metal Research of the Chinese Academy of Sciences began to research in 2013. They added an appropriate amount of copper elements to the titanium alloy creatively, and successfully developed a new type of antibacterial titanium alloy material. Through long-term exploration, the team not only retained the high strength and high hardness of the traditional titanium alloy, but also made the mechanical properties of the material even more excellent. More important thing is that the copper-containing titanium alloy can continuously release trace copper ions, which endows the material with its own antibacterial function, can significantly reduce the risk of postoperative infection and is safe and reliable.
From laboratory to clinic: rigorous testing and industrialization breakthrough
To truly apply this technology to patients, the team from the Chinese Academy of Sciences worked closely with enterprises. Over many years, they completed material performance tests, animal experiments, and multi-center clinical trials. All indicators met the strict standards set by the state for implantable medical devices. Eventually, they successfully obtained the marketing approval.
Currently, the research team has mastered mature processing techniques. They have accumulated over 40 patents and have formed a complete set of processing capabilities for various types of profiles, including copper-titanium alloy plates, rods, and wires. They also have the conditions for large-scale production. This lays a solid foundation for further widespread clinical promotion.
Meaning: The transition from "passive implantation" to "active functionality"
Traditional medical metal materials are mostly inert materials that only provide mechanical support and do not have the ability to actively participate in the regulation of biological functions. The launch of copper-titanium alloy bone needles has achieved a leap from passive implantation to active antibacterial and functional design. This breakthrough not only provides a new solution to the problem of bone infection, but also enables China to gain international discourse power in the field of high-end medical metal materials.
In the future, the copper-titanium alloy technology is expected to be applied in various fields such as orthopedics, dentistry, and cardiovascular implant devices, promoting more "Made in China" medical metal materials to reach the forefront of the global market.
Baoji Yibaite New Material Technology Co., Ltd. specializes in manufacturing the medical titanium wire