Metallic 3D printing medical devices are rapidly evolving, and personalized 3D printing is recognized, but there are many problems that cannot be ignored. Regarding the risk of 3D printing products, Dr. Yu Sen, Assistant Director of the Institute of Biomaterials, Northwest Institute of Nonferrous Metals, expressed his thoughts and understanding.
Development trends and clinical needs
With the development of modern living standards and the increase of various diseases, including bone tumors, bone defects and various diseases caused by traffic accidents. These diseases are significantly different in terms of personalization, in which case traditional medical device standard parts are not enough.
Traditional medical devices are aimed at basic structures, and 3D printing is the trend of personalized medical devices. Driven by technologies such as rapid prototyping technology, software development and integration, 3D printing of medical devices is on the way to development. At present, personalized 3D printing has been widely used and recognized throughout the world.
Assistant, Ph.D., Senior Engineer, Director, Institute of Biomaterials, Northwest Institute of Nonferrous Metals, Yusen
Thinking about the risk of 3D printing medical device products
3D printing medical device is a technology, technology is transformed into a product with a process, including three-dimensional modeling, 3D printing, post-processing three parts, each part has some links. 3D printing has advantages as a new technology, but there are also some problems.
Question 1: The theory drags the hind legs
3D printing is now very hot, but it still lags behind technology development in terms of design. Taking medical technology as an example, a clavicle or joint is printed, the shape is precisely controllable, and it is perfectly matched with the human body, but the human body is a living body, and each part has to bear different strengths, which is very demanding on the implant.
At present, 3D printing generally uses a porous structure, so what kind of micropores is best? What is the relationship between porous structure and biomechanical properties? These are all issues worth exploring. If long-term tracking reveals that the implanted 3D printed components are not as good as the traditional components, this is a further improvement in technology.
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