Analysis of current status and prospects of domestic 3D printing medical applications

In the fields of architectural design, auto parts manufacturing, aerospace and other fields, 3D printing technology has shown amazing creativity. In recent years, its application prospects in medicine have been generally optimistic. What problems can 3D printing technology solve in clinical practice? What is the current state of domestic research? What are the difficulties in product launching that need to be broken?

“When young doctors train surgical skills, especially in the early stages, try to get rid of the hands on the patients.” Na Yanqun, honorary director of Peking University Wu Jieping Urology Medical Center, said that the surgical simulation realized by 3D printing technology will be in the future. Greatly help improve the quality of medical care .

“Although 3D printing has not been explored in the domestic medical field for a long time, it is expected to break the fixed pattern of 'masters with apprentices' in traditional doctor training, which brings a subversive attempt for medical education.” Na Yanqun introduced, “'Print' Individualized organs can be simulated by doctors during training and do not need to be practiced on patients."

Na Yanqun believes that a mature doctor also needs to borrow 3D printing to train. "For example, if you want to dig a kidney tumor, it is very challenging. Even a master of laparoscopic or open surgery is not fully grasped before surgery, but if he personally simulates the operation on the 3D printed kidney, surgery The actual effect will definitely improve."

In addition to simulated surgery, 3D printing built-in innovations are also optimistic. The first group of researchers in the field of spine surgery, Liu Zhongjun, chief physician of the Department of Orthopaedics, Peking University Third Hospital, participated in the study of 3D printed orthopedic implants, which can be used to fill the cervical vertebrae with artificial pivots to completely restore the anatomy.

Liu Zhongjun analyzed: "Our bones are irregular in shape. For example, if a certain part is removed, the ideal state is to find a filler with the same anatomical structure to repair it. 3D printing can solve this problem."

At present, Chinese scientists have a forward-looking grasp of 3D printing technology and have independent intellectual property rights. “Our cervical spine-related papers have been published in international authoritative journals. In 2012, 3D printed built-in materials have been implanted in the human body, but the United States had similar products listed in October 2013. This shows that people are listed on the market. Liu Zhongjun admits that there are still bottlenecks in the approval process when applying products to the market.

Other constraints have yet to be broken. Imported 3D printers need to be "run-in" with domestic medical research. Zhang Wei, deputy director of Peking University Wu Jieping Urology Medical Center, said: "Foreign imported equipment is often directly printed industrial products, which does not meet our design requirements, so the real products have not yet formed."

Na Yanqun believes that after the idea becomes productive, how to promote the product and how to pay the cost are the problems that need to be faced in the future.

Although domestic clinical and practical research projects are scarce, industry experts are optimistic about the prospects of 3D printing technology in the medical field. “We are fortunate to see that the cost of 3D printing is not higher than that of traditional methods, and in some products, it can achieve lower costs,” said Liu Zhongjun.

Na Yanqun revealed that the next step is to simulate the kidneys, tumors, and blood vessels in a material similar to the tissue of the human body, and to operate on them with scalpels and scissors instead of the current model against the hard state. "This goal we think will be realized soon."

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