3D printing technology has roughly four applications in the biomedical field. "Professor Ma Ling Biomedical Research Associate State Key Laboratory of West China Hospital, Sichuan University today on the biomedical Forum 2014 world 3D print technology industry conference, said," The first 3D print model for medical education, case discussions; two It is a 3D printed medical device, such as a prosthesis; the third is 3D printing for tissue functional products, such as the mandible, organ scaffold, skull, which have entered the clinical, some of which are degradable and partly non-degradable because of its main function. It is to play the role of a bracket. The fourth aspect is mainly the 3D printing of living tissues and organs. â€
Although the potential of 3D printing technology in the field of biomedicine is huge, the fact is that 3D printing still has a long way to go to achieve safe and stable organ transplantation and cell culture. Jack Zhou, a professor at Drexel University in the United States, said: "Now some companies claim to be able to print biological cells in 3D. Most of the cells are actually dead cells. The biggest problem is how to ensure the survival of cells, which requires nutrient solution, auxin, and printing. It is very difficult to get rid of any trauma, etc. Therefore, if cell printing is successful, it will take 10 to 15 years, or even 20 to 30 years, to be truly usable."
Experts said that although there have been reports that people in the United States have been successfully transplanted 3D printed bladder and kidneys, this is only a case of dying patients in hospitals. Transplanting 3D printed organs is only temporary success, making it temporary. Survival, but how long can the above patients survive, whether the replaced organs can function normally, whether they will produce other side effects or toxins, and it is not known at present. This requires time to test.
An obvious contrast is that 3D printing is more difficult to develop in biomedical applications than in cultural creativity or industrial manufacturing. So where is the difficulty? "At present, the main problem is not a technical obstacle, because we have a better clinical trial effect." Professor Chen Jimin of the School of Laser Engineering, Beijing University of Technology believes that "the problem is to obtain clinical evidence. This is a problem. Another question It is the designer, he has to know the doctor very well, and at the same time, it is also clear about the engineering printing. This talent is currently in short supply. There are also a series of problems such as materials, equipment and software."
Because of the high investment cycle of the threshold, medical 3D printing is considered by many entrepreneurs to be "an unreliable business that burns money." So, how much market space does 3D printing have on medical care? Professor Chen Jimin believes: "Light is a huge market space in the field of dental implants. If the traditional method of implanting teeth is based on the experience of doctors, it is easy to grow the teeth; if we use the technology of the guides In fact, this guide plate technology is relatively simple to implement, it is a simple shape. With such a simple printed shape, it is easy to make this tooth very accurate, and for the patient, his cost will not increase too much. There is also a relatively large space. For example, doctors need fake tools in the process of surgery, which means that there is a huge market space for assistive devices."
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