1, industry standards need to be solved: 3d printing lack of industry standards is domestic as well as international *** with the embarrassing situation faced, there is no international corresponding regulations for 3d printing, the United States civil society organization international association for testing of materials (ASTM) to establish the 3d printing industry standards for 3d printing definition of the classification of ASTM has established an industry standard for 3D printing, which defines and categorizes 3D printing, but does not expand on the details. The establishment of relevant regulations requires the scientific and legal communities to **** the same efforts to promote. Academician Dai_Rong believes that compared to printing implanted bone, 3D printing has more room for development in the rehabilitation aids market, and it will be easier in terms of policy approval.
2, the market is very large, insufficient knowledge: Beijing Institute of Technology Laser Engineering Research Institute Professor Chen Jimin believes that although 3D printing in the field of pre-operative planning and personalized medical assistive device applications have advantages, such as 3D printing technology to replace the CNC production of dental molds is a general trend, but this technology is not irreplaceable, for the development of the traditional medical device market has only played the role of icing on the cake. Therefore, although 3D printing technology has nearly matured, but its commercialization has just started. For the Chinese market, it is urgent to solve the problem of localization of printing materials;
3, active tissue printing is a difficult problem: the design and development of new materials in 3D printing technology is the key. How to use 3D printing technology to make the combination of cell and material prints with activity is the technology applied to the biomedical field of a major problem. Professor Liu Dongsheng of Tsinghua University introduced at the meeting its polypeptide, DNA hybridized hydrogel prepared by DNA sequence design, which not only has the characteristics of second-ready type, high strength, self-healing, and good permeability, but also prints out the cells to maintain a high survival rate, with normal biological morphology and cellular function, which creates the conditions for the living transplantation of 3D-printed organs.