3D printing technology has a high degree of manufacturing flexibility, which is particularly suitable for use in personalized mass manufacturing medical scenarios. Modeled directly from CT scan data, Through the method of additive manufacturing, joint structures such as prostheses that are suitable for the unique characteristics of patients can be quickly manufactured, which can achieve a high degree of matching with the patient's damaged parts, improve the accuracy of medical products and the success rate of surgery, and greatly save the treatment time and cost. In addition, the development of micron-scale metal printing technology also provides support for the development of micro-complex structure interventional medical devices, greatly optimizing the structure of interventional devices, taking into account the performance of micro-complex structure interventional devices.