Customized 3D-printed medical implants are becoming increasingly common, and a new study has taken this technology to the next level. Researchers at Naton Biotechnology have developed the world's first laser 3D-printed knee implant, which has been officially approved as an innovative medical device by China's National Medical Products Administration.
The study focused on enhancing the strength and consistency of implants made from cobalt-chromium-molybdenum (CoCrMo) alloys using the Laser Powder Bed Fusion (LPBF) 3D printing process. The team identified and corrected inconsistencies in the material's structure by optimizing heat treatment, ensuring the final implants are stronger, more reliable, and safer for patients.
This research provides crucial insights into the impact of 3D printing on metal implants and lays the groundwork for improved quality control in orthopedic manufacturing, thereby advancing the future of customized medical implants.
This research was led by Professor Changhui Song from South China University of Technology and Professor Jia-Kuo Yu from Beijing Tsinghua Changgung Hospital as co-corresponding authors. The study was conducted in collaboration with Senior Engineer Renyao Li from Naton Biotechnology (Beijing) Co., Ltd and other team members.
Credits
Lijin Dai and Changhui Song from South China University of Technology
