A study of innovative bone repairing and biomaterials for reconstruction, jointly undertaken by Chongqing Medical School and Sichuan University, has passed a validation check. The n-HA materials, a proprietary result derived from the study, can form a composite material integrating with PA66, and present a structure similar to natural bones. The novel material has passed the test by the National Institute for the Control of Pharmaceutical and Biological Products.

The research team has produced some 10 types of hard tissues in 20 specifications that meet the standards of clinical surgery, including bone filling materials, bone plates and blocks, rachis substitutes, and artificial rachis plates. The post-operation tracking records show that all the artificial bone repairs made of n-HA/PA66 have reached clinical satisfactions. The research team also developed products standards and operation procedures for clinical application. In early 2005, the products were granted with the manufacturing permit issued by the State Food and Drug Administration. During the three years where the project was implemented, the research team had filed 5 invention and 6 utility patent applications, with 2 registered products marks, in addition to 15 domestic and international papers. The project also nurtured 9 doctoral and 8 master?痵 students.