Amster, Rothstein & Ebenstein LLP
Artificial disc
An artificial disc includes an upper joint (3) and a lower joint (7) which fit each other in a corresponding upper and lower relationship, and a removable fixed connection structure for fixedly connecting the upper joint (3) and the lower joint (7).
Beijing Naton Technology Group Co.
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Peng Fuqiang Cheng-kung Jianxiang
Chai Zhao Cheng Liu