Lifetime prostheses for implantation in hard tissue - have diamond or carbon coating at point of contact with bone to protect against cytotoxicity

摘要

Prostheses for implantation into hard tissue and intended for the patient's lifetime use may be fully or partially coated at the point of contact with the bone with diamond or another suitable biocompatible carbon coating. This extends durability and protects the bone surface from the cytotoxic influences of the implant material. The bone contact may be made directly onto the coated surface of the implant or to an additional connection of hydroxyapatite which is analogous in function. This combines biomechanical advantages with the biocompatibility advantages of the diamond or carbon coating.