SiNtx Technologies Inc (SINT)

[boston745]

Have you actually read the various studies I posted?

There was a significant increase in tissue fibrosis with implantation time for all implant types tested. Interestingly, the tissue fibrosis in ceramic-on-ceramic THAs was significantly increased compared with metal-on-metal and ceramic-on-polyethylene.

H1 will still experience issues with metal staining and phase instability.

Naturally-occurring Fe-ions in the prosthetic joint space may also trigger phase instability in ZTA heads because enhanced phase transformation in one short-term stain-free retrieval (Case A) was also observed.

It appears Si3N4 increases the lifespan of poly liners by scavenging oxygen from the surface. This intern reduces wear. Also Si3N4 can reduce the potential osteolysis impact by deactivating osteoclasts and stimulating osteoblasts.

ZTA femoral heads were found to release a non-negligible amount of oxygen moieties from their surfaces, thus accelerating oxidative degradation of polyethylene. Conversely, Si3N4 ceramics exerted a protective role towards the polyethylene liner by scavenging oxygen from the tribolayer. The results of this work provide new insights into the interaction between bioceramics and polymers, which should also be considered when designing the next generation artificial hip joints with significantly elongated lifetimes.

There is evidence Zimmer is playing a role in Si3N4 hip development smoker. Between Zimmers donation of a liner to. 2.5m milestone payment that may have been paid to Sonnys research group.

As far as CrN/NbN coatings the studies ive read have to do with coating metal femoral heads. Howrver the application lf this coating is via magnatron sputtering a technique that can also be used to apply Si3N4 coatings. How easily could Zimmer integrate Si3N4 into its portfolio if it already mastered the coating technique? We know Zimmers got alot of projects surrounding Ceramics coatings of metals.