Against the record
ROSA, from Zimmer Biomet, is at stage 5 of 5 on our ladder: regulator-cleared or mass market. Cleared where approval applies, or widely sold. The latest milestone on its record is from 24 Jan 2019: The FDA cleared the ROSA Knee System through the 510(k) route (K182964). The application was filed by Orthosoft, a Zimmer Biomet company.
This video comes from the maker's own channel, and makers show their robots at their best. The stage above comes from dated public records, not from the video.





