Absolutely ok to use hospital grade receptacles wherever TR are not required. They are the highest grade of non explosion proof devices and I'd guess even explosion proof are about the enclosure.
The redundant insulated ground is about verification of voltage rise and bonding testing without adding in all the other parallel paths. It is also about reducing voltage rise between any 2 conductive points in cases of faults to ensure no current is using the patient as a parallel path.
Hospital grade receptacles don't isolate the mounting strap like Isolated ground outlets do.