I read several years ago about manufacturers sterilizing medical tools with radiation before they left the factory. I could imagine that the setup for doing that is too complex and dangerous for a regular hospital to run, but could it be offered as an outside service? Tools that can't undergo autoclaving could be sent out for irradiation after every surgery.
But this is very much not my area, so there are probably a hundred things wrong with my suggestion that I'm too uneducated to see.