This is wonderful, but as a doctor having been in many ORs the real challenge becomes how a human assistant will know exactly what the surgeon wants next from building intuition with years of working alongside. Surgeons are very particular about their tools and the rhythm at which they expect the surgical team to work. Despite their reputation as grumps, they deeply value the humans in their team for that reason.
This is amazing for what we can do with only a Spark which anybody could buy. But real OR use is many years away and so are the AI systems that will need to exist for that to happen.