Microsurgery by a robot sounds like it will be better than an experienced guy with a knife and a degree. Proof of concept had a titanium thread follow a curved path through the cheek into the base of the brain while a dummy patient was in an MRI machine. The destination was accurate within a couple millimetres and could have been used for epilepsy repair on a real patient, the kind of repair you can stand up and walk home from. Cadavers are next and real patients in ten years. That "thread" had a couple inside layers capable of steering the outer shell and giving a pathway to deliver service. Bring it on, but don't skip the practice stage.
Story at Science Daily News.