Nanotechnology is coming faster every day with little robots smaller then the eye can see. These little robots will be able to do surgeries not accessible to surgeons of the past.
The movie 'Fantastic Voyage' isn't too far away. The idea of shrinking humans down to do microsurgery probably isn't going to happen, but we are fast approaching machines that can do it. With the advancements in imaging technology, we may be able to put a doctor at the actual wound using virtual technology.