You can discover a lot about scientific advances from taking a tour of a medical institution. Find out whether Agios Andreas General Hospital is open to visitors while you are in the area.
You'll be spoiled for sightseeing choice when staying in Patras. Agios Andreas General Hospital is a good place to begin here, but there are lots of other worthy places to discover. University of Patras, Georgiou I Square, and Rio-Antirio Bridge are not far from the health care institution and will top off your day nicely.