http://www.allimaging.com/store/c-5-...d-systems.aspx
We have an industrial ultrasound we bought used. The units are very expensive but there are also USB U/S wands that plug directly in to a computer I know nu wave makes one but I don't know how good they are or where to buy one I believe they are in the $5000-10000 range which makes them reasonable for what it is.