In the last episode, we were introduced to Tom -- a man who was flung into a medical twilight zone of heart issues and the procedures to fix them.  In this continuation of the story, meet Steve Kreuzer -- an engineer from Exponent who specializes in assisting in the development of the very kind of technology that saved Tom’s life.  Steve walks us through just what kind of technology it takes to create these life-saving devices, and how much more complex it is when you’re trying to predict how these devices will interact with human tissue.