Artificial Heart Update

"A simple artificial heart could permanently replace a failing human one":

[R]esearchers have been trying for decades to make an artificial heart that can be permanently implanted. But building one that imitates a real heart over a long period of time without breaking or causing infections or blood clots is incredibly difficult. One problem is that the more parts there are, the more things could go wrong.

To solve the problem, Sanjiv Kaul and his team at Oregon Health and Science University are developing an artificial heart with an extremely simple design -- it contains a single moving piece with no valves. They believe it could be the first such device that could last the rest of a person’s life...