Carmat are making the most progress with an artificial heart, but it is only in clinical trials. The battery is a backpack with a power cord fed in behind your

Carmat are making the most progress with an artificial heart, but it is only in clinical trials. The battery is a backpack with a power cord fed in behind your ear. Unfortunately for your dad, we just aren't there yet with fixing a broken heart. In 10 to 20 years, probably.