Artificial Heart
Artificial Heart An artificial heart is a mechanical device that is implanted into the body to replace the biological heart. The term �artificial heart� has often inaccurately been used to describe ventricular assist devices (VADs), which are pumps that assist the heart but do not replace it. An artificial heart is also distinct from a cardiopulmonary bypass machine (CPB), which is an external device used to provide the functions of both the heart and lungs. CPBs are only used for a few hours at a time, most commonly during heart surgery.