Scientists 3D-Print Human Heart Pump

July 17, 2020

(Med Gadget) Scientists at the University of Minnesota have 3D printed a beating heart muscle ‘pump’ consisting of pluripotent stem cells and an extracellular matrix. The researchers grow the stem cells within the structure until they reach an appropriate cell density, and then differentiate them into cardiomyocytes. The 1.5 cm sized structure can pump fluids, and could serve as a heart muscle model to study diseases and test new therapies.