A close-up of a synthetic matrix of soft robotic actuators that can be wrapped around a heart ventricle and inflated to squeeze and twist the heart in the same way a real heart pumps blood. Credit: Ellen Roche, et. al
https://scitechdaily.com/mit-bionic-heart-made-of-heart-tissue-and-a-robotic-pumping-system-beats-like-the-real-thing/