Heart-hugging robot does the twist (and squeeze)
Mimicking action of a real heart pumps up blood flow in failing organ, pig study shows
![robot heart](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/01/011717_MR_robotic-heart_main.jpg?fit=860%2C460&ssl=1)
HEART HUGGER A robotic sleeve wrapped around a pig’s heart (shown) can pump blood using inflatable tubes (grey) that compress the heart.
Ellen Roche/Harvard SEAS