A 3D-printed patch could help you recover from a heart attack
 

Scientists have dreamed of easily patching up heart tissue in the wake of heart attacks, but there are always gotchas: for example, it's no mean feat to replicate the complex structures of real tissue. However, there may be a solution in sight. Res...

https://www.engadget.com/2017/04/23/...d-heart-patch/