Chinese bio-tech firm, Sichuan Revotek Co, announced back in October 2015 that they successfully developed a 3D blood vessel bio-printer. They aren’t yet regenerating human organs but apparently they’re on the path. Baby steps, next comes perfecting the process, human trials, etc. We’re still a ways off from this becoming a common thing, but exciting nonetheless.
More details HERE.
Before Sichuan Revotek’s breakthrough, scientists developed another way to create blood vessel networks. This is where creativity meets science. Video below from the Universtiy of Pennsylvania manages to explain and show their solution in less than 90 seconds.