3D Bioprinting new blood vessels or even organs may be possible in the future. A first step has been taken with the first commercial bioprinter, by Organovo. It currently prints cell structures but nobody has dared to put them in their bodies yet. So while this looks like a promising development, I’d take good care of your body just a little longer – say, 30 years or so?
Organ Printing
Source: www.shapeways.com