Medical devices done dirt cheap

Smartphones and 3D printing have the potential to bring life-saving medical technology to the masses at a fraction of the cost of conventional medical devices. From the $50 prosthetic hand to bubble wrap's conversion to in vitro diagnostics, here are four stunning examples of advanced medical and IVD technology that cost less than a pair of athletic shoes.Click on the arrow below to learn about the $50 prosthetic that, in some circumstances, outperforms a $42,000 device.