Yet another medical application for 3D printing has been unveiled today. A Company called Potomac Photonics is uses intricate 3D printers print out tiny molds used in the manufacturing of PDMS (Polydimethylsiloxane) microchambers

http://3dprint.com/1889/potomac-phot...ncer-research/

These microchambers are used by researchers to harvest cancer cells in a sterile, controlled environment.