This is a very interesting and heart warming story (literally). A doctor by the name of Matthew Bramlet is working hard to create an online downloadable library of 3D heart models, which can be printed out via any 3D printer. He hopes to get contributions for his library, which will be based out of the Jump Trading Simulation and Heart Center in Peoria, from doctors and institutions world wide. His goal is to get the best possible models of as many congenital heart defects as he can, both pre and post op. For more details about this unique project, check out the following article: http://3dprint.com/3655/library-3d-printable-hearts/

Matthew Bramlet: