via Engadget
Researchers at Tel Aviv University managed to successfully print the first ever 3D heart that uses cells and biological materials from a patient. The medical breakthrough, which was published today in Advanced Science, managed to produce an entire heart, complete with cells, blood vessels, ventricles and chambers — a marked improvement over previous attempts that only printed simple tissues without vessels.
The process of creating the heart started with a biopsy of fatty tissue taken from patients. The cellular material from the tissues was used as the “ink” for the print job. That allowed researchers to create complex tissue models including cardiac patches and eventually an entire heart. It should be noted that the heart isn’t very big — it’s only about the size of a rabbit’s heart. But the technology that made it possible could eventually lead to the production of a human-sized organ. Currently, the hearts can only contract but researchers plan on culturing the 3D printed hearts and teaching them how to operate like the real deal. Once that process is complete, they will attempt to transplant them into animal models.