Israeli researchers say they have created the world’s first three-dimensional ,or 3D-printed heart using a patient’s own cells. The researchers, from Tel Aviv University, recently announced the experiment and showed off the new 3D printed heart. Their findings were published in the journal Advanced Science. They described the experiment as “a major medical breakthrough.” The lead researcher on the project was university professor Tal Dvir. He said in a statement that it was the first time that human cells had been used with 3D printing technology to successfully create a whole heart. Dvir added that the “printed” heart contains blood vessels which are needed to pump blood. Until recently, scientists working on medical methods combining biology and technology were only successful in 3D printing “simple tissues without blood vessels,” the research team said.