Core Viewpoint - A team led by Professor Xu Tao from Tsinghua University in Shenzhen has successfully created a "mini heart" using a biological 3D printer, which can rhythmically beat like a real heart [1] Group 1: Technological Advancements - The 3D printed "mini heart" represents a significant advancement in bioprinting technology, showcasing the potential for creating functional human organs [1] - In the next three to five years, there is an expectation to achieve 3D printing of simpler organs such as the pancreas and bladder [1] Group 2: Future Applications - The technology may allow early-stage liver failure patients to utilize 3D printed "mini livers" for localized organ repair [1]