In a world-first, a man in the US received a replacement heart valve made from a special biomedical polymer developed by CSIRO researchers. Biomedical polymers are special because they must seamlessly integrate into the complex systems of the human body. The polymer material and the design of this valve mimics a natural human valve. The polymer is robust enough to sustain the constant vigorous pulsing required of a healthy aortic valve. And it’s capable of lasting decades without calcification, risk of clotting or damage to red blood cells.