Systems and methods centrifugally separate whole blood into red blood cells, plasma, and a platelet concentrate. The systems and methods rotate a first rotating separation zone about a rotational axis, to separate whole blood into red blood cells and plasma constituent carrying platelets. Red blood cells...http://www.google.com.au/patents/US20030102272?utm_source=gb-gplus-sharePatent US20030102272 - Blood processing systems and methods
