An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component comprises a centrifuge, with a rotor having a rotation axis comprising at least two separation cells, each for containing a separation bag containing a volume of composite...http://www.google.com.au/patents/US7674221?utm_source=gb-gplus-sharePatent US7674221 - Apparatus for separating discrete volumes of a composite liquid with balancing elements
