A system and method of separation of therapeutic components from blood. The system includes a dual member centrifuge and a disposable single use fluid transfer set. The set includes an elongated flexible separation chamber having an input port, a separated component output port and a residual fluid output...http://www.google.ca/patents/US5322620?utm_source=gb-gplus-sharePatent US5322620 - Centrifugation system having an interface detection surface