An improved method for separating whole blood into components and collecting a desired blood component. The method allows a desired blood component to be subjected to centrifugal forces within a separator for prolonged periods of time, yielding a cleaner cut and higher yield of the desired blood component....http://www.google.com/patents/US20040127841?utm_source=gb-gplus-sharePatent US20040127841 - Method for collecting a desired blood component and performing a photopheresis treatment
