An increased yield blood component collection system (10) which maximizes, to the greatest extent possible, the yield of blood components obtained during a continuous flow extracorporeal blood collection procedure in a manner which also assures the maximum permissible storage period for each of the components collected. The system (10) which embodies the features of the invention comprises first and second centrifugation containers (20, 22), each of which is suited for placement within the centrifugal separation chamber (14) of an extracorporeal blood separation device (12). The system (10) further includes first and second transfer containers (26, 28) in which some of the components separated within the centrifugal containers (20, 22) can be collected for storage. The system (10) also includes conduit means (34) for establishing a plurality of fluid paths which are closed from communication with the atmosphere and which integrally interconnect the parts of the system (10).
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