Apheresis apparatus and method

摘要: An apheresis apparatus and method is disclosed for increasing the purity yield of platelets separated from donated whole blood in a centrifuge. The centrifuge diluted by recirculating fluid, such as plasma or saline, at first flow rate, to mix with further withdrawn prior entering As collected, it recirculated through second rate improve separation between intermediate density components, i.e., white cells "buffy coat." then third are displaced out while rate.