The instant invention relates to a method and the apparatus for collecting a hyperconcentrated platelet product. A fluid containing platelets and other particles flows into a fluid chamber at a flow rate. The flow rate of the fluid is selected to retain the majority of the platelets in the fluid chamber...http://www.google.com.tw/patents/US6022306?utm_source=gb-gplus-share專利 US6022306 - Method and apparatus for collecting hyperconcentrated platelets
