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1. 发明授权

US4425235A Blood collection device with phase partitioning means 失效
标题翻译：带相分离装置的采血装置
公开(公告)号：US4425235A
公开(公告)日：1984-01-10
申请号：US360706
申请日：1982-03-22
申请人： William D. Cornell , Joel Joslin
发明人： William D. Cornell , Joel Joslin
IPC分类号： B01D43/00 , B01L3/14 , G01N33/49 , B01D17/00 , B01D21/26
CPC分类号： B01L3/5021 , B01D43/00 , G01N33/491
摘要： A blood collection device for collecting and separating whole blood into its relatively low and high density phases includes a collection container, and a housing having an enlongate passageway in the housing. Gel-like material having a specific gravity intermediate the specific gravities of the separated high and low density phases is disposed in the passageway. A piston having a specific gravity greater than that of the gel-like material is disposed in the passageway and sized to allow gel-like material to flow past it at a low flow rate and to retard the movement of the piston during centrifugation of the device. Means for preventing the flow of the gel-like material from the housing and toward the interface of the phases until the piston has moved out of the passageway is provided.
摘要翻译：用于收集和分离全血到其相对低和高密度阶段的采血装置包括收集容器和在壳体中具有扩张通道的壳体。具有中间分离的高密度相和低密度相的比重的比重的凝胶状材料设置在通道中。具有大于凝胶状材料的比重的活塞设置在通道中并且尺寸设计成允许凝胶状材料以低流速流过其，并且在装置的离心期间延迟活塞的运动。提供了用于防止凝胶状材料从壳体流动并且朝向相的界面直到活塞已经从通道移出的装置。

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