公开(公告)号：US4088582A

公开(公告)日：1978-05-09

申请号：US649880

申请日：1976-01-16

申请人： Vabilisetti S. Murty ,  Thomas C. Schuler

发明人： Vabilisetti S. Murty ,  Thomas C. Schuler

IPC分类号： B01L3/14 ,  G01N33/49 ,  B01D21/26

CPC分类号： B01L3/50215 ,  G01N33/491

摘要： A blood collection device includes a tube for receiving a sample of whole blood for centrifugal separation into the lighter phase, plasma or serum, and the heavier cellular phase. The tube has a needle-pierceable stopper at the opposite end for maintaining a negative pressure in the tube. A blood phase partitioning device is disposed within the tube and includes upper and lower members with the upper member having a greater specific gravity greater than that of the lower member but together having a specific gravity between that of the lighter phase and that of the heavier phase. A sealant is disposed between the members and in contact with each member and has a specific gravity equal to the average of the two members. During centrifugation of the blood, the partitioning device automatically moves to the interface of the two phases, and the members move toward each other forcing the sealant radially outwardly from between the members and against the inner wall of the tube to provide a permanent partition between the two separated phases.

摘要翻译： 采血装置包括用于接收全血样品以便离心分离成更轻相，血浆或血清和较重细胞相的管。 该管在相对端具有可刺穿的塞子，用于维持管中的负压。 血液分配装置设置在管内并且包括上部构件和下部构件，其中上部构件的比重大于下部构件的比重，但是在比较重的相位和较重的相位之间具有比重 。 密封剂设置在构件之间并且与每个构件接触并且具有等于两个构件的平均值的比重。 在血液离心期间，分隔装置自动地移动到两相界面，并且构件相互朝向彼此移动，迫使密封剂从构件之间径向向外并且抵靠管的内壁，以提供永久分隔 两个分开的阶段。