SYSTEMS AND METHODS FOR SEPARATING ERYTHROCYTES
    1.
    发明申请
    SYSTEMS AND METHODS FOR SEPARATING ERYTHROCYTES 审中-公开
    用于分离红细胞的系统和方法

    公开(公告)号:WO1997005938A1

    公开(公告)日:1997-02-20

    申请号:PCT/US1996007717

    申请日:1996-05-22

    Abstract: Blood separation systems and methods utilize a membrane separation device (52) comprising a gap (60) between a microporous membrane (64) and a surface (56) facing the microporous membrane (64), one of the microporous membranes (64) and the surface (56) being rotatable relative to the other to cause separation of whole blood in the gap (60) into plasma and concentrated red blood cells. The systems and methods include an inlet pump element (20) and a drive element (46) coupled to the membrane separation device (52) and the steps of commanding the inlet pump element (20) and the drive element (46) as a function of the known beginning hematocrit value to obtain concentrated red blood cells having a high end hematocrit value that remains substantially constant despite variances in the known beginning hematocrit value.

    Abstract translation: 血液分离系统和方法利用膜分离装置(52),其包括在微多孔膜(64)和面向微孔膜(64)的表面(56)之间的间隙(60),微孔膜(64)和 表面(56)可相对于另一个旋转,以使间隙(60)中的全血分离成血浆和浓缩红细胞。 这些系统和方法包括入口泵元件(20)和联接到膜分离装置(52)的驱动元件(46),以及将入口泵元件(20)和驱动元件(46)命令为功能的步骤 的已知开始血细胞比容值以获得具有高端血细胞比容值的浓缩红细胞,其尽管在已知的开始血细胞比容值中存在差异但仍保持基本恒定。

    FLUID FLOW CONTROL APPARATUS
    4.
    发明申请
    FLUID FLOW CONTROL APPARATUS 审中-公开
    流体流量控制装置

    公开(公告)号:WO1990006781A1

    公开(公告)日:1990-06-28

    申请号:PCT/GB1989001486

    申请日:1989-12-13

    Inventor: BIO-FLO LIMITED

    Abstract: A fluid flow control apparatus for use in separation and filtration is described which has a removable sterilisable/disposable element (27) which is engageable with a fixed portion (26). When engaged the flow of fluid around a fluid circuit is controlled to optimise separation. The removable element (27) may be combined with a filter unit (16) to form a unitary disposable cassette (90). Sensors (38, 40; 165, 167) can be incorporated in the apparatus for measuring fluid parameters such as pressure, viscosity and pH. Pressure sensors (165, 167; 226, 228) disposed at the filter inlet and outlet, are used to control the transmembrane pressure (TMP) to optimise filtration or separation and in one application this is used in controlling donor plasma separation.

    Abstract translation: 描述了用于分离和过滤的流体流动控制装置,其具有可移除的可灭菌/一次性元件(27),其可与固定部分(26)接合。 当接合流体回路周围的流体流动被控制以优化分离。 可移除元件(27)可以与过滤器单元(16)组合以形成整体的一次性盒(90)。 传感器(38,40; 165,167)可以结合在用于测量诸如压力,粘度和pH的流体参数的装置中。 设置在过滤器入口和出口处的压力传感器(165,167,226,228)用于控制跨膜压力(TMP)以优化过滤或分离,并且在一个应用中,其用于控制​​供体血浆分离。

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