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公开(公告)号：US4879040A
公开(公告)日：1989-11-07
申请号：US291413
申请日：1988-12-22
CPC分类号： B01D61/22 , A61M1/262 , A61M1/34 , B01D63/16 , B01D2313/243 , B01D2313/90 , B01D2315/02
摘要： An adaptive filter concentrate flow control system and method includes a filter system, a pumping system driving feed fluid, concentrate and filtrate flowing through the filter system and a flow control system controlling the pumping system to maintain optimum filtrate flow rates along a control curve in a transmembrane pressure--feed fluid rate--filtrate flow rate three dimensional space. Actual sensed operating point data is used to locate the control curve so as to assure an optimized filtrate flow rate at which reversible blocking of the membrane has begun to occur without irreversible plugging. The system is advantageously employed to control and maximize the flow of plasma in a plasmapheresis system.
摘要翻译： 适应性过滤浓缩物流量控制系统和方法包括过滤系统，驱动进料流体的泵送系统，流过过滤系统的浓缩物和滤液以及控制泵送系统的流量控制系统，以沿着控制曲线保持最佳滤液流速 跨膜压力进料流速 - 滤液流量三维空间。 使用实际感测的工作点数据来定位控制曲线，以确保已经开始发生膜的可逆阻挡而没有不可逆堵塞的最佳滤液流速。 该系统有利地用于控制和最大化血浆置换系统中的血浆的流动。
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公开(公告)号：US5200090A
公开(公告)日：1993-04-06
申请号：US769335
申请日：1991-10-01
申请人： Michael G. Ford , Paul R. Prince
发明人： Michael G. Ford , Paul R. Prince
CPC分类号： A61M1/3441 , A61M1/3451 , A61M5/16809 , G01G17/04 , A61M2205/3393 , A61M5/16845 , Y10S210/929
摘要： A system is provided for weighing and monitoring flow from multiple fluid sources into a flow system wherein incoming fluid is received in a weighing bag attached to a control system for monitoring the amount of fluid passed through the weighing bag and for preventing admission of air into the flow system. An alarm attached to the weighing bag warns when fluid in the weighing bag is approaching empty, so that the fluid in the weighing bag can be replenished from the fluid source before the weighing bag runs dry. If fluid in the weighing bag is not replenished, the system automatically shuts down.The fluid pump can be absolutely calibrated using the controlled admission of known amounts of fluid into the weighing bag so that the amount of fluid introduced into the flow system through the weighing bag can be calculated automatically.
摘要翻译： 提供了一种用于称重和监测从多个流体源流入流动系统的系统，其中进入的流体被接收在附接到控制系统的称重袋中，用于监测通过称重袋的流体的量并防止空气进入 流量系统 称重袋附近的报警器警告当称重袋中的液体接近空时，使得称重袋内的液体可以在称重袋运行干燥之前从流体源中补充。 如果称重袋中的液体未补充，系统将自动关闭。 流体泵可以使用已知量的流体进入称重袋进行绝对校准，从而可以自动计算通过称重袋引入流量系统的流量。
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公开(公告)号：US4954128A
公开(公告)日：1990-09-04
申请号：US235056
申请日：1988-08-23
申请人： Michael G. Ford
发明人： Michael G. Ford
摘要： The system includes a plasmapheresis instrument and a harness set applied to the instrument. The harness set has a single venepuncture needle and is configured, when applied to the instrument, to pump blood from a donor through a separator for collection of its constituent parts in a reservoir and a collection container, respectively. During an infusion cycle, which alternates with the collection cycle, the blood constituent from the reservoir and a replacement fluid are mixed externally of the reservoir and pumped to the donor.
摘要翻译： 该系统包括血浆置换仪和应用于仪器的线束组。 线束组具有单个静脉穿刺针，并且当应用于仪器时被配置为分别从供体通过分离器泵送血液，以将其组成部分收集在储存器和收集容器中。 在与收集周期交替的输注循环期间，来自储存器的血液成分和替换流体在储存器的外部混合并泵送到供体。
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