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    • 2. 发明申请
    • MALFUNCTION DETECTION WITH DERIVATIVE CALCULATION
    • 具有衍生计算的故障检测
    • WO2007035564A2
    • 2007-03-29
    • PCT/US2006/036165
    • 2006-09-18
    • LIFESCAN, INC.KRULEVITCH, PeterBOHM, SebastianZHAO, MinggiANEX, Deon
    • KRULEVITCH, PeterBOHM, SebastianZHAO, MinggiANEX, Deon
    • A61M1/00
    • A61M5/14244A61M5/14248A61M5/1452A61M5/16831A61M5/172A61M2005/14513A61M2205/3317A61M2205/3389
    • Systems and methods of detecting occlusions and fluid-loss conditions (e.g., disconnects and/or leakages) in an infusion pump are discussed. For example, electrokinetic infusion pumps may develop an occlusion in the fluid flow path, which can disrupt control of fluid dispersed from the pump. As well, an infusion set disconnect can also result in a fluid-loss that can be disruptive. Such disruptions can be troublesome to systems that control the infusion pump, such as closed loop controllers. Accordingly, systems and methods described herein can be used to detect such occlusions and fluid-loss conditions during infusion pump operation. For example, a position sensor can be used to monitor fluid flow from the infusion pump, with the measurement being compared with an expected value to detect an occlusion or fluid-loss condition. Other algorithms for utilizing the position sensor are also described.
    • 讨论了检测输液泵中的闭塞和流体损失状况(例如断开和/或泄漏)的系统和方法。 例如,电动输液泵可能在流体流动路径中产生闭塞,这可能破坏从泵分散的流体的控制。 同样,输液器断开也可能导致流体损失,这可能是破坏性的。 对于控制输液泵的系统,例如闭环控制器,这种中断可能是麻烦的。 因此,本文所述的系统和方法可用于在输注泵操作期间检测这种闭塞和流体损失状况。 例如,位置传感器可用于监测来自输注泵的流体流动,其中测量值与预期值进行比较以检测堵塞或流体损失状况。 还描述了用于利用位置传感器的其它算法。
    • 4. 发明申请
    • ELECTROKINETIC INFUSION PUMP SYSTEM
    • 电动注入泵系统
    • WO2007035666A2
    • 2007-03-29
    • PCT/US2006/036340
    • 2006-09-18
    • LIFESCAN, INC.KRULEVITCH, PeterBENETT, WilliamROBERTS, Neil, E.BOHM, SebastianSIEH, Zara
    • KRULEVITCH, PeterBENETT, WilliamROBERTS, Neil, E.BOHM, SebastianSIEH, Zara
    • A61M1/00
    • A61M5/14244A61M5/14248A61M5/1452A61M5/16831A61M5/172A61M2005/14513A61M2205/3317A61M2205/3389
    • Various methods and devices are provided for delivering an infusion liquid using an electrokinetic infusion pump. The electrokinetic infusion pump can generally include an infusion housing having an infusion reservoir. The infusion reservoir has an infusion outlet and is capable of containing an infusion liquid. A plunger is movably coupled to the infusion housing and is adapted to be manually displaced relative to the infusion housing to load the infusion reservoir with infusion liquid. A movable partition can be disposed within the infusion housing and has a first surface in communication with an electrokinetic solution and a second surface, isolated from the first surface, in communication with the infusion reservoir. The electrokinetic infusion pump can further include an electrokinetic engine integrated within the plunger and adapted to selectively deliver electric potential across an electrokinetic porous media to cause the electrokinetic solution within the electrokinetic engine to displace the movable partition to effect delivery of at least a portion of the infusion liquid through the infusion outlet.
    • 提供了使用电动输液泵输送输液的各种方法和装置。 电动输液泵通常可以包括具有输液容器的输液壳体。 输液容器具有输液出口并且能够容纳输注液体。 柱塞可移动地联接到输液壳体并适于相对于输液壳体手动移位以将输液储液器装载输液。 可移动分隔件可以设置在输液壳体内并且具有与电动溶液连通的第一表面和与输液储存器连通的与第一表面隔开的第二表面。 电动输液泵可以进一步包括集成在柱塞内的电动发动机,并且适于在电动多孔介质上选择性地递送电势,以使电动力发动机内的电动力溶液移位可动分隔物以实现至少一部分 输液通过输液出口。