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47 条记录 (耗时 0.049 秒)

    System for regulating fluid pump pressures
    45.
    发明授权
    System for regulating fluid pump pressures 有权
    用于调节流体泵压力的系统

    公开(公告)号：US06808369B2

    公开(公告)日：2004-10-26

    申请号：US10320178

    申请日：2002-12-16

    申请人： Larry Gray ,  Robert Bryant

    发明人： Larry Gray ,  Robert Bryant

    IPC分类号： F04B4900

    CPC分类号： G05D7/0635 ,  A61M1/282 ,  A61M5/16809 ,  A61M2205/3331 ,  F04B43/043 ,  F04B43/06 ,  G05D16/2073 ,  Y10T137/0318

    摘要： A method is provided for regulating fluid pump pressures by detecting an elevation differential between a fluid flow control device and the distal end of a fluid line in communication with the fluid flow control device. A fluid flow control device, for instance a peritoneal dialysis device, is at a first height, a distal end of a fluid line is at a second height, and a valved outlet, when open, affords communication between the fluid flow control device and the distal end of the fluid line. The elevation differential is correlatable with a pressure measurable during a calibration procedure provided as a part of the methodology.

    摘要翻译： 提供了一种通过检测流体流量控制装置和与流体流动控制装置连通的流体管线的远端之间的高差来调节流体泵压力的方法。 流体流量控制装置（例如腹膜透析装置）处于第一高度，流体管线的远端处于第二高度，并且阀门出口在打开时提供流体流动控制装置和流体流动控制装置之间的连通 流体管线的远端。 高程差与在作为方法的一部分提供的校准过程中可测量的压力相关。

    Apparatus and method for detection of a leak in a membrane of a fluid flow control system
    47.
    发明授权
    Apparatus and method for detection of a leak in a membrane of a fluid flow control system 有权
    用于检测流体流动控制系统的膜中的泄漏的装置和方法

    公开(公告)号：US06223130B1

    公开(公告)日：2001-04-24

    申请号：US09193337

    申请日：1998-11-16

    申请人： Larry Gray ,  Robert Bryant ,  Geoffrey Spencer

    发明人： Larry Gray ,  Robert Bryant ,  Geoffrey Spencer

    IPC分类号： G01M304

    CPC分类号： F04B51/00 ,  F04B43/009

    摘要： An apparatus, method, and computer program product for detection of fluid leakage through a membrane in a fluid flow control system. The fluid flow control system has a first chamber and a second chamber. A membrane is disposed between the first chamber and the second chamber. The second chamber has a connection to a pressure tank, the pressure tank has a fluid with a pressure, and the connection defines a fluid path. The method indudes in a first step, blocking the fluid path. The pressure of the fluid in the pressure tank is then adjusted. The pressure is measured in the pressure tank which creates a pressure measurement at each of a first set of multiple timed intervals while the fluid path is blocked and after the pressure is adjusted. A blocked pressure rate is calculated based on the pressure measurements in the pressure tank at the first set of multiple timed intervals. Next, the fluid path is unblocked. The pressure is measured within the pressure tank creating a pressure measurement at each of a second set of multiple timed intervals after the fluid path is unblocked. Then, an unblocked pressure rate is calculated based on the pressure measurements in the pressure tank at the second set of multiple timed intervals. Finally a leakage rate is calculated based on the blocked pressure rate and the unblocked pressure rate. An alarm is caused when the leakage rate becomes greater than a predetermined threshold value.

    摘要翻译： 一种用于检测通过流体流动控制系统中的膜的流体泄漏的装置，方法和计算机程序产品。 流体流动控制系统具有第一室和第二室。 膜设置在第一室和第二室之间。 第二室具有与压力罐的连接，压力罐具有压力的流体，并且连接限定了流体路径。 该方法包括第一步骤，阻止流体路径。 然后调节压力罐中的流体的压力。 在压力罐中测量压力，其在流体路径被阻塞并且在压力被调节之后在第一组多个定时间隔中的每一个处产生压力测量。 基于在第一组多个定时间隔的压力罐中的压力测量值来计算阻塞压力率。 接下来，解除流体路径。 在压力罐内测量压力，在流体路径解除阻塞之后，在第二组多个定时间隔中的每一个处产生压力测量。 然后，基于在第二组多个定时间隔的压力罐中的压力测量计算未阻塞的压力比。 最后，基于堵塞的压力率和未阻塞的压力速率来计算泄漏率。 当泄漏率变得大于预定阈值时，引起警报。