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    Flow matching method and system using two transducers
    11.
    发明授权
    Flow matching method and system using two transducers 失效
    流量匹配方法和系统使用两个换能器

    公开(公告)号：US06752928B2

    公开(公告)日：2004-06-22

    申请号：US10045776

    申请日：2002-01-10

    Applicant: Michael C. Pfeil ,  Gary C. Fulks

    Inventor： Michael C. Pfeil ,  Gary C. Fulks

    IPC: B01D6132

    CPC classification number: A61M1/1656 ,  A61M1/1647 ,  A61M1/3441 ,  Y10S210/929 ,  Y10T137/0368

    Abstract: A property of unconnected first and second fluid flows is matched, such as, but not limited to, matching the flow rate of the replacement water stream with the waste water stream in kidney dialysis. The first and second flow paths are interconnected so substantially the same flow from the first flow source encounters a first flow transducer which is in the first flow path and a second flow transducer which is in the second flow path. Transducer readings are taken for various identical values of the property of the first fluid flow. Then the first and second flow paths are disconnected, and the property, such as but not limited to flow rate, of one of the fluid flows in one of the flow paths is controlled using transducer readings and the previous interconnected-path transducer readings to match the property in the two flows. In one example, the transducers are uncalibrated transducers.

    Abstract translation: 匹配不连接的第一和第二流体流的性质，例如但不限于使肾脏透析中的替代水流与废水流的流速相匹配。 第一和第二流动路径相互连接，使得基本相同的来自第一流动源的流体遇到位于第一流动路径中的第一流量变换器和位于第二流动路径中的第二流量变换器。 对于第一流体流的性质的各种相同的值，采集传感器读数。 然后断开第一和第二流动路径，并且使用换能器读数和先前的互连路径换能器读数来控制其中一个流动路径中的一个流体流的特性，例如但不限于流量，以匹配 财产在两个流。 在一个示例中，换能器是未校准的换能器。

    Flow matching method and system using two transducers
    12.
    发明申请
    Flow matching method and system using two transducers 失效
    流量匹配方法和系统使用两个换能器

    公开(公告)号：US20030130608A1

    公开(公告)日：2003-07-10

    申请号：US10045776

    申请日：2002-01-10

    Inventor： Michael C. Pfeil ,  Gary C. Fulks

    IPC: A61M037/00

    CPC classification number: A61M1/1656 ,  A61M1/1647 ,  A61M1/3441 ,  Y10S210/929 ,  Y10T137/0368

    Abstract: A property of unconnected first and second fluid flows is matched, such as, but not limited to, matching the flow rate of the replacement water stream with the waste water stream in kidney dialysis. The first and second flow paths are interconnected so substantially the same flow from the first flow source encounters a first flow transducer which is in the first flow path and a second flow transducer which is in the second flow path. Transducer readings are taken for various identical values of the property of the first fluid flow. Then the first and second flow paths are disconnected, and the property, such as but not limited to flow rate, of one of the fluid flows in one of the flow paths is controlled using transducer readings and the previous interconnected-path transducer readings to match the property in the two flows. In one example, the transducers are uncalibrated transducers.

    Abstract translation: 匹配不连接的第一和第二流体流的性质，例如但不限于使肾脏透析中的替代水流与废水流的流速相匹配。 第一和第二流动路径相互连接，使得基本相同的来自第一流动源的流体遇到位于第一流动路径中的第一流量变换器和位于第二流动路径中的第二流量变换器。 对于第一流体流的性质的各种相同的值，采集传感器读数。 然后断开第一和第二流动路径，并且使用换能器读数和先前的互连路径换能器读数来控制其中一个流动路径中的一个流体流的特性，例如但不限于流量，以匹配 财产在两个流。 在一个示例中，换能器是未校准的换能器。

    Methods for priming a blood compartment of a hemodialyzer
    13.
    发明授权
    Methods for priming a blood compartment of a hemodialyzer 失效
    启动血液透析器血液隔室的方法

    公开(公告)号：US06331252B1

    公开(公告)日：2001-12-18

    申请号：US09126761

    申请日：1998-07-31

    Applicant: Waleed Mutasem El Sayyid ,  Cameron Scott Casterline

    Inventor： Waleed Mutasem El Sayyid ,  Cameron Scott Casterline

    IPC: B01D6100

    CPC classification number: A61M1/16 ,  A61M1/1601 ,  A61M1/1647 ,  A61M1/165 ,  A61M1/3403 ,  A61M1/3427 ,  A61M1/3643 ,  A61M1/3644 ,  A61M1/365 ,  A61M2205/50 ,  Y10S210/929

    Abstract: A method for priming a hemodialyzer is disclosed. Hemodialyzer comprises a dialysate compartment, a blood compartment, and a dialysis membrane separating the dialysate and blood compartments. The method comprises the steps of delivering a liquid to a dialysate inlet of the dialysate compartment at a first volumetric delivery rate, passing the liquid through the dialysate compartment from the dialysate inlet to a dialysate outlet of the hemodialyzer and delivering the liquid from the dialysate outlet at a second volumetric delivery rate that is less than the first volumetric delivery rate so as to cause a net flow of the liquid from the dialysate compartment to the blood compartment through the dialysis membrane.

    Abstract translation: 公开了一种用于启动血液透析器的方法。 血液透析器包括透析液隔室，血液隔室和分离透析液和血液隔室的透析膜。 该方法包括以第一体积输送速率将液体输送到透析液隔室的透析液入口的步骤，使液体从透析液入口透过透析液入口至血液透析器的透析液出口，并从透析液出口输送液体 以小于第一体积输送速率的第二体积输送速率，以便通过透析膜引起液体从透析液室到血液室的净流量。

    Method and apparatus for measuring the flow differential in a dialysis machine, and method for calibrating the apparatus
    14.
    发明授权
    Method and apparatus for measuring the flow differential in a dialysis machine, and method for calibrating the apparatus 失效
    用于测量透析机中的流量差的方法和装置以及用于校准该装置的方法

    公开(公告)号：US5861555A

    公开(公告)日：1999-01-19

    申请号：US964732

    申请日：1997-11-05

    Applicant: Sture Hobro ,  Erik Linderup ,  Leif Mattisson

    Inventor： Sture Hobro ,  Erik Linderup ,  Leif Mattisson

    IPC: A61M1/14 ,  A61M1/16 ,  G01F25/00 ,  G01F1/68

    CPC classification number: A61M1/16 ,  A61M1/1647 ,  A61M1/1662 ,  A61M1/1664 ,  A61M1/1692

    Abstract: Methods for measuring the flow differential through a dialysis machine are disclosed in which the dialysis machine includes a heat exchanger having a primary side and a secondary side for exchanging heat therebetween. The method includes measuring the temperature differences across the primary and secondary sides of the heat exchanger and calculating the flow differential based upon these measured temperature differences. Apparatus for measuring such a flow differential is also disclosed, as are methods for calibrating that apparatus.

    Abstract translation: 公开了通过透析机测量流量差的方法，其中透析机包括具有初级侧和次级侧之间用于在其间进行热交换的热交换器。 该方法包括测量热交换器的一次侧和二次侧的温差，并基于这些测量的温度差来计算流量差。 还公开了用于测量这种流量差的装置，校准该装置的方法也是如此。

    System and method for monitoring a flow of dialysis fluid in a dialysis machine
    15.
    发明授权
    System and method for monitoring a flow of dialysis fluid in a dialysis machine 失效
    用于监测透析机中透析液流量的系统和方法

    公开(公告)号：US5792367A

    公开(公告)日：1998-08-11

    申请号：US693263

    申请日：1996-08-16

    Applicant: Leif Mattisson ,  Gunilla Wejfeldt

    Inventor： Leif Mattisson ,  Gunilla Wejfeldt

    IPC: G01F1/00 ,  A61M1/14 ,  A61M1/16 ,  B01D61/32 ,  G01F1/36 ,  G01F25/00 ,  G05D7/06 ,  B01D61/30 ,  B01D65/10

    CPC classification number: G05D7/0682 ,  A61M1/16 ,  A61M1/1647 ,  G01F1/363 ,  G01F25/003 ,  Y10S210/929

    Abstract: Apparatus for monitoring flow of a dialysis fluid through a dialyzer is disclosed including a computer for calculating the flow rate of the dialysis fluid into and out of the dialyzer based on the formula P-P.sub.O =k*Q.sup.n in which P is the pressure in the dialysis fluid between a throttle and a pump either upstream or downstream of the dialyzer, P.sub.O is the pressure in the dialysis fluid on the opposite side of the throttles from the pump, k is a characteristic coefficient for the throttle, Q is the flow of the dialysis fluid through the throttle, and N is a characteristic exponent for the throttle, and the apparatus includes microprocessor for calculating the values of k and P.sub.O prior to use and for calculating the value of P.sub.O during use of the dialyzer. Methods for carrying out such monitoring are also disclosed.

    Abstract translation: PCT No.PCT / SE95 / 00166 Sec。 371日期：1996年8月16日 102（e）日期1996年8月16日PCT提交1995年2月17日PCT公布。 第WO95 / 22743号公报 日期1995年8月24日公开了一种通过透析器监测透析液流量的装置，其包括计算机，用于根据公式P-PO = k * Qn计算透析液进出透析器的流量，其中P 是在透析器上游或下游的节流阀和泵之间的透析液中的压力，PO是来自泵的节流阀相对侧的透析液体中的压力，k是节流阀的特征系数，Q 是通过节气门的透析流体的流动，N是节气门的特征指数，并且该装置包括用于在使用之前计算k和PO的值的微处理器，以及在使用透析器期间计算PO的值。 还公开了进行这种监视的方法。

    BLOOD PURIFICATION APPARATUS
    17.
    发明公开
    BLOOD PURIFICATION APPARATUS 审中-公开

    公开(公告)号：US20230270923A1

    公开(公告)日：2023-08-31

    申请号：US18014620

    申请日：2021-06-07

    Applicant: Nikkiso Co., Ltd.

    Inventor： Hikaru Chiaki ,  Yuya Menjoh ,  Kazuya Tsuji ,  Kunihiko Akita

    IPC: A61M1/16

    CPC classification number: A61M1/1647 ,  A61M1/1605 ,  A61M1/165

    Abstract: A blood circuit and a dialysate circuit bidirectionally circulate a fluid through a blood purification membrane of a blood purifier, and include a first flow route that causes a dialysate to flow from the dialysate circuit into the blood circuit through a connection flow route connecting the dialysate circuit to the blood circuit while bypassing the blood purifier, and a second flow route that causes the dialysate to flow from the dialysate circuit into the blood circuit through the blood purification membrane. The controller performs control such that blood in the blood circuit is returned to the body by feeding the dialysate to one of these flow routes, determine if a flow amount of the dialysate reaches a predetermined flow amount, and control such that the blood in the blood circuit is returned to the body by feeding the dialysate to the other one of these flow routes.

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