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123 条记录 (耗时 0.022 秒)

    Differential conductivity hemodynamic monitor
    91.
    发明授权
    Differential conductivity hemodynamic monitor 失效
    差分电导率血液动力学监测仪

    公开(公告)号：US5644240A

    公开(公告)日：1997-07-01

    申请号：US486982

    申请日：1995-06-07

    申请人： James M. Brugger

    发明人： James M. Brugger

    IPC分类号： A61M1/16 ,  A61M1/36 ,  G01F1/704 ,  G01F1/708 ,  G01N27/02 ,  G01N33/487 ,  G01N27/08 ,  G01P5/08

    CPC分类号： A61M1/16 ,  A61M1/361 ,  A61M1/3612 ,  A61M1/3653 ,  A61M1/3658 ,  A61M1/3669 ,  G01F1/7046 ,  G01F1/708 ,  G01F1/7088

    摘要： A flow rate of a fluid flowing in a tube is quantitatively determined by altering the electrical conductivity of the fluid by injection of a bolus of saline. The electrical conductivity of the altered conductivity is measured over the time it takes the altered conductivity fluid to pass a conductivity measuring location. The measured conductivity is integrated over the time it take to pass the conductivity measuring location. The integral is interpreted to determine the flow rate.

    摘要翻译： 在管中流动的流体的流速通过注射大量盐水改变流体的电导率而定量地确定。 在改变的导电流体通过电导率测量位置的时间内测量改变的导电性的导电性。 测量的电导率在通过电导率测量位置所需的时间内积分。 积分被解释为确定流量。

    Hemodynamic monitor for detecting air bubbles
    92.
    发明授权
    Hemodynamic monitor for detecting air bubbles 失效
    用于检测气泡的血液动力学监测器

    公开(公告)号：US5631552A

    公开(公告)日：1997-05-20

    申请号：US472268

    申请日：1995-06-07

    申请人： Francis T. Ogawa ,  James M. Brugger

    发明人： Francis T. Ogawa ,  James M. Brugger

    IPC分类号： A61M1/16 ,  A61M1/36 ,  G01F1/704 ,  G01F1/708 ,  G01N27/02 ,  G01N33/487 ,  G01N27/06

    CPC分类号： G01F1/7088 ,  A61M1/16 ,  A61M1/361 ,  A61M1/3612 ,  A61M1/3653 ,  A61M1/3658 ,  A61M1/3669 ,  G01F1/7046 ,  G01F1/708

    摘要： The presence of air bubbles entrained in a liquid flowing through a tube is detected flowing the liquid through a conduit which comprises a conductivity cell with a continuous path configuration. An electrical current is induced in the liquid in the conductivity cell. The electrical current in the liquid in the conductivity cell is sensed and interpreted, a decrease in the electrical current being indicative of the presence of an air bubble in the liquid. The conductivity cell comprises an upstream connection, a downstream connection, and two branches connecting the upstream connection to the downstream connection with a continuous path configuration from the upstream connection to the downstream connection through one of the two branches and returning to the upstream connection through the other one of the two branches.

    摘要翻译： 检测到夹带在流过管的液体中的气泡的存在使液体流过包括具有连续路径构造的电导池的导管。 在电导池中的液体中产生电流。 感测和解释导电池中的液体中的电流，电流的减小表示液体中存在气泡。 电导率单元包括上游连接，下游连接以及将上游连接与下游连接相连接的两个分支，其具有从上游连接到通过两个分支之一的下游连接的连续路径配置，并返回到上游连接 另外两个分支之一。

    Altered fluid conductivity monitor
    93.
    发明授权
    Altered fluid conductivity monitor 失效
    改变流体电导率监测器

    公开(公告)号：US5570026A

    公开(公告)日：1996-10-29

    申请号：US455349

    申请日：1995-05-31

    申请人： George W. Buffaloe, IV ,  Francis T. Ogawa ,  James M. Brugger

    发明人： George W. Buffaloe, IV ,  Francis T. Ogawa ,  James M. Brugger

    IPC分类号： G01N27/06 ,  A61M1/14 ,  A61M1/16 ,  A61M1/36 ,  G01F1/704 ,  G01F1/708 ,  G01N27/02 ,  G01N33/487 ,  G01R27/02 ,  G01N27/08

    CPC分类号： G01F1/7088 ,  A61M1/16 ,  A61M1/361 ,  A61M1/3612 ,  A61M1/3653 ,  A61M1/3658 ,  A61M1/3669 ,  G01F1/7046 ,  G01F1/708

    摘要： A differential conductivity recirculation monitor quantitatively determines the degree of recirculation in a fistula by comparing the conductivity of blood entering the fistula to the conductivity of blood being withdrawn from the fistula. A discrete quantity of a high conductivity marker fluid is injected into the blood entering the fistula, altering the conductivity of the blood entering the fistula. The altered conductivity blood enters the fistula and, if recirculation is present, co-mingles with blood in the fistula, altering the conductivity of the blood in the fistula in proportion to the degree of recirculation. Blood withdrawn from the fistula has an altered conductivity related to the degree of recirculation. Quantitative values of the conductivity of the altered conductivity blood entering the fistula and the conductivity of the blood being withdrawn from the fistula are measured and a difference determined. The determined difference between the conductivities is used to determine a quantitative measurement of the degree of recirculation in the fistula.

    摘要翻译： 差分电导率再循环监测器通过比较进入瘘的血液的电导率与从瘘管抽取的血液的电导率来定量地确定瘘管中的再循环程度。 将离散量的高电导率标记液注入进入瘘管的血液中，改变进入瘘管的血液的电导率。 改变的电导率血液进入瘘管，如果存在再循环，则与瘘管中的血液共混，根据再循环程度改变瘘管中的血液的电导率。 从瘘管中取出的血液与再循环程度相关的导电性改变。 测量进入瘘的改变的导电性血液的导电性的定量值和从瘘管取出的血液的电导率，并确定差异。 电导率之间的确定差异用于确定瘘管再循环程度的定量测量。

    Method for detecting undesired dialysis recirculation
    95.
    发明授权
    Method for detecting undesired dialysis recirculation 失效
    检测不良透析再循环的方法

    公开(公告)号：US5312550A

    公开(公告)日：1994-05-17

    申请号：US873781

    申请日：1992-04-27

    申请人： Robert L. Hester

    发明人： Robert L. Hester

    IPC分类号： A61M1/36 ,  B01D61/32

    CPC分类号： A61M1/3653 ,  A61M1/3658 ,  A61M1/367

    摘要： In a dialysis system wherein blood is removed from a patient's vascular system and passed through a dialyzer system comprising an inlet arterial line, a dialyzer, and an outlet venous line, the blood being fed via the inlet arterial line to the dialyzer and returned to the patient via the outlet venous line, a material having a physical property differing from that of blood is injected at a point in the venous return line. The fluid in the dialysis system upstream from the injection point is monitored for the presence of the different physical property whereby direct recirculation from the venous return line to the arterial intake line is detected.

    摘要翻译： 在透析系统中，其中血液从患者的血管系统中移出并通过包括入口动脉线，透析器和出口静脉线的透析器系统，血液经由入口动脉线被供给到透析器并返回到 通过出口静脉线的患者，在静脉回流管路中的某一点注入具有与血液物理性质不同的物质。 监测从注射点上游的透析系统中的流体是否存在不同的物理特性，从而检测从静脉返回管线到动脉进入管线的直接再循环。

    APPARATUS AND METHOD FOR MEASURING RECIRCULATION
    97.
    发明申请
    APPARATUS AND METHOD FOR MEASURING RECIRCULATION 审中-公开

    公开(公告)号：US20180099081A1

    公开(公告)日：2018-04-12

    申请号：US15727114

    申请日：2017-10-06

    申请人： B. Braun avitum AG

    发明人： WALDEMAR JANIK ,  Silvie Krause

    IPC分类号： A61M1/36 ,  A61M1/14

    CPC分类号： A61M1/3658 ,  A61M1/14 ,  A61M1/3609 ,  A61M2205/3368 ,  A61M2205/36 ,  A61M2205/3673

    摘要： An apparatus for measuring recirculation using thermodilution during extracorporeal blood treatment including a temperature varying unit arranged to cyclically heat and/or cool blood in a venous tube segment of the blood tube system for a quasi-continuous recirculation measurement; and a detecting device configured to measure a variation of a physical parameter resulting from the heating and/or cooling. The detecting device is arranged to detect, in a case free from recirculation, a first physical parameter and to detect, in a case afflicted with recirculation, a physical parameter varied by the cooling and/or heating of the blood by the temperature varying unit as a second physical parameter in the blood tube system. A method for measuring recirculation carries out appropriate steps.

    Dialysis catheter
    98.
    发明授权
    Dialysis catheter 有权
    透析导管

    公开(公告)号：US09415187B2

    公开(公告)日：2016-08-16

    申请号：US13310014

    申请日：2011-12-02

    申请人： Charles W. Agnew

    发明人： Charles W. Agnew

    IPC分类号： A61M25/00 ,  A61M25/04 ,  A61M1/36

    CPC分类号： A61M25/0075 ,  A61M1/3653 ,  A61M1/3658 ,  A61M1/3659 ,  A61M1/3661 ,  A61M25/04 ,  A61M2025/0025 ,  A61M2025/0031 ,  A61M2025/0035 ,  A61M2025/0039 ,  A61M2025/0079

    摘要： A catheter assembly used for extracorporeal treatment, such as dialysis, of blood or other body fluid, includes an outer and inner catheter in a coaxial relationship. A fluid path is provided by a passageway defined between the catheters and a distal end of the outer catheter, and another fluid path is provided through a lumen and a distal end of the inner catheter. A sealing member is coupled to one of the catheters. The member in a first position is configured to permit the distal ends of the catheters to transport fluid, while in a second position the member is configured to inhibit at least one of the distal ends from transporting fluid. The sealing member may include a flared portion for enhance sealing. The sealing member may also have a portion extending outward from the catheters to position the distal ends away from vessel contact.

    摘要翻译： 用于体外治疗（例如透析，血液或其他体液）的导管组件包括同轴关系的外导管和内导管。 流体通道由限定在导管和外导管的远端之间的通道提供，并且另一流体路径通过内导管和内导管的远端提供。 密封构件联接到导管之一。 第一位置的构件构造成允许导管的远端输送流体，而在第二位置，构件被构造成阻止远端中的至少一个输送流体。 密封构件可以包括用于增强密封的扩口部分。 密封构件还可以具有从导管向外延伸的部分，以将远端远离血管接触。

    Device and method for detecting the recirculation during an extracorporeal blood treatment
    99.
    发明授权
    Device and method for detecting the recirculation during an extracorporeal blood treatment 有权
    用于在体外血液处理期间检测再循环的装置和方法

    公开(公告)号：US09248226B2

    公开(公告)日：2016-02-02

    申请号：US14032922

    申请日：2013-09-20

    申请人： Fresenius Medical Care Deutschland GmbH

    发明人： Thomas Nuernberger

    IPC分类号： C02F1/00 ,  A61M1/36 ,  A61M1/16 ,  A61M1/34

    CPC分类号： A61M1/3403 ,  A61M1/1656 ,  A61M1/1672 ,  A61M1/342 ,  A61M1/3431 ,  A61M1/3434 ,  A61M1/3437 ,  A61M1/3639 ,  A61M1/3653 ,  A61M1/3656 ,  A61M1/3658 ,  A61M1/3663 ,  A61M2205/3331 ,  A61M2205/3334 ,  A61M2205/50 ,  B01D61/28 ,  B01D61/30

    摘要： A device and method for detecting recirculation for an extracorporeal blood treatment apparatus and an apparatus with a device for detecting recirculation are based on targeted haemodilution by administration of a substituate bolus, causing a pressure change in venous and arterial branches of the extracorporeal circuit due to a viscosity change of flowing fluid. Recirculation is detected based on detection of the pressure change. The device includes a control unit cooperating with a device for conveying blood and a device for supplying substituate. The control unit provides an operating mode for detecting recirculation, in which blood flow rate is reduced during administration of a substituate bolus. With simultaneous substituate bolus administration and reduction of blood flow rate, the composition of fluid flow is optimized for detection of recirculation, so that fairly large pressure changes result in venous and arterial branches, thereby improving sensitivity and reliability of the measurement method.

    摘要翻译： 用于检测体外血液处理装置的再循环的装置和方法以及具有用于检测再循环的装置的装置基于通过施用取代弹丸的目标血液稀释，导致体外循环的静脉和动脉分支中的压力变化，由于 流动液体的粘度变化。 基于压力变化的检测来检测循环。 该装置包括与用于输送血液的装置配合的控制单元和用于提供取代物的装置。 控制单元提供用于检测再循环的操作模式，其中在给药代谢团期间血流速度降低。 通过同时取代推注给药和降低血液流速，优化流体流动的组成，用于检测再循环，从而使相当大的压力变化导致静脉和动脉分支，从而提高测量方法的灵敏度和可靠性。