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16 条记录 (耗时 0.025 秒)

    Differential conductivity recirculation monitor
    2.
    发明授权
    Differential conductivity recirculation monitor 失效
    差分电导率再循环监测仪

    公开(公告)号：US5510716A

    公开(公告)日：1996-04-23

    申请号：US332647

    申请日：1994-11-01

    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 ,  B01D61/32

    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in a fistula by comparing the conductivity of blood entering the fistula to the conductivity of blood being withdrawn from the fistula.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 ion 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 Blood withdrawn from the fistula has an altered conductivity related to the degree of recirculation.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of the conductivity of the altered conductivity blood entering the fistula and the conductivity of the blood being withdrawn from the fistula are measured and a difference determined.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，并且如果存在再循环，则与瘘管中的血液共混，改变与再循环程度成比例的血液离子瘘的电导率。 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。

    Altered fluid conductivity monitor
    5.
    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。

    Hemodynamic monitor for detecting air bubbles
    7.
    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。

    Remote conductivity sensor having transformer coupling in fluid flow path
    8.
    发明授权
    Remote conductivity sensor having transformer coupling in fluid flow path 失效
    远程电导率传感器在流体流动路径中具有变压器耦合

    公开(公告)号：US4740755A

    公开(公告)日：1988-04-26

    申请号：US869132

    申请日：1986-05-30

    申请人： Francis T. Ogawa

    发明人： Francis T. Ogawa

    IPC分类号： G01N27/02 ,  G01N27/07

    CPC分类号： G01N27/023

    摘要： A cell for remotely sensing conductivity of a fluid passing through it, the cell having an inlet and an outlet and two fluid paths between the two, thereby defining a fluid loop, an excitation transformer comprising a first toroidal core having a hole through it and wire turns around it, the core encompassing a portion of the fluid loop therein, and a sensing transformer comprising a second toroidal core having a hole through it and wire turns around it, the core encompassing a portion of the fluid loop, the cores being coplanar to thereby reduce leakage between the transformers.

    摘要翻译： 用于远程感测通过其的流体的电导率的电池，所述电池具有入口和出口以及两者之间的两个流体路径，从而限定流体回路;激励变压器，包括具有通孔的第一环形铁芯和线 围绕其旋转，芯部包括其中的一部分流体回路，以及感测变压器，其包括具有穿过其的孔的第二环形芯，并且线绕其旋转，所述芯包围流体回路的一部分，所述芯共面于 从而减少变压器之间的泄漏。

    Photographic flash control circuitry having selectively operable internal sensor
    9.
    发明授权
    Photographic flash control circuitry having selectively operable internal sensor 失效
    具有选择性可操作的内部传感器的照相闪光控制电路

    公开(公告)号：US4333718A

    公开(公告)日：1982-06-08

    申请号：US112605

    申请日：1980-01-16

    申请人： James R. Adams, Jr. ,  Francis T. Ogawa

    发明人： James R. Adams, Jr. ,  Francis T. Ogawa

    IPC分类号： G03B15/05

    CPC分类号： G03B15/05 ,  G03B2215/05

    摘要： An external light integrating circuitry connectable over two-wires to a flash control circuitry, for causing automatic disabling of an internal light integrating circuitry connected within the control circuitry. The external integrating circuitry receives power over the two wires and transmits light integrating information back to flash termination circuitry within the control circuitry. Camera shutter contacts are connectable with the external integrating circuitry for transmitting a flash initiating signal via the two wires for initiating the photographic flash.

    摘要翻译： 外部光集成电路可通过两线连接到闪存控制电路，用于使得连接在控制电路内的内部光积分电路自动禁用。 外部积分电路通过两条电线接收电力，并将光集成信息发送回控制电路内的闪光终端电路。 相机快门触点可与外部积分电路连接，用于通过两根线发送闪光启动信号以启动照相闪光。