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    Needle assemblies with anti-backflow features
    31.
    发明公开
    Needle assemblies with anti-backflow features 失效
    具有防反冲特征的针组件

    公开(公告)号：EP0042088A3

    公开(公告)日：1981-12-30

    申请号：EP81104106

    申请日：1981-05-28

    Applicant: Becton, Dickinson and Company

    Inventor： Megahed, Shenoda S.

    IPC: A61B05/14

    CPC classification number: A61M5/32 ,  A61B5/15003 ,  A61B5/150221 ,  A61B5/150259 ,  A61B5/150389 ,  A61B5/150488 ,  A61B5/150519 ,  A61B5/150732 ,  A61B5/153 ,  A61M5/329

    Abstract: A needle assembly (10) for use in preventing backflow of blood being collected from a patient comprises a housing (12) with a chamber (50) therein, and including first and second access openings (29, 30; 41, 42) through the housing (12) in fluid communication with the chamber (50). A cannula (14) extends outwardly from the first access opening (29, 30) and is adapted for insertion into a patient. The chamber (50) has a volume sufficiently large to store blood therein collected from the patient and to delay blood from backflowing from the second access opening (41, 42) into the first access opening (29, 30) under normal patient blood flow conditions due to the large amount of blood which must first be displaced from the chamber (50). In the chamber (50) there may be included flow resistance elements positioned in the chamber (50) to provide flow resistance in the flow of blood from the chamber (50) toward the first access opening (29, 30). These elements may include tapered cones to favor flow of blood in one direction but not the other direction.

    System of analysis
    33.
    发明公开
    System of analysis 失效
    分析系统

    公开(公告)号：EP0256415A3

    公开(公告)日：1988-07-06

    申请号：EP87111221

    申请日：1987-08-04

    Applicant: GAMBRO AB

    Inventor： Claren, Jan Seivert ,  Felding, Anders

    IPC: A61B05/14 ,  G01N33/48 ,  G01N01/14

    CPC classification number: A61B5/157 ,  A61B5/14532 ,  A61B5/15003 ,  A61B5/155

    Abstract: A system of analysis, comprising means for the withdrawal of blood from a patient or other source (1) and for the con­ducting of the same past a measuring electrode (5) or the like and means for the feed of a diluting and/or anticoagulant fluid (13) to a point near the said source (1). The system is characterized in that the said means com­prise one or more pumps (10, 14), with the help of which blood samples can be drawn intermittently, and which in between are adapted to feed some of the said fluid to the said point near the sampling point. The system is intended in particular for the measurement of potassium, calcium and sodium in the blood, but may also be used for the measurement of other substances, e g glucose in connection with diabetes.

    Blood collection assembly
    35.
    发明公开
    Blood collection assembly 失效
    血液收集装置

    公开(公告)号：EP0204893A3

    公开(公告)日：1987-10-07

    申请号：EP86102880

    申请日：1986-03-05

    Applicant: Becton, Dickinson and Company

    Inventor： Losada, Robert J.

    IPC: A61B05/14 ,  B01L03/14 ,  A61J01/00

    CPC classification number: A61B5/150351 ,  A61B5/150022 ,  A61B5/150213 ,  A61B5/150343

    Abstract: A cap is provided for a blood microcollection container (44) which cap incorporates a partially open tubular and tapered scoop arrangement (20) for engaging a puncture wound, and rapidly receiving blood from the wound. Longitudinally extending ribs (82,84) serve to define and maintain a blood flow and an air venting passage (30) in the collector, while preventing blood "hang-up" caused by capillary action in the blood flow passage of the collector. With this invention, the time of transfer is reduced substantially becaus less precise positioning is required of the scoop, and blood "hang-up" in the transfer passage is avoided.

    Oximeter
    36.
    发明公开
    Oximeter 失效
    血氧仪

    公开(公告)号：EP0140685A3

    公开(公告)日：1987-10-07

    申请号：EP84307394

    申请日：1984-10-26

    Applicant: AMERICAN HOSPITAL SUPPLY CORPORATION

    Inventor： McCartney, Ronald Lee ,  Marovich, Frank A.

    IPC: G02B06/38 ,  A61B05/14

    CPC classification number: A61B5/1459 ,  A61B2562/228 ,  G02B6/3823 ,  G02B6/3834 ,  G02B6/3855 ,  G02B6/3873 ,  G02B6/3885 ,  G02B6/389

    Abstract: An apparatus connectible to an instrument (17) comprising an optical fiber (37) for conducting light along its length and a connector body for use in coupling the optical fiber (37) to the instrument (17). The connector body (15) defines an enclosure having an entrance passage (73) leading into the enclosure and an exit passage (75) leading from the enclosure. The optical fiber (37) extends through the entrance passage (73) into the interior of the enclosure and into the exit passage (75). The optical fiber (37) has an enlarge end portion (107) which cooperates with the exit passage (75) to retain the end portion in the exit passage (75).

    Abstract translation: 一种可连接到仪器（17）的设备，该仪器包括用于沿着其长度传导光的光纤（37）和用于将光纤（37）耦合到仪器（17）的连接器主体。 连接器主体（15）限定具有通向外壳的入口通道（73）和从外壳通向的出口通道（75）的外壳。 光纤（37）延伸穿过入口通道（73）进入外壳的内部并进入出口通道（75）。 光纤（37）具有与出口通路（75）配合而将端部保持在出口通路（75）内的扩大端部（107）。

    A liquid sampler
    39.
    发明公开
    A liquid sampler 失效
    液体取样器

    公开(公告)号：EP0102070A3

    公开(公告)日：1984-08-22

    申请号：EP83108433

    申请日：1983-08-26

    Applicant: RADIOMETER A/S

    Inventor： Andersen, Jorgen

    IPC: A61B05/14

    CPC classification number: A61B5/15003 ,  A61B5/150213 ,  A61B5/150221 ,  A61B5/150236 ,  A61B5/150244 ,  A61B5/150259 ,  A61B5/150389 ,  A61B5/150519 ,  A61B5/153

    Abstract: A liquid sampler which may be used for collecting samples of arterial blood is preferably in the form of a syringe. A venting passage (25, 31) is defined in the syringe piston (12) so that gas may escape through the venting passage when arterial blood flows into the cylinder space (17) under the influence of the arterial blood pressure. The venting passage is controlled by valve means (19,21), which automatically close the venting passage when the cylinder space has been filled with blood and the blood starts flowing into the venting passage. The venting passage is closed by liquid resistant valve surface parts, and movement of these surface parts to their closing position is caused by a liquid reacting substance (22) which is exposed to the liquid sample flowing into the venting passage. This liquid reacting substance may, for example, be a material which swells, expands, or is softened when contacted by liquid. Alternatively, the liquid reacting substance may be a liquid soluble material.

    Abstract translation: 可用于收集动脉血样品的液体取样器优选为注射器的形式。 在注射器活塞（12）中限定通气通道（25,31），使得当动脉血液在动脉血压的影响下流入气缸空间（17）时，气体可以通过排气通道逸出。 排气通道由阀装置（19,21）控制，当气瓶空间已经充满血液并且血液开始流入通气通道时，阀装置（19,21）自动关闭通气通道。 通气通道由液体阻止的阀表面部分封闭，并且这些表面部分移动到其关闭位置是由暴露于流入通气通道的液体样品的液体反应物质（22）引起的。 这种液体反应物质可以是例如当与液体接触时膨胀，膨胀或软化的材料。 或者，液体反应物质可以是液体可溶物质。

    Multiple sample needle assembly
    40.
    发明公开
    Multiple sample needle assembly 失效
    多采样针组件

    公开(公告)号：EP0070975A3

    公开(公告)日：1983-06-22

    申请号：EP82103829

    申请日：1982-05-05

    Applicant: Becton, Dickinson and Company

    Inventor： Hoch, Louis ,  Lutkowski, Lawrence

    IPC: A61B05/14

    CPC classification number: A61B5/1545 ,  A61B5/15003 ,  A61B5/150213 ,  A61B5/150389 ,  A61B5/150496 ,  A61B5/150519 ,  A61B5/150732

    Abstract: A multiple sample needle assembly includes a housing (12) with a chamber (28) therein. A first cannula (14) for insertion into a liquid source is in fluid communication with the chamber (28). A second cannula (15) is movably positioned in the housing and is out of liquid communication with the chamber (28) when in a first position. A liquid flow mechanism (26) inside the chamber (28) is operatively responsive to inward movement of the second cannula (15) to a second position for allowing liquid to flow from the chamber (28) into the second cannula (15). After the liquid has been collected, the flow control mechanism (26) automatically returns the second cannula (15) to the first position.

    Abstract translation: 多采样针头组件包括其中具有腔室（28）的壳体（12）。 用于插入液体源的第一套管（14）与腔室（28）流体连通。 第二套管（15）可移动地定位在壳体中并且当处于第一位置时与腔室（28）不液体连通。 腔室（28）内的液体流动机构（26）可操作地响应于第二套管（15）向内移动到第二位置，以允许液体从腔室（28）流入第二套管（15）。 在液体已被收集之后，流量控制机构（26）自动地将第二套管（15）返回到第一位置。

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