Piston assembly for syringe
    1.
    发明申请
    Piston assembly for syringe 审中-公开
    活塞组件用于注射器

    公开(公告)号:US20050010175A1

    公开(公告)日:2005-01-13

    申请号:US10788818

    申请日:2004-02-27

    IPC分类号: A61M5/315

    摘要: A piston assembly (10) for a flowable materials container having a barrel (14) defining a fluid containing chamber (16). The barrel (14) is made of a body of a cyclic olefin containing polymer or a bridged polycyclic olefin containing polymer. An elastomeric piston (24) is slidably attached to the barrel (14) and provides a seal of the chamber. The piston (24) has a parylene coating on an outer surface thereof to reduce the necessary break away force. A plunger (22) is also provided and has a second mating member (42) removably connecting the plunger to a first mating member (44) of the piston. The first mating member (44) has a series of threads having a major diameter and a minor diameter, and the second mating member (42) has a series of threads having a major diameter and a minor diameter. The major and minor diameters of the second mating members (42) is appreciably smaller than the major and minor diameters of the other of the first mating member (44) to provide ease of connection.

    摘要翻译: 一种用于可流动材料容器的活塞组件(10),其具有限定流体容纳室(16)的桶(14)。 桶(14)由含环烯烃的聚合物或含桥连多环烯烃的聚合物的主体制成。 弹性体活塞(24)可滑动地附接到筒体(14)并提供腔室的密封。 活塞(24)在其外表面上具有聚对二甲苯涂层以减少必要的脱离力。 还设置有柱塞(22),并且具有将活塞可移除地连接到活塞的第一配合构件(44)的第二配合构件(42)。 第一配合构件(44)具有一系列具有大直径和小直径的螺纹,并且第二配合构件(42)具有一系列具有大直径和小直径的螺纹。 第二配合构件(42)的主要和次要尺寸明显小于第一配合构件(44)中另一个的主要和次要直径,以提供易于连接。

    Infusor having a distal flow regulator
    3.
    发明授权
    Infusor having a distal flow regulator 失效
    具有远端流量调节器的输液管

    公开(公告)号:US4741733A

    公开(公告)日:1988-05-03

    申请号:US51174

    申请日:1987-05-14

    IPC分类号: A61M5/14 A61M5/00

    CPC分类号: A61M5/141 Y10S128/12

    摘要: An infusor (10) is disclosed for dispensing a liquid under pressure at a predetermined flow rate. The influsor (10) includes a housing (12) containing an elastomeric bladder (16) for receiving the liquid under pressure. The liquid is delivered from the bladder to a patient through tubing (36). A non-adjustable, preselected flow regulator (38) includes a capillary bore (48). The flow regulator (38) is disposed at the distal end of the tubing (36), such that the tubing may be primed quickly, in a time period virtually unaffected by the flow regulator (38). Distal placement of the flow regulator (38) results in a more constant temperature, and thus a more constant flow rate, of fluid flowing through the flow regulator.

    摘要翻译: 公开了一种用于以预定流量在压力下分配液体的注入器(10)。 膨胀机(10)包括容纳用于在压力下接收液体的弹性体囊(16)的壳体(12)。 液体通过管道(36)从膀胱递送至患者。 不可调节的预选流量调节器(38)包括毛细孔(48)。 流量调节器(38)设置在管道(36)的远端处,使得管线可以在几乎不受流量调节器(38)影响的时间段内被快速引导。 流量调节器(38)的远端放置导致流过流量调节器的流体具有更恒定的温度,从而导致更恒定的流速。

    Infusor having a distal flow regulator
    4.
    发明授权
    Infusor having a distal flow regulator 失效
    具有远端流量调节器的输液管

    公开(公告)号:US4904239A

    公开(公告)日:1990-02-27

    申请号:US189095

    申请日:1988-05-02

    IPC分类号: A61M5/14

    CPC分类号: A61M5/141 Y10S128/12

    摘要: An infusor (10) is disclosed for dispensing a liquid under pressure at a predetermined flow rate. The infusor (10) includes a housing (12) containing an elastomeric bladder (16) for receiving the liquid under pressure. The liquid is delivered from the bladder to a patient through tubing (36). A non-adjustable, preselected flow regulator (38) includes a capillary bore (48). The flow regulator (38) is disposed at the distal end of the tubing (36), such that the tubing may be primed quickly, in a time period virtually unaffected by the flow regulator (38). Distal placement of the flow regulator (38) results in a more constant temperature, and thus a more constant flow rate, of fluid flowing through the flow regulator.

    摘要翻译: 公开了一种用于以预定流量在压力下分配液体的注入器(10)。 该注入器(10)包括容纳用于在压力下接收液体的弹性囊(16)的壳体(12)。 液体通过管道(36)从膀胱递送至患者。 不可调节的预选流量调节器(38)包括毛细孔(48)。 流量调节器(38)设置在管道(36)的远端处,使得管线可以在几乎不受流量调节器(38)影响的时间段内被快速引导。 流量调节器(38)的远端放置导致流过流量调节器的流体具有更恒定的温度,从而导致更恒定的流速。

    Two-way valve for infusion devices
    5.
    发明授权
    Two-way valve for infusion devices 失效
    用于输液装置的两通阀

    公开(公告)号:US5098385A

    公开(公告)日:1992-03-24

    申请号:US514772

    申请日:1990-04-26

    申请人: Derek Walsh

    发明人: Derek Walsh

    IPC分类号: A61M5/168 A61M39/00 A61M39/26

    CPC分类号: A61M39/26

    摘要: A disposable infuser is provided having a source of pressurized liquid contained in a liquid chamber (14). The liquid chamber (14) includes housing (20) defining an access aperture (83). A one-way duck-bill valve (80) is contained in the access aperture (83). A separate outlet conduit (84) is provided having a blunt cannula (98). When the outlet conduit (86) is attached to the housing (20), the blunt cannula (98) extends into the duck-bill valve (80) sufficiently to open the duck-bill valve (80) to establish fluid communication between the source of pressurized liquid (14) and the outlet conduit (84).

    摘要翻译: 提供具有容纳在液体室(14)中的加压液体源的一次性注入器。 液体室(14)包括限定出入口(83)的壳体(20)。 单向鸭嘴阀(80)容纳在进入孔(83)中。 提供具有钝头插管(98)的单独的出口导管(84)。 当出口管道(86)附接到壳体(20)时,钝头插管(98)充分延伸到鸭嘴阀门(80)中以打开鸭嘴阀门(80),以建立流体连通 的加压液体(14)和出口导管(84)。