Multirate tubing flow restrictor
    3.
    发明授权
    Multirate tubing flow restrictor 失效
    多管道流量限制器

    公开(公告)号:US07690396B2

    公开(公告)日:2010-04-06

    申请号:US11458903

    申请日:2006-07-20

    IPC分类号: F16K5/10

    摘要: A flow control valve for medical liquid is disclosed. The valve has a housing including an inlet, an outlet, and a flow path therebetween. A plurality of flow restrictors are located in the flow path to define a plurality of flow streams of differing flow rates. A flow control member is disposed in the flow path, and has a plurality of discrete apertures in a first region or plane and at least one aperture in a second region or plane spaced apart from the first plane. The flow control member is rotationally movable and defines an annular gap and radial groove which provide fluid communication between the different planes and the outlet regardless of the orientation of the flow control member. The flow control member may be rotated between a first position in which one of the plurality of apertures in the first plane is in communication with one of the flow streams to define a first flow rate through the valve, and a second position in which one of the at least one aperture in the second plane is in communication with a different one of the flow streams to define a second flow rate through the valve different from the first flow rate.

    摘要翻译: 公开了一种用于医用液体的流量控制阀。 阀具有壳体,其包括入口,出口和它们之间的流动路径。 多个限流器位于流动路径中以限定多个不同流速的流动流。 流动控制构件设置在流动路径中,并且在第一区域或平面中具有多个离散孔,以及在与第一平面间隔开的第二区域或平面中的至少一个孔。 流动控制构件可旋转地移动并且限定环形间隙和径向凹槽,其提供不同平面和出口之间的流体连通,而与流量控制构件的取向无关。 流动控制构件可以在第一位置中的第一位置之间旋转,第一位置中第一平面中的多个孔中的一个与一个流动流连通,以限定通过该阀的第一流量;以及第二位置, 第二平面中的至少一个孔与不同的流动流连通以限定通过不同于第一流量的阀的第二流量。

    Pump chamber and valve assembly
    7.
    发明授权
    Pump chamber and valve assembly 失效
    泵室和阀组件

    公开(公告)号:US5551850A

    公开(公告)日:1996-09-03

    申请号:US439316

    申请日:1995-05-11

    摘要: A medical infusion pump (10) using a pump chamber cassette (86) has a housing (20,22) defining a pump chamber cassette receptacle (84) and a pump driving mechanism (250) for propelling liquid through the pump chamber cassette. A door (50) holds the pump chamber cassette (86) within the cassette receptacle (84) in an operative position relative to the driving mechanism (250). The cassette includes an elastomeric conduit (132), a frame (134) and clips (146,148) for attaching the elastomeric conduit (132) to the frame (134) for holding the elastomeric conduit (132) in a select position relative to the pump driving mechanism (250) of the infusion pump upon placement of the cassette (86) in an operative position relative to the pump driving mechanism (250). An anti-free flow device (136,138) includes the flexible conduit (132) received between an anvil (182) fixedly attached to the frame (134) and a pincher (132) attached to the frame (134), the pincher (138) being movable between a first position biasing the pincher (138) against the anvil (182) to occlude a lumen (150) of the elastomeric conduit (132) and a second position for eliminating the bias of the pincher (138) against the anvil (182) so as to not occlude the lumen (150) of the elastomeric conduit (132). The elastomeric conduit (132) is made of an elongate elastomeric robe having an inlet valve portion (142) and an outlet valve portion (144) made of a furst material and a chamber portion (140) disposed therebetween, the chamber portion being made of a second material. The first material has a durometer of less than a durometer of the second material. The chamber portion (140), inlet valve portion (142) and the outlet valve portion (144) may have a football-shaped cross-section.

    摘要翻译: 使用泵室盒(86)的医用输液泵(10)具有限定泵室盒容器(84)的壳体(20,22)和用于推动液体通过泵室盒的泵驱动机构(250)。 门(50)将泵室盒(86)保持在盒式存储器(84)内相对于驱动机构(250)工作的位置。 该盒包括弹性体导管(132),框架(134)和用于将弹性体导管(132)附接到框架(134)的夹子(146,148),用于将弹性体导管(132)保持在相对于泵 在将盒(86)相对于泵驱动机构(250)放置在操作位置时,输液泵的驱动机构(250)。 抗自由流动装置(136,138)包括容纳在固定地附接到框架(134)的砧座(182)和附接到框架(134)的夹持器(132)之间的柔性导管(132),夹持器(138) 可以在偏压夹持器(138)抵靠砧座(182)的第一位置之间移动以闭塞弹性体管道(132)的管腔(150),以及第二位置,用于消除夹钳(138)抵靠砧座的偏压 182),以便不堵塞弹性体导管(132)的内腔(150)。 弹性体管道(132)由具有入口阀部分(142)的细长弹性体长袍和由毛皮材料制成的出口阀部分(144)和设置在其间的室部分(140)制成,所述室部分由 第二种材料。 第一种材料的硬度小于第二种材料的硬度。 腔室部分(140),入口阀部分(142)和出口阀部分(144)可以具有足球形横截面。

    Ambulatory infusion pump
    8.
    发明授权
    Ambulatory infusion pump 失效
    动态输液泵

    公开(公告)号:US5482446A

    公开(公告)日:1996-01-09

    申请号:US209518

    申请日:1994-03-09

    IPC分类号: A61M5/142 A61M39/28 F04B43/08

    摘要: A medical infusion pump (10) using a pump chamber cassette (86) has a housing (20,22) defining a pump chamber cassette receptacle (84) and a pump driving mechanism (250) for propelling liquid through the pump chamber cassette. A door (50) holds the pump chamber cassette (86) within the cassette receptacle (84) in an operative position relative to the driving mechanism (250). The cassette includes an elastomeric conduit (132), a frame (134) and clips (146,148) for attaching the elastomeric conduit (132) to the frame (134) for holding the elastomeric conduit (132) in a select position relative to the pump driving mechanism (250) of the infusion pump upon placement of the cassette (86) in an operative position relative to the pump driving mechanism (250). A anti-free flow device (136,138) includes the flexible conduit (132) received between an anvil (182) fixedly attached to the frame (134) and a pincher (132) attached to the frame (134), the pincher (138) being movable between a first position biasing the pincher (138) against the anvil (182) to occlude a lumen (150) of the elastomeric conduit (132) and a second position for eliminating the bias of the pincher (138) against the anvil (182) so as to not occlude the lumen (150) of the elastomeric conduit (132). The elastomeric conduit (132) is made of an elongate elastomeric tube having an inlet valve portion (142) and an outlet valve portion (144) made of a first material and a chamber portion (140) disposed therebetween, the chamber portion being made of a second material. The first material has a durometer of less than a durometer of the second material. The chamber portion (140), inlet valve portion (142) and the outlet valve portion (144) may have a football-shaped cross-section.

    摘要翻译: 使用泵室盒(86)的医用输液泵(10)具有限定泵室盒容器(84)的壳体(20,22)和用于推动液体通过泵室盒的泵驱动机构(250)。 门(50)将泵室盒(86)保持在盒式存储器(84)内相对于驱动机构(250)工作的位置。 该盒包括弹性体导管(132),框架(134)和用于将弹性体导管(132)附接到框架(134)的夹子(146,148),用于将弹性体导管(132)保持在相对于泵 在将盒(86)相对于泵驱动机构(250)放置在操作位置时,输液泵的驱动机构(250)。 抗自由流动装置(136,138)包括容纳在固定地附接到框架(134)的砧座(182)和附接到框架(134)的夹持器(132)之间的柔性导管(132),夹持器(138) 可以在偏压夹持器(138)抵靠砧座(182)的第一位置之间移动以闭塞弹性体管道(132)的管腔(150),以及第二位置,用于消除夹钳(138)抵靠砧座的偏压 182),以便不堵塞弹性体导管(132)的内腔(150)。 弹性体管道(132)由具有入口阀部分(142)和由第一材料制成的出口阀部分(144)和设置在其间的室部分(140)的细长弹性体管制成,腔室部分由 第二种材料。 第一种材料的硬度小于第二种材料的硬度。 腔室部分(140),入口阀部分(142)和出口阀部分(144)可以具有足球形横截面。

    Fluid flow rate switching device
    10.
    发明授权
    Fluid flow rate switching device 有权
    流体流量切换装置

    公开(公告)号:US06273133B1

    公开(公告)日:2001-08-14

    申请号:US09418650

    申请日:1999-10-15

    IPC分类号: F16K1108

    摘要: A fluid flow rate switching device providing a plurality of precise user selectable flow rates. Generally, the device includes a housing having a port and a plurality of passages. Respectively disposed in each of the passages is a rigid capillary tube for regulating the flow rate of a therapeutic fluid through the passages. Further, a valve is rotatably connected to the housing for operably connecting and disconnecting the port from one or more of the passages.

    摘要翻译: 一种提供多个精确的用户可选流量的流体流速切换装置。 通常,该装置包括具有端口和多个通道的壳体。 分别设置在每个通道中的是用于调节通过通道的治疗流体的流速的刚性毛细管。 此外,阀可旋转地连接到壳体,用于可操作地将端口与一个或多个通道连接和断开。