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    Biological fluid delivery system
    4.
    发明授权
    Biological fluid delivery system 失效
    生物流体输送系统

    公开(公告)号：US5899873A

    公开(公告)日：1999-05-04

    申请号：US823529

    申请日：1997-03-24

    申请人： Kenneth A. Jones ,  Martyn Abbott ,  Andrew P. Mattson

    发明人： Kenneth A. Jones ,  Martyn Abbott ,  Andrew P. Mattson

    IPC分类号： A61M1/36 ,  A61M37/00

    CPC分类号： A61M1/3664

    摘要： A cardioplegia system for delivering cardioplegic solution to the heart during open heart surgery in cooperation with an extracorporeal blood circuit employing a heart/lung machine, includes a conduit diverting a portion of the blood flow from the heart/lung machine to a cardioplegia delivery line. A heat exchanger assembly including a heat exchanger for controlling fluid temperature is provided in the cardioplegia delivery line. In addition to a heat exchanger, the heat exchanger assembly includes an integral bubble trap, filtration means and means to enable the measurement of certain physical characteristics of the circulating cardioplegia fluid and/or certain events occurring within the heat exchanger assembly.

    摘要翻译： 一种心脏停搏系统，用于在开心心脏手术期间与使用心脏/肺机的体外血液回路相结合，将心脏停搏液提供给心脏，包括导管将一部分血流从心脏/肺机转移到心麻痹输送管线。 在心麻痹输送管线中设置有包括用于控制流体温度的热交换器的热交换器组件。 除了热交换器之外，热交换器组件还包括一体式气泡阱，过滤装置和能够测量循环心麻痹液体的某些物理特性和/或在热交换器组件内发生的某些事件的装置。

    Volumetric metering unit for intravenous fluid addition
    5.
    发明授权
    Volumetric metering unit for intravenous fluid addition 失效
    静脉注射液体积计量单位

    公开(公告)号：US4559044A

    公开(公告)日：1985-12-17

    申请号：US404811

    申请日：1982-08-03

    申请人： Thomas P. Robinson ,  Don M. Killman ,  Andrew P. Mattson ,  James E. Hudson, Jr.

    发明人： Thomas P. Robinson ,  Don M. Killman ,  Andrew P. Mattson ,  James E. Hudson, Jr.

    IPC分类号： G01G17/06 ,  A61M5/168 ,  G01F11/08 ,  A61M5/00

    CPC分类号： G01F11/08 ,  A61M5/16809

    摘要： Three embodiments of a metering unit (10, 140, 200) are provided for metering fluid from a container (14) for infusion into a patient. The first embodiment of the metering unit (10) includes a cassette (26) formed of halves (28, 30). The halves (28, 30) each have a concave reservoir portion (36) formed on the inner face (32) thereon. Entry and exit channels (38, 42) extend from the reservoir portions adjacent entry and exit orifices (40, 44). Entry and exit port portions (46, 50) are formed in each half (28, 30). Flexible entry and exit valves (58, 64, 86 and 88) are movable between an open position, permitting fluid to flow through the orifices, to a closed position, preventing fluid from flowing through the orifices. The halves are separated by a flexible diaphragm (70) which divides a reservoir (76) into first and second compartments (78, 80). One entry valve is opened to permit fluid from the entry port (82) to flow into one compartment, the fluid flowing into the compartment moving the flexible diaphragm to force the fluid in the other compartment out to the exit port (84). The position of the valves is then interchanged, permitting fluid to flow into the other compartment and forcing the fluid in the first compartment into the exit port. A cassette (206) in the third embodiment of the unit (200) includes identical halves (208, 210) sonically bonded together. A diaphragm (296) separates parallel channels (218, 222) to reduce head pressure channel volume variations. Grooves (228, 230) are provided in the reservoir portions (216) to prevent fluid trappage between the diaphragm and portion wall. In all cassette embodiments, an activating frame operating the cassette prevents the positioning of all valves in the open position simultaneously.

    摘要翻译： 计量单元（10,140,​​200）的三个实施例被提供用于从容器（14）计量流体以输注到患者体内。 计量单元（10）的第一实施例包括由半部（28,30）形成的盒（26）。 半部（28,30）各自具有形成在其上的内表面（32）上的凹形容纳部分（36）。 入口和出口通道（38,42）从邻近入口和出口孔（40,44）的储存器部分延伸。 入口和出口部分（46,50）形成在每一半（28,30）中。 柔性入口和出口阀（58,64,86和88）可以在允许流体流过孔口的打开位置之间移动到关闭位置，从而防止流体流过孔口。 一半由柔性隔膜（70）分开，该隔膜将贮存器（76）分成第一和第二隔室（78,80）。 一个入口阀被打开以允许来自入口（82）的流体流入一个隔室，流入隔间的流体移动柔性膜片，以迫使另一隔室中的流体流出出口（84）。 然后将阀的位置互换，允许流体流入另一隔室并迫使第一隔室中的流体进入出口。 单元（200）的第三实施例中的盒（206）包括声音结合在一起的相同的半部（208,210）。 隔膜（296）分离平行通道（218,222）以减小头部压力通道体积变化。 凹槽（228,230）设置在储存部分（216）中，以防止隔膜和部分壁之间的流体堵塞。 在所有盒式磁带实施例中，操作盒的启动框防止所有阀在同时处于打开位置的位置。

    Spline pumping assembly
    6.
    发明授权
    Spline pumping assembly 失效
    花键泵装置

    公开(公告)号：US5638737A

    公开(公告)日：1997-06-17

    申请号：US563202

    申请日：1995-11-27

    申请人： Andrew P. Mattson ,  Martyn Abbott ,  Lee K. Kulle

    发明人： Andrew P. Mattson ,  Martyn Abbott ,  Lee K. Kulle

    IPC分类号： A61M1/10 ,  F04B43/02 ,  F16J3/02

    CPC分类号： A61M1/1046 ,  F04B43/02 ,  F04B43/026 ,  A61M2205/12

    摘要： The present invention relates to a piston assembly for use in a fluid delivery system. The piston assembly is comprised of two elements: a splined-piston having generally a convex shape and a ribbed-base, that receives the piston, which has a complementary concave shape. The interposition of the splines and ribs and the complementary shaping of the two elements permit: a constant supporting surface area to be realized throughout a pumping cycle; the establishment of a constant supporting surface that readily and fully supports a thin, flexible material such that the material cannot not likely become stretched, unsupported or bound within the pumping mechanism throughout the pumping cycle; and the establishment of a relationship between the piston and its associated pumping chamber that enables a precise volumetric quantity to be delivered consistently and accurately.

    摘要翻译： 本发明涉及一种用于流体输送系统的活塞组件。 活塞组件包括两个元件：具有大体凸起形状的花键活塞和肋底，其接收具有互补凹形的活塞。 花键和肋的插入以及两个元件的互补成形允许：在整个泵送循环中实现恒定的支撑表面积; 稳定的支撑表面的建立容易且完全地支撑薄的柔性材料，使得该材料不可能在整个泵送循环期间在泵送机构内不会被拉伸，不受支撑或束缚; 以及建立活塞及其相关联的泵送室之间的关系，使得能够一致和准确地输送精确的体积量。