FLUIDIC DEVICES
    1.
    发明申请
    FLUIDIC DEVICES 审中-公开
    流体装置

    公开(公告)号:WO2004088148A1

    公开(公告)日:2004-10-14

    申请号:PCT/GB2004/001290

    申请日:2004-03-24

    Abstract: A fluidic device comprising a housing having an inlet (10) and an outlet (12) defining a fluid flow path (14) therebetween. A channel (16) is provided within the housing, which channel (16) is filled with a material (18), such as wax, which supports a reversible, electromagnetic energy activated change in plasticity and/or deformability. The channel (16) filled with material is covered (or enclosed) by a resiliently flexible membrane (20). A port (22) is provided in the housing for the application of pressure or vacuum to the material (18) in the channel (16). A valve seat (24) is provided between the inlet (10) and the outlet. When no electromagnetic energy is applied to the wax (18), it is in a substantially solid state and remains stationary within the channel (16). In use, to open the valve, the wax is melted by the application of electromagnetic energy thereto, and a vacuum is applied to the port (22), such that the portion of the membrane (20) adjacent the valve seat (24) is pulled down, away from the valve seat (24) as the molten wax is drawn back by the vacuum, thereby opening the fluid flow path (14) between the inlet (10) and the outlet (12). With the vacuum still being applied to the port (22), the wax is allowed (or caused) to cool, and the wax (18) solidifies, locking the valve in the open position. In order to close the valve, pressure is applied to the port (22) and the wax (18) is melted by the application of electromagnetic energy thereto. The pressure applied via port (22) pushes the wax forward along the channel (16) toward the fluid flow path (14). The build-up of pressure causes the portion of the membrane (20) adjacent the valve seat (24) to be pushed upwards toward the valve seat (24), thereby blocking the fluid flow path (14) and closing the valve. With pressure being applied to the port (22), the wax (18) is allowed (or caused) to cool, such that it solidifies, locking the valve in the closed position.

    Abstract translation: 一种流体装置,包括具有入口(10)的壳体和在其间限定流体流路(14)的出口(12)。 通道(16)设置在壳体内,该通道(16)填充有诸如蜡的材料(18),其支撑可逆的电磁能激活的可变性和/或可变形性的变化。 填充有材料的通道(16)被弹性柔性膜(20)覆盖(或封闭)。 在壳体中设置有一个端口(22),用于向通道(16)中的材料(18)施加压力或真空。 阀座(24)设置在入口(10)和出口之间。 当蜡(18)没有施加电磁能量时,其处于基本固态并且在通道(16)内保持静止。 在使用中,为了打开阀门,通过对其施加电磁能来熔化蜡,并且向端口(22)施加真空,使得邻近阀座(24)的膜(20)的部分是 当熔融的蜡被真空拉回时,从阀座(24)离开,从而打开入口(10)和出口(12)之间的流体流动路径(14)。 当真空仍然施加到端口(22)时,允许(或引起)蜡冷却,并且蜡(18)固化,将阀锁定在打开位置。 为了关闭阀门,压力施加到端口(22)上,蜡(18)通过施加电磁能而熔化。 通过端口(22)施加的压力将蜡沿着通道(16)推向流体流动路径(14)。 压力的累积导致邻近阀座(24)的膜(20)的部分被向上推向阀座(24),从而阻塞流体流动路径(14)并关闭阀门。 当压力施加到端口(22)时,蜡(18)被允许(或引起)冷却,使得其固化,将阀锁定在关闭位置。

    METHOD AND DEVICE FOR ULTRASONICALLY MANIPULATING PARTICLES WITHIN A FLUID

    公开(公告)号:WO2003102737A3

    公开(公告)日:2003-12-11

    申请号:PCT/US2003/017274

    申请日:2003-06-03

    Abstract: Fluid-handling methods and devices for ultrasonic manipulation of fluid-borne particles comprise a fluid-handling manifold and an ultrasonic particle manipulator defining an ultrasonic cavity within the manifold. Fluid-borne particles introduced into the manifold are manipulated by controlling ultrasonic standing waves at the ultrasonic cavity. Cavities having non-uniform configurations, asymmetric standing waves and/or multiple ultrasonic cavities within the manifold are operative to control the movement of the fluid-borne particles, optionally including collecting and holding such particles, transferring particles through an intersection from one channel to another, etc. Solid phase extraction (SPE) particles, biological particles and other fluid-borne particles can be manipulated within the fluid-handling manifold.

    MICRO-VALVE
    3.
    发明申请
    MICRO-VALVE 审中-公开
    微型阀

    公开(公告)号:WO2008050126A1

    公开(公告)日:2008-05-02

    申请号:PCT/GB2007/004071

    申请日:2007-10-25

    Abstract: A one-way valve (1 ) comprises a seat (5) and a membrane (4) having an inner portion (4a) that is stretched over the seat, wherein, in use, the inner membrane portion is selectively deflected from the seat such that a fluid path is created from one side of the membrane to the other so as to open the valve, and wherein an outer peripheral portion (4b) of the membrane is stiffer than the inner portion such that the membrane deflection is substantially restricted to only the inner portion. The one-way valve may be used in a pump for an infusion system.

    Abstract translation: 单向阀(1)包括座(5)和膜(4),其具有在座上被拉伸的内部部分(4a),其中在使用中,内膜部分选择性地从座椅偏转 从膜的一侧到另一侧产生流体路径以打开阀,并且其中膜的外周部分(4b)比内部部分更硬,使得膜偏转基本上仅限于 内部。 单向阀可用于输液系统的泵。

    MACROMECHANICAL COMPONENTS
    4.
    发明申请
    MACROMECHANICAL COMPONENTS 审中-公开
    大型组件

    公开(公告)号:WO2003081052A1

    公开(公告)日:2003-10-02

    申请号:PCT/GB2003/001218

    申请日:2003-03-21

    Abstract: An actuator for a component such as a valve or pump comprises a chamber or capsule (30) of a flexible material, which chamber or capsule (30) is mounted on a substrate (18). Within the capsule (30) is a quantity of thermopneumatic material (32) ( i.e. material which expands in volume upon heating). Also disposed within the capsule (30) is an infrared radiation absorbing layer (16). In use, infrared radiation is applied to the capsule (30) at or close to the location of the infrared radiation absorbing layer (16), thereby causing the thermopneumatic material (32) within the capsule (30) to be heated. As the thermopneumatic material (32) is heated, it expands in volume and causes movement of the flexible material forming the capsule (30), i.e. it causes mechanical movement thereof. As the thermopneumatic material (32) cools, it returns to its original volume and the flexible material of the capsule returns to its original position accordingly.

    Abstract translation: 用于诸如阀或泵的部件的致动器包括柔性材料的腔室或胶囊(30),该腔室或胶囊(30)安装在基底(18)上。 在胶囊(30)内是一定量的热气动材料(即加热时体积膨胀的材料)。 还设置在胶囊(30)内的是红外线辐射吸收层(16)。 在使用中,红外辐射在红外辐射吸收层(16)的位置处或其附近被施加到胶囊(30),从而使胶囊(30)内的热气体材料(32)被加热。 当热气体材料(32)被加热时,其膨胀并导致形成胶囊(30)的柔性材料的移动,即它引起机械运动。 当热气体材料(32)冷却时,其返回到其原始体积,并且胶囊的柔性材料相应地返回到其原始位置。

    DISPLACEMENT SENSOR
    5.
    发明申请
    DISPLACEMENT SENSOR 审中-公开
    位移传感器

    公开(公告)号:WO2010038031A2

    公开(公告)日:2010-04-08

    申请号:PCT/GB2009002353

    申请日:2009-10-02

    Abstract: A linear capacitance displacement transducer (1 ) comprising first (2) and second (3) fixed capacitor plate and a dielectric structure (5) moveable longitudinally within a space (4) between the first (2) and second (3) capacitor plates, the dielectric structure (5) being operatively coupled to a moveable element (8). The capacitor plates and the dielectric material may be cylindrical and disposed coaxially and concentrically. The transducer (1) enables a displacement sensor that is capable of monitoring liquid levels in a syringe type drug reservoir (101) with sufficient sensitivity as to allow detection of erroneous drug delivery. The sensor is inexpensive to manufacture and provides reliable performance through robust design.

    Abstract translation: 一种线性电容位移传感器(1),包括第一(2)和第二(3)固定电容器板以及在第一(2)和第二(3)电容器板之间的空间(4)内纵向移动的介电结构(5) 介电结构(5)可操作地耦合到可移动元件(8)。 电容器板和电介质材料可以是圆柱形的,并且同轴和同心地设置。 换能器(1)能够使位移传感器能够以足够的灵敏度监测注射器型药物储存器(101)中的液位,以允许检测错误的药物输送。 该传感器制造成本低廉,并通过坚固的设计提供可靠的性能。

    DISPLACEMENT SENSOR
    7.
    发明申请
    DISPLACEMENT SENSOR 审中-公开

    公开(公告)号:WO2010038031A3

    公开(公告)日:2010-04-08

    申请号:PCT/GB2009/002353

    申请日:2009-10-02

    Abstract: A linear capacitance displacement transducer (1 ) comprising first (2) and second (3) fixed capacitor plate and a dielectric structure (5) moveable longitudinally within a space (4) between the first (2) and second (3) capacitor plates, the dielectric structure (5) being operatively coupled to a moveable element (8). The capacitor plates and the dielectric material may be cylindrical and disposed coaxially and concentrically. The transducer (1) enables a displacement sensor that is capable of monitoring liquid levels in a syringe type drug reservoir (101) with sufficient sensitivity as to allow detection of erroneous drug delivery. The sensor is inexpensive to manufacture and provides reliable performance through robust design.

    WAX MICRO ACTUATOR
    8.
    发明申请
    WAX MICRO ACTUATOR 审中-公开
    WAX微动执行器

    公开(公告)号:WO2008050128A1

    公开(公告)日:2008-05-02

    申请号:PCT/GB2007/004073

    申请日:2007-10-25

    CPC classification number: F04B43/043 F04B35/00

    Abstract: An actuator comprises a cavity (2) containing a working medium (3) that reversibly expands as it undergoes a phase change from a solid to a liquid state, a diaphragm (4) disposed adjacent the cavity such that expansion and contraction of the expandable working medium causes the diaphragm to deflect, and a semiconductor element (6) disposed in the cavity, wherein the semiconductor element is adapted to heat the working medium to cause it to undergo the phase change into the liquid state. The actuator may be used in a pump for an infusion system.

    Abstract translation: 一个致动器包括一个空腔(2),该腔体(2)包含工作介质(3),该工作介质(3)在经历从固体到液体状态的相变时可逆地膨胀;邻近腔体设置的隔膜(4),使得可膨胀工作的膨胀和收缩 介质导致隔膜偏转,以及设置在空腔中的半导体元件(6),其中半导体元件适于加热工作介质以使其进入液态。 致动器可以用在用于输液系统的泵中。

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