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    • 6. 发明申请
    • MICROMECHANIC PASSIVE FLOW REGULATOR
    • 微生物被动流量调节器
    • WO2011098946A1
    • 2011-08-18
    • PCT/IB2011/050514
    • 2011-02-07
    • DEBIOTECH S.A.CHAPPEL, Eric
    • CHAPPEL, Eric
    • A61M5/168A61M27/00F15C3/04F15C5/00F16K11/00G05D7/01F16K99/00
    • A61M5/16881A61M5/14276A61M5/145A61M5/16813A61M27/006A61M2039/2413A61M2205/0244F16K99/0001F16K99/0015F16K99/0057F16K2099/008F16K2099/0088G05D7/0635G05D7/0694Y10T137/7791Y10T137/86734
    • The invention concerns a flow regulator, made of a stack of 3 plates, respectively a top plate including a flexible membrane (1), a middle plate (2) with pillars and through holes and a bottom plate ( 3 ) with fluidic ports, micro channels and through holes (8,9,12). The principle is based on the deformation of the membrane due to the pressure of the liquid. The membrane goes in contact with the pillars of the middle plate, obstructing gradually the through holes of the pillars. The device is designed to keep the flow constant in a predefined range of pressure. The device is dedicated to ultra low flow rate up to 1 ml per day or below, typically for drug infusion. Plastic flow regulators comprise preferably several independent valves coupled in parallel. The membrane plate is therefore made of several flexible membranes obstructing gradually the flow by increasing the pressure. Stress limiters are used to avoid plastic deformation of the membrane. For implanted pump, the use of a flow regulator instead of a flow restrictor has several advantages, including the possibility to reduce significantly the reservoir pressure and to generate directly the pressure during the pump filling by using an elastic drug reservoir.
    • 本发明涉及一种流量调节器,由三个板组成,分别是包括柔性膜(1),具有支柱和通孔的中间板(2)和具有流体端口的底板(3)的顶板,微板 通道和通孔(8,9,12)。 该原理是基于液体由于压力引起的膜的变形。 膜与中间板的支柱接触,逐渐阻塞柱的通孔。 设备旨在使流量保持在预定的压力范围内。 该设备专用于每天或以下超过1毫升的超低流速,通常用于药物输注。 塑料流量调节器优选并联连接多个独立的阀。 因此,膜片由几个柔性膜制成,通过增加压力逐渐阻塞流动。 应力限制器用于避免膜的塑性变形。 对于植入式泵,使用流量调节器代替限流器具有若干优点,包括显着降低储层压力并通过使用弹性药物储存器在泵填充期间直接产生压力的可能性。