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    • 6. 发明申请
    • DEVICE AND METHOD FOR DETECTING MICROORGANISMS
    • 用于检测微生物的装置和方法
    • WO1996039533A1
    • 1996-12-12
    • PCT/US1996008700
    • 1996-06-04
    • AKZO NOBEL N.V.READ, Karen, A.TROGDON, David, E.THORPE, Thurman, C.RONSICK, Christopher, S.JEFFREY, Scott, R.
    • AKZO NOBEL N.V.
    • C12Q01/22
    • G01N21/253C12M23/08C12M23/38C12M29/20C12M41/26C12M41/36C12Q1/04
    • A method and a sealable, sterilizable vessel (36) for detecting the presence of microorganisms in a specimen, the vessel containing a liquid culture medium and a sensor (37) with an indicator medium therein. A gas permeable membrane (31) with a gas impermeable removable seal (32) thereon are provided in a wall of the vessel. If the microorganism to be detected is an anaerobic organism, then the gas impermeable seal (32) is left in place. If the microorganism to be detected is an aerobic organism, then the gas impermeable seal (32) is removed so as to allow the passage of oxygen into the vessel. In a preferred embodiment, the gas permeable membrane (31) allows the passage of oxygen into the vessel while at least partly restricting the passage of carbon dioxide to outside of the vessel. Changes in the indicator medium resulting from a change in gas production (CO2, NH2, H2S, etc.), volatile acid production or pH concentration in the medium, are detected from outside the vessel.
    • 一种用于检测样品中微生物的存在的方法和可密封的可灭菌容器(36),所述容器含有液体培养基和其中具有指示剂介质的传感器(37)。 在容器的壁上设置有其上具有气体不可渗透的可移除密封件(32)的透气膜(31)。 如果要检测的微生物是厌氧生物,则将不透气密封件(32)留在原位。 如果要检测的微生物是有氧生物体,则除去气体不可渗透的密封件(32),以允许氧气进入容器。 在优选实施例中,气体可渗透膜(31)允许氧气进入容器,同时至少部分地限制二氧化碳通过容器的外部。 从容器外部检测到由气体产生(CO2,NH2,H2S等)变化引起的指示剂介质的变化,介质中的挥发性酸产生或pH浓度的变化。