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    • 118. 发明公开
    • DEVICE AND METHOD FOR DETECTING MICROORGANISMS
    • VORRICHTUNG UND VERFAHREN ZUM NACHWEIS VON MIKROORGANISMEN
    • EP0837948A4
    • 2004-05-19
    • EP96918025
    • 1996-06-04
    • BIO MERIEUX INC
    • READ KAREN ATROGDON DAVID ETHORPE THURMAN CRONSICK CHRISTOPHER SJEFFREY SCOTT R
    • C12M1/24C12M1/34C12Q1/04C12Q1/22G01N21/25C12M1/04
    • 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.
    • 一种用于检测样本中微生物存在的方法和可密封的可消毒的容器(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)。 其上具有不透气的可移除密封件(32)的透气膜(31)设置在容器的壁中。 如果待检测的微生物是厌氧生物体,则不透气的密封件(32)保留就位。 如果待检测的微生物是有氧生物体,则不透气的密封件(32)被移除以允许氧气进入容器。 在一个优选实施例中,透气膜(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外部。 从容器外部检测由于气体产生(CO 2,NH 2,H 2 S等),挥发性酸生成或培养基中的pH浓度变化而导致的指示剂介质的变化。