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    • 5. 发明申请
    • VENTILATOR CIRCUIT AND THE METHOD FOR THE USE THEREOF
    • 通风机电路及其使用方法
    • WO2004071549A2
    • 2004-08-26
    • PCT/IB2004/000333
    • 2004-02-10
    • TRUDELL MEDICAL INTERNATIONAL
    • GRYCHOWSKI, Jerry, R.FOLEY, Martin, P.DUNN, Michael, S.
    • A61M
    • A61M16/208A61M15/0015A61M15/0018A61M15/0086A61M15/009A61M16/01A61M16/08A61M16/0833
    • A ventilator circuit (2) for use in administering medication to a patient includes a chamber housing (4) defining an interior space (6) and having an input end (8) and an output end (10) and a one-way inhalation valve (56) positioned upstream of the interior space (6). The one-way inhalation valve (56) is operative to permit a flow of medication into the interior space (6) of the chamber housing (4). An inhalation conduit (88) communicates with the output end (10) of the chamber (4) and is adapted to transmit the medication to the patient. An exhaust conduit (18) is connected to the inhalation conduit (68) and a one-way exhaust valve (78) is located in the exhaust conduit (18). The one­ way exhaust valve (78) is adapted to prevent a backflow of gas from the exhaust conduit (18) into the inhalation conduit (58). A method of administering a medication to a patient includes transmitting oxygen from a gas source through a holding chamber (4) and an inhalation conduit (88) to the patient during an inhalation sequence and introducing the medication into the holding chamber (4). The method further includes preventing a substantial transmission of an exhaust gas into the holding chamber (4) during an exhalation sequence and transmitting a substantial portion of the exhaust gas into the exhaust conduit (18) during exhalation. The method also includes preventing a substantial transmission of the exhaust gas from the exhaust conduit (18) into the inhalation conduit during subsequent inhalation sequences.
    • 用于向患者施用药物的呼吸机回路(2)包括限定内部空间(6)并具有输入端(8)和输出端(10)的腔室壳体(4)和单向吸入阀 (56)定位在所述内部空间(6)的上游。 单向吸入阀(56)可操作以允许药物流入腔室(4)的内部空间(6)。 吸入管道(88)与腔室(4)的输出端(10)连通并适于将药物传送给患者。 排气管道(18)连接到吸入管道(68),并且单向排气阀(78)位于排气管道(18)中。 单向排气阀(78)适于防止气体从排气管道(18)回流到吸入管道(58)中。 向患者施用药物的方法包括在吸入顺序期间将氧从气体源通过保持室(4)和吸入管道(88)传输到患者,并将药物引入到保持室(4)中。 该方法还包括防止在呼气顺序期间废气进入保持室(4)的实质性传输,并且在呼气期间将废气的大部分传送到排气管道(18)中。 该方法还包括防止废气在随后的吸入序列期间从排气管道(18)进入吸入管道的实质性传输。