INHALATION DEVICE FOR PRODUCING A DRUG AEROSOL
    2.
    发明申请
    INHALATION DEVICE FOR PRODUCING A DRUG AEROSOL 审中-公开
    用于生产药物气溶胶的吸入装置

    公开(公告)号:WO2004050139A3

    公开(公告)日:2005-09-15

    申请号:PCT/US0332803

    申请日:2003-10-16

    Abstract: A device for delivering a drug by inhalation is disclosed. The device includes a body defining an interior flow-through chamber having upstream and downstream chamber openings, and a drug supply unit contained within the chamber for producing, upon actuation, a heated drug vapor in a condensation region of the chamber. Gas drawn through the chamber region at a selected gas-flow rate is effective to form drug condensation particles from the drug vapor having a selected MMAD between 0.02 and 0.1 MMAD or between 1 and 3.5 gm. A gas-flow control valve disposed upstream of the unit functions to limit gas-flow rate through the condensation region to the selected gas-flow rate. An actuation switch in the device activates the drug-supply unit, such that the drug-supply unit can be controlled to produce vapor when the gas-flow rate through the chamber is at the selected flow rate.

    Abstract translation: 公开了一种通过吸入传送药物的装置。 该装置包括限定具有上游和下游室开口的内部流通室的主体,以及容纳在该室内的药物供应单元,用于在致动时产生在该室的冷凝区域中的加热的药物蒸气。 以选择的气体流速通过腔室区域抽吸的气体有效地从具有0.02至0.1MMAD的选择的MMAD或1至3.5gm之间的药物蒸气形成药物凝结颗粒。 设置在单元上游的气体流量控制阀用于将通过冷凝区域的气体流量限制到所选择的气体流量。 装置中的致动开关激活药物供应单元,使得当通过腔室的气体流量处于所选择的流速时,可以控制药物供应单元产生蒸汽。

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