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    Device for the administration of powdered medicinal substances
    2.
    发明授权
    Device for the administration of powdered medicinal substances 失效
    粉状药物管理装置

    公开(公告)号：US5351683A

    公开(公告)日：1994-10-04

    申请号：US11785

    申请日：1993-02-01

    申请人： Paolo Chiesi ,  Paolo Ventura ,  Isabella Panza

    发明人： Paolo Chiesi ,  Paolo Ventura ,  Isabella Panza

    IPC分类号： A61M13/00 ,  A61M11/00 ,  A61M15/00

    CPC分类号： A61M11/002 ,  A61M15/0066 ,  A61M2202/064

    摘要： An inhaler for the local administration of powdered drugs to the respiratory tract. The inhaler includes a nozzle and a main body which itself defines a storage chamber for the medicinal substance, a dosing mechanism which supplies precisely measured doses of the drug and a dispensing system which pours the dose of the drug delivered into a collecting chamber. A cavity of the nozzle communicates with the collecting chamber through a central channel designed to reduce air flow resistance as much as possible. Lateral holes provided in the body of the inhaler allow for the passage of air from the outside. Upon inhalation, a negative pressure is created in the chamber in which the dose of powder delivered is collected, drawing an air inflow from the outside. The air flow is mixed with the medicinal substance particles and through the central channel, enters the cavity of the nozzle from where it is directly inhaled.

    摘要翻译： 一种吸入器，用于向呼吸道局部施用粉末药物。 吸入器包括一个喷嘴和一个主体，它本身限定了一个用于医药物质的储存室，一个定量给料机构，其提供精确测量的药物剂量，以及一个分配系统，其将递送到收集室中的药物的剂量倾倒。 喷嘴的空腔通过设计成尽可能减小气流阻力的中心通道与收集室连通。 设在吸入器主体中的侧向孔允许空气从外部通过。 吸入后，在其中收集粉末的粉末剂量的室中产生负压，从外部吸入空气。 空气流与药物颗粒混合并通过中心通道进入喷嘴的空腔，从那里直接吸入。