Dry powder inhaler
    1.
    发明授权
    Dry powder inhaler 有权
    干粉吸入器

    公开(公告)号:US06983748B2

    公开(公告)日:2006-01-10

    申请号:US10399913

    申请日:2001-10-26

    IPC分类号: A61M15/00

    摘要: A device for delivering a powdered medicament by inhalation comprises an air inlet passage having low pressure-drop and low turbulence for stabilizing air flow before aerosolization, a dosing cup in the region of reduced air velocity to delay aerosolization, a high pressure drop throat to generate a high velocity flow, a rapidly expanding diverging passage to create a free jet of air with high turbulence and an outlet passage having large cross-sectional area to control the rate of dissipation of the free jet. The device is simple yet capable of consistently providing uniform and effective powder aerosolization and deagglomeration over a variety of patient inhalation profiles.

    摘要翻译: 用于通过吸入输送粉末药物的装置包括空气入口通道,其具有低压降和低湍流,用于在气雾化之前稳定空气流,在减小空气速度的区域中的计量杯以延迟气雾化,产生高压降喉 高速流动,快速扩张的扩张通道以产生具有高湍流的空气的自由射流和具有大横截面面积的出口通道以控制自由射流的耗散速率。 该装置简单,但能够持续提供均匀有效的粉雾雾化和各种患者吸入曲线上的解聚。