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1.发明授权Powder inhaler having dispersing, discharge, and dwell-time chambers, along with an acceleration channel 失效具有分散，排出和停留时间的粉末吸入器以及加速通道
公开(公告)号：US5435301A
公开(公告)日：1995-07-25
申请号：US153708
申请日：1993-11-17
CPC分类号： A61M15/0065 , A61M15/0015 , A61M2202/064 , A61M2206/16
摘要： The powder inhaler is based on a supply container (3) for the drug, which supply container is partially or completely closed off at its lower end by a rotatable or displaceable, manually actuated metering plate (4) for the repeated reception and delivery of a predetermined, reproducible quantity of the drug from the container (3), and of a mouthpiece (14) for inhaling, upstream of which a dispersing chamber (12) is connected. The metering plate (4) is provided with at least one depression (5) which is filled with the drug on actuation of the inhaler. Seen in the flow direction, an acceleration channel is arranged ahead of the dispersing chamber (12), which acceleration channel (8) partially covers the metering plate (4) with part of its longitudinal surface and opens out tangentially into a cylindrical dwell-time chamber (9). The dwell-time chamber (9) is, in turn, connected via a central outlet (10) of smaller diameter than the cylindrical dwell-time chamber (9) to a circular discharge chamber (11 ) which the dispersing chamber ( 12) adjoins tangentially.
摘要翻译： 粉末吸入器基于用于药物的供应容器（3），其供应容器在其下端部分或完全地通过可旋转或可位移的手动致动计量板（4）部分或完全封闭，用于重复接收和递送 来自容器（3）的预定量的可重复使用的药物和用于吸入的吸口（14），其上连接有分散室（12）。 计量板（4）设置有至少一个在吸入器致动时填充有药物的凹陷（5）。 在流动方向上看到，加速通道布置在分散室（12）的前方，该加速通道（8）部分地覆盖计量板（4），其部分纵向表面以切向方式打开成圆柱形停留时间 室（9）。 停留时间室（9）又通过比圆柱形停留时间室（9）更小直径的中心出口（10）连接到分散室（12）邻接的圆形排出室（11） 切向
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