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    • 5. 发明申请
    • POWDER INHALER
    • 粉末吸入器
    • WO2004012801A8
    • 2004-04-29
    • PCT/EP0308432
    • 2003-07-30
    • CHIESI FARMA SPAPINON JOHNSHIRGAONKAR SAMEERSMITH CHRISTOPHER JAMESBURGE SIMONMIDDLETON MAX WILLIAMAHERN DAVIDSARKAR MATTHEW NEILARLETT BENLYE EMMA LESLEYSMITH SIMON
    • PINON JOHNSHIRGAONKAR SAMEERSMITH CHRISTOPHER JAMESBURGE SIMONMIDDLETON MAX WILLIAMAHERN DAVIDSARKAR MATTHEW NEILARLETT BENLYE EMMA LESLEYSMITH SIMON
    • A61M15/00G06M1/04G06M1/24
    • A61M15/0065A61M15/0026A61M15/0075A61M2202/062A61M2202/064A61M2206/16G06M1/04G06M1/045G06M1/248
    • A powder inhaler comprises a container (7) for storing a powdered medicament, a metering member (15) having a dosing recess (18) to be filled with a dose of the powdered medicament, and a mouthpiece (3) being in communication with an inhalation channel (27) of the powder inhaler. Furthermore, the powder inhaler comprises a protective member (19) which is slidingly moveable on the metering member (15) between a closed position, in which it at least covers the dosing recess (18) of the metering member (15) if the metering member (15) is in an inhalation position, and an open position, in which it exposes the dosing recess (18) thereby enabling inhalation of the dose of the powdered medicament contained in the dosing recess (18). The protective member (19) is preferably coupled to an inhalation actuated mechanism (21-23) in such a manner that the inhalation actuated mechanism (21-23) moves the protective member (19) from its closed position to its open position only if there is an inhalation suction force exerted by a user which exceeds a predetermined level. This prevents the dose contained in the dosing recess (18) from falling out of the dosing recess, unless there is no inhalation process initiated by the user. Therefore, the powder inhaler can also be operated reliably upside down. Furthermore, a deagglomerator arrangement (cyclone), which may be incorporated in such a powder inhaler, is proposed which comprises a vortex chamber (73) having a diameter between 6 mm and 8 mm, preferably 8 mm.
    • 粉末吸入器包括用于储存粉末药物的容器(7),具有待填充剂量的粉末药物的计量凹部(18)的计量构件(15),以及与一个 粉末吸入器的吸入通道(27)。 此外,粉末吸入器包括保护构件(19),该保护构件可在计量构件(15)之间在关闭位置之间滑动运动,在闭合位置中,其至少覆盖计量构件(15)的计量凹部(18),如果计量 构件(15)处于吸入位置,并且处于打开位置,在所述打开位置,所述打开位置暴露所述计量凹部(18),从而能够吸入所述剂量凹部(18)中所含的粉末状药物的剂量。 保护构件(19)优选地以这样的方式联接到吸入致动机构(21-23),使得吸入致动机构(21-23)仅当保护构件(19)从其关闭位置移动到其打开位置时才移动 存在超过预定水平的用户施加的吸入吸力。 这防止剂量凹陷(18)中包含的剂量从剂量凹槽中脱落,除非由用户发起吸入过程。 因此,粉末吸入器也可以可靠地上下颠倒地操作。 此外,提出了可以结合在这种粉末吸入器中的解聚器装置(旋风分离器),其包括直径在6mm和8mm之间,优选为8mm的涡流室(73)。