发明名称 POWDER INHALER
摘要 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 inhal er comprises a protective member (19) which is slidingly moveable on the meteri ng member (15) between a closed position, in which it at least covers the dosin g 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 medicame nt contained in the dosing recess (18). The protective member (19) is preferabl y coupled to an inhalation actuated mechanism (21-23) in such a manner that th e 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 th e 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 incorporat ed 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.
申请公布号 CA2494064(A1) 申请公布日期 2004.02.12
申请号 CA20032494064 申请日期 2003.07.30
申请人 CHIESI FARMACEUTICI S.P.A. 发明人 SHIRGAONKAR, SAMEER;PINON, JOHN;AHERN, DAVID;BURGE, SIMON;MIDDLETON, MAX WILLIAM;SMITH, SIMON;SMITH, CHRISTOPHER JAMES;ARLETT, BEN;LYE, EMMA LESLEY;SARKAR, MATTHEW NEIL
分类号 A61M15/00;G06M1/04;G06M1/24;(IPC1-7):A61M15/00 主分类号 A61M15/00
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