| 摘要 |
A fluid dispenser device comprising: at least one predosed reservoir ( 10 ) that is hermetically sealed and that contains a single dose of powder; an expulsion channel ( 20 ) that is terminated by a mouthpiece; and a reservoir opening system ( 30 ), each reservoir ( 10 ) including a closure layer ( 12 ) that is suitable for being pierced and/or torn by said opening system ( 30 ) so as to enable the powder that is contained in said reservoir ( 10 ) to be expelled through said expulsion channel ( 20 ), said reservoir opening system ( 30 ) comprising at least two piercer elements ( 31 ) that are actuated so as to create at least two distinct openings ( 25, 26 ) in said closure layer ( 12 ), forming at least one inlet passage ( 25 ) for the flow of gas, in particular air, and at least one outlet passage ( 26 ) for the powder entrained by said flow of gas, and said device including an inhalation trigger system ( 50 ) that creates a flow of gas in said expulsion channel ( 20 ) only when a user inhales at or above a predetermined inhalation threshold. |
