申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP1688134A2
公开(公告)日:2006-08-09
A dry powder inhaler for transpulmonary administration used for making a freeze-dried composition that has been housed in non-powder form in a vessel into fine particles by an air impact, and administering the resulting fine particles to a user by inhalation,
comprising a needle part having an air jet flow path, a needle part having a discharge flow path, air pressure-feeding means for feeding air into the air jet flow path of said needle part, and an inhalation port that communicates with the discharge flow path of said needle part,
and being constituted such that a stopper that seals up said vessel is pierced by said needle parts, thus communicating the air jet flow path and the discharge flow path with the inside of said vessel, and air is jetted into said vessel through said air jet flow path using said air pressure-feeding means, thus making said freeze-dried composition into fine particles by the impact of the jetted air, and discharging the fine particles from the inhalation port via said discharge flow path.
一种用于跨肺给药的干粉吸入器,用于通过空气冲击将容器中的非粉末状冻干成分制成细小颗粒,并通过吸入将所得细小颗粒提供给使用者、
包括一个具有空气喷射流路的针头部件、一个具有排放流路的针头部件、用于将空气送入所述针头部件的空气喷射流路的空气压力供给装置,以及一个与所述针头部件的排放流路相通的吸入口、
其构成为,密封所述容器的塞子被所述针状部件刺穿,从而使空气喷射流路和排出流路与所述容器内部相通,利用所述空气压力供给装置通过所述空气喷射流路向所述容器喷射空气,从而通过喷射空气的冲击力将所述冻干成分制成细小颗粒,并通过所述排出流路将细小颗粒从吸入口排出。