Patent ID: 7708014

Claim:
An inhalation device for transpulmonary administration comprising: a housing; a mouthpiece provided at one end of the housing; a chamber accommodated in the housing containing a pharmaceutical composition in non-powder, freeze-dried form which is pulverized into fine particles by an air-generated impact for dispersal in air; an air inlet flow path, for introducing to the chamber outside air and for injecting outside air toward the pharmaceutical composition to apply an air-generated impact to the pharmaceutical composition as a result of inhalation by a user; an inhalation flow path having a suction port located inside the chamber to inhale the pulverized pharmaceutical composition; and an auxiliary flow path for inhaling outside air which does not flow via the chamber, the auxiliary flow path opening around the inhalation flow path in the direction of the air flow of the inhalation flow path such that the auxiliary air flowing out from the auxiliary flow path does not disturb the air flow of the inhalation flow path.