An inhalation device for self-administration to a patient powdered medicaments contained in a capsule. A chamber receives a capsule containing a powdered medicament. The chamber has a nozzle through which air from the chamber can be inhaled and the air inlet apertures leading into the chamber and so...http://www.google.fr/patents/US4116195?utm_source=gb-gplus-shareBrevet US4116195 - Device for dispensing medicaments
