A dry powder inhaler for pulmonary or nasal use, employing capsulescontaining a dose of powder for inhalation, comprising two operatingcomponents and anoptional cover. Air is drawn by the patient via a mouthpiece or nosepiecewhich is incommunication with the capsule and travels via air paths through the deviceand throughthe capsule thereby dispersing and entraining the dose of powder. The capsuleis cut bycutting means located on one of the components, in a manner which eliminatesorminimizes capsule debris and minimizes powder leakage during use. The inhalerbody andcapsule cutting blades comprise a single operating component and they may bemanufactured in a single unitary step. The invention affords a very economicaland simpledevice for the delivery of pulmonary medicines.
