INHALATOR

摘要

There is described a delivery device which comprises a reservoir, a delivery passage for the delivery of material and a metering member characterised in that the delivery device is provided with a plurality of reservoirs and that the metering member is provided with a plurality of measuring cups adapted to transfer one or more measured doses of material from one or more of the reservoirs to the delivery passage. There is also described a method of measuring blood oxygen saturation an inhaler, e.g. a dry powder inhaler which is suitable for delivery of a combination of medicaments. A method of administering a dry powder and a method and especially a method of treatment of a patient with a bronchial disorder are also described.