| abstract |
A delivery device for and method of delivering substance to a nasal airway of a subject, the delivery device comprising: at least one nosepiece unit ( 21 ) for insertion into one nasal cavity of a subject and comprising a nosepiece ( 25 ) for fitting to the respective nostril of the subject; and at least one delivery unit ( 23 ) which is operative to deliver a substance through the at least one nosepiece unit into the one nasal cavity of the subject, wherein the at least one delivery unit includes a substance supply unit ( 27 ) for delivering a substance and an actuation unit ( 29 ) which is operable to actuate the substance supply unit, either automatically or manually, in response to nasal exhalation or at least attempted nasal exhalation by the subject. |