| 摘要 |
A nasal delivery device for and a method of delivering substance to a nasal airway of a subject, the delivery device comprising: a nosepiece 77 for fitting to a nostril of a subject, the nosepiece including a first delivery outlet 82 through which substance is in use delivered to the nasal airway of the subject, and at least one second delivery outlet 83 through which at least one gas flow, separate to an exhalation breath of the subject, is in use delivered to the nasal airway of the subject; a delivery unit 85 for delivering substance through the first delivery outlet of the nosepiece; and a gas supply unit 87 for supplying a gas flow through the at least one second delivery outlet of the nosepiece. The second outlet 83 maybe annular and surround the first outlet 82. The substance maybe a powder, a liquid or an aerosol or a solution or a suspension. |
