| abstract |
A device for delivery of a substance to an external auditory canal and/or nasal cavity can include a reservoir, an aerosolizing mechanism, a nozzle, and a retaining member. The reservoir can contain the substance. The aerosolizing mechanism can suspend a dose of the substance, as particulates for example, in a gas. The nozzle can include a lumen, an outer surface, and a distal end. The lumen can be sized to permit movement of the gas and particulates therethrough. The retaining member can be configured to be attached to the nozzle proximate the distal end of the nozzle, projecting laterally from the lumen of the nozzle, shaped to engage the ear and/or nostril, and can include a passage therethrough to allow passage of gas and to inhibit passage of at least some of the particulates. |