Nasal devices
AssigneeOptiNose AS
InventorPer Gisle Djupesland
Life of this patent
Estimating the term…
Abstract
A nasal delivery device (11) for delivering substance to a nasal airway (1) of a subject, comprising: first and second nosepiece units (17, 19), each including a nosepiece (21, 23) for fitting to respective nostrils of a subject; at least one substance supply unit (13, 15) for supplying substance for delivery to the nasal airway (1) of the subject; and a valve unit (35, 37) for selectively fluidly connecting the at least one substance supply unit (13, 15) alternately to respective ones of the nosepiece units (17, 19).
Claims34
A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
- first and second nosepiece units, each including a nosepiece for fitting to respective nostrils of a subject;
- at least one substance supply unit for supplying a metered dose of substance for delivery to the nasal airway of the subject;
- a valve unit for selectively fluidly connecting the at least one substance supply unit alternately to respective ones of the nosepiece units, the valve unit configured to alternately (i) establish communication between the at least one substance supply unit and the first nosepiece unit and (ii) establish communication between the at least one substance supply unit and the second nosepiece unit;
- and
- a mouthpiece through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject during delivery of substance.
A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
- a mouthpiece configured to receive an exhalation breath from the subject to cause closure of the oropharyngeal velum of the subject;
- at least one delivery unit for delivering a metered dose of substance to a nasal airway of the subject on exhalation by the subject;
- and
- an exogenous gas supply unit for supplying a gas flow into the nasal airway of the subject and configured to provide an alternating pressure in the nasal airway of the subject during the exhalation breath.
A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
- a mouthpiece configured to receive an exhalation breath from the subject to cause closure of the oropharyngeal velum of the subject;
- at least one delivery unit for delivering a metered dose of substance to a nasal airway of the subject on exhalation by the subject;
- and
- an exogenous gas supply unit configured to alternately deliver and withdraw a volume of exogenous gas entraining the substance through the nasal airway of the subject during the exhalation breath, such as to cause the entrained substance to be flushed repeatedly through the nasal airway in alternate directions.
Dependencies are inferred from the claim text.