NASAL DELIVERY DEVICES
A nasal delivery device for and method of delivering particulate substance to the nasal airway of a subject, the delivery device comprising: a body assembly including a mouthpiece unit which includes a mouthpiece through which the subject in use exhales, and a substance-supply unit which is fluidly connected to the mouthpiece unit and actuatable to provide particulate substance for delivery to the nasal airway of the subject; wherein the body assembly is configured to receive a replaceable nosepiece unit which includes a nosepiece and contains a container containing particulate substance.
1 . A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
a body assembly including a mouthpiece unit which includes a mouthpiece through which the subject in use exhales, and a substance-supply unit which is fluidly connected to the mouthpiece unit and configured to receive a replaceable nosepiece unit which includes a nosepiece and contains a container containing particulate substance, wherein the substance-supply unit is actuatable to provide particulate substance for delivery to the nasal airway of the subject.
2 - 9 . (canceled)
10 . A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
a mouthpiece unit which includes a mouthpiece through which the subject in use exhales;
a nosepiece unit which includes a nosepiece for fitting to a nostril of the subject; and
a substance-supply unit which is configured to receive a container containing particulate substance and operable to provide a metered amount of substance in fluid communication with the mouthpiece and nosepiece units, such that an exhalation air flow delivered through the substance-supply unit entrains the substance.
11 - 24 . (canceled)
25 . A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
a body assembly including a mouthpiece unit which includes a mouthpiece through which the subject in use exhales, and a substance-supply unit which is fluidly connected to the mouthpiece unit and actuatable to provide particulate substance for delivery to the nasal airway of the subject;
wherein the body assembly is configured to receive a replaceable nosepiece unit which includes a nosepiece and contains a container containing particulate substance.
26 - 47 . (canceled)