Nasal delivery devices

摘要

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 (3) including a mouthpiece unit (9) 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 (5) which includes a nosepiece and contains a container containing particulate substance.

主权项

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, 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, and an actuation mechanism which is manually actuatable by the subject to open the container; wherein the substance-supply unit is actuatable to provide particulate substance for delivery to the nasal airway of the subject, and includes an interlock mechanism which adopts a first, locking configuration when a nosepiece unit is not fitted to the body assembly, in which the actuation mechanism is locked, and a second, released configuration when a nosepiece unit is fitted to the body assembly, in which the actuation mechanism is actuatable.