Nasal delivery devices
First Claim
Patent Images
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.
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Abstract
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.
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Citations
11 Claims
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1. A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
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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. - View Dependent Claims (2)
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3. A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
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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 not actuatable, and a second, released configuration when a nosepiece unit is fitted to the body assembly, in which the actuation mechanism is actuatable; wherein the interlock mechanism comprises an interlock member which is movably disposed between locking and released positions and normally biased to the locking position.
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4. A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
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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, 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 not actuatable, and a second, released configuration when a nosepiece unit is fitted to the body assembly, in which the actuation mechanism is actuatable, and a valve unit which is operable between a first, closed configuration in which a fluid communication path with the mouthpiece is closed, and a second, open configuration in which the fluid communication path is open, and the interlock mechanism is configured to lock the valve unit in the closed configuration when the interlock mechanism is in the locking configuration and allow operation of the valve unit when the interlock mechanism is in the released configuration. - View Dependent Claims (5, 6)
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7. A nasal delivery device for delivering particulate substance to the nasal airway of a subject, the delivery device comprising:
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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, 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 in a locked configuration to prevent operation of the actuation mechanism, and a second, released configuration when a nosepiece unit is fitted to the body assembly, in which the actuation mechanism is actuatable. - View Dependent Claims (8, 9, 10, 11)
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Specification