Nasal devices
First Claim
1. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
- a mouthpiece through which a subject in use exhales;
a nosepiece for fitting to a nostril of the subject;
a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and
an aerosol interactor operable to interact with an aerosol spray during generation from the at least one nozzle such as at least to modify the particle size distribution of particles of the aerosol spray, wherein the aerosol interactor is configured such that operation thereof is actuated prior to actuation of the delivery unit.
5 Assignments
0 Petitions
Accused Products
Abstract
A nasal delivery device and method are provided for delivering substance to a nasal airway of a subject, in particular one of a liquid, as a suspension or solution, or a powder containing a medicament, especially systemic or topical pharmaceuticals, or a vaccine to the nasal airway of a subject. The delivery device is characterized by: a nosepiece for fitting to a nostril of a subject; a delivery unit including a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray as generated by the at least one nozzle.
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Citations
52 Claims
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1. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a mouthpiece through which a subject in use exhales; a nosepiece for fitting to a nostril of the subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray during generation from the at least one nozzle such as at least to modify the particle size distribution of particles of the aerosol spray, wherein the aerosol interactor is configured such that operation thereof is actuated prior to actuation of the delivery unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a nosepiece for fitting to a nostril of a subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray during generation from the at least one nozzle such as at least to modify the particle size distribution of particles of the aerosol spray, wherein the aerosol interactor comprises a flow director which includes at least one flow-directing channel downstream of the at least one nozzle for directing an interacting gas flow and delivering at least one interacting gas stream to interact with the aerosol spray, and wherein the at least one flow-directing channel has an annular outlet disposed about a delivery path of the aerosol spray and the at least one flow-directing channel is configured such as to direct the at least one interacting gas stream substantially orthogonally to the delivery path of the aerosol spray.
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15. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a nosepiece for fitting to a nostril of a subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray during generation from the at least one nozzle such as at least to modify the particle size distribution of particles of the aerosol spray, wherein the aerosol interactor comprises a flow director which includes at least one flow-directing channel downstream of the at least one nozzle for directing an interacting gas flow and delivering at least one interacting gas stream to interact with the aerosol spray, and wherein the at least one flow-directing channel has an annular outlet disposed about a delivery path of the aerosol spray and the at least one flow-directing channel is configured such as to direct the at least one interacting gas stream in a direction inclined to the delivery path of the aerosol spray and away from the nosepiece. - View Dependent Claims (16, 17)
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18. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a nosepiece for fitting to a nostril of a subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray during generation from the at least one nozzle such as at least to modify the particle size distribution of particles of the aerosol spray, wherein the aerosol interactor comprises a flow director which includes a plurality of flow-directing channels in spaced relation downstream of the at least one nozzle for directing an interacting gas flow and delivering a plurality of interacting gas streams to interact with the aerosol spray.
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19. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a mouthpiece through which a subject in use exhales; a chamber into which an aerosol spray is delivered; a nosepiece for fitting to a nostril of the subject and being in fluid communication with the chamber; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray into the chamber for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle and being moved by a gas flow delivered through the chamber. - View Dependent Claims (20, 21, 22, 23)
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24. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a nosepiece for fitting to a nostril of a subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject; and an aerosol interactor operable to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle, and the movable element comprises first and second rotatable elements coupled so as to rotate in unison, the first rotatable element including vanes oriented in one sense such as to be rotated in one sense by a gas flow thereover, and the second rotatable element being disposed downstream of the at least one nozzle and including vanes oriented in the other, opposite sense to the vanes of the first rotatable element such as to generate an interacting gas flow in an upstream direction towards the at least one nozzle on being rotated in the one sense by rotation of the first rotatable element. - View Dependent Claims (25)
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26. A nasal delivery device for delivering substance to a nasal airway of a subject, comprising:
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a nosepiece for fitting to a nostril of a subject; a delivery unit comprising a substance supply unit and a nozzle unit including at least one nozzle fluidly connected to the substance supply unit for generating an aerosol spray for delivery to a nasal airway of the subject, wherein the nozzle unit includes a tubular element which extends downstream of the at least one nozzle and includes a plurality of apertures for providing a plurality of flow paths therethrough; and an aerosol interactor operable to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle, and the aerosol interactor comprises a rotatable element disposed at a downstream end of the tubular element, the rotatable element including first, outer vanes oriented in one sense and disposed radially beyond the tubular element such that the rotatable element is rotated in one sense by a gas flow thereover, and second, inner vanes oriented in the other, opposite sense to the outer vanes such as to generate an interacting gas flow in an upstream direction towards the at least one nozzle with rotation of the rotatable element, which interacting gas flow is such as to interact with the aerosol spray and pass through the apertures in the tubular element.
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27. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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a subject exhaling through a mouthpiece; fitting a nosepiece to a nostril of the subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein operation of the aerosol interactor is actuated prior to actuation of the delivery unit. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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fitting a nosepiece to a nostril of a subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a flow director which includes at least one flow-directing channel downstream of the at least one nozzle, the at least one flow-directing channel having an annular outlet disposed about a delivery path of the aerosol spray, and wherein operation of the aerosol interactor comprises directing an interacting gas flow to deliver at least one interacting gas stream substantially orthogonally to the delivery path of the aerosol spray to interact with the aerosol spray.
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41. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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fitting a nosepiece to a nostril of a subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a flow director which includes at least one flow-directing channel downstream of the at least one nozzle, the at least one flow-directing channel having an annular outlet disposed about a delivery path of the aerosol spray, and wherein operation of the aerosol interactor comprises directing an interacting gas flow to deliver at least one interacting gas stream in a direction inclined to the delivery path of the aerosol spray and away from the nosepiece to interact with the aerosol spray. - View Dependent Claims (42, 43)
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44. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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fitting a nosepiece to a nostril of a subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a flow director which includes a plurality of flow-directing channels in spaced relation downstream of the at least one nozzle, wherein operation of the aerosol interactor comprises directing an interacting gas flow to deliver a plurality of interacting gas streams to interact with the aerosol spray.
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45. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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a subject exhaling through a mouthpiece; fitting a nosepiece to a nostril of the subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle into a chamber in fluid communication with the nosepiece for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle; and the step of operating the aerosol interactor comprises the step of; delivering a gas flow through the chamber to move the movable element downstream of the at least one nozzle such as to interact with the aerosol spray. - View Dependent Claims (46, 47, 48, 49)
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50. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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fitting a nosepiece to a nostril of a subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle, and the movable element comprises first and second rotatable elements coupled so as to rotate in unison, the first rotatable element including vanes oriented in one sense such as to be rotated in one sense by a gas flow thereover, and the second rotatable element being disposed downstream of the at least one nozzle and including vanes oriented in the other, opposite sense to the vanes of the first rotatable element such as to generate an interacting gas flow in an upstream direction towards the at least one nozzle on being rotated in the one sense by rotation of the first rotatable element, and the step of operating the aerosol interactor comprises the step of; driving a gas flow over the first rotatable element such as to cause rotation of the same and thereby rotate the second rotatable element such as to generate an interacting gas flow in an upstream direction towards the at least one nozzle which interacts with the aerosol spray. - View Dependent Claims (51)
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52. A method of delivering substance to a nasal airway of a subject, comprising the steps of:
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fitting a nosepiece to a nostril of a subject; actuating a delivery unit to generate an aerosol spray from at least one nozzle for delivery to a nasal airway of the subject, wherein the step of actuating the delivery unit to generate an aerosol spray comprises the step of; actuating the delivery unit to generate an aerosol spray from at least one nozzle into a tubular element which extends downstream of the at least one nozzle, the tubular element including a plurality of apertures for providing a plurality of flow paths therethrough; and operating an aerosol interactor to interact with an aerosol spray as generated by the at least one nozzle, wherein the aerosol interactor comprises a movable element disposed downstream of the at least one nozzle, and the step of operating the aerosol interactor comprises the steps of; moving a rotatable element disposed at a downstream end of the tubular element, the rotatable element including first, outer vanes oriented in one sense and disposed radially beyond the tubular element such that the rotatable element is rotated in one sense by a gas flow thereover, and second, inner vanes oriented in the other, opposite sense to the outer vanes such as to generate an interacting gas flow in an upstream direction towards the at least one nozzle with rotation of the rotatable element; and driving a gas flow over the outer vanes of the rotatable element to cause rotation of the same and thereby cause the inner vanes of the rotatable element to generate an interacting gas flow in an upstream direction towards the at least one nozzle, which interacting gas flow is such as to interact with the aerosol spray and pass through the apertures in the tubular element.
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Specification