Nasal devices
First Claim
Patent Images
1. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
- a delivery unit configured to deliver a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject, the delivery unit including (i) a nosepiece adapted to fit the one nostril of the subject and (ii) a mouthpiece configured to cause substantial closure of the subject'"'"'s oropharyngeal velum when the subject exhales through the mouthpiece; and
a flow resistor unit adapted to fit to the other nostril of the subject, the flow resistor unit including a progressive resistor configured to progressively provide an increasing flow resistance to the delivered flow when the device is in use by the subject.
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Abstract
A nasal delivery device for and a method of delivering a substance to a nasal cavity of a subject, the delivery device comprising: a delivery unit for delivering a flow entraining a substance to one nostril of a subject, the delivery unit including a nosepiece for fitting to a nostril of the subject; and a flow resistor unit for fitting to the other nostril of the subject, the flow resistor unit including a progressive resistor for progressively providing an increasing flow resistance to the delivered flow.
98 Citations
29 Claims
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1. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
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a delivery unit configured to deliver a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject, the delivery unit including (i) a nosepiece adapted to fit the one nostril of the subject and (ii) a mouthpiece configured to cause substantial closure of the subject'"'"'s oropharyngeal velum when the subject exhales through the mouthpiece; and a flow resistor unit adapted to fit to the other nostril of the subject, the flow resistor unit including a progressive resistor configured to progressively provide an increasing flow resistance to the delivered flow when the device is in use by the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
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a delivery unit for delivering a flow entraining a substance to one nostril of a subject, the delivery unit including a mouthpiece through which the subject in use exhales, a nosepiece for fitting to the one nostril of the subject and a flow channel fluidly connecting the nosepiece and the mouthpiece, whereby exhaled air from an exhalation breath is delivered through the nosepiece; and a flow resistor unit for fitting to the other nostril of the subject, the flow resistor unit including a progressive resistor for progressively providing an increasing flow resistance to the delivered flow.
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20. A method of delivering a substance to a nasal cavity of a subject, comprising the steps of:
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exhaling through a mouthpiece configured to cause substantial closure of the subject'"'"'s oropharyngeal velum when the subject exhales through the mouthpiece; delivering a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject; and progressively providing an increasing flow resistance to the delivered flow. - View Dependent Claims (21, 22)
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23. A method of delivering a substance to a nasal cavity of a subject, comprising the steps of:
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providing a mouthpiece through which the subject exhales; providing a nosepiece to one nostril of the subject, the nosepiece being fluidly connected to the mouthpiece, whereby exhaled air from an exhalation breath is delivered through the nosepiece; the subject exhaling through the mouthpiece to deliver an air flow entraining a substance through the nosepiece to the one nostril of the subject; and progressively providing an increasing flow resistance to the delivered flow.
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24. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
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a delivery unit configured to deliver a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject, the delivery unit including (i) a nosepiece adapted to fit the one nostril and (ii) a mouthpiece configured to cause substantial closure of the subject'"'"'s oropharyngeal velum when the subject exhales through the mouthpiece; and a flow resistor unit adapted to fit to the other nostril of the subject, the flow resistor unit including a progressive resistor configured to progressively provide an increasing flow resistance to the delivered flow. - View Dependent Claims (25)
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26. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
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a delivery unit configured to deliver a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject, the delivery unit including (i) a nosepiece adapted to fit the one nostril of the subject and (ii) a mouthpiece configured to cause substantial closure of the subject'"'"'s oropharyngeal velum when the subject exhales through the mouthpiece; and a flow resistor unit adapted to fit to the other nostril of the subject, the flow resistor unit including means for progressively providing an increasing flow resistance to the delivered flow. - View Dependent Claims (27)
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28. A method of delivering a substance to a nasal cavity of a subject, comprising the steps of:
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providing a delivery unit configured to deliver a flow entraining a substance to one nostril of a subject, around the nasal septum, and out the other nostril of the subject, the delivery unit including (i) a nosepiece adapted to fit the one nostril and (ii) a mouthpiece configured such that when the subject exhales through the mouthpiece, the mouthpiece causes substantial closure of the subject'"'"'s oropharyngeal velum; providing a flow resistor unit adapted to fit to the other nostril of the subject, the flow resistor unit including a progressive resistor configured to progressively provide an increasing flow resistance to the delivered flow; and delivering the substance to the nasal cavity of a subject using the delivery unit and the flow resistor. - View Dependent Claims (29)
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Specification