Nasal delivery

a delivery device and nasal technology, applied in the direction of inhalators, etc., can solve the problems of significant obstacles to reliable and cost-efficient delivery, snoring and sleep disturbance, and the effect in the liver, and achieve the effect of increasing deposition

Inactive Publication Date: 2014-06-19
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0070]The valve can have a filter to prevent the particles from escaping to the atmosphere. Using large particles, such as from about 100 μm to about 200 μm, will also avoid or at least reduce this problem.
[0071]By providing a relatively-large distance between the point of emission, which is preferably in the upper member, and the point of exit, which is preferably in the lower arm, increased deposition can be achieved.

Problems solved by technology

As will be understood, nasal congestion impedes nasal breathing and promotes oral breathing, leading to snoring and sleep disturbance.
For such substances, the metabolism in the intestines and the first-pass-effect in the liver represent significant obstacles for reliable and cost-efficient delivery.

Method used

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Examples

Experimental program
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first embodiment

[0147]FIGS. 2 to 6 illustrate a nasal delivery device in accordance with the present invention.

[0148]The delivery device comprises a housing 15, a nosepiece assembly 17 for fitting in a nasal cavity of a subject, and a mouthpiece unit 19 through which the subject exhales to actuate the delivery device.

[0149]The nosepiece assembly 17 comprises first and second nosepiece units 20, 24 which are movably coupled, in this embodiment pivotally coupled, to the housing 15 and are operable by the subject, in this embodiment by gripping the same between one of the fingers and the thumb, to expand the nasal cavity of the subject in the vertical or sagittal plane.

[0150]In this embodiment the first nosepiece unit 20 comprises a lower, guide element 26 which acts to guide the nosepiece assembly 17 when fitted in the nasal cavity of the subject, and an actuating arm 28 which extends rearwardly of the guide element 26 and is operated by the subject, in this embodiment by gripping the same, to positi...

second embodiment

[0186]FIGS. 8 to 13 illustrate a nasal delivery device in accordance with the present invention.

[0187]The delivery device comprises a housing 115, a nosepiece assembly 117 for fitting in a nasal cavity of a subject, and a mouthpiece unit 119 through which the subject exhales to actuate the delivery device.

[0188]The nosepiece assembly 117 comprises a nosepiece 120 which is attached to the housing 115 and defines a delivery channel 123 which is in fluid communication with the mouthpiece unit 119 such that an air flow is delivered into and through the nasal airway of the subject on exhalation by the subject through the mouthpiece unit 119, and an outlet unit 124 which is disposed within the nosepiece 120 for delivering substance into the nasal airway of the subject.

[0189]In this embodiment the nosepiece 120 is frusto-conical in shape and semi-flexible, here formed of a semi-soft plastics material, such as to expand in the vertical axis when compressed in the horizontal axis.

[0190]In th...

third embodiment

[0219]FIGS. 14 to 20 illustrate a nasal delivery device in accordance with the present invention.

[0220]The delivery device comprises a housing 215, a nosepiece assembly 217 for fitting in a nasal cavity of a subject, and a mouthpiece unit 219 through which the subject exhales to actuate the delivery device.

[0221]The nosepiece assembly 217 comprises a nosepiece 220 which is attached to the housing 115 and defines a delivery channel 223 which is in fluid communication with the mouthpiece unit 219 such that an air flow is delivered into and through the nasal airway of the subject on exhalation by the subject through the mouthpiece unit 219, and an outlet unit 224 which is disposed within the nosepiece 220 for delivering substance into the nasal airway of the subject.

[0222]In this embodiment, as particularly illustrated in FIGS. 15 to 17, the nosepiece 220 is generally frusto-conical in shape and includes a tip element 225 of asymmetric, elongate section, in having a dimension d1 in a f...

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Abstract

A nasal delivery device for and method of delivering substance to a nasal cavity of a subject, the delivery device comprising: a nosepiece unit including a nosepiece for fitting to a nostril of a subject and a nozzle through which substance is in use delivered, preferably substantially axially to a longitudinal axis of the nosepiece, to the respective nasal cavity, wherein at least a tip element of the nosepiece has, at least in one configuration, an elongate lateral section which has a longer dimension in a first, sagittal direction than a second direction orthogonal to the sagittal direction, such that, when the nosepiece is inserted in the nasal cavity of the subject, the longer dimension of the nosepiece acts to engage lower and upper surfaces of the nasal cavity, preferably at the nasal valve, and expand the same in the sagittal plane; and a delivery unit for delivering substance through the nozzle of the nosepiece.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation application of U.S. application Ser. No. 12 / 281,894, filed on Jun. 12, 2009, which is a U.S. national phase application of PCT / IB07 / 01709, filed on Mar. 6, 2007, which in turn claims priority to GB 0604444.0, filed on Mar. 6, 2006.FIELD OF INVENTION[0002]The present invention relates to a nasal delivery device for and a method of delivering a substance, 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.BACKGROUND OF THE INVENTION[0003]Referring to FIG. 1(a), the nasal airway 1 comprises the two nasal cavities separated by the nasal septum, which airway 1 includes numerous ostia, such as the paranasal sinus ostia 3 and the tubal ostia 5, and olfactory cells, and is lined by the nasal mucosa. The nasal airway 1 can communicate with the nasopharynx 7, the oral cavity 9...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M15/08A61M15/00
CPCA61M15/085A61M15/0098A61M15/0021
Inventor DJUPESLAND, PER GISLE
Owner OPTINOSE AS
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