Nasal delivery devices
First Claim
1. A nasal delivery device for delivering substance to a nasal cavity of a subject, the delivery device comprising:
- a container-receiving unit comprising a container chamber for receiving a substance-containing container which contains substance to be delivered to the nasal cavity of the subject, the container chamber including an inlet and an outlet;
a nosepiece unit including a nosepiece for fitting to a nasal cavity of the subject, the nosepiece being in fluid communication with the outlet of the container chamber; and
a mouthpiece unit including a mouthpiece in fluid communication with the inlet of the container chamber and through which the subject in use exhales, so as to entrain substance from the container and deliver the same through the nosepiece, and an air chamber which fluidly connects the mouthpiece to the inlet of the container chamber, wherein the air chamber incorporates a temperature regulator for regulating a temperature of an air flow as exhaled therethrough.
4 Assignments
0 Petitions
Accused Products
Abstract
A nasal delivery device for and method of delivering substance to a nasal cavity of a subject, the delivery device comprising: a container-receiving unit comprising a container chamber for receiving a substance-containing container which contains substance to be delivered to the nasal cavity of the subject, the container chamber including an inlet and an outlet; a nosepiece unit including a nosepiece for fitting to a nasal cavity of the subject and being in fluid communication with the outlet of the container chamber; a mouthpiece unit including a mouthpiece in fluid communication with the inlet of the container chamber and through which the subject in use exhales, such as to entrain substance from the container and deliver the same through the nosepiece; and moisture-mitigation means for mitigating an effect of moisture in an exhaled breath on the entrainment of substance from the container.
100 Citations
28 Claims
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1. A nasal delivery device for delivering substance to a nasal cavity of a subject, the delivery device comprising:
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a container-receiving unit comprising a container chamber for receiving a substance-containing container which contains substance to be delivered to the nasal cavity of the subject, the container chamber including an inlet and an outlet; a nosepiece unit including a nosepiece for fitting to a nasal cavity of the subject, the nosepiece being in fluid communication with the outlet of the container chamber; and a mouthpiece unit including a mouthpiece in fluid communication with the inlet of the container chamber and through which the subject in use exhales, so as to entrain substance from the container and deliver the same through the nosepiece, and an air chamber which fluidly connects the mouthpiece to the inlet of the container chamber, wherein the air chamber incorporates a temperature regulator for regulating a temperature of an air flow as exhaled therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A nasal delivery device for delivering substance to a nasal cavity of a subject, the delivery device comprising:
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a container-receiving unit comprising a container chamber for receiving a container-containing member which contains a substance-containing container which contains substance to be delivered to the nasal cavity of the subject, wherein the container chamber includes an inlet and an outlet and the container-containing member includes a flow passage in which the container is disposed so as to be rotatable therewithin when an air flow is delivered therethrough; a nosepiece unit including a nosepiece for fitting to a nasal cavity of the subject, the nosepiece being in fluid communication with the outlet of the container chamber; and a mouthpiece unit including a mouthpiece in fluid communication with the inlet of the container chamber and through which the subject in use exhales so as to entrain substance from the container and deliver the same through the nosepiece. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of delivering substance to a nasal cavity of a subject, the method comprising the steps of:
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disposing a substance-containing container which contains substance to be delivered to the nasal cavity of the subject in a container chamber, the container chamber including an inlet and an outlet; fitting a nosepiece in fluid communication with the outlet of the container chamber to a nasal cavity of the subject; the subject exhaling through a mouthpiece and an air chamber which fluidly connects the mouthpiece to the inlet of the container chamber, the air chamber incorporating a temperature regulator for regulating a temperature of an air flow as exhaled therethrough so as to deliver an air flow through the container chamber and entrain substance from the container and deliver the same through the nosepiece and into the nasal cavity of the subject; and drawing moisture from the exhaled air flow upstream of the container chamber so as to reduce condensation at or downstream of the container chamber, by regulating a temperature of an air flow as exhaled through the temperature regulator.
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28. A method of delivering substance to a nasal cavity of a subject, the method comprising the steps of:
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disposing a container-containing member which contains a substance-containing container which contains substance to be delivered to the nasal cavity of the subject in a container chamber, wherein the container chamber includes an inlet and an outlet and the container-containing member includes a flow passage in which the container is disposed so as to be rotatable therewithin when an air flow is delivered therethrough; fitting a nosepiece in fluid communication with the outlet of the container chamber to a nasal cavity of the subject; and the subject exhaling through a mouthpiece which is in fluid communication with the inlet of the container chamber so as to deliver an air flow through the container chamber and rotate the container within the flow passage of the container-containing member, and entrain substance from the container and deliver the same through the nosepiece and into the nasal cavity of the subject.
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Specification