Nasal delivery devices
First Claim
Patent Images
1. A nasal delivery device for delivering a substance to a nasal cavity of a subject, comprising:
- a nosepiece for fitting in or to a nostril of a subject;
a mouthpiece into which the subject in use exhales;
a substance supply unit fluidly connected to the nosepiece and actuatable to deliver a substance to the nosepiece; and
a trigger mechanism for actuating the substance supply unit in response to exhalation through the mouthpiece.
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Accused Products
Abstract
An exhalation breath-actuated nasal deliver device for and a method of delivering a substance to a nasal cavity of a subject, the delivery device comprising: a nosepiece for fitting to a nostril of a subject; a mouthpiece through which the subject in use exhales; and delivery unit, as one of a mechanical delivery pump or a nebulizer, for delivering a substance to the nosepiece; and an actuation mechanism for actuating the delivery unit in response to oral exhalation through the mouthpiece, and preferably when at least one or both of the pressure at or the flow rate through the nosepiece exceeds a predetermined threshold.
145 Citations
17 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 nosepiece for fitting in or to a nostril of a subject; a mouthpiece into which the subject in use exhales; a substance supply unit fluidly connected to the nosepiece and actuatable to deliver a substance to the nosepiece; and a trigger mechanism for actuating the substance supply unit in response to exhalation through the mouthpiece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A nasal drug delivery system comprising:
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a container containing a substance to be delivered into the nasal passages of a user; a nosepiece extending from the drug delivery system for placement in or at the nose of user, said nosepiece in fluid communication with a valve of said container; a mouthpiece, extending from the drug delivery system for placement in the mouth of a user; and a pressure activated diaphragm trigger means, wherein upon application of pressure to the mouthpiece the diaphragm trigger means releases a predetermined amount of said substance from said container to said nosepiece. - View Dependent Claims (14, 15, 16, 17)
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Specification