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Nasal devices

  • US 7,854,227 B2
  • Filed: 04/25/2003
  • Issued: 12/21/2010
  • Est. Priority Date: 04/25/2002
  • Status: Active Grant
First Claim
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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.

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