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Delivery device and method

  • US 9,205,209 B2
  • Filed: 12/21/2012
  • Issued: 12/08/2015
  • Est. Priority Date: 05/20/2003
  • Status: Active Grant
First Claim
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1. A delivery device for delivering substance to a mucosal surface within the oral cavity of a subject, the device comprising:

  • a mouthpiece unit to be gripped in the mouth of a subject, wherein the mouthpiece unit is configured such that, on exhalation or attempted exhalation by the subject into the mouthpiece unit, a pressure is developed in the oral cavity which closes the oropharyngeal velum of the subject;

    an oral outlet unit including at least one substance outlet from which substance is delivered to a mucosal surface within the oral cavity of the subject when the subject exhales or attempts to exhale through the mouthpiece unit; and

    a breath-actuated delivery unit including a substance supply unit which is actuatable to deliver substance from the at least one substance outlet.

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