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Dry powder inhalation device

  • US 6,012,454 A
  • Filed: 06/10/1997
  • Issued: 01/11/2000
  • Est. Priority Date: 04/28/1989
  • Status: Expired due to Fees
First Claim
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1. A dry powder inhaler comprising:

  • a housing that has a portion that receives a dose of powdered medicament,a patient port for being placed in fluid communication with a patient;

    an inhalation passageway in communication with the patient port,a deagglomerator that deagglomerates or assists in aerosolization of the dose of powdered medicament;

    an electric powered device that drives the deagglomerator;

    a patient-independent energy output source that drives the electric powered device,a detector that detects inspiratory flow through the inhalation passageway; and

    a controller for actuating the deagglomerator in response to detection of the inspiratory flow by the detector.

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