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Dry powder inhaler

  • US 7,958,890 B2
  • Filed: 12/04/2008
  • Issued: 06/14/2011
  • Est. Priority Date: 02/01/2000
  • Status: Expired due to Fees
First Claim
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1. A unit dose dry powder inhaler, comprising:

  • a housing having an inlet portion;

    a platform on an exterior surface of the inlet portion of the housing;

    a unit dose container on the platform of the housing, with the unit dose container containing a unit dose of a dry powder;

    a dispersion chamber in the housing;

    an inlet flow path in the housing from the unit dose container to the dispersion chamber;

    a mouthpiece on the housing;

    an outlet tube in the housing providing an outlet flow path from the dispersion chamber into the mouthpiece, and with the outlet tube extending into the mouthpiece;

    at least one sheath air inlet providing a sheath air flow path into the mouthpiece; and

    the outlet flow path and the sheath air flow path coming together within the mouthpiece.

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