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POWDER DISPERSION DEVICES AND METHODS

  • US 20130340747A1
  • Filed: 02/25/2013
  • Published: 12/26/2013
  • Est. Priority Date: 06/25/2012
  • Status: Active Grant
First Claim
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1. A dry powder inhaler, comprising:

  • a first chamber that is adapted to receive an aerosolized powdered medicament from an inlet channel, wherein volume of the first chamber is greater than volume of the inlet channel;

    a dispersion chamber that is adapted to receive at least a portion of the aerosolized powdered medicament from the first chamber, the dispersion chamber holding an actuator that is movable within the dispersion chamber along a longitudinal axis; and

    an outlet channel through which air and powdered medicament exit the inhaler to be delivered to a patient;

    wherein the geometry of the inhaler is such that a flow profile is generated within the dispersion chamber that causes the actuator to oscillate along the longitudinal axis, thus enabling the oscillating actuator to effectively disperse powdered medicament received in the dispersion chamber for delivery to the patient through the outlet channel.

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