×

Dry powder drug delivery system and methods

  • US 9,662,461 B2
  • Filed: 05/02/2016
  • Issued: 05/30/2017
  • Est. Priority Date: 06/13/2008
  • Status: Active Grant
First Claim
Patent Images

1. A dry powder inhaler comprising:

  • at least one rigid air conduit and a housing configured to accept a cartridge, the cartridge comprising a lid anda movable container having a dry powder, the container configured to move relative to the cartridge lid from a storage position to a dispensing position to form a flow path between one or more inlet ports and one or more dispensing ports within the inhaler; and

    wherein the dry powder inhaler is configured to emit greater than about 75% of a dry powder from the container as powder particles in a single inhalation, and the powder particles emitted have a volumetric median geometric diameter of less than about 5 microns when the single inhalation generates a peak inspiratory pressure of about 2 kPa within two seconds.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×