The present invention provides for the integration of
drug dispersion methods into a
drug or
medicine delivery system. The
drug dispersion methods used include shear (e.g., air across a drug, with or without a gas assist), capillary flow or a
venturi effect, mechanical means such as
spinning, vibration, or impaction, and turbulence (e.g., using mesh screens, or restrictions in the air path). These methods of drug dispersion allow for all of the drug in the
system to be released, allowing control of the dosage size. These methods also provide for drug metering,
fluidization, entrainment, deaggragation and deagglomeration. The present invention also provides for the integration of a drug sealing
system into the device. The drug sealing
system provides a way of blocking the migration of drug from one area of the
package to another. The drug seal system can also provide a method of tightly containing the drug until the
package is opened, of directing
airflow through the
package and of managing and containing the drug during the package / device manufacturing process.