Patent ID: 6561186
Filing Date: 2003-05-13
Classification: A61M

Abstract:
A dry powder medicament inhalator comprising:a housing including a body having: a primary inhalation passage extending through the body for allowing airflow through the body; a flow restricting member disposed in the primary inhalation passage such that air passing through the primary inhalation passage moves the flow restricting member between a first, nonrestricting position, and a second, restricting position wherein the flow restricting member restricts airflow through the primary inhalation passage; a secondary inhalation passage extending at least partially through the body; a blocking member disposed in communication with the second inhalation passage for selectively preventing airflow through the second inhalation passage, the blocking member being moveable between a first, closed position to block airflow through the secondary inhalation passage and a second, open position wherein the blocking member does not prevent airflow through the secondary inhalation passage; and a deaggregation channel disposed in fluid communication with the second inhalation passage, the deaggregation channel being configured with at least one impact surface for breaking up aggregations of medicament.