Patent ID: 6209538
Filing Date: 2001-04-03
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; anda gear mechanism disposed operationally between the flow restricting member and the blocking member such that the movement of the flow restricting member moves the gear mechanism and the gear mechanism moves the blocking member between the first and second positions.