Patent ID: 6341603
Filing Date: 2002-01-29
Classification: A61M

Abstract:
Inhalation apparatus for dispensing a product comprising a housing adapted to receive a pressurized dispensing container, and a mouthpiece, a duct for conveying, in use, product from the container to the mouthpiece, valve means movable between a first position in which the duct is closed and a second position in which the duct is open, and a flow sensor being activatable, by means of an airflow created when a user applies suction to the mouthpiece, to move the valve means into its second position, wherein the flow sensor comprises a diaphragm and the diaphragm and/or housing is provided with at least one aperture, wherein the diaphragm comprises a first element connected to the housing and a second element axially slidably movable relative thereto, the first and second diaphragm elements being connected by a flexible member.