Patent ID: 6085742
Filing Date: 2000-07-11
Classification: A61M

Abstract:
A delivery device for administering metered doses of medicament from a medicament container for inhalation by a patient comprising:a mouthpiece having a mouthpiece passage extending therethrough through which medicament can pass, said mouthpiece passage having a first cross sectional size;a medicament receiving chamber into which medicament from said medicament container is dispensed,a medicament container holder for a medicament container mounted on said medicament receiving chamber, said medicament container holder having an actuator for supplying medicament from a medicament container mounted in said medicament container holder to said medicament receiving chamber; andan elongate, restricted tubular delivery channel connecting the mouthpiece passage with the medicament receiving chamber, said elongate, restricted delivery channel being formed with a length and a second cross sectional size smaller than said first cross sectional size of the mouthpiece passage to restrict and control the flow rate of medicament from the medicament receiving chamber to the mouthpiece passage by requiring the formation of a pressure differential to achieve a flow rate of medicament from the medicament receiving chamber through the elongate restricted delivery channel to the mouthpiece passage.