Patent ID: 6220243
Filing Date: 2001-04-24
Classification: A61M

Abstract:
An inhalation device comprising a body forming a reservoir for medicaments in the form of a powder, an outlet through which a user can inhale, and a dosing member with at least one metering recess formed therein, the dosing member being movable between a position in which the at least one metering recess communicates with the reservoir to receive a dose of powder therefrom and a position in which the at least one metering recess communicates with the outlet to permit the user to inhale the dose, the at least one metering recess being formed in a face of the dosing member, the face being mounted in contact against a similar mating face of the body, characterised in that the face of the dosing member and the said mating face of the body have highly polished smooth surfaces which form a contacting face to face seal in which said sealing faces adhere to each other sufficiently to exclude air and moisture while being slidable relative to each other.