Inhalator

摘要

In the inhaler for the repeated inhalation of medicinal powders a metering wheel having metering chambers (22) between the intermediate floor (21) and a surround (20) which is supported on the bottom plate (14) is located in a housing (13) having a rotating cap (4). The rotating cap (4) which is supported by a spring (12) on the lid (17) has an axially arranged cylinder (7) which projects through the lid (17), the intermediate floor (21) and the surround (20) into the housing (13) and serves as the drive shaft for the metering wheel (1). The housing (13) is provided with a storage chamber (2) whose floor part (intermediate floor (21)) has an opening (23), the cross-section of which corresponds to that of the metering chambers (22). The base plate (14) is provided with a mouthpiece (9) located in a radial direction and having a blow-out duct (6) which has a valve (8) and opens into a hollow piston (16) which is fastened on the base plate (14), extends into the cylinder (7) and connects the blow-out duct (6) to the interior of the cylinder (7) via an opening (24). The surround (20) has a shaft (5) which connects the metering chambers (22) to the blow-out duct (6) via an opening (25) in the mouthpiece (9).