This relates to a device for Inhalation Drugs Powder to be received by a patient by an air current produced by inhalation which comprises at least a Powder Tank, a measuring means for Measuring a dose repeatedly Dust depositA Transport mechanism for moving the measuring Medium from a Loaded position to receive a dose of Powder to a discharge position to release the dose of dust to dust in a Channel, at least a triggering Device for manual use by the patient.When said Activation Device operatively connected to said Transport mechanism so that the use is measured after a Single Dose of Powder activation. The device comprises a Knob (5) operating in the Transport mechanism when pressed by Part of the patient.According to this, this Transport mechanism also comprises a Lever Knob (6) which acts on this means of measurement with the Metering Lever (6) locked in a position after inhalation of this means of measurement That Button do (5) decision has been pushed down by the patient.The Metering Lever (6) in the position of inhalation engages a firing Member and can be released by actuation of the trigger Member. The Trigger Member comprises at least one Surface cam and Lever Knob (6) engaged with the Cam Surface tangentially inhalation locked in that position.La presente se refiere a un dispositivo de inhalación para fármacos en polvo a ser recibidos por un paciente mediante una corriente de aire producida por inhalación que comprende al menos un depósito para polvo, un medio de medición para medir repetidamente una dosis de polvo del depósito, un mecanismo de transporte para mover dicho medio de medición desde una posición de cargado para recibir una dosis de polvo a una posición de vaciado para liberar dicha dosis de polvo en un canal para polvo, al menos un dispositivo de activación para el uso manual por parte del paciente, estando dicho dispositivo de activación conectado operativamente a dicho mecanismo de transporte de modo que tras el uso se mide una sola dosis de
