Method for improving dosage measurement accuracy of powder inhalation administration device
A drug delivery device and powder mist technology, which is applied in the field of improving the metering accuracy of the powder mist drug delivery device, can solve the convenience of mechanical structure parameter design and adjustment that cannot be well adapted and does not have the adaptability of the type of medicine , poor fluidity index parameters and other problems, to achieve good adaptability to the types of chemicals, increase good adaptability, and improve the effect of measurement accuracy
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[0045] The present invention will be further described below in conjunction with the drawings and embodiments.
[0046] Combine Figure 1 to Figure 4 It can be seen that the technical solution of the present invention provides a method for improving the accuracy of the dosage of a powder aerosol drug delivery device. The powder aerosol drug delivery device includes a device provided in a housing of the drug delivery device. The medicinal powder storage container and the medication metering assembly are provided with a suction nozzle on the outside of the housing, and a flow channel component is arranged inside the housing, and the flow channel member is connected to the air inlet, the medication metering assembly, and The mouthpiece; the drug delivery device housing is composed of an upper cover, a housing, and a lower housing set coaxially in sequence, and a screw cap is provided at the lower end of the lower housing; the flow channel component is composed of flow The upper par...
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