Reservoir-type dry powder inhaling administration system

Abstract

The invention discloses a reservoir-type dry powder inhaling administration system, which comprises a shell. The reservoir-type dry powder inhaling administration system is characterized in that a quantitative feeding mechanism is arranged in the shell, wherein a suction nozzle is arranged at the front end of the shell; the discharging end of the quantitative feeding mechanism is connected to the suction nozzle; a sliding support mechanism is arranged in the shell; the sliding support mechanism is connected to the quantitative feeding mechanism; a vibrating mechanism, by which the quantitative feeding mechanism is driven to vibrate so as to unload materials smoothly, is arranged between the sliding support mechanism and the quantitative feeding mechanism; an anti-dust actuating cover, by which the sliding support mechanism is moved so as to drive the vibrating mechanism and the quantitative feeding mechanism to do actions, is arranged at the front end of the shell; and the anti-dust actuating cover movably sleeves the suction nozzle. The invention aims at overcoming shortcomings in the prior art; and the provided reservoir-type dry powder inhaling administration system is simple in structure, smooth in material unloading, and capable of achieving accurate and quantitative administration and recording administration times.

Description

technical field [0001] The invention relates to a storage type dry powder inhalation drug delivery system. Background technique [0002] Dry powder inhaler, which is a micronized aerosol without propellant, refers to micronized drugs or carriers in the form of capsules, blisters or multi-dose reservoirs, using a special dry powder inhalation device. Preparations that are actively inhaled by the patient. As a dosage form for pulmonary administration, dry powder inhalation is clinically used to treat local lung diseases such as asthma, chronic obstructive disease, and cystic fibrosis. [0003] Due to its large absorption area and no hepatic first-pass effect, the pulmonary drug delivery route has attracted extensive attention in the field of drug delivery system research and development, and its clinical application has also developed from traditional local treatment of asthma to systemic disease treatment. Different from the general route of drug administration, pulmonary d...

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Problems solved by technology

[0004] Due to design defects, the existing dry powder inhalation devices generally cannot be administered quantitatively and accurately. The fluidity of the drug powder in the reservoir is poor, the feeding is not smooth enough, and the number of times of use cannot be effectively calculated, which brings a lot of inconvenience to the user.

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