Quantitative dry powder dosage form drug inhalation device

Abstract

The invention relates to a quantitative dry-powder medicine suction device. The quantitative dry-powder-type medicine suction device comprises a sandglass-shaped medicine pre-containing chamber of which the interior can be used for containing dry-powder medicine; a medicine storing chamber is arranged under the sandglass-shaped medicine pre-containing chamber, an inverted-taper-shaped quantitating body with the wide upper portion and the narrow lower portion is arranged in the medicine storing chamber, and the medicine storing chamber is composed of an upper circular plate, a lower circular plate and a side plate enclosed by the upper circular plate and the lower circular plate; the upper circular plate is provided with an upper circular hole, the lower circular plate is provided with a lower circular hole, the side plate is composed of a concaved plate and an observation window, and the concaved plate is provided with a control switch controlling the inverted-taper-shaped quantitating body in a linkage mode; a medicine suction chamber is arranged under the medicine storing chamber and connected to a suction nozzle through a pipeline. According to the quantitative dry-powder medicine suction device, the medicine storing chamber is provided with the observation window, so that a patient can visually know the medicine using condition; the operation method is simple, the medicine using accuracy and compliance of the patient can be improved, and the advantages of being simple in structure, capable of significantly reducing the cost and simple and accurate in quantitating method are achieved.

Description

technical field [0001] The invention relates to a medical device for inhaling a quantitative dry powder drug into the respiratory tract to take effect, in particular to a quantitative dry powder drug inhalation device. Background technique [0002] Existing inhalation therapy methods include: nebulization therapy, metered dose aerosol inhaler, dry powder inhalation device, and capsule dosage inhalation device. Among them, nebulization treatment requires a relatively large device, which cannot be used portablely. Timed aerosol inhalers have low inhalation efficiency, require complex breathing movements to complete the inhalation movements, and have poor compliance. The existing capsule inhalation device has problems such as complex structure and high cost. [0003] The existing dry powder inhalation device has the following problems: ① complex structure and high cost. Both the protection device and the acceptor device are complex in structure. ②The patient cannot see the ...

AI Technical Summary

Problems solved by technology

Among them, nebulization treatment requires a large volume device, which cannot be used portablely

Timing aerosol inhalers have low inhalation efficiency and require complex breathing movements to complete the inhalation action, resulting in poor compliance

The existing capsule inhalation device has problems such as complex structure and high cost

[0003] The existing dry powder inhalation device has the following problems: ① complex structure and high cost

Both the protective device and the acceptor device are complex in structure

②Patients cannot see the drug, and the drug is colorless and tasteless, patients often have doubts about whether they have successfully inhaled the drug

③The operation method is complicated, making the wrong inhalation method a common cause of treatment failure

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