Powder medicine inhaler

Abstract

The invention discloses a powder medicine inhaler comprising a bearing plate, a suction nozzle, a capsule chamber and an upper housing. Two spaced bearing plate lugs are integrally formed on the side part of the bearing plate; the inner sides of the two bearing plate lugs are close to each other and integrally form internal bosses; the deviated external sides integrally form external bosses; the side part of the suction nozzle integrally forms two suction nozzle lugs spaced to each other; the two suction nozzle lugs are provided with suction nozzle rotary holes matched with the internal bosses; the two suction nozzle rotary holes respectively cover the internal bosses in a rotary way; an upper housing lug is integrally formed on a lower part opening side of the upper housing; the left and right sides of the upper housing lug integrally form a left boss and a right boss; and the left boss and the right boss are respectively disposed in the two suction nozzle rotary holes of the suction nozzle in a rotary way. Pivotal connection between the upper housing, the suction nozzle, the bearing plate and the lower housing requires no specific rotating shaft component, so product production and management cost can be reduced and assembling of the powder medicine inhale can be simplified.

Description

technical field [0001] The present application relates to a powder medicament inhaler, which is used for delivering powdered medicaments, especially for delivering powdered medicaments for treating respiratory diseases (such as asthma and chronic obstructive pulmonary disease). Background technique [0002] In the known field of powder medicine inhalers, there are various kinds of powder medicine inhalers. Existing powder drug inhalers can be divided into three main categories: [0003] Type 1: Reservoir-type powder pharmaceutical inhalers, which have a reservoir in which a certain dose of powder can be stored, and a metering part that can be separated from the reservoir at each actuation A certain dose of powder is dispensed, and then the separated powder is inhaled into the patient's body through the exhaust tube. Disadvantages of this type of powder inhaler: 1. The amount of powder delivered each time is unstable; 2. The sealing performance of this type of powder drug i...

AI Technical Summary

Problems solved by technology

Disadvantages of this type of powder inhaler: 1. The amount of powder delivered each time is unstable; 2. The sealing performance of this type of powder drug inhaler is poor, so the powder is easily affected by moisture in a relatively humid environment, which affects the expected effect; 3. The powder During the separation process in the storage, some powder will remain inside the powder drug inhaler, which will pollute the powder drug inhaler and cause certain harm to the user

This type of powder drug inhaler better guarantees the sealing of the powder; its disadvantages: 1. Poor repeatability, and there are differences in the delivery of the same powder drug inhaler to the patient before and after; 2. The inside of the powder drug inhaler will Residual drug powder will pollute the powder inhaler and cause certain harm to the user; 3. There will be powder residue in the blister, which will cause the performance of the powder to fail to achieve the expected effect;

The shortcoming of existing this type of product: one, the reliability of existing powder medicine inhaler is poor; Normal use; 2. The powder drug inhaler cannot be fully cleaned, which is easy to cause pollution; 3. The use is not humane enough, and the use is not convenient enough; the assembly process is complicated, the defective rate is high, and the manufacturing cost is high

Assembly is troublesome, from an economical point of view, this spindle is completely unnecessary

[0008] 2. A pair of transparent windows are used. The actual size of the window is restricted by the strength of the components and cannot be made very large. It is not suitable for patients to observe the internal situation. It is likely to cause patients to misjudge the internal situation and cause later stage When taking medicine, inhaling extra medicine or even dirty

Moreover, the main airflow of the capsule chamber is also connected to the lower shell cavity first, and then to the atmosphere, which leads to whether the airflow in the lower shell cavity is clean or not, which will affect the cleanliness of the two airflows

[0010] 4. In the current prior art, the capsule chamber is provided with two pointed points which can be oppositely moved with the spring to push the button. This button is extremely inconvenient to install on the capsule chamber. The capsule room is extremely inconvenient, and has not obtained good quality control conditions, and it may fall

[0011] 5. A hole smaller than 1mm is set on the bottom plate. The edge of this hole is very close to the capsule chamber, resulting in a weak structure of the part. Not only the product is easily damaged, but the mold is also easily damaged.

[0012] 6. There is a slit formed by a reduced width on the base plate close to the main shaft, resulting in a relatively weak base plate on this side of the main shaft

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