An asthma administration device

By using a combination structure of connecting rod, slider and spring in the drug delivery device, the problem of end cap loosening is solved, achieving convenient operation and good sealing, and improving the safety of use.

CN224387909UActive Publication Date: 2026-06-23ANHUI MEDICAL UNIV SCHOOL OF CLINICAL MEDICINE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI MEDICAL UNIV SCHOOL OF CLINICAL MEDICINE
Filing Date
2025-04-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The end caps of existing drug delivery devices are prone to loosening after prolonged use, affecting the normal operation of the device.

Method used

It adopts a combination structure of connecting rod, slider and spring. The end cover cooperates with the suction port through elastic component to realize easy rotation to open and close, and the spring maintains a good sealing effect.

Benefits of technology

It improves the ease of operation and sealing effect of the drug delivery device, reduces dust and bacterial contamination, and ensures safe use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an asthma dosing device, including spray bottle and bottom is equipped with the dosing device of suction port, and the both sides of suction port are respectively through the rotatory installation of sliding block and have connecting rod, and one pair of connecting rod's end portion fixed mounting has same end cover, and the elastic component is connected between connecting rod and sliding block, so that end cover is covered in the end of suction port through the cooperation of elastic component. The utility model discloses through connecting rod, sliding block and spring cooperation in the suction port department of dosing device and constitute the end cover of easily rotatable opening and closing, when using, patients only need to rotate end cover simply, can expose suction port and give medicine quickly, and the operation is convenient, and spring can make end cover always keep certain pressure under the closed state, betterly adhere suction port, form good sealing effect, and spring hides in connecting rod, is not easy to contaminate dust and bacteria, guarantees the use safety of patient.
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Description

Technical Field

[0001] This utility model relates to the field of drug delivery devices, specifically an asthma drug delivery device. Background Technology

[0002] Asthma, a common chronic inflammatory airway disease, affects a large number of people worldwide. During an attack, patients experience reversible airflow limitation, leading to symptoms such as wheezing, shortness of breath, chest tightness, and coughing, severely impacting quality of life and even endangering life. Timely and effective medication is crucial for controlling asthma symptoms and preventing acute attacks.

[0003] An inhalation device is a device that atomizes and sprays medication for a patient to inhale. For example, Chinese patent application CN202322701259.6 discloses an inhalation device including a device body and a device cap. The device cap is fitted onto the medication outlet of the device body. The device cap has a connecting arm extending toward the device body, and the connecting arm has a movable connecting part along its length. The device body has a movable connecting mating part, and the movable connecting mating part is movably connected to the movable connecting part. The device cap can move relative to the device body through the engagement of the movable connecting part and the movable connecting mating part, and when the device cap leaves the medication outlet, the device cap can rotate relative to the device body through the engagement of the movable connecting part and the movable connecting mating part.

[0004] The end cap of the drug delivery device in the above document is limited by the connecting arm and the slot. After repeated opening and closing, it is prone to wear and deformation, which leads to a decrease in the limiting effect or even loss of function, affecting the normal use of the drug delivery device. Utility Model Content

[0005] The purpose of this invention is to provide an asthma drug delivery device to solve the problem mentioned in the background art that the end cap of existing drug delivery devices is prone to loosening after prolonged use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an asthma drug delivery device, comprising a spray bottle and a drug delivery device with an inhalation port at the bottom, wherein connecting rods are rotatably mounted on both sides of the inhalation port via sliders, and the ends of a pair of connecting rods are fixedly mounted with the same end cap, and an elastic member is connected between the connecting rods and the slider so that the end cap is closed to the end of the inhalation port through the cooperation of the elastic member.

[0007] Preferably, the elastic member is a spring movably installed inside the connecting rod, the inner wall of the connecting rod is provided with a groove for accommodating the slider, the slider is slidably installed in the groove, and the two ends of the spring are in contact with the slider and the connecting rod, respectively.

[0008] Preferably, a limiting block is fixedly installed at one end of the connecting rod, and one end of the limiting block is set as a vertical segment.

[0009] Preferably, the end of the slider is provided with a protruding section that matches the groove.

[0010] Preferably, multiple anti-slip protrusions are integrally formed on both sides of the end cap.

[0011] Preferably, the inlet is provided with a slot that is adapted to the end cap.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses a connecting rod, a slider, and a spring to form an end cap at the inhalation port of the drug delivery device that can be easily rotated to open and close. When using it, the patient only needs to simply rotate the end cap to quickly expose the inhalation port for drug delivery, making it convenient to operate. The spring ensures that the end cap maintains a certain pressure when closed, better fitting the inhalation port and forming a good sealing effect. Moreover, the spring is hidden in the connecting rod, making it less prone to dust and bacteria accumulation, thus ensuring the safety of the patient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first state of this utility model;

[0015] Figure 2 This is a schematic diagram of the second state three-dimensional structure of the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the disassembled end cap and drug delivery device of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the connecting rod of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the connecting rod and slider of this utility model.

[0019] In the diagram: 1. Administering device; 2. Spray bottle; 3. End cap; 4. Connecting rod; 5. Inhalation port; 6. Anti-slip protrusions; 7. Slot; 8. Slider; 9. Spring; 10. Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model provides a technical solution: an asthma drug delivery device, including a spray bottle 2 and a drug delivery device 1 with an inhalation port 5 at the bottom. Both the drug delivery device 1 and the spray bottle 2 are existing technologies, and their principles are not detailed here. Connecting rods 4 are rotatably mounted on both sides of the inhalation port 5 via sliders 8. The ends of a pair of connecting rods 4 are fixedly fitted with the same end cap 3. A limiting block 10 is fixedly mounted on one end of each connecting rod 4, with one end of the limiting block 10 being a vertical section. An elastic member connects the connecting rods 4 and the sliders 8. During long-term use, as long as its elastic limit is not exceeded, the elastic member can generally maintain good performance and is not easily damaged. Even with frequent rotation of the end cap 3, it can continuously provide stable elasticity. Compared with conventional snap-fit ​​fixing, snap-fit ​​limiting is prone to wear and deformation after repeated opening and closing, resulting in a poorer limiting effect or even loss of function, affecting the normal use of the drug delivery device. The inhalation port 5 has a slot 7 that matches the end cap 3, so that the end cap 3 can be fitted onto the end of the inhalation port 5 through the cooperation of the elastic member. The elastic component is a spring 9 that is movably installed inside the connecting rod 4. The inner wall of the connecting rod 4 is provided with a groove for accommodating the slider 8. The slider 8 is slidably installed in the groove. The end of the slider 8 is provided with a protruding section that matches the groove. The two ends of the spring 9 are in contact with the slider 8 and the connecting rod 4, respectively. The two sides of the end cap 3 are integrally formed with multiple anti-slip protrusions 6. The advantage of this design is to increase the friction with the skin.

[0022] When the end cap 3 needs to be opened and closed, the slider 8 slides in the connecting rod 4 and compresses the spring 9 by pulling the end cap 3. After the end cap 3 is pulled out of the slot 7, the end cap 3 can be rotated away from the inhalation port 5. This application uses the connecting rod 4, slider 8 and spring 9 to form an end cap 3 that can be easily rotated to open and close at the inhalation port 5 of the drug delivery device 1. When the patient uses it, he only needs to simply rotate the end cap 3 to quickly expose the inhalation port 5 for drug delivery. The operation is convenient. The spring 9 can keep the end cap 3 under a certain pressure when it is closed, better fit the inhalation port 5 and form a good sealing effect. Moreover, the spring 9 is hidden in the connecting rod 4 and is not easy to get dust and bacteria, which ensures the safety of the patient.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An asthma drug delivery device, characterized in that: The device includes a spray bottle (2) and a drug delivery device (1) with an inhalation port (5) at the bottom. Connecting rods (4) are rotatably mounted on both sides of the inhalation port (5) via sliders (8). The ends of the pair of connecting rods (4) are fixedly mounted with the same end cap (3). An elastic member is connected between the connecting rods (4) and the sliders (8) so that the end cap (3) can be closed to the end of the inhalation port (5) through the cooperation of the elastic member.

2. The asthma drug delivery device according to claim 1, characterized in that: The elastic component is a spring (9) movably installed in the connecting rod (4). The inner wall of the connecting rod (4) is provided with a groove for accommodating the slider (8). The slider (8) is slidably installed in the groove. The two ends of the spring (9) are in contact with the slider (8) and the connecting rod (4) respectively.

3. The asthma drug delivery device according to claim 1, characterized in that: One end of the connecting rod (4) is fixedly installed with a limiting block (10), and one end of the limiting block (10) is set as a vertical section.

4. An asthma drug delivery device according to claim 2, characterized in that: The end of the slider (8) is provided with a protruding section that is adapted to the groove.

5. An asthma drug delivery device according to claim 1, characterized in that: The end cap (3) has multiple anti-slip protrusions (6) integrally formed on both sides.

6. An asthma drug delivery device according to claim 1, characterized in that: The inlet (5) is provided with a slot (7) that is adapted to the end cap (3).