Clinical drug delivery device
By designing a clinical drug delivery device that includes a drug storage chamber, a pressure cap, a one-way valve, and a spray cap, the problem of unstable pressure of inhalation drug nozzles was solved, achieving stable drug dispensing and easy operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU UNIV
- Filing Date
- 2025-08-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing inhalation spray nozzles are difficult to press smoothly and evenly, making it difficult to control drug inhalation and potentially causing problems such as excessive or insufficient pressure.
A clinical drug delivery device was designed, comprising a drug storage chamber, a pressure cap, a one-way valve, a spray cap, a push rod, and an atomizing nozzle. The one-way valve controls the air pressure and drug flow to ensure stable drug delivery.
It achieves continuous and stable drug dispensing, reduces operational difficulty, and improves the controllability of drug inhalation.
Smart Images
Figure CN224126380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a clinical drug delivery device. Background Technology
[0002] In some cases, inhaled medications are used during flare-ups of conditions such as bronchial asthma, chronic obstructive pulmonary disease, chronic bronchitis, and cystic fibrosis. However, existing inhaled medication bottles require users to press the nozzle steadily and at a uniform speed to allow the medication to be slowly expelled. But when pressing the existing nozzle, it is easy to press too high or too low, causing the pressure to be fully depressed at the beginning of inhalation or before the pressure is finished after inhalation, which is difficult to control. Therefore, a clinical drug delivery device is designed to solve the above problems. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this invention provides a clinical drug delivery device that solves the problem that it is difficult to press the nozzle of existing drug delivery devices smoothly and evenly.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides a clinical drug delivery device, comprising: a cylindrical and hollow drug storage chamber, the upper part of which is hollow; a pressure cap slidably connected to the upper part of the drug storage chamber; a one-way valve I inserted and connected to the middle of the upper part of the drug storage chamber, with the water inlet of the one-way valve I facing downwards; a second one-way valve II installed inside the upper right side of the drug storage chamber, with the air inlet of the second one-way valve facing outwards; and the lower part of the drug storage chamber is also hollow, and the lower part of the drug storage chamber is slidably connected. The device is equipped with a spray cap, and a drug inlet pipe is fixedly connected to the upper side of the lower end of the drug storage chamber. A push rod is fixedly connected to the upper end of the spray cap. A drug outlet pipe is opened at the lower end of the drug storage chamber. The upper end of the push rod is inserted into the inside of the drug outlet pipe, and the lower side of the upper end of the push rod is close to the upper inside of the drug outlet pipe. An atomizing nozzle is provided inside the rear side of the drug outlet pipe. A mouthpiece is fixedly connected to the outside of the drug storage chamber and outside the atomizing nozzle. A return spring is connected between the spray cap, the pressure cap, and the drug storage chamber.
[0008] Preferably, a groove is formed around the outer side of the atomizing nozzle, and an air inlet pipe is provided at the lower end of the medicine storage chamber, with a one-way valve installed inside the lower end of the air inlet pipe.
[0009] Preferably, the outer side of the upper end of the push rod and the outer side of the upper end of the dispensing tube are both sloped.
[0010] Preferably, the upper and lower ends of the medicine storage compartment are connected by threads, and the outside of the medicine storage compartment is wrapped with packaging paper.
[0011] Preferably, both the one-way valve 2 and the one-way valve 3 are equipped with filter elements at their air inlet ends.
[0012] Preferably, a sealing ring is provided at the connection between the pressure cap, the spraying cap and the medicine storage chamber.
[0013] Preferably, a connecting bridge is provided at the connection between the pressure cap, the spraying cap and the opening of the medicine storage chamber.
[0014] (III) Beneficial Effects
[0015] This invention provides a clinical drug delivery device, which, compared with the prior art, has at least the following advantages:
[0016] Beneficial effects:
[0017] This clinical drug delivery device can continuously and stably spray atomized medicine during inhalation, reducing the difficulty of operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is a longitudinal sectional view of the present invention;
[0021] Figure 4 This utility model Figure 2 A magnified view of a portion of the image;
[0022] Figure 5 This utility model Figure 3 A magnified view of a portion of the image.
[0023] In the diagram: 1. Medicine storage compartment; 2. Pressure cap; 3. One-way valve 1; 4. One-way valve 2; 5. Spray cap; 6. Inlet pipe; 7. Push rod; 8. Outlet pipe; 9. Atomizing nozzle; 10. Mouthpiece; 11. Return spring; 21. Air inlet pipe; 22. One-way valve 3. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 This utility model provides a technical solution: a clinical drug delivery device, comprising: a cylindrical and hollow drug storage chamber 1, the upper part of which is hollow, a pressure cap 2 slidably connected to the upper part of which is hollow, a one-way valve 3 inserted and connected to the middle of the upper part of which is hollow, the water inlet of the one-way valve 3 facing downwards, a second one-way valve 4 installed inside the upper right side of which is hollow, the air inlet of the second one-way valve 4 facing outwards, and the lower part of which is also hollow, and a slidably connected to the lower part of which is hollow. The device includes a spray cap 5, an inlet pipe 6 fixedly connected to the upper side of the lower end of the storage chamber 1, a push rod 7 fixedly connected to the upper end of the spray cap 5, an outlet pipe 8 opened at the lower end of the storage chamber 1, the upper end of the push rod 7 inserted into the outlet pipe 8, the lower side of the upper end of the push rod 7 close to the upper side of the outlet pipe 8, an atomizing nozzle 9 provided inside the rear side of the outlet pipe 8, a mouthpiece 10 fixedly connected to the outside of the storage chamber 1 and outside the atomizing nozzle 9, and a return spring 11 connected between the spray cap 5, the pressure cap 2 and the storage chamber 1.
[0026] In use, the inside of the medication storage chamber 1 is filled with medication. Before use, press the upper pressure cap 2. The pressure cap 2 will slide down along the upper part of the inside of the medication storage chamber 1, increasing the internal air pressure. One-way valve 3 is opened, and air is sent into the inside of the medication storage chamber 1. When the pressure cap 2 is released, one-way valve 3 closes, and one-way valve 4 is pushed open by pressure. Air enters the upper part of the inside of the medication storage chamber 1 through one-way valve 4. Press repeatedly to increase the internal pressure of the medication storage chamber 1. Then, the patient holds the mouthpiece 10 in their mouth and presses the spray cap 5. The push rod 7 is pushed out. The pressure inside the dispensing tube 8 and the inlet tube 6 will be less than the pressure inside the medication storage chamber 1. The liquid medication is sprayed out through the dispensing tube 8 and the inlet tube 6, and then sprayed out through the nebulizer nozzle 9. The user only needs to keep pressing to inhale.
[0027] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, a groove is opened around the outer side of the atomizing nozzle 9, and an air inlet pipe 21 is provided at the lower end of the medicine storage chamber 1. A one-way valve 22 is installed inside the lower end of the air inlet pipe 21.
[0028] Analysis of the above structure shows that during inhalation, the air inlet pipe 21 can assist in the intake of air, while the one-way valve 22 can prevent the liquid medicine from leaking out through the air inlet pipe 21.
[0029] like Figure 1-5 As shown, this utility model embodiment provides an implementation method in which the outer side of the upper end of the push rod 7 and the outer side of the upper end of the dispensing tube 8 are both sloped.
[0030] Analysis of the above structure shows that the upper outer side of the push rod 7 and the upper outer side of the medicine tube 8 are both sloped, which makes the connection tighter and prevents the medicine from leaking out.
[0031] like Figure 1-5 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the upper end and lower end of the medicine storage compartment 1 are connected by threads, and the outer side of the medicine storage compartment 1 is wrapped with packaging paper.
[0032] Analysis of the above structure shows that the device is for single-use medicine. After use, the top of the medicine storage compartment 1 needs to be twisted off to refill it. At this time, the outer packaging paper will also be torn to prevent reuse and sale.
[0033] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, both the air inlet ends of the one-way valve 22 and the one-way valve 32 are provided with filter elements.
[0034] Analysis of the above structure shows that the filter elements at the air inlet of one-way valve 24 and one-way valve 32 can reduce the entry of impurities in the air.
[0035] like Figure 1-5 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, a sealing ring is provided at the connection between the pressure cap 2, the spray cap 5 and the medicine storage chamber 1.
[0036] Analysis of the above structure shows that the sealing ring at the connection between the pressure cap 2, the spray cap 5 and the medicine storage chamber 1 can prevent air from entering the interior of the medicine storage chamber 1.
[0037] like Figure 1-5 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, a connecting bridge is provided at the connection between the pressure cap 2, the spray cap 5 and the opening of the medicine storage chamber 1.
[0038] Analysis of the above structure shows that the connecting bridge at the connection between the pressure cap 2, the spray cap 5 and the opening of the storage chamber 1 ensures that the product is not illegally opened or tampered with before the first opening.
[0039] 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.
[0040] 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. A clinical administration device, characterized in that, include: The overall shape is cylindrical and hollow. The upper part of the medicine storage chamber (1) is hollow. A pressure cap (2) is slidably connected to the upper part of the medicine storage chamber (1). A one-way valve (3) is inserted and connected to the middle of the upper part of the medicine storage chamber (1). The water inlet of the one-way valve (3) faces downward. A one-way valve (4) is installed inside the upper right side of the medicine storage chamber (1). The air inlet of the one-way valve (4) faces outward. The lower part of the medicine storage chamber (1) is also hollow. A spray cap (5) is slidably connected to the lower part of the medicine storage chamber (1). A drug inlet pipe (6) is fixedly connected to the upper side of the spray cap (5). A push rod (7) is fixedly connected to the upper inside of the spray cap (5). A drug outlet pipe (8) is opened at the lower inside of the storage chamber (1). The upper end of the push rod (7) is inserted into the inside of the drug outlet pipe (8). The lower side of the upper end of the push rod (7) is close to the upper inside of the drug outlet pipe (8). An atomizing nozzle (9) is provided inside the rear side of the drug outlet pipe (8). A mouthpiece (10) is fixedly connected to the outside of the storage chamber (1) and outside the atomizing nozzle (9). A return spring (11) is connected between the spray cap (5), the pressure cap (2) and the storage chamber (1).
2. The clinical administration device of claim 1, wherein: The atomizing nozzle (9) has a groove around its outer side, and the lower end of the medicine storage chamber (1) is provided with an air inlet pipe (21). A one-way valve (22) is installed inside the lower end of the air inlet pipe (21).
3. The clinical administration device of claim 1, wherein: The outer side of the upper end of the push rod (7) and the outer side of the upper end of the dispensing tube (8) are both sloped.
4. The clinical administration device of claim 1, wherein: The upper and lower ends of the medicine storage compartment (1) are connected by threads, and the outside of the medicine storage compartment (1) is wrapped with packaging paper.
5. The clinical administration device of claim 2, wherein: Both the one-way valve 2 (4) and the one-way valve 3 (22) are equipped with filter elements at their air inlet ends.
6. The clinical administration device of claim 1, wherein: A sealing ring is provided at the connection between the pressure cap (2), the spray cap (5) and the medicine storage chamber (1).
7. The clinical administration device of claim 1, wherein: A connecting bridge is provided at the connection between the pressure cap (2), the spray cap (5) and the opening of the medicine storage chamber (1).