Ear canal drug delivery device

Abstract

The utility model belongs to the technical field of medical instruments, particularly relates to an auditory meatus administration device, and provides the following scheme aiming at the problems that the existing traditional auditory meatus administration mode is usually that liquid medicine is dripped into an auditory meatus through a dropper, but the mode has the problems that the liquid medicine is not uniformly distributed, is easy to flow out and the like, and the treatment effect is influenced. Comprising a needle tube used for containing liquid medicine, and a communicating tube used for allowing the liquid medicine to pass through is fixed to the side end of the needle tube; a sealing plate slides in the needle tube, a connecting rod is fixed to the side end of the sealing plate, a second pressing plate is fixed to the side end of the connecting rod, and a first pressing plate is fixed to the surface of the needle tube; a notched inner ring is fixed on the surface of the needle tube, a notched outer ring is fixed on the surface of the notched inner ring, and a containing gap is formed between the notched outer ring and the notched inner ring, the auditory meatus dosing device has the advantages of being simple in structure, convenient to operate, even in dosing, high in applicability and the like, and the treatment effect of auditory meatus dosing and the comfort degree of a patient can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an ear canal drug delivery device. Background Technology

[0002] In the medical field, ear canal drug delivery is a common treatment method, especially for diseases such as otitis media and external auditory canal infections.

[0003] Traditional ear canal drug delivery methods typically involve dripping medication into the ear canal using a dropper. However, this method suffers from uneven drug distribution and leakage, affecting treatment efficacy. To address these issues, researchers have begun exploring novel ear canal drug delivery devices to improve the uniform distribution and delivery efficiency of the medication. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of traditional ear canal drug delivery methods, which typically involve dripping medication into the ear canal using a dropper. These methods suffer from uneven drug distribution and easy leakage, thus affecting the therapeutic effect. Therefore, this invention proposes an ear canal drug delivery device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ear canal drug delivery device includes a needle for containing a drug solution, and a connecting tube for allowing the drug solution to pass through is fixed to the side end of the needle.

[0007] The needle tube has a sliding sealing plate inside, a connecting rod fixed to the side end of the sealing plate, a second pressing plate fixed to the side end of the connecting rod, and a first pressing plate fixed to the surface of the needle tube.

[0008] The surface of the syringe is fixed with an inner ring with a notch, and the surface of the inner ring with a notch is fixed with an outer ring with a notch. An accommodating gap is formed between the outer ring with a notch and the inner ring with a notch. A set of limiting components is provided between the outer ring with a notch and the inner ring with a notch. The limiting components are used to control the amount of medicine injected into the syringe.

[0009] A feeding tube is sleeved on the surface of a connecting tube for administering medication into the ear canal. The surface of the feeding tube is evenly provided with multiple inlets for uniformly delivering medication into the ear canal.

[0010] A sealing plug is disposed on the surface of the feed tube for temporarily sealing the ear canal.

[0011] In one possible design, the limiting component includes an external thread on the surface of the inner ring of the notch, a nut is threadedly connected to the surface of the inner ring of the notch, a limiting ring slides within the accommodating gap, the limiting ring is located below the nut, the limiting ring and the nut are in compressive contact, a connecting post slides within the first pressing plate, and the connecting post is fixed between the limiting ring and the second pressing plate.

[0012] In one possible design, the surface of the nut is fixed with an anti-slip ring.

[0013] In one possible design, the surface of the connecting pipe is fixed with a threaded inner ring, the surface of the threaded inner ring is threadedly connected with a threaded outer ring, and the feeding pipe is fixed to the side end of the threaded outer ring.

[0014] In one possible design, the surface of the feed tube is provided with external threads, and the sealing plug is threadedly connected to the surface of the feed tube.

[0015] In one possible design, a silicone semi-circular head is fixed to the bottom end of the feeding tube.

[0016] In this application, during use, according to the medication requirements, the nut is moved to move on the surface of the inner ring of the notch. After the nut is adjusted to the correct position, the connecting tube is placed into the medicine bottle. By pulling the second pressing plate, the second pressing plate moves the sealing plate through the connecting rod, thus extracting the medicine liquid from the medicine bottle. The second pressing plate moves the limiting ring upward through the connecting column. The limiting ring is located below the nut. When the limiting ring contacts the bottom of the limiting ring, it is limited by the limiting ring and cannot continue to pull the second pressing plate. This allows for quantitative extraction of medicine liquid, ensuring the accuracy of the dosage. Subsequently, the feeding tube is screwed and fixed to the surface of the connecting tube. The position of the feeding tube is fixed by the threaded inner ring being threaded to the surface of the threaded outer ring.

[0017] By rotating the sealing plug on the surface of the feeding tube and adjusting it to the appropriate position, the feeding tube is inserted into the ear canal. The sealing plug is used to temporarily seal the tube and prevent the medication from spilling out. Pressing the second pressing plate can push the medication into the feeding tube, which then passes through multiple silicone semi-circular tips into the ear canal for medication administration.

[0018] Beneficial effects: In this utility model, the ear canal drug delivery device, by designing a connecting tube and multiple inlets, can achieve uniform distribution of the drug solution and improve drug delivery efficiency;

[0019] In this invention, the ear canal drug delivery device can precisely control the amount of drug injected into the needle by setting a limiting component and adjusting the position of the limiting ring, thereby meeting the treatment needs of different patients.

[0020] This invention has the advantages of simple structure, convenient operation, uniform drug delivery, and strong applicability, and can significantly improve the therapeutic effect of ear canal drug delivery and the patient's comfort. Attached Figure Description

[0021] Figure 1 This is a first front perspective view of an ear canal drug delivery device proposed in this utility model;

[0022] Figure 2 This is a second front perspective view of an ear canal drug delivery device proposed in this utility model;

[0023] Figure 3 This is a partial cross-sectional view of an ear canal drug delivery device proposed in this utility model.

[0024] In the diagram: 1. Needle tube; 2. Outer notch ring; 3. Inner notch ring; 4. Nut; 5. Limiting ring; 6. First pressing plate; 7. Second pressing plate; 8. Connecting rod; 9. Connecting column; 10. Feed tube; 11. Sealing plug; 12. Silicone semi-circular head; 13. Inlet; 14. Connecting tube; 15. Threaded inner ring; 16. Threaded outer ring; 17. Sealing plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1: Refer to Figures 1-3 A drug delivery device includes a needle 1 for containing a liquid medicine. A connecting tube 14 is fixed to the side end of the needle 1 for the passage of the liquid medicine. A sealing plate 17 is slidably disposed inside the needle 1 for controlling the outflow of the liquid medicine. A connecting rod 8 is fixed to the side end of the sealing plate 17, and a second pressing plate 7 is fixed to the side end of the connecting rod 8. For ease of operation, a first pressing plate 6 is also fixed to the surface of the needle 1.

[0027] To adjust the amount of medication injected into the syringe 1, this device has an inner notch ring 3 fixed to the surface of the syringe 1, and an outer notch ring 2 fixed to the surface of the inner notch ring 3. A accommodating gap is formed between the outer notch ring 2 and the inner notch ring 3, and a limiting ring 5 is slidably disposed within this gap. To fix the position of the limiting ring 5, this device is designed with a set of limiting components. Specifically, the limiting components include an external thread on the surface of the inner notch ring 3, and a nut 4 threadedly connected to the surface of the inner notch ring 3. The lower side of the nut 4 presses against the limiting ring 5, thereby fixing the position of the limiting ring 5. In addition, a connecting post 9 slides within the first pressing plate 6, and the connecting post 9 is fixed between the limiting ring 5 and the second pressing plate 7. By pressing the second pressing plate 7, the connecting post 9 and the limiting ring 5 can be moved, thereby adjusting the amount of medication injected into the syringe 1.

[0028] To facilitate the rotation of nut 4, an anti-slip ring is fixed on the surface of nut 4 to increase friction and facilitate user operation.

[0029] To achieve a detachable connection between the feeding pipe 10 and the connecting pipe 14, this device has a threaded inner ring 15 fixed to the surface of the connecting pipe 14, and a threaded outer ring 16 threadedly connected to the surface of the threaded inner ring 15. The feeding pipe 10 is then fixed to the side end of the threaded outer ring 16. This allows the user to replace the feeding pipe 10 with different lengths or diameters as needed.

[0030] The surface of the feeding tube 10 is evenly provided with a plurality of inlet ports 13, which are used to deliver medicine evenly into the ear canal.

[0031] This application can be used for ocular drug delivery, or for other applications applicable to this application.

[0032] Example 2: Reference Figures 1-3 An improvement upon Example 1: An ear canal drug delivery device, applied in the field of ENT medical device technology, to further ensure sealing during drug delivery, features an external thread on the surface of the delivery tube 10 and a sealing plug 11 threadedly connected to the surface of the delivery tube 10. During drug delivery, the sealing plug 11 can be tightened to prevent leakage; after delivery, the sealing plug 11 can be loosened to allow removal of the device.

[0033] To improve patient comfort, a silicone semi-circular head 12 is fixed to the bottom of the feeding tube 10. This silicone semi-circular head 12 has a certain degree of softness and elasticity, which can better adapt to the shape of the ear canal and reduce discomfort during drug administration.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ear canal drug delivery device, characterized in that, Include: The needle tube (1) for containing liquid medicine, the side end of the needle tube (1) is fixed with a communication pipe (14) for liquid medicine; Wherein, the needle tube (1) slides with a sealing plate (17), the side end of the sealing plate (17) is fixed with a connecting rod (8), the side end of the connecting rod (8) is fixed with a second pressing plate (7), the surface of the needle tube (1) is fixed with a first pressing plate (6); The surface of the needle tube (1) is fixed with a notch inner ring (3), the surface of the notch inner ring (3) is fixed with a notch outer ring (2), the notch outer ring (2) and the notch inner ring (3) form an accommodation gap, a set of limiting components are arranged between the notch outer ring (2) and the notch inner ring (3), the limiting components are used for controlling the medicine amount in the needle tube (1); The feeding pipe (10) is arranged on the surface of the communication pipe (14) for ear canal drug delivery, a plurality of inlet openings (13) are uniformly arranged on the surface of the feeding pipe (10), and the plurality of inlet openings (13) are used for uniformly delivering medicine into the ear canal; The sealing plug (11) is arranged on the surface of the feeding pipe (10) for temporarily sealing the ear canal.

2. A device according to claim 1, wherein The limiting component includes an external thread arranged on the surface of the notch inner ring (3), the surface of the notch inner ring (3) is threadedly connected with a nut (4), a limiting ring (5) slides in the accommodation gap, the limiting ring (5) is arranged on the lower side of the nut (4), the limiting ring (5) and the nut (4) are in extrusion contact, the first pressing plate (6) slides with a connecting column (9), the connecting column (9) is fixed between the limiting ring (5) and the second pressing plate (7).

3. A device according to claim 2, wherein The surface of the nut (4) is fixed with an anti-skid ring.

4. A device according to any one of claims 1 to 3, wherein The surface of the communication pipe (14) is fixed with a threaded inner ring (15), the surface of the threaded inner ring (15) is threadedly connected with a threaded outer ring (16), and the feeding pipe (10) is fixed on the side end of the threaded outer ring (16).

5. A device according to claim 4, wherein The surface of the feeding pipe (10) is provided with an external thread, and the sealing plug (11) is threadedly connected on the surface of the feeding pipe (10).

6. A device according to claim 5, wherein The bottom end of the feeding pipe (10) is fixed with a silica gel semicircular head (12).

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