Medicine smearing device for otitis externa
By designing a combination of syringe and applicator, the problem of applying medication for otitis externa was solved, achieving precise application of medication and restoration of the microecology, relieving inflammation of the external auditory canal and promoting skin repair.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-03-31
AI Technical Summary
In the current technology, it is difficult to effectively apply medication to treat otitis externa, especially while keeping the external auditory canal clean and dry and avoiding water from entering, and traditional methods may damage the ear canal.
A drug application device including a syringe and an application apparatus is designed. The application apparatus includes an application tube, an application sleeve, an application port, an application head, and an angle adjuster. The application head is made of rubber and equipped with a wiping cotton. It can apply drugs into the ear canal and adjust the angle. It is equipped with a probe for observation and illumination.
It achieves precise application of medication, reduces damage to the ear canal, effectively treats external auditory canal inflammation, restores the microecological balance, relieves symptoms, and promotes skin repair.
Smart Images

Figure CN224056181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug application technology, and in particular to a drug application device for external otitis. Background Technology
[0002] If water accidentally gets into the ear, bacteria and fungi in the water can also enter. Living in particularly humid environments or frequently wearing earplugs or headphones can make the skin inside the ear too moist, increasing the risk of infection. Additionally, skin damage, fungal infections, and allergic reactions can all trigger otitis externa, primarily affecting the external auditory canal, a curved tube about 2.1–2.5 cm long that runs from the external auditory meatus to the tympanic membrane. Because the inner lining of the external auditory canal is covered with a layer of skin rich in sensory nerve endings, significant pain is felt during an otitis externa attack, mainly manifesting as ear itching, burning sensation in the ear canal, and ear pain. Severe cases may present with edema and effusion. In the early stages, patients may feel a burning sensation in the ear; as the condition progresses, the ear becomes swollen and the pain gradually intensifies. Treatment primarily involves applying antifungal medications, such as miconazole nitrate cream or clotrimazole cream, as prescribed by a doctor. While keeping the external auditory canal clean and dry, it is also important to avoid water entering the ear canal. Therefore, this device provides a medication application device for otitis externa. Utility Model Content
[0003] This utility model provides a drug application device for external otitis to solve the aforementioned technical problems.
[0004] The present invention adopts the following technical solution: it includes a syringe for extracting and applying medication and an application device for applying medication into the ear canal. The application device is sleeved at the injection port of the syringe and is connected to it. The application device includes an application tube, an application sleeve, an application port, an application head, and an angle adjuster for changing the angle of the application port. The application tube is sleeved at the injection port of the syringe and is connected to it. The application sleeve is rotatably connected to the end of the application tube. The application sleeve and the application tube are connected. The application port is located at the side end of the application sleeve and is connected to it. The application head is located at the end of the application sleeve. The angle adjuster is located at the beginning of the application tube and is connected to the application sleeve.
[0005] Furthermore, the angle adjuster includes an adjusting sleeve, an adjusting frame, an adjusting block, and a connecting rod. The first end of the application tube is surrounded by several limiting blocks. The adjusting sleeve is fitted onto the first end of the application tube and is rotatably connected. The adjusting frame is disposed outside the adjusting sleeve. The adjusting sleeve is provided with a limiting groove. The lower end of the adjusting block passes through the limiting groove and is located next to the corresponding limiting block. The adjusting frame and the adjusting block are rotatably connected. A torsion spring is provided at the rotatable connection between the adjusting frame and the adjusting block. One end of the connecting rod is connected to the adjusting sleeve and the other end is connected to the application sleeve.
[0006] Furthermore, the adjusting sleeve is provided with an indicator arrow, and the indicator arrow is at the same angle as the application nozzle.
[0007] Furthermore, the applicator head is made of rubber and is equipped with a wiping cotton pad.
[0008] Furthermore, the syringe is a small-capacity syringe with a volume of 1 ml.
[0009] Furthermore, the tip of the applicator is equipped with an exploration probe that can explore the inside of the ear canal. The exploration probe has an illumination function and can be connected to a smart device via Bluetooth for video imaging observation.
[0010] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:
[0011] This invention relates to a method for applying medication to patients with external otitis. The patient draws the required medication using a syringe, inserts the syringe into the desired area of the ear canal, and applies the medication through the syringe's push. This method is effective for fungal infections of the external otitis, where antifungal medications such as clotrimazole cream can be applied directly to the fungi in the external auditory canal, altering their environment and inhibiting their growth and reproduction. For inflammation caused by external auditory canal eczema, applying medications containing corticosteroids such as dexamethasone ointment can reduce allergic reactions and inflammation, relieving itching and swelling.
[0012] The application head is made of rubber and has a wiping cotton pad, which prevents damage to the patient's ear canal when the application head is inserted. The wiping cotton pad can be used to wipe the inside of the ear canal before applying the medication, as the inside of the ear canal may be moist, which could affect the treatment effect after the medication is applied. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the applicator in this utility model;
[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 for Figure 2 Enlarged view of section B in the middle.
[0018] Attached Figure
[0019] 1. Syringe; 2. Application device; 21. Application tubing; 22. Application sleeve; 23. Application port; 24. Application head; 25. Angle adjuster; 251. Adjustment sleeve; 252. Adjustment frame; 253. Adjustment block; 254. Connecting rod; 26. Limiting block; 27. Limiting groove; 28. Wiping cotton; 29. Indicator arrow. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0022] This utility model provides a drug application device for external otitis, including a syringe 1 for drug extraction and application and an application device 2 for applying drug into the ear canal. The application device 2 is sleeved on the injection port of the syringe 1 and is connected to it. The application device 2 includes an application tube 21, an application sleeve 22, an application port 23, an application head 24, and an angle adjuster 25 for changing the angle of the application port 23. The application tube 21 is sleeved on the injection port of the syringe 1 and is connected to it. The application sleeve 22 is rotatably connected to the end of the application tube 21 and is connected to the application tube 21. The application port 23 is located on the side end of the application sleeve 22 and is connected to it. The application head 24 is located at the end of the application sleeve 22. The angle adjuster 25 is located at the beginning of the application tube 21 and is connected to the application sleeve 22.
[0023] When a patient needs to apply medication for otitis externa, this device uses syringe 1 to draw the required medication. After drawing the medication, the patient holds syringe 1 and inserts the application device 2 into the desired area of the ear canal. The medication is applied by pushing the syringe 1. For otitis externa caused by fungal infection, applying antifungal drugs such as clotrimazole cream can directly target the fungi in the ear canal, altering their living environment and inhibiting their growth and reproduction. For inflammation caused by eczema in the ear canal, applying medications containing corticosteroids such as dexamethasone ointment can reduce allergic reactions and inflammation, relieving itching and redness.
[0024] This device can help treat external otitis, which can damage the skin and mucous membranes of the external auditory canal. Applying medication can provide conditions for the repair of damaged tissues. For example, medications containing growth factors, such as recombinant bovine basic fibroblast growth factor, can stimulate the proliferation and differentiation of skin cells in the external auditory canal and accelerate the repair of damaged skin. At the same time, some moisturizing and protective medications, such as petroleum jelly, can form a protective film on the skin surface to prevent external factors such as dust and water from further irritating the damaged skin, which is beneficial to the skin's self-repair.
[0025] The external auditory canal has its own microecological environment. Under normal circumstances, beneficial bacteria and harmful bacteria are in a balanced state. Otitis externa can disrupt this balance. Applying medication can not only eliminate harmful bacteria, but also restore the microecological balance of the external auditory canal and promote the recovery of a healthy environment in the external auditory canal through some medications containing probiotics, such as certain preparations containing lactic acid bacteria.
[0026] In a further preferred embodiment of this utility model, the angle adjuster 25 includes an adjusting sleeve 251, an adjusting frame 252, an adjusting block 253, and a connecting rod 254. A plurality of limiting blocks 26 are arranged around the first end of the application pipe 21. The adjusting sleeve 251 is sleeved on the first end of the application pipe 21 and is rotatably connected. The adjusting frame 252 is disposed outside the adjusting sleeve 251. The adjusting sleeve 251 is provided with a limiting groove 27. The lower end of the adjusting block 253 passes through the limiting groove 27 and is located beside the corresponding limiting block 26. The adjusting frame 252 and the adjusting block 253 are rotatably connected. A torsion spring is provided at the rotatable connection between the adjusting frame 252 and the adjusting block 253. One end of the connecting rod 254 is connected to the adjusting sleeve 251, and the other end is connected to the application sleeve 22. The adjusting sleeve 251 is provided with an indicator arrow 28, and the indicator arrow 28 has the same angle as the application port 23.
[0027] When medical staff apply medication for otitis externa, they first use syringe 1 to extract the required medication. After extraction, they hold syringe 1 and insert the application device 2 into the desired location in the patient's ear canal. By pushing the syringe 1, the medication inside is pushed into the application tube 21 and finally ejected through the application port 23, thus applying the medication to the desired location in the patient's ear canal. Depending on the application location, the lower end of the adjusting block 253 can be disengaged from the corresponding limiting block 26 by pressing the adjusting block 253. At this time, the adjusting sleeve 251 is rotatably connected to the application tube 21, allowing the adjusting sleeve 251 to rotate and drive the connecting rod 254. This ultimately adjusts the angle of the application port 23 on the application sleeve 22 to the desired medication application location. The medication can then be applied by pushing the syringe 1. This allows the angle of the application port 23 to be adjusted according to the different locations in the patient's ear canal to achieve the corresponding medication application effect.
[0028] In a further preferred embodiment of this utility model, the applicator head 24 is made of rubber and is provided with wiping cotton.
[0029] By using a rubber head 24 and attaching a wiping cotton pad to it, the head 24 will not cause damage to the patient's ear canal during insertion. The wiping cotton pad can be used to clean the inside of the ear canal before applying the medication, as the inside of the ear canal may be moist, which could affect the therapeutic effect of the medication.
[0030] In a further preferred embodiment of the present invention, the syringe 1 is a 1ML small-capacity syringe 1;
[0031] Because syringe 1 draws out ointment-type medication and applies it to the patient's ear canal, and because syringe 1 is a small-capacity syringe with a capacity of 1ml, the force of the syringe 1's push and draw can make the application of medication to the patient more convenient and effortless.
[0032] In a further preferred embodiment of this utility model, the head end of the applicator 24 is provided with an exploration probe that can explore the field of vision inside the ear canal. The exploration probe has an illumination function and can be connected to a smart device via Bluetooth for video imaging observation through the smart device.
[0033] When applying medication to a patient's ear canal, the probe 24 is inserted into the ear canal. At this time, the probe is also connected to a smart device. The video image from the smart device is displayed to the medical staff, which can accurately apply the medication to the area where the patient needs treatment and avoid damage to the patient's ear canal.
[0034] This device uses a medical endoscope probe, specifically a medical fiberoptic bronchoscope, which is a medical device with a miniature probe and illumination function. Its probe is very thin and can be inserted into the trachea and bronchi through the nose or mouth. The fiber optic cable inside the probe transmits illumination light, illuminating the internal structure of the bronchi. Doctors can observe the condition of the bronchial mucosa, which is used to diagnose lung diseases such as pneumonia, lung cancer, and bronchiectasis. It can detect early lesions and plays a crucial role in the diagnosis and treatment planning of diseases.
[0035] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A medicament smearing device for external otitis, characterized by: The application relates to an injection device (1) for medicine extraction and smearing; A smearing device (2) for medicine smearing into an ear canal; The smearing device (2) is sleeved at the injection port of the injection device (1) and is in communication, the smearing device (2) comprises a smearing pipeline (21), a smearing sleeve (22), a smearing port (23), a smearing head (24) and an angle adjuster (25) for changing the angle of the smearing port (23); The smearing pipeline (21) is sleeved at the injection port of the injection device (1) and is in communication, the smearing sleeve (22) is rotationally connected at the tail end of the smearing pipeline (21), the smearing sleeve (22) is in communication with the smearing pipeline (21), the smearing port (23) is arranged at the side end of the smearing sleeve (22) and is in communication, the smearing head (24) is arranged at the end of the smearing sleeve (22), and the angle adjuster (25) is arranged at the head end of the smearing pipeline (21) and is connected with the smearing sleeve (22). The angle adjuster (25) comprises an adjusting sleeve (251), an adjusting frame (252), an adjusting block (253) and a connecting rod (254), the head end of the smearing pipeline (21) is surrounded by a plurality of limiting blocks (26), the adjusting sleeve (251) is sleeved at the head end of the smearing pipeline (21) and is rotationally connected, the adjusting frame (252) is arranged outside the adjusting sleeve (251), the adjusting sleeve (251) is provided with a limiting groove (27), the lower end of the adjusting block (253) penetrates through the limiting groove (27) and is located beside the corresponding limiting block (26), the adjusting frame (252) is rotationally connected with the adjusting block (253), a torsion spring is arranged at the rotationally connected position of the adjusting frame (252) and the adjusting block (253), and one end of the connecting rod (254) is connected to the adjusting sleeve (251) and the other end is connected to the smearing sleeve (22).
2. A medicament application device for otitis externa as claimed in claim 1, characterized in that: The adjusting sleeve (251) is provided with an indicating arrow (28), and the indicating arrow (28) is the same as the angle of the smearing port (23).
3. A medicament application device for otitis externa as claimed in claim 2, characterized in that: The smearing head (24) is made of rubber, and the smearing head (24) is provided with wiping cotton.
4. The otic pharmaceutical applicator of claim 1, wherein: The injection device (1) is a small-volume injection device (1) with a capacity of 1ML.
5. The otic pharmaceutical applicator of claim 1, wherein: The head end of the smearing head (24) is internally provided with an exploration probe capable of exploring the visual field inside the ear canal, the exploration probe has an illumination function, the exploration probe can be connected with a smart device through Bluetooth and can be observed through video imaging of the smart device.
6. A medicament application device for otitis externa as defined in claim 1, characterized in that