Lighted ear pick
Patent Information
- Application Number
- CN202520926643.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-05-12
AI Technical Summary
LED光源直接照射耳道狭窄空间时,光线经耳道壁多次反射形成高亮度环境,使用者眼部若贴近观察口(距离<5cm)会产生眩光效应,引发瞳孔痉挛性收缩;而当保持安全观察距离(>10cm)时,光强衰减又导致耳道深部区域(>15mm)清晰度不足,形成"近距刺眼-远距模糊"的技术矛盾
1、光学传导优化,消除眩光与照明矛盾:
Smart Images

Figure CN224711235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities and equipment technology, specifically to a light-up ear pick. Background Technology
[0002] In the field of personal care, ear picks are commonly used tools for cleaning ear canals, and their safety and ease of use have always been the core directions for technological improvement. Traditional metal or plastic ear picks, due to their simple structure, make it difficult for users to directly observe the internal environment of the ear canal. During operation, improper depth control or accidental collisions can easily lead to medical risks such as ear canal scratches or even eardrum perforation.
[0003] To address the aforementioned issues, a new type of ear pick with an ear canal illumination device has been developed. This design utilizes the directional lighting characteristics of LEDs to provide visual assistance to the internal environment of the ear canal during operation, which theoretically can improve operational accuracy and reduce the risk of accidental injury.
[0004] However, the above technologies have revealed the following technical shortcomings in practical applications:
[0005] 1. Problems related to light source stimulation; When an LED light source directly illuminates the narrow space of the ear canal, the light is reflected multiple times by the ear canal wall, creating a high-brightness environment. If the user's eyes are close to the observation port (distance < 5cm), it will cause a glare effect, triggering spasmodic pupil contraction. However, when a safe observation distance is maintained (> 10cm), the light intensity attenuation leads to insufficient clarity in the deep areas of the ear canal (> 15mm), creating a technical contradiction of "glare at close range - blurry at long range".
[0006] 2. Risk of cumulative thermal effects; During continuous operation, the heat generated by the LED module (power > 0.1W) is conducted to the ear canal tissue through the metal spoon body. Thermal imaging tests show that after 5 minutes of continuous use, the temperature of the spoon head can reach 42℃, which exceeds the human comfort threshold (38℃) and poses a risk of low-temperature burns. Utility Model Content
[0007] In view of this, the present invention provides a light-emitting ear pick. The present invention can use an optical fiber to make a light guide rod to guide the light emitted by the diode, so that the light can illuminate the environment inside the ear canal without causing irritation to the user's eyes.
[0008] To solve the above-mentioned technical problems, this utility model provides a light-emitting ear pick, including a handle, which is the main body of the ear pick, and the handle facilitates the operation of the entire ear pick.
[0009] The light guide rod, which is fixed to the end of the handle, is made of optical fiber. The optical fiber can soften the brightness of the light from the diode and conduct the light.
[0010] The fixing component is fixed to the end of the handle and is used to fix the position of the light guide rod and wrap the outer side of the light guide rod. The fixing component can prevent the light guide rod from deforming and prevent the optical fiber from escaping from the side of the light guide rod.
[0011] The spoon head, which is fixed to the fixed component at the end away from the handle, can be used to clean debris from the ear canal.
[0012] The light source is positioned corresponding to the end of the light guide rod furthest from the spoon head, allowing the light guide rod to transmit light from the light source to the spoon head.
[0013] The fixing component is a cylindrical probe cylinder, and the light guide rod is located inside the inner ring of the probe cylinder. The probe cylinder and the light guide rod are interference-fitted.
[0014] The spoon head is made of steel wire bent into an arc-shaped rim structure. The two ends of the steel wire are fixed to the end of the fixing component. The spoon head made of steel wire can reduce the discomfort when cleaning ears.
[0015] The spoon head has a hollowed-out section in the middle, and the light guide rod and the hollowed-out section in the middle of the spoon head are arranged in a linear pattern. The light emitted by the light guide rod can pass through the spoon head and shine on the inner wall of the ear hole.
[0016] The hollowed-out part in the middle of the spoon head is filled with transparent material, through which the light emitted by the light guide can pass. The transparent material is made of glue, which can hold in debris and still illuminate the ear piercing to some extent when the debris does not completely cover the transparent material.
[0017] The handle has a chamber containing a battery pack and a PCB board. The light source is a diode and is fixed to one side of the PCB board. The battery pack can indirectly power the light source through the PCB board. The corresponding chamber also has a through hole at the end of the handle, which is connected to the chamber. The probe tube is located in the through hole and can guide the probe tube. One end of the light guide rod is fixed to the PCB board and abuts against the light-emitting surface of the diode.
[0018] The PCB board has several limiting seats on its side end, and the limiting seats include several elastic limiting rings. The elastic limiting rings have openings, through which the light guide rod can be placed inside the limiting rings. The light guide rod can be disassembled and replaced through the limiting seats.
[0019] The PCB board is also equipped with a control switch, which can be used to turn the diode on and off.
[0020] The cavity is also equipped with a fixing sleeve for the corresponding PCB board. The PCB board can be inserted into the fixing sleeve to support and fix the position of the PCB board. The fixing sleeve can prevent the PCB board from deforming when the control switch is pressed.
[0021] The handle includes a force-applying section and a sealing section.
[0022] The force-applying section has a cylindrical structure with a chamber located inside. The sealing section is funnel-shaped with a perforation located on it. The larger diameter end of the sealing section is screwed onto the end of the force-applying section. A plug is also provided on the force-applying section corresponding to the chamber. The plug can prevent the battery pack PCB board and other components from falling out of the chamber.
[0023] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Optimized optical transmission to eliminate the conflict between glare and illumination: The light guide rod made of optical fiber replaces the traditional direct LED lighting. It uses the principle of total internal reflection of optical fiber to soften the light, avoids high-brightness light from directly entering the eyes, and completely eliminates the risk of glare when observing at close range.
[0024] 2. Heat insulation design eliminates the risk of low-temperature burns: The LED light source achieves non-contact light transmission through the light guide rod, and the heat is completely isolated in the handle cavity. The measured surface temperature of the spoon head after 30 minutes of continuous operation is ≤36℃, which is significantly lower than the human safety threshold (38℃), thus fundamentally eliminating the risk of heat accumulation.
[0025] 3. Multifunctional spoon head, balancing cleaning and light transmission: The curved steel wire structure ensures cleaning efficiency while creating a "light-transmitting window" through a hollow design in the middle filled with transparent glue. Under normal conditions, light can penetrate the transparent adhesive and directly illuminate the ear canal wall, achieving illumination without blind spots; Even if earwax or other foreign matter adheres to the spoon head, some light can still be transmitted through the hollow area to maintain basic lighting function; After the glue cures, it forms a smooth surface, preventing the steel wire edges from scratching the ear canal and making it easy to clean and maintain.
[0026] 4. Modular structure enhances practicality and durability: The elastic limiting ring and the limiting seat form a quick-release structure, and the light guide rod replacement time is ≤10 seconds, reducing the later maintenance cost. The fixed sleeve and split handle design (force application section + sealing section) achieves precise alignment, ensuring the stability of the optical path, and also facilitates battery replacement; 2. Enhanced ergonomics for improved operational precision: The interference fit design between the probe tube and the light guide rod gives the spoon head a ±3° micro-adjustment flexibility, which can adapt to the bending angle of the ear canal and reduce operating resistance. The grip design with a φ12mm diameter force application section conforms to Asian hand size data, and the anti-slip texture on the surface improves the vertical force application accuracy to the 0.1N level, significantly reducing the probability of misoperation. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of a luminous ear pick according to the present invention; Figure 2 This utility model Figure 1 Schematic diagram of the structure at point A; Figure 3 This utility model Figure 1 Schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the handle of this utility model.
[0028] Explanation of reference numerals in the attached figures: 100. Handle; 110. Force application section; 111. Chamber; 120. Sealing section; 121. Perforation; 200. Light guide rod; 300, Limiting seat; 301, Limiting ring; 302, Opening; 400. Fixed components; 500, spoon head; 600. Battery pack; 601. PCB board; 602. Light source; 603. Fixing sleeve. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0030] This embodiment provides a light-up ear pick, such as Figure 1 , 4As shown: The device includes a pen-tube shaped handle 100 and a light guide rod 200 fixed to the end of the handle 100. The light guide rod 200 is made of optical fiber. A fixing component 400 is also provided at the end of the handle 100. The fixing component 400 is located on the outer surface of the light guide rod 200 and can provide support for the light guide rod 200 and wrap around its outer surface, thereby preventing deformation of the light guide rod 200 and preventing light from escaping from the outer wall of the light guide rod 200. The end of the light guide rod 200 away from the handle 100 is on the same horizontal plane as the end of the fixing component 400. The end of the fixing component 400 away from the handle 100 is also provided with a spoon head 500. Correspondingly, the light guide rod 200 is also provided with a light source 602. The light source 602 is located on the end of the light guide rod 200 away from the spoon head 500. That is, the light source 602 can illuminate the end of the light guide rod 200, and the light guide rod 200 can transmit the light to the other end to illuminate the ear canal, thereby cleaning the ear canal.
[0031] Specifically, the fixing component 400 is a cylindrical probe cylinder, such as... Figure 2 As shown: The light guide rod 200 can be fixed in position by the probe cylinder inside the probe cylinder through interference fit, thereby limiting its deformation. The probe cylinder can also be located on the outer surface of the light guide rod 200 to cover the light guide rod 200, thereby preventing the light inside the light guide rod 200 from escaping outward from the side wall, so that the light can be concentrated inside the ear canal.
[0032] Furthermore, the spoon head 500 is formed by bending steel wire to create an arc-shaped spoon edge structure, such as... Figure 3 As shown: The two ends of the steel wire are fixed to the end of the fixing component 400, that is, the spoon head 500 composed of steel wire can avoid causing discomfort to the human body when cleaning debris in the ear canal.
[0033] The spoon head 500 has a hollowed-out section in the middle. The light guide rod 200 and the hollowed-out section in the middle of the spoon head 500 are arranged in a linear shape, so that the light can pass through the hollowed-out section, making it easier to clean the ear canal.
[0034] Furthermore, the hollowed-out part in the middle of the spoon head 500 is filled with transparent glue. After the transparent glue dries, it forms a transparent film, which allows light from the spoon head 500 to pass through. Thus, even when the transparent film is not completely blocked by debris, light can still pass through the transparent film to illuminate the environment inside the ear canal.
[0035] Furthermore, the handle 100 has a cavity 111 inside, such as Figure 4As shown: The chamber 111 contains a PCB board 601 and a battery pack 600. The PCB board 601 is connected to the battery pack 600. Corresponding to the chamber 111, the handle 100 also has a through hole 121. The two ends of the through hole 121 are connected to the end of the chamber 111 and the end of the handle 100, respectively. The probe tube is fixed in the through hole 121. The end of the light source 602 is fixed on the PCB board 601. The light source 602 is a diode, and the light-emitting surface of the diode is in contact with the end of the light guide rod 200. Thus, when the diode is controlled to emit light by the PCB board 601, the diode can transmit light into the light guide rod 200, thereby indirectly providing illumination for the ear canal.
[0036] Furthermore, multiple limit seats 300 are fixed on the PCB board 601, such as... Figure 2 As shown: Multiple limiting seats 300 are arranged in a linear pattern. Each limiting seat 300 includes several limiting rings 301. The limiting rings 301 have a circular cross-section and each limiting ring 301 has an opening 302. The multiple openings 302 are located in the same direction. At the same time, the limiting rings 301 are elastic structures. The light guide rod 200 is fixed in the inner ring of the multiple limiting rings 301. The elastic limiting rings 301 can realize the quick assembly and disassembly of the light guide rod 200, which can meet the disassembly of the light guide rod 200, thereby facilitating the maintenance or replacement of the light guide rod 200.
[0037] Preferably, the PCB board 601 is also provided with a control switch, which can be used to turn the diode on or off, thereby turning the lighting function on or off. The cavity 111 is also provided with a fixing sleeve 603 corresponding to the PCB board 601. When the PCB board 601 is fixed in the cavity 111, it can be located inside the PCB board 601, so that the PCB board 601 will not deform under pressure when the control switch is pressed.
[0038] In this embodiment, the fixing sleeve 603 is composed of two sections and is fixed together by a snap-fit structure. Specifically, in use, the fixing sleeve 603 can be first installed on the outside of the PCB board 601 to limit the PCB board 601. Then, the fixing sleeve 603 and the PCB board 601 are installed into the cavity 111. Thus, when the control switch is pressed, the fixing sleeve 603 can indirectly transfer the pressure to the inner wall of the cavity 111, which can prevent the PCB board 601 from deforming when pressed.
[0039] Specifically, the handle 100 includes a force-applying section 110 and a sealing section 120, such as Figure 4As shown: The force-applying section 110 has a cylindrical structure, and the chamber 111 is located at the end of the force-applying section 110. The force-applying section 110 also has a movable hole corresponding to the control switch. The movable hole is connected to the chamber 111, so that the control switch can be easily pressed through the movable hole. The sealing section 120 is funnel-shaped, and a through hole 121 is provided through the sealing section 120 along the axial direction. The through hole 121 is connected to both ends of the sealing section 120, so that the through hole 121 can be connected to the chamber 111. The end of the sealing section 120 with a larger diameter is connected to the force-applying section 110 by a threaded engagement. The end of the force-applying section 110 away from the sealing section 120 is also provided with a plug. The plug can prevent the PCB board 601 and the battery pack 600 from falling out of the chamber 111.
[0040] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A luminous ear pick, characterized in that: include; The handle (100) is the main component of the ear pick; A light guide rod (200) is fixed to the end of a handle (100), and the light guide rod (200) is made of optical fiber; A fixing component (400) is fixed to the end of the handle (100) and is used to fix the position of the light guide (200) and to wrap the outer side of the light guide (200); A spoon head (500) is fixed to the end of the fixing assembly (400) away from the handle (100); A light source (602) is positioned on the end of the light guide rod (200) away from the spoon head (500).
2. The luminous ear pick as described in claim 1, characterized in that: The fixing component (400) is a cylindrical probe cylinder, and the light guide rod (200) is located inside the inner ring of the probe cylinder.
3. A luminous ear pick as described in claim 1 or 2, characterized in that: The spoon head (500) is formed by bending steel wire to form an arc-shaped spoon edge structure, and the two ends of the steel wire are fixed to the ends of the fixing component (400).
4. The luminous ear pick as described in claim 3, characterized in that: The spoon head (500) has a hollowed-out section in the middle, and the light guide rod (200) and the hollowed-out section in the middle of the spoon head (500) are arranged in a linear pattern.
5. A luminous ear pick as described in claim 4, characterized in that: The hollowed-out part in the middle of the spoon head (500) is filled with transparent material, and the light emitted from the light guide rod (200) can pass through the transparent material.
6. The luminous ear pick as described in claim 5, characterized in that: The transparent material is made of glue.
7. A luminous ear pick as described in claim 2, characterized in that: The handle (100) has a cavity (111) inside, which houses a battery pack (600) and a PCB board (601). The light source (602) is a diode and is fixed to one side of the PCB board (601). Corresponding to the cavity (111), the handle (100) also has a through hole (121) at the end. The through hole (121) is connected to the cavity (111). The probe tube is located inside the through hole (121). One end of the light guide rod (200) is fixed to the PCB board (601) and abuts against the light-emitting surface of the diode.
8. A luminous ear pick as described in claim 7, characterized in that: The PCB board (601) has several limiting seats (300) on its side end. Each limiting seat (300) includes several elastic limiting rings (301). Each elastic limiting ring (301) has an opening (302) through which the light guide rod (200) can be placed inside the limiting ring (301).
9. A luminous ear pick as described in claim 7, characterized in that: The PCB board (601) is also provided with a control switch, which can be used to turn the diode on and off. The chamber (111) is also equipped with a fixing sleeve (603) corresponding to the PCB board (601). The PCB board (601) can be inserted into the fixing sleeve (603) to support and fix the position of the PCB board (601).
10. A luminous ear pick as described in claim 9, characterized in that: The handle (100) includes a force-applying section (110) and a sealing section (120); The force-applying section (110) has a cylindrical structure, the chamber (111) is located inside the force-applying section (110), the sealing section (120) is funnel-shaped, the perforation (121) is located on the sealing section (120), the end of the sealing section (120) with a larger diameter is screwed to the end of the force-applying section (110), and the force-applying section (110) is also provided with a plug corresponding to the chamber (111).