A multifunctional otoscope

Abstract

This utility model discloses a multifunctional otoscope, including a handle. The handle is equipped with a power supply unit, a lamp bead component, and a switch unit. The lamp bead component is mounted on the top of the handle, and the power supply unit is connected to the lamp bead component via the switch unit. The lamp bead component has an external thread on its top outer surface. A fitting auxiliary component, either an otoscope part or a pen lamp part, is detachably mounted on the handle. Both the otoscope part and the pen lamp part have threaded holes at their bottoms that engage with the external thread. The pen lamp part includes a push rod and a pen lamp cover. The pen lamp cover has a threaded hole at its bottom that engages with the external thread. The bottom of the push rod is positioned between the pen lamp cover and the lamp bead component, and the top of the push rod passes through the pen lamp cover and is positioned above the top of the pen lamp cover. This utility model improves ease of use and reduces costs.

Description

Technical Field

[0001] This utility model relates to an otoscope, and more particularly to a multifunctional otoscope. Background Technology

[0002] An otoscope is an important tool for examining the ear for any abnormalities. Traditional otoscopes mainly use a funnel-shaped speculum to illuminate the inside of the ear by shining a light source, and use a magnifying glass mounted on the otoscope to observe the condition of the inside of the ear. Its function is often limited to simply examining the inside of the ear canal.

[0003] However, in otological clinical examinations and hearing aid fitting, ear canal examination and ear impression making are two crucial steps. In the traditional procedure, the doctor or audiologist first uses an otoscope to observe the ear canal, and then switches to an LED pen light with a pusher to push the cotton smother deep into the ear canal. The purpose of this is to ensure that the ear impression material can be accurately filled into the corresponding position.

[0004] The methods described above are more suitable for hospitals or fitting centers. Due to the increasing demand for hearing aids, especially among the elderly or those with mobility issues, there is a need to develop portable and practical otoscopes for use in non-fixed locations and communities. Summary of the Invention

[0005] The purpose of this invention is to provide a multifunctional otoscope, which improves ease of use and reduces operating costs by using this structure.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a multifunctional otoscope, including a handle, on which a power supply unit, a lamp bead component, and a switch unit are provided. The lamp bead component is installed on the top of the handle, the outer end of the switch unit is disposed on the outer wall of the handle, and the power supply unit is disposed inside the handle.

[0007] The top outer surface of the lamp bead component is provided with an external thread, and a fitting auxiliary component is detachably installed on the handle. The bottom of the fitting auxiliary component is provided with a screw hole that mates with the external thread.

[0008] The fitting auxiliary component is an otoscope or a pen lamp, and the bottom of the otoscope and the pen lamp are provided with screw holes that are screwed into the external thread.

[0009] The pen light unit includes a push rod and a pen light cover. The bottom of the pen light cover is provided with a screw hole that is screwed into the external thread. The bottom of the push rod is located between the pen light cover and the lamp bead component. The top of the push rod passes through the pen light cover and is located above the top of the pen light cover.

[0010] In the above technical solution, the power supply unit is in contact with or connected to the bottom of the lamp bead component. When the switch unit is in the first position, the power supply unit supplies power to the lamp bead component; when the switch unit is in the second position, the power supply unit stops supplying power to the lamp bead component.

[0011] In the above technical solution, the top of the pen lamp cover is provided with a through hole communicating with the screw hole. The diameter of the through hole is smaller than the diameter of the screw hole. The bottom outer surface of the push rod is provided with an annular protrusion. The outer diameter of the annular protrusion is larger than the diameter of the through hole. The annular protrusion is disposed in the screw hole below the through hole. The top of the push rod passes through the through hole and is disposed above the top of the pen lamp cover.

[0012] In the above technical solution, the bottom of the push rod abuts against the top surface of the lamp bead component, and the top surface of the annular protrusion abuts against the top surface of the screw hole;

[0013] And / or, the through hole and the screw hole are coaxially arranged;

[0014] And / or, the bottom surface of the annular protrusion is flush with the bottom surface of the push rod, and the bottom surface of the annular protrusion abuts against the top surface of the lamp bead component.

[0015] In the above technical solution, the push rod located above the pen lamp cover has a tapered structure that is smaller at the top and larger at the bottom;

[0016] And / or, the top of the push rod is an arc-shaped structure or a spherical structure.

[0017] In the above technical solution, the push rod is a light-transmitting push rod;

[0018] And / or, the outer surface of the push rod is provided with scale markings, which are arranged to extend along the axial direction of the push rod.

[0019] In the above technical solution, the lamp bead component includes a lamp bead holder and a lamp bead. The top of the handle is provided with a mounting screw hole, and the bottom outer surface of the lamp bead holder is provided with a first external thread that is screwed into the mounting screw hole. The external thread is provided on the upper outer surface of the lamp bead holder.

[0020] The lamp holder has a lamp mounting hole, and the two ends of the lamp mounting hole are respectively connected to the top surface and the bottom surface of the lamp holder. The lamp is installed in the lamp mounting hole.

[0021] In the above technical solution, a pen clip is also installed on the outer surface of the handle, and the pen clip is provided with a sliding groove, and the outer end of the switch part is slidably disposed in the sliding groove.

[0022] In the above technical solution, the otoscope part includes a lens housing, a conical head, an optical fiber, an optical fiber mount, a lens, and a lens cavity. The first end of the lens cavity is installed inside the lens housing, and the second end of the lens cavity is located outside the lens housing. The lens and the conical head are respectively located at both ends of the lens housing. The lens is located inside the lens housing on the first end side of the lens cavity and is positioned directly opposite the lens cavity. The conical head is fitted onto the outside of the second end of the lens cavity, and the first end of the conical head is connected to the lens housing. The optical fiber mount is installed on the lens housing below the lens cavity, and the optical fiber is installed inside the optical fiber mount.

[0023] The screw hole is located at the bottom of the optical fiber holder, and the optical fiber holder is screwed to the external thread on the top of the lamp bead component via the screw hole.

[0024] In the above technical solution, a light-shielding ring is also provided between the lens housing and the conical head. The first end of the light-shielding ring is connected to the lens housing, the first end of the conical head is connected to the second end of the light-shielding ring, and the second end of the conical head is located outside the second end of the lens cavity.

[0025] And / or, the light-shielding ring and the conical head are coaxially disposed outside the lens cavity outside the lens housing;

[0026] And / or, the end face of the second end of the conical head is flush with the end face of the second end of the lens cavity, or the end face of the second end of the lens cavity is located inside the end face of the second end of the conical head.

[0027] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0028] 1. In this utility model, a fitting auxiliary component is detachably installed on the handle. The fitting auxiliary component is an otoscope part or a pen lamp part. In this way, the multifunctional otoscope can combine the optical inspection function and the cotton dam pushing function, realize the switching between different functions, effectively improve the convenience of use, and is easy to carry and store, thus expanding the scope of application. It can also reduce the equipment used for ear canal examination and fitting, thereby reducing costs.

[0029] 2. In this utility model, scale markings are also set on the push rod, which can effectively improve the accuracy of operation and improve the safety of operation. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model (the fitting auxiliary component is the pen lamp part);

[0031] Figure 2This is a structural schematic diagram of Embodiment 1 of the present utility model (the fitting auxiliary component is the otoscope part);

[0032] Figure 3 yes Figure 2 Exploded view;

[0033] Figure 4 This is a cross-sectional view of the handle in Embodiment 1 of this utility model (the LED component is not shown);

[0034] Figure 5 This is a schematic diagram of the connection structure between the pen lamp part and the lamp bead component in Embodiment 1 of this utility model;

[0035] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure;

[0036] Figure 7 This is an exploded view of the pen lamp section in Embodiment 1 of this utility model;

[0037] Figure 8 This is a cross-sectional structural diagram of the otoscope portion in Embodiment 1 of this utility model.

[0038] The components include: 1. Handle; 11. Mounting screw hole; 12. Pen clip; 2. Power supply unit; 3. Lamp bead assembly; 31. Lamp bead holder; 32. Lamp bead; 310. Lamp bead mounting hole; 4. Switch unit; 5. Screw hole; 6. Earpiece unit; 61. Lens housing; 62. Tapered head; 63. Optical fiber; 64. Optical fiber holder; 65. Lens lens; 66. Lens inner cavity; 67. Light shield ring; 7. Pen light unit; 71. Push rod; 72. Pen light cover; 710. Scale markings; 711. Annular protrusion; 720. Through hole. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0040] Example 1: See Figure 1-8 As shown, a multifunctional otoscope includes a handle 1, on which a power supply unit 2, an LED component 3, and a switch unit 4 are disposed. The LED component 3 is mounted on the top of the handle 1, the outer end of the switch unit 4 is disposed on the outer wall of the handle 1, and the power supply unit 2 is disposed inside the handle 1.

[0041] The top outer surface of the lamp bead component 3 is provided with an external thread, and the handle 1 is detachably mounted with a fitting auxiliary component. The bottom of the fitting auxiliary component is provided with a screw hole 5 that mates with the external thread.

[0042] The fitting auxiliary component is an otoscope part 6 or a pen light part 7. The bottom of the otoscope part 6 and the pen light part 7 are provided with a screw hole 5 that is screwed into the external thread.

[0043] The pen light unit 7 includes a push rod 71 and a pen light cover 72. The bottom of the pen light cover 72 is provided with a screw hole 5 that is screwed into the external thread. The bottom of the push rod 71 is located between the pen light cover 72 and the lamp bead component 3. The top of the push rod 71 passes through the top surface of the pen light cover 72 and is located above the top of the pen light cover 72.

[0044] In this embodiment, the power supply unit supplies power to the LED component, while the switch unit controls the connection between the power supply unit and the LED component, thereby controlling the LED component to light up or turn off. When an ear canal examination is required, the otoscope unit and the LED component are connected. The otoscope unit is screwed into the screw hole of the otoscope unit and the external thread of the LED component to connect the otoscope unit to the handle. Then, the switch unit connects the power supply unit and the LED component electrically, causing the LED component to light up. The user then inserts the otoscope unit into the ear canal to observe the ear canal condition, thus completing the ear canal examination. Before making an ear impression, a cotton pad needs to be pushed deep into the ear canal to ensure that the ear impression material is accurately filled to the appropriate depth. At this time, the otoscope unit is removed from the handle, and the push rod and pen light cover are installed on the handle. The push rod is fixed by screwing the pen light cover and the external thread. Then, the switch unit is controlled to light up the LED component, so that the light from the LED component can be transmitted to the push rod, which pushes the cotton pad into the ear canal. This method uses a single handle to perform ear canal examination and cotton swab insertion, making it convenient to carry, cheaper, and more functional.

[0045] The power supply unit is in contact with or connected to the bottom of the lamp bead component. When the switch unit is in the first position, the power supply unit supplies power to the lamp bead component; when the switch unit is in the second position, the power supply unit stops supplying power to the lamp bead component.

[0046] Taking a power supply unit using a battery and electrode connecting plates (or wires) as an example, there are two electrode connecting plates, each connected to the positive and negative terminals of the battery. The LED chip is connected to one of the electrode connecting plates. A switch is positioned between the two electrode connecting plates. When the switch is in the first position, the two electrode connecting plates are connected, completing the circuit and turning on the LED chip. When the switch is in the second position (the first and second positions can be up / down, inward / outward, or other methods, i.e., the switch can be pushed up / down or pressed inward / outward), the connection between the two electrode connecting plates is broken, turning off the LED chip. Of course, other structures are also possible, as long as the switch controls the connection or disconnection of the power supply to the LED chip. For example, the bottom of the electrode connecting piece contacts the bottom of the power supply unit (the bottom is the negative electrode), the bottom of the lamp bead component contacts the top of the power supply unit (the top is the positive electrode), the inner side of the switch unit is a conductive element, and the inner side of the switch unit is always in contact with the electrode connecting piece. When the switch unit is in the second position (the downward position), the switch unit only contacts the electrode connecting piece. When the switch unit moves upward to the first position, the upper inner side of the switch unit contacts the lamp bead component, thereby connecting the positive and negative electrodes of the power supply unit and the circuit of the lamp bead component.

[0047] The push rod is a light-transmitting push rod (e.g., made of transparent material), so that the light emitted by the lamp bead component can be seen through the push rod, which makes it easier for the operator to move the cotton swab by pushing the multi-functional otoscope through the push rod, ensuring the convenience and safety of the operation.

[0048] The outer surface of the push rod 71 is provided with a scale mark 710, which extends along the axial direction of the push rod 71. When the push rod pushes the cotton swab into the ear canal, the scale mark can be used to know the depth of the cotton swab into the ear canal, ensuring the accuracy of ear impression making and improving the convenience of operation.

[0049] See Figure 5-7 As shown, the top of the pen lamp cover 72 is provided with a through hole 720 communicating with the screw hole 5. The diameter of the through hole 720 is smaller than the diameter of the screw hole 5. The bottom outer surface of the push rod 71 is provided with an annular protrusion 711. The outer diameter of the annular protrusion 711 is larger than the diameter of the through hole 720. The annular protrusion 711 is disposed in the screw hole 5 below the through hole 720, and the thickness of the annular protrusion 711 is smaller than the depth of the screw hole 5. The top of the push rod 71 passes through the through hole 720 and is disposed above the top of the pen lamp cover 72.

[0050] The bottom of the push rod 71 abuts against the top surface of the lamp bead component 3, and the top surface of the annular protrusion 711 abuts against the top surface of the screw hole 5;

[0051] The through hole 720 is coaxially arranged with the screw hole 5;

[0052] The bottom surface of the annular protrusion 711 is flush with the bottom surface of the push rod 71, and the bottom surface of the annular protrusion 711 abuts against the top surface of the lamp bead component 3.

[0053] In this method, during the installation of the pen lamp, the top of the push rod is inserted from the bottom of the screw hole upwards, then through the through hole and up to the top of the pen lamp cover, until the annular protrusion enters the screw hole. Then, the screw hole of the pen lamp cover and the external thread of the LED component are screwed together until the top surface of the annular protrusion contacts the top surface of the screw hole, and the bottom surface of the push rod contacts the top surface of the LED component, thus completing the installation of the pen lamp. After the pen lamp is installed, the axis of the LED component and the axis of the push rod coincide. In this embodiment, the handle has a columnar structure; therefore, the axes of the push rod and the handle coincide or are parallel. Preferably, the axis of the push rod coincides with the axis of the handle for easy gripping.

[0054] More preferably, the push rod located above the pen light cover has a tapered structure that is smaller at the top and larger at the bottom. In this way, the tapered push rod can be inserted into the ear canal more easily to push the cotton pad and also prevent damage to the ear canal. At the same time, the top of the push rod has an arc-shaped or spherical structure, preferably a spherical structure, so that even if the top of the push rod comes into contact with the ear canal, it will not scratch the ear canal, ensuring safety during use.

[0055] See Figure 4 , 6 As shown, the lamp bead component 3 includes a lamp bead holder 31 and a lamp bead 32. The top of the handle 1 is provided with a mounting screw hole 11. The bottom outer surface of the lamp bead holder is provided with a first external thread that is screwed into the mounting screw hole. The external thread is provided on the upper outer surface of the lamp bead holder 31. The lamp bead can be an LED lamp bead.

[0056] The lamp holder 31 is provided with a lamp mounting hole 310. The two ends of the lamp mounting hole 310 are respectively connected to the top surface and the bottom surface of the lamp holder 31. The lamp 32 is installed in the lamp mounting hole 310.

[0057] In this embodiment, the bottom of the LED bead is the LED bead connecting part. The LED bead is connected to the power supply part through the LED bead connecting part, and the LED bead can light up when the power supply part supplies power to the LED bead. The LED bead mounting hole is a stepped hole, including an upper hole and a lower hole that are coaxially arranged and interconnected. The diameter of the upper hole is smaller than the diameter of the lower hole. The top of the upper hole is connected to the top of the LED bead mounting base, the bottom of the upper hole is connected to the top of the lower hole, and the bottom of the lower hole is connected to the bottom of the LED bead mounting base. The diameter of the LED bead connecting part is larger than the maximum diameter of the LED bead, and the outer diameter of the LED bead connecting part is larger than the diameter of the upper hole. Therefore, the LED bead is located in the upper hole and will not protrude from the top of the upper hole, thereby preventing damage to the LED bead. The LED bead connecting part is located in the lower hole. The stepped hole design of the LED bead mounting hole can limit the LED bead and prevent it from moving upward and detaching from the LED bead mounting base. At the same time, the mounting screw hole will restrict the LED bead from moving downward and detaching from the LED bead mounting base.

[0058] See Figure 1-3 As shown, a pen clip 12 is also installed on the outer surface of the handle 1. The pen clip 12 is provided with a sliding groove, and the outer end of the switch part 4 is slidably disposed in the sliding groove.

[0059] The pen clip allows the handle to be held in clothing or other locations, making it easy to carry the multi-functional otoscope. The outer end of the switch can be slid into the groove, making it easy for the operator to control the operation of the switch.

[0060] See Figure 3 , 8 As shown, the otoscope part 6 includes a lens housing 61, a conical head 62, an optical fiber 63, an optical fiber mount 64, a lens 65, and a lens cavity 66. The first end of the lens cavity 66 is installed inside the lens housing 61, and the second end of the lens cavity 66 is located outside the lens housing 61. The lens 65 and the conical head 62 are respectively located at both ends of the lens housing 61. The lens 65 is located inside the lens housing 61 on the first end side of the lens cavity 66 and is positioned directly opposite the lens cavity 66. The conical head 62 is sleeved outside the second end of the lens cavity 66, and the first end of the conical head 62 is connected to the lens housing 61. The optical fiber mount 64 is installed on the lens housing 61 below the lens cavity 66, and the optical fiber 63 is installed inside the optical fiber mount 64.

[0061] The screw hole 5 is located at the bottom of the optical fiber holder 64, and the optical fiber holder 64 is screwed to the external thread on the top of the lamp bead component 3 via the screw hole 5.

[0062] The first end and the second end are located at the two ends of the corresponding components. Figure 8Taking the direction as an example, the first end is on the left, the second end is on the right, and the lens cavity is a conical light-transmitting structure (it can be a hollow structure or a solid structure, preferably a hollow structure, with its right end blocked to prevent earwax from entering the lens cavity during ear canal examination, and its left end blocked by a lens for protection). The left end of the lens cavity is inside the lens housing, and the lens is installed inside the lens housing at the left end of the lens cavity. The right end of the lens cavity is outside the right end of the lens housing (the lens housing is a hollow structure with a chamber in the middle, the left and right ends of which are connected to the left and right sides of the lens housing, respectively, and the lens is located on the left side of the chamber). The right end protrudes from the cavity and is located on the outer right side of the lens housing. The cone-shaped head has two open ends and is a hollow structure. It is directly located outside the lens cavity on the outer right side of the lens housing, protecting the lens cavity. The lens cavity is a light-transmitting structure. The fiber optic mount has a fiber optic mounting hole in the center with the top and bottom connected. The fiber optic cable is installed in the fiber optic mounting hole and faces the LED component. When the LED component emits light, it transmits the light to the fiber optic cable, which then transmits the light to the lens cavity. In use, the operator holds the handle and inserts the right end of the cone-shaped head into the ear canal. The cone-shaped head has a cone shape that is smaller on the right and larger on the left. The operator observes the condition inside the ear canal through the lens to perform an ear canal examination.

[0063] In this invention, the otoscope portion is an existing structure, but it can also be other similar structures.

[0064] See Figure 8 As shown, a light-shielding ring 67 is also provided between the lens housing 61 and the conical head 62. The first end of the light-shielding ring 67 is connected to the lens housing 61, and the first end of the conical head 62 is connected to the second end of the light-shielding ring 67. The second end of the conical head 62 is located outside the second end of the lens cavity 66.

[0065] The light-shielding ring and the conical head are coaxially disposed outside the lens cavity outside the lens housing;

[0066] The end face of the second end of the conical head is flush with the end face of the second end of the lens cavity (this method is adopted in this embodiment), or the end face of the second end of the lens cavity is located inside the end face of the second end of the conical head.

[0067] The left end of the cone-shaped head is directly fitted onto the outer right surface of the light-shielding ring. The cone-shaped head and the light-shielding ring are detachable. Different cone-shaped heads can be selected according to different users' ear canals to suit different users' ear canals. The light-shielding ring can also be used to block light from the inner cavity of the lens, ensuring that the light transmitted by the optical fiber is transmitted to the inner cavity of the lens, thus achieving a stable light guiding effect.

[0068] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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. For instance, the two components can be mechanically connected by contact or abutting; they can also be directly hooked or connected by an intermediate medium; or they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A multifunctional otoscope, comprising a handle, wherein a power supply unit, a lamp bead component, and a switch unit are disposed on the handle, the lamp bead component is mounted on the top of the handle, the outer end of the switch unit is disposed on the outer wall of the handle, and the power supply unit is disposed inside the handle, characterized in that: The top outer surface of the lamp bead component is provided with an external thread, and a fitting auxiliary component is detachably installed on the handle. The bottom of the fitting auxiliary component is provided with a screw hole that mates with the external thread. The fitting auxiliary component is an otoscope or a pen lamp, and the bottom of the otoscope and the pen lamp are provided with screw holes that are screwed into the external thread. The pen light unit includes a push rod and a pen light cover. The bottom of the pen light cover is provided with a screw hole that is screwed into the external thread. The bottom of the push rod is located between the pen light cover and the lamp bead component. The top of the push rod passes through the pen light cover and is located above the top of the pen light cover.

2. The multifunctional otoscope according to claim 1, characterized in that: The power supply unit is in contact with or connected to the bottom of the lamp bead component. When the switch unit is in the first position, the power supply unit supplies power to the lamp bead component; when the switch unit is in the second position, the power supply unit stops supplying power to the lamp bead component.

3. The multifunctional otoscope according to claim 1, characterized in that: The top of the pen light cover is provided with a through hole communicating with the screw hole. The diameter of the through hole is smaller than the diameter of the screw hole. The bottom outer surface of the push rod is provided with an annular protrusion. The outer diameter of the annular protrusion is larger than the diameter of the through hole. The annular protrusion is located in the screw hole below the through hole. The top of the push rod passes through the through hole and is located above the top of the pen light cover.

4. The multifunctional otoscope according to claim 3, characterized in that: The bottom of the push rod abuts against the top surface of the lamp bead component, and the top surface of the annular protrusion abuts against the top surface of the screw hole; And / or, the through hole and the screw hole are coaxially arranged; And / or, the bottom surface of the annular protrusion is flush with the bottom surface of the push rod, and the bottom surface of the annular protrusion abuts against the top surface of the lamp bead component.

5. The multifunctional otoscope according to claim 1, characterized in that: The push rod located above the pen lamp cover has a tapered structure that is smaller at the top and larger at the bottom; And / or, the top of the push rod is an arc-shaped structure or a spherical structure.

6. The multifunctional otoscope according to claim 1, characterized in that: The push rod is a light-transmitting push rod; And / or, the outer surface of the push rod is provided with scale markings, which are arranged to extend along the axial direction of the push rod.

7. The multifunctional otoscope according to claim 1, characterized in that: The lamp bead component includes a lamp bead holder and a lamp bead. The top of the handle is provided with a mounting screw hole, and the bottom outer surface of the lamp bead holder is provided with a first external thread that is screwed into the mounting screw hole. The external thread is provided on the upper outer surface of the lamp bead holder. The lamp holder has a lamp mounting hole, and the two ends of the lamp mounting hole are respectively connected to the top surface and the bottom surface of the lamp holder. The lamp is installed in the lamp mounting hole.

8. The multifunctional otoscope according to claim 1, characterized in that: A pen clip is also installed on the outer surface of the handle, and the pen clip is provided with a sliding groove. The outer end of the switch part is slidably disposed in the sliding groove.

9. The multifunctional otoscope according to claim 1, characterized in that: The otoscope includes a lens housing, a tapered head, an optical fiber, an optical fiber mount, a lens, and a lens cavity. The first end of the lens cavity is installed inside the lens housing, and the second end of the lens cavity is located outside the lens housing. The lens and the tapered head are respectively located at both ends of the lens housing. The lens is located inside the lens housing on the side of the first end of the lens cavity and is positioned directly opposite the lens cavity. The tapered head is fitted onto the outside of the second end of the lens cavity, and the first end of the tapered head is connected to the lens housing. The optical fiber mount is installed on the lens housing below the lens cavity, and the optical fiber is installed inside the optical fiber mount. The screw hole is located at the bottom of the optical fiber holder, and the optical fiber holder is screwed to the external thread on the top of the lamp bead component via the screw hole.

10. The multifunctional otoscope according to claim 9, characterized in that: A light-shielding ring is also provided between the lens housing and the conical head. The first end of the light-shielding ring is connected to the lens housing, and the first end of the conical head is connected to the second end of the light-shielding ring. The second end of the conical head is located outside the second end of the inner cavity of the lens. And / or, the light-shielding ring and the conical head are coaxially disposed outside the lens cavity outside the lens housing; And / or, the end face of the second end of the conical head is flush with the end face of the second end of the lens cavity, or the end face of the second end of the lens cavity is located inside the end face of the second end of the conical head.

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