Odontoscope for oral examination

Abstract

The utility model discloses an odontoscope for oral examination, which relates to the technical field of medical equipment and comprises an odontoscope for detecting deep teeth in the oral cavity, a double-sided mirror and an illumination optical fiber which extends along the circumferential direction of the double-sided mirror are embedded in the front end of the odontoscope, and two end parts of the illumination optical fiber extend along the inner side wall of the odontoscope to abut against an LED light source. The outer wall of the illumination optical fiber is coated with a shading coating, the longitudinal length of the shading coating is smaller than that of the second illumination optical fiber, then the front end of the illumination optical fiber forms a light-emitting section, and the light-emitting section of the illumination optical fiber forms local illumination light at the front end of the odontoscope. According to the odontoscope for oral examination, light rays are utilized to generate total reflection on the interface of the fiber core and the cladding of the illumination optical fiber, meanwhile, the illumination optical fiber is locally shaded by utilizing the shading coating, and the light rays cannot penetrate through the shading coating due to total reflection, so that the light rays are locked in the fiber core and are forwards transmitted to the position of a light-emitting section; and local illumination light is formed on the side surface of the front end of the odontoscope and is used for supplementing light for tooth examination.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a mouth mirror used for oral examination. Background Art

[0002] A dental mirror, also known as an intraoral mirror, is a very practical tool for oral examination. It mainly observes the structure and pathological conditions inside the oral cavity through optical magnification and reflection. A dental mirror usually consists of a handle and a single-sided lens at the head end. The lens at the head end can magnify the image inside the oral cavity, and the light on the handle can illuminate it, allowing the doctor to observe the situation inside the oral cavity more clearly.

[0003] When using existing oral mirrors for clinical examinations, the front part of the oral mirror is often placed at the deepest and worst light position in the oral cavity for examination. For example, the buccal side of the patient's posterior teeth, especially the second and third molars, is very dark due to the obstruction of the corners of the mouth, which is not conducive to observation. The corners of the mouth need to be pulled during operation, which makes it difficult to refract light. When examining patients with severe periodontitis or the elderly who have gum recession, if the root surface is exposed more, the position of the exposed root is blocked by the lips, and the light is poor. For example, when inspecting or operating on the lingual side of the mandibular teeth, the tongue needs to be pushed away with a oral mirror to avoid its influence. If a mirror less than 180° is used for observation at this time, the tongue needs to be pushed closer to the throat for observation. This operation will cause the patient's throat reflex and increase the patient's nausea. Therefore, it is not convenient to use existing oral mirrors to clearly observe the oral cavity of patients in the above situation, resulting in the doctor's inability to quickly determine the specific condition in the oral cavity and delay treatment. Utility Model Content

[0004] The purpose of the utility model is to provide a mouth mirror for oral examination to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a mouth mirror for oral examination, comprising a mouth mirror for detecting teeth deep in the oral cavity, an extension part detachably connected to the rear end of the mouth mirror, and a battery compartment for power supply, a double-sided mirror and a lighting optical fiber extending circumferentially around the double-sided mirror are embedded in the front end of the mouth mirror, a plug-in part extending from the end of the extension part is plugged into the rear end of the mouth mirror, and an LED light source for providing light to the lighting optical fiber is installed at the end of the plug-in part, two ends of the lighting optical fiber extend along the inner wall of the mouth mirror close to the LED light source, the outer wall of the lighting optical fiber is coated with a light-shielding coating, the light-shielding coating extends from one end of the lighting optical fiber close to the LED light source to a side away from the LED light source, the longitudinal length of the light-shielding coating is less than the second length of the lighting optical fiber, so that the front end of the lighting optical fiber forms a light-emitting segment, and the light-emitting segment of the lighting optical fiber forms a local lighting light at the front end of the mouth mirror.

[0006] In a further embodiment, the front end side wall of the extended portion is provided with an elastic sheet located on the side of the plug-in portion, and the outer side wall of the end of the elastic sheet is provided with a spherical block, and the inner side wall of the tail end of the mouth mirror on both sides of the plug-in portion is provided with a plurality of protruding blocks, and the side walls of the protruding blocks are bent and extended from the bottom to the top, and the thickness of the upper middle position of the side walls of the protruding blocks is greater than the thickness of the upper and lower ends of the protruding blocks, and the upper position of the side walls of the protruding blocks forms a supporting surface for supporting the side walls of the spherical blocks, and the extended portion and the tail of the mouth mirror are assembled in sections.

[0007] In a further embodiment, an elastic plug connector with an annular hollow structure is provided at the front end of the battery compartment, and arc-shaped expansion portions are protruding outward from the side walls on both sides of the elastic plug connector, and a plug groove for connecting with the elastic plug connector is provided at the tail end of the extended portion. The extended portion and the battery compartment are assembled in sections, and the extended portion is disinfected separately after disassembly.

[0008] In a further embodiment, the inner wall of the plug slot and the outer wall of the elastic plug connector are both fixed with conductive sheets capable of conducting electricity, and the battery compartment has a replaceable battery built in;

[0009] The battery compartment tail portion is threadedly connected with a compartment cover.

[0010] In a further embodiment, the portion of the mouth mirror extending toward the rear is a mouth mirror neck, and the mouth mirror neck is bent in a direction deviating from the axial direction of the double-sided mirror.

[0011] In a further embodiment, the double-sided mirror is located on the side where the angle between the mirror and the neck of the mirror is less than 180°, and is used to observe the lingual surface of the teeth and the occlusal surface of the teeth.

[0012] In a further embodiment, the double-sided mirror is located on the side where the angle between the mirror and the neck of the mirror is greater than 180° and is used to observe the buccal surface of the teeth and the lingual surface of the mandibular molars.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses a mouth mirror for oral examination, which uses an LED light source to provide light. The light is totally reflected at the interface between the core and cladding of the illumination fiber. At the same time, a light-shielding coating is used to partially shield the illumination fiber. Only the portion of the illumination fiber at the front end of the mouth mirror is exposed to form a light-emitting segment. The light is totally reflected and will not pass through the light-shielding coating, thereby locking the light inside the fiber core and transmitting it forward to the position of the light-emitting segment, thereby forming a local illumination light at the side position of the front end of the mouth mirror. The mouth mirror is suitable for supplementary lighting for inspection of the occlusal surface, buccal surface and lingual surface of teeth deep in the oral cavity, and meets the light brightness requirements for oral examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 For the utility model embodiment Figure 1 A magnified view of the structure at center;

[0017] Figure 3 This is a schematic diagram of the partial structure of the mouth mirror of an embodiment of the utility model;

[0018] Figure 4 A partial cross-sectional view of an illumination optical fiber and a light-shielding coating according to an embodiment of the utility model;

[0019] Figure 5 Schematic diagram of the internal structure of the mouth mirror according to the embodiment of the utility model

[0020] Figure 6 This is a schematic diagram of the internal structure of the extension part of an embodiment of the utility model;

[0021] Figure 7 The figure is a schematic diagram of the internal structure of the battery compartment according to an embodiment of the present utility model.

[0022] In the figure: 1. mouth mirror; 2. double-sided mirror; 3. lighting optical fiber; 4. light-shielding coating; 5. raised block; 6. extension part; 61. plug-in slot; 62. LED light source; 7. battery compartment; 71. elastic plug connector; 8. battery; 9. compartment cover; 10. elastic sheet; 101. spherical block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment: This embodiment provides a mouth mirror 1 for oral examination, including a mouth mirror 1 for detecting teeth deep in the oral cavity, an extension portion 6 detachably connected to the rear end of the mouth mirror 1, and a battery compartment 7 for power supply. A double-sided mirror 2 and an illumination optical fiber 3 extending circumferentially around the double-sided mirror 2 are embedded in the front end of the mouth mirror 1. The illumination optical fiber 3 is composed of a core layer and a cladding layer, which can make the optical fiber present a soft characteristic. The illumination optical fiber 3 is soft, simple to connect, and easy to bend and construct. It is highly flexible, easy to cut, not easy to deform, has good end-face luminescence and whole-body luminescence effects, uniform light guidance, and high brightness. Therefore, it is convenient to bend the illumination optical fiber 3 and extend it circumferentially along the double-sided mirror 2, and the two ends of the illumination optical fiber 3 are extended along the rear direction of the mouth mirror 3, and a fixing card for fixing the two ends of the illumination optical fiber 3 is provided on the inner side wall of the rear of the mouth mirror 1, such as Figure 1 and Figure 2As shown, this prevents the two ends of the illumination optical fiber 3 from shaking.

[0025] The end of the extension part 6 extends to a plug-in part that is plugged into the rear end of the mouth mirror 1, and an LED light source 62 for providing light for the lighting optical fiber 3 is installed at the end of the plug-in part. A replaceable battery 8 is built into the battery compartment 7, and the battery 8 provides power for the LED light source 62. The two ends of the lighting optical fiber 3 extend along the inner wall of the mouth mirror 1 and are close to the LED light source 62; the LED light source 62 provides light for the comprehensive reflection of the lighting optical fiber 3, and the overall shell is made of PMMA light-transmitting material to facilitate light to pass through for lighting.

[0026] The outer wall of the illumination optical fiber 3 is coated with a light shielding coating 4, which extends from the end of the illumination optical fiber 3 close to the LED light source 62 to the side away from the LED light source 62. The longitudinal length of the light shielding coating 4 is less than the length of the illumination optical fiber 3, so that the front end of the illumination optical fiber 3 forms a light-emitting section, and the light-emitting section of the illumination optical fiber 3 forms a local illumination light at the front end of the mouth mirror 1. Figure 1 As shown, the light shielding coating 4 is coated on the outer side wall of the illumination optical fiber 3, covering the two-thirds portion of the illumination optical fiber 3 surrounding the double-sided mirror and the portion of the illumination optical fiber 3 extending along the tail of the mouth mirror 1. This is to prevent the light of the illumination optical fiber 3 from leaking out through the light shielding coating 4 when it is totally reflected at the interface between the fiber core and the cladding, thereby continuing to conduct the light forward, which is conducive to enhancing the illumination brightness of the light-emitting section.

[0027] The specific method of supplementing light is: using LED light source 62 to provide light, and coating the light-shielding coating 4 on the outer wall of the illumination optical fiber 3, so that the light can be totally reflected at the interface between the core and the cladding of the illumination optical fiber. Figure 4 At the same time, the light shielding coating 4 is used to partially shield the illumination optical fiber 3, and only the portion of the illumination optical fiber 3 at the front end of the mouth mirror 1 is exposed to form a light-emitting segment, as shown in FIG. Figure 1 The portion not covered by the light-shielding coating 4 is the light-emitting segment. The light is totally reflected and will not pass through the light-shielding coating 4 coated on the outer wall of the lighting optical fiber 3. Because the refractive index of the lighting optical fiber 3 is greater than that of the light-shielding coating 4, the light cannot penetrate the surface when wrapped by the light-shielding coating 4. It will be totally reflected in the core of the lighting optical fiber 3, and thus more light is transported forward, thereby locking the light inside the core and transmitting it forward to the position of the light-emitting segment. Figure 4 As shown in the figure, the outermost single arrow is the final direction of light transmission, that is, the light finally reaches the light-emitting section. Since the overall shell is made of PMMA light-transmitting material, it has good light transmittance, and finally forms a local illumination light on the side of the front end of the mouth mirror. It is suitable for filling light on the occlusal surface, buccal surface, lingual surface of teeth deep in the mouth, and the lingual surface of the posterior teeth of the jaw, meeting the light brightness requirements for oral examination.

[0028] Because the size of the mouth mirror 1 itself is relatively small, it can be easily inserted into the oral cavity for inspection, does not occupy too much space, and is convenient for doctors to check the teeth. Therefore, the light source cannot be too large or too heavy, which means that the power of the light source will not be too high, so this reflection method is used to enhance the brightness and provide better lighting.

[0029] like Figure 2 and Figure 5 As shown, the front end side wall of the extension part 6 is provided with an elastic sheet 10 located on the side of the plug-in part, and the outer side wall of the end of the elastic sheet 10 is provided with a spherical block 101, and the inner side wall of the tail end of the mouth mirror 1 on both sides of the plug-in part is provided with a plurality of protruding blocks 5, and the side walls of the protruding blocks 5 are bent and extended from the bottom to the top, and the thickness of the middle upper position of the side wall of the protruding block 5 is greater than the thickness of the upper and lower ends of the protruding block 5, and the upper position of the side wall of the protruding block 5 forms a lifting surface for lifting the side wall of the spherical block 101. The specific assembly process is: the plug-in part of the extension part 6 is aligned with the tail opening of the mouth mirror 1 and inserted, and the spherical block 101 at the end of the elastic sheet 10 slides along the side wall of the protruding block 5, and at the same time, the elastic sheet 10 is bent and deformed toward the side close to the plug-in part, so as to slide the spherical block 101 over the side wall that is more protruding in the middle of the protruding block 5, and at the same time, the elastic sheet 10 is reset, and finally the spherical block 101 slides to the lifting surface, so that the segmented assembly between the extension part 6 and the tail of the mouth mirror 1 is realized. At the same time, the plug-in part can be pulled out from the tail opening of the mouth mirror 1, and the disposable mouth mirror 1 can be discarded after disassembly.

[0030] Furthermore, an elastic plug connector 71 with an annular hollow structure is provided at the front end of the battery compartment 7, and arc-shaped expansion parts are provided on both sides of the side walls of the elastic plug connector 71 protruding outward, and a plug slot 61 plugged with the elastic plug connector 71 is provided at the rear end of the extension part 6. The specific assembly process is: align the elastic plug connector 71 of the battery compartment 7 with the plug slot 61 and insert it. During the insertion process, the arc-shaped expansion part compresses and deforms the elastic plug connector 71 toward the inner wall of the elastic plug connector 71, so as to facilitate the insertion of the elastic plug connector 71 into the plug slot 61, so as to realize the segmented assembly between the extension part 6 and the battery compartment 7. At the same time, the elastic plug connector 71 can be pulled out from the plug slot 61 by force, and the extension part 6 can be disinfected separately after disassembly.

[0031] The extension part 6 is sterilized at high temperature, and the battery compartment 7 is sterilized with alcohol, and can be used multiple times. The overall structure forms a three-section detachable structure, which has the advantages of environmental protection, easy operation, intraoral lighting, avoiding cross infection and reducing discomfort.

[0032] Conductive sheets capable of conducting electricity are fixed to the inner wall of the plug slot 61 and the outer wall of the elastic plug connector 71 , and the battery 8 and the LED light source 62 are connected by wires to achieve connectivity of the power supply circuit.

[0033] The rear end of the battery compartment 7 is threadedly connected with a compartment cover 9, and the compartment cover 9 can be removed by rotating to replace the battery 8.

[0034] like Figure 3 As shown, the portion of the mouth mirror 1 extending toward the rear is the neck of the mouth mirror 1, and the neck of the mouth mirror 1 is bent away from the axial direction of the double-sided mirror 2. In this way, it is convenient to deviate the neck of the mouth mirror from the doctor's line of sight, so that the doctor can intuitively see the position of the double-sided mirror 2 on the mouth mirror 1, and the double-sided mirror 2 reflects the teeth in the mouth, so that the doctor can see clearly.

[0035] According to the needs of inspecting the teeth, the double-sided mirror 2 can be located on the side where the angle between the mouth mirror 1 and the neck of the mouth mirror 1 is less than 180°, with the mirror facing the lingual surface of the teeth and the occlusal surface of the teeth, so as to facilitate observation of the lingual surface of the teeth and the occlusal surface of the teeth.

[0036] In addition, the double-sided mirror 2 can be located on the side where the angle between the mouth mirror 1 and the neck of the mouth mirror 1 is greater than 180°, with the mirror surface facing the buccal surface of the teeth and the lingual surface of the mandibular molars, for observing the buccal surface of the teeth and the lingual surface of the mandibular molars.

[0037] In summary, the mouth mirror 1 is suitable for checking and lighting the occlusal, buccal and lingual surfaces of teeth deep in the oral cavity, and the double-sided mirror 2 can reduce the pressure on the tongue and meet the light brightness requirements for oral examination.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mouth mirror (1) for oral examination, comprising a mouth mirror (1) for detecting teeth deep in the oral cavity, an extension portion (6) detachably connected to the rear end of the mouth mirror (1), and a battery compartment (7) for power supply, characterized in that: The front end of the mouth mirror (1) is embedded with a double-sided mirror (2) and an illumination optical fiber (3) extending circumferentially around the double-sided mirror (2); the end of the extension portion (6) extends to a plug-in portion plugged into the rear end of the mouth mirror (1); and the end of the plug-in portion is installed with an LED light source (62) for providing light to the illumination optical fiber (3); and the two ends of the illumination optical fiber (3) extend along the inner wall of the mouth mirror (1) and are close to the LED light source (62); The outer wall of the lighting optical fiber (3) is coated with a light-shielding coating (4), and the light-shielding coating (4) is extended from one end of the lighting optical fiber (3) close to the LED light source (62) to a side away from the LED light source (62). The longitudinal length of the light-shielding coating (4) is less than the length of the lighting optical fiber (3), thereby forming a light-emitting section at the front end of the lighting optical fiber (3). The light-emitting section of the lighting optical fiber (3) forms a localized lighting light at the front end of the mouth mirror (1).

2. The mouth mirror (1) for oral examination according to claim 1, characterized in that: The front end side wall of the extension part (6) is provided with an elastic sheet (10) located at the side of the plug-in part, and the outer side wall of the end of the elastic sheet (10) is provided with a spherical block (101). The inner side walls of the tail end of the mouth mirror (1) on both sides of the plug-in part are provided with a plurality of protruding blocks (5). The side walls of the protruding blocks (5) are bent and extended from the bottom to the top. The thickness of the middle upper part of the side wall of the protruding block (5) is greater than the thickness of the upper and lower ends of the protruding block (5). The upper part of the side wall of the protruding block (5) forms a lifting surface for lifting the side wall of the spherical block (101). The extension part (6) and the tail of the mouth mirror (1) are assembled in sections.

3. The mouth mirror (1) for oral examination according to claim 1, characterized in that: The front end of the battery compartment (7) is provided with an elastic plug connector (71) of an annular hollow structure, and the side walls on both sides of the elastic plug connector (71) are provided with arc-shaped expansion parts protruding outwards, and the rear end of the extension part (6) is provided with a plug groove (61) plugged with the elastic plug connector (71), and the extension part (6) and the battery compartment (7) are assembled in sections.

4. The mouth mirror (1) for oral examination according to claim 3, characterized in that: Conductive sheets capable of conducting electricity are fixed to the inner wall of the plug slot (61) and the outer wall of the elastic plug connector (71); a replaceable battery (8) is built into the battery compartment (7); and a compartment cover (9) is threadedly connected to the rear end of the battery compartment (7).

5. The mouth mirror (1) for oral examination according to claim 1, characterized in that: The portion of the mouth mirror (1) extending toward the rear is the neck of the mouth mirror (1), and the neck of the mouth mirror (1) is bent in a direction deviating from the axial direction of the double-sided mirror (2).

6. The mouth mirror (1) for oral examination according to claim 5, characterized in that: The double-sided mirror (2) is located on the side of the mouth mirror (1) where the included angle between the mouth mirror (1) and the neck of the mouth mirror (1) is less than 180°, and is used to observe the lingual surface of the teeth and the occlusal surface of the teeth.

7. The mouth mirror (1) for oral examination according to claim 5, characterized in that: The double-sided mirror (2) is located on the side of the mouth mirror (1) where the included angle between the mouth mirror (1) and the neck of the mouth mirror (1) is greater than 180°, and is used to observe the buccal surface of the teeth and the lingual surface of the mandibular molars.

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