Toothbrush handle
By incorporating a light guide tube into the dental cleaning handle, the problem of insufficient light intensity caused by light diffusion from the handle is solved, ensuring that the light effectively illuminates areas such as dental plaque and periodontal pockets, thereby improving the activation and sterilization efficiency of the photosensitizer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN UNIV
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-26
Smart Images

Figure CN224403805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental flossing equipment technology, and in particular to a dental flossing handle. Background Technology
[0002] Currently, the end of the dental cleaning handle used to install the dental cleaning tip emits light. Since the light-emitting part contacts the teeth through the dental cleaning tip, the distance between the light-emitting part and the teeth (and gums) is greater than the length of the dental cleaning tip.
[0003] Therefore, there is a problem of light divergence when it shines. The diverged light energy is dispersed to non-target areas (such as cheeks and tongue), while the areas that really need cleaning or sterilization (such as dental plaque and periodontal pockets) receive insufficient light intensity, which reduces the activation efficiency of photosensitizers or the efficiency of sterilization or treatment effect. Utility Model Content
[0004] The main purpose of this invention is to provide a dental cleaning handle that aims to improve the problem of insufficient light intensity received by areas that need cleaning or sterilization (such as dental plaque and periodontal pockets).
[0005] To achieve the above objectives, the dental cleaning handle proposed in this utility model includes: a housing, a dental cleaning head, a light-emitting element, and a light guide tube. The housing has an installation cavity with an opening at one end; the dental cleaning head has a connecting end and a vibrating end, the connecting end being installed at the opening position, and the vibrating end being used to abut against the teeth; the light-emitting element is installed in the installation cavity and is located close to the opening, for emitting light; the light guide tube has an input end and an output end located along its length direction, the light guide tube has a through hole passing through the input end and the output end, the light guide tube is sleeved on the dental cleaning head, and the through hole allows the dental cleaning head to pass through, the input end being located adjacent to the light-emitting element, and the light guide tube is made of a light-guiding material to guide the light emitted by the light-emitting element from the input end and out from the output end.
[0006] In one embodiment, the end face of the light-emitting end of the light guide tube is curved or inclined.
[0007] In one embodiment, the end face of the light-emitting end is arranged in a direction gradually approaching the light-incident end in a direction away from the light guide tube.
[0008] In one embodiment, there is a gap between the light guide tube and the dental cleaning head, and the gap is filled with shock-absorbing material.
[0009] In one embodiment, the damping material includes damping foam.
[0010] In one embodiment, the light-emitting element is configured as a plurality of light-emitting elements, including a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is used to emit blue light and the second light-emitting element is used to emit red light;
[0011] The light guide tube is configured as one, and the light-incident end of the light guide tube is configured to correspond to the first light-emitting element and the second light-emitting element;
[0012] The dental cleaning handle also includes a switch device for selectively controlling the first light-emitting element and the second light-emitting element to turn on.
[0013] In one embodiment, the light-emitting element is configured as a plurality of light-emitting elements, including a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is used to emit blue light and the second light-emitting element is used to emit red light;
[0014] The light guide tubes are configured in multiple ways, with inner and outer sleeves connected together. The light-incident ends of the multiple light guide tubes are respectively positioned opposite to the first light-emitting element and the second light-emitting element.
[0015] In one embodiment, the light guide tube has a light-blocking layer on its inner and outer sides.
[0016] In one embodiment, the dental cleaning handle further includes a diffuser plate disposed at the light-emitting end of the light guide tube.
[0017] The technical solution of this utility model is to set up a light guide tube to guide the light to the light output end. On the one hand, it reduces the light intensity loss in the propagation path from the light input end to the light output end. On the other hand, it makes the light output position close to the target area. The light output end is close to the target area, and the light can cover and illuminate the target area, thus ensuring the light intensity of the target area. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of an embodiment of the dental cleaning handle provided by this utility model;
[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0021] Figure 3 A partial enlarged view at point A of another embodiment of the dental cleaning handle provided by this utility model.
[0022] Explanation of icon numbers:
[0023] 100. Dental cleaning handle; 1. Housing; 11. Opening; 2. Dental cleaning head; 21. Connecting end; 22. Vibrating end; 3. Light-emitting element; 31. First light-emitting element; 32. Second light-emitting element; 4. Light guide tube; 41. Light input end; 42. Light output end; 43. Through hole; 44. Light blocking layer; 5. Shock-absorbing material; 6. Diffuser plate.
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0028] Therefore, there is a problem of light divergence when it shines. The diverged light energy is dispersed to non-target areas (such as the cheeks and tongue), while the areas that really need cleaning or sterilization (such as dental plaque and periodontal pockets) receive insufficient light intensity, reducing the activation efficiency of photosensitizers or the sterilization efficiency, or the treatment effect. This utility model proposes a dental cleaning handle.
[0029] Please see Figure 1In one embodiment of this utility model, the dental cleaning handle 100 includes: a housing 1, a dental cleaning head 2, a light-emitting element 3, and a light guide tube 4. The housing 1 has an installation cavity with an opening 11 at one end; the dental cleaning head 2 has a connecting end 21 and a vibrating end 22, the connecting end 21 being installed at the opening 11 and the vibrating end 22 being used to abut against the teeth; the light-emitting element 3 is installed in the installation cavity and is located close to the opening 11, and is used to emit light; the light guide tube 4 has an incident light end 41 and an exit light end 42 located in its length direction, the light guide tube 4 has a through hole 43 passing through the incident light end 41 and the exit light end 42, the light guide tube 4 is sleeved on the dental cleaning head 2, and the through hole 43 allows the dental cleaning head 2 to pass through, the incident light end 41 is located adjacent to the light-emitting element 3, and the light guide tube 4 is made of a light-guiding material, used to guide the light emitted by the light-emitting element 3 from the incident light end 41 and out from the exit light end 42.
[0030] In this invention, the housing 1 serves as the mounting body, and has a mounting cavity with an opening 11 at one end. The light-emitting element 3 is installed inside the mounting cavity and faces the opening 11. The connecting end 21 of the cleaning head 2 is installed at the opening 11, and the vibrating end 22 is used to contact the teeth. Light shines from the opening 11 towards the vibrating end 22. Because the light diffuses, the light intensity received in the target area is insufficient. To ensure sufficient light intensity in the target area corresponding to the vibrating end 22, a light guide tube 4 is provided between the connecting end 21 and the vibrating end 22. The light guide tube 4 is made of a light-guiding material and guides the light to the light-emitting end 42, which is closer to the target area near the vibrating end 22 than the opening 11. On the one hand, the light guide tube 4 allows light to propagate within itself, preventing light divergence and reducing light intensity loss along the propagation path from the light input end 41 to the light output end 42. On the other hand, it positions the light output close to the target area. Even if the light emitted from the light output end 42 diverges, because the light output end 42 is close to the target area, most of the light will still illuminate the target area, ensuring sufficient light intensity. Therefore, by setting up the light guide tube 4, the illumination intensity within the target area can be increased.
[0031] For the light emitter, different emitters can be set according to different needs. When the light emitter emits white light for illumination, the light dispersion will result in insufficient brightness in the target area, making it difficult to carefully observe the details inside the oral cavity. In addition, setting a high-power light emitter to ensure brightness in the target area will lead to another problem: the light starts to disperse at the opening 11 position, so the light will also disperse to the eye position during use, causing glare. By setting the light guide tube 4, on the one hand, the brightness in the target area can be improved, and on the other hand, the light will only disperse at the light output end 42 position. When using the cleaning handle 100, the light output end 42 position is close to the inside of the oral cavity, and the light is unlikely to disperse to the eye, avoiding damage to the eye. When the light emitter emits ultraviolet light, the light intensity is too low to clearly mark the location of dental plaque (such as fluorescence imaging technology which relies on concentrated light to ensure light intensity), and the doctor may miss cleaning hidden areas, requiring rework. Therefore, setting the light guide tube 4 can improve the imaging effect of dental plaque. When the light emitter emits blue or red light, the periodontal area is disinfected and repaired. When the light dispersion causes insufficient intensity, the disinfection and repair effect is poor. Therefore, by setting up the light guide tube 4, the various problems caused by light divergence mentioned above can be improved.
[0032] Since a typical dental cleaning tip 2 is curved, it has a curved section and a straight section. The connecting end 21 is located in the straight section, and the vibrating end 22 is located in the curved section. In the embodiment provided by this utility model, the light guide tube 4 is installed in the straight section for ease of installation. To ensure that the light can irradiate the target area near the vibrating end 22, the end face of the light-emitting end 42 of the light guide tube 4 is curved or inclined. This causes the light to be refracted at the emitting end face and irradiate the target area near the vibrating end 22.
[0033] To refract light outwards and illuminate the target area near the vibrating end 22, the end face of the light-emitting end 42 is arranged to gradually approach the light-incident end 41 in both the radial direction and the direction away from the light guide tube 4. Since the cleaning head 2 is detachable, the angle at which it is screwed onto the housing 1 is not always fixed. Regardless of the angle at which the cleaning head 2 is mounted on the housing 1, sufficient light intensity is required to illuminate the target area near the vibrating end 22. Therefore, the light-emitting element 3 is arranged in a ring shape to ensure that a portion of the light-emitting element 3 always corresponds to the vibrating end 22, and the surface shape of the corresponding light-emitting end is similar to the periphery of the platform, thus ensuring that the light can reach the target area near the vibrating end 22.
[0034] Another point worth mentioning is that in the existing technology, because the cleaning head 2 is curved, the vibrating end 22 does not correspond to the center of the opening 11, while the position with the strongest light intensity corresponds to the center of the opening 11. This means that the target area near the vibrating end 22 is illuminated by diffused light, further leading to insufficient light intensity. In the corresponding embodiment of this invention, by setting the end face of the light-emitting end 42 to be curved or inclined, the light is refracted, directing the light towards the target area and ensuring sufficient light intensity. Furthermore, the curved or inclined end face of the light-emitting end 42 increases the luminous surface, enabling complete illumination of all positions within the target area.
[0035] Since the cleaning tip 2 is vibrating and used to clean tartar, while the light guide is fixed for guiding light, a gap is provided between the light guide tube 4 and the cleaning tip 2 to prevent the vibration of the cleaning tip 2 from affecting the light guide. Furthermore, a shock-absorbing material 5 is filled in this gap to reduce the impact of the vibration of the cleaning tip 2 on the light guide. The shock-absorbing material 5 can be shock-absorbing foam or other soft materials that can absorb vibration.
[0036] Because the patient also has other inflammations inside their mouth, such as periodontal pockets, which are a manifestation of periodontitis, when the gums are inflamed, a "pocket-like" structure forms around the teeth, which may accumulate pus, leading to pain and bad breath. To address these oral problems, multiple light-emitting elements 3 are provided, including a first light-emitting element 31 and a second light-emitting element 32. The first light-emitting element 31 emits blue light, and the second light-emitting element 32 emits red light; the blue light is used for disinfection, and the red light is used for gum repair. Please refer to [link / reference]. Figure 2 The light guide tube 4 is configured as one unit, with its light-incident end 41 corresponding to the first light-emitting element 31 and the second light-emitting element 32. The light-incident end 41 of one light guide tube 4 is respectively associated with two light-emitting elements 3, and the light emitted by the first light-emitting element 31 and the second light-emitting element 32 is guided through the light guide tube 4 to the target area near the vibrating end 22. The dental cleaning handle 100 also includes a switch device for selectively controlling the activation of the first light-emitting element 31 and the second light-emitting element 32. This method allows for manual adjustment of the emitted light, and alternative light emission can also be achieved through a control device.
[0037] In another embodiment, please refer to Figure 3The light-emitting element 3 is configured in multiple ways, including a first light-emitting element 31 and a second light-emitting element 32. The first light-emitting element 31 emits blue light, and the second light-emitting element 32 emits red light. Multiple light guide tubes 4 are configured, with inner and outer sleeves connected together. The light-incident ends 41 of the multiple light guide tubes 4 are respectively positioned opposite to the first light-emitting element 31 and the second light-emitting element 32. Different light-emitting elements 3 correspond to different light guide tubes 4, allowing different light rays to propagate within different light guide tubes 4. The light guide tubes 4 can be made of different materials according to the wavelength of the light emitted by different light-emitting elements 3, in order to reduce light intensity loss during propagation within the light guide tubes 4.
[0038] Since optical fiber experiences low light loss during signal propagation, the material of the light guide tube 4 can be the same as the material of the fiber core. Therefore, the material of the light guide tube 4 includes glass and plastic. The glass is composed of multiple components such as silicon dioxide, sodium oxide, and calcium oxide. Glass is the preferred material.
[0039] To prevent light from escaping from the periphery of the light guide tube 4, a light-blocking layer 44 is provided on the inner and outer surfaces of the light guide tube 4. This ensures that light is transmitted inside the light guide tube 4 and prevents light intensity loss due to light divergence. To ensure uniform light emission at the light-emitting end 42 of the light guide tube 4, in one embodiment, the dental cleaning handle 100 further includes a diffuser plate 6, which is disposed at the light-emitting end 42 of the light guide tube 4. Alternatively, in another embodiment, the dental cleaning handle 100 further includes a light guide film, which is disposed at the light-emitting end 42 of the light guide tube 4.
[0040] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A dental cleaning handle, characterized in that, include: The housing has a mounting cavity with an opening at one end; A dental cleaning tip has a connecting end and a vibrating end, wherein the connecting end is installed at the opening position and the vibrating end is used to abut against the teeth; A light-emitting element is installed inside the mounting cavity and positioned near the opening to emit light; A light guide tube has an input end and an output end located along its length. The light guide tube has a through hole that passes through the input end and the output end. The light guide tube is sleeved on the dental cleaning head, and the through hole allows the dental cleaning head to pass through. The input end is located adjacent to the light-emitting element. The light guide tube is made of a light-guiding material to guide the light emitted by the light-emitting element from the input end and out from the output end.
2. The dental cleaning handle as described in claim 1, characterized in that, The light-emitting end of the light guide tube has a curved or inclined surface.
3. The dental cleaning handle as described in claim 2, characterized in that, In a direction away from the light guide tube, the end face of the light emitting end is arranged to gradually approach the light input end.
4. The dental cleaning handle as described in claim 1, characterized in that, There is a gap between the light guide tube and the dental cleaning head, and the gap is filled with shock-absorbing material.
5. The dental cleaning handle as described in claim 1, characterized in that, The light-emitting element is configured as a plurality of light-emitting elements, including a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is used to emit blue light and the second light-emitting element is used to emit red light; The light guide tube is configured as one, and the light-incident end of the light guide tube is configured to correspond to the first light-emitting element and the second light-emitting element; The dental cleaning handle also includes a switch device for selectively controlling the first light-emitting element and the second light-emitting element to turn on.
6. The dental cleaning handle as described in claim 1, characterized in that, The light-emitting element is configured as a plurality of light-emitting elements, including a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is used to emit blue light and the second light-emitting element is used to emit red light; The light guide tubes are configured in multiple ways, with inner and outer sleeves connected together. The light-incident ends of the multiple light guide tubes are respectively positioned opposite to the first light-emitting element and the second light-emitting element.
7. The dental cleaning handle as described in claim 1, characterized in that, The light guide tube has a light-blocking layer on its inner and outer sides.
8. The dental cleaning handle as described in claim 1, characterized in that, The dental cleaning handle also includes a diffuser plate, which is disposed at the light-emitting end of the light guide tube.