Oral cavity scanner

Abstract

The utility model provides an oral cavity scanner which comprises a shell, the shell comprises a first end face and a second end face which are attached to the gum, and the vertical distance between the first end face and the second end face is gradually reduced in the direction from the middle of the shell to the two ends of the shell; occlusion grooves are respectively formed in the first end face and the second end face, and at least part of the upper dental arch and / or the lower dental arch extends into the occlusion grooves; a mounting cavity is formed in the shell, and the part, defining the meshing groove, of the shell is made of a light-transmitting material; the image acquisition module is arranged in the mounting cavity and is used for acquiring picture information in the oral cavity. According to the oral cavity scanner, the shell is designed into the shape with the high front part and the low rear part, the occlusion groove is designed in a personalized manner, the light-transmitting material is applied, and the image acquisition module and other components are reasonably arranged, so that the problem that the oral cavity scanner in the prior art is not matched with the internal shape of the oral cavity is effectively solved, and the practicability of the scanner and the use experience of a patient are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to an oral scanner. Background Technology

[0002] Currently, dental scanners have become indispensable tools in the field of dentistry. They provide high-precision 3D models, which are of great significance for orthodontic treatment, implant placement, and prosthesis design. These instruments typically use an insertion-type optical scanning head, which captures details of teeth, gums, and oral soft tissues through small-scale movements within the oral cavity. Most mainstream dental scanning devices on the market are based on structured light or laser triangulation technology for 3D reconstruction. These technologies require the scanning head to capture images from multiple angles to ensure data integrity and accuracy.

[0003] However, existing dental scanner designs often overlook the complexity and diversity of the oral cavity's internal anatomy, leading to a widespread mismatch between the scanning head and the shape of the oral cavity. Due to the limitations of oral space, traditional scanning heads often struggle to comprehensively cover all teeth and tissues without causing patient discomfort. This is particularly true when scanning the posterior maxilla and mandible, such as the third molar region, where the size and shape of the scanning head become a significant challenge. Existing designs often require patients to open their mouths multiple times, or even change their head posture, to complete a scan of the entire dental arch. This process is both time-consuming and uncomfortable, reducing patient experience and scanning convenience.

[0004] Therefore, the further development of oral scanning technology urgently needs to solve the problem of adapting the scanning head design to the shape of the oral cavity, in order to improve the efficiency, accuracy and patient comfort of scanning, and achieve more accurate, fast and painless oral data acquisition, so as to provide strong support for dental diagnosis and treatment. Utility Model Content

[0005] The main objective of this invention is to provide an oral scanner to solve the technical problem of patient discomfort caused by the mismatch between the oral scanner and the shape of the oral cavity in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, an oral scanner is provided, comprising a housing, the housing including a first end face and a second end face that conform to the gums, the vertical distance between the first end face and the second end face gradually decreasing from the middle of the housing to both ends of the housing; occlusal grooves are respectively provided on the first end face and the second end face, at least a portion of the upper dental arch and / or the lower dental arch extending into the occlusal grooves; an installation cavity is provided inside the housing, the portion of the housing surrounding the occlusal grooves is made of a light-transmitting material; and an image acquisition module is disposed in the installation cavity to acquire image information of the oral cavity.

[0007] In one embodiment of this application, the oral scanner further includes a light source module disposed within the mounting cavity and located between two occlusal grooves, and a reflective coating is provided on a portion of the inner wall surface of the mounting cavity.

[0008] In one embodiment of this application, the reflective coating includes a first reflective coating and a second reflective coating; the housing also includes a first body and a second body, which are disposed opposite to each other along the outer to inner direction of the housing, and at least a portion of the mounting cavity is located between the first body and the second body; the first reflective coating is disposed on the side wall surface of the first body opposite to the mounting cavity; the second reflective coating is disposed on the side wall surface of the second body opposite to the mounting cavity; the first body and the second body extend along a predetermined arcuate trajectory.

[0009] In one embodiment of this application, the engagement groove extends along a predetermined curved trajectory, and the functional equation of the predetermined curved trajectory is: .

[0010] In one embodiment of this application, the oral scanner further includes an occlusal block detachably disposed at the end of the housing. The occlusal block is elastically disposed such that the gums occlude with the occlusal block. The height of the occlusal block is greater than the vertical distance between the first end face and the second end face, so that at least a portion of the upper dental arch and / or the lower dental arch extends into the occlusal groove.

[0011] In one embodiment of this application, a first connecting part is provided on the biting block, and a second connecting part is provided at the end of the housing, and the first connecting part and the second connecting part are detachably connected.

[0012] In one embodiment of this application, connecting posts are provided at both ends of the housing, and mating holes are provided on the interlocking block. At least a portion of the connecting posts is inserted into the mating holes so that the interlocking block is connected to the housing.

[0013] In one embodiment of this application, the housing further includes a first body and a second body, which are disposed opposite to each other along the outer side to the inner side of the housing, and the first body is provided with an opening; the oral scanner further includes a handle disposed in the middle of the first body, and a receiving cavity is provided in the handle; a control module disposed in the receiving cavity; and a connecting harness, one end of which is connected to the control module, and the other end of which passes through the opening and is connected to the image acquisition module.

[0014] In one embodiment of this application, the handle is provided with a display component that is signal-connected to the image acquisition module, and / or, the surface of the handle is provided with operation buttons that are connected to the control module, the surface of the handle is provided with a charging port, a storage battery is provided inside the accommodating cavity, the storage battery is connected to the control module, and the charging port and the storage battery are electrically connected.

[0015] In one embodiment of this application, the occlusal groove includes a first occlusal groove and a second occlusal groove, and the groove surfaces of the first occlusal groove and the second occlusal groove are arc-shaped surfaces.

[0016] Applying the technical solution of this utility model, the housing provides structural support for the entire scanner, while the two end faces of the housing fit against the gums, forming a channel to accommodate teeth and gums, adapting to the natural shape of the oral cavity. Since the distance between the upper and lower front teeth and the upper and lower back teeth decreases from large to small when the human mouth is open, the housing is designed with a gradually increasing thickness from the inside to the outside of the oral cavity. This design helps the scanner fit better against the teeth, resulting in superior imaging. Simultaneously, it reduces discomfort caused by mismatch between the housing and the patient's oral cavity shape. This design also allows the housing to be better positioned within the oral cavity, ensuring stability and accuracy during the scanning process. Occlusal grooves are respectively set on the two end faces of the housing to stabilize the upper and lower dental arches, ensuring accurate positioning of teeth and surrounding tissues during scanning. The translucent material design of the occlusal grooves allows the image acquisition module to scan the inside of the oral cavity through the housing. The mounting cavity, located within the housing, houses the image acquisition module and other key components. The image acquisition module, located within the mounting cavity, is responsible for acquiring image information from within the oral cavity; its performance is directly affected by the internal structure of the housing and the design of the external occlusal grooves. This application effectively solves the problem of mismatch between the shape of the oral cavity and the existing oral scanner by designing the shell to be higher in the front and lower in the back, the personalized design of the occlusal groove, the application of light-transmitting materials, and the reasonable layout of components such as the image acquisition module, thereby improving the practicality of the scanner and the user experience of the patient. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the internal structure of an embodiment of the oral scanner according to the present invention is shown;

[0019] Figure 2 A top view of one embodiment of the oral scanner according to the present invention is shown;

[0020] Figure 3 A three-dimensional schematic diagram of an embodiment of the oral scanner according to the present invention is shown.

[0021] The above figures include the following reference numerals:

[0022] 1. Housing; 11. First end face; 12. Second end face; 13. Engaging groove; 14. Mounting cavity; 15. First body; 16. Second body; 2. Image acquisition module; 3. Engaging block; 4. Handle; 41. Receiving cavity; 5. Connecting wire harness; 6. Light source module. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 3 As shown, an embodiment of this utility model provides an oral scanner, including a housing 1. The housing 1 includes a first end face 11 and a second end face 12 that fits against the gums. The vertical distance between the first end face 11 and the second end face 12 gradually decreases from the middle of the housing 1 to both ends of the housing 1. Occlusal grooves 13 are respectively provided on the first end face 11 and the second end face 12, and at least a portion of the upper dental arch and / or lower dental arch extends into the occlusal groove 13. An installation cavity 14 is provided inside the housing 1, and the portion of the housing 1 that surrounds the occlusal groove 13 is made of a light-transmitting material. An image acquisition module 2 is disposed in the installation cavity 14 to acquire image information inside the oral cavity.

[0025] The oral scanner provided by this utility model effectively solves the problem of mismatch between the oral scanner and the shape of the oral cavity in the prior art by designing the shell into a shape that is higher in the front and lower in the back, the personalized design of the occlusal groove, the application of light-transmitting materials, and the reasonable layout of components such as the image acquisition module 2.

[0026] In the above embodiment, the housing 1 provides structural support for the entire scanner, while the first end face 11 and the second end face 12 conform to the gums, forming a channel to accommodate teeth and gums, adapting to the natural shape of the oral cavity. Since the distance between the upper and lower incisors on the front side and the distance between the upper and lower molars on the back side decreases when the human mouth is open, the housing is designed with a gradually increasing thickness from the inside to the outside of the oral cavity. This design helps the scanner to better conform to the teeth, resulting in better imaging. Simultaneously, it reduces discomfort caused by the housing not fitting the patient's oral cavity shape. This design also allows the housing to be better positioned within the oral cavity, ensuring stability and accuracy during the scanning process. Occlusal grooves 13 are respectively disposed on the first end face 11 and the second end face 12 to stabilize the upper and lower dental arches, ensuring accurate positioning of teeth and surrounding tissues during scanning. The translucent material design of the occlusal grooves allows the image acquisition module 2 to scan the interior of the oral cavity through the housing. The mounting cavity 14 is located inside the housing 1 and is used to accommodate the image acquisition module 2 and other key components. The image acquisition module 2 is located inside the mounting cavity 14 and is responsible for acquiring image information inside the oral cavity. Its working effect is directly affected by the internal structure of the shell 1 and the design of the external occlusal groove 13.

[0027] This design allows the scanner to fit more closely to the patient's jawbone, reducing image distortion during acquisition. It is suitable for image acquisition before various oral examinations and treatments, such as orthodontics, implants, and restorations. Through this design, the scanner can more comprehensively capture the fine structure of teeth and the morphology of the jawbone, providing doctors with more accurate diagnostic information. For orthodontic treatment, it can more precisely analyze tooth alignment and occlusion, enabling the development of more effective treatment plans for patients.

[0028] In some embodiments, the image acquisition module 2 can be a commercially available OV9734 model endoscope camera. Multiple image acquisition modules 2 are set for the areas inside and outside the oral cavity that need to be acquired. The distance between two adjacent image acquisition modules 2 corresponds to the distance between the image acquisition module 2 and the inside of the oral cavity to be acquired.

[0029] Specifically, the dental scanner also includes a light source module 6, disposed within the mounting cavity 14 and located between two occlusal grooves 13. A reflective coating is provided on a portion of the inner wall of the mounting cavity 14. The light source module 6's positioning between the two occlusal grooves 13 allows the light source to directly and effectively illuminate the patient's teeth and oral tissues, reducing light loss during transmission. Simultaneously, the reflective coating on the inner wall of the mounting cavity 14 further optimizes the light path, ensuring uniform light distribution within the oral cavity. Even in deep and complex areas of the oral cavity, sufficient illumination is obtained, thereby improving the efficiency and image quality of the image acquisition module 2 and ensuring the accuracy and integrity of the scan data. By providing a reflective coating along the path of the light beam emitted by the light source module, the reflection of the light emitted by the light source within the housing is significantly enhanced, avoiding inaccurate image acquisition due to insufficient local illumination. Uniform lighting conditions are crucial for the image acquisition module to obtain clear, shadow-free images, which directly affects the accuracy of data processing and subsequent analysis.

[0030] The application of a reflective coating replaces the additional optical components that may be required in traditional scanners, such as lenses or optical fibers, thereby reducing the manufacturing cost of the device. At the same time, the integrated design of the light source module 6 with the housing 1 and the engagement groove 13 simplifies the maintenance of the device and reduces the maintenance costs and time that may arise from the independent design of each component.

[0031] Specifically, the reflective coating includes a first reflective coating and a second reflective coating; the housing also includes a first body 15 and a second body 16, which are arranged opposite to each other along the outer to inner direction of the housing 1, and at least a portion of the mounting cavity 14 is located between the first body 15 and the second body 16; the first reflective coating is provided on the side wall surface of the first body 15 opposite to the mounting cavity 14; the second reflective coating is provided on the side wall surface of the second body 16 opposite to the mounting cavity 14; the first body 15 and the second body 16 extend along a predetermined arcuate trajectory. The housing 1, as the external structure of the entire oral scanner, provides the basic frame and support for the scanner. The first body 15 and the second body 16 are components of the housing, and they are arranged opposite to each other along a predetermined arcuate trajectory, forming the boundary of the mounting cavity 14. The first body 15 is located on the side of the housing near the outer surface of the tooth, and the second body 16 is located on the side of the housing near the inner surface of the tooth, together with the first end face 11 and the second end face 12 to form the receiving cavity. The light source module 6 is located between the two engagement grooves 13, ensuring that the light source can be directly aligned with the scanning area, improving light utilization efficiency. Simultaneously, the light emitted by the light source module 6 is optimally distributed under the action of a first reflective coating and a second reflective coating. The first reflective coating is applied to the side wall of the first body 15 opposite to the mounting cavity 14, while the second reflective coating is applied to the same side wall of the second body 16. The coordinated operation of these two coatings enables multiple reflections and uniform diffusion of the light emitted by the light source module 6, ensuring that every part of the scanning area receives sufficient illumination, avoiding imaging defects caused by uneven illumination, and improving the working efficiency and image quality of the image acquisition module 2.

[0032] The above-mentioned reflective coating can be made from the following materials:

[0033] Metal coatings, such as silver, aluminum, and copper, have good reflective properties and can provide high reflectivity. However, metal coatings may oxidize in humid environments and require an additional protective layer.

[0034] Metal oxides, such as aluminum oxide, have good stability and reflectivity, while also improving the corrosion resistance and biocompatibility of coatings.

[0035] Composite materials: such as metal or metal oxides plated on plastic or ceramic substrates, combining the stability of the substrate material with the high reflectivity of the metal coating.

[0036] Holographic reflective materials: Specific optical design materials that can provide high reflectivity within a specific angular range, suitable for applications where the reflection angle needs to be controlled.

[0037] Photonic crystals or microstructured reflective materials: These materials achieve high reflectivity through microstructure design and are suitable for applications requiring specific spectral reflectivity.

[0038] The first body 15 and the second body 16 are relatively parallel arc-shaped surfaces designed to fit the shape of human teeth. The first body 15 and the second body 16 are respectively provided with arc-shaped chamfers at the connection points with the first end face 11 and the second end face 12, as well as at the connection points between the first body 15 and the second body 16, to prevent scratching the inside of the oral cavity when inserted into the oral cavity.

[0039] The dual-coating design of this application further optimizes the illumination effect, ensuring that the image acquisition module captures clear images from multiple angles. This is suitable for oral diseases requiring comprehensive examination, such as tooth alignment and occlusal relationship analysis. The dual-coating design allows light emitted from the light source module to reflect from multiple directions, providing omnidirectional illumination for the image acquisition module. This provides more comprehensive and detailed image information for scenarios requiring a full dental examination, such as pre-orthodontic assessment and post-restoration effect checks. This helps dentists more accurately determine the condition of the teeth and develop more effective treatment plans.

[0040] Specifically, the meshing groove 13 extends along a predetermined curved trajectory, and the functional equation of the predetermined curved trajectory is: Through precise curve design, the occlusal groove can more accurately adapt to the natural alignment of teeth, reducing patient discomfort during use. The predetermined curve trajectory is established with the molar as the origin, the sagittal plane as the x-axis, and the coronal plane as the y-axis. The design of the pre-defined curve trajectory takes into account the natural alignment of teeth, especially the anatomical structure of the upper and lower molar regions. This allows the occlusal groove to more accurately conform to the patient's teeth, improving comfort during the scanning process and reducing scanning errors caused by equipment mismatch with teeth, thus enhancing data acquisition accuracy. The curve design of the occlusal groove follows the natural curvature of teeth and gums. In particular, the parabolic trajectory better adapts to different patients' alveolar shapes and tooth arrangements, reducing the possibility of direct pressure from rigid equipment on teeth and gums. This reduces patient discomfort and fear during the scanning process, improving the user experience. Considering the differences in oral structures among different patients, this curve design of the occlusal groove can adapt to various tooth arrangements to the greatest extent, including crowded, misaligned, or missing teeth. This improves the scanner's versatility and adaptability, making the device suitable not only for adults but also for children or patients with special oral structures.

[0041] In one embodiment of this application, the oral scanner further includes an occlusal block 3, detachably disposed at the end of the housing 1. The occlusal block 3 is elastically disposed, and the gums engage with the occlusal block 3. The height of the occlusal block 3 is greater than the vertical distance between the first end face 11 and the second end face 12, so that at least a portion of the upper dental arch and / or lower dental arch extends into the occlusal groove 13. That is, the two end faces of the occlusal block 3 that contact the gums are respectively higher than the first end face 11 and the second end face 12. In this way, the occlusal block 3 contacts the gums preferentially before the occlusal groove, so that the teeth do not directly contact the inner housing of the occlusal groove, thus avoiding the problem of saliva from the teeth contaminating the housing, resulting in blurred images and unhygienic conditions.

[0042] The bite block 3 is located at the end of the housing 1 and contacts the patient's gums. The removable nature of the bite block 3 allows for easy replacement after use by different patients. The bite head is disposable to prevent cross-infection and can also accommodate different sized bite blocks for patients with different mouth sizes and tooth arrangements, improving the versatility and adaptability of the device and ensuring that every patient receives a suitable biting experience.

[0043] Specifically, the occlusal block 3 is provided with a first connecting portion, and the end of the housing 1 is provided with a second connecting portion. The first and second connecting portions are detachably connected. This detachable design allows for quick replacement of the occlusal block 3 when it wears or is damaged, without needing to replace the entire scanner, reducing maintenance costs and extending the device's lifespan. Furthermore, this design facilitates technological upgrades and updates, allowing for the replacement of the occlusal block with new types without altering the main body of the device to adapt to technological advancements or changes in patient needs.

[0044] Here are some common implementation methods for detachable connections:

[0045] Magnetic connection: The first connecting part on the engagement block can be designed as a surface of magnetic material or have a built-in magnet. The second connecting part at the end of the housing can be a surface of magnetic material that matches the first connecting part, or a magnet with opposite magnetic poles. Through magnetic force, the engagement block can be quickly and stably attached to the housing, and can be easily removed.

[0046] Snap-fit ​​connection: The first connecting part on the interlocking block can be a structure of one or more snaps or hooks. The second connecting part at the end of the housing has a corresponding slot or bayonet design, allowing the snaps on the interlocking block to lock into the slots on the housing, ensuring a secure connection during use. Disassembly is easy by gently pressing or rotating the snaps.

[0047] Elastic clamping connection: The first connecting part on the biting block can be an elastic clip or a spring clip. The second connecting part at the end of the housing can be a clamping point or groove that matches the elastic clip. The biting block is tightly fixed to the end of the housing under the action of clamping force. It can be released by simply pressing or pulling the elastic clip.

[0048] Specifically, the housing also includes a first body 15 and a second body 16, which are arranged opposite to each other along the outer side to the inner side of the housing 1. The first body 15 is provided with an opening. The oral scanner also includes a handle 4, which is located in the middle of the first body 15. The handle 4 is provided with a receiving cavity 41. A control module is located in the receiving cavity 41. A connecting harness 5 is provided, with one end of the connecting harness 5 connected to the control module and the other end of the connecting harness 5 passing through the opening and connected to the image acquisition module.

[0049] Specifically, the handle 4 is equipped with a display component that is connected to the image acquisition module. The surface of the handle 4 has operation buttons that are connected to the control module. Alternatively, the surface of the handle 4 has a charging port, and a battery is housed inside the cavity 41. The battery is connected to the control module, and the charging port is electrically connected to the battery. The handle 4, especially its location in the middle of the first body 15 of the housing, provides a natural grip position for the hand, allowing the operator to control the scanner more stably and naturally during oral scanning, improving operational flexibility and accuracy, and reducing image acquisition errors caused by improper operation. The control module is located in the cavity 41 within the handle 4. This design not only optimizes the utilization of internal space but also makes the overall structure of the scanner more compact. One end of the connecting harness 5 is connected to the control module, and the other end passes through an opening on the first body 15 to connect to the image acquisition module. This layout design makes the wiring of the harness inside the device more reasonable, reducing the possibility of stress and wear on the harness. At the same time, the opening facilitates the replacement and maintenance of the connecting harness, enhancing the maintainability and lifespan of the scanner. Since most of the connecting harness 5 is concealed inside the housing, contact between the harness and the external environment is reduced, lowering the risk of contamination and cross-infection. The handle is ergonomically designed, enhancing the operator's experience and making the control module's buttons or touch panel easier to operate, thus improving interactivity and the device's intelligence. The control module and image acquisition module communicate via the connecting harness 5. This modular design facilitates upgrades and updates, eliminating the need to replace the entire device; only the control module needs replacement or upgrade, reducing both economic and time costs. The built-in battery frees the scanner from power cords, allowing for greater portability and flexibility. This is particularly important in clinical use, enabling doctors to easily carry the scanner between different treatment rooms or examination rooms without searching for power outlets, improving work efficiency. The addition of a charging port allows for convenient charging without the need for complex charging equipment or dedicated chargers. This simplifies maintenance and ensures the device can be quickly recharged before use, preventing interruptions due to insufficient power and improving the continuity of medical services and patient satisfaction. Meanwhile, the design of the charging port usually takes into account waterproofing and dustproofing, further protecting the internal components of the device from the influence of the external environment and improving the durability of the device.

[0050] Specifically, the occlusal groove 13 includes a first occlusal groove 13 and a second occlusal groove 13, the groove surfaces of the first occlusal groove 13 and / or the second occlusal groove 13 being curved surfaces. The curved groove surface can better adapt to the tooth curvature of different patients, ensuring a suitable fit for both maxillary and mandibular teeth within the occlusal groove. This design is particularly beneficial for patients with irregular tooth alignment or different biting habits, ensuring comfort and stability during the scanning process. The good fit between the teeth and the occlusal groove reduces data errors caused by changes in tooth position during scanning, improving the accuracy of scanned images and 3D models. This is crucial for subsequent dental restoration and orthodontic treatment planning, contributing to improved treatment outcomes and patient satisfaction. The curved occlusal groove design allows patients to bite more naturally, reducing the difficulty for doctors or operators in positioning the scanner, simplifying the operation process, and improving work efficiency.

[0051] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0052] Engagement groove design and shell structure:

[0053] Improved adaptability and comfort: The occlusal groove 13 extends along a predetermined curved trajectory, and the groove surface of the occlusal groove is designed as an arc surface, which can better fit the dental arch shape of different patients, ensuring the natural state of the teeth and gums during the scanning process, thereby improving the accuracy of the scan and the comfort of the patient.

[0054] Optimized scanning range: The design of the housing 1 with the vertical distance gradually decreasing from both ends to the middle allows the scanner to maximize the capture of image information inside the patient's mouth while maintaining a compact structure, acquiring a larger range of oral data at once, reducing the number of scans and improving efficiency.

[0055] Hygiene and flexibility of removable bite blocks: The bite block 3 is removable and can be flexibly set, which not only facilitates cleaning and disinfection and reduces the risk of cross-infection, but also allows for the replacement of bite blocks of different sizes according to the size and shape of the patient's mouth, improving the personalization adaptability and versatility of the device.

[0056] Efficient use of light source module and reflective coating: The light source module 6 is set between the two occlusal grooves 13, and a reflective coating is provided on part of the inner wall surface of the mounting cavity 14. This ensures uniform distribution and efficient reflection of light, enabling the image acquisition module 2 to acquire high-quality oral images and further improve scanning accuracy.

[0057] Ease of operation and maintenance:

[0058] Human-computer interaction optimization of handle and display components: The handle 4 is not only easy for the operator to hold, but also integrates display components and operation buttons, realizing instant feedback and intuitive control, enhancing the user-friendliness and ease of operation of the device.

[0059] Integrated design of charging port and battery: The combination of charging port and battery eliminates the need for external power supply for the scanner, enhancing mobility and portability while reducing maintenance costs and ease of use.

[0060] Quick assembly of connecting post and mating hole: The detachable connection between the interlocking block 3 and the housing 1 through the connecting post and mating hole simplifies the replacement process and improves the maintenance efficiency and usage flexibility of the equipment.

[0061] Control and Integration:

[0062] Efficient communication between the control module and the image acquisition module: The connecting harness 5 is connected to the image acquisition module through an opening on the first body 15, ensuring stable data transmission between the control module and the image acquisition module, while reducing interference from external lines to the operation.

[0063] Modular design enhances maintainability and upgradeability: The split design of the housing (first body 15 and second body 16) and the detachable nature of the interlocking block 3 make the maintenance, cleaning and upgrading of the equipment more convenient, reduce long-term use costs and improve the life cycle of the equipment.

[0064] Overall performance optimization: Through the above design, the overall performance of the dental scanner has been improved, including but not limited to scanning accuracy, ease of operation, patient comfort, flexibility of equipment maintenance and upgrades, and reliability of data processing and transmission. These optimizations are of great significance for improving the quality and efficiency of medical services and patient satisfaction.

[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0067] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0068] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0069] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0070] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An oral scanner, characterized in that, include: The housing (1) includes a first end face (11) and a second end face (12) that fit against the gums. The vertical distance between the first end face (11) and the second end face (12) gradually decreases from the middle of the housing (1) to both ends of the housing (1). Occlusal grooves (13) are respectively provided on the first end face (11) and the second end face (12). At least a portion of the upper dental arch and / or the lower dental arch extends into the occlusal groove (13). An installation cavity (14) is provided inside the housing (1). The portion of the housing (1) that surrounds the occlusal groove (13) is made of a light-transmitting material. An image acquisition module (2) is installed in the mounting cavity (14) to acquire image information inside the oral cavity.

2. The oral scanner according to claim 1, characterized in that, The oral scanner also includes: The light source module (6) is disposed in the mounting cavity (14) and located between the two engagement grooves (13). A reflective coating is provided on part of the inner wall surface of the mounting cavity (14).

3. The oral scanner according to claim 2, characterized in that, The reflective coating includes a first reflective coating and a second reflective coating; the housing also includes: The first body (15) and the second body (16) are arranged opposite to each other along the outer to inner direction of the housing (1), and at least a portion of the mounting cavity (14) is located between the first body (15) and the second body (16). A first reflective coating is provided on the side wall surface opposite to the mounting cavity (14) of the first body (15); A second reflective coating is provided on the side wall surface of the second body (16) opposite to the mounting cavity (14); The first body (15) and the second body (16) extend along a predetermined arc trajectory, respectively.

4. The oral scanner according to claim 1, characterized in that, The engagement groove (13) extends along a predetermined curved trajectory, and the functional equation of the predetermined curved trajectory is: 。 5. The oral scanner according to claim 1, characterized in that, The oral scanner also includes: The occlusal block (3) is detachably disposed at the end of the housing (1). The occlusal block (3) is elastically disposed, and the jawbone bites with the occlusal block (3). The height of the occlusal block (3) is greater than the vertical distance between the first end face (11) and the second end face (12) so that a portion of the upper dental arch and / or lower dental arch extends into the occlusal groove (13).

6. The oral scanner according to claim 5, characterized in that, The biting block (3) is provided with a first connecting part, and the end of the housing (1) is provided with a second connecting part. The first connecting part and the second connecting part are detachably connected.

7. The oral scanner according to claim 6, characterized in that, The housing (1) is provided with connecting posts at both ends, and the engagement block (3) is provided with mating holes. At least part of the connecting posts is inserted into the mating holes so that the engagement block (3) is connected to the housing (1).

8. The oral scanner according to claim 1, characterized in that, The housing further includes: a first body (15) and a second body (16), which are disposed opposite to each other along the outer to inner direction of the housing (1), and the first body (15) has an opening; the oral scanner further includes: A handle (4) is located in the middle of the first body (15), and a receiving cavity (41) is provided inside the handle (4). The control module is located within the accommodating cavity (41); A connecting harness (5) is provided, one end of which is connected to the control module, and the other end of which passes through the opening and is connected to the image acquisition module (2).

9. The oral scanner according to claim 8, characterized in that, The handle (4) is provided with a display component that is connected to the image acquisition module (2) by signal, and / or, the surface of the handle (4) is provided with an operation button, the operation button is connected to the control module, and / or, the surface of the handle (4) is provided with a charging port, the cavity (41) is provided with a storage battery, the storage battery is connected to the control module, and the charging port is electrically connected to the storage battery.

10. The oral scanner according to claim 1, characterized in that, The occlusal groove (13) includes a first occlusal groove (13) and a second occlusal groove (13), and the groove surface of the first occlusal groove (13) and / or the second occlusal groove (13) is an arc-shaped surface.

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