Intraoral imaging device and intraoral positioning system

Abstract

The utility model belongs to the technical field of oral cavity imaging equipment, and relates to an intraoral imaging device, the intraoral imaging device comprises a first sleeve bag, a light sensing part and a magnet, the light sensing part is arranged in the first sleeve bag and is used for receiving X-rays emitted by a ray emitting device to form a detection image; and the magnet is arranged outside the first sleeve bag or inside the first sleeve bag so as to position the intraoral imaging device. The utility model further relates to an intraoral positioning system, the magnet used for positioning is arranged in the intraoral imaging device, so that when the receiving ray emitting device gets close to the intraoral imaging device, accurate positioning of the position of the intraoral imaging device is effectively achieved, the magnet can be sealed and protected through the sleeve bag, and the service life of the sleeve bag is prolonged. The magnet is prevented from being in direct contact with the oral cavity of a patient, safety and sanitation are guaranteed, the magnet is prevented from being polluted, meanwhile, the cap bag can be thrown at any time when used, a new first cap bag can be sleeved in the cap bag when used next time, and a dentist can use the cap bag conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of oral imaging equipment, and more specifically, to an intraoral imaging device and an intraoral positioning system. Background Art

[0002] Dental imaging components include an extraoral ray-emitting device for emitting X-rays and an intraoral imaging device. The ray-emitting device is used to emit X-rays, while the intraoral imaging device, placed inside the mouth, receives the X-rays, converts them into electrical signals, and ultimately outputs dental images to client software. Digital imaging is used for testing, but many doctors struggle to master the correct angle and position of the intraoral imaging device. As a result, deformed teeth are often captured, or even the desired teeth are not captured. Multiple X-rays of the patient's teeth are required, which not only prolongs treatment time but also increases patients' concerns about radiation dose. Furthermore, existing technologies often include a positioning device, but placing the positioning device directly in the mouth can contaminate it, making it very troublesome and inconvenient for doctors to use. Utility Model Content

[0003] The technical problem to be solved by the embodiments of the present application is how to effectively and accurately locate the position of the intraoral imaging device.

[0004] In order to solve the above technical problems, the present application provides an intraoral imaging device, which adopts the following technical solutions:

[0005] An intraoral imaging device is used in conjunction with a ray emitting device, the intraoral imaging device comprising a first bag, a photosensitive element and a magnet, the photosensitive element being arranged in the first bag and being used to receive X-rays emitted by the ray emitting device to form a detection image; the magnet being arranged outside the first bag or in the first bag and being used in conjunction with the ray emitting device to position the intraoral imaging device.

[0006] Furthermore, a second bag is provided on the first bag, the second bag is provided with a protective cavity, the magnet is provided in the protective cavity, and the magnet is fixed outside the first bag through the second bag.

[0007] Furthermore, the photosensitive member is configured as a film or a phosphor plate.

[0008] Furthermore, when the photosensitive member is configured as a phosphor plate, the second bag is fixed to one side of the transparent surface of the first bag.

[0009] Furthermore, the outer circumference of the second bag is provided with an inwardly extending easy-tear corner, and the easy-tear corner is triangular.

[0010] Furthermore, the second bag includes a bottom surface and a top surface arranged on the bottom surface, and the protection cavity is formed between the bottom surface and the top surface.

[0011] Furthermore, the height of the bottom surface is greater than the height of the top surface, the bottom surface is provided with a connecting portion higher than the bottom surface, the connecting portion is provided with a fold, the connecting portion is folded along the fold and connected to the top surface to form the protective cavity.

[0012] Furthermore, the magnet is arranged in the first bag, and the magnet is fixedly connected to the first bag or the photosensitive element.

[0013] Furthermore, the photosensitive member is configured as a film or a phosphor plate. When the photosensitive member is configured as a phosphor plate, the magnet is fixed to one side of the black surface of the phosphor plate.

[0014] The present invention provides an intraoral positioning system, which adopts the following technical solutions:

[0015] An intraoral positioning system includes a ray emitting device and an intraoral imaging device. An annular circuit board is provided in the ray emitting device, and a position detection unit is provided on the annular circuit board. The position detection unit includes at least three groups of sensor components for detecting the position of the intraoral imaging device. The sensor components are arranged at intervals on the annular circumference of the annular circuit board.

[0016] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0017] The present application provides a magnet for positioning in the intraoral imaging device, so that when the receiving ray emitting device is close to the intraoral imaging device, it can effectively detect the position of the intraoral imaging device, thereby effectively realizing the accurate positioning of the position of the intraoral imaging device, so as to facilitate the adjustment of the relative position between the ray emitting device and the intraoral imaging device. Compared with the traditional image detection using film bags or phosphorus bags, if the shooting is not good, it needs to be retaken or multiple shots are required, which is time-consuming and labor-intensive. The present application can not only quickly obtain the test results, but also take a picture in one shot, avoiding repeated shooting, shortening the treatment time, and reducing the increase in radiation dose to the patient caused by multiple shots. The bag can also seal and protect the magnet to avoid direct contact between the magnet and the patient's mouth, ensuring safety and hygiene and preventing the magnet from being contaminated. At the same time, the bag can be discarded after use, and a new first bag can be put in the next use, which is convenient for dentists to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the solutions in this application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic structural diagram of the intraoral imaging device according to the first embodiment of the present application;

[0020] Figure 2 This is an exploded view of the intraoral imaging device according to the first embodiment of the present application;

[0021] Figure 3 A front view of the second bagging layer in an open state according to an embodiment of the present application;

[0022] Figure 4 This is a schematic structural diagram of a ray emitting device according to an embodiment of the present application;

[0023] Figure 5 This is a schematic structural diagram of the ring circuit board according to an embodiment of the present application.

[0024] Figure numerals: 100, intraoral imaging device; 1, first bag; 2, photosensitive member; 3, magnet; 4, second bag; 42, tear-off corner; 43, bottom surface; 431, connecting portion; 432, fold; 44, top surface; 200, ray emitting device; 5, ring circuit board; 6, sensor assembly; 61, mounting plate; 62, detection sensor. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Example 1

[0028] Reference Attachment Figure 1 To the attached Figure 3 , an intraoral imaging device for use in conjunction with a ray emitting device 200, the intraoral imaging device 100 includes a first bag 1, a photosensitive member 2 and a magnet 3, the photosensitive member 2 is arranged in the first bag 1 and is used to receive X-rays emitted by the ray emitting device 200 to form a detection image; the magnet 3 is arranged outside the first bag 1 or inside the first bag 1 and is used in conjunction with the ray emitting device 200 to position the intraoral imaging device 100. The intraoral imaging device 100 is provided with a magnet 3 for positioning, so that when the receiving ray emitting device 200 is close to the intraoral imaging device 100, the position of the intraoral imaging device 100 can be effectively detected, thereby effectively realizing the accurate positioning of the position of the intraoral imaging device 100, so as to facilitate the adjustment of the relative position between the ray emitting device 200 and the intraoral imaging device 100. Compared with the traditional image detection using film bags or phosphorus bags, if the shooting is not good, it is necessary to reshoot or take multiple shots, which is time-consuming and labor-intensive. The present application can not only quickly obtain the test results, but also take a picture at one time, avoiding repeated shooting, shortening the treatment time, and reducing the increase in radiation dose to the patient caused by multiple shots. In addition, the bag can also seal and protect the magnet to avoid direct contact between the magnet and the patient's mouth, ensuring safety and hygiene and preventing the magnet from being contaminated. At the same time, the bag can be discarded after use, and a new first bag can be put in the next use, which is convenient for dentists to use.

[0029] Furthermore, the magnet 3 is arranged outside the first bag 1. This facilitates the disassembly and assembly of the magnet 3 when replacement or adjustment of the magnetic force is required. The magnet 3 can also be adjusted according to different application requirements, providing greater flexibility. At the same time, there is no need to consider the installation position and installation space when it is arranged in the first bag 1, thereby reducing processing costs. It is also convenient to retrofit an existing intraoral imaging device, achieving accurate positioning of the intraoral imaging device 100, facilitating adjustment of the relative position between the ray emitting device 200 and the intraoral imaging device 100, and taking an image in one shot, avoiding repeated shooting, shortening treatment time, and reducing the increase in radiation dose to the patient caused by multiple shootings.

[0030] Furthermore, a second bag 4 is provided on the first bag 1. The second bag 4 is provided with a protective cavity. The magnet 3 is provided in the protective cavity and is fixed to the outside of the first bag 1 via the second bag 4. The second bag 4 not only protects the magnet 3, preventing it from directly contacting the inside of the patient's mouth, thereby preventing contamination and preventing the magnet 3 from failing, but also the magnet 3 is fixed in the second bag 4, making it convenient to fix the magnet 3 and to fix the magnet 3 to the first bag 1, thus avoiding errors in the shooting angle and position due to displacement of the magnet 3, reducing repeated shooting, shortening the treatment time, and reducing the increase in radiation dose to the patient caused by multiple shootings.

[0031] Furthermore, the photosensitive member 2 is configured as a film or a phosphor plate. When using film, X-rays will cause the photosensitive emulsion (silver halide crystals) on the film to undergo a chemical reaction to form a latent image, which is then reduced to metallic silver particles through processing steps such as development and fixing, and finally converted into a visible image; the film is a disposable item and needs to be sealed with the first bag 1 before use. When using a phosphor plate, when X-rays are irradiated onto the phosphor plate, the phosphorescent substance absorbs the energy of the X-rays, and then a specific scanner or reading device is used to irradiate the phosphor with a light source such as a laser. The excited phosphorescent substance will release visible light, which is received by the detector and converted into a digital signal, and finally displayed on the computer. The phosphor plate is placed in the first bag 1, and the phosphor plate can be reused.

[0032] Furthermore, when the photosensitive member 2 is configured as a phosphor plate, the second bag 4 is fixed to one side of the transparent surface of the first bag 1. When the photosensitive member 2 is configured as a phosphor plate, since the first bag 1 is provided with a black surface and a transparent surface, and the phosphor plate is provided with a black surface and a photosensitive surface, during installation, the photosensitive surface of the phosphor plate is placed into the first bag 1 with facing the black surface of the first bag 1. During imaging, the photosensitive surface of the phosphor plate needs to face the ray emitting device 200, that is, the black surface of the first bag 1 faces the ray emitting device 200. Therefore, the magnet 3 needs to be provided on one side of the transparent surface of the first bag 1, that is, on the side of the black surface of the phosphor plate, to prevent the magnet 3 from blocking the photosensitive surface of the phosphor plate or affecting imaging. This requirement does not apply when the photosensitive member 2 is configured as a film.

[0033] Furthermore, the magnet 3 can be arranged outside the first bag 1 or inside the second bag 4, and the second bag 4 is fixedly connected to the first bag 1. The magnet 3 is fixed to the first bag 1 through the second bag 4. This technical solution facilitates the installation of the existing intraoral imaging device and realizes the accurate positioning of the intraoral imaging device 100. Of course, it is also possible to adopt a technical solution of providing a mounting groove, mounting bag, etc. for placing the magnet 3 on the first bag 1, or directly fixing the magnet 3 on the first bag 1. Since the magnet needs to be reused and will be placed in the oral cavity during use, the second bag 4, mounting groove, mounting bag, etc. are required to seal the magnet 3 for healthy use and protection of the magnet 3.

[0034] Furthermore, the second bag 4 is fixed to the first bag 1 by a 3M double-sided tape 45. At the same time, due to the limited space in some dental clinics and the wide variety of dental equipment, the intraoral imaging device 100 itself is small in size. If it is placed casually, it will take a lot of time to search for it. The magnet 3 externally placed on the first bag 1 of the intraoral imaging device 100 in this application has an adsorption and placement function, so the intraoral imaging device 100 can be adsorbed and placed on dental equipment or a specific position, such as a dental instrument tray, which is convenient for taking when used, reducing the searching time, and avoiding contamination of the intraoral imaging device 100 caused by random placement, thereby improving the safety of the intraoral imaging device 100. After the inspection is completed, the first bag 1 and the second bag 4 are opened, and the magnet 3 and the photosensitive element 2 are taken out respectively. The magnet 3 is cleaned and disinfected, and the magnet 3 is re-installed into the new second bag 4, and the photosensitive element 2 is installed in the new first bag 1, and the new second bag 4 is fixed on the new first bag 1. After that, the intraoral imaging device 100 can be adsorbed and placed on the dental equipment or a specific location for easy access next time.

[0035] Furthermore, the second bag 4 is fixed at the center of the first bag 1 to improve positioning accuracy.

[0036] Furthermore, the second bag 4 is made of polyethylene. Polyethylene (PE) is non-toxic, odorless, meets food safety standards, has excellent waterproof properties, and is tightly sealed, which helps protect the magnet 3 and prevents the magnet 3 from directly contacting the inside of the patient's mouth, preventing contamination and preventing the magnet 3 from failing.

[0037] Furthermore, the outer periphery of the second bag 4 is provided with an inwardly extending tear-off corner 42, which is triangular in shape. The tear-off corner 42 facilitates the removal of the magnet 3 by directly tearing open the second bag 4 at the tear-off corner 42 after the intraoral imaging device 100 is removed from the oral cavity after the test is completed.

[0038] Furthermore, the second bag 4 includes a bottom surface 43 and a top surface 44 disposed on the bottom surface 43, with the protective cavity formed between the bottom surface 43 and the top surface 44. The protective cavity can form a sealed space to protect the magnet 3, preventing the magnet 3 from directly contacting the inside of the patient's mouth, preventing contamination, and preventing the magnet 3 from failing.

[0039] Furthermore, the bottom surface 43 and the top surface 44 are bonded together using heat-sealing technology. This heat-sealing technology ensures a tight seal on the second bag 4. Polyethylene (PE) is non-toxic and odorless, meeting food safety standards, and has excellent waterproof properties, which helps protect the magnet 3 from direct contact with the inside of the patient's mouth, preventing contamination and preventing the magnet 3 from failing. Of course, the first bag 1 and the second bag 4 have the same structure and processing technology, the only difference being that the volume of the first bag 1 is larger than that of the second bag 4.

[0040] Furthermore, when the bottom surface 43 and the top surface 44 are bonded by heat sealing technology, taking the second bag 4 with a width of 23 mm as an example, the heat sealing width is 2.5 mm, so that the second bag 4 is tightly sealed.

[0041] Furthermore, the height of the bottom surface 43 is greater than the height of the top surface 44. The bottom surface 43 is provided with a connecting portion 431 that is higher than the bottom surface 43. The connecting portion 431 is provided with a fold 432. The connecting portion 431 is folded along the fold 432 and connected to the top surface 44 to form the protective cavity. The connecting portion 431 is conveniently folded along the fold 432 so that the connecting portion 431 is connected to the top surface 44, thereby forming a sealed protective cavity for placing the magnet 3. The installation is convenient. After the connecting portion 431 is folded, it is adhered to the top surface 44 with 3M double-sided tape. After use, the second bag 4 can be directly torn open from the easy-tear corner 42 to remove the magnet 3 without disassembling the connecting portion 431, which is convenient for use.

[0042] Example 2

[0043] Furthermore, the magnet 3 is disposed in the first bag 1, and the magnet 3 is fixedly connected to the first bag 1 or the photosensitive element 2. This not only effectively protects the magnet 3, preventing it from directly contacting the inside of the patient's mouth, preventing contamination, and preventing the magnet 3 from failing, but also the magnet 3 is fixed in the first bag 1, making it convenient to fix the magnet 3, avoiding incorrect shooting angles and positions due to displacement of the magnet 3, reducing repeated shooting, shortening treatment time, and reducing the increase in radiation dose to the patient caused by multiple shootings. The first bag 1 can also seal and protect the magnet 3, preventing it from contacting the patient's mouth and preventing it from being contaminated. There is no need to sterilize the magnet 3 after use. At the same time, the first bag 1 can be discarded after use, and a new first bag 1 can be put in the next use, making it convenient for dentists to use.

[0044] Furthermore, the magnet 3 is fixed in the first bag 1 by 3M double-sided tape, that is, fixed on the protective cavity or the photosensitive element 2. At the same time, due to the limited space in some dental clinics and the wide variety of dental equipment, the intraoral imaging device 100 itself is small in size. If it is placed casually, it will take a lot of time to search for it. The magnet 3 built into the first bag 1 of the intraoral imaging device 100 of the present application has an adsorption and placement function, so the intraoral imaging device 100 can be adsorbed and placed on dental equipment or a specific position, such as a dental instrument tray, which is convenient for taking when used, reducing the searching time, and avoiding the contamination of the intraoral imaging device 100 caused by random placement, thereby improving the safety of the intraoral imaging device 100. After the inspection is completed, the first bag 1 is opened, the magnet 3 and the photosensitive element 2 are taken out, the magnet 3 is cleaned and disinfected, and the magnet 3 and the photosensitive element 2 are re-installed into the new first bag 1. After that, the intraoral imaging device 100 can be adsorbed and placed on the dental equipment or a specific location for easy access next time.

[0045] Furthermore, the photosensitive member 2 is configured as a film or a phosphor plate. When the photosensitive member 2 is configured as a phosphor plate, the magnet 3 is fixed on one side of the black surface of the phosphor plate. Since the phosphor plate is provided with a black surface and a photosensitive surface, the first bag 1 is provided with a black surface and a transparent surface. When installed, the photosensitive surface of the phosphor plate is placed into the first bag 1 with facing the black surface of the first bag 1. During imaging, the photosensitive surface of the phosphor plate needs to face the ray emitting device 200, that is, the black surface of the first bag 1 faces the ray emitting device 200. Therefore, the magnet 3 needs to be arranged in the first bag 1 and on one side of the black surface of the phosphor plate, that is, to prevent the magnet 3 from blocking the photosensitive surface or affecting the imaging. Of course, the photosensitive member 2 is usually covered with a protective card, such as a paper card sleeve, when in use, and then the photosensitive member 2 covered with the protective card is placed in the first bag 1. At this time, the magnet 3 can be fixed on the protective card to avoid damage to the photosensitive member 2.

[0046] Furthermore, the second bag 4 is fixed at the center of the photosensitive element 2 to improve the accuracy of positioning. The embodiment of the present application provides an intraoral positioning system, which adopts the following technical solution:

[0047] An intraoral positioning system includes a ray emitting device 200 and an intraoral imaging device 100. An annular circuit board 5 is provided in the ray emitting device 200, and a position detection unit is provided on the annular circuit board 5. The position detection unit includes at least three groups of sensor components 6 for detecting the position of the intraoral imaging device 100. The sensor components 6 are arranged at intervals on the annular circumference of the annular circuit board 5.

[0048] The ray emitting device 200 can effectively detect the position of the intraoral imaging device 100 through the sensor components 6 spaced apart on the annular circuit board 5, thereby effectively achieving accurate positioning of the position of the intraoral imaging device, so as to facilitate adjustment of the relative position between the ray emitting device 200 and the intraoral imaging device 100. Compared with the traditional image detection using film bags or phosphor bags, if the shooting is not good, it needs to be retaken or multiple shots are required, which is time-consuming and labor-intensive. The present application can not only quickly obtain the test results, but also take a picture in one shot, avoiding repeated shooting, shortening the treatment time, and reducing the increase in radiation dose to the patient caused by multiple shots. In addition, the bag can also seal and protect the magnet to avoid direct contact between the magnet and the patient's mouth, ensuring safety and hygiene and preventing the magnet from being contaminated. At the same time, the bag can be used and discarded, and a new first bag can be put in the next use, which is convenient for dentists to use.

[0049] Reference Attachment Figure 4 To the attached Figure 5Furthermore, each of the sensing components 6 includes a mounting plate 61 and six detection sensors 62. The detection sensors 62 are configured as Hall sensors. The position detection unit senses the position of the magnet 3 through the Hall effect of the Hall sensor, thereby achieving the positioning of the intraoral imaging device 100. Compared with traditional image detection using film bags or phosphor bags, if the image is not taken well, it must be retaken or multiple shots are required, which is time-consuming and labor-intensive. The present application can not only quickly obtain the detection results, but also take images in one shot, avoiding repeated shooting, shortening the treatment time, and reducing the increase in radiation dose to the patient caused by multiple shots.

[0050] Furthermore, the magnet 3 is arranged at the center position of the intraoral imaging device 100 to improve the accuracy of positioning. The position detection unit detects the position of the magnet 3 from multiple directions through multiple sensor components 6 evenly distributed on the circumference. When the ray emitting device 200 approaches the magnet 3, its electromotive force will change. The measured magnetic field strength will be different at different distances, and the output value will change accordingly. The ray emitting device 200 obtains and processes the data on the Hall sensor in real time to generate corresponding position information, and sends it to the display through the communication unit for display, so that the user can adjust the position of the ray emitting device 200 in time. The intraoral imaging device 100 is connected to the computer client through a USB port, which is convenient for displaying the captured detection pictures on the computer client.

[0051] Furthermore, the mounting plate 61 is vertically fixed on the annular circuit board 5, and the detection sensors 62 are installed in groups of a predetermined number on the mounting plate 61 and the annular circuit board 5. The detection sensors 62 of each sensing assembly 6 are correspondingly distributed in the six coordinate directions of the three-dimensional coordinate system, wherein the three-dimensional coordinate system refers to a three-dimensional space XYZ coordinate system established with the circumferential center of the annular circuit board 5 as the origin, the axial direction of the annular circuit board 5 as the Y-axis, the horizontal direction perpendicular to the Y-axis as the X-axis, and the diameter direction vertically perpendicular to the Y-axis as the Z-axis. The six coordinate directions of the three-dimensional space correspond to the extension directions of the X-axis, Y-axis, and Z-axis.

[0052] Furthermore, the number of sensor assemblies 6 is at least three. When there are three sensor assemblies 6, the angle formed by adjacent sensor assemblies 6 on the annular circumference of the annular circuit board 5 is 120 degrees. When there are four sensor assemblies 6, the angle formed by adjacent sensor assemblies 6 on the annular circumference of the annular circuit board 5 is 90 degrees. Similarly, the number of sensor assemblies 6 can be adjusted according to actual conditions. In this embodiment, there are three sensor assemblies 6, each of which includes two mounting plates 61, one of which has a length parallel to the X-axis of the three-dimensional coordinate system, the other of which has a length parallel to the Z-axis of the three-dimensional coordinate system, and the height of the mounting plates 61 is perpendicular to the annular circuit board 5. The mounting plates 61 have two mounting surfaces, and the detection sensors 62 are mounted in groups of two on different mounting surfaces of the mounting plates 61.

[0053] Furthermore, the mounting plate 61 can also be set in an L shape, so that a part of the L-shaped mounting plate is parallel to the X-axis direction of the above-mentioned three-dimensional coordinate system, and the other part of the L-shaped mounting plate is parallel to the Z-axis direction of the above-mentioned three-dimensional coordinate system, thereby forming the orientation of the above-mentioned two mounting plates 61.

[0054] Furthermore, the above-mentioned sensor components 6 are evenly distributed on the annular circumference of the annular circuit board 5 at a certain circumferential angle. In a specific implementation, the sensor components 6 may not be evenly distributed at a certain circumferential angle. For example, the angle between sensor component 1 and sensor component 2 on the circumference is 90 degrees, the angle between sensor component 2 and sensor component 3 on the circumference is 120 degrees, and the angle between sensor component 3 and sensor component 1 on the circumference is 150 degrees. When the sensor components 6 are not evenly distributed on the annular circumference, the algorithm stored in the data processing unit should be adjusted accordingly.

[0055] Specifically, each sensor assembly 6 includes six detection sensors 62, which are mounted on a mounting surface of a mounting plate 61 parallel to the X-axis of the three-dimensional coordinate system, a mounting surface of a mounting plate 61 parallel to the Z-axis of the three-dimensional coordinate system, and both sides of the annular circuit board 5. The two side faces of the annular circuit board 5 are parallel to the height direction of the mounting plate 61. After the detection sensors 62 are installed, the orientation of each detection sensor 62 corresponds to a coordinate direction in a three-axis coordinate system established with the center of the annular circuit board 5 as the center point. By vertically positioning the mounting plate 61 on the annular circuit board 5 and grouping a predetermined number of detection sensors 62 on the mounting plate 61 and the annular circuit board 5, the detection sensors 62 are distributed in corresponding coordinate directions of the three-dimensional coordinate system, thereby enabling the sensor assembly 6 to accurately detect the relative position of the intraoral imaging device in three-dimensional space.

[0056] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.

Claims

1. An intraoral imaging device for use with a ray emitting device (200), characterized in that: The intraoral imaging device (100) comprises a first bag (1), a photosensitive element (2) and a magnet (3); the photosensitive element (2) is arranged in the first bag (1) and is used to receive X-rays emitted by a ray emitting device (200) to form a detection image; the magnet (3) is arranged outside the first bag (1) or inside the first bag (1) and is used in conjunction with the ray emitting device (200) to position the intraoral imaging device (100).

2. The intraoral imaging device according to claim 1, wherein A second bag (4) is also provided on the first bag (1), the second bag (4) being provided with a protective cavity, the magnet (3) being provided in the protective cavity, and the magnet (3) being fixed to the outside of the first bag (1) through the second bag (4).

3. The intraoral imaging device according to claim 2, wherein: The photosensitive member (2) is configured as a film or a phosphor plate.

4. The intraoral imaging device according to claim 3, wherein: When the photosensitive member (2) is configured as a phosphor plate, the second bag (4) is fixed on one side of the transparent surface of the first bag (1).

5. The intraoral imaging device according to claim 2, wherein: The outer periphery of the second bag (4) is provided with an inwardly extending easy-tear corner (42), and the easy-tear corner (42) is triangular.

6. The intraoral imaging device according to claim 2, wherein: The second bag (4) comprises a bottom surface (43) and a top surface (44) arranged on the bottom surface (43), and the protection cavity is formed between the bottom surface (43) and the top surface (44).

7. The intraoral imaging device according to claim 6, wherein: The height of the bottom surface (43) is greater than the height of the top surface (44); the bottom surface (43) is provided with a connecting portion (431) higher than the bottom surface (43); a fold (432) is provided on the connecting portion (431); the connecting portion (431) is folded along the fold (432) and connected to the top surface (44) to form the protective cavity.

8. The intraoral imaging device according to claim 1, wherein: The magnet (3) is arranged in the first bag (1), and the magnet (3) is fixedly connected to the first bag (1) or the photosensitive element (2).

9. The intraoral imaging device according to claim 8, wherein: The photosensitive member (2) is configured as a film or a phosphor plate. When the photosensitive member (2) is configured as a phosphor plate, the magnet (3) is fixed on one side of the black surface of the phosphor plate.

10. An intraoral positioning system, characterized in that: The intraoral positioning system includes a ray emitting device (200) and an intraoral imaging device (100) as described in any one of claims 1 to 9, wherein an annular circuit board (5) is provided in the ray emitting device (200), and a position detection unit is provided on the annular circuit board (5), and the position detection unit includes at least three groups of sensor components (6) for detecting the position of the intraoral imaging device (100), and the sensor components (6) are arranged at intervals on the annular circumference of the annular circuit board (5).

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