Intraoral imaging devices, medical devices, and programs

Abstract

To provide an auxiliary material for determination on a disease in which there occur differences in intraoral findings.SOLUTION: There are provided an intraoral imaging device, a medical device, and a program for providing an auxiliary material for determination on a disease in which there occur differences in intraoral findings. The intraoral imaging device includes: an imaging device for acquiring an intraoral image; a light source for emitting light onto a subject of the imaging device; a storage device for storing an algorithm for determining a predetermined disease; and an arithmetic device. The arithmetic device executes determination processing for determining the possibility of the predetermined disease and output processing for outputting a result of the determination processing on the basis of the image and the algorithm.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an intraoral imaging device for imaging the oral cavity, a medical device including the intraoral imaging device and an intraoral imaging aid, and a program for determining a predetermined disease based on the captured intraoral image.

Background Art

[0002] Non-Patent Document 1 reports that the lymphoid follicles that appear in the deepest part of the pharynx have a pattern specific to influenza. Lymphoid follicles having such a pattern will be referred to as influenza follicles. Influenza follicles are characteristic signs of influenza and are said to appear about 2 hours after the onset.

Prior Art Documents

Non-Patent Documents

[0003]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Accurate discrimination of influenza follicles is expected to lead to a dramatic improvement in the accuracy of diagnosis. However, appropriate determination of influenza follicles requires intensive training through many cases and is not easy for general physicians. Unfortunately, the above research results are only utilized among a limited range of physicians. Here, there are many diseases other than influenza that show differences in pharyngeal findings. Such diseases The same points mentioned above may also apply to the diagnosis of the patient. Furthermore, imaging diagnostics are also useful for diseases where there are differences in oral findings.

[0005] Therefore, the present invention provides auxiliary materials for making judgments regarding diseases that show differences in oral findings. The objective is to provide an intraoral imaging device, medical device, and program that can perform this function. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides an imaging device for acquiring images of the inside of the mouth, and the The imaging device stores a light source that illuminates the subject and an algorithm for determining a specific disease. A photographing apparatus comprising a memory device and a processing unit, wherein the processing unit processes the image and A determination process to determine the possibility of the predetermined disease based on the algorithm, and the determination The present invention provides an intraoral imaging device characterized by performing an output process that outputs the results of the processing. . Here, "oral cavity" includes the oral cavity and pharynx of all animals, as well as humans. The term "pharynx" shall also include the Waldeyer's ring, which contains the lymphoid follicles of the posterior pharyngeal wall. Therefore, in this invention, "patient" includes not only humans but also animals in general. Furthermore, the light source broadly includes anything that can achieve the purpose of photography, and emits visible light. Alternatively, invisible light such as near-infrared or infrared light may be used for irradiation.

[0007] In the intraoral imaging device of the present invention having the above configuration, the imaging device and the image The computer then acquires a video, and the computer selects from among a plurality of still images contained in the video. Furthermore, an extraction process is performed to extract at least one still image that satisfies predetermined conditions, and the above The determination process may be performed based on the results of the extraction process. Here, the acquisition of moving images means, This means capturing images using an imaging device, and may also involve recording the captured images onto a recording medium. It is not necessary to include it. Also, the specified conditions may be conditions related to the content of the image, The conditions could also relate to the timing of image extraction.

[0008] Furthermore, the intraoral imaging device of the present invention having the above configuration accepts patient information input. The system further includes an input device, and the calculation device further performs the determination process based on the patient information. You may proceed.

[0009] Furthermore, the intraoral imaging apparatus of the present invention having the above configuration is provided by the imaging device A display device that further displays at least one of the acquired image and the results of the extraction process. It's a good idea to be prepared.

[0010] Furthermore, in the intraoral imaging apparatus of the present invention having the above configuration, the imaging device is, Images of the inside of the mouth are acquired within a cylindrical intraoral imaging aid that is inserted into the mouth, and the storage device The system stores identification information of used intraoral imaging aids, and the calculation device uses this information for new determinations. An acquisition process to obtain identification information of the oral imaging aid, and the oral imaging used for the new determination A search process to check whether there is a record in the storage device that matches the identification information of the imaging aid, and the A restriction process may be further performed to restrict the new determination based on the results of the search process.

[0011] The present invention comprises the above-described intraoral imaging device and a cylindrical intraoral imaging aid that is detachably attached to the inside of the mouth. The device includes, and the intraoral imaging aid has a first end having an opening and the opposite end to the first end. is located on the side and provides a field of view from the inside to the outside of the intraoral imaging aid and a second end portion having a window portion, and provides a medical device characterized by including the same.

[0012] Further, the present invention provides a program for causing a computer including a storage device storing an algorithm for determining a predetermined disease and an arithmetic device to execute a determination process for determining the possibility of the predetermined disease based on the intraoral image acquired by the imaging device and the algorithm, and an output process for outputting the result of the determination process.

Advantages of the Invention

[0013] According to the present invention, it is possible to provide an auxiliary material for judgment regarding a disease in which a difference appears in the findings in the oral cavity.

[0014]

Brief Description of the Drawings

[0015] The following describes a medical device including an intraoral imaging device and an intraoral imaging aid, which are representative embodiments of the present invention. The configuration will be described in detail with reference to the drawings. However, the present invention is not limited to such embodiments and drawings. It is not fixed. Furthermore, the drawings are for conceptually illustrating the present invention. If, for the sake of easier understanding, dimensions, ratios, or numbers are exaggerated or simplified as necessary. There are also others.

[0016] Furthermore, the following disclosure assumes that the medical device will be used for influenza diagnosis. However, the present invention is not limited to this. For example, streptococcal infections, adenovirus infections, Many diseases, such as EB virus infection and mycoplasma infection, show differences in pharyngeal findings. They exist. Furthermore, these diseases can also present with important findings in the oral cavity. Other diseases may also present with findings in the oral cavity. Medical devices may be used to diagnose any disease in which findings appear. The shooting aid can be used in combination with other devices such as smartphones and tablet devices. It may be used.

[0017] 1. Overview of Medical Devices Referring to Figure 1, the outline of the medical device 1 of this embodiment will be described. As shown in the figure, the medical device 1 includes an intraoral imaging device 5 and an intraoral imaging aid 3. The intraoral imaging device 5 is an intraoral imaging device. It is preferable to use it in combination with the imaging aid 3, but it can also be used alone or in combination with other aids. They may be used together.

[0018] The intraoral imaging device 5 includes an imaging device 57 that acquires an image of the subject, and this device 5 has dedicated software pre-installed. The user (for example, a doctor) The person being evaluated (e.g., a patient) suspected of having influenza is instructed to hold the oral imaging aid 3 in their mouth. Ensure a clear field of view for imaging. After that, the user places the imaging device 57 into the intraoral imaging aid. Insert into 3 and photograph the pharynx 72 of the subject 7. The user also uses the intraoral imaging aid 3. By adjusting the insertion depth and insertion angle, it is also possible to photograph the oral cavity 71 of subject 7. Alternatively, the user may use the intraoral imaging support unit 3, which houses the imaging device 57, as the object of determination. It may be inserted into the mouth of person 7, or the oral imaging support unit 3 may be inserted into the mouth of person 7 being evaluated. good.

[0019] The captured images are processed by a pre-generated judgment algorithm. The principle is intended to be performed using the intraoral imaging device 5, but it can also be performed using other computers. Good. For example, if the diagnosis concerns the possibility of influenza, then influenza follicles, etc. The diagnostic algorithm detects pharyngeal symptoms (patterns) specific to influenza, and It displays the level of detail. This allows even inexperienced doctors or residents to accurately and early on... This will enable the diagnosis of influenza. Furthermore, it will provide useful diagnostic data for experienced physicians. It can be obtained. Furthermore, the accuracy of influenza diagnosis will increase, meaning patients will only need to visit the doctor once. This allows patients to complete their hospital visits and receive appropriate treatment from an earlier stage.

[0020] 2-1 Intraoral imaging aids The intraoral imaging aid 3 of this embodiment will be described in detail with reference to Figures 2-4. The intraoral imaging aid 3 is used to photograph the inside of a person's mouth (oral cavity 71 and pharynx 72). It is an auxiliary tool. More specifically, the intraoral photography aid 3 is used when taking intraoral photographs of the oral cavity 7 Inserted into 1 to obtain a good field of view of the imaging area including the oral cavity 71 or pharynx 72. Furthermore, from the perspective of obtaining a better field of view, the intraoral imaging aid 3 has light-transmitting properties. This is preferable. In this embodiment, a mouthpiece is assumed as an example of an intraoral imaging aid 3. Yes, but it is not limited to this.

[0021] As shown in Figure 2, the intraoral imaging aid 3 comprises a main body 31, a flange portion 34, and a restricting portion 35. However, the intraoral imaging aid 3 only needs to have the main body 31, and the flange 34 and regulating part It is not necessary to have both or one of 35. In this embodiment, as the intraoral imaging aid 3 While a single-piece molded resin product is envisioned, the intraoral imaging aid 3 can be made of paper, cloth, metal, etc. It may be made from other materials, or from multiple materials. Also, intraoral radiography aids Assistive device 3 is intended to be a disposable type, but a reusable type is also acceptable.

[0022] The main body 31 has a cylindrical shape overall. The main body 31 is inserted deeply into the oral cavity 71. As can be seen, for example, from the comparison between Figure 1 and Figure 21, the tongue 73 is pushed downwards, The soft palate 74 is pushed upward. This can be seen, for example, from the comparison between Figure 4 and Figure 22. This allows for a good view of the pharynx 72 from inside the intraoral imaging aid 3 (main body 31).

[0023] In this embodiment, the main body 31 extends substantially in a nearly straight line. That is, the main body 31 The inner and outer diameters are substantially constant along the longitudinal direction. However, the body 31 has an inner circumference Even if part or all of the surface is curved, as long as it does not obstruct the sliding of the imaging device 57 on the surface The inner or outer diameter of the main body 31 may also be changed.

[0024] The cross-sectional shape of the main body 31 is assumed to be a perfect circle. However, the cross-sectional shape is... It can be elliptical, or a polygonal cross-section like a square, or even roughly D-shaped. The shape may be asymmetrical. If the main body 31 has an elliptical, polygonal, or asymmetrical cross-sectional shape, The imaging device 57, which corresponds to the shape of the main body 31, when sliding within the main body 31, Because circumferential movement (i.e., rotation) centered on the axial direction is restricted or suppressed, it is suitable for determination. This allows us to obtain intraoral images with aligned orientations.

[0025] If the main body 31 has a perfectly circular cross-sectional shape, the imaging device 57 will be described later using Figure 6. By providing rails and protrusions that engage with each other on the outer surface and the inner circumferential surface of the main body 31, the imaging data The rotation of the vise 57 within the main body 31 may be restricted.

[0026] As shown in Figure 3, the main body 31 includes ends 32 and 33 located on opposite sides of each other. When the imaging aid 3 is attached to the oral cavity 71, the end portion 32 is exposed to the outside, and the end portion 33 is attached to the oral cavity 7 It will be located within 1. Therefore, end 32 will be at the first end and end 33 will be at the second end. It corresponds to.

[0027] The outer surface of the main body 31 is smooth, and the main body 31 and the end 33 are also smooth via the connecting surface 36. They are connected in a continuous, integrated manner. In other words, the outer surface of the main body 31 does not injure the oral cavity 71. It is processed to be smooth so as not to scratch.

[0028] The main body 31 has a scale 37. The scale 37 is arranged along the longitudinal direction of the main body 31. This serves as an indicator of how deeply the main body 31 is inserted into the oral cavity 71. The raised portion 37 may be provided on either the outer or inner surface of the main body 31. The scale 37 is When provided on the outer surface, as shown in Figure 2, the side that comes into contact with the upper lip and upper front teeth 75, It is preferable to place it on the upper side. The scale 37 is arranged at predetermined intervals (for example, in 1 cm increments). It would be good to do so. Also, the scale 37 shown in Figure 2 has a length of nearly half a circumference in the circumferential direction of the main body 31. It may have, but is not limited to, and can be short or long.

[0029] In this embodiment, as an example of the scale 37, there are multiple scales aligned along the longitudinal direction of the main body 31. This is a raised area. The surface of this raised area is designed so as not to injure the oral cavity of the person being evaluated (7). It is preferable that it be smoothly machined. However, the scale 37 is, for example, on the outer surface of the main body 31. It may be a substantially straight convex portion extending in the longitudinal direction, and may also be on the outer or inner circumferential surface of the main body 31. It may be printed or displayed.

[0030] As shown in Figure 3, the end portion 32 has an opening 32A, and the imaging device 57 is inserted into the opening 32A. It is possible to insert it. Therefore, the imaging device 57 is inserted from the aperture 32A to the main body 31 It will be inserted inside and then removed from the main body 31 through opening 32A.

[0031] A flange portion 34 is provided at the end portion 32. The flange portion 34 extends radially from the end portion 32 to the main body 31. It extends outward. The flange portion 34 is determined when the main body 31 penetrates deep into the oral cavity 71. The oral imaging aid 3 comes into contact with the lips or front teeth of the subject 7, and the subject 7 accidentally swallows the oral imaging aid 3. This prevents the following. In other words, the flange portion 34 functions as a stopper. In this embodiment, the flange The portion 34 is provided around the entire circumference of the end portion 32, but for example, at the end portion 32, the upper lip and It may be partially formed in the area corresponding to the lower lip. Also, the outer edge of the flange portion 34 is as shown in Figure 2. It can be a perfect circle, an ellipse, or even a polygon like a square.

[0032] The flange portion 34 receives droplets from the mouth of the person being assessed 7 when the person being assessed coughs, for example. It hits. In other words, the flange 34 also helps the doctor avoid droplets from the person being examined 7. For example, in order to provide this droplet prevention function, depending on the age and physique of the user, the flange part 3 You can select the appropriate shape and dimensions from option 4.

[0033] The end portion 33 is also open, forming a window portion 33A. This window portion 33A is inside the main body 31 This is to provide a field of view from the side to the outside of the main unit 31, and here the imaging data inside the main unit 31 The lens of the vice 57 is exposed to the outside. However, the window portion 33A is made of, for example, a transparent material. It may be covered.

[0034] The end portion 33 protrudes inward from the main body 31, forming a restricting portion 35. Restricting portion 35 This is to restrict the imaging device 57 inside the main body 31 from making contact and passing through the end 33. It is provided there. However, the restricting portion 35 does not have to be provided at the end portion 33. For example The guide portion 141 (recess or groove), which will be described later in relation to Figure 6, is used for imaging at its terminal end. Contact with the engaging projection 57A of the device 57, restricting the movement of the imaging device 57 toward the back. Furthermore, it also fulfills the role of regulatory department 35.

[0035] When photographing the pharynx 72 using the intraoral imaging aid 3 described above, the user is as shown in Figure 1. As described above, the intraoral imaging aid 3 is inserted into the oral cavity 71 of the person being evaluated 7. At this time, the main body 31 The tongue 73 is pushed downwards and the soft palate 74 is pushed upwards. Afterwards, or simultaneously, the user takes Insert the imaging device 57 into the main body 31. At this time, as shown in Figure 4, the imaging device 5 The tongue 73 and soft palate 74 are either not included in the field of view of 7, or if they are included, they occupy only a small area. Therefore, a good view of the pharynx 72 can be obtained.

[0036] Furthermore, the flange portion 34 prevents the subject 7 from accidentally swallowing the oral imaging aid 3. Yes, it is possible. In addition, the flange portion 34 suppresses the scattering of droplets from the mouth of the person being judged 7 to the user, This can reduce the risk of secondary infections such as influenza in patients with the virus.

[0037] Furthermore, the scale 37 is used to adjust the intraoral imaging aid 3 according to the physique and imaging area of ​​the person being evaluated 7. This allows for precise placement at the depth of the oral cavity. This enables the capture of clear images of the intended area. In addition to contributing to the shadow, inserting the main body 31 deeper than necessary can cause discomfort to the person being judged 7 It can suppress feelings of pleasure and choking.

[0038] 2-2 Modified example of an intraoral imaging aid 1 Referring to Figures 5-7, an intraoral imaging aid 13 according to Modification 1 of this embodiment will be described. The intraoral imaging aid 13 has the same components as the intraoral imaging aid 3 described above, and is further approximately straight It includes a linear guide portion 141. On the other hand, the imaging device 57 has an engaging projection that engages with the guide portion 141. This includes the start 57A. Therefore, the guide section 141 is such that the imaging device 57 is relative to the main body 131. The body 131 can slide without rotating.

[0039] In Modification 1, as shown in Figure 6, an example of the guide portion 141 is the outer surface of the imaging device 57. It extends in a substantially straight line from end 132 toward end 133 so as to correspond to the upper engaging projection 57A. It is a groove. Alternatively, the guide portion 141 may be a pair of rails protruding from the inner circumferential surface of the main body. good.

[0040] Selectively, the cross-sectional shape of the main body 131 is elliptical, polygonal, or, for example, roughly D-shaped. It has an asymmetrical shape, and the imaging device 57 has an external shape that corresponds to the cross-sectional shape of the main body 131. In this case, the imaging device 57 moves within the main body 131 without rotating relative to the main body 131. Since it is rideable, the inner surface of the main body 131 in this case also functions as a guide. Yes.

[0041] As shown in Figure 5, the outer surfaces of the main body 131 and the flange portion 134 are in contact with the lips of the person being judged 7. An indicator 142 is provided to facilitate the positioning of the main body 131. (Figure 7) As shown, the instruction mark 142 is, for example, directed to the center of the upper lip or the upper front teeth 75 of the person being assessed 7. It should be placed in the corresponding position, that is, in the center of the top. For example, when the user moves the instruction display 142 By aligning the intraoral imaging aid 3 with the center of the upper lip of the person being evaluated 7 and attaching it to the oral cavity 71, As a result, the orientation of the images captured by the imaging device 57 will be almost the same. As a result, machine learning using images and the detection of specific diseases (e.g., influenza) are being developed. It will become easier.

[0042] 2-3 Modified example of an intraoral imaging aid (2) Referring to Figure 8, a modified example of this embodiment, a modified intraoral imaging aid 23, will be described. The intraoral imaging aid 23 has the same components as the intraoral imaging aid 3 described above, and furthermore, The body 231 has at least one hole 243. The hole 243 is on the inside and outside of the body 231. It penetrates between them. Through this hole 243, the subject 7 who is holding the oral imaging aid 23 in their mouth can be examined. This makes breathing easier and can bring a sense of security to the person being assessed (7). Note that hole 2 The size, number, and arrangement of the 43 items were set appropriately so that it would be difficult for the saliva of the subject 7 to enter them. stomach. The components of the above-described modified example 2, for example, the guide part, can be applied to the above embodiment and modified example 1. It is also possible.

[0043] 2-4 Modified example of an intraoral imaging aid 3 Referring to Figures 9 and 10, an intraoral photography aid 43 according to Modification 3 of this embodiment will be described. The intraoral imaging aid 43 has the same components as the intraoral imaging aid 3 described above.

[0044] The main body 431 of the intraoral imaging aid 43 is a transparent or translucent resin molded product. Therefore The imaging area of ​​the intraoral imaging device 5 is wider than the area visible from the window section 433A, and is wider than the area visible from the window section 433A. A wide field of view can be obtained. Also, the inner diameter of the main body 431 is directed from end 432 to end 433. It has become slightly smaller, which makes it easier to mold the resin of the intraoral imaging aid 43. ru.

[0045] As shown in Figure 10, the scale 437 is formed on the inner circumferential surface of the main body 431, and thus the main body The outer surface of 431 can be made smooth. The scale 437 is from the inner surface of the main body 431. This could be a protruding projection, or a mark displayed or applied to the inner surface.

[0046] As shown in Figure 9, the outer edge of the flange portion 434 is elongated in the vertical direction, and this allows the inside of the mouth The imaging aid 43 can be easily positioned relative to the lips of the person being evaluated 7. The outer edge of the flange portion 434 protrudes toward the end portion 433 or is formed to be thicker than the other portion. This allows us to reduce the amount and cost of material for the flange portion 434 while ensuring the necessary strength. It is.

[0047] 2-5 Other variations of intraoral radiography aids The main body 31 does not need to have substantially the same inner diameter from end 32 to end 33. For example, the main body 31 may be configured such that its inner diameter increases towards the end portion 32. The trumpet-shaped body 31 makes it possible to stack multiple intraoral imaging aids 3. This reduces the space required for transportation and storage.

[0048] Furthermore, the imaging device 57 is a camera mounted on a smartphone or tablet device. A can be adopted. The positional relationship between such a camera and the intraoral imaging aid 3 (opening 32A) To secure the connection, a frame or clip may be provided on the main body 31 or the flange portion 34. For example, The internal shooting aid 3 includes a clip for holding the smartphone from the top or side edge, and It may also have an L-shaped frame for pressing against the corners of the phone.

[0049] 2-6 Examples of packaging for intraoral imaging aids The intraoral imaging aid 3 is sterilized and individually packaged in a bag 9 with identifier 91 displayed, as shown in Figure 11. It may be packaged in this way, which allows for hygienic management of the intraoral imaging aid 3. Identifier 91 may be displayed on the intraoral imaging aid 3.

[0050] Identifier 91 includes identification information, such as the product ID of the intraoral imaging aid 3. Examples of child 91 include barcodes and RF tags, which can be read by the intraoral imaging device 5. Considering the use of the medical device 1 in a medical institution, a barcode is preferred. For this purpose, both one-dimensional and two-dimensional barcodes can be used.

[0051] For example, before taking an image of the inside of the mouth, the identification 91 is captured with the imaging device 57, and the inside of the mouth in the bag 9 is then photographed. By reading the identification information of the assistive device 3 into the intraoral imaging device 5, the corresponding intraoral imaging assistive device 3 is identified. You can check the information. This will allow you to check the harmful effects on the patient from contact with the oral cavity. Even if an elephant occurs, traceability can be ensured, and the intraoral imaging aid 3 It will also be possible to detect reuse, thereby preventing contamination and secondary infections caused by it, and improving hygiene. This ensures safety.

[0052] 3-1 Intraoral imaging device The intraoral imaging device 5 will be described in detail with reference to Figures 12-20. The intraoral imaging device 5 is a computer that includes an imaging device, a processing unit, and a storage device. Here, we assume that the intraoral imaging device 5 is composed of one computer. It may consist of multiple computers. For example, in remote image diagnosis, the imaging function The judgment function and the other functions may be performed by separate computers. The intraoral imaging device 5 is shown in Figure 13. As shown, the imaging device 57 and the central processing unit (CPU) 51 as an example of a computing device Random access memory (RAM) 52 and read-only memory as examples of storage devices. ROM 53, communication interface 54, input device 55, output device 56 and It is equipped with a light source 58.

[0053] The communication interface 54 is a wired or wireless communication module, for example, an application Acquisition and updating of the judgment program and judgment algorithm, and the processing of captured images. It is used for receiving (transmitting) data. Examples of wireless communication interfaces include Wi-Fi. Wireless LAN standards like Fi, and short-range wireless communication standards like Bluetooth (trademark) It is assumed that the device will meet either the third-generation or fourth-generation mobile communication standard, but It's not limited.

[0054] The input device 55 is an example of an input device that accepts user input, for example, as shown in Figure 12. These are various operation buttons and operation keys as shown. Alternatively, the input device 55 is a touch Other input methods such as a control panel, microphone, control dial, or stylus may also be used. The force device 55 may be placed on the main body (housing) of the intraoral imaging device 5, or for example, on the imaging device It may be placed in chair 57. The output device 56 is an example of an output device that outputs the judgment result, such as a display. These are speakers and printers.

[0055] The imaging device 57 acquires an image. In this embodiment, the imaging device 57 acquires an image. The desired image is a video. The acquired image size will be, for example, 640x480. For pixels, a frame rate of, for example, 30fps is sufficient. However, the image size and frame rate... The room rate is not limited to this. The imaging device 57 may be selectively or additionally capable of capturing still images. When taking still images, it is desirable that the imaging device 57 has a continuous shooting function, It is not limited to that.

[0056] In this embodiment, as shown in Figure 12, the imaging device 57 is the main body of the intraoral imaging device 5 ( It is intended to be separated from the housing and inserted independently into the intraoral imaging aid 3. Device 57 also has an outer shape (for example, a cylinder) that corresponds to the inner circumferential surface of the main body 31 of the intraoral imaging aid 3. It is preferable that it has the shape. However, the imaging device 57 is, for example, like a smartphone or tablet device, It may be incorporated into the main body of the internal imaging device 5.

[0057] The imaging device 57 has an autofocus mechanism (not shown), for example, a lens The focus may be set to a specific area in front of it. The imaging device 57 also, Even if it has the function to automatically recognize a specific area (for example, the posterior pharyngeal wall) and focus on it, Good. The imaging device 57 also has a zoom function, for example, of the posterior pharyngeal wall or follicles. The settings may be configured to photograph at an appropriate magnification depending on the dimensions.

[0058] While the imaging device 57 is in operation, light may be shone from the light source 58 toward the subject. This ensures the availability of high-quality images. Here, the light emitted by the light source 58 is visible light. It is also acceptable to use invisible light such as near-infrared or infrared light. For example, one light source emits visible light, and other light sources emit near-infrared or infrared light, and multiple light sources Each of the light sources 58 may be responsible for irradiating light within a specific range of wavelengths.

[0059] In contrast, the imaging device 57 is capable of appropriately receiving the light emitted by the light source 58 and It is preferable to have a number of light-receiving elements. For example, if the light source 58 emits visible light, the imaging data Vice 57 has a light-receiving element suitable for receiving visible light, and the light source 58 emits non-visible light. In this case, the imaging device 57 has a photodetector suitable for receiving non-visible light. The light source 58 may be, for example, a light-emitting diode (LED) or an organic electroluminescent element. OEL is fine.

[0060] Selectively, while the imaging device 57 is in operation, the display as the output device 56 will display: The program may be programmed to display the image being captured overlaid with a semi-transparent illustration. The user can see the illustration overlapping with images of the corresponding body parts (e.g., the uvula or palatine tonsil). By moving the imaging device 57 in this way, it becomes possible to obtain an image suitable for judgment. .

[0061] ROM53 is an application program for performing various processes in the intraoral imaging device 5. It stores programs and algorithms for diagnosing specific diseases. ROM53 is Furthermore, the image acquired by the imaging device 57 and the identification information of the intraoral imaging aid 3, input device Even if various information entered from chair 55 (for example, information on person 7 being judged) and the judgment result are stored, Good. ROM53 is an internal type, but for example, it can be a USB memory or MicroSD card. It could be a detachable type, or even a memory storage for an external computer such as an external server. The device's memory area may also be included.

[0062] The CPU 51 reads the application program stored in the ROM 53 into the RAM 52. The image data can then be used to perform various processes, including the following steps (a) to (d). If the image acquired by Vice 57 is a single still image, the extraction process may be omitted. stomach.

[0063] 3-2 Main processes performed by the CPU (a) Extraction process The CPU 51 selects from the image acquired from the imaging device 57 that at least meets predetermined conditions. A still image is also extracted. For example, if the imaging device 57 captures a moving image, C PU51 extracts at least one still image from among multiple still images contained in a video. To output. When shooting video, still images are recorded at a predetermined frame rate. Among them are The images should include both those taken under good and poor conditions. These will be used in the next judgment process. Select a few images with good shooting conditions to use as the final image.

[0064] For example, based on a large amount of similar image data, a specific shooting angle and a specific light source can be used. In addition, the width of a specific field of view, the position of depicting a specific area (e.g., the pharynx), and the focus on a specific area Meeting all or part of the criteria improves the accuracy of the diagnosis of specific diseases (e.g., influenza). We identify the condition that the [condition] is high, and use this as the criterion for judging the quality of the shooting conditions. When such criteria are adopted, the extraction process will, for example, depict the subject to be photographed, as shown in Figure 18. Images are ranked based on their position (step S31), and the degree of focus on a specific area is determined accordingly. Images are ranked based on (step S32), and images are ranked based on the light illumination state. (Step S33), and finally, select a few images that rank highly in the overall ranking (S The procedure will be as follows (Step S34). Additionally, before calculating the overall ranking, the field of view will be broadened. Alternatively, the images may be ranked according to the criteria of the shooting angle. Or, the extraction process may involve You may also use deep learning capabilities.

[0065] (b) Determination process The CPU 51 processes the image acquired from the imaging device 57 (for example, the image obtained in the extraction process, at least Based on a single still image and a judgment algorithm stored in ROM53, a specific disease is diagnosed. Determine the possibility. In this embodiment, the specific disease is influenza. For the determination , information on the person to be judged 7 entered by the user via the input device 55 (hereinafter referred to as patient information) (u) may be used in combination. Patient information may include, for example, age, sex, time elapsed since onset, and The presence or absence of influenza symptoms (cough, runny nose, chills, etc.), and comparison with other influenza patients. This includes contact history. Patient information includes race, genetic information, date and season, and location information (latitude and longitude of the place of consultation). It may include all or part of the temperature (degrees) and weather information (e.g., weather, temperature, etc.).

[0066] Here, the decision algorithm may be generated by, for example, the procedure shown in Figure 17. For example, in the case of influenza, first, a medical institution takes a pharyngeal image of the patient, and Collect the attached correct label indicating whether or not the person has influenza (Step S21). The decryption label is, for example, a rapid influenza test using a swab administered to the patient, P It is awarded based on the results of CR testing and virus isolation culture testing. PCR testing and virus Although isolation culture testing takes several weeks to yield results, it exhibits extremely high accuracy. The results are suitable as correct labels. Furthermore, correct labels are not only based on image data. The above patient information may be included.

[0067] Next, the result of the above PCR test or virus isolation culture test is labeled as the correct answer. The assigned training data (image data) is generated (step S22). Next, machine learning is performed to generate a judgment algorithm (step S23). Gorhythm is a tool that, when given an image, determines whether or not the image appears to be related to influenza. This is a metric. This allows us to quantify the probability of having the flu, for example, " It will be possible to show "98.5%".

[0068] Selectively, for example, "Result: Influenza positive" and "Result: Influenza negative" In this case, a positive or negative result may be determined. The reliability of the indicator can be quantified or shown using a tiered evaluation such as high, medium, or low. Alternatively, the indicator can be used to express the reliability of the indicator. The degree of certainty that it is influenza may be indicated using a scale such as high, medium, or low.

[0069] (c) Output processing CPU51 outputs the result of the judgment process. One example of output method is displaying it on a screen. This involves sending data to another computer.

[0070] (d) Acquisition of identification information for intraoral imaging aids Selectively, CPU51 performs intraoral imaging for use in a new determination prior to that determination. The user may be asked to input identification information for assistive device 3. For example, the user may input identification information for the imaging device 57. When identifier 91 is captured, the CPU 51 uses the image of identifier 91 to determine the corresponding intraoral imaging assistance. Obtain identification information for component 3.

[0071] Next, the CPU 51 searches the records in the ROM 53 and finds the corresponding intraoral imaging aid 3. To check whether there is a record of doing so. Alternatively, CPU 51 checks the oral imaging aid 3 on the external server. You may have them investigate the usage records.

[0072] If no matching records are found, CPU51 allows a new determination. If a matching record exists... In this case, the CPU 51 determines that the relevant intraoral imaging aid 3 has been used. CPU51 can, for example, display an alarm on the display or terminate a series of processes. It is also possible to do so. In other words, CPU51 can restrict new decisions depending on the search results. can.

[0073] 3-3 Functional configuration of intraoral imaging device Figure 14 shows the functional configuration of the intraoral imaging device 5. The intraoral imaging device 5 consists of an imaging unit 61 and an extraction unit 62, determination unit 63, camera control 64, storage unit 65, input unit 66, output unit 67 and communication unit 6 It includes 8. To show the correspondence with the hardware configuration of the intraoral imaging device 5, the imaging unit 61 The imaging device 57, the extraction unit 62, the determination unit 63, and the camera control unit 64 are controlled by the CPU 51. The memory unit 65 is connected to the ROM 53, the input unit 66 is connected to the input device 55, and the output unit 67 is connected to the output device 56 corresponds to the communication unit 68, and the communication interface 54 corresponds to the communication interface 54. Here, the camera Control 64 controls the imaging device 57 to perform various functions such as autofocus and zoom. It enables the function.

[0074] Other functions of the intraoral imaging device 5 include a timing function to acquire the time when imaging was performed, and Location information acquisition function to obtain location information where shadows were cast, and weather information for that location. It may also have a weather information acquisition function. The timekeeping function may be implemented as a built-in clock. It may also function as a communication interface for accessing an external time server. The location information acquisition function may be implemented, for example, as the Global Positioning System (GPS). The weather information acquisition function is a function of the communication interface that accesses an external weather server. That's good too.

[0075] 3-4 Example of operation of an intraoral imaging device 1 Referring to Figure 15, an example of operation 1 of the intraoral imaging device 5 will be explained. Here, the intraoral imaging device 5 The following is an example of the operation when capturing moving images. However, the intraoral imaging device 5 does not capture still images. Shadowing is also acceptable, and in this case, the intraoral imaging device 5 operates similarly.

[0076] When power is turned on, the intraoral imaging device 5 starts taking images with the imaging device 57. In addition to displaying it on the screen, in step S1, the recording button (input device 55) Determine whether one of the buttons has been pressed. If the recording button has not been confirmed to have been pressed, then the oral cavity The imaging device 5 repeats step S1.

[0077] Upon confirming that the recording button has been pressed, the intraoral imaging device 5 opens the recording in step S2. The process begins. At the same time, the intraoral imaging device 5 turns on the light source 58. The user then examines the subject 7. An intraoral imaging aid 3 is attached to the oral cavity 71, and then an imaging device 57 is attached to the intraoral imaging aid 3. Insert (see Figure 1). The imaging device 57 also makes decisions while sliding within the intraoral imaging aid 3. The inside of the mouth (oral cavity 71 or pharynx 72) of subject 7 will be photographed.

[0078] In step S3, the intraoral imaging device 5 captures multiple still images included in the acquired video. From among them, a still image appropriate for the determination is extracted. At this time, the extracted still image is extracted The result may be displayed on the screen.

[0079] In step S4, the intraoral imaging device 5 uses the extracted still image and a determination algorithm. Based on this, the likelihood of a specific disease is determined, and in step S5, the determination result is displayed, for example, Output to the game. This completes the series of operations.

[0080] In this way, the possibility of a specific disease is determined using a judgment algorithm generated by machine learning. Since this is being evaluated, you can expect highly accurate judgment results. Because images with good shooting conditions are selected for evaluation, the accuracy of the evaluation is improved. When the intraoral imaging device 5 is used in combination with the intraoral imaging aid 3, a wide field of view and clear images are obtained. This allows us to obtain clear images, which contributes to improved detection accuracy.

[0081] 3-5 Example of operation of an intraoral imaging device 2 Referring to Figure 16, we will explain example 2 of the operation of the intraoral imaging device 5. This example 2 of operation is described above. This includes the same steps as in Operation Example 1, and further includes a user confirmation step of the extracted image (S14 ), includes a step for entering patient information (S16), and an overall assessment (S17).

[0082] Specifically, when the intraoral imaging device 5 is powered on, it confirms that the recording button has been pressed ( Step S11), start recording (Step S12), and extract images for judgment (Step S12) (S13). The intraoral imaging device 5 then displays the extracted image on a display, for example. , the user is asked to confirm whether or not to use the image for the determination (Step S 14) If the user selects "NO", steps S12 and S13 are executed again, and a new Present an image to the user for shelf identification.

[0083] If the user selects "YES" in step S14, the intraoral imaging device 5 will extract Based on the images, the likelihood of a specific disease is determined (Step S15).

[0084] Next, the intraoral imaging device 5 prompts the user to input patient information (step S16). ). Here, patient information is standardized, such as body temperature at the time of visit and whether or not they have been vaccinated. This is simple information. As illustrated in Figure 9, the software can process this patient information. Input is processed uniformly. For example, dropdown menus and rejecting anything other than half-width numbers. Input form settings such as the above may be used. Alternatively, the intraoral imaging device 5 may be wired or It retrieves patient information from an external computer (e.g., an electronic medical record system) via a wireless connection. It may be advantageous. Note that step S16 may be performed prior to step S11.

[0085] Then, by integrating the above patient information with an assessment of the likelihood of a specific disease based on imaging, The overall likelihood of the disease is calculated (step S17). The calculation results are displayed, for example, in a display. It is displayed on Ray (step S18), and the series of steps is complete.

[0086] In this way, the intraoral imaging device 5 detects specific diseases based on images confirmed by the user. By evaluating the probabilities, the accuracy and reliability of the judgment improve. Furthermore, if the diagnosis is based on patient information, the accuracy and reliability of the diagnosis are expected to improve even further. To be waited for.

[0087] 3-6 Example of operation of an intraoral imaging device 3 Refer to Figure 19 to explain Operation Example 3 of the intraoral imaging device 5. This Operation Example 3 is for intraoral imaging. The procedure includes steps (step S41) to obtain identification information for assistive device 3.

[0088] Specifically, when the intraoral imaging device 5 is powered on, in step S41, for example The user is then prompted to input identification information for the intraoral imaging aid 3 via a display. To request, for example, the user may take a picture of the identifier 91 on the bag 9 with the imaging device 57, or input device When identification information is input via the chair 55, the intraoral imaging device 5 uses the intraoral imaging aid 3. Obtain identification information.

[0089] The intraoral imaging device 5 uses the identification information to look up the lot information of the intraoral imaging aid 3. It is also fine. For example, the intraoral imaging device 5 records the product of the intraoral imaging aid 3 in the ROM 53. You can search to see if the ID is included, or you can check the presence or absence of the product ID on an external computer. I'll have them investigate.

[0090] If the corresponding product ID is found in the internal or external records, the intraoral imaging device 5 will trigger an alarm. You may output a message or terminate the series of processes. As an alarm, for example, the relevant One example is the display showing that the intraoral imaging aid 3 has been used. Restrict the reuse of intraoral imaging aid 3 and ensure the safety of intraoral imaging aid 3, including the prevention of secondary infections. It is improving. In addition, there is a one-to-one correspondence between the intraoral imaging aid 3 and the subjects 7 who use it for evaluation. This makes it possible to track data, which will facilitate future follow-up studies.

[0091] Subsequently, the intraoral imaging device 5 takes images of the inside of the mouth in step S42. The shooting process may be the same as in the operation examples 1 and 2 described above, or it may be performed using the procedure described later. Good. Then, the intraoral imaging device 5 determines the likelihood of a specific disease in step S43, In step S44, the judgment result is output, and the series of processes is terminated.

[0092] 3-7 Other examples of intraoral photography Refer to Figure 20 to describe other procedures for intraoral photography. The procedures described here are the same as those described above. This procedure can be used as a substitute for the image acquisition procedure in Examples 1-3. Furthermore, this procedure is suitable for machine learning training. It can be used to collect training data.

[0093] First, in step S51, the intraoral imaging device 5 performs patient registration. Patient registration is, for example, This is done by the user recording the patient ID entered into or photographed by the intraoral imaging device 5.

[0094] Next, in step S52, the intraoral imaging device 5 acquires an image. This is a still image, for example, selected from images captured by the imaging device 57. It may consist of a set of still images extracted at time intervals (for example, every second).

[0095] Then, in step S53, the intraoral imaging device 5 displays the acquired image, for example, on a display. Display it on the ray and ask the user for confirmation. Approval is obtained from the user in step S54. Then, the intraoral imaging device 5 saves the image approved in step S55 and takes a series of photographs. The process will be terminated. If user approval is not obtained, the process will return to step S52 and the image will be processed again. Obtain it.

[0096] Although typical embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Rather, various design modifications are possible, and these are also included in the present invention. As described above, For example, streptococcal infection, adenovirus infection, EB virus infection, mycoplasma infection It can also be applied to the diagnosis of diseases such as infectious diseases, where there are differences in findings in the pharynx or oral cavity. [Explanation of Symbols]

[0097] 1. Medical devices, 3, 13, 23, 43... Intraoral imaging aids, 5. Intraoral imaging device, 31,131,231,431...Main unit, 34,134,234,434... Guard section, 35,135,235,435...Regulatory Department, 37,137,237,437... scale markings, 55...Input devices, 56... Output device, 57. Imaging device, 58...Light source.

Claims

1. An intraoral imaging device comprising: an imaging device for acquiring images of the inside of the mouth; a storage device for storing an algorithm for determining infectious diseases that cause findings in the inside of the mouth; and a computing device, The aforementioned intraoral imaging device is A determination process for determining the possibility of infection based on the oral cavity image acquired by the imaging device and the algorithm, An output process that outputs the result of the aforementioned determination process, An intraoral imaging device configured to perform [a specific action].

2. The intraoral imaging device according to claim 1, wherein the possibility of infection is indicated by at least one of the following: positive or negative for the infection, reliability of the determination, and degree of certainty of the infection.

3. The intraoral imaging device further comprises an output device, The result of the determination process is output to the output device. The intraoral imaging device according to claim 1.

4. The intraoral imaging device according to Claim 1, Includes a cylindrical intraoral imaging aid that is detachably attached to the inside of the mouth, The aforementioned intraoral imaging aid is A first end having an opening, A second end is located on the opposite side of the first end and has a window that provides a field of view from the inside of the intraoral imaging aid to the outside of the intraoral imaging aid, A medical device characterized by including [a certain component].

5. An intraoral imaging device comprising an imaging device for acquiring images of the inside of the mouth, a storage device for storing an algorithm for determining infectious diseases that cause findings in the inside of the mouth, and a computing device, A determination process for determining the possibility of infection based on the image of the oral cavity captured by the imaging device and the algorithm, An output process that outputs the result of the aforementioned determination process, A program to execute.

Images