WO2023170788A1 - 補助具、撮影装置、プログラム及び方法 - Google Patents

補助具、撮影装置、プログラム及び方法 Download PDF

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Publication number
WO2023170788A1
WO2023170788A1 PCT/JP2022/010014 JP2022010014W WO2023170788A1 WO 2023170788 A1 WO2023170788 A1 WO 2023170788A1 JP 2022010014 W JP2022010014 W JP 2022010014W WO 2023170788 A1 WO2023170788 A1 WO 2023170788A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
auxiliary tool
oral cavity
cover
imaging device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/010014
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
秋穂 佐久間
卓志 安見
渉 ▲高▼橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aillis Inc
Original Assignee
Aillis Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aillis Inc filed Critical Aillis Inc
Priority to PCT/JP2022/010014 priority Critical patent/WO2023170788A1/ja
Priority to CN202280093303.5A priority patent/CN118843419A/zh
Priority to EP22930773.1A priority patent/EP4491093A4/en
Priority to JP2024505699A priority patent/JP7819968B2/ja
Publication of WO2023170788A1 publication Critical patent/WO2023170788A1/ja
Priority to US18/823,997 priority patent/US20250000353A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
    • A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
    • A61B1/000096—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope using artificial intelligence
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00043—Operational features of endoscopes provided with output arrangements
    • A61B1/00055—Operational features of endoscopes provided with output arrangements for alerting the user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00089—Hoods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00105—Constructional details of the endoscope body characterised by modular construction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00154—Holding or positioning arrangements using guiding arrangements for insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B13/00—Instruments for depressing the tongue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means
    • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Definitions

  • the present disclosure relates to an auxiliary tool suitable for photographing a subject's oral cavity that assists in photographing, a photographing device, a program, and a method for photographing the inside of the oral cavity using the auxiliary tool.
  • Non-Patent Document 1 reports that lymphoid follicles appearing in the deepest part of the pharynx located in the oral cavity have a pattern unique to influenza. Lymphoid follicles with this unique pattern are called influenza follicles, which are a characteristic sign of influenza and appear about two hours after the onset of symptoms.
  • influenza follicles which are a characteristic sign of influenza and appear about two hours after the onset of symptoms.
  • such a pharynx region has been diagnosed by direct visual inspection by a doctor, and diagnosis using images has not been made.
  • the present disclosure provides various embodiments of an auxiliary device suitable for photographing a subject's oral cavity that assists in photographing, and a photographing device that photographs the inside of the oral cavity using the auxiliary device.
  • the purpose is to provide programs and methods.
  • an auxiliary tool that is inserted into the oral cavity for intraoral imaging using a imaging device, and includes a main body shaped like a body, and the imaging device can be inserted into the main body. , an opening configured at an end of the main body in a direction opposite to the direction in which the auxiliary tool is inserted into the oral cavity;
  • the main body and the cover are arranged such that the cover is arranged at the end of the main body in the direction in which the auxiliary device is inserted into the oral cavity, and the cover is arranged at the end of the main body in the direction in which the auxiliary device is inserted into the oral cavity.
  • a cover frame configured such that at least a portion of the cover frame is reflected within the angle of view photographed by the photographing device inserted from the opening.
  • a cylindrical main body that is inserted into the oral cavity for intraoral imaging, and an end portion of the main body in a direction opposite to the direction in which it is inserted into the oral cavity.
  • a cover configured at an end of the main body in a direction to be inserted into the oral cavity; and a cover disposed at an end of the main body in a direction to be inserted into the oral cavity.
  • An imaging device that is inserted into the main body through the opening with respect to an auxiliary tool that includes a cover frame configured to connect the main body and the cover, and includes at least one processor;
  • the at least one processor starts capturing a subject image by accepting an operation input from a user, and determines that at least a portion of the cover frame is included in the subject image based on the captured subject image.
  • the apparatus is configured to perform processing for outputting information indicating that the imaging device is not inserted into the auxiliary tool if the at least part of the auxiliary device is not included as a result of determining whether or not the auxiliary tool is included.
  • "Photography equipment" is provided.
  • a cylindrical main body that is inserted into the oral cavity for intraoral imaging, and an end portion of the main body in a direction opposite to the direction in which it is inserted into the oral cavity.
  • a cover configured at an end of the main body in a direction to be inserted into the oral cavity; and a cover disposed at an end of the main body in a direction to be inserted into the oral cavity.
  • an auxiliary tool including a cover frame configured to connect the main body and the cover, the photographing device inserted into the main body through the opening can be inserted into the subject by receiving an operation input from the user.
  • a program that functions as a processor configured to perform processing for outputting information indicating that the imaging device is not inserted into the auxiliary device.
  • a cylindrical main body that is inserted into the oral cavity for intraoral imaging, and an end portion of the main body in a direction opposite to the direction in which it is inserted into the oral cavity.
  • a cover configured at an end of the main body in a direction to be inserted into the oral cavity; and a cover disposed at an end of the main body in a direction to be inserted into the oral cavity.
  • an auxiliary tool suitable for photographing the oral cavity of a subject which assists the photographing, and a photographing device, program, and method for photographing the inside of the oral cavity using the auxiliary tool.
  • FIG. 1 is a diagram showing a usage state of a processing system 1 according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram showing a usage state of the processing system 1 according to an embodiment of the present disclosure.
  • FIG. 3A is a schematic diagram of a processing system 1 according to an embodiment of the present disclosure.
  • FIG. 3B is a top view showing the configuration of the imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 4 is a perspective view showing the configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 5 is a side view showing the configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram showing how the imaging device 200 and the auxiliary tool 300 are used according to an embodiment of the present disclosure.
  • FIG. 1 is a diagram showing a usage state of a processing system 1 according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram showing a usage state of the processing system 1 according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram showing how the imaging device 200 and the auxiliary tool 300 are attached according to an embodiment of the present disclosure.
  • FIG. 8A is a schematic diagram showing the front configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 8B is a schematic diagram showing a partial cross-sectional configuration of the distal end 314 of the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram showing a front configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram showing a cross-sectional configuration of an imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram showing the configuration of the upper surface of the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 8A is a schematic diagram showing the front configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 8B is a schematic diagram showing a partial cross-sectional configuration of the distal end 314
  • FIG. 12 is a schematic diagram showing the configuration of the positioning mechanism 329 of the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram showing the configuration of the plate 334 of the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 14 is a block diagram showing the configuration of an imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 15 is a diagram showing a processing flow executed in the imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 16 is a diagram illustrating a processing flow related to generation of a trained model according to an embodiment of the present disclosure.
  • FIG. 17 is a diagram illustrating an example of a screen output by the imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 18 is a diagram illustrating an example of a screen output by the imaging device 200 according to an embodiment of the present disclosure.
  • the processing system 1 according to the present disclosure is mainly used to obtain a subject image in which the inside of a subject's oral cavity is photographed.
  • the processing system 1 is used to image the back of the throat of the oral cavity, specifically, the pharynx. Therefore, in the following, a case will be mainly described in which the processing system 1 according to the present disclosure is used to photograph the pharynx.
  • the pharynx is an example of a site to be imaged, and the processing system 1 according to the present disclosure can of course be suitably used for other sites such as tonsils within the oral cavity.
  • the processing system 1 determines the possibility of contracting a predetermined disease from a subject image obtained by photographing a subject including at least the pharyngeal region of the oral cavity of a subject, and diagnoses the predetermined disease. or used to assist in that.
  • An example of a disease determined by the processing system 1 is influenza.
  • the possibility of influenza infection is usually diagnosed by examining the subject's pharynx and tonsils and determining the presence or absence of findings such as follicles in the pharynx region.
  • the processing system 1 determine the possibility of contracting influenza and outputting the result, it becomes possible to diagnose or assist. Note that the determination of the possibility of contracting influenza is one example.
  • the processing system 1 can be suitably used for any disease that causes a difference in oral findings depending on the disease.
  • differences in findings are not limited to those discovered by a doctor or the like and whose existence is medically known.
  • any difference that can be recognized by a person other than a doctor or that can be detected by artificial intelligence or image recognition technology can be suitably applied to the processing system 1.
  • diseases include, in addition to influenza, infectious diseases such as streptococcal infection, adenovirus infection, EB virus infection, mycoplasma infection, hand-foot-and-mouth disease, herpangina, candidiasis, arteriosclerosis, diabetes, Diseases that exhibit vascular disorders or mucosal disorders such as hypertension, and tumors such as oral cavity cancer, tongue cancer, and pharyngeal cancer are included.
  • infectious diseases such as streptococcal infection, adenovirus infection, EB virus infection, mycoplasma infection, hand-foot-and-mouth disease, herpangina, candidiasis, arteriosclerosis, diabetes, Diseases that exhibit vascular disorders or mucosal disorders such as hypertension, and tumors such as oral cavity cancer, tongue cancer, and pharyngeal cancer are included.
  • subjects to be photographed by the photographing device 200 may include any human being, such as a patient, a subject, a diagnostic user, and a healthy person.
  • the user who holds the imaging device 200 and performs the imaging operation is not limited to medical personnel such as doctors, nurses, and laboratory technicians, but may include any person such as the user himself/herself.
  • the processing system 1 according to the present disclosure is typically used in a medical institution.
  • the present invention is not limited to this case, and the device may be used at any location such as the user's home, school, or workplace.
  • the subject and the user are only used as names to refer to the above-mentioned persons, and they may be different persons or may be the same person. Good too. That is, when a person uses an imaging device to take an image of his or her own oral cavity, that person can be both the subject and the user.
  • the subject only needs to include at least a part of the subject's oral cavity. Further, any disease may be determined as long as it shows a difference in findings in the oral cavity. However, in the following, a case will be described in which the subject includes the pharynx or the vicinity of the pharynx, and the possibility of contracting influenza is determined as the disease.
  • the subject image and the determination image may be one or more moving images or one or more still images.
  • the camera captures a live view image, and the captured live view image is displayed on the display 203. Thereafter, when the user presses the photographing button, one or more still images are photographed by the camera, and the photographed images are displayed on the display 203.
  • shooting button shooting of a moving image is started, and the image being shot with the camera during that time is displayed on the display 203. Then, when the shooting button is pressed again, shooting of the moving image is finished.
  • various images such as through images, still images, and moving images are taken by the camera and displayed on the display.
  • the subject image or the determination image may be subjected to various image processing, resulting in a processed image.
  • the subject image and the determination image do not mean only specific images among them, but may include all of these images taken with a camera.
  • all such subject images do not necessarily include at least a part of the oral cavity, and as mentioned above, in the case of through-the-lens images, at least a part of the oral cavity may not be included.
  • FIG. 1 is a diagram showing a usage state of a processing system 1 according to an embodiment of the present disclosure.
  • a processing system 1 according to the present disclosure includes a processing device 100 and an imaging device 200.
  • the user attaches the auxiliary tool 300 to the distal end of the imaging device 200 so as to cover it, and inserts the imaging device 200 together with the auxiliary tool 300 into the oral cavity 710 of the subject.
  • a user (which may be the subject 700 himself or a user different from the subject 700) attaches the auxiliary tool 300 to the tip of the imaging device 200 so as to cover it.
  • the user inserts the imaging device 200 with the auxiliary tool 300 attached into the oral cavity 710.
  • the tip of the auxiliary tool 300 passes through the incisors 711 and is inserted to the vicinity of the soft palate 713. That is, the imaging device 200 is similarly inserted up to the vicinity of the soft palate 713.
  • the tongue 714 is pushed downward by the auxiliary tool 300 (functioning as a tongue depressor), and the movement of the tongue 714 is restricted.
  • the user can secure a good field of view of the imaging device 200 and can take good pictures of the pharynx 715 located in front of the imaging device 200.
  • the photographing device 200 is inserted into the oral cavity 710 of the subject.
  • the auxiliary tool 300 by covering the tip of the imaging device 200 with the auxiliary tool 300, it is possible to prevent the imaging device 200 from coming into direct contact with mucous membranes in the oral cavity, saliva, body fluids, etc., and to prevent the imaging device 200 from being contaminated. It becomes possible. Note that if such an auxiliary tool 300 is not used, at least the tip portion of the photographing device 200 needs to be disinfected, cleaned, etc. each time it is used. Therefore, it is desirable to use the auxiliary tool 300 also from the viewpoint of saving the user's effort.
  • the photographed subject image (typically, an image including the pharynx 715) is transmitted from the photographing device 200 to the processing device 100, which is communicably connected via a wired or wireless network.
  • the processor of the processing device 100 that has received the subject image processes the program stored in the memory, thereby selecting a judgment image to be used for judgment from the subject image, and using the judgment image to determine the prevalence of a predetermined disease. The possibility of is determined.
  • the results are then output to a display or the like.
  • FIG. 2 is a diagram showing a usage state of the processing system 1 according to an embodiment of the present disclosure. Specifically, FIG. 2 is a diagram showing a state in which the photographing device 200 of the processing system 1 is held by the user 600.
  • the imaging device 200 is composed of a main body 201, a grip 202, and a display 203 from the side inserted into the oral cavity.
  • the main body 201 and the grip 202 are formed into a substantially columnar shape with a predetermined length along the insertion direction H into the oral cavity.
  • the display 203 is arranged on the side of the grip 202 opposite to the main body 201 side.
  • the photographing device 200 is formed into a generally columnar shape as a whole, and is held by the user 600 in a manner similar to holding a pencil. That is, since the display panel of the display 203 faces toward the user 600 when in use, it is possible to easily handle the photographing device 200 while checking the subject image photographed by the photographing device 200 in real time.
  • the photographing button 220 is arranged on the top side of the grip. Therefore, when the user 600 holds it, the user 600 can easily press the shooting button 220 with his/her index finger or the like.
  • FIG. 3 is a schematic diagram of processing system 1 according to an embodiment of the present disclosure.
  • the processing system 1 includes a processing device 100 and an imaging device 200 communicably connected to the processing device 100 via a wired or wireless network.
  • the processing device 100 receives operation inputs from the user and controls photographing by the photographing device 200.
  • the processing device 100 processes the subject image photographed by the photographing device 200 to determine the possibility that the subject is infected with influenza.
  • the processing device 100 outputs the determined result and notifies the subject, user, doctor, etc. of the result.
  • the tip of the photographing device 200 is inserted into the oral cavity of the subject to photograph the inside of the oral cavity, particularly the pharynx. The specific processing will be described later.
  • the photographed subject image is transmitted to the processing device 100 via a wired or wireless network.
  • the processing system 1 can further include a mounting table 400 if necessary.
  • the mounting table 400 is capable of stably mounting the imaging device 200. Moreover, by connecting the mounting table 400 to a power source via a wired cable, it is possible to supply power to the photographing apparatus 200 from the power supply terminal of the mounting table 400 through the power supply port of the photographing apparatus 200.
  • FIG. 3B is a top view showing the configuration of the imaging device 200 according to an embodiment of the present disclosure. Hereinafter, the specific configuration of the imaging device 200 will be described with reference to FIG. 3B.
  • the main body 201 includes a base end 225 and a distal end 222, and has a predetermined length in a direction substantially parallel to the direction in which light is irradiated from the light source 212, that is, the direction H in which it is inserted into the oral cavity. It is composed of columns. Then, at least the tip 222 of the main body 201 is inserted into the oral cavity.
  • the main body 201 is formed into a hollow cylindrical columnar shape whose cross section is a perfect circle.
  • the wall portion 224 may be made of any material as long as it is capable of guiding light into its interior, and can be made of thermoplastic resin, for example.
  • Thermoplastic resins include polyolefin resins such as chain polyolefin resins (polypropylene resins, etc.), cyclic polyolefin resins (norbornene resins, etc.), cellulose ester resins such as triacetylcellulose and diacetylcellulose, and polyesters. type resins, polycarbonate resins, (meth)acrylic resins, polystyrene resins, or mixtures and copolymers thereof. That is, the wall portion 224 of the main body 201 functions as a light guide for guiding the light emitted from the light source into the oral cavity or toward the diffuser plate.
  • the main body 201 Since the main body 201 is formed hollow, a housing space 223 is formed on the inner surface by the wall portion 224. The camera 211 is accommodated in this accommodation space 223 .
  • the main body 201 only needs to be formed into a columnar shape having an accommodation space 223. Therefore, the accommodation space 223 does not need to have a cylindrical shape with a perfect circle in cross section, but may have an elliptical or polygonal cross section. Further, the main body 201 does not necessarily have to be formed hollow inside.
  • the tip of the grip 202 is connected to the base end 225 of the main body 201.
  • the user holds the grip 202 and performs operations such as inserting and removing the photographing device 200.
  • the grip 202 is constituted by a columnar body having a predetermined length in a direction substantially parallel to the direction H of insertion into the oral cavity, that is, along the longitudinal direction of the main body 201, and extends in the same direction as the main body 201 in the direction H. placed on the line.
  • the cross section in the vertical direction is formed to have a substantially elliptical shape, but it does not have to be an ellipse, and may be a perfect circle, an ellipse, or a polygon.
  • the grip 202 has a connecting portion 230 formed at a position closest to the base end 225 of the main body 201, and is connected to the main body 201 via the connecting portion 230.
  • the outer periphery of the connecting portion 230 includes engagement protrusions 217 (217-1 to 217-4) for positioning the auxiliary tool 300 and a positioning protrusion 218.
  • the engagement protrusion 217 mutually engages with engagement protrusions 318 (318-1 to 318-4) provided on the auxiliary tool 300. Further, the positioning protrusion 218 is inserted into an insertion hole 330 provided in the auxiliary tool 300 to position the imaging device 200 and the auxiliary tool 300 relative to each other.
  • the engagement protrusions 217 of the main body 201 have a total of four engagement protrusions (engagement protrusions 217-1 to 217-4) on the surface of the grip 202 and on the base of the main body 201. They are arranged at equal intervals near the end 225. Further, one positioning protrusion 218 is arranged between the engagement protrusions 217 on the surface of the grip 202 and near the base end 225 of the main body 201.
  • the present invention is not limited to this, and only one of the engaging protrusion 217 and the positioning protrusion 218 may be disposed.
  • the number of engagement protrusions 217 and positioning protrusions 218 may be any number as long as the number is one or more.
  • the grip 202 includes a photographing button 220 on its upper surface at a position close to the base end 225 of the main body 201, that is, near the tip of the grip 202 in the insertion direction H into the oral cavity. Thereby, when the user 600 holds it, the user 600 can easily press the shooting button 220 with his/her index finger or the like. Further, the grip 202 has a power button 221 disposed on its upper surface at a position close to the display 203, that is, at a position on the opposite side of the grip 202 from the photographing button 220. This makes it possible to prevent the user 600 from accidentally pressing the power button 221 while holding the camera to take a picture.
  • the display 203 has an approximately rectangular parallelepiped shape as a whole, and is arranged on the same straight line as the main body 201 in the direction H. Further, the display 203 includes a display panel on a surface opposite to the direction H of insertion into the oral cavity (that is, the direction toward the user). Therefore, the display 203 is formed such that the surface including the display panel is substantially perpendicular to the longitudinal direction of the main body 201 and the grip 202, which are formed substantially parallel to the direction H of insertion into the oral cavity. Ru.
  • the grip 202 is connected to the grip 202 on the side opposite to the oral cavity of the grip 202 on the surface facing the surface including the display panel. Note that the shape of the display is not limited to a substantially rectangular parallelepiped shape, and may be any shape such as a cylindrical shape.
  • the imaging device 200 can be placed vertically so that the surface including the display panel is in contact with the placement surface. Therefore, at least the outer periphery of the surface of the display 203 including the display panel is formed on a substantially flat surface suitable for placement.
  • the diffusion plate 219 is arranged at the tip 222 of the main body 201 and diffuses the light emitted from the light source 212 and passed through the main body 201 toward the inside of the oral cavity.
  • the diffuser plate 219 has a shape corresponding to the cross-sectional shape of a portion of the main body 201 configured to be able to guide light.
  • the main body 201 is formed into a hollow cylindrical shape. Therefore, the cross section of the diffusion plate 219 is also formed into a hollow shape corresponding to its shape.
  • the camera 211 is used to detect reflected light that is diffused from the diffuser plate 219, irradiated into the oral cavity, and reflected on the subject, and generates a subject image.
  • the camera 211 is arranged on the inner surface of the wall 224 of the main body 201, that is, in the accommodation space 223 formed inside the main body 201, so as to be on the same straight line as the main body 201 in the direction H. Note that in this embodiment, only one camera 211 is described, but the photographing device 200 may include a plurality of cameras. By generating a subject image using a plurality of cameras, the subject image includes information regarding the three-dimensional shape.
  • the camera 211 is arranged in the accommodation space 223 of the main body 201, but the camera 211 may be located at the tip 222 of the main body 201 or the main body 201 (inside the main body 201 or on the outer periphery of the main body 201). may be placed in
  • FIG. 4 is a perspective view showing the configuration of auxiliary tool 300 according to an embodiment of the present disclosure.
  • the auxiliary tool 300 is a tool for assisting in photographing the subject's oral cavity. Therefore, when photographing the inside of the oral cavity with the photographing device 200, it is not absolutely necessary, and may not be used depending on the user's or subject's wishes. At least a portion of the distal end side of the imaging device 200 is inserted into the auxiliary tool 300. Therefore, it is preferable that at least a portion of the auxiliary tool 300 has translucency from the viewpoint of ensuring a good field of view without interfering with the imaging device 200.
  • the auxiliary tool 300 is manufactured by integral molding of resin. However, it may be manufactured from other materials such as paper, cloth, metal, or combinations thereof. Further, the auxiliary tool 300 is preferably of a disposable type, but may be of a reusable type.
  • An example of such a resin is a thermoplastic resin.
  • Thermoplastic resins include polyolefin resins such as chain polyolefin resins (polypropylene resins, etc.), cyclic polyolefin resins (norbornene resins, etc.), cellulose ester resins such as triacetylcellulose and diacetylcellulose, and polyesters.
  • the resins used include polycarbonate resins, (meth)acrylic resins, polystyrene resins, vinyl resins, nylon resins, preurethane, fluorine resins, and mixtures and copolymers thereof.
  • the auxiliary tool 300 it is preferable to configure the auxiliary tool 300 to be easily deformed depending on the selection of material or the thickness during processing. With this configuration, it can be easily disposed of, such as when the auxiliary tool 300 is made disposable as described above.
  • the auxiliary tool 300 includes a main body 312 formed in a cylindrical shape, a pair of grip plates 311 disposed at the base end 316 of the main body 312, and a pair of grip plates 311 disposed near the distal end 314 of the main body 312.
  • a tongue depressor 315 is included.
  • the main body 312 is configured to cover at least a part of the distal end 222 side of the main body 201 of the photographing device 200 inside thereof, so that the auxiliary tool 300 can be inserted into the oral cavity according to the length of the main body 201. It is formed into a cylindrical shape having a predetermined length along the direction H, which is the direction in which it is directed.
  • An opening 320 for inserting the photographing device 200 is provided on the proximal end 316 side, and a cover 313 is provided on the distal end 314 side for allowing irradiation light from the light source 212 of the photographing device 200 and reflected light from the subject to pass through.
  • the auxiliary tool 300 is inserted into the oral cavity from the tip 314.
  • the main body 201 of the imaging device 200 has a substantially constant inner diameter and outer diameter from the base end 225 to the distal end 222. Therefore, the main body 312 of the auxiliary tool 300 is also formed to have an inner diameter and an outer diameter substantially constant in the longitudinal direction in accordance with this shape.
  • the cross-sectional shape of the main body 312 is preferably formed to correspond to the cross-sectional shape of the main body 201 of the imaging device 200, but it may have any shape as long as it can be inserted, and may be a perfect circle, an ellipse, a polygon, etc. It may be of any shape.
  • the pair of gripping plates 311 are arranged along the proximal end 316 of the main body 312 in a direction perpendicular or substantially perpendicular to the direction in which the auxiliary tool 300 is inserted into the oral cavity, that is, the direction H, on the outside of the main body 312. It is configured to extend towards. That is, the grip plate 311 having this configuration is used to be held by the user's hand when inserting the auxiliary tool 300 into the oral cavity of the subject. In this embodiment, when the auxiliary tool 300 is inserted into the oral cavity, the gripping plate 311 prevents further insertion of the auxiliary tool 300 by having its distal end surface contact the lips of the subject. It also functions as a regulating member to prevent aspiration.
  • the grip plate 311 is configured to extend outward, it is possible to prevent the auxiliary tool 300 itself from rolling on the floor or the like.
  • the pair of gripping plates 311 are vertically symmetrically arranged on the base end 316 side of the main body 312, but they are arranged in a donut shape along the base end 316 of the main body 312. It may be formed in any shape.
  • the tongue depressor 315 is arranged at the lower part of the main body 312 (on the side toward the tongue in the oral cavity) and is formed on a blade toward the tongue.
  • the subject's tongue moves in front of the photographing device 200, which obstructs the photographing of the oral cavity.
  • the tongue depressor 315 pushes the tongue downward to restrict movement of the tongue in the oral cavity and prevent the tongue from being located in front of the imaging device 200. Therefore, in this embodiment, the tongue depressor 315 is formed into a blade shape, but it may have any shape as long as it can realize this function.
  • FIG. 5 is a side view schematically showing a side configuration of an auxiliary tool 300 according to an embodiment of the present disclosure.
  • the auxiliary tool 300 includes the tongue depressor 315 near the distal end 314 side of the main body 312 and the grip plate 311 on the proximal end 316 side.
  • the main body 312 has a pair of grooves 319 formed with a predetermined length in a direction perpendicular to the outer periphery of the main body 312, and a piece 317 formed by these grooves and a pair of grooves 319 arranged in the piece 317, respectively. It has an engaging protrusion 318 configured to engage with each engaging protrusion 217 arranged at the tip of the grip 202 of the device 200, and an insertion hole 330 into which the positioning protrusion 218 of the grip 202 is inserted.
  • the engagement protrusions 318 are provided at positions corresponding to the respective engagement protrusions 217 arranged on the grip 202 of the photographing device 200, and protrude toward the inner surface of the main body 312. Therefore, in this embodiment, four engaging protrusions 318-1 to 318-4 are arranged at positions corresponding to four engaging protrusions 217-1 to 217-4. Further, the insertion hole 330 is provided at a position corresponding to the positioning protrusion 218 arranged on the grip 202 of the photographing device 200. Therefore, in this embodiment, one insertion hole 330 is arranged at a position corresponding to one positioning protrusion 218.
  • FIG. 6 is a schematic diagram showing the usage state of the imaging device 200 and the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 6 a case where the imaging device 200 is inserted into the auxiliary tool 300 will be described with reference to FIG. 6.
  • the imaging device 200 is inserted into the proximal end 316 through the opening 320 of the auxiliary tool 300 and reaches the vicinity of the distal end 314, the engaging protrusion 217 formed to protrude outward from the grip 202 of the imaging device 200, An engaging protrusion 318 formed toward the inner surface of the main body 312 of the auxiliary tool 300 comes into contact with it.
  • the engagement protrusions 318-1 to 318-4 of the main body 312 are the pieces 317-1 formed by the pair of grooves 319-1a and 319-1b to 319-4a and 319-4b. It is formed at ⁇ 317-4. Therefore, when a force is further applied in the direction of inserting the photographing device 200 while the engaging protrusion 217 of the photographing device 200 and the engaging protrusion 318 of the auxiliary tool 300 are in contact with each other, the piece 317 formed by the pair of grooves 319 be lifted up. As a result, the engagement protrusion 217 of the photographing device 200 is further inserted beyond the engagement protrusion 318 of the auxiliary tool 300.
  • the positioning projection 218 provided on the grip 202 of the photographing device 200 so as to protrude outward is inserted into the insertion hole 330 of the auxiliary tool 300. inserted into. Then, the positioning protrusion 218 of the photographing device 200 comes into contact with the wall surface of the insertion hole 330 formed on the distal end 314 side. This restricts the imaging device 200 from being inserted any further in the direction of the distal end 314 of the auxiliary tool 300.
  • the movement of the imaging device 200 in the direction in which the imaging device 200 is inserted is regulated by the positioning protrusion 218 and the insertion hole 330.
  • the movement of the photographing device 200 in the opposite direction, that is, in the direction in which the photographing device 200 is removed, is regulated by the engaging protrusion 217 and the engaging protrusion 318.
  • Such positioning protrusions 218 and insertion holes 330 are preferably installed at one location or asymmetrically in the circumferential direction of the photographing device 200 and the auxiliary tool 300 when they are installed at a plurality of locations.
  • the vertical direction of the photographing device 200 and the vertical direction of the auxiliary tool 300 can be kept constant; for example, the tongue depressor 315 is installed so as to be always positioned below the display 203 of the photographing device 200. becomes possible.
  • FIG. 7 is a schematic diagram showing how the imaging device 200 and the auxiliary tool 300 are attached according to an embodiment of the present disclosure.
  • FIG. 7 is an enlarged view showing the vicinity of the proximal end 316 of the auxiliary tool 300 and the vicinity of the connecting portion 230 of the imaging device 200 when the imaging device 200 is inserted into the auxiliary tool 300.
  • a notification body 226 (not shown in FIG. 6 etc.) is included on the upper surface of the connecting portion 230 of the photographing device 200.
  • An example of such a notification object 226 is a position or a light emitting object such as a plurality of LEDs.
  • the notification body 226 emits light when the power button 221 of the photographing device 200 is pressed to turn on the power of the photographing device 200, and stops emitting light when the power button 221 is pressed again to turn off the power.
  • the notification body 226 is placed on the top surface of the connecting portion 230, but the notification body 226 may be placed anywhere as long as it is covered by the auxiliary tool 300.
  • the auxiliary tool 300 into which the photographing device 200 having the notification body 226 is inserted includes a notification window 322 near the grip plate 311 on the base end 316 side.
  • the notification window 322 may be configured as a through hole that penetrates the auxiliary tool 300 in the thickness direction, and may be made of a material that has high transmittance of light emitted from the notification body 226 to the surrounding area. It may be configured by Conversely, in the auxiliary device 300, the area excluding the notification window 322 and the cover 313 (FIG. 4), that is, at least the area around the notification window 322, is made of a material that does not transmit light, or is made of a material that does not transmit light.
  • the notification body 226 may also be made of a material with low transmittance to inhibit transmission of at least part of the light from the notification body 226.
  • the notification body 226 and the notification window 322 are They are located one above the other. That is, in such a state, the notification window 322 of the auxiliary tool 300 is arranged at a position opposite to the arrangement position of the notification body 226 of the photographing device 200, so that the light emitted from the notification body 226 is transmitted through the notification window 322. It becomes possible to visually recognize it. This allows the user to visually confirm that the auxiliary tool is attached to the photographing device 200.
  • the notification body 226 is composed of an LED.
  • the notification body 226 only needs to be able to notify that the photographing device 200 has been inserted into the auxiliary tool 300 via the notification window 322. That is, the notification body 226 can be simply formed by a colored part, or can be formed by characters, patterns, or the like.
  • FIG. 8A is a schematic diagram showing the front configuration of an auxiliary tool 300 according to an embodiment of the present disclosure. Specifically, FIG. 8A is a diagram for explaining the structure of the auxiliary tool 300 and the relationship between the angle of view of the imaging device 200 and the cover frame of the auxiliary tool 300 when the auxiliary tool 300 is viewed from the front. be.
  • the auxiliary device 300 has a proximal end 316, which is an end opposite to the direction in which the auxiliary device 300 is inserted into the oral cavity, extending outward from the main body 312 perpendicularly or substantially perpendicularly to the direction. It includes a pair of gripping plates 311 (gripping plate 311a and gripping plate 311b) extending in the direction.
  • the grip plate 311 may include a through hole 323 (through hole 323a and through hole 323b) extending in its thickness direction, that is, in the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • the through hole 323 is formed in a shape that follows the outer shape of the grip plate 311, but is not limited to this shape.
  • it may be formed by one or more small holes, or may be formed by other shapes.
  • the auxiliary tool 300 also includes a cover 313 through which light detected by the imaging device 200 can pass, at a tip 314 that is the end in the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • a cover 313 is formed to follow the cross-sectional shape of the main body 312 in a direction perpendicular to the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • the shape is naturally not limited to a shape that follows the cross-sectional shape of the main body 312. Any shape may be used as long as it does not excessively obstruct photographing of a subject image by the photographing device 200.
  • the auxiliary tool 300 includes a cover frame that is arranged around the cover 313 and connects the main body 312 and the cover 313 in order to arrange the cover 313 at the end in the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • the shape of the cover frame on the side in contact with the main body 312 is formed to follow the cross section of the main body 312, and the shape on the side in contact with the cover 313 is formed in a shape along the outer shape of the cover 313.
  • Such a cover frame 321 does not necessarily need to be formed as a clearly distinguishable component from the main body 312 or the cover 313, but may be formed as a part of the main body 312 in an area that contacts the cover 313, or as a part of the cover 313. It may also refer to a region in contact with the main body 312.
  • the cover frame 321 has at least a portion thereof a reflection area that is reflected within the angle of view photographed by the photographing device 200 when the photographing device 200 is inserted and positioned with respect to the auxiliary tool 300.
  • a reflection area that is reflected within the angle of view photographed by the photographing device 200 when the photographing device 200 is inserted and positioned with respect to the auxiliary tool 300.
  • four reflection areas ie, reflection areas 321a to 321d
  • the reflection areas 321a to 321d are formed so as to correspond to the four corners of the angle of view of a rectangle.
  • the reflection areas 321a to 321d are formed at four locations in the example of FIG. 8A, they are of course not limited to this, and may be formed at only one location or at multiple locations. Good too.
  • FIG. 8B is a schematic diagram showing a partial cross-sectional configuration of the distal end 314 of the auxiliary tool 300 according to an embodiment of the present disclosure.
  • FIG. 8B is a diagram schematically showing a longitudinal cross section near the reflection area 321a shown in FIG. 8A.
  • the auxiliary tool 300 includes a main body 312 forming its outer shape, a cover 313 formed inside the main body 312 so as to follow the shape of the main body 312, and a cover frame connecting the main body 312 and the cover 313. 321.
  • the cover frame 321 is configured to protrude in the direction G toward the inside from the inner surface of the main body 312, for example.
  • the positional relationship is such that at least some of them are relative to each other. Therefore, when a subject image is photographed by the photographing device 200, the opposing area of the cover frame 321 will be reflected within the angle of view as a reflection area 321a.
  • the cover frame 321 may preferably be configured to protrude from the inner surface of the cover 313 along a direction perpendicular to the direction G. With this configuration, it is possible to prevent the tip of the imaging device 200 from coming into direct contact with the cover 313.
  • the reflection areas 321a to 321d may be formed to have the same structure as the cover frame 321 other than the areas, as shown in (a). Also, as shown in (b) and (c), the reflection area 321a to reflection area 321d are at least one part of the inner surface or the outer surface of the cover frame 321 in the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • the portion may include a structure formed from a predetermined pattern.
  • the structure is composed of a plurality of grooves or convex patterns formed at predetermined intervals.
  • the structure is composed of a predetermined character string formed in a groove shape. Note that such a structure may be formed by any method such as a concave or convex pattern or a pattern printed on the surface.
  • the reflection area may be any area that can reflect light used for photographing, such as light emitted from the photographing device 200, and generate reflected light that can be detected by the sensor of the camera 211. Therefore, it is only necessary for any of the auxiliary tools 300 to have such an area, and the reflection area 321a to 321d may be physically separated from other areas or intentionally processed or molded. It does not need to be pre-formed.
  • FIG. 9 is a schematic diagram showing the front configuration of an auxiliary tool 300 according to an embodiment of the present disclosure. Specifically, FIG. 9 is a diagram for explaining the surface structure of the cover 313 when the auxiliary tool 300 is viewed from the front.
  • the auxiliary tool 300 includes a cover 313 formed to be in contact with the inside of the main body 312 via a cover frame 321 at a distal end 314 that is the end in the direction of insertion into the oral cavity.
  • the cover 313 is made of a material that can transmit the light emitted from the photographing device 200 into the oral cavity, and also transmits the light reflected by the subject in the direction of the photographing device 200.
  • the auxiliary tool 300 since the auxiliary tool 300 is inserted into the oral cavity so as to cover the photographing device 200, it is always affected by exhalation by the subject. That is, the surface of the cover 313 becomes cloudy due to breathing from the subject, and this clouding may adversely affect the photographing of the subject by the photographing device 200. Therefore, if necessary, an antifogging agent may be laminated on the outer surface or inner surface of the cover 313 in the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • the antifogging agent has a function of imparting antifogging properties by forming a coating layer on the outer surface or inner surface of the cover 313 and improving wettability by laminating the antifogging agent.
  • antifogging agents include, but are not limited to, antifogging agents made of silicon-based materials, and polymeric or low molecular hydrophilic materials such as surfactants.
  • Such an antifogging agent may be applied to the cover 313 in advance or may be applied afterwards. Moreover, not only the case where a liquid antifogging agent is applied, but also a sheet-like material on which an antifogging agent is laminated in advance may be laminated.
  • the auxiliary tool 300 including the cover 313 includes a transparent resin layer 327 made of thermoplastic resin or the like as a base material.
  • Such a light-transmitting resin layer 327 is preferably made of a cyclic olefin resin such as an amorphous cyclic olefin resin or an amorphous cyclic olefin resin among thermoplastic resins.
  • the cover 313 when the cover 313 is inserted into the oral cavity, as described above, it is affected by the subject's exhalation, and a smooth water film is formed on the antifogging agent or the surface of the cover 313, which causes rainbow patterns, etc. This may adversely affect shooting. Therefore, it is desirable that the boundary surface of the antifogging agent or the cover has irregularities at predetermined intervals or at random so that light is diffusely reflected.
  • a laminated coating layer 326 is formed on the cover 313 by applying an antifog agent to the surface of the base material of the transparent resin layer 327, and recesses are formed on the surface of the coating layer 326 at predetermined intervals or randomly. 325 may be provided.
  • the intervals between the respective recesses 325 are, on average, wider than the wavelength band of light detected by the imaging device 200 (for example, 830 nm or more, which is the wavelength band of red light), and more preferably wider than twice the wavelength band. It is. By configuring the recesses 325 at such intervals, it is possible to cause diffuse reflection of light and suppress the occurrence of interference patterns.
  • the thickness of the coating layer 326 can be adjusted based on the coherence length calculated from the wavelength band of light detected by the imaging device 200, and is preferably 10 ⁇ m or more, for example.
  • the coating layer 326 is formed on the outer surface of the light-transmitting resin layer 327 has been described, but such a coating layer 326 may be formed on the inner surface of the light-transmitting resin layer 327. good.
  • a case has been described in which the recesses 325 are formed in the coating layer 326, but the surface of the translucent resin layer 327 may be subjected to acid treatment or plasma treatment, or a pattern may be printed on the surface.
  • the recessed portion 325 may be directly formed in the light-transmitting resin layer 327 by the method described above.
  • the cover 313 is formed of the coating layer 326 and the transparent resin layer 327, but it may further include layers other than these layers.
  • a portion of the tip portion of the main body 312 is configured to protrude from the outer surface of the cover 313 in a direction J perpendicular to a direction G from the inner surface of the main body 312 toward the inside.
  • FIG. 10 is a schematic diagram showing a cross-sectional configuration of an imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 10 is a diagram schematically showing a process in which a subject image is generated in the photographing device 200, and also shows another example for suppressing the occurrence of interference patterns.
  • a total of four light sources 212-1 to 212-4 are arranged on a substrate 231 arranged at the tip end side of the grip 202.
  • the light sources 212 each include an LED, and each LED emits light having a predetermined frequency band toward the oral cavity.
  • the light emitted from the light source 212 enters the base end 225 of the main body 201 and is guided toward the diffuser plate 219 by the wall portion 224 of the main body 201.
  • the light reaching the diffusion plate 219 is diffused into the oral cavity by the diffusion plate 219.
  • the light diffused by the diffusion plate 219 is reflected on the subject, such as the pharynx 715. When this reflected light reaches the camera 211, a subject image is generated.
  • the wall portion 224 of the main body 201 has the function of guiding the light emitted from the light sources 212-1 to 212-4 to the diffuser plate 219 as described above, but a portion or an end thereof has the function of guiding the light emitted from the light sources 212-1 to 212-4 to the diffuser plate 219.
  • a plate 233 may also be included.
  • the sensor of the camera 211 is arranged in the housing space 223 formed by the wall 224 of the main body 201, the photographing device 200 may also include a second polarizing plate 234 closer to the subject than the sensor. good.
  • the first polarizing plate 233 and the second polarizing plate 234 are arranged with their polarization axes perpendicular to each other at 90°.
  • FIG. 11 is a schematic diagram showing the configuration of the top surface of an auxiliary tool 300 according to an embodiment of the present disclosure. Specifically, FIG. 11 is an enlarged view of the vicinity of the proximal end 316 of the auxiliary tool 300, schematically showing another example of the structure of the auxiliary tool 300.
  • the auxiliary tool 300 may include a positioning mechanism 329 that can be deformed or separated from the main body 312 by applying a load in a predetermined direction.
  • the positioning mechanism 329 includes a grip plate 311 configured to extend toward the outside of the main body 312 in a direction perpendicular or substantially perpendicular to the direction in which the auxiliary tool 300 is inserted into the oral cavity, and the imaging device 200. It includes a positioning piece 331 for positioning the auxiliary tool 300, and a connecting piece 328 (connecting piece 328a to connecting piece 328d) for connecting to the main body 312.
  • the connecting piece 328 has one end connected to the main body portion of the positioning mechanism 329 and the other end connected to the main body 312, thereby connecting the two.
  • the connecting piece 328 in the cross section of the longitudinal direction, has a notch 333a and a notch 333b formed in a groove shape along the short direction, and at least a part of the connecting piece 328 in the thickness direction. It includes a thin region 332 formed thin. Therefore, the connecting piece 328 is configured to be easily deformed or easily cut when a load is applied in a predetermined direction.
  • FIG. 12 is a schematic diagram showing the configuration of the positioning mechanism 329 of the auxiliary tool 300 according to an embodiment of the present disclosure. Specifically, FIG. 12 is a diagram for explaining in more detail the structure and usage method of the positioning mechanism 329 shown in FIG. 11.
  • the positioning piece 331 of the positioning mechanism 329 includes an inclined surface 331a and a recess 331b that are inclined from the end toward the inside thereof.
  • the protrusion (not shown) formed on the upper surface of the connecting portion 230 of the imaging device 200 is inserted while contacting the inclined surface 331a, so that the positioning mechanism 329 rises upwards, and by further inserting the photographing device 200, the convex portion of the photographing device 200 finally fits into the recess 331b of the positioning piece 331, so that the auxiliary tool 300 and the photographing device 200 are mutually connected. Positioned.
  • the protrusion on the photographing device 200 side and the recess 331b of the positioning piece 331 fit together, so that the auxiliary tool 300 can be removed from the photographing device 200. becomes difficult. Therefore, the user applies a load to the positioning mechanism 329 by pushing the grip plate 311 of the positioning mechanism 329 in the direction F. Then, the connecting pieces 328a to 328d in which the notches 333a and 333b and the thin area 332 are formed are deformed or cut, and the positioning mechanism 329 connected to the main body 312 rises upward. The fitted state between the protrusion on the imaging device 200 side and the recess 331b of the positioning piece 331 is released.
  • FIG. 12 shows a state in which each connecting piece 328 is cut and the positioning mechanism 329 is separated from the main body 312 by applying a load to the positioning mechanism 329.
  • the positioning mechanism 329 including the positioning piece 331 has already been separated, so the imaging device 200 is inserted into the auxiliary tool 300. Unable to position 200. Therefore, the user cannot attach the auxiliary tool 300 to the photographing device 200, and it is possible to prevent the photographing device 200 from being reinserted into the auxiliary tool 300 once inserted.
  • FIG. 13 is a schematic diagram showing the configuration of the plate 334 of the auxiliary tool 300 according to an embodiment of the present disclosure. Specifically, in FIG. 13, (a) shows a front view of the auxiliary tool 300, and (b) shows a side view of the auxiliary tool 300.
  • the auxiliary tool 300 can include a plate 334 along the outer periphery of the main body 312. By installing the plate 334 on the outer periphery of the main body 312, if the auxiliary tool 300 and the photographing device 200 are inserted more than necessary, the plate 334 will come into contact with the teeth or lips, and the auxiliary tool 300 or the imaging device 200 will be placed in the back of the throat excessively. It is possible to prevent the photographing device 200 from being inserted.
  • the plate 334 is formed in an annular shape along the outer periphery of the main body 312.
  • the plate 300 is installed on the proximal end 316 side of the auxiliary tool 300 at a position corresponding to the distance from the tip of the tongue depressor 315 to the subject's lips or incisors.
  • the plate 334 is arranged to protrude from the main body 312 toward the outer circumference in a direction perpendicular or substantially perpendicular to the direction in which the auxiliary tool 300 is inserted into the oral cavity.
  • it is desirable that the plate 334 has a height from the main body 312 in the outer circumferential direction that corresponds to the size of the subject's mouth when the subject opens his or her mouth.
  • the shape of the plate 334 is just one example, and it is sufficient that at least a portion thereof is along the outer periphery of the main body 312, and the plate 334 does not necessarily need to be formed in an annular shape. Furthermore, in such a case, the number of plates 334 does not need to be just one along the outer periphery of the main body 312, and a plurality of plates 334 may be installed.
  • the plate 334 may include one or more through holes 335a to 335d. As an example, it is formed to penetrate in the thickness direction along the outer shape of the plate 334, but of course it is not limited to this shape. For example, it may be formed by one or more small holes, or may be formed by other shapes. Further, in the example of FIG. 13, four through holes 335a to 335d are illustrated as the through holes, but of course the number and arrangement position are not limited to this. For example, small holes may be placed throughout, or one large hole may be placed at one location.
  • the plate 334 is integrally molded in advance when manufacturing the auxiliary tool 300.
  • the present invention is not limited to this, and the plate 334 may be formed in an annular shape (doughnut shape) and configured to be detachable from the auxiliary tool 300.
  • the auxiliary tool 300 is configured such that the diameter gradually becomes narrower from the base end 316 toward the distal end 314. Therefore, by preparing a plurality of plates 334 with different inner diameters R, the plates 334 can be installed at positions according to the depth of the subject's oral cavity, the age of the subject, the size of the subject's mouth, etc. becomes possible.
  • FIG. 14 is a block diagram showing the configuration of the photographing device 200 according to an embodiment of the present disclosure.
  • the photographing device 200 includes a camera 211, a light source 212, a processor 213, a memory 214, a display panel 215, an input interface 210, and a communication interface 216. Each of these components is electrically connected to each other via control lines and data lines. Note that the photographing device 200 does not need to include all of the components shown in FIG. 14, and can be configured by omitting some of them, or can include other components.
  • the photographing device 200 can include a battery or the like for driving each component.
  • the camera 211 functions as a photographing unit that detects reflected light reflected from the oral cavity, which is the subject, and generates a subject image.
  • the camera 211 includes, for example, a CMOS image sensor to detect the light, and a lens system and a drive system to realize a desired function.
  • the image sensor is not limited to a CMOS image sensor, but other sensors such as a CCD image sensor can also be used. Further, it is also possible to additionally use a photographing element depending on the band of reflected light to be detected.
  • CMOS image sensor that is a photographing element that detects wavelengths in a near-infrared light band from wavelengths in a visible light band
  • a sensor that is an infrared light photographing element that detects wavelengths in an infrared light band.
  • the camera 211 may be arranged adjacent to the camera 211, but may have an autofocus function, and is preferably set to focus on a specific area in front of the lens, for example. . Further, the camera 211 may have a zoom function, and is preferably set to take images at an appropriate magnification depending on the size of the pharynx or influenza follicle.
  • lymphoid follicles that appear in the deepest part of the pharynx located in the oral cavity have a pattern unique to influenza. Lymphoid follicles with this unique pattern are called influenza follicles, which are a characteristic sign of influenza and appear about two hours after the onset of symptoms.
  • influenza follicles which are a characteristic sign of influenza and appear about two hours after the onset of symptoms.
  • the processing system 1 of the present embodiment is used to determine the possibility of a subject suffering from influenza by, for example, photographing the pharynx of the oral cavity and detecting the follicles. Therefore, when the imaging device 200 is inserted into the oral cavity, the distance between the camera 211 and the subject becomes relatively short.
  • the camera 211 preferably has an angle of view (2 ⁇ ) such that the value calculated by [(distance from the tip of the camera 211 to the posterior wall of the pharynx)*tan ⁇ ] is 20 mm or more vertically and 40 mm or more horizontally.
  • 2 ⁇ the value calculated by [(distance from the tip of the camera 211 to the posterior wall of the pharynx)*tan ⁇ ] is 20 mm or more vertically and 40 mm or more horizontally.
  • the light source 212 is driven by an instruction from the processing device 100 or the imaging device 200, and functions as a light source section for irradiating light into the oral cavity.
  • Light source 212 includes one or more light sources 212.
  • the light source 212 includes one or more LEDs, and each LED emits light having a predetermined frequency band toward the oral cavity.
  • the light source 212 uses light having a desired band among an ultraviolet light band, a visible light band, and an infrared light band, or a combination thereof. When emitting light in a plurality of bands, a plurality of LEDs preset to emit light in each band are switched and displayed.
  • the processor 213 functions as a control unit that controls other components of the imaging device 200 based on a program stored in the memory 214.
  • the processor 213 controls the driving of the camera 211 and the light source 212 based on a program stored in the memory 214, and also controls the storage of the subject image photographed by the camera 211 in the memory 214.
  • the processor 213 performs a process of starting photographing a subject image by accepting an operation input from a user, and includes at least a portion of the cover frame 321 of the auxiliary tool 300 in the subject image based on the photographed subject image. is included, and if it is not included as a result of the determination, processing for outputting information indicating that the photographing device 200 is not inserted into the auxiliary tool 300, etc. are executed.
  • the processor 213 is mainly composed of one or more CPUs, but may be combined with other processors as appropriate.
  • the memory 214 is composed of RAM, ROM, nonvolatile memory, HDD, etc., and functions as a storage unit.
  • the memory 214 stores instructions for various controls of the imaging device 200 as programs. Specifically, the memory 214 performs a process of starting photographing of a subject image by accepting an operation input from a user, and includes a process of starting photographing of a subject image based on a photographed subject image, and a process of starting photographing of a subject image based on the photographed subject image.
  • the display panel 215 is provided on the display 203 and functions as a display section for displaying the subject image photographed by the photographing device 200 and information indicating that the photographing device 200 is not inserted into the auxiliary tool 300.
  • the display panel 215 is composed of a liquid crystal panel, but is not limited to a liquid crystal panel, and may be composed of an organic EL display, a plasma display, or the like.
  • the input interface 210 functions as an input unit that accepts the subject's instruction input to the processing device 100 and the imaging device 200.
  • Examples of the input interface 210 include a “shooting button” for instructing the shooting device 200 to start and end recording, a “power button” for turning on and off the power of the shooting device 200, and a “power button” for making various selections.
  • buttons and keys may be physically prepared, or may be displayed as icons on the display panel 215, and may be a touch panel or the like that is superimposed on the display panel 215 and arranged as the input interface 210. It may also be possible to make the selection possible.
  • the detection method of the subject's instruction input using the touch panel may be any method such as a capacitance method or a resistive film method.
  • the communication interface 216 functions as a communication unit for transmitting and receiving information to and from the processing device 100 and/or other devices.
  • Examples of the communication interface 216 include wired communication connectors such as USB and SCSI, wireless communication transmitting and receiving devices such as wireless LAN, Bluetooth (registered trademark), and infrared rays, and various connection terminals for printed mounting boards and flexible mounting boards. There are various things that can be mentioned.
  • FIG. 15 is a diagram showing a processing flow executed in the imaging device 200 according to an embodiment of the present disclosure.
  • the processing flow is mainly performed by the processor 213 of the photographing device 200 reading and executing a program stored in the memory 214.
  • the processor 213 determines whether an operation input by the user is accepted via the input interface 210 (for example, the power button) (S211). Note that at this time, if the processor 213 determines that the input by the user is not accepted, the processing flow ends.
  • the processor 213 determines that the user's input has been accepted, it outputs a standby screen to the display panel 215 (S212).
  • the standby screen (not shown) includes a through image photographed via the camera 211.
  • the processor 213 receives the user's operation input through the input interface 210, and receives the selection of information specifying the subject whose intraoral image is to be photographed (S213).
  • the processor 213 outputs the standby screen to the display panel 215 again (S214).
  • the user covers the tip of the imaging device 200 with the auxiliary tool 300 and inserts the imaging device 200 into the subject's oral cavity to a predetermined position.
  • the processor 213 determines whether the auxiliary tool 300 is attached to the photographing device 200 based on the subject image (through image) photographed by the camera 211 (S215). The determination is performed, for example, by inputting a photographed subject image to a trained assistive device attachment determination model stored in the memory 214. Note that the use of a trained assistive device attachment determination model in this determination is just one example, and rule-based image analysis processing is used to determine whether at least a part of the cover frame is included in the subject image, and It may be determined whether the tool 300 is attached to the photographing device 200 or not.
  • the processor 213 of the imaging device 200 does not need to execute the process. That is, the processing related to the determination involves transmitting the subject image photographed by the photographing device 200 to a server device connected via a network, and performing image analysis processing based on a learned assistive device wearing determination model or a rule in the server device. The determination may be made by applying the subject image to the subject image, and the photographing device 200 may receive the result from the server device.
  • FIG. 16 is a diagram showing an example of a screen output by the imaging device 200 according to an embodiment of the present disclosure. Specifically, FIG. 16 is a diagram illustrating a processing flow related to generation of the learned assistive tool attachment determination model used in S215 of FIG. 15. The processing flow may be executed by the processor 213 of the imaging device 200, or may be executed by the processor of another processing device connected via communication.
  • the processor acquires a subject image as a learning determination image using the camera 211 of the photographing device 200 (S311). Next, the processor labels the learning determination image with a correct answer label based on a determination made by the user or the like as to whether or not the image includes at least a portion of the cover frame 321 of the auxiliary tool 300. (S312). Then, the processor stores the assigned correct label information in association with the learning determination image used to assign the correct label (S313).
  • the processor executes a step of performing machine learning of the attachment determination pattern of the auxiliary tool 300 using them (S314).
  • this machine learning method provides a set of information to a neural network that combines neurons, and learns while adjusting the parameters of each neuron so that the output from the neural network is the same as the correct label information. This is done by repeating.
  • a step of acquiring a trained assistive device attachment determination model is executed (S315).
  • the acquired auxiliary device attachment determination model is stored in the memory 214 of the photographing device 200 or in another processing device connected to the photographing device 200 via a wired or wireless network. In this way, by using the learned assistive device determination model, it is determined whether or not at least a part of the cover frame 321 of the assistive device 300 is reflected in the subject image photographed by the camera 211. It becomes possible to do so.
  • FIG. 17 is a diagram showing an example of a screen output by the imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 17 is a diagram showing an example of a subject image used for determination in S215 of FIG. 15.
  • the subject image photographed by the camera 211 of the photographing device 200 in addition to an image of the oral cavity that is the subject, there are also reflection areas 321a of the cover frame 321 reflected in the four corners of the subject image.
  • a region 321d is included. That is, the light emitted from the light source 212 of the photographing device 200 is reflected by the reflection area 321a to 321d of the cover frame 321, and is detected by the camera 211 of the photographing device 200.
  • the auxiliary tool 300 can be attached to the photographing device 200. It becomes possible to determine whether the device is attached or not.
  • the reflection areas 321a to 321d of the cover frame 321 can include structures having a predetermined pattern as necessary. For example, if the structure is the same as that of other areas of the cover frame 321 as shown in (a) of FIG. 8A, the predetermined pattern will not be drawn in the photographed image as shown in (a) of FIG. .
  • the cover frame 321 includes a structure formed of a predetermined pattern as shown in (b) or (c) of FIG. 8A, the structure shown in (b) or (c) of FIG. In addition to the cover frame 321, the structure is also drawn. By using such a structure, it becomes possible to determine the reflection of the cover frame 321 more accurately.
  • the reflection areas 321a to 321d included in the subject image are shown clearly separated from other areas.
  • the distances from the camera 211 are naturally different between the oral cavity that is the subject and the reflection areas 321a to 321d of the cover frame 321. Therefore, depending on the settings at the time of shooting, the reflection areas 321a to 321d may not be clearly divided and detected and output as shown in FIG. 17, but may be detected and output as blurred images. .
  • the processor 213 outputs a notification to the display of the display panel 215 indicating that the photographing device 200 is not inserted into the auxiliary device 300 ( S216).
  • FIG. 18 is a diagram showing an example of a screen output by the imaging device 200 according to an embodiment of the present disclosure.
  • FIG. 18 is a diagram showing an example of the notification output to the display of the display panel 215 in S216 of FIG. 15.
  • the message “No auxiliary device is attached. Please attach the auxiliary device to the tip of the photographing device” is taken.
  • a notification indicating that the device 200 is not inserted into the auxiliary tool 300 is output. By outputting such a notification, the user can reliably know whether the auxiliary tool 300 is not attached, and smoother photographing can be performed.
  • the notification may be output to the processing device 100 or other devices connected via communication, and displayed via these devices.
  • the photographing device 200 has an output section such as a speaker, notification may be made by voice via the output section.
  • notification may be made by vibration or light emission.
  • any notification may be used as long as it is a "notification indicating that the imaging device 200 is not inserted into the auxiliary device 300," and such a notification may be a notification indicating that the imaging device 200 has been inserted, or a notification prompting the insertion. It may be a notification like this.
  • the processor 213 accepts the user's operation to start photographing via the input interface 210 (for example, the photographing button). As a result, the processor 213 controls the camera 211 to start capturing an image of the subject (S217). This photographing of the subject image is carried out by pressing a photographing button and sequentially photographing a fixed number of images (for example, 30 images) at regular intervals. When the photographing of the subject image is completed, the processor 213 stores the photographed subject image in the memory 214 in association with the read subject ID information. Then, the processor 213 outputs the subject image stored in the memory 214 to the display panel 215 (S218).
  • the input interface 210 for example, the photographing button
  • the processor 213 controls the camera 211 to start capturing an image of the subject (S217). This photographing of the subject image is carried out by pressing a photographing button and sequentially photographing a fixed number of images (for example, 30 images) at regular intervals.
  • the processor 213 stores the photographed subject image in the memory
  • the user takes out the imaging device 200 along with the auxiliary tool 300 from the oral cavity, checks the subject image output on the display panel 215, and inputs an instruction for re-imaging if the desired image is not obtained. It is possible to do so. Therefore, the processor 213 determines whether or not an input of a re-imaging instruction from the user has been received via the input interface 210 (S219). If the processor 213 receives the input of the re-photographing instruction, the processor 213 displays the standby screen in S215 again and enables photographing of the subject image.
  • the processor 213 updates the memory via the communication interface 216.
  • the subject image stored in 214 and the subject ID information associated with the subject image are transmitted to the processing device 100 (S220). With the above, the processing flow ends.
  • the processor of the processing device 100 selects a judgment image to be used for judgment, and also selects the judgment image to be used for judgment.
  • the possibility of contracting a predetermined disease is determined using the following.
  • the results are then output to a display or the like.
  • this determination may be performed by rule-based image analysis processing, or a learned determination obtained by machine learning using a training subject image in which disease information such as influenza is associated as a correct label. The determination may be made using a model.
  • auxiliary device suitable for photographing the oral cavity of a subject, which assists the photographing, and a photographing device, program, and method for photographing the inside of the oral cavity using the auxiliary device. becomes.
  • the processes and procedures described herein can be implemented not only by what is explicitly described in the embodiments, but also by software, hardware, or a combination thereof. Specifically, the processes and procedures described in this specification can be realized by implementing logic corresponding to the processes in a medium such as an integrated circuit, volatile memory, nonvolatile memory, magnetic disk, or optical storage. be done. Further, the processes and procedures described in this specification can be implemented as a computer program and executed by various computers including processing devices and server devices.
  • Processing system 100 Processing device 200: Photographing device 201: Main body 202: Grip 203: Display 210: Input interface 211: Camera 212: Light source 212-1: Light source 213: Processor 214: Memory 215: Display panel 216: Communication interface 217: Engagement protrusion 218: Positioning protrusion 219: Diffusion plate 220: Shooting button 221: Power button 222: Tip 223: Accommodation space 224: Wall portion 225: Base end 226: Notification body 230: Connecting portion 231: Board 233: No.
  • polarizing plate 234 2nd polarizing plate 300 : Auxiliary tool 311 : Grip plate 312 : Main body 313 : Cover 314 : Tip 315 : Tongue depressor 316 : Base end 317 : Piece 318 : Engaging protrusion 319 : Groove 320 : Opening 321 : Cover frame 322: Notification window 323: Through hole 325: Recess 326: Coating layer 327: Transparent resin layer 328: Connecting piece 329: Positioning mechanism 330: Insertion hole 331: Positioning piece 331a: Inclined surface 331b: Recess 332: Thin area 333a: Notch 333b: Notch 400: Placement table 600: User 700: Target person

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PCT/JP2022/010014 2022-03-08 2022-03-08 補助具、撮影装置、プログラム及び方法 Ceased WO2023170788A1 (ja)

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PCT/JP2022/010014 WO2023170788A1 (ja) 2022-03-08 2022-03-08 補助具、撮影装置、プログラム及び方法
CN202280093303.5A CN118843419A (zh) 2022-03-08 2022-03-08 辅助工具、拍摄装置、程序及方法
EP22930773.1A EP4491093A4 (en) 2022-03-08 2022-03-08 ASSISTANCE TOOL, IMAGING DEVICE, PROGRAM AND PROCESS
JP2024505699A JP7819968B2 (ja) 2022-03-08 2022-03-08 補助具、撮影装置、プログラム及び方法
US18/823,997 US20250000353A1 (en) 2022-03-08 2024-09-04 Assistance Tool, Imaging Device, Program, And Method

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EP4491093A1 (en) 2025-01-15
CN118843419A (zh) 2024-10-25

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