JP2022108198A - Auxiliary tool for x-ray imaging and x-ray imaging system - Google Patents

Abstract

To provide an auxiliary tool for X-ray imaging and an X-ray imaging system which can easily determine a portion where an X-ray image is captured and easily grasp a portion where X-ray imaging is performed by using the auxiliary tool for X-ray imaging when the X-ray imaging is performed by using an imaging plate.SOLUTION: An auxiliary tool 3 for X-ray imaging comprises: a positioning unit 31 which positions an X-ray irradiation unit 22 of an X-ray source that generates an X-ray; a support arm 32 which extends in an X-ray irradiation direction from the positioning unit 31; and an X-ray imaging element support part 33 which is provided on a tip of the support arm 32, and detachably supports an X-ray imaging element 4 that acquires in an oral cavity C X-ray image information of the X-ray that is irradiated by the X-ray irradiation unit 22 and passes through a subject S. The X-ray imaging element support part 33 includes erroneous attachment prevention means 30 which prevents the reverse attachment of the front and back of the X-ray imaging element 4.SELECTED DRAWING: Figure 1

Description

The present invention relates to an X-ray imaging aid and an X-ray imaging system.

2. Description of the Related Art Conventionally, in the medical field such as dentistry, an X-ray imaging system is used to record an X-ray image of an affected area. An X-ray imaging system includes an X-ray recording device for recording an X-ray image on a memory foil and a reading device for reading the X-ray image on the memory foil (for example, Patent Documents 1 and 2 reference).

A memory foil (13) (X-ray receiving medium) is used for recording X-ray images in the system (1) described in Patent Documents 1 and 2 and in dental radiography in dentistry. The memory foil (13) is usually held at an appropriate location in the patient's oral cavity by a holding device, and irradiated with X-rays from outside the oral cavity by an X-ray irradiator to photograph one to three teeth at once. , the diagnosis is made by looking at the image of the memory foil (13).

JP 2019-533490 A Japanese Patent Application Laid-Open No. 2019-537457

However, in an X-ray imaging system using a memory foil (13) such as the system (1) described in Patent Documents 1 and 2 or an X-ray receiving medium (hereinafter referred to as "imaging plate"), imaging during X-ray imaging There is a problem that it is difficult to grasp which part is to be imaged depending on the orientation of the plate and the orientation of the imaging plate when the image is read.

Therefore, the present invention was invented to solve such a problem, and when an X-ray image is taken using an imaging plate, it is possible to easily determine which part of the X-ray image is taken. It is an object of the present invention to provide an X-ray imaging aid and an X-ray imaging system that can easily grasp a part that has been radiographed using the X-ray imaging aid.

In order to solve the above-described problems, an X-ray imaging aid according to the present invention includes an alignment unit for aligning an X-ray irradiation unit of an X-ray source that generates X-rays, and an X-ray from the alignment unit. a support arm extending in the radiation direction; and an X-ray provided at the tip of the support arm for obtaining X-ray image information in the oral cavity, which is irradiated by the X-ray irradiation unit and passed through the subject. and an X-ray imaging device support for detachably supporting an imaging device, wherein the X-ray imaging device support prevents the X-ray imaging device from being attached upside down. It is characterized by comprising an erroneous attachment prevention means for

Further, an X-ray imaging system according to the present invention is an X-ray imaging system comprising the X-ray imaging aid, the X-ray imaging device, an information reading device, and an information terminal, wherein the X-ray imaging The element has a wireless tag for storing orientation information from orientation detection means for detecting the orientation of the X-ray imaging aid, and an X-ray image information acquisition unit for acquiring the X-ray image information. The information reading device includes an information reading section for reading at least posture information stored in the wireless tag, an X-ray image information reading section for reading X-ray image information recorded in the X-ray imaging device, and an information reading unit, and an information communication unit configured to transmit posture information and X-ray image information read by the X-ray image information reading unit to the information terminal, wherein the information terminal reads the posture information and the X-ray image. At least one of the information reading device and the information terminal has an image information processing unit that associates the posture information with the X-ray image information.

Advantageous Effects of Invention The present invention makes it possible to easily determine which part of an X-ray image is taken when an X-ray image is taken using an imaging plate, and at the same time, the X-ray image is taken using an X-ray photography aid. It is possible to provide an X-ray imaging aid and an X-ray imaging system that allow easy recognition of a site.

1 is a block diagram showing an example of an X-ray imaging aid and an X-ray imaging system according to an embodiment of the present invention; FIG. It is an explanatory view showing an X-ray imaging aid. It is a figure which shows an example of the auxiliary tool for X-ray imaging which concerns on embodiment of this invention, and is explanatory drawing in the case of dentition analogy using three types of auxiliary tools for X-ray imaging. 1 is a schematic enlarged cross-sectional view showing an X-ray imaging element; FIG. Fig. 2 is a perspective view showing an X-ray imaging aid used for the maxillary right molar region and the mandibular left molar region. Fig. 2 is a perspective view showing an X-ray imaging aid used for the maxillary left molar region and the mandibular right molar region. FIG. 4 is an enlarged schematic cross-sectional view of a main part showing an installed state of the erroneous attachment prevention means; 1 is a schematic enlarged front view of an RFID antenna; FIG. 1 is a perspective view showing an X-ray imaging aid; FIG. FIG. 11 is a diagram showing a first modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, which is used when dentition analogy is performed using information on instruments used, posture information, and positioning means position information. 1 is a perspective view of an X-ray imaging aid used. Fig. 2 is a perspective view showing an X-ray imaging aid used for the maxillary left molar region and the mandibular right molar region. FIG. 10 is an explanatory diagram showing the state of the X-ray imaging aid when imaging the anterior teeth of the upper jaw; FIG. 10 is an explanatory view showing the state of the X-ray imaging aid when imaging the maxillary left premolar. FIG. 10 is an explanatory view showing the state of the X-ray imaging aid when imaging the maxillary left molar; FIG. 10 is a diagram showing a first modified example of the X-ray imaging aid according to the embodiment of the present invention, and is an explanatory diagram in the case of estimating the row of teeth using two types of X-ray imaging aids. FIG. 4 is an explanatory diagram showing the relationship between the used instruments and position information, and the alignment positions of the X-ray images. FIG. 10 is a view showing a second modified example of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, and is an enlarged schematic cross-sectional view of the main part showing the X-ray imaging element. FIG. 5 is a block diagram showing a second modified example of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention; FIG. 10 is a diagram showing another modified example of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, which is an X-ray imaging aid used for the maxillary left premolar and the mandibular right premolar. It is a perspective view showing the. FIG. 10 is a diagram showing another modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, and is an X-ray imaging aid used for the maxillary right premolar and the mandibular left premolar. It is a perspective view showing the.

Hereinafter, an X-ray imaging aid 3 and an X-ray imaging system 1 according to embodiments of the present invention will be described in detail with reference to FIGS. 1 to 9. FIG.
In this embodiment, in the X-ray imaging aid 3 shown in FIG. 2, the alignment part 31 side is directed forward, the X-ray imaging device support part 33 is directed rearward, and the alignment part 31 and the X-ray imaging device support are aligned. The side from which the portion 33 protrudes will be described as the upward direction.

≪X-ray imaging system≫
As shown in FIG. 1, an X-ray imaging system 1 is an imaging apparatus that performs X-ray imaging of an affected area of a patient using an X-ray imaging aid 3 on which an imaging plate IP (see FIG. 4) is mounted. A system used in dentistry will be described below as an example of the X-ray imaging system 1 . The X-ray imaging system 1 includes a dental X-ray 2, an X-ray imaging aid 3, an X-ray imaging element 4, a display device (not shown), an information reader 6, an information terminal 7, and an external database 8. and

≪Dental X-ray≫
As shown in FIG. 1, the dental X-ray 2 is an intraoral X-ray apparatus for X-raying teeth T in the oral cavity C of a patient (see FIG. 2 or 3). The dental X-ray 2 includes an X-ray tube 21 that generates X-rays, and an X-ray irradiation unit 22 that adjusts the irradiation field of X-rays and irradiates a subject S with X-rays. Note that the X-ray irradiation unit 22 includes an X-ray tube 21 serving as an X-ray source.

≪Auxiliary device for X-ray photography≫
The X-ray imaging aid 3 is a mounting tool for holding the imaging plate IP and detachably mounting it in the oral cavity C of the patient when performing X-ray imaging of the patient's tooth T as the subject S ( 2 and 3). The X-ray imaging aid 3 includes an erroneous attachment prevention means 30, an alignment section 31, a support arm 32, an X-ray imaging element support section 33, an orientation detection means 34, a wireless tag communication section 36, and a writing device. , a notification means 37 , an X-ray imaging device detection section 38 , and an X-ray irradiation detection means 39 .

As shown in FIG. 2, the X-ray imaging aid 3 includes an annular positioning portion 31 into which the X-ray irradiation portion 22 is inserted, and a support extending rearward from the lower end portion of the positioning portion 31. It mainly includes an arm 32 and an X-ray imaging element support portion 33 provided at the rear end of the support arm 32 . The X-ray imaging aid 3 shown in FIG. 2 is an anterior tooth X-ray imaging aid 3A (see FIG. 3). As shown in FIG. 3, the X-ray imaging aid 3 is designed to be easily inserted into the oral cavity according to the position of the affected area to be X-rayed by the dental X-ray 2. Auxiliary tool 3A (see FIG. 2), X-ray imaging auxiliary tool 3B for maxillary left and mandibular right molar teeth (see FIG. 5), and X-ray imaging auxiliary tool 3C for maxillary right molar tooth (see FIG. 6). It is composed of various types of X-ray imaging aids 3.

The alignment part 31 does not have to be inserted (or internally fitted) with the X-ray irradiation part 22, and is positioned so that at least the center of the annular ring of the alignment part 31 and the center of the X-ray irradiation part 22 are aligned. It is good if there is A case where the X-ray irradiation unit 22 is inserted into the alignment unit 31 will be described below.

As shown in FIG. 3, an anterior tooth X-ray imaging aid 3A is used for the maxillary anterior tooth Ta and the mandibular anterior tooth Tb. When photographing the maxillary anterior teeth Ta and the mandibular anterior teeth Tb, after photographing the maxillary anterior teeth with the anterior teeth X-ray imaging aid 3A, the anterior teeth X-ray imaging aid 3A is reversed to image the mandibular anterior teeth. An X-ray imaging aid 3B for maxillary left and mandibular right molars is used for the maxillary left molar Tc and the mandibular right molar Tf. For the maxillary right molar tooth Td and the mandibular left molar tooth Te, an X-ray imaging aid tool 3C for maxillary right molar tooth, which is a symmetrical shape of the radiographic aid tool 3B for maxillary left and mandibular right molar tooth, is used.
According to such a configuration, since there are three types of instrument information and two types of posture information (upper and lower), it is possible to determine which tooth T the image is for because it is possible to know which of the six image information is. become easier.

<Positioning part>
As shown in FIG. 2, the alignment part 31 is a alignment part for aligning the X-ray irradiation part 22 of the X-ray source that generates X-rays. The alignment part 31 is formed in, for example, a ring shape in which the cylindrical X-ray irradiation part 22 is fitted. The alignment unit 31 aligns the cylindrical X-ray irradiation unit 22 with the annular alignment unit 31 so that the X-ray imaging device 4 can be reliably irradiated with X-rays. .

<Support arm>
The support arm 32 is a portion extending from the positioning portion 31 to the X-ray imaging device support portion 33 in the X-ray irradiation direction. As the support arm 32, an X-ray imaging aid 3 having support arms 32A to 32C is used according to the position of the affected area to be X-rayed.

As shown in FIGS. 2, 3, 5, or 6, the support arm 32 includes an anterior teeth X-ray imaging aid 3A, an upper left and lower right molar X-ray imaging aid 3B, and an upper right and lower jaw. In the case of the left molar X-ray imaging aid 3C, support arms 32B and 32C extending in the front-rear direction are used so as to bend in the lateral direction when viewed from the front.

<X-ray imaging device support>
The X-ray imaging device support section 33 detachably holds the X-ray imaging device 4 for obtaining X-ray image information from the X-rays irradiated by the X-ray irradiation section 22 and passing through the subject S in the oral cavity C. is. As shown in FIG. 2 , the X-ray imaging device support section 33 is provided at the rear end of the support arm 32 . The X-ray imaging device support portion 33 has a substrate portion 33a, a front convex portion 33b, an elastic support piece 33c, and a rear projection piece 33d.
Here, the X-ray image information is information relating to X-rays accumulated (recorded) in the stimulable phosphor layer 42, which will be described later, and X-ray image information read by an X-ray image information reading section 62, which will be described later. An X-ray image.

The base plate portion 33 a is a rectangular plate-like portion arranged on the rear end portion of the support arm 32 .
The front convex portion 33b is a plate-like protrusion that protrudes upward from the front end of the substrate portion 33a.
The elastic support piece 33c is a support piece for supporting the X-ray imaging element 4. As shown in FIG. The elastic support piece 33c protrudes upward from a position closer to the rear side of the substrate portion 33a and has an elastic force that presses the front surface of the elastic support piece 33c.

The rear protruding piece 33d is a rectangular protruding piece that protrudes upward from the rear end of the substrate portion 33a. 1, posture detection means 34, wireless tag communication section 36, writing means 36a, X-ray imaging element detection section 38, and X-ray irradiation device 36a. Detecting means 39 and are embedded.

<Incorrect mounting prevention means>
The incorrect attachment prevention means 30 is a device for preventing the X-ray imaging device 4 from being attached upside down. The erroneous attachment prevention means 30 consists of a wireless tag communication section 36, which will be described later. The erroneous attachment prevention means 30 is such that when an X-ray image is captured using the imaging plate IP, the stimulable phosphor layer 42 side of the X-ray imaging device 4 faces the X-ray irradiation side (it is attached face up). ) can be confirmed. In other words, the erroneous attachment prevention means 30 prevents the wireless tag communication section 36 and the X-ray image sensor 4 when the photostimulable phosphor layer 42 side of the X-ray imaging device 4 is not facing the X-ray irradiation side (attached face down). Since communication cannot be performed with the wireless tag 45 provided in the imaging device 4, it is possible to determine that the X-ray imaging device 4 is facing backward.

As shown in FIGS. 7 to 9, the erroneous attachment prevention means 30 includes an RFID antenna 301 arranged in front of the X-ray imaging device support portion 33 of the X-ray imaging aid 3, and An electric control circuit board 302 is provided on the rear side and on which an acceleration sensor 303 and an X-ray detection sensor 304 are mounted.
7 to 9 show the case where the RFID antenna 301 is attached to the front side of the X-ray imaging aid 3 (X-ray imaging device support portion 33) as an example, but the RFID antenna 301 is , may be attached to the back side of the X-ray imaging aid 3.

The RFID antenna 301 is a transmitting/receiving device for receiving and transmitting radio waves for reading information from an RFID tag or the like, and is formed substantially like a substrate. The RFID antenna 301 is attached to the front side (front side) of the X-ray imaging device support portion 33 or embedded in the front side (front side) of the X-ray imaging device support portion 33 .

The acceleration sensor 303 is a sensor that detects the angle of the X-ray imaging aid 3, like the posture detection means 34 (see FIG. 1).
The X-ray detection sensor 304 is a sensor that detects X-ray irradiation from the X-ray irradiation unit 22, like the X-ray irradiation detection means 39 (see FIG. 1).

The electric control circuit board 302 is a circuit board for performing acceleration sensor control, RFID writer/reader control, and X-ray detection circuit control using the RFID antenna 301, acceleration sensor 303, X-ray detection sensor 304, and the like. The electric control circuit board 302 is attached to the back side (rear side) of the X-ray image pickup device support portion 33 or embedded in the rear side (rear side) of the X-ray image pickup device support portion 33 .
Note that other control-related parts and batteries may be provided on the electric control circuit board 302 or may be arranged at a location other than the X-ray imaging device support section 33 .

According to this configuration, the X-ray imaging aid 3 is provided with the erroneous attachment prevention means 30 having the RFID antenna 301, the electric control circuit board 302, and the like. Therefore, by performing RFID communication between the RFID antenna 301 and the electric control circuit board 302, it is possible to detect whether the imaging plate IP (not shown) is upside down.

<Attitude detection means>
The attitude detection means 34 shown in FIG. 1 is a detection device that detects the attitude of the X-ray imaging aid 3 . The attitude detection means 34 is composed of an acceleration sensor for detecting the angle of the X-ray imaging aid 3 .

<Wireless tag communication section>
The wireless tag communication unit 36 (erroneous attachment prevention means 30 ) is a communication device that communicates with the wireless tag 45 of the X-ray imaging device 4 . The wireless tag communication unit 36 is composed of, for example, an RFID antenna. The wireless tag communication unit 36 includes a writing unit 36a for writing at least the posture information from the posture detection unit 34 to the wireless tag 45 provided in the X-ray imaging device 4. FIG. Since the wireless tag communication unit 36 includes the writing means 36a, it is possible to write and store the posture information detected by the posture detection means 34 in the wireless tag 45. FIG.

Here, the "posture information" is the angle of the X-ray imaging aid 3 detected by the posture detection means 34 (acceleration sensor) (upward angle and downward angle of the X-ray imaging aid 3 during imaging). Information about

<Writing means>
The writing means 36a consists of an RFID writer for writing information to the wireless tag 45 (RFID). The writing means 36a writes the used instrument information about the used X-ray imaging aid 3 to the wireless tag 45. FIG. Also, the writing means 36a writes the posture information to the wireless tag 45 when the X-ray irradiation detecting means 39 detects that the X-ray is irradiated. Since the writing means 36a changes the type of instrument to be used according to the part to be imaged, by writing the information on the instrument to be used regarding the X-ray imaging aid 3, it is possible to know which part of the row of teeth the X-ray was taken. be able to

Here, the "instrument information in use" is information regarding the type of the X-ray imaging aid 3 being used.

<Notification means>
The notification means 37 is a notification device that notifies the result of the erroneous attachment prevention by the erroneous attachment prevention means 30 . The notification means 37 is composed of a device for notifying the operator of the front and back of the X-ray imaging device 4 by sound or light. For example, when communication with the wireless tag 45 provided in the X-ray imaging device 4 cannot be performed, the notification means 37 notifies the user by making a sound, by flashing an LED or the like, or by turning the LED or the like into a green color. It lights up in red to notify that the front and back of the X-ray imaging element 4 are wrong.

<X-ray imaging device detector>
The X-ray imaging device detection section 38 is a sensor for detecting that the X-ray imaging device 4 is attached to the X-ray imaging device support section 33 . The X-ray imaging device detector 38 is used as a trigger for communicating with the wireless tag 45 . The X-ray imaging element detection unit 38 is composed of, for example, a photosensor (for example, including a phosphor and a photodiode). Note that the X-ray imaging device detection unit 38 may be omitted when the wireless tag communication unit 36 can always communicate with the wireless tag 45 .

<X-ray irradiation detection means>
The X-ray irradiation detection means 39 is an X-ray detection sensor that detects that the X-ray irradiation unit 22 has irradiated X-rays.

<<X-ray imaging device 4>>
As shown in FIG. 2, the X-ray imaging element 4 is an element that acquires X-ray image information by detecting X-rays irradiated by an X-ray irradiation unit 22 and passing through a subject S (see FIG. 3). be. The X-ray imaging element 4 is composed of an imaging plate IP, a film, or the like. The X-ray imaging device 4 includes a mount 41, a stimulable phosphor layer 42 (X-ray image information acquisition section), a magnetic substance 44 (magnetic substance layer), a wireless tag 45, and a metal layer 43 (metal foil). and have.

<Imaging plate>
As shown in FIG. 4, the imaging plate IP is composed of the mount 41 and the X-ray image information acquiring section 42 described above. A metal layer 43, a magnetic body 44, and a wireless tag 45 are provided in a laminated state in this order on the back (rear) side of the imaging plate IP.

<Mount>
The mount 41 is a plate member having a stimulable phosphor layer 42 mounted on the front side (front side) and a metal layer 43 mounted on the back side (rear side).

<Stimulable phosphor layer>
The stimulable phosphor layer 42 (X-ray image information acquisition section) is a member that converts X-rays into image information. The photostimulable phosphor layer 42 functions as an X-ray image information acquisition section that acquires X-ray image information.

<Metal layer>
The metal layer 43 is a member for blocking RFID radio waves from the imaging surface (stimulable phosphor layer 42) to be radiographed to the wireless tag 45 to disable communication. The metal layer 43 is made of metal foil, for example. The metal layer 43 is arranged between the stimulable phosphor layer 42 and the wireless tag 45 with the mount 41 and the magnetic material 44 interposed therebetween.

<Magnetic material>
The magnetic material 44 (magnetic material layer) has a function of preventing interference between RFID radio waves and metal. That is, the magnetic body 44 enables communication of RFID radio waves from the back surface (rear surface) by preventing metal interference with the sheet-shaped magnetic body 44 . A magnetic body 44 is interposed between the metal layer 43 and the wireless tag 45 .

<Wireless tag>
The wireless tag 45 shown in FIGS. 1 and 4 is an IC tag for storing posture information from the posture detection means 34 for detecting the posture of the X-ray imaging aid 3 . The wireless tag 45 is composed of RFID, for example. The wireless tag 45 is provided on the opposite side of the stimulable phosphor layer 42 with the metal layer 43 interposed therebetween in the X-ray imaging device 4 .

≪Information reader≫
The information reading device 6 shown in FIG. 1 is an X-ray image reading device for reading X-ray image information from the X-ray imaging element 4 . The information reader 6 consists, for example, of an IP scanner with an RFID reader that reads the RFID information on the back of the imaging plate IP. The information reader 6 reads the information recorded in the wireless tag 45 of the X-ray imaging device 4 during X-ray imaging simultaneously with image scanning. The information reading device 6 includes an output information reading section 61 (information reading section), an X-ray image information reading section 62 and an information communication section 63 .

<Output information reader>
The output information reading unit 61 (information reading unit) is a reading device for reading at least posture information of the X-ray imaging aid 3 stored in the wireless tag 45 . The output information reading unit 61 is composed of, for example, an RFID reader.
Here, the output information is information associated with the X-ray image, and includes posture information, used instrument information, and information on imaging conditions.

<X-ray image information reading unit>
The X-ray image information reading unit 62 is a reading device that reads the X-ray image information recorded in the X-ray imaging device 4 . The X-ray image information reading unit 62 is composed of, for example, an IP scanner.

<Information Communication Department>
The information communication unit 63 is communication means arranged in the information reader 6 . The information communication unit 63 transmits the posture information of the X-ray imaging aid 3 read by the output information reading unit 61 and the X-ray image information reading unit 62 and the X-ray image information (X-ray image) to the information terminal 7 . It consists of a transmitting device that The information communication unit 63 may be either wired or wireless.

≪Information terminal≫
The information terminal 7 is, for example, It is a terminal device such as a personal computer. The information terminal 7 includes a communication unit 71, an X-ray image alignment processing unit 72, a patient information storage unit 73 (internal storage unit), a dentition analogy unit 74, a patient information calling unit 75, and an output information processing unit 76. (information processing section), an image information processing section 77, and a control device including a display device (not shown).

<Communication part>
The communication unit 71 is a receiving device that receives posture information of the X-ray imaging aid 3 and X-ray image information (X-ray image). The communication unit 71 is composed of communication means provided in the information terminal 7 . The communication unit 71 is, for example, a device that receives information read by the information reading device 6 at the information terminal 7 and a device that communicates with an external database. The communication unit 71 may be either wired or wireless.

<X-ray image alignment processing unit>
The X-ray image alignment processing unit 72 is configured to acquire and align X-ray images obtained by radiography based on the analogy by the dentition analogy unit 74 .

<Patient information storage unit>
The patient information storage unit 73 (internal storage unit) is a device that records various types of information about each patient. The patient information storage unit 73 is composed of RAM and ROM, for example. An operation program for acquiring patient information is installed in the patient information storage unit 73 .

<dentistry analogy>
As shown in FIG. 1, the dentition analogy unit 74 uses information about the equipment used for the X-ray imaging aid 3 and posture information of the X-ray imaging aid 3 to perform X-ray imaging. It is a device that analogizes the location of the dentition.
The dentition analogy section 74 may perform dentition analogy using feature points of the X-ray image instead of using the instrument information and posture information to align the X-ray images.
As a method for dentition analogy using feature points of X-ray images, there is a method using classification by supervised learning and deep learning using X-ray images of each dentition as learning data.

<Patient information calling unit>
The patient information calling unit 75 of the information terminal 7 is configured to call up patient information from the internal storage unit 73 or the external database 8 storing patient information about a patient to be subjected to X-ray imaging.

<Output information processing>
The output information processing unit 76 (information processing unit) receives the posture information and X-ray image information (X-ray image) of the X-ray imaging aid 3 and the patient information called by the patient information calling unit 75. It is associated and recorded in the internal storage unit 73 or the external database 8 .

<Image information processing unit>
The image information processing unit 77 is configured to perform processing for associating posture information of the X-ray imaging aid 3 and X-ray image information.
1 and FIG. 11B, which will be described later, the image information processing unit 77 is installed in the information terminal 7, but it may be installed in either the information terminal 7 or the information reading device 6. , in the information reader 6 .

<Display device>
A display device (not shown) is a monitor such as a liquid crystal display that displays X-ray image information (X-ray image) and various data.

≪External database≫
The external database 8 is a device that stores a list of patients recorded in a server (not shown), various information about each patient, and the like. The external database 8 can be accessed from the information terminal 7 to acquire data.

≪Action≫
Next, the operation of the X-ray imaging aid 3 and the X-ray imaging system 1 according to the embodiment of the present invention will be described.
First, as shown in FIG. 2, the X-ray imaging device 4 is set on the X-ray imaging device support portion 33 of the X-ray imaging aid 3 . As shown in FIG. 4, the X-ray imaging element 4 attached to the X-ray imaging aid 3 has a metal layer 43 (metal foil) and a magnetic material 44 (magnetic layer) on the back surface (rear surface) of the imaging plate IP. and a wireless tag 45 are provided. Therefore, when the X-ray imaging device 4 is attached to the X-ray imaging device supporting portion 33 facing down, the X-ray imaging device 4 is attached to the surface (front) side of the stimulable phosphor layer 42 (X-ray image). RFID radio waves from the information acquisition unit) are blocked by interference with the metal layer 43, and communication with the wireless tag communication unit 36 becomes impossible. However, when the X-ray imaging device 4 is attached to the X-ray imaging device supporting portion 33 face up, metal interference occurs due to the magnetic body 44 in the RFID radio waves from the back (rear) side of the X-ray imaging device 4 . Therefore, communication with the wireless tag communication unit 36 is possible.

The X-ray imaging device 4 thus enables communication from the back side (rear side) and disables communication from the front side (front side), thereby detecting whether the X-ray imaging device 4 is wrong. Therefore, it is possible to prevent the X-ray imaging element 4 from being attached upside down.
In this way, as shown in FIG. 2, the X-ray imaging element 4 is properly attached to the X-ray imaging aid 3, and X-ray imaging is performed with the dental X-ray 2. As shown in FIG. At this time, the X-ray imaging element 4 detects X-rays. At that time, the type of the X-ray imaging aid 3 used and the inclination angle of the X-ray imaging aid 3 detected by the posture detection means 34 are recorded in the wireless tag 45 .

Next, the information reader 6 reads the X-ray image and the RFID information. As a result, it is possible to specify the site X-rayed by the dental X-ray 2 based on the type of the X-ray imaging aid 3 used for X-ray imaging and the angle of the X-ray imaging aid 3 at the time of imaging. can. Therefore, it is possible to solve the problem that it is difficult to know which tooth T has been radiographed after radiography.

As described above, the X-ray imaging aid 3 according to the embodiment of the present invention aligns the X-ray irradiation unit 22 of the X-ray source that generates X-rays, as shown in FIG. 2, 3 or 1. a support arm 32 extending from the position alignment portion 31 in the X-ray irradiation direction; and an X-ray imaging device supporting portion 33 detachably supporting an X-ray imaging device 4 that acquires X-ray image information from passing X-rays in the oral cavity C. The imaging element support section 33 has an erroneous attachment prevention means 30 for preventing the X-ray imaging element 4 from being attached upside down.

According to such a configuration, the X-ray imaging aid 3 is provided with the X-ray imaging device support portion 33 with the erroneous attachment prevention means 30 for preventing the X-ray imaging device 4 from being attached upside down. For this reason, the X-ray imaging aid 3 is designed so that the stimulable phosphor layer 42 side of the X-ray imaging element 4 faces the X-ray irradiation side when X-ray imaging is performed using the imaging plate IP. Since the X-ray image can be confirmed, it can be easily determined from which part the X-ray image is taken. Therefore, the X-ray imaging aid 3 can prevent an X-ray image from being photographed upside down (horizontal reversal of an X-ray photographed image).

The X-ray imaging device support section 33 also has a wireless tag communication section 36 that communicates with the wireless tag 45 of the X-ray imaging device 4 .

Since the X-ray imaging device support section 33 has the wireless tag communication section 36, it can communicate with the wireless tag 45 of the X-ray imaging device 4 to exchange information.

In addition, the X-ray imaging aid 3 includes a notification means 37 for notifying the result of incorrect attachment prevention by the incorrect attachment prevention means 30; and the erroneous attachment prevention means 30 prevents communication between the wireless tag communication unit 36 and the wireless tag 45 provided on the X-ray imaging device 4 when the X-ray imaging device 4 is attached face down. make it impossible to do

According to this configuration, the erroneous attachment prevention means 30 prevents the wireless tag communication section 36 and the wireless tag 45 from communicating with each other when the X-ray imaging device 4 is attached face down. , it is possible to prevent the X-ray image from being taken upside down.

Moreover, the X-ray imaging aid 3 further has an attitude detection means 34 for detecting the attitude of the X-ray imaging aid 3 , and the wireless tag communication section 36 detects the wireless tag 45 provided in the X-ray imaging device 4 . is provided with writing means 36a for writing at least the attitude information from the attitude detecting means 34 in the.

According to such a configuration, the wireless tag communication unit 36 is provided with the writing unit 36a, so that the posture information detected by the posture detection unit 34 can be written into the wireless tag 45 and stored.

Also, the writing means 36a shown in FIG.

According to this configuration, the writing means 36a writes information on the instruments to be used regarding the X-ray imaging aid 3 to the wireless tag 45, so that the type of instrument to be used changes according to the part to be X-rayed. It is possible to grasp which part of the image was taken. Thereby, the writing means 36a can write information used for automatically aligning X-ray images obtained by radiography.

Further, as shown in FIG. 1, the X-ray imaging aid 3 further includes X-ray irradiation detection means 39 for detecting X-ray irradiation from the X-ray irradiation unit 22. However, the writing means 36a writes the posture information to the wireless tag 45 when it detects that the X-ray has been irradiated.

According to such a configuration, the writing means 36a can write the posture information to the wireless tag 45 when the X-ray irradiation detection means 39 detects the X-ray emitted from the X-ray irradiation section 22. FIG.

Further, as shown in FIG. 1, the X-ray imaging system 1 according to the embodiment of the present invention includes an X-ray imaging aid 3, an X-ray imaging device 4, an information reader 6, an information terminal 7, , the X-ray imaging device 4 includes a wireless tag 45 for storing orientation information from orientation detection means 34 for detecting the orientation of the X-ray imaging aid 3, and an X-ray image The information reader 6 includes an output information reader 61 (information reader) for reading at least posture information recorded in the wireless tag 45; An X-ray image information reading unit 62 for reading X-ray image information recorded in the line imaging device 4, and posture information and X-ray image information (X-ray image information) read by the output information reading unit 61 and X-ray image information reading unit 62. ) to the information terminal 7, the information terminal 7 has a communication unit 71 for receiving posture information and X-ray image information (X-ray image), the information reading device 6 and At least one of the information terminals 7 has an image information processing unit 77 that associates posture information with X-ray image information (X-ray image).

According to this configuration, in the X-ray imaging system 1, one of the information reading device 6 and the information terminal 7 has the image information processing unit 77 that associates the posture information with the X-ray image information (X-ray image). By sending the information to the information terminal 7 in association with the X-ray image information, the operator can easily determine whether the upper jaw or the lower jaw has been X-rayed. As a result, when X-ray imaging is performed using the imaging plate IP, the present invention makes it possible to easily determine which part of the X-ray image is taken, and to use the X-ray imaging aid 3. Therefore, it is possible to provide an X-ray imaging aid 3 and an X-ray imaging system 1 that allow an operator to easily grasp an X-rayed part.

In addition, as shown in FIG. 1, the information terminal 7 includes a patient information calling unit 75 for calling patient information from an internal storage unit 73 storing patient information about a patient to be X-rayed or from an external database 8, and an information processing unit 76 that associates information and X-ray image information (X-ray image) with the patient information called by the patient information calling unit 75 and records it in the internal storage unit 73 or the external database 8 .

According to such a configuration, the information terminal 7 includes the information processing section 76 so that the received posture information and X-ray image information and the patient information called by the patient information calling section 75 are associated and organized. , the internal storage unit 73 or the external database 8 . For this reason, the information terminal 7 records and calls up the recorded X-ray image information (X-ray images) of many patients and the posture information of the X-ray imaging aid 3 in a state organized for each patient. This makes it easier to check the data later when checking it again.

Also, the wireless tag 45 (see FIG. 3) is an RFID.

According to such a configuration, the wireless tag 45 is an RFID tag that incorporates a battery, emits radio waves, and is capable of long-distance communication, so that information can be exchanged by wireless communication.

In addition, as shown in FIG. 1, the information terminal 7 provides a dentition analogy for estimating the position of the X-rayed dentition by using the used instrument information and posture information related to the X-ray imaging aid 3 used. and an X-ray image alignment processing unit 72 that aligns the X-ray images based on the analogy of the dentition analogy unit 74 .

According to this configuration, the dentition analogy section 74 of the information terminal 7 includes the X-ray image alignment processing section 72, and aligns the X-ray images based on the data analogizing the location of the X-rayed dentition. The X-ray image data can be easily viewed because the X-ray image data can be arranged according to the order.

Further, the dentition analogy section 74 performs analogy using the characteristic points of the X-ray image information (X-ray image) to align the X-ray images.

With such a configuration, the dentition analogy section 74 can perform dentition analogy using feature points of the X-ray image information (X-ray image) and align the X-ray images. By making the X-ray image data easy to see, it is possible to make it easy to understand which tooth T the X-ray image is. Therefore, even if there is no used instrument information and orientation information, it is possible to perform image processing on all 10 (or 14) images and automatically align 10 (or 14) images from feature points.

The X-ray imaging element 4 is an imaging plate IP, and the imaging plate IP has a stimulable phosphor layer 42 that converts X-rays into image information and a stimulable phosphor layer 42 provided on the opposite side of the stimulable phosphor layer 42 . and a metal layer 43 between the photostimulable phosphor layer 42 and the wireless tag 45. The metal layer 43 transmits radio waves to the wireless tag 45 from the imaging surface to be X-rayed. block the

According to such a configuration, the X-ray imaging element 4 has the metal layer 43 between the photostimulable phosphor layer 42 and the wireless tag 45, so that the wireless tag 45 is visible from the X-ray imaging plane. can block radio waves to Therefore, it is possible to determine whether the X-ray imaging device 4 is arranged on the front side or the back side of the X-ray imaging device 4 by the presence or absence of blocking. As a result, it is possible to easily recognize whether the X-ray imaging element 4 is correctly attached to the X-ray imaging aid 3 or whether it is attached upside down.

Further, between the metal layer 43 and the wireless tag 45, there is a magnetic layer (magnetic body 44) that prevents interference between RFID radio waves and metal.

According to such a configuration, the X-ray imaging device 4 has the magnetic layer (magnetic body 44) between the metal layer 43 and the wireless tag 45, thereby preventing interference between RFID radio waves and metal. can.

[First modification]
It should be noted that the present invention is not limited to the above-described embodiments, and various modifications and changes are possible within the scope of its technical ideas, and the present invention does not extend to these modified and changed inventions. Of course. It should be noted that the same reference numerals are given to the configurations already explained, and the explanation thereof will be omitted.

FIG. 10A is a diagram showing a first modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, in which dentition analogy is performed using instrument information, posture information, and positioning means position information. FIG. 10 is a perspective view of an X-ray imaging aid used when performing radiography. FIG. 10B is a perspective view showing an X-ray imaging aid used for the maxillary left molar region and the mandibular right molar region. FIG. 10C is an explanatory diagram showing the state of the X-ray imaging aid when imaging the maxillary anterior teeth. FIG. 10D is an explanatory diagram showing the state of the X-ray imaging aid when imaging the maxillary left premolar. FIG. 10E is an explanatory diagram showing the state of the X-ray imaging aid when imaging the maxillary left molar. FIG. 10F is a diagram showing a first modified example of the X-ray imaging aid according to the embodiment of the present invention, and is an explanatory diagram of a case where two types of X-ray imaging aids are used to analogize the dentition. . FIG. 10G is an explanatory diagram showing the relationship between the used instrument and position information, and the alignment positions of the X-ray images.

The support arm 32 of the X-ray imaging aid 3 (see FIG. 2) described in the above embodiment, like the X-ray imaging aids F and G shown in FIGS. 1, 10A, 10B, and 10F, The support arms 32F and 32G include positioning means 32F1 and 32G1 for determining the positions of the X-ray imaging aids F and G within the oral cavity C, positioning means mounting holes 32F3 and 32G3 for mounting the positioning means 32F1 and 32G1, and the positioning means. Positioning means mounting plates 32F2 and 32G2 having means mounting holes 32F3a, 32F3b, 32F3c, 32G3a, 32G3b and 32G3c, and X-ray imaging aids F and G are positioning means for detecting the positions of the positioning means 32F1 and 32G1. A means position detection means (X-ray imaging device detection unit 38) may be provided, and the writing means 36a may write the positioning means position information detected by the positioning means position detection means to the wireless tag 45. FIG.

According to such a configuration, as shown in FIG. 1, FIG. 10A, or FIG. 10B, the writing means 36a is a positioning means position detection means (X-ray imaging element detection section 38) for detecting the positions of the positioning means 32F1 and 32G1. Since the detected positioning means position information is written in the wireless tag 45, it is possible to record the information used for automatically aligning the X-ray images.

In this case, the X-ray imaging aids F and X-ray imaging aids G are used when dentition analogy is performed using two types of X-ray imaging aids F and G, as will be described later. It is an auxiliary tool for As shown in FIGS. 10A and 10B, the X-ray imaging aid F and the X-ray imaging aid G are formed in a symmetrical shape.

The support arms 32F and 32G are formed in a substantially L-shape in plan view. The support arms 32F and 32G have rear end portions 32Fa and 32Ga extending in the left-right direction. A substrate portion 33a of the X-ray imaging device support portion 33 is mounted on the mounting portions 32Fa and 32Ga. Positioning means mounting plates 32F2 and 32G2 are mounted on the substrate portion 33a. The substrate portion 33a and the rear protruding piece 33d may be integrated or separated.

Three positioning means mounting holes 32F3a, 32F3b, 32F3c, 32G3a, 32G3b and 32G3c are formed at suitable intervals in the positioning means mounting plates 32F2 and 32G2. Insertion portions (not shown) projecting from the lower surfaces of the positioning means 32F1 and 32G1 are inserted into the positioning means mounting holes 32F3a, 32F3b, 32F3c, 32G3a, 32G3b and 32G3c.

As shown in FIG. 10C, the positioning means mounting holes 32F3a and 32G3a (see FIG. 10B) are the front teeth to which the positioning means 32F1 and 32G1 are mounted when the front teeth are measured using the X-ray imaging aids F and G. The maxillary position information of the measurement position is "0" (see FIGS. 10F and 10G).
As shown in FIG. 10D, the positioning means mounting holes 32F3b and 32G3b (see FIG. 10B) are used to mount the positioning means 32F1 and 32G1 when the bicuspids are measured using the X-ray imaging aids F and G. The maxillary position information of the bicuspid measurement position is "1" (see FIGS. 10F and 10G).
As shown in FIG. 10E, the positioning means mounting holes 32F3c and 32G3c (see FIG. 10B) are used to mount the positioning means 32F1 and 32G1 when the molar teeth are measured using the X-ray imaging aids F and G. The maxillary position information of the molar measurement position is "2" (see FIGS. 10F and 10G).
The positioning means mounting plates 32F2 and 32G2 and the elastic support piece 33c may be integrated or separated.

The positioning means 32F1 and 32G1 are rectangular parallelepipeds made of an elastic material such as rubber or expanded polystyrene. As shown in FIGS. 10C to 10E, the positioning means 32F1 and 32G1 can be positioned at a predetermined photographing position in the oral cavity C by biting them with front teeth or the like.

The X-ray imaging aid F and the X-ray imaging aid G are provided with positioning means position detection means (not shown) (X-ray imaging device detector 38 (FIG. 1) for detecting the mounting positions of the positioning means 32F1 and 32G1. )) is provided, and the position information of the positioning means position detecting means can be detected by the positioning means position detecting means.

Next, the equipment information of the X-ray imaging aid F and the X-ray imaging aid G written in the wireless tag 45 (see FIG. 1) and the attitude information from the attitude detection means 34 (see FIG. 1) are used. , positioning means position information from the positioning hand position detecting means (X-ray imaging element detecting section 38 (see FIG. 1)), and dentition analogy.

When radiographing the maxillary anterior teeth using the X-ray imaging aid F, as shown in FIG. 10C, dental X-ray 2 (see FIGS. 1 and 2) is taken while the positioning means 32F1 is bitten by the maxillary anterior teeth. to shoot.
When radiographing the maxillary left premolar using the X-ray imaging aid F, as shown in FIG. A dental X-ray 2 (see FIGS. 1 and 2) is taken while biting with the front teeth.
When imaging the upper left molar using the X-ray imaging aid F, as shown in FIG. In the state of chewing with a dental X-ray 2 (see FIGS. 1 and 2).

When radiography is performed on the maxillary side using the X-ray imaging aid F in this way, the positions of the X-ray imaging aid F are adjusted with respect to the maxillary anterior teeth, the maxillary left premolars, and the maxillary left molars. The dental X-ray 2 (see FIGS. 1 and 2) is taken by shifting and changing the position of the positioning means 32F1.

Furthermore, when imaging the mandibular side using the X-ray imaging aid F, as shown in FIGS. The position of the X-ray imaging aid F is shifted to change the position of the positioning means 32F1 with respect to the molar tooth and the right mandibular molar tooth, and the dental radiograph 2 (see FIGS. 1 and 2) is taken.

Then, as shown in FIGS. 10F and 10G, when imaging the maxillary side using the X-ray imaging aid G (see FIG. 10B), for the maxillary right premolar and the maxillary right molar, By shifting the position of the X-ray imaging aid G and changing the position of the positioning means 32F1, imaging is performed with the dental X-ray 2 (see FIGS. 1 and 2). Furthermore, when imaging the mandibular side using the X-ray imaging aid G, the X-ray imaging aid G is turned upside down, and X By shifting the position of the X-ray imaging aid G and changing the position of the positioning means 32F1, imaging is performed with the dental X-ray 2 (see FIGS. 1 and 2).

In this way, when the tooth row is inferred using the used instrument information, the posture information, and the positioning means position information, there are three types of used instrument information as in the above-described embodiment. By using the position of the bite block for occlusion of the radiographic aid G as positional information, automatic alignment of the 10-frame method images becomes possible. Also, in the case of the 14-blade method, it can be handled by increasing the number of holes for positioning the bite block. Although the case where the X-ray imaging aid F is used for imaging the anterior teeth has been described, either the X-ray imaging aid F or the X-ray imaging aid G can be used. good.

In dental imaging, as shown in FIG. 10G, there are a 10-image method in which all the teeth T in the oral cavity C are imaged in 10 times and a 14-image method in which images are taken 14 times. In the 10-frame method and the 14-frame method, 10 (or 14) IPs are prepared, 10 (or 14) images are taken continuously, the image information of the captured IP is read, and each image information is loaded into the information terminal 7, the images are aligned (mainly manually) according to the template.
In this alignment, it is necessary to determine which region the image information belongs to. However, since it is difficult to judge maxillary right molars, maxillary left molars, mandibular right molars, mandibular left molars, etc., it is possible to automatically align or assist the automatic alignment by analogizing the dentition. Become.

Further, the dentition analogy section 74 shown in FIG. 1 performs analogy using the positioning means position information detected by the positioning means position detecting means (X-ray imaging element detecting section 38) for detecting the positions of the positioning means 32F1 and 32G1. , the X-ray images may be aligned.

According to such a configuration, the dentition analogy part 74 can make it easy to understand which tooth T the X-ray image corresponds to by aligning the X-ray images.

[Second modification]
FIG. 11A is a diagram showing a second modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, and is an enlarged schematic cross-sectional view of the main part showing the X-ray imaging device. FIG. 11B is a block diagram showing a second modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention.

The X-ray imaging device 4 (see FIG. 4) described in the above embodiment, like the X-ray imaging device 4B shown in FIGS. ) may be provided. In other words, the erroneous attachment prevention means 30B is the magnet 35 that repels the magnet 46 provided on the X-ray imaging device 4B when the X-ray imaging device 4B is attached face down.

In this case, the magnet 35 (erroneous attachment prevention means 30) is arranged so as to repel the magnet 46 provided on the X-ray imaging device 4B when the X-ray imaging device 4 is attached face down. Incorrect attachment is prevented depending on whether or not there is repulsion.

The magnet 46 (magnet layer) repels the magnet 35 (see FIG. 11B) provided in the X-ray imaging device support portion 33 of the X-ray imaging aid 3 from the stimulable phosphor layer 42 side, and the wireless tag 45 It is a member that attracts from the side. A magnet 46 is interposed between the metal layer 43 and the wireless tag 45 .
The X-ray imaging device 4B has a magnet 46 (magnet layer) provided between an imaging plate IP composed of a mount 41 and a photostimulable phosphor layer 42 and a wireless tag 45 to back the X-ray imaging device 4B. The magnet 46 of the X-ray imaging element 4B is set so as to repel the magnetic force of the magnet 35 of the X-ray imaging aid 3 when arranged in the orientation.

According to such a configuration, by incorporating the magnet 35 into the X-ray imaging aid 3 and incorporating the magnet 46 into the imaging plate (IP), the imaging plate IP repels the magnet 46 when the imaging plate IP is attached face down. It is found that the imaging plate IP is facing down because it cannot be set on the back side. Also, when the imaging plate IP is attached face up, the magnets 35 and 46 are attracted to each other, so it is known that the imaging plate IP is face up. As a result, it is possible to prevent the imaging plate IP from being set in the opposite direction, thereby preventing the X-ray image from being taken upside down.

A magnet layer (magnet 46 ) is provided between the metal layer 43 and the wireless tag 45 . They may repel each other and attract each other from the wireless tag 45 side.

According to such a configuration, the X-ray imaging element 4B includes the magnet layer (magnet 46) between the metal layer 43 and the wireless tag 45, so that the magnet layer is the magnet 35 and the stimulable phosphor layer 42. There is repulsion from the side, and attraction from the wireless tag 45 side. Therefore, the X-ray imaging device 4B can determine whether the magnet layer is arranged with the magnet 35 and the stimulable phosphor layer 42 side facing forward or with the wireless tag 45 side facing forward.

[Other Modifications]
In the above embodiment, three types of X-ray imaging aids 3A, 3B, and 3C (see FIG. 3) are described, and in the first modification, two types of X-ray imaging aids F and G (FIGS. 10A and 10B) are described. 10B), the invention is not limited thereto. For example, three types of X-ray imaging aids 3A, 3B, and 3C (see FIG. 3) and two types of X-ray imaging aids F and G (see FIGS. 10A and 10B) for a total of five types of X The dentition analogy may be inferred using a radiographic aid.

In this case, since there are five kinds of used equipment information of the X-ray imaging aids 3A, 3B, 3C, F, and G, and two kinds of posture information (up and down) by the posture detection means 34, a total of 10 places can be discriminated. Become. It is possible to automatically align the 10 images based on the information on the instruments used and the posture information, because it is possible to know which of the 10 images of the tooth T imaged by the dental X-ray 2 (see FIGS. 1 and 2). becomes.

FIG. 12A is a diagram showing another modified example of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention. It is a perspective view which shows an auxiliary tool for photography. FIG. 12B is a diagram showing another modification of the X-ray imaging aid and the X-ray imaging system according to the embodiment of the present invention, in which X-rays are used for the maxillary right premolar and the mandibular left premolar. It is a perspective view which shows an auxiliary tool for photography.

In addition, the X-ray imaging aid 3 further includes an X-ray imaging aid D (see FIG. 12A) for the maxillary left premolar and mandibular right premolar to facilitate insertion into the oral cavity. , and an X-ray imaging aid E for the maxillary right premolar and mandibular left premolar (see FIG. 12B).
That is, the two types of X-ray imaging aids F and G described above may be two types of X-ray imaging aids D and E shown in FIGS. 12A and 12B.

The X-ray imaging aid D shown in FIG. 12A is an aid used for the maxillary left premolar and the mandibular right premolar. The X-ray imaging aid E shown in FIG. 12B is used for the maxillary right premolar and the mandibular left premolar. The X-ray imaging aids D and E shown in FIGS. 12A and 12B are the X-ray imaging aid 3B for left and right mandibular molars and the X-ray imaging aid for right maxillary molars shown in FIGS. 3C, the shape of the support arms 32D and 32E bent in a substantially V shape and protruding in the lateral direction is formed smaller than the support arms 32B and 32C in accordance with the shape of the jaw having the bicuspids. there is

1 X-ray imaging system 2 Dental X-ray 3, F, G X-ray imaging aid 3A Anterior teeth X-ray imaging aid 3B Maxillary left and mandibular right molar X-ray imaging aid 3C Maxillary right molar X-ray imaging Auxiliary tool 4, 4B X-ray imaging device 6 Information reader 7 Information terminal 8 External database 22 Radiation unit 30, 30B Incorrect mounting prevention means 31 Alignment unit 32, 32A, 32B, 32C, 32F, 32G Support arm 32F1, 32G1 Positioning Means 32F2, 32G2 Positioning Means Mounting Plate 32F3, 32G3 Positioning Means Mounting Hole 33 X-ray Imaging Device Supporting Portion 34 Attitude Detection Means (Incorrect Mounting Prevention Means)
35 Magnet 36 Wireless Tag Communication Unit 36a Writing Means 37 Reporting Means 38 X-ray Imaging Device Detector (Positioning Means Position Detecting Means)
39 X-ray irradiation detection means 42 X-ray image information acquisition unit (stimulable phosphor layer)
43 metal layer 44 magnetic substance (magnetic substance layer)
45 wireless tag 46 magnet (magnet layer)
61 output information reading unit (information reading unit)
62 X-ray image information reading unit 63 Information communication unit 71 Communication unit 72 X-ray image alignment processing unit 73 Internal storage unit 74 Dental row analogy unit 75 Patient information calling unit 76 Information processing unit 77 Image information processing unit C Oral cavity IP Imaging plate S subject

Claims (17)

an alignment unit for aligning an X-ray irradiation unit of an X-ray source that generates X-rays;
a support arm extending from the alignment portion in the X-ray irradiation direction;
An X-ray imaging device that is provided at the tip of the support arm and detachably supports an X-ray imaging device that acquires X-ray image information from the X-ray irradiated by the X-ray irradiator and passed through the subject in the oral cavity. An X-ray imaging aid comprising a support,
An X-ray imaging assisting device, wherein the X-ray imaging device support section includes an erroneous attachment prevention means for preventing the X-ray imaging device from being attached upside down. The X-ray according to claim 1, wherein the erroneous attachment prevention means is a magnet that repels a magnet provided in the X-ray imaging device when the X-ray imaging device is attached face down. Shooting aid. 3. The X-ray imaging aid according to claim 1, wherein the X-ray imaging device support section has a wireless tag communication section that communicates with a wireless tag of the X-ray imaging device. an informing means for informing a result of the erroneous attachment prevention by the erroneous attachment prevention means;
a wireless tag communication unit that communicates with the wireless tag of the X-ray imaging device,
The erroneous attachment prevention means prevents communication between the wireless tag communication unit and the wireless tag provided on the X-ray imaging device when the X-ray imaging device is attached face down. The X-ray imaging aid according to claim 1, characterized in that: further comprising posture detection means for detecting the posture of the X-ray imaging aid;
5. The wireless tag communication unit according to claim 3, further comprising a writing unit for writing at least the posture information from the posture detection unit to the wireless tag provided in the X-ray imaging device. X-ray imaging aid. 6. The X-ray imaging aid according to claim 5, wherein said writing means writes used instrument information relating to the used X-ray imaging aid to said wireless tag. The support arm includes positioning means for determining the intraoral position of the X-ray imaging aid, a positioning means mounting hole for mounting the positioning means, and a positioning means mounting plate having the positioning means mounting hole,
The X-ray imaging aid comprises positioning means position detection means for detecting the position of the positioning means,
7. The X-ray imaging aid according to claim 5, wherein the writing means writes the positioning means position information detected by the positioning means position detecting means into the wireless tag. Further comprising X-ray irradiation detection means for detecting that X-rays are irradiated from the X-ray irradiation unit,
8. The writing unit writes the posture information to the wireless tag when the X-ray irradiation detection unit detects that the X-ray irradiation has been performed. 1. The X-ray imaging aid according to 1. An X-ray imaging system comprising the X-ray imaging aid according to any one of claims 1 to 8, the X-ray imaging element, an information reader, and an information terminal ,
The X-ray imaging device is
a wireless tag for storing posture information from posture detection means for detecting the posture of the X-ray imaging aid;
an X-ray image information acquisition unit that acquires the X-ray image information,
The information reading device
an information reading unit for reading at least posture information recorded in the wireless tag;
an X-ray image information reading unit that reads X-ray image information recorded in the X-ray imaging device;
an information communication unit configured to transmit posture information and X-ray image information read by the information reading unit and the X-ray image information reading unit to the information terminal;
The information terminal is
a communication unit that receives the posture information and the X-ray image information;
An X-ray imaging system, wherein at least one of the information reading device and the information terminal has an image information processing unit that associates the posture information with the X-ray image information. The information terminal is
a patient information calling unit that calls up the patient information from an internal storage unit or an external database that stores patient information about a patient to be subjected to X-ray imaging;
an information processing unit that associates the received posture information and X-ray image information with the patient information called by the patient information calling unit and records the information in the internal storage unit or the external database. 9. The X-ray imaging system according to 9. 11. The X-ray imaging system according to claim 9, wherein said wireless tag is an RFID. The information terminal is
a dentition analogy part for estimating the location of the X-rayed dentition using the instrument information and the posture information related to the X-ray imaging aid used;
The X-ray imaging system according to any one of claims 9 to 11, further comprising an X-ray image alignment processing unit that aligns the X-ray images based on the analogy of the dentition analogy unit. . 13. The X-ray imaging system according to claim 12, wherein the dentition analogy unit further performs the analogy using feature points of the X-ray image information to align the X-ray images. 13. The dentition analogy section further performs the analogy using the positioning means position information detected by the positioning means position detecting means for detecting the position of the positioning means, and aligns the X-ray images. The X-ray imaging system according to claim 13. The X-ray imaging device is an imaging plate,
The imaging plate includes a stimulable phosphor layer that converts X-rays into image information;
a wireless tag provided on the opposite side of the stimulable phosphor layer;
a metal layer between the stimulable phosphor layer and the wireless tag;
15. The X-ray imaging system according to any one of claims 9 to 14, wherein the metal layer blocks radio waves from an imaging surface to be radiographed to the wireless tag. 16. The X-ray imaging system according to claim 15, further comprising a magnetic layer for preventing interference between RFID radio waves and metal between said metal layer and said wireless tag. A magnet layer is provided between the metal layer and the wireless tag,
16. The X-ray according to claim 15, wherein the magnet layer repels the magnet provided on the X-ray imaging aid from the stimulable phosphor layer side and attracts from the wireless tag side. shooting system.

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