JP2016193163A - Dental oral cavity radiographic device and dental oral cavity radiographic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental oral cavity radiographic device and the like which can obtain an X-ray image of a radiography target tooth easily and accurately.SOLUTION: The dental oral cavity radiographic device includes: an imaging part 10 including an imaging member having any one of an imaging plate, an X-ray film, and an X-ray imaging element; an X-ray irradiation part 70; and an imaging auxiliary tool 50 including a retention part retaining the imaging part in a rotatable state and a guide part connected with the retention part, arranged at a position facing the imaging member, and used for positioning of the X-ray irradiation part 70. The imaging auxiliary tool 50 or the imaging part 10 includes an angle sensor acquiring information on an angle formed by the imaging part 10 and the retention part. The guide part includes an actuator 65 retaining the X-ray irradiation part 70 and moving the X-ray irradiation part 70. Movement control of the X-ray irradiation part by the actuator 65 is performed based on the information on the angle acquired by the angle sensor.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a dental intraoral X-ray imaging apparatus and the like.

  Patent Document 1 proposes a dental intraoral X-ray imaging apparatus.

JP 2011-188880 A

  However, alignment of the X-ray apparatus to an appropriate place in the dental intraoral X-ray imaging apparatus must be performed manually by the user, and if the alignment is incorrect, the imaging target tooth can be accurately imaged. Absent.

  Therefore, an object of the present invention is to provide a dental intraoral X-ray imaging apparatus and the like that can easily and accurately obtain an X-ray image of a subject to be imaged.

  A dental intraoral X-ray imaging apparatus according to the present invention rotates an imaging unit having an imaging member having any one of an imaging plate, an X-ray film, and an X-ray imaging device, an X-ray irradiation unit, and an imaging unit. An imaging assisting device comprising: a retaining unit that holds in a possible state; and an imaging assisting tool having a guide unit that is connected to the retaining unit and is provided at a position facing the imaging member and used for alignment of the X-ray irradiation unit The tool or the imaging unit has an angle sensor that acquires information about the angle formed by the imaging unit and the holding unit, and the guide unit has an actuator that holds the X-ray irradiation unit and moves the X-ray irradiation unit, The movement control of the X-ray irradiation unit by the actuator is performed based on information about the angle obtained by the angle sensor.

  Positioning (by aligning the X-ray irradiating unit with the position corresponding to the information related to the angle) is automatically performed by the drive control of the actuator, so that the user can easily and accurately capture the X-ray image of the imaging target tooth. It becomes possible to obtain.

  Preferably, a grip for holding the retaining portion is further provided, and the grip incorporates a high voltage generator for supplying power to the X-ray irradiation portion.

  It is possible to reduce the weight of the X-ray irradiation unit located away from the grip to be gripped.

  Preferably, the guide unit includes a plurality of light emitting devices on a side portion, and each of the plurality of light emitting devices is provided at a position where the X-ray irradiation unit is moved by an actuator, and among the plurality of light emitting devices, What is provided at a position corresponding to the information about the angle obtained by the angle sensor is subjected to lighting control different from the rest of the plurality of light emitting devices.

  By confirming the light emission state of the light emitting device and the position of the X-ray irradiation unit moved by the actuator, it can be confirmed that the alignment has been completed.

  The dental intraoral X-ray imaging system according to the present invention rotates an imaging unit having an imaging member having any one of an imaging plate, an X-ray film, and an X-ray imaging device, an X-ray irradiation unit, and an imaging unit. A holding unit that holds the holding unit in a possible state, an imaging assisting tool that has a guide unit that is connected to the holding unit and that faces the imaging member and is used for alignment of the X-ray irradiation unit, and the holding unit The imaging assisting tool or the imaging unit has an angle sensor for acquiring information about the angle formed by the imaging unit and the holding unit, the guide unit holds the X-ray irradiation unit, and the X-ray irradiation unit The movement control of the X-ray irradiation unit by the actuator is performed based on information about the angle obtained by the angle sensor, and a base part and a column extending vertically from the base part And a stand having a rotation holding part attached to the upper part of the pillar and holding the arm in a state of being rotatable around the axis of the pillar, an arm extending in the horizontal direction from the rotation holding part, and a connecting member extending from the arm, The connecting member is connected to the retaining part or the grip.

  Since the dental intraoral X-ray imaging apparatus (imaging unit, imaging assisting tool, X-ray irradiation unit) is held by the stand, the holding burden on the user (subject or operator) holding the grip is reduced. It becomes possible.

  Preferably, at least one of the column, the arm, and the connection member is configured by an extendable member, and the connection member is detachably connected to the side surface of the retaining portion.

  Preferably, the stand is provided with a high voltage generator for supplying power to the X-ray irradiation unit.

  The grip is lighter than a form that incorporates a high-voltage generator, etc., the burden on the user (subject or operator) holding the grip is reduced, and the dental intraoral X-ray imaging device is lighter As a result, it is possible to make the stand more difficult to fall down as much as the base portion becomes heavier.

  As described above, according to the present invention, it is possible to provide a dental intraoral X-ray imaging apparatus and the like that can easily align the X-ray apparatus.

It is a perspective view which shows the stand before a dental intraoral X-ray apparatus before the X-ray irradiation part in this embodiment is attached, and a dental intraoral X-ray apparatus. It is a block diagram of the electrical component in the dental intraoral X-ray imaging apparatus in this embodiment. It is a perspective view of a dental intraoral X-ray imaging system, and shows a state where the first angle is small. It is a perspective view of a dental intraoral X-ray imaging system, and shows a state where the first angle is large. Imaging member (first imaging member, second imaging member), cover (first cover, second cover), holding part (first vertically long holding part, second vertically long holding part, first horizontally long holding part, second horizontally long holding) Part) and the support part attached to the retaining part from the front. Imaging member (first imaging member, second imaging member), cover (first cover, second cover), holding part (first vertically long holding part, second vertically long holding part, first horizontally long holding part, second horizontally long holding) It is the perspective view which looked at the part) from back. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding an X-ray irradiation part) before attaching a first cover to a first vertically long holding part before attaching a first vertically long holding part to a support part. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding an X-ray irradiation part) before attaching a first cover to a first vertically long holding part in a state where the first vertically long holding part is attached to a support part. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding an X-ray irradiation unit) in a state where a first vertically long holding part is attached to a support part and a first cover is attached to the first vertically long holding part. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding the X-ray irradiation unit) in a state in which a second horizontally long holding part is attached to a support part and a second cover is attached to the second horizontally long holding part. It is a side view which shows the structure of a dental intraoral X-ray imaging apparatus. It is a top view which shows the structure of a dental intraoral X-ray imaging apparatus. It is a perspective view of a dental intraoral X-ray imaging system when a high voltage generator is built in a base part. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding an X-ray irradiation unit) in a state where a part is covered with a waterproof cover. It is a perspective view of a dental intraoral X-ray imaging apparatus (excluding an X-ray irradiation unit) provided with two grips.

  Hereinafter, the configuration of the dental intraoral X-ray imaging system in the present embodiment will be described with reference to the drawings. The dental intraoral X-ray imaging system 1 according to this embodiment includes a dental intraoral X-ray imaging apparatus 100 and a stand 200 (see FIGS. 1 to 14).

  The dental intraoral X-ray imaging apparatus 100 includes an imaging unit 10, a grip 30, an imaging auxiliary tool (indicator) 50, and an X-ray irradiation unit 70.

Details of the photographing unit 10 will be described.
The imaging unit 10 includes an imaging member 11 (first imaging member 11a and second imaging member 11b), a cover 13 (first cover 13a and second cover 13b), and a holding unit 15 (first vertically long holding unit 15a and second vertically long). A holding portion 15b, a first horizontally long holding portion 15c, a second horizontally long holding portion 15d) and a support portion 17 are provided (see FIGS. 5 and 6).

  The imaging member 11 includes an X-ray film or an imaging plate, and a first imaging member 11a (4 cm × 3 cm) having a large light receiving area and a small second imaging member in accordance with the size of a subject to be imaged (the size of a patient). Two types of 11b (3 cm × 2.5 cm) are prepared.

  However, the imaging member 11 may be a light receiving device having an X-ray imaging element such as a scintillator that converts X-rays into visible light or a CCD that converts the visible light into electrification. In this case, a power source for driving the light receiving device is built in, or connected to a power source or an image processing device provided in the grip 30 or the like via a cable (not shown). Further, when the imaging member 11 is a light receiving device, a first imaging member 11a having a large light receiving area and a second imaging member 11b having a small light receiving area are prepared.

The cover 13 is made of a light-shielding material such as aluminum foil or rubber, and is a case that houses the imaging member 11 to prevent the imaging member 11 from being exposed to light. The cover 13 has two types according to the size of the imaging member (a large first cover 13a). A small second cover 13b) is prepared.
The cover 13 is disposed closer to the X-ray irradiation unit 70 than the holding unit 15.

  The holding unit 15 is provided with a sandwiching member such as a clip on the front surface, and uses the sandwiching member to hold the cover 13 that houses the imaging member 11 (see FIG. 5).

  The holding unit 15 incorporates an X-ray shielding member such as lead in order to minimize the exposure amount of the subject (the person having the imaging target tooth) (see FIG. 6).

  The holding portion 15 is provided with an engaging member such as a groove or a shoe on the back surface, and is attached to the support portion 17 through the engaging member in a detachable state.

  The holding portion 15 is a first vertically long holding portion 15a that holds the first cover 13a in a vertically long shape, a second vertically long holding portion 15b that holds the second cover 13b in a vertically long shape, and a first horizontally long holding that holds the first cover 13a in a horizontally long shape. Four types of portions 15c and second horizontally long holding portions 15d that hold the second cover 13b in a horizontally long shape are prepared (see FIGS. 5 and 6).

  The length of the first cover 13a in the vertical direction, the length of the X-ray shielding member built in the first vertically long holding portion 15a, the length of the X-ray shielding member built in the first horizontally long holding portion 15c. The length is substantially the same as the length in the vertical direction (length in the longitudinal direction) of the large first imaging member 11a housed in the first cover 13a, the length in the horizontal direction of the first cover 13a, the first The horizontal length of the X-ray shielding member built in the vertically long holding portion 15a and the vertical length of the X-ray shielding member built in the first horizontally long holding portion 15c are larger than those accommodated in the first cover 13a. The length of the first imaging member 11a in the lateral direction (length in the short direction) is substantially the same.

  The length of the second cover 13b in the vertical direction, the length of the X-ray shielding member built in the second vertically long holding portion 15b, the length of the X-ray shielding member built in the second horizontally long holding portion 15d. The length is substantially the same as the length in the vertical direction (length in the longitudinal direction) of the small second imaging member 11b housed in the second cover 13b, the length in the horizontal direction of the second cover 13b, the second The horizontal length of the X-ray shielding member built in the vertically long holding portion 15b and the vertical length of the X-ray shielding member built in the second horizontally long holding portion 15d are smaller than those stored in the second cover 13b. It is substantially the same as the length in the lateral direction (length in the short direction) of the second imaging member 11b.

  In the present embodiment, two types of imaging members 11, two types of sizes of covers 13 corresponding to the two types of sizes of imaging members 11, and the two types of sizes of covers 13 are held vertically. In the above description, the four types of holding portions 15 corresponding to the horizontally long holding have been described. However, the imaging member 11 having three or more sizes and three or more types corresponding to the three or more sizes of the imaging member 11 are described. The cover 13 and the form in which five or more types of holding portions 15 corresponding to the vertically long holding and the horizontal long holding of the three or more types of the cover 13 may be prepared.

  The support portion 17 is fixed to a rotating shaft 53 described later, and has a shape (for example, a T-shaped cross section) in which the front surface engages with an engagement member (groove or shoe) provided on the back surface of the holding portion 15. The vertical length of the support portion 17 is set to be equal to or shorter than the vertical length of the second horizontally long holding portion 15d so that the upper portion does not protrude from the holding portion 15 when the holding portion 15 is attached.

  The grip 30 can be rotated around the rotation shaft 53 via a bearing portion 31 (a part of the retaining portion 55 also functions as a bearing of the rotation shaft 53) serving as a bearing for the rotation shaft 53, and a photographing auxiliary tool. 50.

  The grip 30 generates a high voltage based on the power supplied from the battery 39 and applies the high voltage to the X-ray tube. The high voltage generator 37, the high voltage generator 37, the first light emitting unit 56, and the second light emission. A battery 39 that supplies power to the unit 63 and the actuator 65, a control unit 51 that controls the angle sensor 54, the first light emitting unit 56, and the light emitting device changeover switch 61 are incorporated (see FIG. 2).

  When the imaging member 11 is a light receiving device including an X-ray imaging device, the battery 39 supplies power to the light receiving device, or an image signal obtained by the X-ray imaging device of the light receiving device is supplied to the grip. An image processing apparatus that performs processing may be incorporated.

  A first lock mechanism 33 that controls the rotatable state of the grip 30 around the rotation shaft 53 is provided in the grip 30 (or the retaining portion 55). When the locked state by the first lock mechanism 33 is released, the grip 30 is brought into a rotatable state around the rotation shaft 53. When locked by the first lock mechanism 33, the grip 30 is fixed to the retaining portion 55 in a non-rotatable state around the rotation shaft 53. Even if the first locking mechanism 33 is locked and the grip 30 is fixed to the retaining portion 55, the rotation operation around the rotation shaft 53 of the photographing unit 10 is not limited (see FIG. 5).

  For example, when viewed from the side, the support portion 17 (including the holding portion 15 attached to the support portion 17, the cover 13, and the imaging member 11) is above the retaining portion 55, and the grip 30 is below the retaining portion 55. When the grip 30 is fixed in such a positional relationship, the imaging member 11 can be easily positioned near the upper teeth, and the support portion 17 (the holding portion 15 attached to the support portion 17, the cover 13, or the imaging member) 11) and the grip 30 is fixed in a positional relationship such that the grip 30 is above the retaining portion 55, and the dental intraoral X-ray imaging apparatus 100 is turned upside down, the imaging member 11 is near the lower teeth. Easy to position.

  The grip 30 may be held by the subject or may be held by an operator such as a dentist. Since the imaging member 11 and the like are held by gripping the grip 30, it is not necessary to bite the retaining portion 55 for holding the imaging member 11 and the like, and shooting is performed with the mouth open. Is possible. For this reason, it becomes possible to maintain the imaging member 11 and the like in the oral cavity even when the subject cannot successfully bite. In addition, since the grip 30 holds the members other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 (the imaging member 11 and the imaging assisting tool 50 that holds the imaging member 11), the members are held by occlusion. Compared to the form, there is an advantage that holding can be easily performed even if the weight of the retaining portion 55 and the like is increased. In addition, since the grip 30 is separated from the imaging member 11, there is a merit that the hand holding the grip 30 is hardly affected by the radiation from the X-ray irradiation unit 70.

  Since the dental intraoral X-ray imaging apparatus 100 is held by holding the grip 30, the subject can take an image with the mouth open without biting. Since the mouth is open, light from a first light emitting unit 56, which will be described later, can be seen from inside the mouth, and is photographed with the imaging member 11 that is in the vicinity of the first light emitting unit 56 and attached to the support unit 17 via the cover 13 or the like. Position alignment (first alignment) with the target tooth can be easily performed.

  By changing the angle (second angle θ2) formed by the grip 30 and the retaining portion 55, the cover is placed in a positional relationship (holding position of the grip 30) that is convenient for the person holding the grip 30 (subject or operator). The imaging member 11 attached to the support portion 17 via 13 or the like can be easily inserted into an appropriate position in the oral cavity.

  Further, by moving the grip 30, the position of the rotation shaft 53 in the oral cavity changes, and accordingly, the imaging member 11 and the retaining part 55 attached to the support part 17 via the cover 13 or the like are moved to the palate or the like. The position in contact with the site in the oral cavity changes, and the angle (first angle θ1) formed by the imaging surface of the imaging member 11 and the retaining portion 55 also changes. Information about the first angle θ1 is shown in an angle display unit 57 provided outside the oral cavity as will be described later.

Further, as will be described later, information on the first angle θ1 is acquired and controlled by an angle sensor 54 provided in the vicinity of the support portion 17 (or inside the retaining portion 55, inside the support portion 17 and inside the bearing portion 31). The unit 51 controls the light emitting device changeover switch 61 based on the information about the first angle θ1 from the angle sensor 54, and power is supplied to any of the first light emitting device 63a to the fourth light emitting device 63d in the second light emitting unit 63. Supply.
The angle sensor 54 may be provided in the photographing unit 10.

  Further, the control unit 51 controls the actuator 65 based on the information about the first angle θ1 from the angle sensor 54, and moves the X-ray irradiation unit 70 including the X-ray tube to a predetermined position along the guide ring 59b. Let

  Accordingly, it is possible to freely change the direction of the normal of the imaging surface of the imaging member 11 attached to the support portion 17 via the cover 13 or the like with the grip 30 held. That is, when the user (operator or subject) holds the grip 30, the imaging member 11 is held in a state where the first angle θ1 can be adjusted.

  Although the imaging member 11 and the grip 30 attached to the support portion 17 via the cover 13 or the like are rotatable with respect to the retaining portion 55, the mechanism relating to the rotational motion is obtained by sharing the rotation shaft 53. Can be simplified. By simplifying, it becomes possible to easily hold the grip 30 correctly without breaking even a subject who is not familiar with it.

  In addition, the grip 30 has a smaller size limit than the imaging member 11 attached to the support portion 17 via the retaining portion 55, the cover 13, and the like, and secures a space for incorporating an electrical component such as the battery 39 inside. It's easy to do. Further, by collecting as much electrical parts as possible inside the grip 30, it becomes possible to reduce the members other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 (the imaging unit 10 and the imaging aid 50). When the grip 30 is gripped, it is possible to hold members (the imaging unit 10 and the imaging assisting tool 50) other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 in a stable state.

  In the present embodiment, the grip 30 has been described as being configured by a single rod-shaped member having a polygonal prism shape, but two or more rod-shaped members and a joint member such as a ball joint are the two or more rod-shaped members. The form which is provided between them and changes the shape of the grip 30 by changing the angle formed by the two or more rod-shaped members may be used. However, from the viewpoint of simplification of the structure including durability, it is constituted by an integral rod-like member without providing such a joint member, and only by a rotating operation around the rotation shaft 53 in the bearing portion 31 provided at the end portion. A form in which the positional relationship between the grip 30 and the retaining portion 55 is determined is desirable.

  The polygonal prism shape of the grip 30 may be a rounded corner so as to be easily gripped or a substantially cylindrical shape.

  Next, details of the photographing assisting tool 50 will be described. The photographing assisting tool 50 includes a rotation shaft 53, a retaining part (retaining substrate) 55, a first light emitting part 56, an angle display part 57, and a guide part 59.

  The support unit 17 of the imaging unit 10 is attached to the connection unit 53 a on the rotation shaft 53. The connection portion 53a is provided at a portion inserted into the oral cavity of the retaining portion 55 at the time of imaging using the X-ray irradiation unit 70 including the X-ray source LS, and an angle (first angle θ1) formed with the retaining portion 55. The support unit 17 of the photographing unit 10 is held in a state that can be changed. The support part 17 of the imaging part 10 is fixed to the connection part 53a by screwing or the like.

  The dimensions of these members are determined such that when the imaging unit 10 rotates around the rotation axis 53, the members constituting the imaging unit 10 such as the first vertically long holding unit 15a and the connection unit 53a do not interfere with the retaining unit 55. The

  The rotating shaft 53 is attached to the support portion 17 of the photographing unit 10 at one end portion via the connection portion 53a, the angle display portion 57 is attached to the other end portion, and the photographing portion 10 attached to the connection portion 53a. The rotational movement about the rotation shaft 53 is transmitted to the angle display unit 57 via the rotation shaft 53 and rotates the angle display unit 57. Similarly, the rotational movement about the rotation shaft 53 of the angle display unit 57 is transmitted to the imaging unit 10 attached to the connection unit 53 a via the rotation shaft 53 to rotate the imaging unit 10. Further, the urging force (see the arrow in FIG. 5) that the front side of the support portion 17 of the imaging unit 10 attached to the connection portion 53a (the side where the imaging surface of the imaging member 11 is located) approaches the upper surface of the retaining unit 55. The urging member (not shown) such as a spring is provided on the rotary shaft 53 or the like.

  In addition, the grip 30 is provided with a second lock mechanism 35 that controls the rotatable state of the photographing unit 10 around the rotation shaft 53. When locked by the second lock mechanism 35, the first angle θ <b> 1 does not change, and when the locked state by the second lock mechanism 35 is released, the imaging unit 10 rotates with an urging force. Since the grip 30 and the photographing unit 10 share the rotation shaft 53, it is possible to provide the grip 30 with a structure including an operation button interlocked with the second lock mechanism 35. The second lock mechanism 35 can easily adjust the positional relationship between the photographing unit 10 and the retaining unit 55.

  The retaining part 55 is a member having an L-shape when viewed from above, and the photographing part 10 is attached to one end (on the connection part 53a side) of the retaining part 55 via the rotating shaft 53, and the other end. A guide part 59 is attached to the part.

  In the state where the reamer is attached, the imaging target tooth cannot come into contact with the retaining portion 55. Therefore, in order to avoid the reamer at the position where the distal end of the imaging subject tooth in the retaining portion 55 approaches during imaging, It is desirable to provide a notch (or hole) 55a at a position facing the imaging target tooth.

  The 1st light emission part 56 has a light-emitting body attached to the position close | similar to the imaging | photography part 10 in the imaging | photography auxiliary tool 50, and lights up in the step before performing imaging | photography operation | movement. In this embodiment, it is provided in the notch portion 55a, and particularly provided at a position where the light emission state can be visually recognized from the lower surface (see FIG. 7), but may be provided on the back surface of the support portion 17.

  In the case where the upper tooth is a subject to be photographed, the user looks at the first light-emitting unit 56 that is lit and looks into the subject's mouth from below, and confirms that the photographing unit 10 is in the vicinity thereof. .

  When the lower teeth are set as the imaging target teeth, the user looks into the first light emitting unit 56 that is lit up and looks into the subject's mouth from above, and confirms that the imaging unit 10 is in the vicinity thereof. .

  When shooting with the imaging unit 10 or the like inserted into the oral cavity, the upper surface of the imaging assisting tool 50 and the surface of the imaging unit 10 are in a positional relationship facing the imaging target tooth, and are difficult to see from outside the oral cavity. Since the lower surface of the auxiliary tool 50 and the back surface of the support unit 17 of the imaging unit 10 are visible from the outside of the oral cavity, if some of these are lit, the imaging unit 10 is based on the lighting position. The positional relationship in the oral cavity can be predicted from outside the oral cavity. For this reason, it becomes easy to perform alignment (first alignment) between the imaging unit 10 and the imaging target tooth by confirming the position of the first light emitting unit 56 that is lit and easily visible.

  The periphery of the light emitter of the first light emitting unit 56 may be configured by a light guide member (for example, an acrylic plate) 56a. FIG. 7 shows an example in which the light guide member 56 a is provided around the light emitting body of the first light emitting unit 56 in a portion where the notch 55 a of the retaining unit 55 is provided. In this case, the light from the first light emitting unit 56 is also diffused from the light guide member 56a and the light emitting area is widened, so that it is easy to check the lighting position.

  The control of turning on and off the first light emitting unit 56 may be linked to an on / off operation of a main power switch (not shown) or the like (the first light emitting unit 56 is always lit when the main power is on). Alternatively, a lighting operation button 38 may be provided on the grip 30 for operating the lamp or the lamp (see FIGS. 2 and 5).

  In the present embodiment, when the first light emitting unit 56 and the second light emitting unit 63 are turned on by the operation of the lighting operation button 38, the first light emitting unit 56 is turned on, and the first light emitting unit 63 among the first light emitting units 63 is turned on. The light emitting device corresponding to the angle θ1 is turned on. When the first light emitting unit 56 and the second light emitting unit 63 are turned off by the operation of the lighting operation button 38, they are turned off.

  The on / off control of the actuator 65 may be linked to an on / off operation of a main power switch (not shown) (the actuator 65 always operates when the main power is on), or the operation of the lighting operation button 38 described above. It may be a form linked to the state.

  In the present embodiment, when the actuator 65 is turned on by the operation of the lighting operation button 38, the actuator 65 operates, and the X-ray irradiation unit 70 is located at a position corresponding to the information related to the first angle θ1 of the imaging unit 10. It can be moved.

  The angle display portion 57 is attached to a portion of the retaining portion 55 that is not inserted into the oral cavity so that it can be seen from outside the oral cavity even when the connection portion 53a is inserted into the oral cavity, and has a cylindrical shape. As the information related to the angle (first angle θ1, see FIG. 5) formed by the imaging unit 10 and the retaining unit 55 attached via the connecting portion 53a. A scale including a plurality of mark lines is attached.

  In the present embodiment, a mode in which information about the first angle θ1 is mechanically transmitted to the angle display unit 57 via the rotation shaft 53 will be described. However, the angle sensor 54 provided in the vicinity of the support unit 17 has the first angle. A form in which information related to θ1 is detected and electrically transmitted to the angle display unit 57 may be displayed.

  Based on the positional relationship between the scale of the angle display portion 57 and the retaining portion 55, that is, based on the reference line closest to the reference position (for example, the upper surface of the retaining portion 55), it is inserted into the oral cavity and cannot be seen (connection) It is possible to read information relating to an angle (first angle θ1) formed by the imaging unit 10 and the retaining unit 55 (attached to the unit 53a).

In the present embodiment, an electrical connection is provided between the guide portion 59 and the retaining portion 55, and the positioning mark of the positioning portion 59c is based on information on the first angle θ1 obtained by the angle sensor 54. (Any light emitter such as an LED provided in the first light-emitting device 63a to the fourth light-emitting device 63d) lights up.
In the present embodiment, the actuator 65 moves the X-ray irradiation unit 70 based on the information about the first angle θ1 obtained by the angle sensor 54, and the X-ray irradiation unit 70 is aligned (second alignment). Is done automatically.

  For this reason, the information regarding the first angle θ1 displayed on the angle display unit 57 is for confirmation, and the alignment (second alignment) between the X-ray irradiation unit 70 and the imaging unit 10 may be omitted even in an omitted form. ) Can be done.

  The guide part 59 includes a retaining part connection part 59a, a guide ring 59b, a positioning part 59c, and an actuator 65. The guide part 59 is attached to the retaining part 55 so that the guide ring 59b faces the imaging part 10 attached to the connection part 53a, and alignment of the irradiation port of the X-ray irradiation part 70 in X-ray imaging is performed. Used for (second alignment).

  The retaining portion connecting portion 59 a is a member that is attached to the end portion of the retaining portion 55 that is not inserted into the oral cavity during imaging using the X-ray irradiation unit 70.

  The guide ring 59b has a vertically long substantially oval shape (may be a substantially U shape with an open upper part in the upright state) when viewed from the connection portion 53a side, and is attached to the retaining portion connection portion 59a.

  The guide ring 59b passes through the center of the imaging surface of the imaging member 11 and is on the reference line LP perpendicular to the imaging surface when viewed from above the retaining portion 55, and is separated from the imaging surface by a first distance (200 mm). The X-ray irradiation unit 70 including the X-ray source LS is used to align (second alignment) so that the X-ray source LS is disposed at the position (see FIG. 12).

  A positioning portion 59c is provided on the side portion of the guide ring 59b. The positioning unit 59c is provided with a second light emitting unit 63 including a plurality of light emitting devices as information (a plurality of positioning marks) corresponding to the first angle θ1 (marking line of the scale of the angle display unit 57). In the present embodiment, four positioning marks, that is, four light emitting devices (first light emitting device 63a to fourth light emitting device 63d) are provided in the positioning portion 59c. However, the number of positioning marks (light emitting devices) Is not limited to this.

  Power is supplied to any one of the light emitting devices corresponding to the information related to the first angle θ1 via the light emitting device changeover switch 61, and the light emitting device that has received the power is turned on.

  In order to confirm with the information regarding the first angle θ1 indicated by the angle display unit 57, each of the light emitting devices of the second light emitting unit 63 is the same as or close to the mark line of the scale of the angle display unit 57 having a corresponding relationship. It is desirable to emit light in color.

  The on / off control of the second light emitting unit 63 is interlocked with an on / off operation of a main power switch (not shown) (any of the light emitting devices always corresponds to the first angle θ1 when the main power is on). The lighting operation button 38 for operating lighting or extinguishing may be provided on the grip 30 (see FIGS. 2 and 5).

  In the present embodiment, when the first light emitting unit 56 and the second light emitting unit 63 are turned on by turning on the lighting operation button 38, the light emitting devices corresponding to the first angle θ1 (the first light emitting devices 63a to 63a). Power is supplied to any one of the four light emitting devices 63d), and the light emitting device is turned on. By the turning-off operation of the lighting operation button 38, the first light emitting unit 56 and the second light emitting unit 63 are turned off (turns off).

  It is emitted from the X-ray source LS of the X-ray irradiation unit 70 installed in accordance with the positioning mark corresponding to the mark line closest to the reference position (for example, the upper surface of the retaining part 55) among the mark lines on the scale of the angle display part 57. The center axis LX of the X-ray bundle as viewed from the side of the retaining portion 55 and the surface including the imaging surface of the imaging member 11 and the tooth axis of the imaging target tooth (those forming a predetermined angle (perpendicular) with the retaining portion 55) A plurality of positioning marks (first light emitting device 63a to fourth light emitting device 63d) are provided in the positioning portion 59c so as to be substantially perpendicular to the bisection plane.

  That is, when the X-ray irradiation unit 70 is positioned according to the positioning mark corresponding to the information related to the first angle θ1 among the two or more positioning marks (the first light emitting device 63a to the fourth light emitting device 63d), The central axis LX of the X-ray bundle emitted from the X-ray source LS is substantially in a bisector between the surface including the imaging surface of the imaging member 11 and the tooth axis of the imaging target tooth as viewed from the measuring method of the retaining unit 55. Two or more positioning marks are provided on the positioning portion 59c so as to be vertical.

  When the first angle θ1 is small, that is, when the imaging surface of the imaging member 11 is almost parallel to the upper surface of the retaining portion 55, it corresponds to a positioning mark (first light emitting device 63a) away from the retaining portion 55. The mark line of the scale of the angle display unit 57 to be close to the reference position (see FIG. 3).

  When the first angle θ1 is large, that is, when the imaging surface of the imaging member 11 is close to the upper surface of the retaining portion 55, it corresponds to a positioning mark (fourth light emitting device 63d) near the retaining portion 55. The mark line of the scale of the angle display unit 57 is close to the reference position (see FIG. 4).

  The actuator 65 is a drive device that holds the X-ray irradiation unit 70 and moves the X-ray irradiation unit 70 to a predetermined position along the guide ring 59b in the held state.

  Specifically, the actuator 65 is configured so that the center axis LX of the X-ray bundle emitted from the X-ray source LS is a surface including the imaging surface of the imaging member 11 and the teeth of the imaging target tooth when viewed from the side of the retaining portion 55. Movement control is performed so that the X-ray irradiation unit 70 is held at a position that is substantially perpendicular to the bisecting plane with respect to the axis (a position corresponding to the information related to the first angle θ1).

  The movement control of the X-ray irradiation unit 70 by the actuator 65 is performed so that the user can easily recognize the completion of the second alignment by positioning the two or more positioning marks (the first light emitting device 63a to the fourth light emitting device 63d). It is performed to stop according to.

  The X-ray irradiation unit 70 may be held in a state of being fixed to the actuator 65, or may be held in a detachable state.

  When the first angle θ <b> 1 is small, that is, when the imaging surface of the imaging member 11 is nearly parallel to the upper surface of the retaining unit 55, the actuator 65 moves the X-ray irradiation unit 70 away from the retaining unit 55. Move (see FIG. 3).

  When the first angle θ1 is large, that is, when the imaging surface of the imaging member 11 is close to the upper surface of the retaining unit 55, the actuator 65 moves the X-ray irradiation unit 70 to a position closer to the retaining unit 55. (See FIG. 4).

  The X-ray irradiation unit 70 is an apparatus including an X-ray tube that irradiates X-rays from one X-ray source LS through an irradiation port, and is used when an X-ray image is obtained. The irradiation port of the X-ray irradiation unit 70 has a surface perpendicular to the central axis LX of the X-ray bundle emitted from the X-ray source LS.

  The high voltage generator 37 for applying a high voltage to the X-ray tube of the X-ray irradiation unit 70 may be incorporated in the X-ray irradiation unit 70, but at a position away from the grip 30 to be gripped. In order to reduce the weight of an X-ray irradiation unit 70, it is desirable that the X-ray irradiation unit 70 is built in the grip 30 and power is supplied from the grip 30 to the X-ray tube of the X-ray irradiation unit 70 via the high voltage cable 72.

  When the irradiation port of the X-ray irradiation unit 70 is arranged at a predetermined position of the guide ring 59b (a position corresponding to the positioning mark corresponding to the first angle θ1), the X-ray source LS is viewed from above. The guide ring 59b has a substantially arc shape when viewed from the side and a substantially linear shape when viewed from above so that the center axis LX of the emitted X-ray bundle passes through the center of the imaging surface of the imaging member 11. (See FIGS. 11 and 12).

  For this reason, the reference line LP that passes through the center of the imaging surface of the imaging member 11 and is perpendicular to the imaging surface when viewed from above the retaining portion 55 overlaps the central axis LX of the X-ray bundle emitted from the X-ray source LS. Due to the positional relationship, the irradiation port of the X-ray irradiation unit 70 is disposed in the vicinity of the guide ring 59b.

  Note that a linear index 73 parallel to the central axis LX when viewed from the side is provided on the side of the X-ray irradiation unit 70, and movement by the actuator 65 so that the index 73 and the positioning mark of the positioning unit 59c coincide with each other. When the control is performed, the completion of the alignment (second alignment) of the X-ray irradiation unit 70 can be easily confirmed.

  The stand 200 includes a base portion 81, a column 83 extending vertically from the base portion 81, a rotation holding portion 84 attached to an upper portion of the column 83 and holding an arm 85 in a state of being rotatable around the axis of the column 83, a rotation holding portion The arm 85 extends from the arm 84 in the horizontal direction, and the connecting member 87 extends from the arm 85.

  The connection member 87 is attached to the grip 30 or a portion that is not inserted into the oral cavity of the subject at the time of imaging, such as between the bearing portion 31 of the grip 30 and the retaining portion connecting portion 59a in the retaining portion 55.

  The connecting member 87 is twisted even when a member other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 (the imaging member 11 or the imaging assisting tool 50 holding the imaging member 11) is turned upside down. The connection member 87 is desirably attached to the side surface of the retaining portion 55 so as to be difficult.

  The connecting member 87 may be configured to be fixed to the dental intraoral X-ray imaging apparatus 100, or a hook-like first hooking member 87a such as a hook is provided at the tip of the connecting member 87, and the retaining portion 55 is provided. In such a mode, it is attached to the dental intraoral X-ray imaging apparatus 100 in a detachable state such as being hooked on a second hooking member 55c provided on the side surface between the bearing portion 31 of the grip 30 and the retaining portion connecting portion 59a. It may be.

  The connecting member 87 is made of an extendable member (such as an elastic member such as a spring), and the column 83 and the arm 85 are made of an extendable member so that the position of the grip 30 held by the subject can be freely changed. Is desirable.

  The dental intraoral X-ray imaging apparatus 100 (imaging unit 10, grip 30, imaging assisting tool 50, X-ray irradiation unit 70) is held without tilting the stand 200 without the subject holding the grip 30. As described above, it is desirable that the dimensions and weights of the members constituting each part of the stand 200 are determined.

  The dental intraoral X-ray imaging apparatus 100 (imaging unit 10, grip 30, imaging aid 50, X-ray irradiation unit 70) is held by the stand 200, so that a user (subject or subject) holding the grip 30 is held. It is possible to reduce the burden on the operator.

In addition, the form provided in the base part 81 may be sufficient as the high voltage generator 37 incorporated in the grip 30, and the battery which supplies electric power to the said high voltage generator 37.
In this case, the high voltage cable 72 connects the base part 81 and the X-ray irradiation part 70 (see FIG. 13).

  The grip 30 is reduced in weight compared to a configuration in which the high voltage generator 37 and the like are built in, the holding burden on the user (subject or operator) holding the grip 30 is reduced, and the dental intraoral X-ray imaging apparatus It is possible to make the stand 200 difficult to fall by the amount that the weight of the base portion 81 is increased by reducing the weight of the base 100.

  At the time of imaging using the X-ray irradiation unit 70, a part of the imaging unit 10 such as the imaging member 11 and the imaging aid 50 such as the connection unit 53a is inserted into the oral cavity of the subject, and the tooth axis of the imaging target tooth And the holding part 55 are held by the grip 30 in a state where the holding part 55 is at a predetermined angle (vertical). At this time, the angle display part 57 and the guide part 59 are located outside the oral cavity.

  Further, at the time of imaging, it is desirable that the waterproof cover 90 is covered with a portion (a part of the retaining unit 55, the imaging unit 10) inserted into the oral cavity of the subject of the dental intraoral X-ray imaging apparatus 100 (FIG. 14). reference). It is desirable that at least a portion of the waterproof cover 90 that covers the first light emitting unit 56 is made of a translucent material so that light from the first light emitting unit 56 is transmitted.

  In this case, in order to latch the waterproof cover 90, it is desirable that a hook-like cover latching member 55b such as a hook is provided on at least one of the retaining portion 55 and the grip 30.

  The waterproof cover 90 can prevent the test subject's saliva and the like from entering the connection portion 53a, and the waterproof cover 90 can be replaced by simply replacing the waterproof cover 90 without cleaning the retaining portion 55 and the imaging portion 10. There is an advantage that it can be used for the subject. By configuring the entire waterproof cover 90 or at least a portion of the waterproof cover 90 covering the first light emitting unit 56 with a translucent material, light from the first light emitting unit 56 can be confirmed through the waterproof cover 90.

Next, an operation procedure will be described.
The first imaging member 11a is inserted into the first cover 13a and the second imaging member 11b is inserted into the second cover 13b in a place where it is difficult for the user or the like to be exposed to light in a dark room.

In addition, the X-ray irradiation unit 70 is attached to the actuator 65, and the high voltage generator 37 of the grip 30 and the X-ray irradiation unit 70 are connected via a high voltage cable 72.
Further, the dental intraoral X-ray imaging apparatus 100 is attached to the stand 200 through the connection member 87.

  A user or the like selects either the first imaging member 11a or the second imaging member 11b as the imaging member 11 used for X-ray imaging in accordance with the size of the imaging target tooth (the size of the patient). By this selection, one of the first cover 13a and the second cover 13b is determined as the cover 13 used in the X-ray imaging.

  In addition, the user or the like selects whether to shoot in the portrait state or the landscape state according to the direction of photography, and selects the holding unit 15 used in the X-ray photography according to this. .

  For example, when it is desired to photograph adult teeth vertically, the first cover 13a in which the first imaging member 11a is inserted is mounted in the first vertically long holding portion 15a via a sandwiching member such as a clip in the vertically long state. The first vertically long holding portion 15a is attached to the support portion 17 (see FIGS. 7 to 9).

  If the child's teeth are to be photographed horizontally, the second cover 13b into which the second imaging member 11b is inserted is mounted in the second horizontally long holding portion 15d via a sandwiching member such as a clip in the horizontally long state. 2 The horizontally long holding portion 15d is attached to the support portion 17 (see FIG. 10).

  Note that either the attachment of the cover 13 to the holding portion 15 or the attachment of the holding portion 15 to the support portion 17 may be performed first.

  A part of the retaining unit 55, the photographing unit 10 attached to the retaining unit 55, and the like are covered with the waterproof cover 90. The waterproof cover 90 is latched to the cover latching member 55b so as not to be removed during photographing.

  After the waterproof cover 90 is latched, the portion including the imaging unit 10 of the dental intraoral X-ray imaging apparatus 100 is inserted into the oral cavity of the subject having the imaging target tooth. Prior to insertion, the grip 30 is held in a state in which the grip 30 and the retaining portion 55 (second angle θ2) are easily used by the user by the first lock mechanism 33 provided in the bearing portion 31. It is desirable to fix to.

  The user operates the lighting operation button 38 provided on the grip 30 to turn on the first light emitting unit 56 and the second light emitting unit 63 and watch the light of the first light emitting unit 56 through the waterproof cover. The user performs alignment (first alignment) between the imaging unit 10 and the imaging target tooth.

  The positional relationship between the imaging unit 10 and the retaining unit 55 in the oral cavity is determined based on the shape of the subject in the oral cavity, the position where the imaging unit 10 or the like is inserted, and the first angle θ1 is determined. When the second locking mechanism 35 is provided, the dental intraoral X-ray imaging apparatus 100 is in a locked state in which the imaging unit 10 and the retaining unit 55 are fixed in a widened state (a state where the first angle θ1 is small). When a part is inserted into the oral cavity and then the locked state of the second locking mechanism 35 is released and the imaging unit 10 comes into contact with the palate or the like, the positional relationship between the imaging unit 10 and the retaining unit 55 in the oral cavity is determined. To do.

  Of the first light-emitting device 63a to the fourth light-emitting device 63d of the second light-emitting unit 63, power is supplied to the light-emitting device corresponding to the first angle θ1 via the light-emitting device changeover switch 61. Light.

The actuator 65 moves the X-ray irradiation unit 70 to a predetermined position along the guide ring 59b (a position corresponding to information related to the first angle θ1) (second alignment).
The user confirms that the second alignment has been completed by seeing that the light-emitting device that is turned on and the X-ray irradiation unit 70 moved by the actuator 65 are in alignment.

  After the first alignment and the second alignment are completed, the user operates the lighting operation button 38 to turn off the first light emitting unit 56, the second light emitting unit 63, and the actuator 65, and the first light emitting unit. 56, the power supply to the second light emitting unit 63 and the actuator 65 is stopped. Thereby, the 1st light emission part 56 and the 2nd light emission part 63 are light-extinguished, and the X-ray irradiation part 70 stops in the position (position corresponding to the information regarding 1st angle (theta) 1) just before a power supply stop. Thereafter, an imaging operation is performed by performing a predetermined operation such as X-ray irradiation by the X-ray irradiation unit 70.

  Even if the lighting operation button 38 is turned off, the actuator 65 is not turned off while the main power switch is turned on, and the X-ray irradiation unit 70 is positioned immediately before the lighting operation button 38 is turned off (first state). The movement control may be performed so as to maintain the position at a position corresponding to the information related to the angle θ1.

After shooting, the main power switch is turned off, the waterproof cover 90 is unlatched, the cover 13 in which the imaging member 11 is stored is removed from the holding unit 15, and the imaging member 11 is taken out of the cover 13 in a dark room or the like. Development is performed.
When the imaging member 11 is a light receiving device such as an X-ray imaging device, it is not necessary to remove it from the cover 13, and image processing for displaying an X-ray image is performed in a wired or wirelessly connected image processing device. The

  If the imaging member 11 is stored in the cover 13 in a dark place in advance, the image capturing can be started immediately by attaching the cover 13 storing the imaging member 11 to the holding unit 15. .

  Since the X-ray shielding member is included in the holding portion 15 provided on the back side of the cover 13, it is not necessary to store the X-ray shielding member in the cover 13. Several combinations of the imaging member 11 and the cover 13 can be prepared without using more X-ray shielding members than necessary.

  The imaging member 11 can be easily inserted and removed from the cover 13 without touching any member other than the imaging member 11 such as an X-ray shielding member. Even when the X-ray shielding member is composed of harmful substances such as lead, the possibility of harming the health of the user can be reduced.

  Two or more types of the imaging member 11 and the cover 13 are prepared depending on the size, and four or more types of the holding unit 15 are prepared based on the size and direction.

  By providing a plurality of types of members (imaging member 11, cover 13 and holding unit 15) to be used, the size of the imaging member 11 and the lengthwise shooting and landscape shooting according to the size of the imaging target tooth, the shooting direction, etc. It is possible to select shooting at.

  If the X-ray irradiation unit 70 is moved to a position corresponding to the information related to the first angle θ1, that is, the irradiation port of the X-ray irradiation unit 70 is arranged so that the indicator 73 is aligned with the light emitting device that is lit. If this is the case, the central axis LX of the X-ray bundle emitted from the X-ray source LS of the X-ray irradiation unit 70 is the two of the surface including the imaging surface of the imaging member 11 and the tooth axis of the imaging target tooth as viewed from the side. The image can be made substantially perpendicular to the bisector, and an X-ray image of the photographic subject tooth can be obtained in a state close to the actual length by the bisector imaging method.

  In the present embodiment, the first alignment (alignment between the imaging member 11 and the imaging target tooth) is assisted by illumination of the first light emitting unit 56, and the second alignment (X-ray irradiation) is performed by driving control of the actuator 65. The user can easily and accurately obtain an X-ray image that is close to the actual length of the tooth to be imaged because the unit 70 is automatically adjusted to the position corresponding to the information related to the first angle θ1). become.

  In the present embodiment, in consideration of the bisection imaging method, that is, the central axis LX of the X-ray bundle is viewed from the side, the surface including the imaging surface of the imaging member 11 and the tooth axis of the imaging target tooth. The shape of the side portion of the guide ring 59b and the positioning mark (installation position of the light-emitting device) of the positioning portion 59c are determined so that the movement is controlled by the actuator 65. Although the embodiment has been described, it may be an embodiment in which these are determined or movement control is performed in consideration of other imaging methods.

  For example, the shape of the side portion of the guide ring 59b and the positioning mark of the positioning portion 59c are set so that the central axis LX of the X-ray bundle is substantially perpendicular to the surface including the imaging surface of the imaging member 11 when viewed from the side. A configuration in which (the installation position of the light emitting device) is determined and movement control by the actuator 65 is performed is conceivable.

  Further, in the present embodiment, the form in which the grip 30 is attached to the photographing auxiliary tool 50 in a state where the grip 30 can rotate around the rotation shaft 53 has been described. Since the structure of the rotation mechanism can be simplified by not changing the second angle θ2, it is possible to improve durability.

  In this case, it is desirable that the grip 30 has a first grip 30a extending upward and a second grip 30b extending downwardly of the L-shape constituting the retaining portion 55 (see FIG. 15). By grasping either the first grip 30a or the second grip 30b, members other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 (holding the imaging member 11 and the imaging member 11) can be held from above or below. The imaging auxiliary tool 50) can be held, and members other than the grip 30 of the dental intraoral X-ray imaging apparatus 100 (the imaging member 11 and the imaging auxiliary tool 50 holding the imaging member 11) are turned upside down. There is also an advantage that the holding can be maintained without changing the gripping posture. In particular, it is possible to select a grip to be gripped from the viewpoint of making the light of the first light emitting unit 56 easier to see.

  The first grip 30a and the second grip 30b have approximately the same size, for example, by incorporating a battery having substantially the same weight in both, or by incorporating a battery in one and the other having a member having substantially the same weight as the battery. It is desirable to have a sheath weight. For example, a configuration in which a battery 39 is built in the first grip 30a and a high voltage generator 37 is built in the second grip 30b is conceivable. In this case, it is easy to hold the dental intraoral X-ray imaging apparatus 100 in a well-balanced manner regardless of which of the first grip 30a and the second grip 30b is gripped.

  In the present embodiment, the power supply to the light emitting device corresponding to the first angle θ1 is described, and the power is not supplied to the other light emitting devices. However, the power supply control to the second light emitting unit 63 (first The lighting control corresponding to the angle θ1 and lighting control different from other light emitting devices) is not limited to this. For example, the power supply may be stopped only for the light emitting device corresponding to the first angle θ1, and the power may be supplied to other light emitting devices.

DESCRIPTION OF SYMBOLS 1 Dental intraoral X-ray imaging system 10 Imaging part 11 Imaging member 11a, 11b 1st imaging member, 2nd imaging member 13 Cover 13a, 13b 1st cover, 2nd cover 15 Holding part 15a, 15b 1st vertically long holding part , Second vertical holding portion 15c, 15d first horizontal holding portion, second horizontal holding portion 17 support portion 30 grip 31 bearing portion 33 first lock mechanism 35 second lock mechanism 37 high voltage generator 38 lighting operation button 39 battery 50 Imaging aid 51 Control part 53 Rotating shaft 53a Connection part 54 Angle sensor 55 Holding part 55a Notch part 55b Cover latching member 55c Second latching member 56 First light emitting part 56a Light guide member 57 Angle display part 59 Guide part 59a Part connection part 59b guide ring 59c positioning part 61 light emitting device changeover switch 63 second Light part 63a-63d 1st light-emitting device-4th light-emitting device 65 Actuator 70 X-ray irradiation part 72 High voltage cable 73 Index 81 Base part 83 Pillar 84 Rotation holding part 85 Arm 87 Connection member 87a 1st latching member 90 Waterproof cover 100 Dental intraoral X-ray imaging apparatus 200 Stand LP A line that passes through the center of the imaging surface of the X-ray receiving unit and is perpendicular to the imaging surface as viewed from above LS X-ray source LX Central axis θ1 First angle θ2 Second angle

Claims (6)

An imaging unit having an imaging member having any one of an imaging plate, an X-ray film, and an X-ray imaging device;
An X-ray irradiation unit;
An imaging having a holding unit that holds the imaging unit in a rotatable state, and a guide unit that is connected to the holding unit and is provided at a position facing the imaging member and used for alignment of the X-ray irradiation unit. With aids,
The photographing auxiliary tool or the photographing unit includes an angle sensor that acquires information about an angle formed by the photographing unit and the retaining unit,
The guide unit includes an actuator that holds the X-ray irradiation unit and moves the X-ray irradiation unit,
The dental intraoral X-ray imaging apparatus, wherein the movement control of the X-ray irradiation unit by the actuator is performed based on information on the angle obtained by the angle sensor. A grip for holding the retaining portion;
2. The dental intraoral X-ray imaging apparatus according to claim 1, wherein the grip includes a high-voltage generator that supplies power to the X-ray irradiation unit. The guide portion has a plurality of light emitting devices on a side portion,
Each of the plurality of light emitting devices is provided at a position where the X-ray irradiation unit is moved by the actuator,
Among the plurality of light emitting devices, one provided at a position corresponding to the information on the angle obtained by the angle sensor is controlled to be turned on differently from the rest of the plurality of light emitting devices. Item 2. The dental intraoral X-ray imaging apparatus according to Item 1. An imaging unit having an imaging member having any one of an imaging plate, an X-ray film, and an X-ray imaging device;
An X-ray irradiation unit;
An imaging having a holding unit that holds the imaging unit in a rotatable state, and a guide unit that is connected to the holding unit and is provided at a position facing the imaging member and used for alignment of the X-ray irradiation unit. With aids,
A grip for holding the retaining portion;
The photographing auxiliary tool or the photographing unit includes an angle sensor that acquires information about an angle formed by the photographing unit and the retaining unit,
The guide unit includes an actuator that holds the X-ray irradiation unit and moves the X-ray irradiation unit,
The movement control of the X-ray irradiation unit by the actuator is performed based on information on the angle obtained by the angle sensor,
A base portion, a column extending vertically from the base portion, a rotation holding portion attached to an upper portion of the column and holding an arm in a state of being rotatable around an axis of the column, and horizontally extending from the rotation holding portion. A stand having the arm extending from the arm and a connecting member extending from the arm;
The dental intraoral X-ray imaging system, wherein the connecting member is connected to the retaining part or the grip. At least one of the pillar, the arm, and the connection member is configured by an extendable member,
The dental intraoral X-ray imaging system according to claim 4, wherein the connection member is detachably connected to a side surface of the retaining portion. The dental intraoral X-ray imaging system according to claim 4, wherein the stand is provided with a high voltage generator for supplying electric power to the X-ray irradiation unit.

Images