JP2018061723A - Intraoral x-ray imaging aid and intraoral x-ray imaging tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intraoral X-ray imaging aid and an intraoral X-ray imaging tool in which a photoreceptor can easily be arranged at a patient's mouth, and further radiation exposure other than an imaging object region can be prevented.SOLUTION: An intraoral X-ray imaging aid has a mouth arrangement part 2, a grip part 6 and a linear arm part 4. The mouth arrangement part 2 and the grip part 6 are connected by the arm part 4. The mouth arrangement part 2 is formed of materials for attenuating X-rays. The mouth arrangement part 2 has a size being equal to an imaging plate. The mouth arrangement part 2 can hold a protective cover 7 in the mouth. When making the mouth arrangement part 2 hold the protective cover 7, the imaging plate and the mouth arrangement part 2 are overlapped in the direction of travel of the X-rays.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an intraoral X-ray imaging auxiliary tool for holding an X-ray imaging photoreceptor used for intraoral X-ray imaging in a patient's mouth, and an intraoral X-ray imaging tool. .

  As a measure for diagnosing caries, periodontal disease, etc., X-ray photography of the mouth is widely performed. One of the methods for X-ray imaging of the mouth is the mouth method. The intraoral method is a general term for measures for putting a photoconductor in the mouth and exposing the photoconductor by irradiating X-rays from the outside. The photoreceptor inserted in the mouth is packaged with a light-shielding film that transmits X-rays and blocks sunlight and the like, and is mounted in the mouth. After the photographing, the packaging is removed and the photoreceptor is taken out.

  In recent years, an imaging plate for X-ray photography is often used as this photoreceptor. The imaging plate is a photoconductor that can record an X-rayed image digitally and can be reused.

  An imaging plate used in the intraoral method is a member formed by applying a material that emits fluorescence when irradiated with a laser beam after receiving X-rays to a plastic substrate (organic film). That is, as shown in FIG. 4A, the imaging plate 11 has a photosensitive surface 11a that is sensitive to X-rays. Image data is recorded in digital form on the photosensitive surface 11a. The photosensitive surface 11 a is provided only on one side of the imaging plate 11.

As shown in FIG. 4A, the imaging plate 11 has a substantially rectangular thin plate shape. The corner portion of the imaging plate 11 is chamfered (R-processed) in an arc shape.
The imaging plate 11 is a thin plate-like member and is easy to arrange in the mouth.
That is, the imaging plate 11 is a thin plate-like member having no wiring like the photoreceptor film (X-ray film) and is not bulky in the mouth. Therefore, there is an advantage that it is difficult to give pain to the patient.

By the way, since the imaging plate 11 is placed in the mouth of a patient, saliva adheres to it and is used in an unsanitary environment.
Therefore, the present applicant has filed a patent application for a protective cover that accommodates the imaging plate 11, and this patent application is disclosed in Patent Document 1.

  As shown in FIGS. 4B and 4C, the protective cover 7 disclosed in Patent Document 1 includes an interior member 8 and an exterior member 9.

The interior member 8 includes a front side sheet 16 and a back side sheet 17. The front side sheet | seat 16 permeate | transmits light and can visually recognize the inside of the accommodating part 12 mentioned later. The back sheet 17 has a light shielding function. The front side sheet 16 and the back side sheet 17 are thin, substantially rectangular sheet members that are easily deformed when pressed.
A housing portion 12 is formed between the front sheet 16 and the back sheet 17. The accommodating part 12 is a space closed on three sides. The accommodating portion 12 communicates with the outside via the opening 18. The width dimension in the accommodating portion 12 is set to a size that can just accommodate the imaging plate 11.

  The exterior member 9 includes a front side sheet 26 made of the same material as the interior member 8 and a back side sheet 27. The front side sheet | seat 26 permeate | transmits light and can visually recognize the inside of the accommodating part 15 mentioned later. The back sheet 27 has a light shielding function. The front sheet 26 and the back sheet 27 are thin, substantially rectangular sheet members that are easily deformed when pressed. Three sides of the front sheet 26 are welded to three sides of the back sheet 27, and an opening 28 is formed on the other one side.

  The four corners of the interior member 8 and the exterior member 9 are rounded in an arc shape in accordance with the shape of the imaging plate 11.

The imaging plate 11 shown in FIG. 4A is accommodated in the accommodating portion 12 of the interior member 8 from the opening 18 of the interior member 8 shown in FIG. 4B (FIG. 5). The photosensitive surface 11a of the imaging plate 11 is on the back sheet 17 side having a light shielding function.
The interior member 8 that accommodates the imaging plate 11 is accommodated in the accommodating portion 15 of the exterior member 9 from the opening 28 of the exterior member 9 (FIG. 6).
The photosensitive surface 11a of the imaging plate 11 is on the back sheet 27 side of the exterior member 9 having a light shielding function. Therefore, the photosensitive surface 11 a of the imaging plate 11 is covered and shielded by the backside sheets 17 and 27 having the light shielding function of the interior member 8 and the exterior member 9.

The imaging plate 11 is double protected by the interior member 8 and the exterior member 9 in the mouth, and is taken out from the mouth after X-ray imaging, and only the interior member 8 is taken out from the exterior member 9 as shown in FIG. . As a result, the imaging plate 11 remains in the exterior member 9.
Since there is a clearance between the exterior member 9 and the imaging plate 11 and the imaging plate 11 can move smoothly within the exterior member 9, the opening 28 is lowered below as shown in FIGS. 8 (a) and 8 (b). On the side, the imaging plate 11 can be easily removed by dropping the imaging plate 11 from the exterior member 9.

That is, the operator can take out the imaging plate 11 without touching the imaging plate 11 from the protective cover 7 to which the saliva is attached.
Therefore, the imaging plate 11 does not adhere to saliva and maintains a clean state, and can be reused without being washed.

JP, 2015-047394, A

By the way, in the configuration disclosed in Patent Document 1, it is necessary for a patient such as a patient, a photographer, or a photographing assistant to press and hold the imaging plate 11 with a finger against a photographing position in the mouth. Therefore, there is a problem that saliva adheres to the finger or the finger is exposed to X-rays.
Therefore, when the imaging plate 11 is held in the mouth with a holder (not shown) disclosed in Patent Document 1, saliva does not adhere to the finger or the finger is not exposed to X-rays. X-ray exposure of the part is inevitable.
Further, in order to fix the position of the imaging plate 11 with the holder, it is necessary for the patient himself to bite the holder with the upper and lower teeth. Therefore, it is difficult to use the holder for patients with few healthy teeth.

  Therefore, the present invention can easily place a photoconductor in a patient's mouth, and can further suppress exposure other than the region to be imaged, and an intraoral X-ray imaging auxiliary tool and intraoral X-ray imaging. The challenge is to provide ingredients.

  An invention according to claim 1 for solving the above-mentioned problem is an assisting device for intraoral X-ray imaging for holding a photoconductor for intraoral X-ray imaging in the mouth, wherein the intraoral arrangement portion and the gripping portion The in-mouth arrangement part and the grip part are connected by the arm part, and the in-mouth arrangement part has a plane part occupying the same area as the photoconductor, and the photoconductor In a state where the photoconductor is detachable from the plane portion of the intraoral placement portion and the photoconductor is held in the intraoral placement portion. In the mouth X-ray radiography assisting tool, wherein the photosensitive member is in a positional relationship facing the flat portion of the mouth arrangement portion.

According to the first aspect of the present invention, since the mouth placement portion and the grip portion are connected by the arm portion, the position of the mouth placement portion can be changed by operating the grip portion.
That is, a patient or a person who is involved in X-ray imaging has a grip portion, and the mouth placement portion is placed in the patient's mouth, and the position of the mouth placement portion in the mouth can be changed or finely adjusted by operating the grip portion. . Therefore, the photosensitive member held in the mouth placement portion is easily placed at an appropriate position in the mouth. Therefore, it is not necessary to hold the photosensitive member with a finger, and it is not necessary to expose the finger of a person engaged in X-ray imaging such as a patient or a photographer.
Further, when the intraoral placement portion is placed in the mouth, the patient only needs to open the mouth and does not need to bite the arm portion or the like. That is, the patient does not need to put effort and can perform X-ray photography with an easy posture.
The intraoral placement portion has a flat portion that occupies the same area as the photoconductor, and the photoconductor is attached to and held on the flat portion of the intraoral placement portion, so that the holding of the photoconductor is stable.
Furthermore, since the photoconductor is detachable from the flat portion of the mouth-arranged portion, the photoconductor can be easily detached from the flat portion after X-ray imaging.
In a state where the photoconductor is held in the intraoral placement portion, the photoconductor is in a positional relationship facing the flat portion of the intraoral placement portion, so that the photoconductor and the flat portion overlap each other. Therefore, the flat portion is not bulky in the mouth.
Here, the equivalent area is an area sufficient to stably hold the photoconductor, and may be larger or smaller than the photoconductor. The area of the planar portion can be 60% to 200% of the area of the photoconductor, preferably 80% to 150%, and more preferably 90% to 110%.
That is, if the area of the flat portion is too large, it is difficult to place it in the mouth, and if it is too small, the holding of the photoreceptor is not stable. For this reason, it is most desirable that the area of the flat portion is, for example, about plus or minus 10% with respect to the area of the photoreceptor.
In addition, the outer shape of the planar portion and the photoconductor is preferably similar, but is not necessarily similar. In other words, the outer shape of the photoreceptor and the outer shape of the planar portion may be different if there is no problem in X-ray imaging.
Furthermore, the plane portion may have an opening or a notch. For example, the plane portion may be a frame shape and there may be a large opening in the center portion.

  The invention described in claim 2 is the intraoral X-ray imaging auxiliary tool according to claim 1, wherein the intraoral placement portion is formed of a material that attenuates X-rays.

Since the photoconductor is in a positional relationship facing the intraoral arrangement portion, the photoconductor and the intraoral arrangement portion overlap in the X-ray traveling direction. Therefore, the X-rays irradiated toward the patient's mouth pass through the region to be imaged and the photoconductor, and reach the plane portion of the mouth placement portion.
According to the second aspect of the present invention, since the intraoral placement portion is formed of a material that attenuates X-rays, the X-ray transmitted through the photosensitive member is attenuated by the intraoral placement portion. Therefore, the exposure dose in the patient's mouth is reduced.
Therefore, the patient can suppress the exposure dose of parts other than the X-ray imaging target part.

  The invention according to claim 3 is characterized in that the intraoral placement portion is connected to the arm portion in a posture inclined with respect to the axis of the gripping portion or the axis of the arm portion. The assisting device for intraoral X-ray photography described in 1.

In the invention according to claim 3, since the intraoral placement part is connected to the arm part in a posture inclined with respect to the axis of the grasping part or the axis of the arm part, the patient is placed in the state where the mouth placement part is placed in the mouth. The grip portion can be gripped easily.
The inclination angle of the intraoral arrangement portion with respect to the axis of the gripping portion or the axis of the arm portion can be, for example, an angle between 10 degrees and 45 degrees, and is preferably between 20 degrees and 35 degrees.

  According to a fourth aspect of the present invention, there is provided an inner bag that accommodates the photoreceptor and an outer bag that accommodates the inner bag, and the mouth arrangement portion is disposed in the outer bag. Item 4. An assisting device for intraoral X-ray imaging according to any one of Items 1 to 3.

  In the invention according to claim 4, since there is an inner bag for accommodating the photoconductor and an outer bag for accommodating the inner bag, and the mouth placement portion is placed in the outer bag, the mouth placement portion in the outer bag. And the photoconductor are close to each other. That is, the X-rays that have passed through the photoconductor easily reach the intraoral area and are reliably attenuated at the intraoral area. Moreover, the outer bag can be easily attached to and detached from the mouth-arranged portion. That is, the photosensitive member can be easily attached to and detached from the intraoral arrangement portion.

  The invention described in claim 5 is characterized in that the photosensitive member held in the mouth-arranged portion is accommodated in a flexible bag member that maintains liquid tightness. The assisting device for intraoral X-ray photography described in 1.

According to the fifth aspect of the present invention, since the photosensitive member held in the mouth placement portion is housed in a flexible bag member that is kept liquid-tight, when the mouth placement portion is placed in the patient's mouth, the mouth placement is performed. The flexible bag member is appropriately deformed along the shape of the head, the arm, and the shape of the patient's mouth. Since the bag member is interposed between the patient's mouth, the mouth-arranged portion, and the photoreceptor, saliva does not adhere to the mouth-arranged portion and the photoreceptor.
That is, the assisting tool for intraoral X-ray imaging and the photoconductor are kept clean and can be reused without being washed.

  The invention described in claim 6 is an intraoral X-ray imaging tool comprising a photoconductor for intraoral X-ray imaging and an auxiliary tool for intraoral X-ray imaging that holds the photoconductor in the mouth, The auxiliary tool for X-ray radiography has a mouth placement portion, a grip portion, and an arm portion, and the mouth placement portion and the grip portion are connected by the arm portion, and the mouth placement portion is equivalent to the photoconductor. The photosensitive member is attached to and held by the planar portion of the intraoral placement portion, and the photosensitive member is detachable from the planar portion of the intraoral placement portion. The intraoral X-ray imaging tool is characterized in that, in a state where the photoconductor is held in the intraoral placement portion, the photoconductor is in a positional relationship facing the flat portion of the intraoral placement portion.

According to the sixth aspect of the present invention, since the mouth placement portion and the grip portion are connected by the arm portion, the position of the mouth placement portion can be changed by operating the grip portion.
A patient or a person who is involved in X-ray imaging has a grip portion, and the position of the mouth placement portion in the mouth can be changed or finely adjusted by placing the mouth placement portion in the patient's mouth and operating the grip portion. Therefore, the photosensitive member held in the mouth placement portion is easily placed at an appropriate position in the mouth. Therefore, it is not necessary to hold the photosensitive member with a finger, and it is not necessary to expose the finger of a person engaged in X-ray imaging such as a patient or a photographer.
Further, when the intraoral placement portion is placed in the mouth, the patient only needs to open the mouth and does not need to bite the arm portion or the like. That is, the patient does not need to put effort and can perform X-ray photography with an easy posture.
The intraoral placement portion has a flat portion that occupies the same area as the photoconductor, and the photoconductor is mounted and held on the flat portion of the intraoral placement portion, so that the holding of the photoconductor is stable.
Furthermore, since the photoconductor is detachable from the flat portion of the mouth-arranged portion, the photoconductor can be easily detached from the flat portion after X-ray imaging.
In a state where the photoconductor is held in the intraoral placement portion, the photoconductor is in a positional relationship facing the flat portion of the intraoral placement portion, so that the photoconductor and the flat portion overlap each other. Therefore, the flat portion is not bulky in the mouth.
Here, the equivalent area is an area sufficient to stably hold the photoconductor, and may be larger or smaller than the photoconductor. The area of the planar portion can be 60% to 200% of the area of the photoconductor, preferably 80% to 150%, and more preferably 90% to 110%.
That is, if the area of the flat portion is too large, it is difficult to place it in the mouth, and if it is too small, the holding of the photoreceptor is not stable. For this reason, it is most desirable that the area of the flat portion is, for example, about plus or minus 10% with respect to the area of the photoreceptor.
In addition, the outer shape of the planar portion and the photoconductor is preferably similar, but is not necessarily similar. In other words, the outer shape of the photoreceptor and the outer shape of the planar portion may be different if there is no problem in X-ray imaging.
Furthermore, the plane portion may have an opening or a notch. For example, the plane portion may be a frame shape and there may be a large opening in the center portion.

  The intraoral X-ray imaging auxiliary tool and the intraoral X-ray imaging tool of the present invention can stabilize the holding of the photoreceptor in the patient's mouth. Further, since it is not necessary to hold the photosensitive member with a finger, a situation where the finger is exposed can be avoided. When placing the intraoral placement portion holding the photoreceptor in the mouth, the patient only needs to open the mouth and does not need to bite the arm portion or the like. That is, the patient does not need to put effort and can perform X-ray photography with an easy posture.

It is a perspective view of the auxiliary tool for intraoral X-ray photography which concerns on embodiment of this invention, and shows the state which mounted | wore the intraoral arrangement | positioning part with the protective cover. It is a perspective view which shows the state which removed the protective cover from the auxiliary tool for intraoral X-ray photography of FIG. It is a front view of the auxiliary tool for intraoral X-ray photography of FIG. (A) is a front view of an imaging plate, (b) is a front view of an interior member, and (c) is a front view of an exterior member. It is a front view of the interior member which accommodated the imaging plate. It is a front view of the protective cover which accommodated the imaging plate. It is a front view which shows the state in the middle of accommodating the interior member which accommodated the imaging plate in an exterior member. (A) is the front view which shows the state in the middle of dropping the imaging plate with the opening of the exterior member in which the imaging plate is left facing downward, and (b) is the imaging plate dropped from the exterior member It is a front view which shows a state. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the auxiliary tool for intraoral radiography of FIG. 1 in a patient's mouth, and shows the state in which the intraoral arrangement | positioning part is arrange | positioned along the molar of the right lower jaw. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the assisting tool for intraoral X-ray imaging of FIG. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the auxiliary tool for intraoral radiography of FIG. 1 in the patient's mouth, and shows the state in which the intraoral arrangement | positioning part is arrange | positioned along the molar of the left lower jaw. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the auxiliary tool for intraoral X-ray photography of FIG. 1 in the patient's mouth, and shows the state in which the intraoral arrangement | positioning part is arrange | positioned along the molar of the left upper jaw. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the auxiliary tool for intraoral X-ray imaging of FIG. 1 in the patient's mouth, and shows the state in which the intraoral arrangement | positioning part is arrange | positioned along the mandibular central incisor. It is explanatory drawing which shows the state which has arrange | positioned the intraoral arrangement | positioning part of the auxiliary tool for intraoral radiography of FIG. 1 in the patient's mouth, and shows the state in which the intraoral arrangement | positioning part is arrange | positioned along the maxillary central incisor. (A) is a perspective view of the protective cover different from FIG. 1, (b) is a perspective view which shows the state which hold | maintained the protective cover of (a) with the assisting tool for intraoral X-ray photography. (A) is a perspective view of a protective cover different from FIGS. 1 and 15, and (b) is a perspective view showing a state in which the protective cover of (a) is held by an auxiliary tool for intraoral X-ray photography. It is. It is a perspective view which shows the state in which the intraoral arrangement | positioning part equipped with the protective cover of FIG. 1 is accommodated in the flexible bag member. (A), (b) is a perspective view which shows the modification of the auxiliary tool for intraoral X-ray imaging shown in FIG. 1, respectively. (A), (b) is a front view which shows the modification of the intraoral arrangement | positioning part shown in FIG. 3, respectively, (c) is a perspective view which shows the modification of the intraoral arrangement | positioning part shown in FIG. FIG. 2 is a perspective view showing a state in which a protective cover is attached with the orientation of the surface of the intraoral placement portion reversed in the intraoral X-ray imaging aid of FIG. 1.

  Hereinafter, an intraoral X-ray imaging auxiliary tool 1 (hereinafter simply referred to as auxiliary tool 1) according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the imaging plate 11 (photosensitive member) and the protective cover 7 described in the section of the related art are used. Therefore, the overlapping description is omitted here.

  The auxiliary tool 1 and the protective cover 7 that houses the imaging plate 11 constitute an intraoral X-ray imaging tool. That is, intraoral X-ray imaging is performed using this intraoral X-ray imaging tool and an X-ray irradiation apparatus (not shown). Hereinafter, the auxiliary tool 1 will be described.

  As shown in FIGS. 1 and 2, the auxiliary tool 1 includes an intraoral placement portion 2, an arm portion 4, and a grip portion 6.

  The intraoral placement portion 2 is a portion that is placed in the patient's mouth and is a thin plate-like portion having a thickness in the direction of arrow T, and has an area equivalent to that of the imaging plate 11 (photosensitive member) shown in FIG. 2b (FIG. 2). That is, the size (shape and area) of the intraoral arrangement portion 2 is approximately the same as the size (shape and area) of the imaging plate 11.

  The plane portion 2b is a portion having a substantially rectangular outer shape having a width in the arrow W direction and a length in the arrow L direction, and is formed of a material that attenuates the amount of X-ray transmission. The corners of the rectangle are chamfered, and each side of the rectangle is smoothly connected by an arc.

  Further, the width dimension (the vertical dimension as viewed in FIG. 1) of the intraoral placement portion 2 is just within the housing portion 15 from the opening 28 of the exterior member 9 of the protective cover 7 shown in FIG. It is large enough to be inserted. One end of the arm portion 4 is connected to one rectangular corner portion of the intraoral placement portion 2.

  The arm portion 4 is a portion that is arranged from the inside of the patient's mouth to the outside of the mouth, and is an elongated linear portion having a small thickness dimension and a small width dimension. That is, the arm part 4 is a site | part with a small cross-sectional area.

  The arm portion 4 is provided with an intraoral placement portion 2 on one end side, and a grip portion constituting portion 3 described later which is a part of the grip portion 6 is provided on the other end side. In the present embodiment, the intraoral placement portion 2, the arm portion 4, and the gripping portion constituting portion 3 are continuous and are integrally formed of a material (for example, stainless steel) that suppresses X-ray transmission. When stainless steel is used, the thickness of the portion 2 in the mouth is 2 mm. That is, in the present embodiment, the amount of X-ray transmission is reduced by configuring the intraoral disposition portion 2 with 2 mm thick stainless steel.

The grasping part 6 is a part arranged outside the patient's mouth, and has the grasping part constituting part 3 and the reinforcing member 5.
The grip part constituting part 3 constitutes the main body of the grip part 6 and is a part continuous with the other end side of the arm part 4 as described above. Further, the gripping portion constituting portion 3 is a portion having a width dimension larger than that of the arm portion 4.
The reinforcing member 5 is a rigid member, and is fixed to both sides of the gripping portion constituting portion 3 by fixing means such as screwing or adhesion. That is, the reinforcing member 5 is a member that reinforces the grip portion constituting portion 3.

  The gripping part 6 having the gripping part constituting part 3 and the reinforcing member 5 is a part having a large width dimension and thickness dimension, and is a part that is easy to grip. For example, the reinforcing member 5 has a plate shape, and by arranging the reinforcing members 5 on both sides of the gripping portion constituting portion 3, the entire gripping portion 6 has a thickness dimension that is easy to grip. That is, the thickness dimension of the reinforcing member 5 is, for example, 4 to 6 mm, and the thickness dimension of the grip portion constituting unit 3 is 2 to 3 mm. Therefore, the thickness dimension of the entire gripping part 6 is about 10 to 15 mm. If the thickness and width of the gripping part 6 are about 10 to 20 mm, it is easy to grip. Moreover, the holding part 6 has a length of about 100 mm to 150 mm.

  In the auxiliary tool 1, the mouth arrangement part 2, the arm part 4, and the grip part constituting part 3 are in the same plane, and as shown in FIG. 3 which is a front view, the axis 10 of the arm part 4 and the grip part 6 is located in the mouth. The part 2 is connected with an inclination angle A of 30 degrees with respect to one side 2a of the rectangle. Here, the inclination angle A of the arm portion 4 with respect to the one side 2a of the mouth-arranged portion 2 is preferably in the range of 10 to 45 degrees, more preferably in the range of 20 to 35 degrees.

  As shown in FIG. 3, the width of the arm part 4 and the grip part constituting part 3 is different, but the center in the width direction of the arm part 4 and the center in the width direction of the grip part constituting part 3 are straight. It is arranged on the line. That is, the arm portion 4 is on an extension line of the grip portion constituting portion 3 (the grip portion 6). In other words, the axis 10 coincides with the center of the gripping part constituting unit 3 and the center of the arm part 4.

  Next, the form which hold | maintains the protective cover 7 with the auxiliary tool 1 and arrange | positions the imaging plate 11 in a patient's mouth is demonstrated. In the present embodiment, the imaging plate 11 and the protective cover 7 described in the related art are used. Therefore, the overlapping description regarding the imaging plate 11 and the protective cover 7 is omitted here.

  As described above, the imaging plate 11 is accommodated in the protective cover 7, and the mouth placement portion 2 (planar portion 2 b) of the auxiliary tool 1 is inserted into the accommodating portion 15 from the opening 28 of the exterior member 9 of the protective cover 7. To do.

  Three sides other than the opening 28 are closed around the accommodating portion 15, and the width dimension in the arrow W direction (FIG. 1) of the intraoral placement portion 2 is approximately the same as the width dimension in the accommodating portion 15. The interior member 8 and the mouth arrangement part 2 can be accommodated in the interior. That is, a slight resistance is generated when the mouth placement portion 2 is taken out from the housing portion 15, and the protective cover 7 does not fall from the mouth placement portion 2 even if the opening 28 faces upward. Therefore, the holding of the protective cover 7 by the auxiliary tool 1 is stable.

  Moreover, the intraoral arrangement | positioning part 2 (plane part 2b) and the imaging plate 11 are exhibiting the same rectangular shape, and it has the positional relationship which both oppose. That is, both overlap and the plane part 2b is not bulky in the mouth. The flat portion 2b has an area equivalent to that of the imaging plate 11.

  Furthermore, the axis 10 of the intraoral arrangement part 2 (one side 2a) and the arm part 4 (gripping part 6) is inclined at an inclination angle A of 30 degrees (FIG. 3). Therefore, as shown in FIG. 9 to FIG. 14, the orientation and posture of the gripping part 6 are changed for each part to be imaged in the mouth, and the patient, the photographer, or the person handling the auxiliary tool 1 as the imaging assistant is the most. The grip part 6 is gripped with an easy posture.

Since the intraoral placement portion 2 and the grip portion 6 are connected by the arm portion 4, the position of the mouth placement portion 2 can be changed by operating the grip portion 6. That is, a patient or a person who is involved in X-ray photography has the grip 6, places the mouth placement part 2 in the patient's mouth, and operates the grip part 6 to change or fine-tune the position of the mouth placement part 2 in the mouth. can do. Therefore, the imaging plate 11 held by the intraoral placement unit 2 is easily placed at an appropriate position in the mouth.
Since the axis 10 of the gripping part 6 and the arm part 4 and the intraoral placement part 2 (one side 2a) are inclined at the inclination angle A, the patient can easily grip the gripping part 6 with any tooth jaw in the mouth and place it in the mouth. Part 2 can be placed in the mouth.

  The imaging plate 11 and the flat surface portion 2b overlap each other in the X-ray traveling direction, and the imaging plate 11 is always disposed upstream of the intraoral placement portion 2 (flat surface portion 2b) of the auxiliary tool 1 in the X-ray irradiation direction. Must have been. For example, as shown in FIGS. 1 and 2, the intraoral placement portion 2 is placed in the housing portion 15 from the opening 28 of the exterior member 9 in such a posture that the portion where the intraoral placement portion 2 and the arm portion 4 are connected is on the upper side. Insert the protective cover 7 on the auxiliary tool 1. Or, conversely, the mouth placement portion 2 is inserted into the housing portion 15 from the opening 28 of the exterior member 9 with the position where the mouth placement portion 2 and the arm portion 4 are connected to the lower side, and is protected by the auxiliary tool 1. A cover 7 is attached.

  The protective cover 7 has an interior member 8 (inner bag) that accommodates the imaging plate 11 and an exterior member 9 (outer bag) that accommodates the interior member 8, and the intraoral placement portion 2 is disposed in the exterior member 9. Therefore, the intraoral arrangement portion 2 and the imaging plate 11 are close to each other and face each other in the exterior member 9. That is, the X-rays that have passed through the imaging plate 11 do not deviate from the intraoral placement portion 2 (planar portion 2b), but are reliably attenuated by the intraoral placement portion 2 (planar portion 2b).

Since the planar portion 2b of the intraoral placement portion 2 occupies the same area as the imaging plate 11, when the protective cover 7 is attached to the auxiliary tool 1, the holding of the imaging plate 11 is stabilized.
Here, the equivalent area is an area sufficient to stably hold the imaging plate 11 and may be larger or smaller than the imaging plate 11. The area of the flat portion 2b can be, for example, 60% to 200% of the area of the imaging plate 11, preferably 80% to 150%, and more preferably 90% to 110%.
That is, if the area of the flat portion 2b is too large, it is difficult to place it in the mouth, and if it is too small, the holding of the imaging plate 11 is not stable. Therefore, it is most desirable that the area of the plane portion 2b is about plus or minus 10% with respect to the area of the imaging plate 11, for example.

Moreover, since the imaging plate 11 is detachable with respect to the plane part 2b of the intraoral arrangement | positioning part 2, the imaging plate 11 can be easily removed from the plane part 2b after X-ray imaging.
In a state where the protective cover 7 is held in the intraoral placement portion 2, the imaging plate 11 is in a positional relationship facing the flat portion 2b of the intraoral placement portion 2, so that the imaging plate 11 and the flat portion 2b overlap. Therefore, the protective cover 7 (imaging plate 11) and the planar portion 2b of the intraoral placement portion 2 are not bulky in the mouth.

  Conventionally, the patient himself / herself or the photographer has to hold the protective cover 7 (imaging plate 11) with a finger, and in this case, the finger is exposed, but is protected with the auxiliary tool 1 of the present invention. By holding the cover 7 (imaging plate 11), exposure of the finger can be avoided. When it is difficult for the patient himself / herself to hold the assisting tool 1, the photographer may have it.

  The auxiliary device 1 has an intraoral disposition portion 2 and an arm portion 4 that are integrally formed in the mouth, and has no joints. Therefore, the assisting device 1 is easily sterilized or sterilized by alcohol disinfection or autoclave. Both are integrally formed and are not screwed. Therefore, there is no fear that the screw will loosen or fall off. Therefore, there is no possibility that the patient accidentally swallows the dropped screw.

  Below, the posture in which the assisting tool 1 is easy to use is demonstrated for every site | part in a patient's mouth.

(Right mandibular molar)
When radiographing the right lower mandibular molar, as shown in FIG. 9, the grasping portion 6 of the assisting tool 1 is arranged on the left side (right side in FIG. 9) of the patient and above the mouth. The placement part 2 is placed on the patient's right side and below, and the intraoral placement part 2 is placed on the back side of the right lower jaw molar (inside the jaw).

  The intraoral placement portion 2 and the protective cover 7 (imaging plate 11) have a substantially rectangular shape, and the arm portion 4 is inclined at an inclination angle A (FIG. 3) of 30 degrees with respect to the intraoral placement portion 2. . Therefore, as shown in FIG. 9, in the assisting tool 1, the arm portion 4 extends from the outside of the patient's mouth to the inside of the mouth, and the intraoral placement portion 2 can be placed along the right lower mandibular molar that is the imaging target site. it can. The patient can easily hold the grip portion 6 with the left hand.

  At that time, the patient does not need to bite the arm portion 4. That is, even if the arm portion 4 is not bitten and the position of the intraoral placement portion 2 is not fixed, by operating the gripping portion 6 to the angular position shown in FIG. It can be placed along the molar and held in place. Further, when the intraoral placement portion 2 passes between the upper and lower teeth, it is necessary to open the mouth widely as shown in FIG. 9, but that is a moment and the cross-sectional area of the arm portion 4 is small. After the intraoral placement part 2 enters the mouth, the opening of the mouth can be made small, and X-ray imaging can be carried out in an easy posture with little effort.

In the state shown in FIG. 9, when X-rays are irradiated from an X-ray irradiation apparatus (not shown) from the direction indicated by the arrow B, X-ray imaging of the right lower molar can be performed. At this time, X-rays pass through the molar teeth and the imaging plate 11, and an X-ray image of the molar teeth is recorded on the imaging plate 11. Further, since the imaging plate 11 and the intraoral placement portion 2 overlap in the X-ray traveling direction indicated by the arrow B, the X-rays transmitted through the imaging plate 11 are attenuated by the intraoral placement portion 2 (planar portion 2b) and are placed in the mouth. The X-ray dose transmitted through part 2 is small.
Therefore, it can suppress that parts other than a patient's X-ray imaging object part are exposed.

(Right maxillary molar)
When radiographing the right upper molar, as shown in FIG. 10, the grasping portion 6 of the assisting tool 1 is placed on the left side of the patient (right side as viewed in FIG. 10) and below the mouth. The placement unit 2 is placed on the right side (left side in FIG. 10) of the patient and above, and the intraoral placement unit 2 is placed on the back side of the right upper molar (inside the jaw). The patient can easily hold the grasping portion 6 with the left hand, and the progress of X-rays is blocked by the intraoral placement portion 2, and unnecessary exposure can be avoided.
When FIG. 10 and FIG. 9 are compared, different surfaces of the planar portion 2b of the intraoral placement portion 2 are disposed on the imaging plate 11 side.

(Left lower molar)
When radiographing the left lower molar, as shown in FIG. 11, the grasping portion 6 of the assisting tool 1 is disposed on the right side (left side in FIG. 11) of the patient and above the mouth. The placement portion 2 is placed on the left side of the patient (right when viewed in FIG. 11) and below, and the intraoral placement portion 2 is placed on the back side of the left lower jaw molar (inside the tooth jaw). The patient can easily hold the grasping part 6 with the right hand, and the progress of X-rays is blocked by the intraoral placement part 2, thereby avoiding unnecessary exposure.

(Left maxillary molar)
When X-ray imaging of the left upper molar is performed, as shown in FIG. 12, the grasping portion 6 of the assisting tool 1 is placed on the right side (left side in FIG. 11) of the patient and below the mouth. The placement unit 2 is placed on the left side (right side when viewed in FIG. 12) of the patient and above, and the intraoral placement unit 2 is placed on the back side of the left upper molar (inside the tooth jaw). The patient can easily hold the grasping part 6 with the right hand, and the progress of X-rays is blocked by the intraoral placement part 2, thereby avoiding unnecessary exposure.
When FIG. 12 and FIG. 11 are compared, different surfaces of the planar portion 2b of the intraoral placement portion 2 are disposed on the imaging plate 11 side.

(Premolars and canines)
In the case of X-ray imaging of premolars and canines, the auxiliary tool 1 can be used as in the case of imaging the upper, lower, left and right molars. And a patient can hold | maintain the holding | grip part 6 of the auxiliary tool 1 easily with a left hand or a right hand, and also progress of an X-ray is blocked | prevented by the intraoral arrangement | positioning part 2, and can avoid unnecessary exposure.

(Middle incisor of the lower jaw)
When X-ray imaging is performed on the central incisor (anterior tooth) of the lower jaw, as shown in FIG. 13, the grasping portion 6 of the assisting tool 1 is on the patient's right side (left side in FIG. 13) and from the upper forehead. It arrange | positions upward and the intraoral arrangement | positioning part 2 is arrange | positioned in the back surface side (inner side rather than a tooth jaw) of the central incisor of a lower jaw. As shown in FIG. 13, the intraoral placement portion 2 is in a vertically oriented posture, and the substantially rectangular narrow side of the intraoral placement portion 2 is along the alignment direction of the central incisors.
Further, when X-ray imaging is performed on the central incisor of the lower jaw, the left and right directions of the auxiliary tool 1 can be reversed. That is, the patient can grasp the grasping portion 6 with a hand that is easier for the patient to grasp.
Even when X-ray imaging is performed on the central incisor of the lower jaw, the progress of the X-ray is blocked by the intraoral placement unit 2, and unnecessary exposure can be avoided.

(Maxillary central incisors)
When radiographing the central incisor (anterior tooth) of the upper jaw, as shown in FIG. 14, the grasping portion 6 of the assisting tool 1 is on the right side of the patient (leftward when viewed in FIG. 14) and below the lower jaw. And the intraoral placement portion 2 is placed on the back side of the central incisor of the upper jaw (inside of the tooth jaw). As shown in FIG. 14, the intraoral placement portion 2 is in a vertically oriented posture, and the substantially rectangular side on the narrow side of the intraoral placement portion 2 is along the alignment direction of the central incisors.
Further, when X-ray imaging is performed on the maxillary central incisor, the left and right directions of the auxiliary tool 1 can be reversed. That is, the patient can grasp the grasping portion 6 with a hand that is easier for the patient to grasp.
Even when the maxillary central incisor is radiographed, the progress of the X-ray is blocked by the intraoral placement portion 2, and unnecessary exposure can be avoided.

Compared to the case where the X-ray image of the lower incisor shown in FIG. 13 is taken, the orientation of the surface of the flat portion 2 b of the intraoral placement portion 2 is opposite to that of the protective cover 7 in FIG.
That is, in FIG. 13, there is a connecting portion between the arm portion 4 and the intraoral placement portion 2 on the upper end side of the opening 28 of the protective cover 7 (exterior member 9), whereas in FIG. 14, the arm portion is on the lower end side of the opening 28. In other words, in FIG. 13, in FIG. 13, one side of the intraoral placement part 2 is directed toward the imaging plate 11, whereas in FIG. 14, the other side of the intraoral placement part 2 is provided. The side surface is directed to the imaging plate 11 side.
Specifically, no matter how the intraoral X-ray imaging tool 60 in the state of FIG. 1 is rotated, the state shown in FIG. 20 is not obtained.

As described above, all of the upper, lower, left and right molars, premolars, canines, and upper and lower central incisors can be X-rayed with one common auxiliary tool 1.
Specifically, when the auxiliary tool 1 according to the present embodiment attaches the protective cover 7 to the intraoral placement portion 2, either surface of the flat portion 2b (FIG. 2) of the intraoral placement portion 2 faces the imaging plate 11 side. The reversible structure may be arranged so that the imaging plate 11 has a suitable orientation (vertical orientation or lateral orientation) for each imaging target site in the mouth, and a person who holds the grip portion 6 of the assisting tool 1 holds it. X-ray imaging can be performed with an easy posture.
9, 12, and 13 described above, the same surface of the planar portion 2 b of the intraoral placement portion 2 is disposed on the imaging plate 11 side, but in FIGS. 10, 11, and 14, the planar portion 2 b is disposed. 9, 12, and 13 are disposed on the imaging plate 11 side.
That is, by using the auxiliary tool 1 according to the present embodiment, it is not necessary to use different types of auxiliary tools for each part (for example, molar and central incisor) in the mouth.

  After the X-ray photography, the photographer removes the intraoral placement portion 2 in the housing portion 15 from the opening 28 of the exterior member 9 and removes the protective cover 7 from the auxiliary tool 1. Further, only the interior member 8 is extracted from the exterior member 9 while the imaging plate 11 remains in the exterior member 9. Then, only the imaging plate 11 remains in the exterior member 9.

  Since the imaging plate 11 can move smoothly with respect to the exterior member 9, when the opening 28 of the exterior member 9 is directed downward as shown in FIG. It slides smoothly with respect to the exterior member 9 by the action of gravity, and is discharged from the exterior member 9 (FIG. 8B). The imaging plate 11 falls from the exterior member 9 onto a floor surface (not shown).

  The photographer drops the imaging plate 11 onto a clean floor or desk, and picks up the imaging plate 11 with a clean hand from which the glove with saliva attached is removed. That is, the photographer can easily take out the imaging plate 11 in a clean state. Therefore, it is not necessary to wash the imaging plate 11.

  In the embodiment described above, the protective cover 7 has the interior member 8 and the exterior member 9, and is arranged by inserting the intraoral placement portion 2 of the auxiliary tool 1 together with the interior member 8 into the housing portion 15 of the exterior member 9. Explained the case.

In addition to the protective cover 7 having such a configuration, the auxiliary tool 1 can also hold a protective cover 35 as shown in FIG. The protective cover 35 has a structure in which belt portions 37 a and 37 b are provided on the exterior member 9 that houses the interior member 8 in the protective cover 7.
As shown in FIG. 15 (a), the two belt portions 37 a and 37 b are spaced apart and in parallel, and both ends are fixed to both sides in the width direction of the exterior member 9. As shown in FIG. 15B, such a protective cover 35 is held by the intraoral placement portion 2 (plane portion 2b) of the auxiliary tool 1 via belt portions 37a and 37b. The holding of the protective cover 35 by the flat portion 2b is stable.
The protective cover 35 (imaging plate 11) is detachably attached to the flat surface portion 2b of the intraoral placement portion 2.
Although the protective cover 35 has a structure in which the belt portions 37a and 37b are provided on the exterior member 9 of the protective cover 7, the protective cover 35 may be configured by providing the belt portions 37a and 37b on another bag member.
After X-ray imaging, the intraoral arrangement part 2 is removed from the belt parts 37a and 37b, the imaging plate 11 in the protective cover 35 is taken out, and image data is acquired by a processing device (not shown).

Moreover, the auxiliary tool 1 can also hold a protective cover 45 as shown in FIG. The protective cover 45 has a structure in which locking portions 47 a, 47 b, 48 a, 48 b are provided on the exterior member 9 in the protective cover 7.
In the protective cover 45, instead of the belt portion 37a of the protective cover 35, a pair of locking portions 47a, 47b are provided on the exterior member 9, and instead of the belt portion 37b, another pair of locking portions 48a, 48b is provided.
Each of the locking portions 47a, 47b, 48a, 48b is a hook with a dogleg shape as shown in FIG. The locking portions 47a and 47b and the locking portions 48a and 48b are fixed apart in the vicinity of each pair of parallel sides of the exterior member 9.
As shown in FIG. 16 (b), the protective cover 45 engages each pair of locking portions 47 a, 47 b, 48 a, 48 b with the intraoral placement portion 2 (plane portion 2 b) of the auxiliary tool 1, It is hold | maintained at the intraoral arrangement | positioning part 2 (plane part 2b). That is, when the imaging plate 11 accommodated in the interior member 8 is accommodated in the exterior member 9 together with the interior member 8, and the protective cover 45 (imaging plate 11) is attached to the intraoral placement portion 2, the imaging plate 11 is disposed in the mouth. Held in part 2.
The protective cover 45 (imaging plate 11) is detachably attached to the flat surface portion 2b of the intraoral placement portion 2. The holding of the protective cover 45 by the flat surface portion 2b is stable.

  Furthermore, the protective cover 7 shown in FIG. 1, the protective cover 35 shown in FIG. 15 (a), and the protective cover 45 shown in FIG. 16 (a) may be covered with the bag member 50 shown in FIG. it can. The bag member 50 is made of a flexible material (for example, polyethylene) that maintains liquid tightness. In this case, the bag member 50 covers a part or all of the arm portion 4 as well as the protective covers 7, 35, 45 and the intraoral placement portion 2. That is, a part of the bag member 50 is out of the patient's mouth.

  Since the imaging plate 11 held by the intraoral placement unit 2 is accommodated in the flexible bag member 50 that is kept fluid-tight, when the intraoral placement unit 2 is placed in the patient's mouth, the intraoral placement unit 2 and the arm The flexible bag member 50 is appropriately deformed along the portion 4 and the shape of the patient's mouth.

When the X-ray imaging is completed, the protective covers 7, 35, and 45 are taken out from the patient's mouth, and the bag member 50 to which saliva or the like is attached is removed from the auxiliary tool 1. No sputum or the like is attached to the auxiliary tool 1 and the protective covers 7, 35, 45, and is clean. Therefore, the photographer can take out the imaging plate 11 without getting his hands dirty.
Since the imaging plate 11 and the auxiliary tool 1 do not have saliva or the like attached thereto, the imaging plate 11 and the auxiliary tool 1 are kept clean and can be reused without being washed.

In the above-described embodiment, the auxiliary tool 1 has been described in the case where the intraoral placement portion 2, the arm portion 4, and the gripping portion constituting portion 3 are integrally formed of the same material, but these may be formed separately and combined. . That is, the arm part 4 and the grip part constituting part 3 do not need to be formed of a material that attenuates X-rays. Moreover, the arm part 4 and the holding part structure part 3 should just have the rigidity of the grade which can support the intraoral arrangement | positioning part 2. FIG.
Also in this case, the intraoral placement portion 2, the arm portion 4, and the gripping portion constituting portion 3 of the auxiliary tool 1 are combined and integrated.

  FIG. 18A is a front view of an intraoral X-ray imaging auxiliary tool 41 (hereinafter referred to as auxiliary tool 41) different from FIG. The auxiliary tool 41 has an arm part 44 having a structure different from that of the arm part 4 of the auxiliary tool 1 of FIG. 1, and the other structure is the same as that of the auxiliary tool 1.

The arm portion 44 has a base end portion 42 connected to the gripping portion 6 side and a distal end portion 43 connected to the intraoral placement portion 2 side.
The axis line (center line) 49a of the base end part 42 coincides with the axis line (center line) of the grip part 6, and the axis line (center line) 49b of the distal end part 43 is parallel to one side 2a of the mouth-arranged part. The axis 49a of the base end portion 42 and the axis 49b of the tip end portion 43 form the above-described angle A (inclination angle A). That is, the base end portion 42 and the distal end portion 43 of the arm portion 44 are each linear and intersect each other at an angle A.

In other words, in the example shown in FIG. 18A, the arm portion 44 is bent at an intermediate position, and the distal end portion 43 connected to the intraoral placement portion 2 extends along the intraoral placement portion 2 (one side 2a). .
That is, the imaging plate (not shown) held by the intraoral placement portion 2 is inclined at an inclination angle A with respect to the axis line (axis line of the gripping portion 6) 49a of the base end portion 42 of the arm portion 44.

FIG. 18B is a front view of an intraoral X-ray imaging auxiliary tool 51 (hereinafter referred to as auxiliary tool 51) different from FIGS. 1 and 18A.
The auxiliary tool 51 has an arm portion 52 that is different from the auxiliary tools 1 and 41.
The arm part 52 of the auxiliary tool 51 is not bent like the arm part 44 of the auxiliary tool 41 but is curved. The axis 53 of the gripping part 6 and the axis 54 at the part connected to the intraoral placement part 2 in the arm part 52 intersect at an angle A.

  The axis 54 of the part connected to the intraoral placement portion 2 in the arm portion 52 is parallel to the one side 2 a of the intraoral placement portion 2. In other words, an imaging plate (not shown) held by the intraoral placement portion 2 is along the axis 54 and forms an inclination angle A with the axis 53.

The outer shape of the flat portion 2b and the imaging plate 11 is preferably a similar shape, but is not necessarily a similar shape. That is, the outer shape of the imaging plate 11 may be different from the outer shape of the flat portion 2b as long as there is no problem with X-ray imaging.
Furthermore, the plane part 2b may have an opening and a notch. For example, the flat surface portion 2b may have a frame shape, and a large opening may be provided in the central portion. Hereinafter, it will be described with reference to the drawings.

FIG. 19A to FIG. 19C show a modification of the intraoral placement portion 2 shown in FIG.
The outer shape of the intraoral placement portion 55 shown in FIG. 19A is an ellipse.
The external shape of the intraoral placement portion 56 shown in FIG. 19B is a square.
That is, the intraoral placement portions 55 and 56 have an outer shape different from that of the substantially rectangular imaging plate 11. However, the intraoral placement portions 55 and 56 have the same area as the imaging plate 11. The intraoral placement portion 55 has a slightly larger area than the imaging plate 11 and covers the entire area of the imaging plate 11.
On the other hand, the intraoral placement portion 56 has the same area as the imaging plate 11, but has a different shape, and a part of the imaging plate 11 protrudes from the intraoral placement portion 56.
Moreover, the intraoral arrangement | positioning part 57 shown in FIG.19 (c) has the opening 58 in the center part. That is, the intraoral arrangement part 57 has a frame shape.

  In the above-described embodiment, the example in which the intraoral X-ray imaging auxiliary tools 1, 41, 51 are integrally formed of a material (for example, stainless steel) that suppresses the transmission of X-rays has been shown. When allergic to the material that suppresses the transmission of the wire, other materials (for example, titanium alloy, carbon fiber reinforced plastic, etc.) can be employed. Even if the intraoral X-ray imaging aids 1, 41, 51 are made of such a material, the X-ray exposure of the hand holding the intraoral X-ray imaging aids 1, 41, 51 is reduced. .

  In addition, as described above, the thickness of the intraoral placement portion 2 can be about 2 mm, but it is preferable to reduce the volume of the patient's mouth as much as possible in consideration of the burden on the patient. That is, if the strength of the intraoral placement portion 2 is ensured, the thickness of the intraoral placement portion 2 is preferably 2 mm or less.

DESCRIPTION OF SYMBOLS 1 Intraoral X-ray imaging auxiliary tool 2 Intraoral arrangement part 2a One side 2b of intraoral arrangement part Flat part 4 of intraoral arrangement part 4 Arm part 6 Holding part 7 Protective cover 8 Interior member 9 Exterior member 11 Imaging plate (photoconductor)
50 Bag member B X-ray traveling direction

Claims (6)

An auxiliary tool for intraoral radiography for holding a photoconductor for intraoral radiography in the mouth,
It has a mouth placement part, a grip part, and an arm part,
The mouth placement part and the grip part are connected by the arm part,
The intraoral placement portion has a flat portion that occupies the same area as the photoconductor,
The photoconductor can be attached to and held on the flat surface portion of the mouth arrangement portion, and the photoconductor is detachable from the flat portion of the mouth arrangement portion,
An auxiliary tool for intraoral X-ray imaging, wherein the photoconductor is in a positional relationship facing the flat portion of the intraoral placement portion in a state where the photoconductor is held in the intraoral placement portion.   The auxiliary device for intraoral X-ray imaging according to claim 1, wherein the intraoral arrangement portion is formed of a material that attenuates X-rays.   3. The intraoral X-ray imaging according to claim 1, wherein the intraoral placement portion is connected to the arm portion in a posture inclined with respect to an axis of the gripping portion or an axis of the arm portion. Auxiliary tool.   4. An inner bag for storing the photosensitive member and an outer bag for storing the inner bag, wherein the mouth placement portion is disposed in the outer bag. Assistive tool for X-ray photography in the mouth.   5. The intraoral X-ray imaging according to claim 1, wherein the photosensitive member held by the intraoral placement portion is accommodated in a flexible bag member that maintains liquid tightness. Auxiliary tool. An intraoral X-ray imaging tool having a photoreceptor for intraoral X-ray imaging and an auxiliary tool for intraoral X-ray imaging that holds the photoconductor in the mouth,
The intraoral X-ray imaging aid has an intraoral placement portion, a gripping portion, and an arm portion,
The mouth placement part and the grip part are connected by the arm part,
The intraoral placement portion has a flat portion that occupies the same area as the photoconductor,
The photoconductor is mounted and held on a flat surface portion of the mouth arrangement portion, and the photoconductor is detachable with respect to the flat portion of the mouth arrangement portion,
An intraoral X-ray imaging tool, wherein, in a state where the photoconductor is held in the intraoral placement portion, the photoconductor is in a positional relationship facing the flat portion of the intraoral placement portion.

Images