JP2009050284A - Element holder for dental x-ray photographing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem wherein a photographing element is positionally shifted when photographing is performed in a state that the photographing element is pressed by a finger or the sanitary problem wherein the finger is inserted in the oral cavity, the problem from an aspect of the degree of freedom of the angle of the photographing element caused when the photographing element is fixed to a holding part at a definite angle and the point at issue wherein many kinds of holders are required in order to photograph all of the regions in the oral cavity. <P>SOLUTION: This T-shaped element holder 1 for dental X-ray photographing is formed of a support lever 2 having tab parts 3 held by respective left and right hands at both its ends and the insertion lever 4 extending in a vertical direction from the central part of the support lever 2 to be inserted in the oral cavity and having a photographing element receiving part 6 provided to its leading end. When the photographing element 5 is manually provided in the photographing element receiving part 6 of the dental X-ray photographing element holder 1 to be inserted in the oral cavity, the photographing element 5 is supported and stably held at least at three points, that is, its point adjacent to or coming into contact with the photographing region in the oral cavity and two points where both tabs 3 are held by respective left and right hands to perform photographing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dental X-ray imaging tool, and more particularly to an X-ray imaging element holder in intraoral radiography.

  Conventionally, three methods, “apex projection method”, “marginal projection method”, and “bisection method”, have been taken as imaging methods in intraoral radiography (reference “dental X-ray diagnostics”, Shoichi Ando). Written by Ishiyaku Publishing. As another imaging method, there is an imaging method in the case of taking a picture for the time being so that diagnosis can be performed by refraining from the above-mentioned imaging method due to vomiting reflex, hypersensitivity and the like. In addition, in these imaging methods, there are “use finger method” and “use device method” in which the imaging element (CCD, IP, film) is held at the target location in the oral cavity (document “dental X-ray diagnostics” Ando. (Shoichi, published by dentistry).

  However, in the “fingering method”, since the imaging element is held and held with one finger, rotation and displacement are likely to occur, and it is often necessary to redo the photography or the operator must hold the imaging element. There is also a problem that it is not hygienicly appropriate for putting a finger in the mouth. Moreover, in the usage method, for example, there are photographing tools shown in Reference 1 and Reference 2, etc., such that these are photographed with a photographing element that holds the retaining plate part with upper and lower teeth and is fixed to the retaining part at a fixed angle. It is configured. In addition, since the imaging element is fixed to the retaining plate at a certain angle, there is a problem that only one of the three methods of “apex projection method”, “edge projection method”, and “bisector method” can be imaged. there were.

Further, when photographing by the methods of the above-mentioned documents 1 and 2, three photographing tools, one for each left and right molars and one for anterior teeth, are required, resulting in problems in economy and handling. In particular, due to the above-mentioned causes of vomiting reflex, hypersensitivity, etc., the imaging method needs to be held at an arbitrary angle at an arbitrary holding site in the case of shooting for the time being so that diagnosis can be performed by observing it. In the methods 1 and 2, there is a problem in the degree of freedom of holding that it is not possible to hold the image arbitrarily. Furthermore, in the imaging element receiving part fixed to the holding plate at a certain angle, the size in the mouth of the subject, that is, the height and depth to the palate and the bottom of the mouth, there are large individual differences depending on men, women, young children, etc. It often became impossible to shoot.

JP 2004-174162 A JP-A-10-314164

  The problem to be solved is that the conventional X-ray imaging element holder in the intraoral radiography means that the imaging element is displaced or the finger is put into the oral cavity by pressing the imaging element with a finger for imaging. There is a problem of hygiene, and in the usage method, since the imaging element is fixed to the holding portion at a certain angle, the angle of the imaging element is problematic. In addition, conventionally, it is necessary to equip many kinds of holders in order to image all of the oral cavity, and there is an economic problem in terms of equipment cost and maintenance, and the purpose is to solve these problems .

  In order to solve the above problems, the present invention is provided with a support rod having a tab portion for holding both ends by left and right hands, and a photographing element receiving portion extending vertically from the center of the support rod at the tip thereof. Forming a T-shaped and flat-plate dental X-ray imaging element holder composed of an insertion rod inserted into the cavity, and manually installing the imaging element in the imaging element receiving portion and inserting it into the oral cavity The imaging element is supported by at least three points by the point where the imaging element is adjacent to or in contact with the imaging site in the oral cavity and the two tabs are held by the left and right hands, respectively, thereby enabling stable imaging. It is characterized by.

  The three-point support of the dental X-ray imaging device holder is such that the positional relationship between the two points holding the tabs with the left and right hands is approximately isosceles, with the contact point of the imaging device in the mouth as the apex. By forming a triangle, the imaging element can be stabilized so as not to shift during imaging.

The dental X-ray imaging element holder having the above-mentioned basic configuration approximates the cross section of an imaging element that can be inserted at the tip of the insertion rod with the imaging element oriented in a direction perpendicular to the longitudinal direction of the insertion rod. An insertion hole having a shape is formed, and a slit portion is formed by connecting to the insertion hole, and a holding portion is provided that can clamp and fix the imaging element in the insertion hole by a bending effect by the slit portion. Thus, an anterior X-ray imaging element holder is formed.

In addition, by providing a holding part on the top surface of the distal end of the insertion rod of the dental X-ray imaging device holder, the imaging device can be clamped and fixed with a single touch in a direction along the longitudinal direction of the insertion rod. A molar X-ray imaging element holder is formed.
Further, the X-ray imaging element holder for the anterior teeth and molars is provided with a radiation incident direction gauge for determining the main radiation direction of X-rays, and the X-ray imaging element holder for molars is irradiated with radiation. In addition to the direction gauge, an irradiation field guide made of a superelastic alloy is detachably configured to determine the main radiation direction of X-rays.

  The dental X-ray imaging element holder of the present invention is formed in a T shape with a support rod that holds both ends with the left and right hands and an insertion rod that is inserted into the oral cavity, and the imaging device is held at the tip of the insertion rod. By providing the tool part and fixing the imaging element to the imaging element holding part, when the imaging element is inserted into the oral cavity, the imaging element is adjacent to or in contact with the imaging site in the oral cavity, and the support rod The support can be stabilized at at least three points including two points that are held by the left and right hands, and it is possible to take a picture without causing the photographing element to shift. Further, in the oral cavity, it can be held by adjoining / contacting at an arbitrary position and angle, so that it can be held freely and easily as compared with a type in which a conventional holding tool is bitten. In this case, the holding is further stabilized by lightly touching the arms of the left and right hands holding the support rod against the flank.

  In addition, the three points of the three-point support have a substantially isosceles triangle formed by two points that are adjacent to and contacted in the oral cavity of the imaging element inserted in the oral cavity and hold the supporting rod with the left and right hands respectively. Therefore, the operator and the subject can easily understand the photographing position intuitively, and a series of photographing operations can be performed easily and stably. Furthermore, the imaging element holding portion provided at the tip of the insertion rod can be easily handled because the imaging element can be fixed with one touch by the bending force of the holding member.

  The dental X-ray imaging element holder having the above-described configuration includes an anterior X-ray imaging element holder of the type that fixes the imaging element to the imaging element holding portion at the distal end of the insertion rod in a direction perpendicular to the longitudinal direction of the insertion rod. There are two types of X-ray imaging element holders for molars that fix the imaging element in the direction along the longitudinal direction of the insertion rod, both of which have a free holding angle facing the imaging part of the imaging element, and Since it can be held by three-point support, all images in the oral cavity in the “apex projection method”, “edge projection method”, “bisector method”, and the like can be stably captured. Therefore, in the case of a conventional dental X-ray imaging element holder, it is possible to reduce the cost of equipment and maintenance compared with the case where at least three kinds of holders are required for imaging the entire oral cavity. .

  The X-ray imaging device holder for anterior teeth and molars is provided with an irradiation beam incidence direction gauge for determining the X-ray main radiation direction, so that the X-ray main radiation direction can be easily determined even if unfamiliar. Can do. The X-ray imaging element holder for molars is provided with an irradiation field guide for determining the main radiation direction of the X-ray in addition to the irradiation incident direction gauge, so that the position of the X-ray irradiation tube can be easily determined. After use, the irradiation field guide can be removed and stored compactly. The irradiation field guide is made of a superelastic alloy and is easy to handle because it is restored to its original shape even when bent.

  Furthermore, since the conventional holder has a projection such as a nail or a screw to fix the imaging element to the holding unit, the projection contacts the inner wall of the oral cavity and stimulates the palate, mouth floor, throat, and the like. However, the dental X-ray imaging device holder of the present invention has no problem because there is no such projection, and even a subject with strong vomiting reflex or hypersensitivity can open a narrow mouth Since a photographing element can be inserted inside, photographing is easy. Further, since it is not necessary to hold the imaging element with a finger as in the prior art, the hygiene problem of inserting a finger into the oral cavity can be solved. Further, since the dental X-ray imaging element holder of the present invention is formed in a flat plate shape with plastic, there is an advantage that it is light, easy to handle, and easy to insert and stably hold in the oral cavity.

  The present invention stabilizes and holds an imaging element by arbitrarily adjusting the angle of the imaging element inserted into the oral cavity without pressing the imaging element inserted into the oral cavity with fingers, and in the oral cavity (tooth or periodontal tissue For example, a dental X-ray imaging device holder is formed in a T shape with a support rod and an insertion rod, and both ends of the support rod are held with the left and right hands, and the imaging device is attached to the insertion rod tip. Is fixed and inserted into the oral cavity, and the imaging element is placed adjacent to and in contact with the imaging unit in the oral cavity to form and hold an approximately isosceles triangle with the contact point in the oral cavity and two points held by both hands. Can be stabilized, and only two types of dental X-ray imaging device holders for anterior teeth and molars can be used. Dental X-rays that can capture everything in the oral cavity without having to press it with your finger Realized imaging element holder.

  1 to 5 show Embodiment 1 of the present invention. FIG. 1 is a perspective view of an anterior X-ray imaging element holder, FIG. 2 is a perspective view of the imaging element, and FIG. 3 is an anterior X-ray imaging element holder. FIG. 4 is a view showing imaging using an anterior X-ray imaging element holder, and FIG. 5 is an explanatory view of three-point support.

  In this embodiment, an example of an anterior X-ray imaging element holder will be described. As shown in FIG. 1, the anterior X-ray imaging device holder 1 is formed in a T shape with a plastic flat plate, and one side of the T shape is a holding rod 2 held by hand, A tab portion 3 that is held by each hand is provided. Further, one side extending in the vertical direction from the center of the holding rod 2 is an insertion rod 4 to be inserted into the oral cavity, and a photographing element receiving portion 6 for fixing the photographing element 5 shown in FIG. The imaging element 5 is formed in a rectangular plate shape as shown in FIG. 2, one surface of which is an imaging surface 7, and a cable 8 is electrically connected to one end.

  Further, the imaging element receiving portion 6 provided at the distal end of the insertion rod 4 can insert the imaging surface 7 of the imaging element 5 in a direction orthogonal to the longitudinal direction of the insertion rod 4, and a cross section of the imaging element 5 An approximate insertion hole 9 is formed, and a slit portion 10 is formed by being connected to the insertion hole 9, so that the imaging element 5 is shown in FIG. The insertion hole 9 is formed so as to be sandwiched and fixed with one touch.

  In the X-ray imaging element holder 1 for the anterior teeth having the above-described configuration, when the imaging element 5 is manually installed in the imaging element receiving portion 6 and inserted into the oral cavity, the imaging element 5 is adjacent to or touches the imaging site in the oral cavity. The imaging element 5 is held with at least three points supported by the points and the two points where the tabs 3 of the holding rod 2 are held by the left and right hands, so that stable imaging can be performed. And this three-point support is a substantially isosceles triangle with the three points having the apex at the adjacent / contact point in the mouth of the imaging element 5 and holding the both ends of the support rod 2 with the left and right hands respectively. It is in a positional relationship, and stable holding is easy.

  Next, the operation of the anterior X-ray imaging element holder 1 will be described. When using the anterior X-ray imaging element holder 1 as shown in FIG. 3, first, the imaging element 5 is inserted into the insertion hole 9 of the imaging element holding part 6 provided at the distal end of the insertion rod 4 from above or below. As a result, the bending effect of the slit portion 10 enables clamping and fixing with one touch. In addition, since the imaging element 5 is clamped and fixed along the longitudinal direction with respect to the tooth axis, when the imaging element 5 is used for a short time when it contacts the palate or the bottom of the mouth, etc. It is possible to use the element 5 by shifting the clamping / fixing position.

  The anterior X-ray imaging device holder 1 with the imaging device 5 attached is attached to the both ends of the holding rod 2 with the left and right hands (thumb, forefinger, middle finger) while holding the imaging device 5 in the oral cavity. Insert inside. The inserted imaging element 5 is moved to, for example, the imaging position of the upper front tooth 12 by operating the holding rod 2 back and forth, up and down, and left and right, and the angle α formed between the upper front tooth 12 and the imaging element 5 is imaged as shown in FIG. The imaging element 5 is brought into contact with either the inner wall of the oral cavity and / or the front teeth 12 at that position.

  As a result, as shown in FIG. 5, the imaging element 5 is substantially at least at two points a and b that hold the adjacent / contact point d in the oral cavity and the tab portion 3 of the holding rod 2 with the left and right hands, respectively. Holding is stabilized by forming an isosceles triangle. Further, the holding can be stabilized easily by lightly applying both arms to the flank while maintaining this state. Further, an irradiation ray incident direction gauge 13 is marked in the longitudinal direction of the insertion rod 4 as shown in FIG. 1, and the main radiation direction of the X-ray irradiation tube 14 is aligned with the direction of this gauge 13 as shown in FIG. Thus, X-rays can be irradiated perpendicularly to the imaging surface 7 of the imaging element 5. 4 shows an example in which the imaging element 5 is directed upward and the upper front tooth 12 is imaged. However, if the imaging element 5 is directed downward, the lower front tooth 15 can be imaged in the same manner as the upper front tooth 12. .

  FIGS. 6 to 11 show Embodiment 2 of the present invention, FIG. 6 is a perspective view of a molar X-ray imaging element holder, and FIG. 7 is a diagram in which an imaging element is attached to a molar X-ray imaging element holder. 8 is a diagram showing angle adjustment of the imaging element, FIG. 9 is a diagram showing imaging using a molar X-ray imaging element holder, FIG. 10 is a diagram showing the angle of the imaging element with respect to the imaging unit, and FIG. 11 is a three-point support It is explanatory drawing of.

  In the present embodiment, an example of a molar X-ray imaging element holder will be described. As shown in FIG. 6, the molar X-ray imaging element holder 21 is formed in a T-shape with a plastic flat plate like the anterior X-ray imaging element holder 1, and one side of the T-shape is hand-held. And holding tabs 23 that are held by both the left and right hands. One side extending in the vertical direction from the center of the holding rod 22 is an insertion rod 24 to be inserted into the oral cavity, and a photographing element receiving portion 25 for fixing the photographing element 5 shown in FIG.

  The imaging element holding unit 25 is provided on the top surface of the distal end of the insertion rod 24 so that the imaging element 5 can be clamped and fixed with a single touch in the direction along the longitudinal direction of the insertion rod 24 by a flexible force. The inner width is smaller than the thickness of the imaging element 5 in a U-shape. In addition, although the imaging element holding part 25 has shown the example integrally formed with the insertion rod in FIG. 6, you may make it the structure attached to the front-end | tip of the insertion rod 24 by making the imaging element holding part 25 into another component.

  In addition, a notch 26 formed at the tip of the insertion rod 24 is used to hold the imaging element 5 with the imaging element holding portion 25 as shown in FIG. It is a groove | channel for rubber ring latching. In addition, an irradiation beam incident direction gauge 30 that marks the direction of the X-ray irradiation tube 14 in an auxiliary manner in the longitudinal direction of the holding rod 22 is marked. Further, an irradiation guide mounting hole 29 for detachably mounting the irradiation field guide 28 shown in FIG. 7 is provided in the longitudinal direction of the holding rod 22 at the base end portion of the insertion rod 24.

   Next, the operation of the molar X-ray imaging element holder 21 will be described. As shown in FIG. 7, when using the X-ray imaging element holder 21 for molars, first, the imaging element 5 is inserted by inserting the imaging element 5 into a U-shaped imaging element holding portion 25 provided at the distal end of the insertion rod 22. Is clamped and fixed with one touch by the U-shaped bending effect. Further, if necessary, as shown in FIG. 7, the rubber ring 27 or the like may be securely fixed through the notch 26.

  The molar X-ray imaging element holder 21 to which the imaging element 5 is attached holds the imaging element 5 in the oral cavity while holding the tab portions 23 provided at both ends of the holding rod 24 with the left and right hands (thumb, index finger, middle finger). Insert inside. The inserted imaging element 5 is moved to the imaging position of the molar by operating the holding rod 22 back and forth, up and down and left and right as shown in FIG. 8, and the angle α formed between the molar 31 and the imaging element as shown in FIG. The angle is adjusted to the most suitable angle for imaging, and the imaging element 5 is brought into contact with either the inner wall of the oral cavity and / or the molar 31 at the same position or simultaneously. Thus, as described in the first embodiment, as shown in FIG. 11, the imaging element 5 holds the adjacent / contact point d in the oral cavity and the tab portion 23 of the holding rod 24 with the left and right hands respectively. , B form a substantially isosceles triangle at at least three points, and the holding is stable. Further, the holding can be stabilized easily by lightly applying both arms to the flank while maintaining this state.

  Next, while maintaining the angle of the imaging element in the state shown in FIG. 10, the direction of the X-ray irradiation cylinder 14 is supplementarily aligned with the irradiation field incident direction gauge 30 marked on the holding rod 22 as shown in FIG. The tip of the X-ray irradiation tube is aligned with the irradiation field guide 28 and X-ray main radiation is irradiated perpendicularly to the imaging surface 7 of the imaging element 5. This enables reliable shooting even if unfamiliar. After the molar X-ray imaging element holder 21 is used, the irradiation field guide 28 is removed and stored compactly. In this embodiment, the right upper molar was photographed as an example. However, the right mandibular molar can also be photographed by attaching the imaging surface of the imaging element 5 to the imaging element holding unit 25 with the imaging surface facing away from the present embodiment. Is possible. That is, by changing the orientation of the imaging surface, all the molar parts other than this embodiment can be imaged. Conventionally, two types of holders were required to photograph the “upper right side / lower left” and “upper left side / lower right” of the molar part. However, in the X-ray imaging element holder for molars of the present invention, Shooting is possible with only one type.

  As described above, since the dental X-ray imaging element holders 1 and 21 of the present invention are formed in a flat plate shape with plastic, they are light and easy to handle. An imaging element can be inserted into the inside. In addition, projections such as claws and screws for holding the imaging element 5 on the imaging element holding part as in the past are the tip, left and right ends of the imaging element 5 (when the cord lead-out part of the imaging element 5 faces downward). Therefore, there is no problem that protrusions come into contact with the oral cavity, and it is possible to photograph subjects such as vomiting reaction and hypersensitivity. Further, since the imaging element forms a substantially isosceles triangle by the point where the imaging element adjoins or contacts in the oral cavity and the two points held by both hands, the imaging element can be stably and held for imaging, and the dental X of the present invention Only two types of an imaging device holder for anterior teeth and molars can be imaged in the oral cavity.

  In addition, when the photographing element is a CCD, it is also a feature of the present invention that the light receiving surface of the CCD can be used 100% because the rear end of the CCD sensor and the lead portion of the cord are clamped and held. Note that the material forming the dental X-ray imaging element holder is not limited to plastic, and a metal or other material may be used as long as it has a force for stably holding the imaging element.

It is a perspective view of the X-ray imaging element holder for front teeth. Example 1 It is a perspective view of an image pick-up element. Example 1 It is the figure which attached the imaging element to the X-ray imaging element holder for front teeth. Example 1 It is a figure which shows imaging | photography using the X-ray imaging element holder for front teeth. Example 1 It is explanatory drawing of 3 point | piece support. Example 1 It is a perspective view of the X-ray imaging element holder for molars. (Example 2) It is the figure which attached the imaging element to the X-ray imaging element holder for molars. (Example 2) It is a figure which shows angle adjustment of an imaging element. (Example 2) It is a figure which shows imaging | photography using the X-ray imaging element holder for molars. (Example 2) It is a figure which shows the angle with respect to the imaging | photography part of an imaging device. (Example 2) It is explanatory drawing of 3 point | piece support. (Example 2)

Explanation of symbols

1 Anterior X-ray imaging device holder
2, 22 Holding rod
3, 23 Tab section
4, 24 Insertion
5 Image sensor
6, 25 Image sensor receiver
7 Imaging surface
8 Cable
9 Insertion hole
10 Slot section
12 Upper front teeth
13, 30 Irradiation direction gauge
14 X-ray irradiation tube
15 lower front teeth
21 X-ray imaging device holder for molars
26 Notch
27 Rubber ring
28 Irradiation field guide
29 Irradiation field guide mounting hole
31 molars

Claims (9)

  A T-shape comprising a support rod having a tab portion for holding both ends by left and right hands, and an insertion rod extending vertically from the center of the support rod and having a photographing element receiving portion at the tip thereof to be inserted into the oral cavity. When a dental X-ray imaging element holder is formed and the imaging element is manually installed in the imaging element receiving portion of the dental X-ray imaging element holder and inserted into the oral cavity, the imaging element is in the oral cavity. Dental X-ray imaging characterized in that the imaging element is stably imaged with at least three points supported by the point adjacent to or touching the imaging region and the two points holding the tabs by the left and right hands respectively. Element holder.   The three points of the three-point support in the dental X-ray imaging element holder are approximately two points, with the adjacent / contact point in the oral cavity of the imaging element as the apex and both ends of the support rod held by the left and right hands. The dental X-ray imaging element holder according to claim 1, wherein a positional relationship of equilateral triangles is formed.   The dental X-ray imaging element holder according to claim 1, wherein the dental X-ray imaging element holder is formed of a flat plate.   2. The dental X-ray imaging element holder according to claim 1, wherein the dental X-ray imaging element holder is made of plastic.   The dental X-ray imaging element holder according to claim 1, wherein the dental X-ray imaging element holder is provided with a radiation incident direction gauge for determining a main radiation direction of X-rays. The imaging element holding part of the dental X-ray imaging element holder can insert the imaging element with its imaging surface oriented in a direction perpendicular to the longitudinal direction of the insertion rod, and an insertion hole having an approximate shape in the cross section of the imaging element An X-ray imaging element holder for an anterior tooth that further extends a slit portion connected to the insertion hole, and allows the imaging element to be clamped and fixed in the insertion hole by the bending effect of the slit portion The dental X-ray imaging element holder according to claim 1, comprising: The imaging element holding part of the dental X-ray imaging element holder clamps and fixes the imaging element on the top surface of the distal end of the insertion rod and the imaging surface in a direction along the longitudinal direction of the insertion rod with a one-touch force. The dental X-ray imaging element holder according to claim 1, comprising a molar X-ray imaging element holder provided with a holding portion to be obtained.   The dental X-ray imaging element holder according to claim 1, wherein an irradiation field guide for determining a main radiation direction of X-rays is detachably attached to the molar X-ray imaging element holder.   9. The dental X-ray imaging element holder according to claim 8, wherein the irradiation field guide is made of a superelastic alloy.

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