JP4486228B2 - Panorama X-ray imaging positioning adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a panoramic X-ray imaging positioning adjustment apparatus that adjusts each part of an X-ray imaging apparatus to a correct position with respect to a patient's head.
[0002]
[Prior art]
Conventionally, in panoramic X-ray photography in dentistry, after an operator introduces a patient to a designated position of the panoramic X-ray imaging apparatus, the head is placed on each part of the positioning adjustment apparatus while giving instructions to the patient using a jig. An operation to adjust to the correct position was performed.
[0003]
[Problems to be solved by the invention]
However, in general, the panoramic X-ray imaging is often completed by one imaging, and the patient is not accustomed to imaging, so the position of the patient's head must be positioned in order to succeed in one imaging. It is necessary to be strict so as not to blur the image. For this reason, the conventional method of positioning the device while adjusting the device manually has a problem that the burden on the operator is large.
[0004]
Therefore, the present invention has been made in view of the above problems, and panoramic X-ray imaging that enables adjustment of the adjustment position of the positioning adjustment device with respect to the patient's head according to instructions from the computer without depending on the judgment of the operator. An object is to provide a positioning adjustment device.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a rotary arm front-rear slide mechanism that rotates and slides in a horizontal plane and moves up and down on a support column, and an X-ray irradiation unit and an X-ray image receiving unit that are suspended by the rotary arm front-rear slide mechanism. Forehead support front / rear slide mechanism for positioning the front of the head while sliding facing the front of the head and a side head support left and right independent slide mechanism for positioning the side of the head while opening and closing facing the side of the head A side camera provided in the vicinity of the X-ray irradiation unit for acquiring a side image of the patient's head, a chin rest that moves up and down on the support, and a front of the patient's head that is provided near the chin rest and moves up and down together. A front camera that acquires an image, and the position of the positioning adjustment device is indicated by judging the position of the patient based on the side camera and the image data acquired by the front camera. A computer; a display unit for indicating an adjustment position; a sensor for detecting that the patient's chin is placed on the chin rest; and a sensor for detecting that the patient is introduced at a predetermined position on the base side And each part of the panoramic X-ray imaging apparatus is adjusted to a correct position with respect to the patient's head by manual operation.
[0006]
The invention according to claim 2 of the present invention is characterized in that each of the front camera and the side camera comprises a plurality.
[0007]
According to the first and second aspects of the invention, the introduction position of the patient is confirmed by each sensor, and the face image data acquired by the front camera and the side camera is analyzed by the computer, and the display unit is based on the analysis value. In accordance with the adjustment position instructions displayed on the screen, it is possible to correctly position each position adjustment device by adjusting the position of the position adjustment device according to the patient's jaw height, head deviation and tilt without relying on the judgment of the operator. It becomes.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
1 to 10 relate to the present invention, FIG. 1 is a side view showing a configuration of a panoramic X-ray imaging apparatus, FIG. 2 is a diagram showing the operation of a forehead support back-and-forth slide mechanism, and FIG. FIG. 4 is a diagram showing the operation of the mechanism, FIG. 4 is a diagram showing the introduction of the patient, FIG. 5 is a top view showing the chin rest, FIG. 6 is a top view showing the sensor provided at the patient's standing position, and FIG. FIG. 8 is a diagram showing the adjustment of the positional deviation in the head X direction and the inclination Θz, FIG. 9 is a diagram showing the adjustment of the head inclination Θx, and FIGS. 10 and 11 are diagrams showing the coordinate axes of the head. is there.
[0010]
As shown in FIGS. 1 to 3, the panoramic X-ray imaging apparatus of the present invention includes a rotary arm front / rear slide mechanism 2 that rotates and slides in a horizontal plane above and below a support 1 and moves up and down on the support 1. The X-ray irradiation unit 3 and the X-ray image receiving unit 4 suspended from the lower surface of the rotary arm front / rear slide mechanism 2 and the lower surface of the rotary arm front / rear slide mechanism 2 are opposed to the front surface of the head while sliding. Forehead support front / rear slide mechanism 5 for positioning, side head support left / right independent slide mechanism 6 for positioning the head side surface while opening and closing the head side surface, and the side surface of the face provided in the vicinity of the X-ray irradiation unit 3 A ceiling portion 8 is configured by the side camera 7 that acquires an image.
On the other hand, a chin rest 9 that moves up and down on the support column 1 is provided below the support column 1, and a front camera 10 that moves up and down together with the chin rest 9 and a sound generator 18 that gives instructions to the patient are provided near the chin rest 9.
[0011]
The side camera 7 and the front camera 10 are electrically connected to a computer 17 that analyzes the acquired image data. The analysis value of the computer 17 adjusts the jaw height, head deviation, and inclination of the patient 11. Correspondingly, the adjustment direction and the adjustment amount for adjusting the position of each part of the positioning adjustment device are instructed on the display unit (not shown), and the operator adjusts according to this instruction so that the positioning adjustment device each part without depending on the judgment of the operator It is comprised so that the position of can be positioned in the correct position.
The position where the computer 17 is attached is not limited to the base end portion of the chin rest 9 and may be separately provided outside the apparatus.
[0012]
Further, as shown in FIG. 5, the chin rest 9 has a marking portion 12 indicating the jaw position of the patient 11, and a sensor 13 for detecting that the jaw is placed in the center of the marking portion 12. Is provided. Further, a bite block 14 is provided in front of the marking portion 12 to adjust the horizontal and left / right orientation of the head by biting.
[0013]
Further, at the standing positions A and B where the patient 11 shown in FIG. 4 is introduced, sensors 16 are provided on both sides of the patient's foot, for example, as shown at the standing position B in FIG. It can be confirmed that the patient 11 has been introduced at a predetermined position.
[0014]
In order to position the patient's head using the positioning adjustment device of the present invention, the coordinate axes of the patient's head are defined in advance as follows as shown in FIGS. That is, in FIG. 10, the vertical direction passing through the center of the head is the Y axis, the rotation angle about the Y axis is Θy, the horizontal direction that penetrates both ear positions is the X axis, and the rotation angle about the X axis is θx. In FIG. 11, the horizontal direction passing through the nose position perpendicular to the Y axis is defined as the Z axis, and the rotation angle around the Z axis is defined as Θz.
[0015]
Next, the operation of the panoramic X-ray imaging positioning adjustment apparatus having the above configuration will be described according to the following imaging procedure.
[0016]
First, as a procedure for introducing a patient to an X-ray imaging apparatus in order to perform panoramic X-ray imaging,
1) Before the patient is introduced, the ceiling portion 8 and the chin rest 9 are moved to the highest position on the support and placed on standby as an initial state of the X-ray imaging apparatus.
2) The surgeon selects the shooting mode according to the type of shooting.
3) The patient 11 instructs to stand in “standing position A” by slightly pulling his chin and facing the front. (Fig. 4)
4) The sensor 16 installed on the base detects that the patient 11 is standing at the “standing position A”. (Fig. 4, Fig. 6)
5) Lower chin rest 9. (Fig. 1)
6) The image data acquired by the front camera 10 is analyzed by a computer, and the movement direction and movement amount of the patient's jaw, that is, the Y-direction position adjustment amount is displayed on the display unit based on the analysis value.
7) The surgeon finely adjusts the chin rest 9 according to the height of the patient's jaw while operating the operation switch according to the instructions of the computer.
As a result, it is displayed on the display section that the height of the jaw of the patient 11 and the height of the placement section on the chin rest 9 are matched, so that the surgeon moves the chin rest 9 down by releasing the operation switch from the hand according to the instructions of the computer. Stops. (Fig. 4)
8) The patient advances to the “standing position B” and instructs the voice generator 18 to put the jaw on the marking portion 12 on the chin rest 9 and bite the bite block 14. This prevents a significant shift in the X and Θy directions. (Fig. 5)
9) The sensor 16 installed on the base 15 detects that the patient has stood in the “standing position B”. (Fig. 4, Fig. 6)
10) The sensor 13 installed in the marking unit 12 detects that the patient's jaw is placed on the marking unit 12 of the chin rest 9. (Fig. 5)
11) The rotary arm 2 is rotated so that the side camera 7 is directly beside the patient 11. (Fig. 7)
12) Move the forehead support forward (in the direction away from the head).
13) Open the side head support 6 to the maximum.
14) Lower the ceiling 8.
15) Stop the descent of the ceiling portion 8 at a position where the height difference between the chin rest 9 and the ceiling portion 8 reaches a specified value.
[0017]
Next, as a positioning procedure for the X-ray imaging apparatus,
Procedure for adjusting the midline with respect to the patient's head.
1) The head width image data acquired by the front camera 10 is analyzed by a computer, and the amount of movement of the side head support 6 is displayed on the display unit based on the analysis value.
2) The operator operates the operation switch and closes the side head support 6 according to the instructions of the computer. As a result, it is displayed on the display section that the side head support 6 is in contact with both sides of the head of the patient 11, so that the operator stops the side head support 6 by releasing the operation switch from the hand according to the instructions of the computer. . 3) The image data acquired by the front camera 10 is analyzed by a computer, and it is determined whether the midline of the patient 11 is vertical and at the center of the chin rest 9. If it is not in the center, the correct direction or direction and the correction amount are displayed on the display unit.
4) The operator corrects the position of the side head support 6 while operating the operation switch according to the instructions of the computer. In this case, the side head support 6 is moved in the x direction indicated by the arrow while maintaining the closed position in 2). As a result, the position shift and the inclination θz of the face of the patient 11 in the x direction are adjusted, and the display unit displays that the head of the patient 11 has been corrected to the correct position. The side head support 6 is stopped by releasing the hand from the operation switch according to the instruction. (Fig. 8)
5) The display unit displays that the head midline of the patient 11 has been correctly adjusted.
[0018]
Next, the procedure for adjusting the ear-ear line.
1) The image data acquired by the side camera 7 is analyzed by a computer, and it is determined whether the eye-eye line of the patient 11 is horizontal based on the analysis value.
2) If not horizontal, the direction or direction to adjust to the correct position and the amount of adjustment are displayed on the display.
3) The surgeon moves the chin rest 9 up and down while operating the operation switch according to the instructions of the computer. At this time, the inclination Θx is adjusted while the chin rest 9 and the ceiling portion 8 move up and down at a constant distance. As a result, the fact that the eye-ear line has been adjusted to the correct position is displayed on the display unit, so that the surgeon releases the operation switch according to the instructions of the displayed computer, so that the chin rest 9 stops.
4) As shown in FIG. 2, the forehead support 5 is closed in accordance with the front surface of the patient's head while sliding in the direction of the arrow.
5) The display section displays that the eye-ear line has been adjusted to the correct position.
[0019]
Next, the alignment procedure for upper and lower jaw # 3.
1) The voice generator 18 instructs the patient 11 to have the mouth open with the teeth engaged.
2) The position image data of the canine obtained by the side camera 7 is analyzed by a computer, and it is determined whether the front and back positions of the head of the patient 11 are correct based on the analysis value.
3) If not correct, the direction or direction to adjust to the correct position and the amount of adjustment are displayed on the display.
4) The surgeon slides the rotary arm 2 back and forth while operating the operation switch according to the instructions of the displayed computer.
5) The display unit displays that the rotary arm 2 has been slid to a predetermined position. The operator removes his / her hand from the operation switch according to the instructions of the displayed computer to stop the rotary arm front / rear slide mechanism 2.
6) The display unit displays that the upper and lower positions are correctly aligned.
[0020]
Next, check the shooting position.
Whether all adjustments are correct is displayed on the display.
When there is a deviation, the position of the deviation is displayed on the display unit, and the adjustment direction or the adjustment direction and the adjustment amount are displayed.
With the above procedure, the correct positioning of the patient 11 with respect to the X-ray imaging apparatus is completed, and preparation for panoramic X-ray imaging is completed.
[0021]
In the above, the case where there is one front camera and one side camera has been described, but the same effect can be obtained when there are a plurality of front cameras and side cameras.
[0022]
【The invention's effect】
As described above, according to the present invention, a front camera and a side camera are provided in an X-ray imaging apparatus, face image data acquired by each camera is analyzed by a computer, and panoramic X-rays are based on the analysis values. By displaying the adjustment direction for adjusting each part of the imaging device to the correct position of the patient's head, or the adjustment direction and the amount of adjustment on the display unit, panoramic X-ray imaging is performed according to the instructions of the displayed computer without depending on the judgment of the operator It is possible to manually position each part of the device at the correct position on the patient's head. This reduces the burden on the operator.
[Brief description of the drawings]
FIG. 1 is a side view showing a configuration of a panoramic X-ray imaging apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram showing the operation of the forehead support.
FIG. 3 is a view showing the operation of the side head support.
FIG. 4 is a diagram showing introduction of a patient.
FIG. 5 is a top view showing a chin rest portion.
FIG. 6 is a top view showing a sensor provided at a standing position of a patient.
FIG. 7 is a diagram showing the operation of the rotating arm.
FIG. 8 is a diagram illustrating adjustment of positional deviation in the head X direction and inclination Θz.
FIG. 9 is a diagram illustrating the adjustment of the head inclination Θx.
FIG. 10 is a diagram showing coordinate axes of the head.
FIG. 11 is a diagram illustrating a coordinate axis of a head.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Rotating arm back-and-forth slide mechanism 3 X-ray imaging part 4 X-ray image receiving part 5 Forehead support back-and-forth slide mechanism 6 Side head support left and right independent slide mechanism 8 Ceiling part 9 Chin rest 10 Front camera 11 Patient 12 Marking 13 and 16 Sensor 14 Byte block 15 base

Claims (2)

A rotating arm front / rear slide mechanism that rotates and slides in a horizontal plane and moves up and down on the support column, an X-ray irradiation unit and an X-ray image receiving unit suspended from the rotary arm front / rear slide mechanism, and a slide facing the front of the head Forehead support front / rear slide mechanism for positioning the front face of the head, side head support left and right independent slide mechanism for positioning the head side face while opening and closing the head side face, and provided near the X-ray irradiation unit A side camera that acquires a side image of the head of the patient, a chin rest that moves up and down on the column, a front camera that is provided near the chin rest and acquires a front image of the patient's head while moving up and down together, and the side surface A computer for determining the position of the patient based on the image data acquired by the camera and the front camera and instructing the adjustment position of each part of the positioning adjustment device; and the adjustment position A panoramic X-ray comprising a display section for instructing, a sensor for detecting that the patient's chin is placed on the chin rest, and a sensor provided on the base side for detecting that the patient is introduced at a predetermined position A panoramic X-ray imaging positioning adjustment device, wherein each part of the imaging device is adjusted to a correct position with respect to a patient's head by manual operation. 2. The panoramic X-ray imaging positioning adjustment apparatus according to claim 1, wherein each of the front camera and the side camera includes a plurality.

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