JPH09117443A - X-ray diagnostic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move the top board through a simple operation to a position easy for an examinee to get on and off by providing a moving means, by which the relative positional relation among the top board, X-ray tube and X-ray radiographic device is moved to a positional relation for getting on and off, and a lowering means by which these top board, etc., are lowered to the position for getting on and off. SOLUTION: When a switch is pressed for the horizontal getting on/off mode, in the control circuit, the amount of rotation and parallel displacement of each part are stored which are detected by the sensor of each driving mechanism, and also, each part is moved to the position for getting on and off. Then, at such positions, the photographing direction of an X-ray generating part 3 and an X-ray photographing part 5 is inclined for a prescribed quantity against the floor surface, so that a part of the photographing part 5 is arranged at a position higher than the lower face of a top board 1. In other words, the X-ray photographing part 5 and the generating part 3 are moved in a direction receding from the top board 1 by the driving mechanisn, while the top board is 1 is simultaneously rotated so as to be parallel to the left and right moving direction. Further, a tilt frame 12 is rotated so as to make the top board 1 horizontal with the floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray diagnosis in which a patient (subject) on a tabletop is exposed to X-rays, an X-ray image transmitted through the subject is photographed and displayed on a television monitor. Regarding the device.

[0002]

2. Description of the Related Art When an X-ray image is taken, it is necessary to take the X-ray image from various directions of a patient according to a diagnosis content. Further, it is necessary to move the position of the contrast agent (barium or the like) in the patient's body to a position suitable for imaging. Conventionally, such movement of the contrast agent and movement in the imaging direction have been performed by having the patient change his / her body position on the tabletop. However, in the case of an elderly person or a physically handicapped patient, it is difficult for the patient to change his / her posture, and it is difficult to take a picture.

In recent years, a multipurpose X-ray diagnostic apparatus has become known as a method for easily performing such X-ray imaging.
The multipurpose X-ray diagnostic apparatus includes a rotatable top plate 101, an X-ray generation unit 103 and an X-ray image capturing unit 104 supported by a rotatable C arm 102. The patient is fixed by the top plate 101 with a fixture and rotates with the top plate 101. The doctor can move the contrast agent and the imaging direction by operating the operation panel and rotating the patient together with the top 101. Further, in the multipurpose X-ray imaging apparatus, by rotating the C-arm 102, the X-ray generation unit 103 and the X-ray image imaging unit 104 can be rotationally moved to change the imaging direction of the X-ray image. There is.

[0004]

In the multipurpose X-ray diagnostic apparatus, since the X-ray image capturing unit 104 moves under the top plate 101, a space is provided below the top plate to move the X-ray image capturing means 104. I need to put it. For this reason, the position of the top plate 101 becomes relatively high, and there is a problem that it is difficult for the patient to get on and off the top plate.

In order to solve such a problem, a method of moving the top plate down when the patient gets on and off has been considered. Conventionally, the top plate is placed with the X-ray image radiographing unit 104 vertical to the floor surface. It was descending 101. Therefore, the distance h between the top plate 101 and the lower part of the X-ray image capturing unit 104 becomes long, and the top plate 101 cannot be fully lowered.
Therefore, according to the present invention, the position of the tabletop is moved to a position where the patient can easily get in and out of the tabletop with a simple operation, so that the patient can easily get on and off the tabletop.
An object is to provide a line diagnostic device.

[0006]

The invention corresponding to claim 1 is:
A top plate on which the subject is placed, an X-ray tube that irradiates the subject with X-rays, and an X-ray image that is provided facing the X-ray tube and that captures an X-ray image that has passed through the subject. The photographing means, the moving means for moving the relative positional relationship of the top plate, the X-ray tube, and the X-ray image photographing means to the positional relationship for getting on and off, and the moving means for maintaining the positional relationship for getting on and off. An X-ray diagnostic apparatus comprising: a top plate, the X-ray tube, and descending means for descending the X-ray image capturing means to a boarding / alighting position.

The top plate, the X-ray tube, and the X-ray image photographing means are arranged in a relative positional relationship suitable for getting on and off, and the top plate, the X-ray tube, and the X-ray are maintained in the relative positional relationship. The image capturing means can be lowered. This allows the top plate to be easily lowered to the entry / exit position.

According to a sixth aspect of the invention, there is provided a top plate on which the subject is placed, descending means for lowering the top plate to the subject loading / unloading position, and an X-ray tube for irradiating the subject with X-rays. An X-ray image photographing means for photographing an X-ray image transmitted through the subject, a supporting means for supporting the X-ray tube and the X-ray image photographing means in a state of being opposed to each other, and the top plate at a boarding / alighting position. When moving
An X-ray diagnostic apparatus comprising: a rotating unit that rotates the supporting unit so that the X-ray tube and the X-ray image capturing unit do not contact the top plate. Since the support member rotates and moves as the top plate descends, the top plate can be easily lowered to the boarding / alighting position.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS. The movement direction is
It is defined and explained as follows. 1) Rolling direction d1 A direction around the patient's body axis (the axis from the head to the feet) with the patient lying on the top as a reference. 2) Long manual direction d7 ... A direction along the body axis with the patient lying on the top as a reference. Longitudinal direction of the patient mounting surface of the top plate. 3) Left-right movement direction d3 ... A direction orthogonal to the long manual direction d7 and parallel to the floor surface. 4) Vertical movement direction d10 ... orthogonal to the long manual direction d7,
In addition, a direction orthogonal to the lateral movement direction d3. 5) Forward / backward movement directions d4, d9 ... Approaching the patient (top plate),
Or the direction to go away. 6) Ascending / descending movement direction d2 ... A direction toward or away from the floor surface. 7) Imaging direction: A direction along a line (hereinafter referred to as an imaging axis) that connects the focal point of the X-ray generation unit and the center of the imaging surface of the X-ray image imaging unit.

1 and 2 are a perspective view and a side view showing the appearance of a multipurpose X-ray diagnostic apparatus to which the present invention is applied. The top plate 1 is a rectangular plate member on which a subject (patient) is placed,
One end in the longitudinal direction is supported by the top plate supporting member 2. The top plate 1 is made of an X-ray transmitting member such as CFRP (carbon fiber reinforced plastic).
The top plate support frame 2 supports the top plate 1,
A drive mechanism 2a for rotating the top plate in the rolling direction d1 is provided. The X-ray generator 3 irradiates the subject with X-rays, and an X-ray tube (not shown) that generates X-rays from the focus and X-rays generated by the X-ray tube are irradiated in a predetermined manner. It is equipped with a diaphragm mechanism that narrows down the X-rays so that they are exposed to the field. The X-ray generation unit holder 4 supports the X-ray generation unit 3 and includes a drive mechanism 4a that translates the X-ray generation unit 3 in the longitudinal direction d9. The X-ray image capturing section 5 captures an X-ray image transmitted through the subject, and is arranged such that its X-ray image capturing surface faces the X-ray exposure port of the X-ray generating section 3. . The X-ray image capturing unit 5 includes an image intensifier (hereinafter, referred to as “I.
I. 5a, an optical system 5b for transmitting the optical image, and a camera 5c for converting the transmitted optical image into an electric image signal are integrally provided. An image processing circuit (not shown) performs predetermined image processing on the image signal output from the camera 5c and outputs the image signal to a monitor (not shown). The monitor displays an X-ray image based on the image signal sent from the image processing circuit. I. I. The holder 6 is an I.D.
I. 5a, and I.5a. I. A drive mechanism 6a is provided for translating 5a in parallel along the longitudinal direction d4. Incidentally, I. I. The entire X-ray image capturing unit 5 moves with the movement of 5a. The C-arm 7 includes an X-ray generator holder 4, an I.D. I. The holders 6 are fixedly supported. The C-arm holder 8 supports the C-arm 7, and includes a drive mechanism 8a that slides the C-arm 7 along the arm direction d8. At this time, the X-ray generator 3 and X
The line image photographing unit 5 rotates about an axis orthogonal to the left-right movement direction d3. The rotation center axis of the X-ray generation unit 3 and the X-ray image photographing unit 5 when the drive mechanism 8a is driven is referred to as a C-arm rotation center axis α. The holder support frame 9 supports the C-arm holder 8, and the C-arm holder 8
Is provided with a drive mechanism 9a that translates in parallel with the horizontal direction d3. The rotary up-and-down moving frame 10 firmly supports the holder supporting frame 9. Rotating vertical movement frame 10
Is internally provided with a drive mechanism 10a for rotating the vertical rotating frame 10 with respect to the long manual frame 11. When the drive mechanism 10a is driven, the rotating vertical movement frame 10
It rotates along the direction d6. At this time, the X-ray generation unit 3 and the X-ray image photographing unit 5 rotate about an axis parallel to the left-right movement direction d3. The rotation center axis of the X-ray generation unit 3 and the X-ray image photographing unit 5 when the drive mechanism 10a is driven is referred to as a C-arm rotation center axis β. The C-arm rotation center axis β is provided at a position intersecting with the C-arm rotation center axis α. The point where the C-arm rotation axis β and the C-arm rotation axis α intersect is referred to as the C-arm center CC. Long manual frame 11
Supports the rotating vertical moving frame 10 and includes a drive mechanism 11a for moving the rotating vertical moving frame 10 along the vertical moving direction d10. Tilting frame 12
Supports the long manual frame 11, and is provided with a drive mechanism 12a that translates the long manual frame 11 along the long manual direction d7. In addition, the tilting frame 12
Securely supports the top plate support frame 2. Stand 13
Is for supporting the tilting frame 12, and includes a drive mechanism 13 a for rotating the tilting frame 12 and the tilting frame 1.
The driving mechanism 13b is provided for translating 2 in parallel along the ascending / descending movement direction d2. By performing the rotation and the parallel movement in conjunction with each other, the frame 13 can raise and lower the tilting frame 12 along the tilting direction d5. In addition, stand 1
3 is fixed to the floor of the examination room. Each drive mechanism is a top plate 1
It is provided close to one side surface of the
A space for boarding / alighting and diagnosis is formed on the other side surface side of the top plate (hereinafter referred to as a boarding / alighting side surface of the top plate). Drive mechanisms 2a, 4a, 6a, 8a, 9a, 10a, 11a, 1
The sensors 2a, 13a, and 13b each include a sensor that detects a rotation amount or a parallel movement amount of each unit. The movement amount is an amount that indicates an absolute position within the movable range of the drive mechanism.

3 and 4 are a block diagram showing a control unit of a multipurpose X-ray diagnostic apparatus to which the present invention is applied and a configuration diagram of an operation panel. The control circuit 14 controls the operation of each drive mechanism based on the operation of each switch and lever of the operation panel 15. The lever 16 directs the parallel movement of the C arm 7 and the rotation of the top plate 1. When the lever 16 moves left or right, the control circuit 14 drives the drive mechanism 9a to move the C arm 7 leftward or rightward along the left-right movement direction d3. When the lever 16 moves up or down, the control circuit 14 drives the drive mechanism 12a to move the C arm 7 in the head direction or the foot direction along the long manual direction d7. When the lever 16 rotates left (twists) or rotates right, the control circuit 14 drives the drive mechanism 2a to rotate the top plate 1 counterclockwise or clockwise along the rolling direction d1. The raising / lowering lever 17 is for instructing the raising / lowering of the raising / lowering frame 12. Raising lever 1
When 7 moves to the left or right, the control circuit 14 causes the drive mechanism 13 to move.
Drive a and 13b to move the tilting frame 12 in the tilting direction d5.
Move along the direction of tilting or raising. The diaphragm lever 18 is for adjusting the X-ray exposure range. When the diaphragm lever 18 moves, a diaphragm control circuit (not shown) drives the diaphragm mechanism in the X-ray generator 3 in accordance with this movement to change the X-ray exposure range. The C-arm rotation lever 19 is an instruction to rotate the C-arm 7. C
When the arm rotation lever 19 moves left or right, the control circuit 1
Reference numeral 4 drives the drive mechanism 10a to rotate the X-ray generation unit 3 and the X-ray image photographing unit 5 counterclockwise or clockwise about an axis parallel to the left-right movement direction d3. When the C-arm rotation lever 19 moves up or down, the control circuit 14 causes the drive mechanism 8 to move.
A is driven to rotate the X-ray generator 3 and the X-ray image radiographer 5 counterclockwise or clockwise about an axis parallel to the long manual direction d7. The X-ray fluoroscopic switch 20 is for instructing the start and end of fluoroscopic X-ray imaging. When the X-ray fluoroscopic switch 20 is pressed, the X-ray generator 3 starts X-ray exposure. Further, at this time, the X-ray image capturing unit 5 outputs the X-ray image as an image signal. This image signal is sent to the monitor via the image processing circuit and displayed as an image. During the fluoroscopic imaging, the control circuit 14 drives the drive mechanism 6a to control the imaging surface of the X-ray image imaging unit 5 as close to the top 1 as possible. Horizontal boarding mode switch 21
Is for moving each part including the top plate 1 to the position for getting on and off. The return switch 22 returns each part including the top 1 from the position for getting on and off to the original shooting position.
The raising switch 23 is for raising the top plate 1 and the C arm 7. While the raising switch 23 is being pressed, the control circuit 14 drives the drive mechanism 13b to raise the top plate 1 and the C arm 7. The lowering switch 24 is for lowering the top plate 1 and the C arm 7. While the lowering switch 24 is being pressed, the control mechanism 13b is driven to lower the top plate 1 and the C arm 7.

Next, the operation of raising and lowering the top plate of the present invention will be described. When the horizontal boarding / alighting mode switch 21 is pressed, the control circuit 14 stores the rotation amount or the parallel movement amount of each part detected by the sensor of each drive mechanism in the internal return position storage part. After the storage is completed, the control circuit 14 moves each part to the position for getting on and off.

FIG. 5 is an external view when each part is moved to a position for getting on and off. When each part is in a position for getting on and off, the X-ray generation part 3 and the X-ray image radiographing part 5 are tilted by a predetermined amount with respect to the floor surface, and part of the X-ray radiographing part 5 is a lower surface of the top plate 1. It is arranged to be higher. The amount of tilt at this time is such that the distance h from the top plate 1 to the lower portion of the X-ray image unit 4 is shorter than when the X-ray imaging unit 5 is vertically arranged below the top plate 1, and X A space is provided between the line generation unit 3 and the top plate 1 so that a patient can get on and off.

The control circuit 14 drives each drive mechanism in the following order in order to arrange each unit as shown in FIG. (1) The drive mechanism 6a is driven to move the X-ray imaging unit 5 in a direction away from the top plate, and the distance between the X-ray generation unit 3 and the X-ray image capturing unit 5 is increased. (2) The drive mechanism 4a is driven to move the X-ray generation unit 3 in a direction away from the top plate, and the distance between the X-ray generation unit 3 and the X-ray image capturing unit 5 is increased. (3) The driving mechanism 2a is driven to move the top plate 1 in the horizontal direction d.
Rotate to be parallel to 3. At this time, the X-ray generator 3
The X-ray image photographing unit 5 is retracted to a position where it does not come into contact with the rotating top plate 1. (4) The drive mechanism 13a is driven to rotate the tilting frame 12 so that the top plate 1 becomes horizontal with the floor surface. (5) The drive mechanism 9a is driven to move the C arm 7 to the position farthest from the top plate 1. (6) The drive mechanism 10a is driven to rotate the C arm 7 so that the shooting direction is orthogonal to the long manual direction d7. (7) The drive mechanism 8a is driven, and the C arm 7 is slid and rotated so that the photographing direction is inclined with respect to the left-right movement direction d3 by a predetermined rotation angle set in advance. (8) The driving mechanism 11a is driven to move the C arm 7 in parallel upward so that the X-ray imaging means 5 approaches the top plate 1 as much as possible within a range where the X-ray imaging means 5 does not contact the top plate 1. (9) The drive mechanism 12a is driven to move the C arm 7 from the foot of the patient. (10) The driving mechanism 13b is driven to drive the top plate 1 and the C arm 7.
Etc. are lowered to the floor surface. At this time, the ascending / descending operation is performed with the relative positional relationship among the top plate 1, the X-ray generation unit 3, the X-ray image capturing unit 5, and the C arm 7 being constant. The control circuit 14 stops the drive of the drive mechanism 13b when the parallel movement amount of the drive mechanism 13b reaches a predetermined value (in a range where the X-ray image capturing unit 5 does not contact the floor surface).

The above operations (1) to (10) are sequentially performed while the horizontal boarding / alighting mode switch 21 is pressed,
When the pushing of the horizontal boarding / alighting mode switch 21 is stopped in the middle of each operation, the operation of each part is stopped at that time. When the operations (1) to (10) are completed, the configuration of each part is set to the position for getting on and off.

When the X-ray fluoroscopic imaging is performed again, the return switch 22 is pressed. While the raising switch 23 is being pressed, the control circuit 14 drives the drive mechanism 13b to raise the top plate 1, the C-arm 7, etc. above the floor surface. When the return switch 22 is further pressed and held, the control circuit 14
Drives each drive mechanism based on the data stored in the return position storage unit, and the top plate 1, the C arm 7, the X-ray generation unit 3, X
The position of the line image photographing unit 5 is moved to the position before the horizontal boarding / alighting mode switch 21 is pressed. After the movement of each unit is completed, the X-ray fluoroscopic switch 20 is pressed to perform X-ray fluoroscopic imaging. The return switch 22 may be used as needed, and the top switch 1, the C-arm 7 and the like may be raised by the raising switch 23 without pressing the return switch 22 to perform X-ray fluoroscopy.

According to the first embodiment, the following effects can be obtained. Horizontal boarding mode switch 21
Since the configuration of the top plate 1, the C-arm 7, etc. is sequentially moved by simply pressing, each part can be moved to a position where the patient can easily get on and off with a simple operation. Since the X-ray imaging unit 5 is inclined so that the distance h between the top plate 1 and the lower portion of the X-ray image capturing unit 5 is small, the top plate 1 can be lowered to a low position. Since the X-ray image radiographing unit 5 is tilted by the sliding rotation of the C-arm 7, it is not necessary to provide a complicated mechanism for retracting the X-ray image radiographing unit 5 only for lowering the tabletop. X
Since a space in which the patient can get on and off is secured between the line generation unit 3 and the top plate 1, the patient can easily get on and off. Since the distance (SID) between the X-ray image capturing unit 5 and the X-ray generation unit 3 is widened by driving the drive mechanism 6a and the drive mechanism 4a, the distance between the X-ray generation unit 3 and the top plate 1 is increased. The space can be increased, and the patient can easily get on and off. Since the position of each part at the time of pushing the horizontal boarding / alighting mode switch 21 is stored, the position of each part can be easily returned to the original position at the time of photographing. Since the movement to the boarding / alighting position is stopped by releasing the hand from the horizontal boarding / alighting mode switch 21, the operation of each part can be quickly stopped when an abnormality occurs. The tilt direction of the shooting direction is
Since the X-ray imaging unit 5 is oriented so as not to project from the lower portion of the top plate 1 to the side of the boarding / alighting side, there is less risk of the patient tripping during boarding / alighting.

The movement of each part to the position for the boarding / alighting mode is not limited to the order of (1) to (10) described above, and the order may be changed appropriately. Further, the movement of each unit may be performed at the same time. Further, although the first embodiment has been described with respect to the over-tube type multipurpose X-ray diagnostic apparatus, it is applied to the under-tube type multipurpose X-ray diagnostic apparatus in which the X-ray generation unit is arranged below the top plate. You can also

Next, a second embodiment of the present invention will be described. The description of the same parts as those in the first embodiment will be omitted. In the second embodiment, the C-arm 7 slides and rotates in conjunction with the lowering of the top plate 1.

When the horizontal entry / exit mode switch 21 is pressed, the control circuit 14 stores the rotation amount or the parallel movement amount of each part detected by the sensor of each drive mechanism in the internal return position storage part. Next, the control circuit 14 drives each drive mechanism in the following order. (1) The drive mechanism 6a is driven to move the X-ray imaging unit 5 in a direction away from the top plate, and the distance between the X-ray generation unit 3 and the X-ray image capturing unit 5 is increased. (2) The drive mechanism 4a is driven to move the X-ray generation unit 3 in a direction away from the top plate, and the distance between the X-ray generation unit 3 and the X-ray image capturing unit 5 is increased. (3) The driving mechanism 2a is driven to move the top plate 1 in the horizontal direction d.
Rotate to be parallel to 3. At this time, the X-ray generator 3
The X-ray image photographing unit 5 is retracted to a position where it does not come into contact with the rotating top plate 1. (4) The drive mechanism 13a is driven to rotate the tilting frame 12 so that the top plate 1 becomes horizontal with the floor surface. (5) The drive mechanism 9a is driven to move the C arm 7 in parallel to the position farthest from the top plate 1. (6) The drive mechanism 10a is driven to rotate the C arm 7 so that the shooting direction is orthogonal to the long manual direction d7. (7) The drive mechanism 8a is driven to slide and rotate the C arm 7 so that the shooting direction is orthogonal to the left-right movement direction d3. (8) The drive mechanism 11a is driven to move the C arm 7 in parallel so that the top plate 1 and the X-ray imaging unit 5 do not come into contact with each other when the C arm 7 is slid and rotated. (9) The drive mechanism 12a is driven to move the C arm 7 from the foot of the patient. (10) The driving mechanism 13b is driven to drive the top plate 1 and the C arm 7.
Etc. are lowered to the floor surface. At this time, the drive mechanism 8a is simultaneously driven, and the C arm 7 is slid and rotated to a position where the lower portion of the X-ray imaging unit 5 does not contact the floor surface and is as close to the floor surface as possible.

According to the second embodiment, the following effects can be obtained. Since the slide rotation amount of the C-arm 7 changes according to the descending amount of the top plate 1, the distance between the X-ray generation unit 3 and the top plate 1 changes according to the height of each top plate 1.
When the position of the top plate 1 is high, the distance between the X-ray generation unit 3 and the top plate 1 becomes large, and the patient can easily get on and off. Further, the height of the top plate 1 can be lowered to the limit of the moving range of the drive mechanism 13a, if necessary. However, in this case, the space between the X-ray generation unit 3 and the top plate 1 becomes extremely small.

The movement of each part to the position for the boarding / alighting mode is not limited to the order of (1) to (10) described above, and the order may be changed appropriately. Further, the movement of each unit may be performed at the same time. Further, although the second embodiment has been described with respect to the over-tube type multipurpose X-ray diagnostic apparatus, it is applied to the under-tube type multipurpose X-ray diagnostic apparatus in which the X-ray generation unit is arranged below the top plate. You can also

[0023]

As described above in detail, according to the present invention, the position of the top plate can be moved to a position where a patient can easily get on and off the vehicle by a simple operation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.

FIG. 2 is a side view showing the appearance of a multipurpose X-ray diagnostic apparatus to which the present invention has been applied.

FIG. 3 is a block diagram showing a control unit of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.

FIG. 4 is a configuration diagram of an operation panel of a multipurpose X-ray diagnostic apparatus to which the present invention has been applied.

FIG. 5 is an external view when each part is moved to a position for getting on and off.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Top plate 3 ... X-ray generation part 5 ... X-ray image photographing part 7 ... C arm 5 ... C arm holder 21 ... Horizontal loading / unloading mode switch 22 ... Return switch

Claims (9)

[Claims] 1. A top plate on which a subject is placed, an X-ray tube that irradiates X-rays toward the subject, and an X-ray image that is provided so as to face the X-ray tube and that passes through the subject. The X-ray image photographing means for photographing, the moving means for moving the relative positional relationship of the top plate, the X-ray tube, and the X-ray image photographing means to the positional relationship for getting on and off, and the positional relationship for getting on and off. The top plate, which is kept
An X-ray diagnostic apparatus comprising: the X-ray tube, and a descending unit that descends the X-ray image capturing unit to a boarding / alighting position. 2. The moving means makes the top plate parallel to the floor surface and the imaging directions formed by the X-ray generation means and the X-ray image imaging means are inclined with respect to the top plate. The X-ray diagnostic apparatus according to claim 1, wherein the X-ray diagnostic apparatus is provided. 3. The subject is a human body, and the moving means has the top plate, the X-ray tube, and the X-ray image capturing means so that a space where the subject can get on and off is formed on a side of the top plate. The X-ray diagnostic apparatus according to claim 1 or 2, wherein the X-ray diagnostic apparatus moves. 4. An input means for instructing movement to a boarding / alighting position, said moving means comprising said top plate, said X-ray tube and said X when said moving means is instructed to move to a boarding / alighting position.
The line image photographing means is moved to a positional relationship for getting on and off, and the descending means is arranged after the movement of the moving means is completed.
The X-ray diagnostic apparatus according to claim 1, wherein the X-ray diagnostic apparatus performs a descending operation. 5. The moving means, the top plate, the X-ray tube, so that the imaging direction is orthogonal to the longitudinal direction of the top plate,
The X-ray diagnostic apparatus according to any one of claims 2 to 4, wherein the X-ray image capturing means is moved. 6. A top plate on which a subject is placed, descending means for lowering the top plate to a subject's loading / unloading position, an X-ray tube for irradiating X-rays toward the subject, and the subject. X-ray image capturing means for capturing an X-ray image, supporting means for supporting the X-ray tube and the X-ray image capturing means in a state of being opposed to each other, and the X-ray when the top plate moves to a boarding / alighting position. An X-ray diagnostic apparatus comprising: a rotating tube that rotates the supporting means so that the X-ray image capturing means does not come into contact with the top plate. 7. The X-ray diagnosis according to claim 6, wherein the supporting means is a C-arm, and the rotating means slides and rotates the C-arm according to the lowering of the top plate. apparatus. 8. The rotating means rotates the C-arm so that one of the X-ray generating means and the X-ray image capturing means is as close to the floor surface as possible. The described X-ray diagnostic apparatus. 9. The method according to claim 6, wherein the rotating means rotates the X-ray tube and the X-ray image capturing means in a plane orthogonal to a longitudinal direction of the top plate. Item 10. The X-ray diagnostic apparatus according to any one of items 8.