JPH09122115A - X-ray diagnostic system and fixing band for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely photograph satisfactory X-ray images from various directions by rotating a top plate having an almost flat testee placing surface based on the output of a rotation instructing means for instructing the rotation of the top plate. SOLUTION: A top plate 1 is a rectangular plate member for placing a testee (patient) on it, and one terminal in its lengthwise direction is supported by a top plate supporting part 2. The reagent placing surface of the top plate 1 is made into a plane (or an actuate plane having big curvature) and the thickness of the top plate 1 is made equal over the almost entire surface. The top plate supporting part 2 is provided with a driving mechanism for rotating the top plate 1 in a rolling direction d1 and the top plate supporting part 2 can endlessly and continuously rotate the top plate 1 in one direction. Then, the rotation of the top plate 1 to left or right along the rolling direction d1 is instructed by the rotation instruction switch of a control panel, and an infinite rotation mode, ±20 deg. rotation mode or ±2 deg. rotation mode is selected by a rotation range selection switch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray diagnostic apparatus for irradiating a patient (subject) on a tabletop with X-rays, photographing an X-ray image transmitted through the patient, and displaying the image on a television monitor. Regarding

[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.
Generally, a multipurpose X-ray diagnostic apparatus includes a top board 101 on which a patient is placed.
And an X-ray generation unit 103 and an X-ray image photographing unit 104 supported by a rotatable C-arm 102. the patient,
The top plate 101 is fixed by a fixing band, and the top plate 10 is fixed.
Rotates with 1. 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. In addition, an enema device 106 for injecting a contrast agent or air into a patient is provided on the top plate of the multipurpose X-ray diagnostic apparatus.

[0004]

First, the conventional multipurpose X
In the X-ray diagnostic apparatus, since the subject mounting surface of the top plate 101 has an arcuate shape with a relatively small curvature, when the X-ray image is photographed from the side of the patient, the top plate is within the X-ray image. There was a problem that a good X-ray image could not be obtained because it overlapped with the patient part. Further, the patient is fixed to the top plate 101 by a fixing band. However, in the related art, since the top plate 101 is provided with fittings and holes for attaching the fixing band, there is a problem that these fittings and holes are reflected in the X-ray image and a good X-ray image cannot be obtained.

Secondly, the conventional multipurpose X-ray diagnostic apparatus has a double-support structure for supporting the top plate at both ends in the longitudinal direction of the top plate. For this reason, the top plate supporting portion becomes an obstacle, and the top plate 101
There is a problem that it is difficult for a doctor to come and go between the drive mechanism of the C arm 7 and the drive mechanism of the C arm 7.

Thirdly, in the conventional multipurpose X-ray diagnostic apparatus, the enema 106 is provided on the subject mounting surface side of the top plate 101 and on the foot side. Therefore, the space on the side of the foot of the patient is narrowed, the position of the patient is high when the top plate 101 is tilted, and it is difficult for the patient to get in and out of the enema 106. There was a problem.

Fourthly, in the multipurpose X-ray diagnostic apparatus, the patient is fixed to the top plate 101 by using a fixing band, but the order of attachment when fixing is complicated and difficult to understand.
It took time to fix the patient.

Fifth, since the conventional multipurpose X-ray diagnostic apparatus cannot limit the rotation angle of the top plate 101,
There is a problem that the top plate 101 is rotated more than necessary due to an operation error or the like.

[0009]

The invention corresponding to claim 1 is:
The subject is placed, and a top plate having a substantially flat subject mounting surface, rotation instruction means for instructing rotation of the top plate, and based on the output of the rotation instruction means, the top plate A top plate rotating means for rotating, an X-ray tube for irradiating the subject with X-rays, and an X-ray image photographing unit for photographing an X-ray image transmitted through the subject. X-ray diagnostic apparatus. In the invention according to claim 1, since the rotating top plate is substantially flat, a good X-ray image can be obtained.

According to a second aspect of the present invention, a top plate on which a subject is placed, a top plate supporting means for cantilever supporting the top plate, a rotation instruction means for instructing rotation of the top plate, and the rotation instruction. Based on the output of the means, a top rotating means for rotating the top, an X-ray tube for irradiating the subject with X-rays, and an X-ray for capturing an X-ray image transmitted through the subject. An X-ray diagnostic apparatus comprising an image capturing unit. Claim 2
In the corresponding invention, the top plate supporting means is cantilevered, so that a doctor can easily go in and out of both side surfaces of the top plate.

According to a fourth aspect of the present invention, a top plate on which a subject is placed, rotation instruction means for instructing rotation of the top plate, rotation range selection means for selecting a rotatable range of the top plate, and the rotation. A top rotation means for rotating the top in the rotation range selected by the rotation range selection means based on the output of the instruction means; and an X-ray tube for irradiating the subject with X-rays, An X-ray diagnostic apparatus comprising: an X-ray image capturing unit configured to capture an X-ray image transmitted through the subject. In the invention according to claim 4, since the rotatable range of the top plate can be switched, the subject is less likely to be rotated more than necessary.

According to a seventh aspect of the present invention, an X-ray is fixed to the top plate when the X-ray is exposed to the subject and an X-ray image is taken.
In a fixed band for a line diagnostic device, a top plate orbiting band part that orbits the top plate, a subject orbiting band part that is fixed to the top plate orbiting part and orbits the subject, the subject and the ceiling. A top plate subject orbiting band part that orbits the plate integrally is provided. The invention corresponding to claim 7 is provided with a band portion that orbits the top plate, a band portion that orbits the subject, and a band part that orbits the top plate and the subject integrally. Can be firmly fixed.

According to an eighth aspect of the present invention, when an X-ray is radiated to the subject and an X-ray image is taken, the subject is fixed to the top plate X.
In a fixed band for a line diagnostic device, a plurality of pairs of detachable members that can be detached and attached, the detachable members having different color arrangements,
In addition, the corresponding pair of attachment / detachment members have the same color scheme. In the invention according to claim 8, since the attachment / detachment members are color-coded, it is easy to identify the attachment / detachment members.

According to a ninth aspect of the present invention, when the X-ray is irradiated onto the subject and an X-ray image is taken, the subject is fixed to the top plate.
In a fixed band for a line diagnostic device, a plurality of pairs of detachable members are provided, the detachable members having different shapes of marks, and the corresponding pairs of detachable members have the same shape of mark. It is characterized by having. In the invention corresponding to claim 8, since the same mark is given to the corresponding pair of the attaching / detaching members, the attaching / detaching members can be easily identified.

[0015]

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 subject 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 portion 2. The top plate 1 is made of an X-ray transmitting member such as CFRP (carbon fiber reinforced plastic). The subject mounting surface of the top plate 1 is a flat surface (or an arc surface having a large curvature), and the thickness of the top plate 1 is substantially uniform over the entire surface. The top support 2 is the top 1.
And a drive mechanism for rotating the top plate in the rolling direction d1. The top plate support 2 is
The top plate 1 can be continuously rotated in one direction endlessly. The X-ray generation unit 3 irradiates the patient 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 in a predetermined irradiation field. It is equipped with a diaphragm mechanism that narrows the X-rays so that the X-rays are exposed. 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 unit 5 captures an X-ray image transmitted through the patient, and is arranged such that its X-ray image capturing surface faces the X-ray exposure port of the X-ray generating unit 3. The X-ray image capturing unit 5 is an image intensifier (hereinafter referred to as II) that converts an X-ray image into an optical image.
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. 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 is
An X-ray image is displayed 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. C arm holder 8
Is a drive mechanism 8a for supporting the C arm 7 and slidingly moving the C arm 7 along the arm direction d8.
It has. At this time, the X-ray generation unit 3 and the X-ray image capturing unit 5 rotate 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 includes a drive mechanism 9a that translates the C-arm holder 8 in the left-right direction d3. The rotating up-and-down moving frame 10 is the holder supporting frame 9
Is firmly supported. The rotary up-and-down moving frame 10 includes a drive mechanism 10 a for rotating the rotary up-and-down moving frame 10 with respect to the long manual frame 11. When the drive mechanism 10a is driven, the rotating vertical movement frame 10 rotates along the direction d6. At this time, the X-ray generation unit 3 and the X-ray image photographing unit 5
Rotates 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. The long manual frame 11 supports the rotary up-and-down moving frame 10 and drives the rotary up-and-down moving frame 10 along the vertical moving direction d10.
1a. The tilting frame 12 supports the long manual frame 11, and includes a drive mechanism 12a that translates the long manual frame 11 in the long manual direction d7. In addition, the tilting frame 12 includes the top plate supporting portion 2
Is firmly supported. The gantry 13 supports the tilting frame 12, and a drive mechanism 13a for rotating the tilting frame 12 and the tilting frame 12 are moved up and down in the moving direction d2.
A drive mechanism 13b that moves in parallel along the direction is provided. 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. The pedestal 13 is fixed to the floor of the examination room. Each drive mechanism is provided close to one side surface of the top plate 1, so that 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). Has been done.

FIG. 3 is a structural diagram showing the internal structure of the top plate supporting portion 2 of the multipurpose X-ray diagnostic apparatus to which the present invention is applied. The top plate support portion 2 includes a support arm frame 14, a bearing 15, and a gear 1.
6, top plate support frame 17, signal line 18a, signal line 18
b, a slip ring 19, a motor 20, and a gear 21. The top plate arm frame 14 is partially fixed to the tilting frame 12. The bearing 15 includes an outer ring 15a and an inner ring 1
5b is a ball bearing that is rotatably connected to the outer ring 15a. The gear 16 is fixed to the inner ring 15b of the bearing 15, and is thereby rotatably connected to the top plate arm frame 14. At this time, the rotation center axis of the gear 16 is parallel to the long manual direction d7. Further, the gear 16 has a cavity inside. The top plate support frame 17 includes a frame plate 17a fixedly supported by the gear 16 and a frame plate 17b vertically fixed to the frame plate 17a. Frame plate 1
7a is configured to serve as a scaffold for the subject when the top 1 is tilted. The frame plate 17b fixes and supports the top plate 1. Accordingly, the top plate support frame 17 supports the top plate 1 so that the longitudinal direction of the top plate 1 is parallel to the rotation center axis of the gear 16. The signal line 18a and the signal line 18b send a control signal for controlling the enema 22 (described later). The slip ring 19 is a double-ring-structure slip ring having an outer cylinder 19a and an inner cylinder 19b that are rotatably connected to each other, and is provided in a cavity inside the gear 16. The brush electrode of the outer cylinder 19a slidably contacts the electrode of the inner cylinder 19b. The outer cylinder 19a is fixed to the top plate arm frame 14, and the inner cylinder 19b.
Is fixed to the top plate support frame 17. A signal line 18b is connected to the electrode of the inner cylinder 19b, and a signal line 18a is connected to the outer electrode 19a, so that the signal line 18a and the signal line 18b are electrically connected so as to be continuously rotatable. The motor 20 rotates based on the control signal of the control circuit 41, and its rotation shaft has a gear 21.
Is fixed. The gear 21 is in contact with the gear 16 and rotates the gear 16 as the motor 20 rotates. The motor 20 is also provided with a rotation angle detector 20a that detects the amount of rotation. The enema device 22 injects a contrast agent and air into the intestine of a patient.

4 (a) and 4 (b) are a side view and a front view showing an enema 22 of a multipurpose X-ray diagnostic apparatus to which the present invention is applied. The enema device 22 includes a contrast agent bottle 23, an enema pump 24, a contrast agent tube 25, and an air supply tube 26. The contrast agent bottle 23 is a container for containing a contrast agent. The enema pump 24 is connected to the signal line 1 from the control circuit 41.
The contrast agent and air are delivered based on the signal sent via 8b, and are provided at the bottom of the contrast agent bottle 23. When the contrast agent is delivered, the contrast agent in the contrast agent bottle 23 is sucked and delivered to the contrast agent tube 25. When air is supplied, the air in the vicinity of the enema pump 24 is sucked and sent to the air supply tube 26. This enema 22 is provided on the back side of the subject mounting surface of the top plate 1 (hereinafter referred to as the back face of the top plate 1) and in the vicinity of the top plate support portion 2.

5 (a) and 5 (b) are views for explaining the fixation of the patient to the top 1. Subject fixing band 27a, 2
7b and 27c are bands for fixing the patient to the top 1. The subject fixing bands 27a, 27b, 27c are
The patient is fixed at three locations along the axial direction of the patient. The foot fixing band 28 fixes the vicinity of the patient's ankle to the top plate 1. The foot fixing band 28 is attached to the top plate supporting portion 2 of the top plate 1. Hand grip 2
Reference numeral 9 is for the patient to grip, and is provided near the patient's head (a position from the side surface of the top 1 opposite to the top support 2).

FIG. 6 is a view showing the back surface of the top plate 1 of the multipurpose X-ray diagnostic apparatus to which the present invention is applied. Velcro 3
Reference numeral 0 indicates that the subject fixing bands 27a, 27b, 27c are detachably attached to the top plate 1. The width of the magic tape 30 along the longitudinal direction of the top plate 1 is wider than the width of each of the subject fixing bands 27a, 27b, 27c, and the attachment positions of the subject fixing bands 27a, 27b, 27c are set to the patient's size. It can be adjusted accordingly. Further, the magic tape 30 is continuously provided between the position where the subject fixing band is attached to the head of the patient most and the position where the subject fixing band is attached to the foot of the patient most. The subject fixing band can be attached to the position. Mark 3
Reference numerals 1a, 31b and 31c respectively indicate positions to which the subject fixing bands 27a, 27b and 27c are attached when fixing a standard size patient.

FIG. 7 is a diagram showing the structure of the object fixing bands 27a, 27b, 27c (hereinafter referred to as the object fixing band 27) of the multipurpose X-ray diagnostic apparatus to which the present invention is applied. The subject fixing band 27 includes the top plate orbiting band 32, the subject orbiting bands 33, 33 ', and the top plate orbiting band 3.
4.34 'and band 35 are provided. The top board wrapping band 32 wraps around the top board 1, and has a velcro tape 3 attached to the velcro tape 30 at the center thereof.
2b. Velcro tapes 32a and 32a ', which are attached to each other, are fixed to both ends of the top plate winding band 32, respectively. The subject orbiting bands 33, 33 'are for orbiting and fixing the patient.
One ends of the subject orbiting bands 33, 33 'are fixed to the top plate orbiting band 32. In addition, the object orbiting band 33
The velcro tape 33a and the velcro tape 33a 'to be attached to each other are fixed to the other end of 33'. In addition, the magic tape 33a 'of the subject orbiting band 33'
The velcro tape 33b 'is fixed to the back side of the fixing surface. The top plate object orbiting bands 34, 34 'circulate and fix the top plate 1 and the patient. One end of the top plate orbiting band 34 is fixed to the top plate orbiting band 32. The other end of the top plate orbiting band 34 'is connected to the band 3
It is fixed to a slide member 35 that slides with respect to 6. Further, a velcro tape 34a and a velcro tape 34a 'to be attached to each other are fixed to the other ends of the subject orbiting bands 34, 34'. Further, on the back side of the Velcro tape 34a fixed surface of the subject orbiting band 34, the Velcro tape 34 attached to the Velcro tape 33b '.
b is fixed. One end of the band 36 is fixed to the top plate circling band 32. Also, the top plate orbiting band 32
On the band 36, a magic tape 32c and a magic tape 36b are fixed to a portion located on the back surface of the top plate 1. Also, on the other end of the band 36, the velcro 3
Velcro tape 36a attached to 2c and 34c 'is fixed. It should be noted that the corresponding pair (the pair to be pasted)
The velcro tapes of have the same color, and the non-compliant velcro tapes have a different color. For example,
Velcro tape 30, 32b is white, Velcro tape 3
2a and 32a 'are blue, Velcro tapes 33a and 33
a'is yellow, Velcro 33b 'and 34b are green,
The magic tapes 34a and 34a 'are colored black, and the magic tapes 32c, 36b and 36a are colored red. The colors of the velcro tapes do not necessarily have to be different from each other, and some pairs may have the same color as long as they do not cause confusion when they are attached.

FIG. 8 is a configuration diagram showing the configuration of the handgrip 29 of the multipurpose X-ray diagnostic apparatus to which the present invention is applied.
The hand grip 29 includes a bar 37 and fixed portions 38a and 38.
b, grip switches 39a and 39b are provided. The bar 37 is to be gripped by the patient, and is formed by bending a cylindrical pipe into a U-shape. Fixed part 38a
38 b detachably attaches the bar 37 to the top plate 1, and is provided at both ends of the bar 37.
The fixed portions 38a and 38b are a guide portion that slides with respect to the top plate 1, and the top portion 1 and the fixed portion 38a that rotate by rotating.
-It is equipped with a knob for fixing 38b. The grip switches 39a and 39b are switches for detecting that the patient holds the bar 37. The signals of the grip switches 39a and 39b are sent to the control circuit 41 via the connector 40.

FIG. 9 is a block diagram showing a control unit of a multipurpose X-ray diagnostic apparatus to which the present invention is applied. Control circuit 41
Controls the operation of each drive mechanism based on the operation of each switch and lever of the operation panel 42. It should be noted that description of controls other than rotation of the top plate 1 along the rolling direction d1 is omitted here. The rotation instruction switch 43 is for instructing left rotation or right rotation of the top 1 along the rolling direction d1. The message display section 44 allows the operator to specify the operation contents and the grip switches 39a and 39a.
It informs the state of b. The top plate rotation mode selection switch 45 is for switching the control circuit 41 to the top plate rotation mode for rotating the top plate. The rotation range selection switch 46 is for selecting the infinite rotation mode, the ± 20 degree rotation mode, and the ± 2 degree rotation mode. The infinite rotation mode is a mode in which the rotation angle is not limited and continuous rotation in one direction is possible. ± 2
The 0 degree rotation mode is a mode in which the top 1 can be rotated within a range of ± 20 degrees from the reference position. The ± 2 degree rotation mode is a mode in which the top plate 1 can be rotated within a range of ± 2 degrees from the reference position.

Next, the procedure for fixing the patient to the top plate 1 will be described. To fix the patient to the tabletop 1, attach each Velcro tape in the following order. (1) The velcro tape 32b of the subject fixing band 27a is attached to the velcro tape 30 of the top plate 1. (2) The velcro tape 32a and the velcro tape 32a 'are attached so that the top plate circling band 32 circulates around the top plate 1. (3) The subject fixing bands 27b and 27c are attached to the top plate 1 in the same manner as (1) and (2). At this time, the distance between the subject fixing bands 27a, 27b, and 27c is appropriately adjusted according to the size of the patient. (4) Place the patient on the tabletop 1. (5) Magic tape 33a and magic tape 33a '
Paste. As a result, the loop of the band formed by the top plate orbiting band 32, the patient orbiting band 33, and the patient orbiting band 33 'orbits and fixes the patient. (6) Replace the velcro tape 34b with the velcro tape 33b '
Paste in. (7) Replace the velcro tape 34a 'with the velcro tape 34a
Paste in. As a result, the ring of the band formed by the top plate orbiting band 32, the top plate subject orbiting band 34, the top plate subject orbiting band 34 ′, and the band 36 orbits the top 1 and the patient as a unit and fixes them. (8) While pulling the band 36 to the back surface side of the top plate 1, attach the magic tape 36a to the magic tapes 32c and 36b. This will increase patient tightness. (9) The patient is fixed with the subject fixing bands 27b and 27c in the same manner as (4) to (8).

The patient can be fixed to the top plate 1 by attaching the subject fixing band 27 in the procedure (1) to (9). This subject fixing band 27
According to the above, the following effects can be obtained.

Since it is not necessary to provide metal fittings or holes for attaching the subject fixing band 27 to the top plate 1, images of these metal fittings and holes are not reflected in the X-ray image, and a good X-ray image can be obtained. By attaching the magic tape 33a and the magic tape 33a ', the band wraps around the surface of the patient and fixes the patient. Therefore, the patient is less likely to shift in the lateral direction of the tabletop. By attaching the velcro tape 34a and the velcro tape 34a ', the band integrally circulates along the top plate 1 and the surface of the patient, so that the patient is less likely to shift in the vertical direction of the top plate. Since the band portion that orbits the top plate 1, the band portion that orbits the patient, and the band part that orbits the top plate and the patient integrally are provided, the patient can be firmly fixed to the flat top plate 1. Since the width of the magic tape 30 along the longitudinal direction of the top plate 1 is wider than the width of the subject fixing band 27 along the longitudinal direction of the top plate 1, the attachment position of the subject fixing band 27 is set to a patient's size. It can be adjusted accordingly. Velcro 30
Since it is continuously provided between the position where the subject fixing band is attached from the most patient's head and the position where the subject fixing band is attached most from the patient's foot, the subject is fixed at any position between these positions. A band can be attached. Since the marks 31a, 31b, 31c indicating the positions to which the subject fixing bands 27a, 27b, 27c are attached when fixing a patient of a standard size are provided, alignment can be easily performed. Corresponding pairs of velcro tapes are color-coded so that they can be easily identified, so that it is possible to prevent a mistake in pasting and reduce the time required to fix the patient. It should be noted that although the corresponding pair of magic tapes can be identified by color-coding, a mark such as a number may be attached instead of color-coding. in this case,
The corresponding pair of Velcro tapes should have the same mark, and the non-corresponding Velcro tapes should have different marks.

Next, a procedure for rotating the top plate 1 along the rolling direction d1 will be described. To rotate the top plate 1, the operation is performed according to the following procedure. (A) Press the top plate rotation mode selection switch 45. When the top plate rotation mode selection switch 45 is pressed, the control circuit 41 is set to the ± 2 ° rotation mode as an initial setting. At this time, the control circuit 41 displays a message on the message display unit 44 to confirm whether or not the fixation of the patient (attachment of the subject fixing band) is completed. (B) When the operator has fixed the patient, yes
A switch (not shown) is pressed to signal control circuit 41 of the end of patient immobilization. (C) The rotation range selection switch 46 is pressed to select one of the infinite rotation mode, ± 20 degree rotation mode, and ± 2 degree rotation mode. At this time, if the rotation range selection switch 46 is not pressed, the default ± 2 degree rotation mode remains selected. (D) Have the patient grip the hand grip 29. The control circuit 41 detects the grip of the hand grip 29 based on the signals of the grip switches 39a and 39b. When the control circuit 41 detects that the handgrip 29 is gripped after the yes switch is pressed, the control circuit 41 enters the top plate rotatable state. Further, the control circuit 41 uses the hand grip 29.
When the hand grip is not gripped and when the connector 40 is not connected, the message display unit 44 displays that the hand grip is not gripped. When the top plate is not rotatable, the top plate 1 does not rotate even if the rotation instruction switch 43 is operated. (E) The rotation instruction switch 43 is operated to rotate the top plate 1 along the rolling direction d1. When the rotation instruction switch 43 is operated while the tabletop can be rotated, the control circuit 4
1 indicates the motor 2 based on the input to the rotation instruction switch 43.
Drive 0 to rotate top 1. At this time, the control circuit 4
1 is the selected infinite rotation mode, ± 20 degree rotation mode,
The top plate 1 is rotated within the rotatable range of the rotation mode of ± 2 degrees. When the top plate 1 is rotated, the infinite rotation mode, the ± 20 degree rotation mode, and the ± 2 degree rotation mode cannot be switched.

Infinite rotation mode, ± 20 degree rotation mode, ±
To switch the two-degree rotation mode, the rotation instruction switch 43 or a reference return switch (not shown) for returning the top plate 1 to the reference position is operated to return the top plate 1 to the reference position, and then the above (a) to (a) to It can be executed by operating the operation (e).

According to such an embodiment, the following effects can be obtained. Since the subject mounting surface of the top plate 1 is flat, the X-axis can be set along the left-right direction of the patient (short side direction of the top plate).
When an image is captured by irradiating a ray, a good X-ray image can be obtained without the top plate image overlapping the portion of the X-ray image showing the patient. Also,
At the same time, the operator can easily see the patient. Top plate 1
Since the subject mounting surface is flat and the thickness is substantially uniform over the entire surface, the top plate 1 shown in the X-ray image is formed.
The shadow of is almost uniform. Therefore, even when the image of the tabletop overlaps the position of the patient in the X-ray image, the X-ray image is relatively easy to see. Since the top plate 1 has a cantilever structure in which it is supported by the top plate supporting portion 2 on only one side, the doctor goes in and out on the side opposite to the boarding / alighting side of the top plate 1 (between the mechanism for driving the C arm 7 and the top plate 1). Easy to do. Since the rotatable range selection switch 46 can switch the rotatable range of the tabletop 1, there is little risk that the patient will be rotated more than necessary due to an operation error. Rolling direction d
When the rotation angle of the top plate 1 along 1 is not the reference position, the infinite rotation mode, the ± 20 degree rotation mode, and the ± 2 degree rotation mode cannot be switched. Less likely to rotate the patient more than necessary. Since the enema 22 is provided on the back surface of the top plate 1,
When the top plate 1 is tilted down for diagnosis, the enema 22 is unlikely to be contaminated by the contrast agent leaked from the patient. Therefore, the enema device 22 can be easily cleaned, and the enema device 22 can be prevented from malfunctioning. Further, by disposing the enema device 22 on the back surface of the top plate, the length in the longitudinal direction near the top plate can be shortened, so that the load on the top plate support portion 2 can be reduced. Reducing the length in the longitudinal direction near the top plate is particularly useful when the top plate is cantilevered. Further, by disposing the enema device 22 on the back surface of the top plate 1, the position of the patient can be lowered when the top plate 1 is tilted, so that the patient can easily get in and out of the standing position.

[0030]

As described above in detail, according to the present invention, good X-ray images can be safely captured from various directions.

[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 configuration diagram showing an internal configuration of a top plate supporting portion 2 of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.

4 (a) and (b) are multipurpose X to which the present invention is applied.
It is the side view and front view which show the enema 22 of a line diagnostic device.

5 (a) and 5 (b) are views explaining fixation of a patient to the top plate 1. FIG.

FIG. 6 is a top plate 1 of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.
It is a figure which shows the back surface of.

FIG. 7 is a diagram showing a configuration of a subject fixing band 27 of a multipurpose X-ray diagnostic apparatus to which the present invention has been applied.

FIG. 8 is a diagram showing a configuration of a hand grip 29 of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.

FIG. 9 is a block diagram showing a control unit of a multipurpose X-ray diagnostic apparatus to which the present invention is applied.

[Explanation of Codes] 1 ... Top plate 3 ... X-ray generator 6 ... I. I. Holder 6a ... I. I. Drive mechanism in holder 5 ... X-ray image capturing unit 7 ... C arm 8 ... C arm holder 27 ... Subject fixing band 29 ... Hand grip

Claims (10)

[Claims] 1. A table on which a subject is placed, the table having a substantially flat subject mounting surface, rotation instruction means for instructing rotation of the table, and based on an output of the rotation instruction means. A top plate rotating means for rotating the top plate, an X-ray tube for irradiating the subject with X-rays, and an X-ray image capturing unit for capturing an X-ray image transmitted through the subject. An X-ray diagnostic apparatus characterized in that 2. A top plate on which a subject is placed, a top plate supporting means for cantilever supporting the top plate, a rotation instructing means for instructing rotation of the top plate, and an output based on the output of the rotation instructing means. ,
A top rotating means for rotating the top, an X-ray tube for irradiating the subject with X-rays, and an X transmitted through the subject.
An X-ray diagnostic apparatus comprising: an X-ray image capturing unit that captures a X-ray image. 3. The injection device for injecting a contrast agent into the subject, comprising an enema device provided on the back surface of the subject mounting surface of the top plate. The X-ray diagnostic apparatus according to claim 1. 4. A top plate on which a subject is placed, a rotation instruction means for instructing rotation of the top plate, a rotation range selection means for selecting a rotatable range of the top plate, and an output of the rotation instruction means. Then, the top rotating means for rotating the top within the rotation range selected by the rotation range selecting means, the X-ray tube for irradiating X-rays toward the subject, and the subject An X-ray diagnostic apparatus comprising: an X-ray image capturing unit that captures an X-ray image. 5. The X-ray diagnostic apparatus according to claim 4, wherein the rotation range selection means is capable of switching the rotation range only when the top plate is at a predetermined reference position. 6. A gripping part attached to the top plate and gripped by a subject, and gripping detecting means for detecting that the gripping part is gripped, wherein the top plate rotating means outputs the gripping detecting means. The X-ray diagnostic apparatus according to any one of claims 1 to 5, wherein the top plate is rotated based on the above. 7. A fixing band for an X-ray diagnostic apparatus for fixing a subject to a top plate when irradiating the subject with X-rays to capture an X-ray image, the top plate circling around the top plate. A band part, an object orbiting band part fixed to the top plate orbiting part for orbiting the subject, and a top plate orbiting band part for orbiting the subject and the top plate integrally. A fixed band for an X-ray diagnostic apparatus, which is characterized in that 8. A fixed band for an X-ray diagnostic apparatus for fixing an object to a top plate when irradiating the object with X-rays and capturing an X-ray image, and a plurality of pairs of attachable / detachable pairs. A fixing band for an X-ray diagnostic apparatus, comprising: a member, wherein the attaching / detaching members have different color arrangements, and corresponding pairs of attaching / detaching members have the same color arrangement. 9. A fixing band for an X-ray diagnostic apparatus for fixing an object to a top plate when irradiating the object with X-rays and capturing an X-ray image, and a plurality of pairs of attachable and detachable pairs. A fixing band for an X-ray diagnostic apparatus, comprising a member, wherein the attaching / detaching members have marks of different shapes, and corresponding pairs of attaching / detaching members have marks of the same shape. 10. The fixing band for an X-ray diagnostic apparatus according to claim 9, wherein the attaching / detaching member is a magic tape.