JPH04227236A - X-ray photographing device and bed device used therefor - Google Patents

Abstract

PURPOSE:To enable the divided photographing and the bundle photographing for an inspected body, obviating the need of a wide space and complicate device by constituting a bed device from the first X-ray image detecting means, second X-ray image detecting means, and an inspected body placing means for installing the first and second X-ray image detecting regions. CONSTITUTION:In the whole body scan image mode, a scan image is displayed on a monitor 78c by operating an X-ray tube device 74 and a scan system 78, shifting one or both of an intermediate shifting device 66 and a ceiling plate device 68 to a C arm device 70 side, in order to obtain the scan image of the whole lower body or the whole body of an inspected body. Accordingly, an operator can observe the scan image of the whole lower body or the whole body. In the bundle photographing mode, the intermediate shifting device 66 and the ceiling plate device 68 in the initial state are shifting-driven to the bundle photographing system 80 side. Then, an X-ray film photographing for the whole lower body is carried out by operating the X-ray tube device 84 and a long film changer 86 of the bundle photographing system 80.

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to an X-ray imaging device.
Specifically, the present invention relates to an X-ray imaging apparatus equipped with a bed apparatus suitable for photographing circulatory organs such as lower limb blood vessels using various imaging methods, and a bed apparatus used in the apparatus.

0002

2. Description of the Related Art An example of a conventional circulatory organ X-ray imaging apparatus will be explained with reference to FIG. That is, this cardiovascular X-ray imaging apparatus includes an imaging system 10 that obtains an X-ray film image as a photographed image using a film changer 10A, and an image intensifier (hereinafter referred to as "I.I.") 20A. The system is comprised of a fluoroscopic system 20 that obtains fluoroscopic images to determine the imaging position using a fluoroscopic system 20 and displays them on a monitor 20B, and a cartel bed 30 having a horizontally movable top plate device 30A. In addition to these elements, this circulatory system X-ray imaging apparatus includes various electrical appliances such as a high voltage generator and a control device (not shown). Further, a contrast medium injector (not shown) is arranged near the catheter bed 30.

Next, an example of photographing blood vessels in the lower limbs of a subject using this circulatory system X-ray imaging apparatus will be described with reference to FIG. That is, while horizontally moving the top plate device 2 on which the subject 200 is placed, the X-ray tube device 20C of the fluoroscopy system 20
X-rays for fluoroscopy are emitted from the As a result, a fluoroscopic image of the subject 200 is displayed on the monitor 20B of the fluoroscopic system 20. Therefore, an operator (not shown) inserts a catheter (not shown) into the blood vessel of the subject 200 while observing a fluoroscopic image, thereby allowing the tip of the catheter to reach the subject 200.
You can know the position within 0. Therefore, the operator can observe the fluoroscopic image and reach the tip of the catheter at a predetermined position within the subject. Next, by further horizontally moving the top plate device 30A, the part of the subject 200 where the tip of the catheter is located is moved to the position of the film changer 10A of the imaging system 10. A contrast agent is then released using a contrast agent injector and through the catheter at the site of the subject 200 where the tip of the catheter is located. At almost the same time, X-rays for imaging are emitted from the X-ray tube device 10B of the imaging system 10, and an X-ray photographed image is captured on the X-ray film in the film changer 10A.

[0004] The above is an explanation of the normal imaging method for a part of the lower limb, but in addition to this normal imaging method, a divided imaging method for a part of the lower limb is also used. In this divided photography method, it is required to move the top plate device 30A step by step at a relatively fast speed. In the example shown, the number of steps is
There are five. That is, while the subject 200 is sequentially moved to positions P1, P2, P3, P4, and P5 by horizontal movement of the top plate device 30A, X-rays for imaging are sequentially irradiated from the X-ray tube device 10B of the imaging system 10. , film changer 10
An X-ray image is captured for each different X-ray film changed in A. Therefore, a plurality of X-ray images (X-ray film images) are obtained for different parts of the lower limb. This is nothing but dividing and photographing the entire region of the lower limb.

[0005] In addition to the above-mentioned normal imaging method or divided imaging method for a portion of the lower limb, an imaging method is also adopted in which the entire region of the lower limb is photographed at one time. This imaging method uses a long X-ray film.

FIG. 10 is a configuration diagram showing an example of an X-ray photographing apparatus that photographs the entire region of the lower limb using a long X-ray film. As shown in FIG. 10, a horizontally movable top plate device 40A is arranged on a catheter bed 40 having a rectangular parallelepiped shape. The subject 200 is placed on this top plate device 40A. Further, inside the catheter bed 40, a long X-ray film 40B having a size that covers the entire lower limb area of the subject 200 is housed. Furthermore, an X-ray tube device 50 is attached to the ceiling.

[0007] In the X-ray imaging apparatus configured as described above,
Photographing of the entire region of the lower limbs is performed as follows. That is, the X-ray irradiation area and the long X-ray film 40B
Match the placement position of This is catheter bed 4
0 and the X-ray tube device 50. And long X-ray film 40
so that the lower limb region of the subject 200 is located directly above B.
Move the top plate device 40A. Then, by irradiating X-rays from the X-ray tube device 50,
A radiographic image (X-ray film image) is obtained.

[0008]

However, the above-mentioned conventional X-ray imaging apparatus has the following problems. That is, in order to perform segmented imaging of partial regions as shown in FIG. 9, or simultaneous imaging of the entire region using a long film as shown in FIG. 10, it was necessary to use specialized catheter beds for each. . Therefore, in order to realize an apparatus that can arbitrarily perform divided imaging and long film imaging, it was necessary to install two catheter beds. Therefore, there is a problem in that a large space is required to install two catheter beds, and the device becomes complicated.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an X-ray imaging device that can image a subject in sections or all at once without requiring a large space or complicating the device. be.

0010

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the objects, the present invention takes the following measures. That is, the X-ray diagnostic apparatus according to the invention of claim 1 includes a first X-ray image detection means having a first X-ray image detection area, and a first X-ray image detection means arranged in parallel with the first X-ray image detection means. between a second X-ray image detection means having a second X-ray image detection area, and the first X-ray image detection area and the second X-ray image detection area. and a bed device having a subject mounting means for moving the subject. Further, the bed device used in the X-ray diagnostic apparatus according to the invention of claim 2 includes a base body installed on the floor, a frame body fixed to the top of the base body, and a bed device arranged on the top of the frame body. an intermediate movable body that is horizontally movable on the frame; and a subject that is placed above the intermediate movable body and that is horizontally movable on the intermediate movable body. It consists of a mounting body.

[0011]

[Function] According to the X-ray imaging apparatus of the invention according to claim 1, the first X-ray image detection means is capable of performing divided imaging, and the second X-ray image detection means is capable of performing one-shot imaging. If it is possible to take an X-ray image, the couch device will move the subject between the first X-ray image detection area and the second X-ray image detection area.
Therefore, the subject can be imaged in sections or all at once without requiring a large space or complicating the apparatus.

[0012] Furthermore, according to the bed device used in the X-ray imaging apparatus, which is the invention according to claim 2, the bed device has the following features:
If it is arranged between a first X-ray image detection means that can take images in parts and a second X-ray image detection means that can take images all at once, the bed device can detect the subject in the first X-ray image detection means. The first X-ray image detection area can be moved between the first X-ray image detection area and the second X-ray image detection area. Therefore, the subject can be imaged in sections or all at once without requiring a large space or complicating the apparatus.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. This embodiment discloses a lower limb X-ray imaging device. As shown in FIGS. 1 and 2, the lower limb X-ray imaging apparatus of this embodiment includes a cartel bed 60, which is the most distinctive feature of this embodiment, and a C-arm device 70 for obtaining normal X-ray film images and fluoroscopic images. and a batch imaging system 80 for obtaining long X-ray film images. In addition to these elements, this lower limb X-ray imaging apparatus includes various electrical appliances such as a high voltage generator and a control device (not shown). The cartel bed 60 is installed on the floor 202. The C-arm device 70 is installed on one side (left side in the drawing) of the top plate device of the cartel bed 60 in the horizontal movement direction. Also,
The batch shooting system 80 includes a floor 202 and a ceiling 2 on the other side (right side in the drawing) of the top plate device of the cartel bed 60 in the horizontal movement direction.
It is installed on 04. Note that a contrast medium injector (not shown) is arranged near the catheter bed 60.

Here, regarding the cartel bed 60, FIGS.
This will be explained in detail with reference to FIG. That is, the base 62 is fixedly installed perpendicular to the floor 202. A frame 64 is fixed to the upper part of this base 62. This frame 64 includes a flat portion 64A and a flat portion 64A.
It consists of vertical walls 64B1 and 64B2 provided on both sides. Vertical walls 64B1 and 64B2 of the frame 64
are provided with rollers 64C1 and 64C2, respectively.

Further, an intermediate moving device 66 is disposed above the plane portion 64A of the frame 64. On both sides of this intermediate moving device 66, rollers 64C1 of the frame 64 are provided.
, 64C2 I-type rails 66A1, 66A
2 is provided. A rack gear 66B is provided at the bottom of the intermediate moving device 66. Further, a motor 66C is fixed to the plane portion 64A of the frame 64. A pinion gear 66D that meshes with the rack gear 66B is provided on the rotating shaft of the motor 66C. motor 66c
is driven and controlled by the controller 66E.

Further, a frame 68A of a top plate device 68 is arranged above the intermediate moving device 66. Below both sides of the frame 68A are roller support plates 68B1, 6.
8B2 is provided. This roller support plate 68B1
, 68B2 have I-type rails 66A1 and 66A2.
Rollers 68C1 and 68C2 guided by are provided. Therefore, I-type rails 66A1, 66A2
are the rollers 64C1 and 64C of the frame 64 on one side.
2, and the roller 68C1 of the top plate device 68 on the other side,
68C2 has been received. A rack gear 68D is provided at the bottom of the frame 68A. A motor 68E is fixed to the upper part of the intermediate moving device 66. A pinion gear 68F that meshes with a rack gear 68D is provided on the rotating shaft of the motor 68E. The motor 68E is driven and controlled by a controller (not shown). frame 6
A top plate 68G is arranged on 8A so as to be horizontally slidable. At both ends of the frame 68A, there is a top plate 68G.
Electromagnetic brake 68H1, 68H2 for fixing
is provided. This electromagnetic brake 68H1, 68H
2 Each consists of, for example, an electromagnet and an iron plate. The electromagnet is provided on the frame 68A side, and the iron plate is provided at a predetermined position on the top plate 68G corresponding to the electromagnet. Therefore, by exciting the electromagnets of the electromagnetic brakes 68H1 and 68H2, the iron plate of the top plate 68G can be attracted by electromagnetic force. Thereby, movement of the top plate 68G can be prevented.

Catheter bed 60 configured as described above
According to , the intermediate moving device 66 can be moved horizontally with respect to the frame 64. Further, the top plate device 68 can be moved horizontally with respect to the intermediate moving device 66. Moreover, the moving amount, moving speed, and stop position of the intermediate moving device 66 and the top plate device 68 can be arbitrarily set by the controller 66E for the motor 66c and the controller for the motor 68D. Further, the intermediate moving device 66 can be partially housed within the frame 64, and the top plate device 68 can be partially housed within the intermediate moving device 66. Further, the intermediate movement device 66 and the top plate device 68 of the catheter bed 60 have a normal movement mode for obtaining a fluoroscopic image and a normal X-ray film image, a stepping movement mode for segmented imaging using a normal X-ray film, and a whole body movement mode. The moving operation is performed according to either a whole body fluoroscopic image mode for obtaining a fluoroscopic image or a batch imaging mode for batch imaging using a long X-ray film. Furthermore, electromagnetic brake 68H
1 and 68H2 are not driven, the top plate 68G of the top plate device 68 can be manually pulled out from the frame 68A to a desired position and pushed back.

The C-arm device 70 includes an arm mechanism 72,
It consists of a wire tube device 74, a film changer 76 for single-shot photography or divided photography, and a fluoroscopic system 78 for fluoroscopy. An X-ray tube device 74, a film changer 76, and a fluoroscopy system 78 are attached to the arm mechanism 72. The arm mechanism 72 includes a rail mechanism 72A installed on the ceiling 204, a base 72B installed on the rail mechanism 72A, a column 72C attached to the base 72B, an arm base 72D attached to the column 72C, and an arm base 72A attached to the column 72C.
It consists of a C-arm 72E provided in 2D. base 72
B is movable on the rail mechanism 72A. Post 72C
is vertically extendable and rotatable. Arm base 72D is rotatable in the direction indicated by reference numeral 106. C-arm 72E is slidable in the direction indicated by reference numeral 108. X-ray tube device 74 is attached to one end of C-arm 72E. The film changer 76 and the fluoroscopy system 78 are connected to the C-arm 7 via a switching mechanism (not shown).
It is attached to the other end of 2E. The fluoroscopy system 78 includes an I. I
．． 78A, a TV camera 78B, an image processing device (not shown), and a TV monitor 78C. Also, by operating the switching mechanism, the X-ray entrance surface of the film changer 76 is made to face the X-ray exposure opening of the X-ray tube device 74;
I. I. It is possible to arbitrarily set the X-ray entrance surface of 78A to face the X-ray exposure opening of the X-ray tube device 74. The X-ray tube device 74 can emit X-rays for obtaining normal X-ray film images and X-rays for obtaining fluoroscopic images.

According to the C-arm device 70 having such a configuration, it is possible to obtain a normal X-ray film image and a fluoroscopic image of the same part of the subject without moving the subject. Furthermore, normal X-ray film images and fluoroscopic images of the same region of the subject can be obtained in multiple directions without moving the subject.

The batch imaging system 80 includes an X-ray tube support arm 82 installed on the ceiling 204, and an X-ray tube support arm 82 installed on the ceiling 204.
An X-ray tube device 8 supported by the
4, and a long film changer 86 installed on the floor 202 and containing long X-ray films.

Next, the operation of the lower limb X-ray imaging apparatus according to this embodiment will be explained. A feature of this device is the operation of the catheter bed 60. That is, as already mentioned, the intermediate moving device 66 and the top plate device 68 of the catheter bed 60
moves according to one of the normal movement mode, stepping movement mode, whole-body perspective image mode, and batch shooting mode. In this case, the subject 200 is placed on the top plate 68G of the catheter bed 60 in the initial state. Note that the initial state of the catheter bed 60 refers to a state in which the intermediate moving device 66 and the top plate device 68 are housed within the frame 64.

The normal movement mode operates as follows. That is, in order to approximately position the lower limb part of the subject 200 within the C-arm 72E of the C-arm device 70, one or both of the intermediate moving device 66 and the top plate device 68 are placed on the C-arm device 70 side, that is, on the left side in the drawing. Move in the direction. Then, by operating the X-ray tube device 74 and the fluoroscopic system 78, a fluoroscopic image is displayed on the monitor 78C. Therefore, the operator (doctor) can observe the fluoroscopic image. Then, the top plate device 68 is moved so that the region of the lower limb of the subject 200 to which the catheter tip should reach appears in the fluoroscopic image. This allows this operator (physician) to:
A fluoroscopic image showing the region of the lower limb of the subject 200 to which the tip of the catheter should reach can be observed. In this state, the catheter is inserted into the subject by passing it through the blood vessel, and the tip of the catheter is made to reach the site. Then, the catheter and contrast agent injector are used to release a contrast agent at the site. Next, by operating the switching mechanism, the X-ray entrance surface of the film changer 76 is made to face the X-ray exposure opening of the X-ray tube device 74. Then, by operating the X-ray tube device 74 and film changer 76, a normal X-ray film image, which is a single-shot photograph, is obtained. This situation is shown in Figure 4.
This can be easily understood by referring to FIG.

The stepping movement mode operates as follows. That is, while the above-mentioned normal movement mode takes a single shot, in the stepping movement mode, after releasing the contrast agent, one or both of the intermediate movement device 66 and the top plate device 68 are moved as shown in FIG. It moves horizontally intermittently at high speed. By operating the X-ray tube device 74 and film changer 76 at each stop position of this intermittent movement, divided imaging is realized by performing X-ray film imaging of different regions of the lower limb.

The whole body perspective image mode operates as follows. That is, when injecting a contrast medium or not injecting a contrast medium, the intermediate moving device 66 and the top plate device 6 are used to obtain a fluoroscopic image of the entire lower limb or whole body of the subject 200.
8 to the C-arm device 70 side, that is, to the left side in the drawing, while operating the X-ray tube device 74 and the fluoroscopy system 78 to monitor the fluoroscopic image 78C.
to be displayed. Therefore, the operator (physician) can observe a fluoroscopic image of the entire lower limb or the whole body. This image is
It can also be converted into a digital image and stored in a storage device.

The batch shooting mode operates as follows. In order to obtain an X-ray film image of the entire lower limb of the subject 200 when a contrast medium is injected or when no contrast medium is injected, the intermediate moving device 66 and the top plate in the initial state are used as shown in FIG. The device 68 is moved toward the batch imaging system 80, that is, toward the right side of the drawing. Then, the X-ray tube device 84 of the batch imaging system 80 and the long film changer 8
By operating 6, the entire lower limb is photographed with an X-ray film, thereby achieving simultaneous imaging of the entire lower limb area.

Note that FIG. 4 shows a case where the intermediate moving device 66 and the top plate device 68 are moved toward the C-arm device 70 side, that is, toward the left side of the drawing. The top plate 68g is in a pulled out state from the top plate device 68. In FIG. 5, the intermediate moving device 66 is moved toward the batch imaging system 80 side, that is, toward the right side of the drawing, and the top plate device 68 is moved toward the C-arm device 70.
In other words, the case is shown in which movement is performed toward the left side of the drawing. In this case as well, the top plate 68g is pulled out from the top plate device 68. FIG. 6 shows a case where the intermediate moving device 66 and the top plate device 68 are moved toward the batch photographing system 80 side, that is, toward the right side of the drawing. In this case as well, the top plate 68g is pulled out from the top plate device 68. Step shooting (divided shooting) is performed from the state shown in Fig. 5 to the state shown in Fig. 4.
This can be carried out when the state changes to the state shown in FIG. 4 or from the state shown in FIG. 4 to the state shown in FIG.

Next, referring to FIG. 7, a catheter bed 60' of a different type from that shown in FIG. 3 will be described. This catheter bed 60' includes a rack gear 68D and a motor 6 in FIG.
8E and pinion gear 68F are removed, and new electromagnetic brakes 68H1 and 68H2 are installed on the I-type rail 66A1.
, 66A2 and rollers 68C1, 6 of the top plate device 68
8C2.

According to the catheter bed 60' having such a configuration, the intermediate moving device 66 and the top plate device 68 are integrated by driving the electromagnetic brakes 68H1 and 68H2. Therefore, in each of the above-mentioned operation modes, the intermediate moving device 66 and the top plate device 68 can be horizontally moved as one. When the electromagnetic brakes 68H1 and 68H2 are not driven, the top plate device 68 can be manually pulled out from the intermediate moving device 66 and pushed back. In clinical practice, there is little need to move the top plate device 68 electrically. Therefore, this example achieves cost reduction while satisfying clinical requirements.

Next, the configuration of another embodiment of the X-ray imaging apparatus according to the present invention will be described with reference to FIG. This example has a configuration in which an imaging device 90 and a fluoroscopic device 100 are separately provided in place of the C-arm device 70 shown in FIGS. 1 and 2. The fluoroscopy device 100 and the imaging device 90 are connected to the catheter bed 6.
The top plate devices 68 of No. 0 are arranged in parallel along the horizontal movement direction. The fluoroscopy device 100 is placed close to the catheter bed 60, and the imaging device 90 is placed away from the catheter bed 60. The photographing device 90 includes an X-ray tube support device 92 attached to the ceiling 202, an X-ray tube device 94, and a film changer 96 arranged on the floor 202, which accommodates ordinary X-ray film. The fluoroscopy device 100 includes an X-ray tube device 104 placed on the floor 202 and an I.D. tube device 104 installed on the ceiling 202. I. Support device 104, I.
I. I.A. attached to support device 104. I. 106, I
．． I. It consists of a TV camera 108 attached to the TV camera 106, and a monitor 110 that displays a perspective image from the TV camera 108. Even with the X-ray imaging apparatus having such a configuration, the same operation as the apparatus shown in FIGS. 1 and 2 can be obtained, except that the fluoroscopic position and the imaging position are different. The present invention is not limited to the above embodiments, but can be implemented with various modifications without departing from the gist of the present invention.

[0030]

Effect of the invention As described above, X according to the invention of claim 1
The radiation diagnostic apparatus includes a first X-ray image detection area having a first X-ray image detection area.
a second X-ray image detection means arranged in parallel with the first X-ray image detection means and having a second X-ray image detection area; a bed device having a subject mounting means for moving the subject between the first X-ray image detection area and the second X-ray image detection area;

0031
] Therefore, if the first X-ray image detection means is capable of taking images in sections, and the second X-ray image detection means is capable of taking images all at once, then the bed The apparatus allows the subject to be moved between the first X-ray image detection area and the second X-ray image detection area. The specimen can be photographed in sections or all at once. In addition, X according to the invention of claim 2
A bed device used in a radiographic diagnostic device includes a base body installed on the floor, a frame body fixed to the top of the base body, and a bed device placed on the top of the frame body. an intermediate moving body that is horizontally movable above the intermediate moving body; a subject mounting body that is disposed above the intermediate moving body and that is horizontally movable above the intermediate moving body;

[0032] Therefore, the bed device is arranged between the first X-ray image detection means that can take images in sections and the second X-ray image detection means that can take images all at once. Then, the subject is placed in the first position by the bed device.
can be moved between the X-ray image detection area and the second X-ray image detection area, and therefore does not require a large space, and
It is also possible to image the subject in sections without complicating the equipment.
It will also be possible to take pictures all at once.

Therefore, according to the present invention, there is provided an X-ray imaging apparatus and an X-ray imaging apparatus that can image a subject in sections or all at once without requiring a large space or complicating the apparatus, and an X-ray imaging apparatus that can be used in the apparatus. A bed device can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of an embodiment of an X-ray imaging device and a bed device used in the device according to the present invention.

FIG. 2 is a front view of the device shown in FIG. 1.

FIG. 3 is a cross-sectional view of an example of a catheter bed in the apparatus shown in FIG. 1.

FIG. 4 is a diagram showing the operation of the apparatus shown in FIG. 1, and showing the situation of single-shot photography.

FIG. 5 is a diagram showing the operation of the apparatus shown in FIG. 1, and shows a situation in which the intermediate moving device and the top plate device are located in the frame of the bed device.

FIG. 6 is a diagram showing the operation of the apparatus shown in FIG. 1, and showing a situation of batch shooting.

FIG. 7 is a sectional view of another example of the catheter bed in the apparatus shown in FIG. 1.

FIG. 8 is a perspective view showing the configuration of another embodiment of the X-ray imaging apparatus according to the present invention.

FIG. 9 is a configuration diagram showing an example of a conventional X-ray imaging apparatus for performing segmented imaging of the lower limbs.

FIG. 10 is a configuration diagram showing an example of a conventional X-ray imaging apparatus for collectively imaging the entire region of the lower limbs.

[Explanation of symbols]

60... Cartel bed, 62... Base, 64... Frame,
66...Intermediate moving device, 66A1, 66A2...I-type rail, 66B...Rack gear, 66C...Motor, 66D...
Pinion gear, 66E...Controller, 68...Top plate device, 70...C-arm device, 72...Arm mechanism, 74...X-ray tube device, 76...Film changer for single-shot photography or divided photography, 78...fluoroscopy system , 80...Batch shooting system, 8
2...X-ray tube support arm, 84...X-ray tube device, 86...long film changer.

Claims (2)

[Claims] 1. A first X-ray image detecting means having a first X-ray image detecting area, and a second X-ray image detecting means arranged in parallel with the first X-ray image detecting means. a second X-ray image detection means having an X-ray image detection area; and a subject mount for moving the subject between the first X-ray image detection area and the second X-ray image detection area. An X-ray imaging device comprising: a bed device having a placement means; [Claim 2] A base body installed on the floor;
A frame body fixed to the upper part of the base body, an intermediate moving body arranged above the frame body and capable of moving horizontally on the frame body, and an intermediate moving body disposed above the intermediate moving body. A bed device for use in an X-ray imaging apparatus, comprising: a subject support that is horizontally movable on the intermediate moving body;