JPH08275939A - Radiography device - Google Patents

Abstract

PURPOSE: To make a radiography device suitable when it is used to perform radiography while a doctor is giving a treatment, and position a patient in an easily workable height according to the content of the treatment. CONSTITUTION: A radiography device is composed of a table 12 of a bed 10 on which a subject is placed, a table support device 60 having a function of inclining the table and of vertically moving the table by a shaft in the direction perpendicular to the lengthwise direction of the bed, an X-ray irradiating device 250 positioned at a distance from a table upper surface above the subject side of the bed and an X-ray detecting device 160 positioned under the table, and the support device 60 is provided with a horizontal support body to support the bed from a side part of the bed and a vertical support mechanism to vertically move the horizontal support body. The vertical support mechanism is arranged on one side of the bed so as to be deviated in the direction of an end part close to the center in the lengthwise direction of the bed. Therefore, a space in which the other treatment devices are arranged can be secured without hindering a movement and treatment work of a doctor around the bed of the upper half of the body of a person to be treated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray imaging apparatus,
In particular, the present invention relates to an X-ray imaging apparatus that does not hinder the movement and treatment of a doctor around a bed.

[0002]

2. Description of the Related Art A conventional X-ray imaging apparatus has been used for imaging for the purpose of early detection of illness. With the advancement of medical science, there is an increasing demand for not only diagnosis but also imaging during treatment, and it has become necessary to respond to this.

[0003]

Conventionally, there has been known no apparatus capable of efficiently performing treatment and radiography at the same time in response to the demand for performing X-ray photography during treatment.

An object of the present invention is to provide an X-ray imaging apparatus suitable for a doctor to perform X-ray imaging while performing treatment.

Another object of the present invention is to provide an X-ray imaging apparatus capable of positioning a patient at a height where it is easy to work according to the content of treatment.

[0006]

In the X-ray imaging apparatus which is one of the present invention, a table supporting device for rotatably or vertically moving a table of a bed on which a subject is placed is a lateral support and the lateral support. There is a vertical support mechanism for moving the support up and down, and the vertical support mechanism is arranged on one side of the bed and offset from the longitudinal center of the bed toward the end. This can prevent the bed support device from interfering with the treatment.

In an X-ray imaging apparatus which is another aspect of the present invention, the bed height is at least 850 mm and at most 870.
Movable within the range of mm or more. This makes it possible to maintain the optimum position according to the work.

In the X-ray imaging apparatus which is another aspect of the present invention, the height moving speed of the bed is variable, and when the bed table is tilted, a relatively high speed is selected and the table rises.

[0009]

In the present invention, since the vertical support mechanism is arranged on one side of the bed and offset from the longitudinal center of the bed toward the end, for example, in the leg direction, the movement and treatment of the doctor around the bed of the upper body. It does not interfere with the operation of the medical treatment and can secure a space for other treatment equipment.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an X-ray imaging apparatus having a bidirectional fluoroscopic imaging function which is an embodiment of the present invention. 2 is bed 10.
FIG. The table 12 of the bed 10 on which the subject is placed has a top plate 14, and the top plate 14 is made of a material that transmits X-rays. An X-ray irradiation device 250 suspended from the ceiling 6 is arranged at a predetermined distance from the top plate 14. On the other hand, below the table 12, X-ray detection means 160 for detecting X-rays passing through the subject is provided.
Take a line image. An image showing the X-ray transmission state is created by the detection means 160 and displayed on the monitor device 400. The height and rotation angle of the table 10, that is, the tilt angle is controlled to maintain the position and direction of the subject in a desired state, the position control of the X-ray irradiator 250 is performed, and the operation for imaging is performed by a proximity console. Performed by 500.

In this embodiment, a bed 1 on which a subject is placed
0 is supported by the support mechanism 60 on the floor 2 of the examination room and the wall 4 of the examination room.
And 5 are fixed in a parallel arrangement. Further, the X-ray irradiation device 250 is held on the ceiling 6 via rails 260, 262 for movement and a support carriage 252. Monitor device 4
00 and the proximity console 500 are equipped with rails 450 and 452 provided on the ceiling 6 of the examination room and arms 462 and 562, respectively.
And held via a commonly used support carriage 552. With such a configuration and arrangement, the X-ray irradiation device 250, the monitor device 400, and the proximity console 500 can be arranged away from the periphery of the bed 10. Therefore, when an X-ray is taken while treating the subject, the bed 10
Since the surroundings of the patient are open, there is less obstruction for medical treatment by the doctor, it is easy to act, and it is easy to approach the subject. In addition, it is possible to achieve the purpose and effect that it is easy to secure a space for placing other treatment equipment. Furthermore, the support mechanism 60
Is located on the wall side of the bed, so it is possible to effectively secure a space for treatment by a doctor. Further, since the height of the support mechanism 60 is set lower than that of the top plate 14 of the bed 10 being treated, it does not interfere with the treatment of the doctor.

The head side 20 of the table 12 of the bed 10 is open, while the foot side 22 of the table 12 is provided with a footrest 26. Table 12 in this bed 10
The footrest 26 comes close to the floor 2 in a state where it is turned upright, and the subject puts his / her foot on the floor, and the table 12
The subject is placed in a desired position and direction by standing upright on the top plate 14 and then lying down the table. Rails 27 and 28 are attached to both side surfaces of the bed 12, and accessories such as a grip 30, a shoulder rest 34, and a compression cylinder 36 are attached to the rails 27 and 28 as needed.
These can be moved along the rails 27 and 28 to positions suitable for the subject. Since the rails 27 and 28 are fixed not to the upper surfaces of both sides of the table 12 but to the side surfaces by utilizing the thickness of the table 12, it is not necessary to provide a rail width space on both sides of the table 12 and the bed width can be narrowed. The purpose of being able to do, and work such as medical treatment inspection of doctor is easy
effective. Further, since the rail having the groove is moved from the upper surface of the table to the side surface, there is an object and an effect to make it extremely easy to wipe off stains such as value, blood and other chemicals on the upper surface of the table. The support mechanism 60 is provided so as to be offset from the longitudinal center 38 of the table 12 toward the end, and is intended to eliminate as much as possible the obstacles in the arrangement of instruments necessary for the doctor's action and treatment around the bed 10. effective. In this embodiment, the bed 12 is offset to the foot side 22 rather than the head side 20. The treatment of the subject is more likely to be from the upper half of the body to the head, and in this embodiment, the center 3 of the bed 12
8 has the purpose and effect of opening the head side. Further, each corner of the cover of the support mechanism 60, that is, the case 90 is rounded, and the opposite side of the bed is curved so that the thickness of both sides 92 of the case 90 relative to the distance from the end of the table of the central portion 91, that is, the thickness. Is reduced. This avoids treatment and other obstacles as much as possible, and also prevents doctors and nurses from being injured by collision.

FIG. 3 is an embodiment showing a control mechanism for the vertical and rotational or tilting of the table 12. Inspection room floor 2
The floor pedestal 62 is fixed to the base with four anchor bolts. The hydraulic cylinder 80 is fixed to this floor base 62, and the table 1
The lateral support 68 that supports 2 is moved up and down. This lateral support 68
Is fixed to the upper end of a lifting cylinder 80 by a lifting frame 64 and a lateral support fixing device 66. Further, the encoder 45 that detects the absolute height of the vertical movement detects the height of the top plate 14 of the table 12 from the movement of the belt fixed to the vertical movement frame 64. Further, a descending overrun switch 84 for detecting a descending overrun and an ascending overrun switch 86 for detecting an ascending overrun are provided so that the ascending and descending does not exceed the safe range. The whole of these devices acts as a bed support mechanism and is covered by a case 90.

The hydraulic cylinder 80 is of the three-stage telescopic type, and its driving hydraulic pressure is made by the hydraulic unit 72 of the control box 70 and is sent to a computer-controlled valve unit 76 through a pipe 74.
6 through a pipe 78, a check valve 79, and a hydraulic cylinder 80. Since a hydraulic cylinder is used, the entire bed support mechanism is small, and the purpose and effect of making the area around the bed more open. In addition, the combination of the hydraulic cylinder 80 and the elevating / lowering frame 64 can narrow the width of the table support mechanism and the case 90 that wraps them, and even if it is located on the side of the table, it does not hinder the medical treatment of the doctor. It has an effect. The check valve 79 has a function of closing the valve so as to prevent the hydraulic pressure in the cylinder 80 from decreasing when the hydraulic pressure in the pipe 78 drops due to some abnormality, and disconnects the communication between the pipe 78 and the cylinder 80. This has the purpose and effect of preventing the table from being lowered due to the above abnormality and maintaining safety. In addition, even if there is a mistake in the operation of raising or lowering the table, the overrun switches 84, 86 can be used to move the table beyond the safe movement range.
And the computer automatically controls the valve unit 76 with these outputs to stop the ascending or descending movement, so that it is possible to maintain safety.

The rotation or inclination of the bed is controlled by the raising / lowering hydraulic motor 104. A predetermined hydraulic pressure is sent from the hydraulic unit 72 to the tilting hydraulic motor 104 via the pipe 74, the valve unit 76, and the pipe 102. The motor 104 is structured to rotate when hydraulic pressure is sent. This rotation is the worm gear irregular machine 106.
The angle with respect to the lateral support 68 is changed, and the table 12 rotates with respect to the lateral support 68. This rotation direction is performed by switching the valve of the valve unit 76. The rotation angle is detected by the tilting encoder 108, and the rotation overrun is detected by the tilting overrun switch 110. Since the tilt of the table is controlled by the hydraulic motor 104, there is an effect that the entire apparatus can be downsized. The motor 104 includes a speed reducer 106,
Since this irregular machine 106 has a self-locking function, when the hydraulic pressure in the pipe 102 becomes abnormal for some reason, the rotation of the motor 104 is locked by the speed reducer 106 and the tilt of the table is maintained so as not to change. It This has the effect of maintaining safety.

FIG. 4 is an explanatory view of the bed grip 30. The grips 30 are detachably attached to the rails 27 and 28 on both sides of the table by fixing devices 32, respectively. The grip 30 has a grip foot 31, and the grip foot 31 sandwiches the fixing device 32 and is rotatably attached to a side portion of the fixing device 32. When the doctor rotates the grips 30 on both sides onto the upper surface of the table 12, the surface of the grip foot 31 on the table side becomes the rail 2.
It is fixed by hitting the surface of 7, 28. On the other hand, when the grip 30 is an obstacle such as when the subject is transferred from the stretcher to the top plate, the grip 30 is tilted downward by opening the grip to rotate the connection between the grip foot 31 and the fixing device 32. In addition, the grip is placed under the table in such a manner that the grip is located inside the rail surface, which is the side surface of the table, because the grip is designed to hit the top plate surface of the bottom rail of the bottom side. Therefore, there is an effect that it does not get in the way. Further, the head side of the grip is obliquely connected to the lower side of the grip with an inclination of, for example, about 45 degrees. This oblique portion, which is sometimes lowered in the X-ray photography, is easily gripped, and it is possible to reduce the anxiety that the subject feels that the body may slip and fall. The side of the grip on the foot side may have a shape close to 90 degrees as in the past, instead of being inclined.

FIG. 5 and FIG. 6 show the control of the diaphragm mechanism 120 having the X-ray mask function. The table 12 of the bed 10 has a top plate 14 as an upper plate and a diaphragm mechanism 120 having a mask function below the top plate 14. As shown in FIG. 5, the table 12 is rotatable as indicated by an arrow, and the diaphragm mechanism 12
0 can move in the X and Y directions, and the imaging device 160 also moves in the X and Y directions.
It can be moved in the Y direction.

The diaphragm mechanism 120 includes upper and lower split masks 124 and 125 movably attached to the diaphragm mechanism frame 122, upper and lower split masks 126 and 127, and an upper and lower mask motor 130 and a wire rope 132 for moving the upper and lower split masks 124 and 125. , Further left and right split mask 12
6, the left and right mask motors 134 and the wire rope 136 for moving, the origin detection sensor 140 for detecting the origin of the upper and lower divided masks 125, the overrun sensor 142 for detecting the overrun, and the origin of the left and right divided masks 126. Origin detection sensor 144
And overrun sensor 146 to detect overrun
Consists of

The irradiation of X-rays is harmful to the human body, and the irradiation place should be limited to the necessary parts. Although the irradiation part is narrowed down by an X-ray irradiation device, it is desirable to take only the necessary part of the X-ray photograph. Therefore, the upper and lower mask motors 130 and the left and right mask motors 134 are controlled by operating the console 500 described later, and the upper, lower, left and right masks 124, 125, 1
Control the enclosing range at 26, 127 to the desired value and position. This has the purpose and effect of not only preventing X-ray scattering but also improving image quality. Further, in order to improve the control accuracy, the motors 130 and 134 are DC motors.
Here, the up-down direction indicates the X direction in FIG. 5, and the left-right direction indicates the Y direction.

FIG. 7 shows the image pickup mechanism 160 located under the bed 10. A rail 15 that holds the image pickup mechanism 160 on both inner sides of a support frame 150 provided at the bottom of the table 12 and that can move in the Y direction indicated by an arrow 152.
4 are provided. Only one side is shown in the figure. In this embodiment, the word rail is used in a very broad sense. For example, only a groove having a concave shape, which is not a convex structure, extends for a long time, and a thing which is guided and moved by the groove is also described as a rail including the groove extending for a long time. In the figure, the imaging mechanism 160 held by the rail 154 transmits the rotation of the motor 156 fixed to the support frame 150 and this motor 156,
A chain 158 that moves the imaging mechanism 160 along 4
The position is controlled by. The signal indicating the value of this position is detected and generated by the absolute value sensor 162. Further, in order to prevent the movement of the image pickup mechanism 160 in the Y direction from exceeding the safe range, it is detected that the predetermined range is exceeded.
The overrun detection switches 164 and 165 are provided on the video system moving frame 166.

An image receiving device 168 for converting X-rays into light having an intensity corresponding to the intensity of the image system moving frame 166 is attached via an attachment frame 170. The light generated by the image receiving device 168 is guided to the camera 174 via the optical path 172. The X-ray image detected by the camera 174 is displayed on the monitor 400, recorded by operation, and photographed. FIG. 8 is an enlarged view of the image receiving device 168. FIG.
The movement control of the imaging device 168 in the X direction indicated by the arrow 176 is performed by the motor 178 fixed to the moving frame 166 and the speed reducer 1.
80, a rack 184 fixed to the mounting frame 170, and a pinion 182 engaged with the rack 184 and rotated by the speed reducer 180. The entire moving frame 166 is the motor 1
56 and the chain 158 move in the X direction to move the frame 1.
The rotation of the motor 178 in 66 causes the pinion 182 and the rack 184 to move in the Y direction. The position in the Y direction is detected by an absolute value sensor 186 that receives the rotation of the pinion via the belt 188. Since the imaging device is moved by this mechanism, the moving device in the X direction and the Y direction can be made compact and thin, and restrictions on the height of the bed are reduced. Therefore, even if the table 12 is lowered downward as much as necessary, it does not hit the floor of the examination room. For this reason, the height of the patient on the table can be maintained at a height at which treatment can be easily performed when photographing is performed during treatment. Further, since these devices are located under the bed and do not protrude from the periphery of the table, a space for other treatment equipment can be secured and the movement of the doctor / nurse is not hindered.

FIG. 9 is a view showing a state in which a doctor is treating, or a state in which the head of the subject is lower than the foot in X-ray photography. When the table 12 is low, it becomes necessary for the doctor to bend the knee when performing a medical treatment, and the medical treatment cannot be performed sufficiently. If it is too high, the treatment cannot be performed smoothly.
Therefore, when treating, the top plate 1 which is the upper surface of the table 12
4 height L2 is 800mm or more, its height adjustment range L
1 is preferably about 400 mm. It is desirable that the height from the floor rises and falls within the range of 800 mm to 1200 mm. Table 1 when the top plate 14 is lowered
When the upper end of the second support mechanism 60 is located above the top plate 14, it interferes with the treatment. Therefore, the cylinder 80 in the support mechanism 60 is a three-stage cylinder, which keeps the height in a contracted state low. Further, since the height of the imaging device 160 is kept low, the table 12 can be lowered. The vertical movement speed of the table is not constant but variable. This is because it is possible to select whether to move slowly depending on the health condition of the subject or to move the table faster to end X-ray imaging earlier. It is also possible to determine a plurality of moving speeds in advance and make a selection by a doctor or an inspection technician, which reduces the burden on the doctor or the like and allows him to concentrate on treatment such as surgery.

The broken line shows the case where the table 12 is rotated in the direction in which the head is lowered. This operation is done remotely or at a proximity console. When this operation instruction is issued, the table and the support mechanism 60 are automatically raised to a predetermined height and the head side of the table is lowered. At this time, the ascending speed of the table is made faster than the tilting speed of the table. If the rising speed can be set to multiple speeds, the table automatically rises at a speed faster than the minimum rising speed. This is because the tilting operation is performed as quickly as possible. That is, when an X-ray image of the stomach state is taken, an operation of lowering the head may be performed, but the image taking time cannot be extended so much due to the state of the stomach of the volume. The purpose is to cope with such a situation.

The lower surface 13 on the head side of the table 12 has about 45
The reason why the table is cut is that it does not hit the floor even when the table is tilted as shown in the figure. Also, the head-side end lower surface 173 of the image pickup apparatus 160 is similarly cut in order to prevent it from hitting the floor surface. As can be seen in this figure, the support device 60 of the table 12 is provided on the foot side of the center of the table in the longitudinal direction. This is for the purpose of not hindering the behavior of the doctor regarding the treatment from the head to the abdomen, and for securing the installation place of the treatment device as much as possible.

FIG. 10 illustrates the insertion of a film called a cassette 190. This film is a film that is sensitive to X-rays, and can produce shades of black and white depending on the intensity of X-rays.
This film is put in a case and called a cassette.
The cassette 190 is inserted from the insertion port 192 under the top plate 14 of the table 12 and the diaphragm mechanism 120, and is inserted into the support frame 150 that constitutes the lower part of the table 12.
The table 12 is formed by providing a relatively hard top plate 14 and rails 27, 28 for attaching accessories on both sides. The inside of the table 12 is formed by the cassette 190 or the diaphragm mechanism 120. The image receiving device 168 of the image pickup device may be suspended. Although these devices are damaged when they collide with other devices, they are protected by the top plate 14 of the table 12 and the side portions of the table 12 to which the rails 27 and 28 are attached.

FIG. 11 is a view of using a film changer 198 which automatically replaces the film sensitive to X-rays and takes several X-ray images instead of the image pickup device 160. The imaging device 160 is operated by the proximity operation console 500.
Moves to the foot side of the table 12. This movement is performed by the movement motor 156 along the rail 154 of the support frame 150 below the table. Film changer 198
The moving vehicle is at the bottom, and the moving cars are inserted inside the rails 154 on both sides of the support frame 150, and continuous shooting is performed. Due to this structure, the film changer 198
There is an effect that insertion of can be performed easily and in a short time.

In FIG. 1, the X-ray irradiator 250 is movably suspended by X-direction rails 260 and 262 fixed to the ceiling 6 and Y-direction rails 264 and 266 held by the rails. The X-direction rails 260, 262 are fixed to the ceiling above the bed 10 in the X-direction, which is the longitudinal direction of the bed 10, and by moving along the X-direction rails 260, 262, the X-ray irradiator 250 of the bed 10 moves. It moves in the X direction which is the longitudinal direction. The Y-direction rails 264 and 266 movably supported by the rails are parallel to the direction Y of the short side of the bed 10. Therefore, the X-ray irradiation device 250 can be moved along the Y direction of the bed 10 by moving along the Y direction rails 264 and 266.

In this specification, the rail is used in a very broad sense, and it is not limited to a convex elongated rail, but also a concave elongated rail that is guided by the guide and extends to the concave elongated guide. Is expressed as a rail.

The moving mechanism in the X and Y directions is shown in FIGS.
3 shows. The X-direction motor 270 is fixed to the Y-direction rail 264, and the pinion 274 engaged with the racks 276 provided on the X-direction rails 260 and 262 is connected to the X-direction motor 270 via the harmonic speed reducer 272.
The rotational driving force of is transmitted. By controlling the rotation direction and speed of the X-direction motor 270, the Y-direction rail 264,
The moving direction and moving speed of 266 can be controlled. Guide rails 280 and 2 are provided on the X-direction rails 260 and 262, respectively.
82 is provided, and the guide wheels 286 provided on the Y-direction rails 264 and 266 move along the guide rails 280 and 282, whereby the Y-direction rails 264 and 266 are moved by the X-direction motor 270.
The guide wheel 286 of both rails 264, 266 is covered by the LM guide 284.

FIG. 13 is a diagram for explaining the movement of the box 290 with respect to the Y-direction rails 264 and 266. The rack 296 is provided on the Y-direction rail 264, and the box 29
The pinion 294 whose rotation is transmitted from the motor 292 fixed to 0 through the reduction gear meshes with the rack 296, and the box 290 moves in accordance with the rotation direction and speed of the motor 292. Guide rails 300 and 302 are provided inside the X-direction rails 264 and 266, respectively, and a guide wheel 306 provided on the box moves along the guide rails 306 and 302.
An X-ray irradiator is suspended in the box 290.

Although not shown in FIGS. 12 and 13, the Y-rail and the box 292 are provided with microswitches, and when they are detected to be out of the safe area, a signal is sent to a computer (not shown) to issue an alarm. And stop automatically. The traveling carriage 252 shown in FIG.
3 motors and speed reducers 270, 272, 292, a box 290, and the like. With the above configuration, the X-ray irradiation unit can be easily moved in the X direction and the Y direction, and the X-ray irradiation unit and the imaging unit can be smoothly moved to a predetermined relationship without moving the bed, so that necessary imaging can be performed. . Further, since the bed is not moved in the X and Y directions, the treatment instrument can be attached, and the burden on the patient can be reduced. The control motor uses a direct current value, which allows precise speed control and direction control.

Next, the proximity console 500 will be described. As will be described later, the operation panel is provided in a separate room to protect doctors and X-ray technicians from X-ray exposure, and operates while talking with the examinee through a window and using a device such as a microphone. It is normal to do. However, due to advances in medicine, while performing surgery or performing treatment such as inserting a treatment instrument into a blood vessel, the state of the subject's body, the state of insertion of the instrument in the body, the position, etc. can be confirmed by X-ray. It has become necessary to do so. For this reason, in addition to the original operation panel in a separate room, it is essential to have a proximity operation console that can be operated immediately while performing the above-mentioned treatment or surgery.

This proximity operation console is shown in FIGS. 14, 15 and 1.
6 will be described. The proximity console 500 has a shape in which the front side is narrow and the back side, which is the one side in one direction, is wide, and the front-rear relationship can be seen at a glance. This is because doctors and nurses can concentrate on other tasks such as treatment. The case 510 having such a shape has its surface covered with a soft material such as urethane foam. This is because you will not be injured if you touch or hit the console while concentrating on other tasks. In addition, four corners of the case 510, 514, 51
5, 516, and 517 have rounded corners, and it is necessary to have a roundness of 5 mm or more, preferably 20 mm or more, from the above-mentioned purpose and effect. In this embodiment, the corners 514 and 517 are rounded to 30 mm, and the corners 515 and 516 are rounded to 50 mm.
There is a grip 512 on the front side, which can be used to pull the console. The inside of the grip 512 is 30 mm to 5 in width.
A horizontally long hole 520 of 0 mm is provided. Grip 512
The operator's console can be moved back and forth, left and right, and up and down simply by putting a hand in the laterally long hole 520 without gripping. Corner 52 behind the long hole
No. 2 is also rounded and is 15 mm. However, since it is not a convex angle but a concave angle, it is small and easy to wipe off stains such as blood and chemicals. Inside the case 510, there are many operation switches, joysticks, and display devices.

FIG. 15 is a side view and FIG. 16 is a sectional view.
There is a switch and a joystick in the center of the case 510, while a back cover 524 is provided on the back side.
Is held by an arm hung from the ceiling or a stand having wheels, which will be described later. Case back 524 compared to case 510
Is small and the circumference of the case is curved, making it easy to grip.
In this example, the perimeter 526 is a curved surface close to a circle. There is a recessed groove 527 on the back side to create a catch on the hand. The thickness 528 is 20 mm because it is easy to move the proximity console.
To 60 mm is desirable. The joystick is a back cover 52
The thickness of the back cover 524 solves the problem of the dimensional relationship of the detecting portion of the joystick arranged on the projection plane of FIG.

In FIG. 14, a photographing state display section 546 for displaying photographing conditions and states is provided at the center of the rear side 540. Next to it, there is an interlock release display section 544 showing the released state of the interlock. By bringing the display unit to the outside, that is to the back, the display is easy to see without disturbing it. There is an overall lock switch 542 at the left end. This switch 542 prevents a malfunction due to accidental touching or hitting an object on the switch or joystick on the operation console, and is effective in increasing the concentration of doctors and nurses on treatment. There is. An emergency switch 548 is provided at the right end. This is displayed in red and pressing this switch will stop all operations. This switch 548 is located at the far right end and is in a position where it is easily noticeable, which is effective for accurate and quick operation.

The switch group 552 has a function of controlling the position of the X-ray irradiator, and is capable of moving along the X-direction rail and the Y-direction rail, controlling the arm, and setting the height. Switch 554
There are two preset heights prepared by the height setting switch of the X-ray irradiation unit. By selecting with one of these switches, the preset height can be selected and the positioning can be performed automatically. Various operations are possible. The switch group 556 has a function of setting X-ray imaging conditions, and the switch group 558 selectively determines the size of the X-ray imaging unit, such as 16 inches or 12 inches. The switch group 560 is a selection switch that determines the arrangement of the captured images, and determines, for example, whether to arrange four images on one sheet or two images on one sheet. It should be noted that one of the monitor displays follows this condition and the other one displays a magnified view. The switch group 562 is a switch for reversing the layout of the screen and a switch for flipping the screen up and down, and it is possible to operate the display of the X-ray image, and the photographing screen follows it. The switch group 564 has a control function and a setting function for automatic shooting. The switch group 590 has an aperture control function, the switch 591 has a parallel movement control of the masks in the X direction and the Y direction, and the switch group 592 has a function of individually moving the masks. The movement amount and direction are controlled by the joystick 594. Be seen.

The switch group 610 is an X called a filter.
It has a function of determining the line irradiation range, and the switch 612 selectively determines whether the irradiation range is widened or narrowed. This filter is provided in the X-ray irradiation unit, and is performed by, for example, four diaphragm plates, and the movement of each diaphragm plate can be positioned for each by a joystick 614. The switch group 570 has a function of controlling the relationship between the X-ray irradiation unit and the bed, the switch 576 has a function of controlling the raising and lowering of the table 10, and the switch 574 maintains the inclination of the table 12 as it is and only the irradiation angle of the X-ray. The switch 572 has a function of raising a table for getting on and off the subject. Also switch 578
Has the function of lowering the head side of the table. The rotation or tilt of the table can be freely controlled with the joystick. The table tilt is operated by operating both the switch 578 and the joystick 580 in order to prevent a malfunction, and malfunction due to picking up an object can be prevented and safety is improved. The switch group 566 has a function of operating the compression tube, and the joystick 568 has a function of freely operating the compression tube. The switch group 620 has an X-ray imaging function, and the switch 622 has a function of weakening the X-ray dose for image confirmation before imaging. The switches 624 and 626 have a function of adjusting imaging timing and stopping X-ray irradiation after a predetermined time. The joystick 628 has a function of controlling the position of the light receiving unit and has a photographing instruction switch on the upper portion thereof. Since the joystick 628 is also provided with a photographing instruction switch at the same time, it is possible to capture images at the optimum timing, which leads to improvement in accuracy and speed.

In the above arrangement, the joystick is arranged in front of the joystick, and the operation switch is arranged next to the joystick. Therefore, the final positioning and the fine adjustment joystick, which most frequently requires nerves, are arranged in front, which is easy to use. The initial setting switch group 556 is at the back, but it is used less frequently, and since the start of the inspection is less likely to use other nerves,
The proximity control console is compact and easy to use.

FIG. 17 shows a floor-standing proximity console 800 according to another embodiment. A support 640 is attached to a base 630 having four wheels 634, and the proximity console 500 is fixed to this. The four wheels 634 are mounted rotatably by 360 degrees as indicated by arrows. Also stand 630
Has a foot switch 632 and has a function of irradiating a weak X-ray in order to determine a shooting position. In addition, the upper surface of the proximity console 500 is 800 mm to 1000 mm which is a height suitable for a doctor or a technician to stand and use from the floor 2.
Has a height of.

The operation device having the floor-mounted proximity operation console 800 has the same effects as those described for the arm-type fixed proximity operation console 500, but further has the following effects. Since the height is predetermined, the floor-mounted proximity console 800 can be moved laterally to quickly move to a desired position.

FIG. 18 is a view seen from the top of the room.
01 and the operation room 700 are separated by a wall, and the operation is performed through the window. The beds are placed parallel to the wall, and the X-direction rails 260 and 2 are aligned with the X-direction which is the longitudinal direction of the bed.
62 is fixed to the ceiling. In this embodiment, the monitor 400 and the proximity console 500 have the same X-direction rail 260,
It is supported by 262. A dotted line 706 indicates a signal line.
Since the same X-direction rails 260 and 262 are used, it is simple and inexpensive as a whole. Further, the trolley 552 of the monitor 400 and the proximity console 500 is set so as to move within a range provided outside the range of movement of the dolly 252 of the X-ray irradiation unit, so that it is safe and may not exceed these ranges. Since each content is equipped with a switch for overrun detection, it is safe to handle malfunctions.

FIG. 19 shows the same operation, effect and purpose in other embodiments. A rail 72 for monitor or proximity operation desk line in parallel with the moving rail for X-ray irradiation device
0 and 722 are provided.

[0043]

As described above, according to the present invention, the vertical support mechanism of the bed is provided on one side of the bed and on the end side of the center of the bed in the longitudinal direction, for example, on the foot side of the patient. Since it is arranged, it does not hinder the movement of the doctor around the bed of the upper half of the body of the person to be treated and the treatment work, and a space for installing another treatment instrument can be secured.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an X-ray imaging apparatus having a bidirectional fluoroscopic imaging function according to an embodiment of the present invention.

FIG. 2 is an enlarged view illustrating a configuration of a bed.

FIG. 3 is a diagram showing a configuration of a control mechanism that controls a posture of a bed.

FIG. 4 is a diagram showing a configuration of a grip of a bed.

FIG. 5 is a diagram for controlling control of a diaphragm mechanism that performs an X-ray mask function.

FIG. 6 is a diagram for controlling control of a diaphragm mechanism that performs an X-ray masking function.

FIG. 7 is a diagram showing a configuration of an image pickup mechanism that is an X-ray detection unit.

FIG. 8 is an enlarged view showing a configuration of an image receiving device of an image pickup mechanism.

FIG. 9 is a diagram illustrating a state in which a doctor treats a patient.

FIG. 10 is a diagram illustrating the insertion of a cassette loaded with a film.

FIG. 11 is a diagram illustrating insertion of a film changer instead of a cassette.

FIG. 12 is a diagram illustrating a configuration of a moving mechanism of the X-ray irradiation device.

FIG. 13 is a diagram illustrating a configuration of a moving mechanism of the X-ray irradiation device.

FIG. 14 is a front view showing a configuration of a proximity console.

FIG. 15 is a side view showing the configuration of the proximity console.

FIG. 16 is a cross-sectional view showing a configuration of a proximity console.

FIG. 17 is a front view showing a floor-standing console, which is another configuration example of the proximity console.

FIG. 18 is a layout view of the X-ray imaging apparatus according to the embodiment of the present invention viewed from above the room for explaining the layout status thereof.

FIG. 19 is a layout view seen from the top of a room for explaining another example of the layout of the X-ray imaging apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 4, 5 Walls of examination room 6 Ceiling 10 Bed 12 Table 14 Top plate 26 Footrest 30 Grip 34 Shoulder pad 36 Compression tube 60 Support mechanism 70 Control box 72 Hydraulic unit 80 Hydraulic cylinder 160 X-ray detector 168 Image receiver 190 Cassette 198 Film Changer 250 X-ray irradiation device 400 Monitor device 500 Proximity console

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mitsuru Onuma Mitsuru Onuma 1-280, Higashi Koikeku, Kokubunji, Tokyo Inside Hitachi Design Laboratory (72) Inventor Isamu Takekoshi 1-280, Higashi Koikeku, Tokyo Kokubunji City Hitachi, Ltd. Design Institute

Claims (13)

[Claims] 1. A table of a bed on which a subject is placed, a table supporting device having a function of inclining the table along an axis perpendicular to the longitudinal direction of the bed and raising and lowering the table, and an upper part of the bed on the subject side. An X-ray irradiator located at a distance from the upper surface of the table, and an X-ray image pickup device located at the bottom of the table. The support is a lateral support that supports the bed from the side of the bed and the lateral support. An X-ray imaging apparatus having a vertical support mechanism for moving a support up and down, wherein the vertical support mechanism is arranged on one side of the bed and offset from the longitudinal center of the bed toward the end portion. 2. The X-ray imaging apparatus according to claim 1, wherein the upper end of the vertical support is maintained below the upper surface of the table when the upper surface of the table is horizontally placed within a range of 600 mm to 1200 mm. 3. The X-ray imaging apparatus according to claim 1, wherein the upper surface of the table is lowered to 800 mm or less. 4. A table of a bed on which a subject is placed, a table support device having a function of inclining the table along an axis perpendicular to the longitudinal direction of the bed and raising and lowering the table, and an upper part of the bed on the subject side. An X-ray imaging apparatus including an X-ray irradiator located at a distance from the top surface of the table and an X-ray image pickup device located at the bottom of the table, and having accessory mounting means mounted on the side surface in the longitudinal direction of the table. 5. A table of a bed on which a subject is placed, a table support device having a function of inclining the table along an axis perpendicular to the longitudinal direction of the bed and raising and lowering the table, and an upper portion of the bed on the subject side. An X-ray imaging apparatus having an X-ray irradiating apparatus located at a distance from the upper surface of the table and an X-ray image capturing apparatus located at the lower portion of the table, with the lower surface of the head side end portion of the table being cut. 6. A table of a bed on which a subject is placed, a table supporting device having a function of moving the table of the bed up and down, and X-ray irradiation positioned above the subject at a distance from the table upper surface. An X-ray imaging apparatus having an apparatus and an X-ray imaging apparatus located below a table, and having an insertion opening for inserting an X-ray imaging film at the head-side end of the table. 7. The table has a top plate on an upper surface, rails for attaching accessories are provided on both side surfaces of the table, and the X-ray imaging film is provided inside a space formed by the top plate and the both side surfaces. An X-ray imaging device that can be inserted from the head side. 8. A table of a bed on which an examinee is placed, a table support device having a function of inclining the table along an axis perpendicular to the longitudinal direction of the bed and raising and lowering the table, and an upper part of the bed on the examinee's side. An X-ray irradiator located at a distance from the upper surface of the table, and an X-ray image pickup device located at the bottom of the table. X cut
X-ray equipment. 9. A table for a bed on which a subject is placed, a table support device for inclining the table along an axis in the Y direction that is perpendicular to the X direction which is the longitudinal direction of the bed, and a table on the upper side of the bed on the subject side. X located a distance from the top
It has a radiation irradiator and an X-ray image pickup device located under the table, and a grip fixing means is provided on the side surface of the table so that the foot portion of the grip extends along the side surface of the bed and can be rotated by the grip fixing means. Supported X-ray equipment. 10. The X-ray imaging apparatus according to claim 9, wherein at least the head side of the grip portion is inclined. 11. A bed table on which a subject is placed,
A table supporting device having a function of moving the table of the bed up and down, an X-ray irradiation device located at a distance from the upper surface of the table of the bed, and an X located at the bottom of the table.
And a guide unit for moving the X-ray image receiving unit of the X-ray image capturing apparatus extending in the X direction, which is the longitudinal direction of the bed, is provided on both sides of the lower portion of the table. The X-ray imaging apparatus is configured to move the X-ray image receiving unit along the guide portion extending in the X direction. 12. The X-ray imaging apparatus according to claim 11, wherein the X-ray image receiving unit is moved in a Y direction which is a direction intersecting with the X direction. 13. The X-ray image receiving unit according to claim 11, wherein the X-ray image receiving unit is provided with the guide unit so as to move in the foot direction by 800 mm or more along the X-direction image receiving unit, and the X-ray image receiving unit is placed on the foot side. An X-ray imaging system that allows a space for the film changer to be placed on the head side of the lower surface of the table when moved to.