JP4149019B2 - Fluoroscopic table - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fluoroscopic imaging table for performing a stomach examination using X-rays, and more particularly, to a fluoroscopic imaging table with a reduced tilting range and depth for in-vehicle use.
[0002]
[Prior art]
In a conventional in-car fluoroscopic imaging table, there is an axis center that tilts the fluoroscopic imaging table outside the mounted rapid-viewing unit, and the trajectory at the time of tilting is compact because it tilts around that axis. There is a disadvantage that the depth of the fluoroscopic imaging table that requires a leg part that holds the tilting central axis provided outside the speed shooting unit is widened, and when this fluoroscopic imaging table is mounted vertically, the fluoroscopic imaging table is loaded There was no space for other units on the side, and at the same time, it was not possible to meet the demand to install a chest imaging device.
[0003]
In addition, a device provided with legs at the lower portion of the speed-taking section to be mounted has a wide range of raising / lowering and cannot be mounted laterally in the bus car.
[0004]
[Problems to be solved by the invention]
By making the length direction when the fluoroscopic imaging table for X-ray cars is tilted up to 2300mm or less of the width of the bus inside the bus, it is possible to horizontally stack, and the depth is also increased from about 1700mm to about 1400mm. It is an object of the present invention to provide a fluoroscopic imaging table that can improve space efficiency by simultaneously loading a chest imaging device on the side surface.
[0005]
[Means for Solving the Problems]
The above-mentioned purpose is to move the whole fluoroscopic imaging table to the head side of the subject when the bed on which the subject is placed is in a horizontal position in the standing position, and from the horizontal position to the reverse tilt direction. This is achieved by providing a slide mechanism for moving the whole fluoroscopic imaging table on the foot side of the subject when the body is tilted .
[0006]
Move the entire fluoroscopic imaging table upside down and simultaneously move the entire fluoroscopic imaging table to the head side when standing, and to the foot side when tilting backwards, while minimizing the range of movement when tilting the legs, Since it can be installed underneath, the depth is also more compact than the conventional device.
[0007]
For this reason, it can be installed horizontally in a bus with limited installation space, so there is room in the vehicle's vertical direction. In some cases, there is a need to shorten the vehicle body or to install other inspection equipment. Can also answer. In addition, when mounted in the bus in the vertical direction, a chest radiographing device or the like can be installed on the side of the fluoroscopic table, which facilitates the placement of inspection equipment.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the minimum components of a fluoroscopic imaging table. It is composed of a table 1 on which a subject is placed, an X-ray tube device 2 that generates X-rays on the table 1, and an image system device 3 that includes an image intensifier that receives the X-rays, and reduces the trajectory of the fluoroscopic imaging table. It can be seen that it is sufficient to bring the center of rotation around the point A which is the central portion of the X-ray tube apparatus 2, the image system equipment 3 and the table 1.
[0009]
In the conventional fluoroscopic imaging table 1, as shown in FIG. 2, the support leg portion 5 that supports the center of rotation of the point A is provided outside the X-ray tube support portion 4 of the fluoroscopic imaging table. There was a drawback.
[0010]
In the conventional fluoroscopic imaging table 2, the rotation center is provided under the table 1 of the fluoroscopic imaging table in FIG. 3 and the support leg 5 is installed under the X-ray tube support 4. However, there is a drawback that the trajectory at the time of raising and lowering becomes large. It can be seen that the X-ray tube device position 6 and the X-ray tube device position 7 at the time of reverse tilt (at −45 °) 7 are located outside the horizontal width of the table 1 when standing. In order to cover this drawback, we have devised a mechanism that moves the entire fluoroscopic imaging table by the difference between the X-ray tube device during standing and reverse tilting and the horizontal table. By adding this mechanism, even if the actual center of rotation is below the table, the entire fluoroscopic table moves, so the virtual center becomes point A in FIG. 1, and the locus of the fluoroscopic table becomes small.
[0011]
FIG. 4 shows an external view of a fluoroscopic imaging table that can move the entire fluoroscopic imaging table in the longitudinal direction. A rack 9 is provided in the longitudinal direction of the slide base 8 of the fluoroscopic imaging table, and a chain (for moving the fluoroscopic imaging table) 12, a gear (large) 13, and a gear (small) are arranged from the tilting drive motor 10 and the tilting drive speed reducer 11. ) The rack 9 is driven via 14. When operating from the horizontal position to the reverse tilt direction, the tilting drive speed reducer 11 rotates in the direction a in the figure, the chain 12 moves in the b direction, the gear (large) 13 is in the c direction, and the gear (small). By rotating 14 in the d direction, the entire fluoroscopic imaging table moves in the foot side direction. When operating from the horizontal position to the standing position, the vertical drive speed reducer 11, the chain 12, the gear (large) 13 and the gear (small) 14 are driven so that they rotate in the reverse direction from the horizontal position to the reverse tilt direction. The motor 10 may be rotated.
[0012]
At the time of raising / lowering, the raising / lowering rotating shaft 16 is rotated in the f direction by moving the chain (for raising / lowering) 15 in the e direction. The rotating frame 17 is activated by rotating the raising / lowering rotating shaft 16 in the direction f. Rotation support frame 18 is rotated in this state is because would hit the floor, which moves from raisably rotating shaft 16 of the chain (rotating frame) 20 obtained by multiplying the g direction to the rotary frame planetary gear (top) 19, which is fixed to the rotary frame upper 17 The external gear of the frame planetary gear (upper) 19 is rotated in the h direction. A support frame chain 22 is hung on a rotation frame planetary gear (upper) 19 and a rotation frame gear (lower) 21 provided above and below the rotation frame 17, and is connected to the support frame 18 by a support frame connection fitting 23. since 22 is moved in the i direction, the horizontal position → reverse tilt direction so that the operation of moving the support frame 18 to the foot side direction during operation be reversed inclined position support frame 18 need not touch the floor. The operation from the horizontal position to the standing direction is the reverse of this operation.
[0014]
【The invention's effect】
By using a fluoroscopic imaging table with such a mechanism, the depth of the fluoroscopic imaging table is made smaller than conventional devices while minimizing the trajectory during tilting, so when mounted on an X-ray vehicle, the fluoroscopic imaging table Since the depth direction is short and the length of the X-ray vehicle can be shortened. It becomes possible to go to mountainous areas where it was difficult to pass until now, and it is also possible to increase the number of examinees. Even when stacked vertically, it is possible to mount a chest imaging device on the side of the fluoroscopic imaging table at the same time, eliminating the need to install it in another place as in the past, resulting in a shorter vehicle body, and more Many inspection instruments can be installed, and inspection efficiency can be increased.
[0015]
In addition, even when a large room cannot be secured due to opening of the building or the like, installation in the longitudinal direction of the fluoroscopic imaging table can be reduced and the installation becomes easy. Since the installation space is small when installed in a conventional radiographing room, it is also possible to install examination instruments that have been increasing in recent years.
[0016]
The conventional fluoroscopic imaging table has a large operating range when it is tilted, so when a proximity console or chair is placed near the fluoroscopic imaging table, it may come in contact with the tilting operation and break. In the fluoroscopic imaging table using this mechanism, even if various instruments are installed in the vicinity of the fluoroscopic imaging table in which the up and down rotation range is easy to understand, there is little possibility of contact and breaking.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a minimum configuration of a fluoroscopic imaging table.
FIG. 2 shows an example of the conventional apparatus 1 that has a small up / down motion locus but a depth.
FIG. 3 shows an example of a conventional apparatus No. 2 with a small depth but a large tilting range.
FIG. 4 is a fluoroscopic imaging table having a mechanism for moving the entire fluoroscopic imaging table in the longitudinal direction when it is tilted according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Table 2 X-ray tube apparatus 3 Image-system apparatus 4 X-ray tube support part 5 Support leg part 6 X-ray tube apparatus position 7 at the time of standing position X-ray tube apparatus position 8 at the time of reverse position Slide base 9 Rack 10 Erecting drive Motor 11 Tilting drive speed reducer 12 Chain (for movement)
13 Gear (Large)
14 Small gear
15 Chain (for tilting movement)
16 Rotating shaft 17 Rotating frame 18 Support frame 19 Rotating frame planetary gear (upper)
20 Chain (Rotating frame)
21 Rotating frame gear (bottom)
22 Support frame chain 23 Support frame connecting bracket

Claims (2)

A motor (10);
A first chain (15) for transmitting power of the motor (10), a first rotating part (16) rotated by the first chain (15), and a first rotating part (16). rotary frame electromotive倒動operation is performed by rotating the (17) seen including a force Taosuru rotating mechanism shooting stand by raising倒動operation of the rotary frame based on the power of the motor (10) (17),
A second chain (12) for transmitting the power of the motor (10); and first gears (13) (14) rotated by the second chain (12 ); A fluoroscopic imaging table comprising: a slide mechanism that slides the imaging table in a longitudinal direction with respect to a slide base by rotating the first gears (13) and (14) based on power . A third chain (20) that moves by rotation of the first rotating part (16) based on the power of the motor (10) transmitted through the first chain (15), and the rotating frame ( It is fixed to 17), and a second gear that rotates (19) by said third chain (20), a fourth chain (22) moved by said second gear (19), the fourth The fluoroscopic imaging table according to claim 1, further comprising a support frame (18) that moves in a head direction or a foot direction by a rotating operation of the chain (22) .

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