JPH06269432A - Fluororadiographic platen - Google Patents

Abstract

PURPOSE:To enable approach from both sides of a testee by arranging a first mechanism for turning an arm until a line connecting X-ray irradiating and detecting means gets out of the area of a top plate and a second mechanism for turning the arm in the same state so as to rotate the X-ray irradiating and detecting means oppositely each other on a photographing device supporting platen. CONSTITUTION:This fluororadiographic platen is provided with the first turning mechanism (a bearing box 40 and a shaft 32a) and the second turning mechanism (a bearing box 32 and a shaft 22a) on a photographing device supporting platen 50. Then, the first turning mechanism turns an arm 7 for supporting a radiographic apparatus 4 and an I.I. 9 until the virtual line linking them sufficiently gets out of the area of a top plate 3 and the radiographic apparatus itself is moved out of the area where the top plate is arranged. Therefore, the radiographic apparatus 4 or the I.I. 9 can be turned without interferring the top plate 3 by the turn of the second turning mechanism so that the positions of the radiographic apparatus 4 and the I.I. 9 can be respectively made opposite each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray fluoroscope.

[0002]

2. Description of the Related Art An X-ray fluoroscopic imaging stand is provided with an imaging device support base on one side of a top plate on which a subject is placed, and the imaging device support bases are arranged with the top plate in between. Let X
The radiation irradiation means and the X-ray detection means are supported via an arm.

As a result, the X-rays emitted from the X-ray irradiating means are transmitted through the subject on the top plate and input to the X-ray detecting means, and the X-rays of the subject are output by the X-ray detecting means. A perspective image is obtained.

In order to improve the efficiency of diagnosis, the X-ray fluoroscopic imaging stand having such a structure is provided with an X-ray irradiation means and an X-ray detection means so that the X-ray irradiation direction can be changed to perform imaging. There are provided a mechanism capable of slightly moving the fixed arm in its longitudinal direction, and a mechanism capable of slightly rotating the arm about its axis of symmetry.

An X-ray irradiating means is provided above the top plate so that the affected part of the subject can be finely imaged according to the position (whether on the ventral side or on the back side). , Or those equipped with X-ray detection means are manufactured as separate imaging tables.

[0006]

However, in the X-ray fluoroscopic imaging stand thus constructed, the imaging apparatus support stand is located on one side of the top plate, and they are substantially in mutual position. It is regulated.

For this reason, the operator or staff is inevitably forced to approach the subject on the tabletop only from the side where the imaging device support base is not arranged, and the efficiency of diagnosis is increased. There has been a limitation in improving.

The present invention has been made under such circumstances, and the object of the present invention is that X can be approached from any side of the subject.
It is to provide a fluoroscopic imaging stand.

Another object of the present invention is to provide an X-ray fluoroscopic imaging stand which can be used as a single device for two types of conventional devices.

[0010]

In order to achieve such an object, the present invention basically provides a top plate on which a subject is placed and one side of the top plate. An imaging device support base arranged in a state in which the position is substantially regulated with respect to the top plate, and the imaging device support base is provided with an X-ray irradiation unit and an X-ray detection unit, respectively, with the top plate interposed therebetween. In an X-ray fluoroscopic imaging table that supports and via an arm,
The imaging device support base includes a first rotation mechanism for rotating the arm until a virtual line connecting the X-ray irradiation means and the X-ray detection means is sufficiently displaced from the area of the top plate, and the first rotation mechanism. A second rotation mechanism for rotating the arm so that the positions of the X-ray irradiation means and the X-ray detection means are opposite to each other while being rotated by the rotation mechanism. It is characterized by becoming.

[0011]

The X-ray fluoroscopic imaging stand having the above-described structure has a structure in which a first rotating mechanism and a second rotating mechanism are provided on the imaging apparatus supporting table.

The first rotation mechanism rotates the arm that supports the X-ray irradiation means and the X-ray detection means until the virtual line connecting the X-ray irradiation means and the X-ray detection means is sufficiently displaced from the area of the top plate. ing.

This is because the X-ray irradiation means or the X-ray detection means does not interfere with the top plate due to the rotation by the second rotation mechanism to be performed next. You're moving it outside.

Therefore, by the rotation by the second rotating mechanism, the X-ray irradiating means or the X-ray detecting means can be rotated without interfering with the top plate, whereby the X-ray irradiating means and the X-ray irradiating means can be rotated.
It becomes possible to reverse the positions of the line detecting means and the line detecting means.

By returning the rotation by the first rotation mechanism to the original state, the X-ray irradiating means and the X-ray detecting means on the top plate can be replaced with each other, and the photographing can be performed as it is. Will be able to.

Therefore, even if the imaging device support base is arranged on one side of the subject, the replacement of the X-ray irradiation means and the X-ray detection means causes the imaging device support base to become an obstacle. It becomes possible to approach the subject from the same side.

Further, the one in which the X-ray irradiating means or the X-ray detecting means is arranged above the top plate and which is dedicated to each can be used in one device.

[0018]

2 and 3 are configuration diagrams showing an embodiment of an X-ray fluoroscopic imaging table according to the present invention. FIG. 2 is a plan view and FIG.
FIG. 3 is a sectional view taken along line III-III in FIG.

First, there is a top plate 3, and the top plate 3 is placed on the support frame 2. The support frame 2 is supported by a photographing device supporting base 50, which will be described later, and is moved or slightly rotated in a direction E in the drawing by a driving mechanism incorporated in the photographing device supporting base 50. There is.

An X-ray imaging device 4 is arranged below the top plate 3, and an image intensifier (II) 9 is arranged above the top plate 3. X-ray imaging apparatus 4 and I.D. I. 9 are fixed to the respective ends of the C-shaped arm 7, and the center of the arm 7 is supported by the photographing device support base 50.

The X-ray radiographing apparatus 4 has a drive section 13a interposed at a place where it is attached to the arm 7.
Can be moved in the direction A in the figure, and I. I. 9 is
A drive portion 13b is interposed at a place where the arm 7 is attached, and the drive portion 13b can move in the direction A in the drawing. That is, this allows the X-ray imaging apparatus 4 and the I.D. I. Each of the 9 can be brought closer to or farther from the top plate 3 side independently.

It should be noted that the X-ray imaging apparatus 4 has the I.S. I. 9
A diaphragm 5 is provided on the side of the I.V. I. 9 has the I.V. I. 9
A television camera 10 for converting an optical image obtained by the above into an electric signal is provided.

The arm 7 is supported by the photographing device supporting base 50 through the bearing box 22, and the arm 7 can move in the bearing box 22 in the extending direction of the arm (direction C in the drawing). There is.

Further, the bearing box 22 has a shaft (worm wheel) 34 projecting in the direction of the axis of symmetry of the arm 7, and the shaft 34 is rotatably supported by the bearing box 32 and can be rotated by the drive of the worm 31. It has become. As a result, the arm 7 can rotate in the E direction in the figure about the axis of symmetry.

In this embodiment, in particular, the bearing box 32 is provided with a shaft (worm wheel) 32a.
2a is provided so as to extend in the vertical direction (with respect to the top plate 3). The shaft 32a is rotatably supported by the bearing box 40 and can be rotated by driving the worm 42. This rotation can be performed by rotating the state of FIG. 3 to at least one side by approximately 90 °.

The state of this rotation is shown in FIG. That is,
The X-ray device 4 and the I.D. I. 9
An imaginary line connecting with and is sufficiently deviated from the area of the top plate 3.

Then, in the state shown in FIG. 1, the arm 7 can rotate at least 180 ° by driving the worm 31 in the bearing box 32. At this time, the top plate 2 does not become an obstacle, and the rotation can be achieved without causing any interference.

In FIG. 3, the bearing box 40 is supported by the leg 1 and can be moved along the guide 1a attached to the leg 1 in the front-back direction of the paper surface in the figure. There is.

According to the above-mentioned embodiment, the rotation of the first rotation mechanism shows the rotation in one direction, but it goes without saying that it may be bidirectional.

The X-ray fluoroscopic imaging stand thus constructed is
A first rotation mechanism (bearing box 40 and shaft 32a) and a second rotation mechanism (bearing box 32 and shaft 22a) are provided on the image-taking apparatus support base.
It is configured with and.

The first rotating mechanism is connected to the X-ray imaging device 4 and the I.D. I. The arm 7 that supports them is rotated until a virtual line connecting with 9 is sufficiently displaced from the area of the top plate 3.

This is performed by rotating the X-ray imaging apparatus 4 or the I.D. I. Since the camera 9 does not interfere with the top plate 3, it means that the photographing device itself is moved outside the area where the top plate is arranged.

Therefore, the X-ray imaging apparatus 4 or the I.D. I. 9 can be rotated without interfering with the top plate 3, whereby the X-ray imaging apparatus 4
And I. I. The positions of 9 and 9 can be reversed.

Then, by returning the rotation by the first rotation mechanism to the original position, the X-ray imaging device 4 and the I.S. I. 9 and 9 can be replaced with each other, and the photograph can be taken as it is.

From this fact, even if the imaging device support base 50 is arranged on one side of the subject, the X-ray imaging device 4
And I. I. By the above-described replacement of 9, the imaging device support base 50 can approach the subject from the same side without any obstacle.

Also, above the top plate 3, the X-ray imaging apparatus 4 or I.D. I. It becomes possible for one device to be used in common as the devices in which 9 and 9 are arranged respectively.

Further, as shown by the dotted line in FIG. 1, since the rotation θ of the arm by the first rotation mechanism causes the displacement of L _{1 in} the width direction of the top plate 3, E of the top plate 3 in the figure. The X-ray imaging apparatus 4 and the I.D. I. The effect that 9 can be positioned is produced.

[0038]

As is apparent from the above description,
According to the X-ray fluoroscopic imaging table of the present invention, it is possible to approach the subject from any side.

Further, one device can be used for both of the conventional two types of devices.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating an effect of an X-ray fluoroscopic imaging table according to the present invention.

FIG. 2 is a plan view showing an embodiment of an X-ray fluoroscopic imaging table according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

[Explanation of symbols]

 3 Top plate 4 X-ray imaging apparatus 7 Arm 9 I. I. 40, 32a 1st rotation mechanism 32, 22a 2nd rotation mechanism

Claims (1)

[Claims] 1. A top plate on which a subject is placed, and an imaging device support stand which is positioned on one side of the top plate and is arranged in a state in which the position of the top plate is substantially restricted with respect to the top plate. The imaging device support base is an X-ray fluoroscopic imaging base that supports, via an arm, an X-ray irradiation unit and an X-ray detection unit that are arranged with the top plate in between, and the imaging device support base is A first rotation mechanism for rotating the arm until a virtual line connecting the X-ray irradiation means and the X-ray detection means is sufficiently displaced from the area of the top plate, and a rotation by the first rotation mechanism. The above X in motion
An X-ray fluoroscopic imaging stand comprising: a second rotating mechanism for rotating the arm so that the positions of the X-ray irradiating unit and the X-ray detecting unit are reversed.