JPS63281629A - X-ray fluoroscopic imaging apparatus - Google Patents

Abstract

PURPOSE:To automatically perform the positioning of a Bucky apparatus, by moving the Bucky apparatus in conjunction with the movement of an X-ray tube support apparatus. CONSTITUTION:When an X-ray tube support apparatus 2 is moved along a rail 7 in a horizontal direction in order to perform the positioning of the photographing area of an examinee in such a state that the examinee is laid down on a top plate 21, the position thereof is detected by an encoder 2 to be sent to a control apparatus 22 as position data. The control apparatus 22 controls a servo motor 13 on the basis of said position data so that a Bucky apparatus 3 moves in conjunction with the movement of the X-ray tube support apparatus 2. The position of the Bucky apparatus 3 can be detected by the encoder 12. As mentioned above, by moving the Bucky apparatus 3 in conjunction with the movement of the x-ray tube support apparatus 2 by the function of the control apparatus 22 when the positioning of the photographing area of the examinee is performed, the positioning of the photographing center of the Bucky apparatus 3 can be automatically performed at the same time.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention provides an X
The present invention relates to a fluoroscopic imaging device.

(Prior art) An X-ray tube support device that movably supports an X-ray tube along a rail provided on the ceiling and an X-ray fluoroscopic imaging table incorporating a Butsky device having a cassette tray are used to An X-ray fluoroscopic imaging device that performs X-ray imaging is known.

When performing X-ray photography with such an imaging device, it is necessary to position the enemy's shadow part of the subject and use the Butsky device's i! ! It is necessary to position the center of the shadow. The former is performed by projecting the crosshair mark (center of the irradiation field) of the multiple apertures attached to the X-ray tube support device onto the patient using a lamp, and the latter is performed by projecting the crosshair mark (center of the irradiation field) of the multiple apertures attached to the X-ray tube support device onto the subject, and the latter is performed by projecting the crosshair mark (center of the irradiation field) of the multiple apertures attached to the X-ray tube support device, and the latter is performed by projecting the crosshair mark (center of the irradiation field) of the multiple apertures attached to the X-ray tube support device onto the examinee. This is done by aligning the film center mark of 1 with the crosshair mark of the multiple aperture. In any of these positioning operations, the operator manually moves the X-ray tube support device and Butsky device to the desired position.

(Problems to be Solved by the Invention) In the conventional photographing device, in order to position the photographing center of the Butski device, it is necessary to manually move the Butski device to align the film center mark with the center of the irradiation field. There is a problem in that the work becomes cumbersome and time consuming, which reduces diagnostic efficiency.

The present invention has been made in response to such problems, and it is an object of the present invention to provide an X-ray fluoroscopic imaging apparatus in which the Butsky apparatus is automatically positioned.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object quickly, the present invention is characterized by comprising a control means for moving the Butsky device in conjunction with the movement of the X-ray tube support device. It is said that

(Function) When the X-ray tube support device moves, the Butsky device is controlled by the control means to move in conjunction with this movement. Therefore, since the positioning of the Butsky device is performed automatically without manual operation, diagnostic efficiency can be improved.

(Embodiment) FIG. 1 is a configuration diagram showing an X-ray fluoroscopic imaging apparatus according to an embodiment of the present invention.
A cassette tray 4 for storing a film is attached to the book key device 3, and the book key device 3 is configured to be movable in the horizontal direction, for example, in the direction of the arrow. Top plate 21
A subject (not shown) is placed on the bench. In FIG. 1, as an example, the X-ray fluoroscopic imaging table 1 is shown arranged horizontally, but this imaging table 1 is configured so that it can also be arranged vertically, and accordingly, the Butsky device 3 is also arranged vertically. movably placed. An X-ray tube 5 and a multiple diaphragm 6 marked with crosshair marks are attached, and the support device 2 is configured to be movable, for example, in the horizontal direction along a rail 7 provided on the ceiling. When the X-ray fluoroscopy table 1 is arranged in a vertical direction corresponding to the arrangement state, the X-ray tube support device 2 is also arranged so as to be movable in the vertical direction.

As shown in FIG. 2, the end of the X-ray tube support device 2 is connected to a chain 8, and this chain 8 is wound around a pair of sprockets 9 to move horizontally along the rail 7. configured to be possible. Also, sprocket 1 is connected to one sprocket 9 via chain 10.
1, a motor and an encoder (position detector) 12 are integrally attached to this sprocket 11,
It is configured to detect the position of the X-ray tube support device 2. It is also possible to use a combination of a pinion and a rack as the movement method.

As shown in FIG. 3, the Butkey device 3 of the X-ray fluoroscopic imaging table 1 is connected at its end to a chain 15, and this chain 15 is wound by a pair of sprockets 16, so that it can move in the horizontal direction. It is configured. Further, a detector 32 is provided at the retracted position of the button key device 3 for detecting whether or not the button key device 3 is at the retracted position. A speed reducer 14 is provided on the sprocket 16 via a chain 25, and the rotational force of the servo motor 13 is transmitted to the speed reducer 14. In addition, the servo motor 13 is equipped with a tacho generator (speed detector) as shown in Figure 4.
41 and an encoder (position detector) 42 are provided.

A control block diagram of the control device 22 provided between the X-ray tube support device 2 and the X-ray fluoroscopy table 1 is shown in FIG. Position information from the encoder 12 that detects the position of the X-ray tube support device 2 is sent to the position controller 44. On the other hand, the servo motor 13 that drives the Butsky device 3 has
A tacho generator 41 that detects the motor speed and an encoder 42 that detects the position of the butt key device 3 are provided. Then, based on the positional information from this encoder 42 and the positional information from the encoder 12, the optimum position of the butkey device 3 as the X-ray tube support device 2 moves is determined. Then, the servo controller 45 receives the position information from the position controller 44 and the tacho generator 4.
Based on the speed information from 1, the servo motor 13 is controlled so that the butkey device 3 is moved to the optimum position.

Next, the operation of this embodiment will be explained.

When the X-ray tube support device 2 is moved horizontally along the rail 7 in order to position the imaged part of the patient with the patient lying on the top plate 21, the encoder 12 moves to this position.
is detected and sent to the control device 22 as position information. Based on this position information, the control device 22 controls the servo motor 13 to move the Butkey device 3 in conjunction with this movement. The position of the Butkey device 3 can be detected by means of an encoder. According to such an embodiment, when performing the positioning device for the imaging part of the subject, the control device 22 moves the Butsky device 3 in conjunction with the movement of the X-ray tube support device 2, thereby simultaneously positioning the imaging site of the subject. It is possible to automatically position the @shadow center of the Butsky device 3. Therefore, the positioning operation is not as troublesome as in the case of manual operation, and can be performed in a short time, so that diagnostic performance can be improved. Furthermore, since positioning can be performed in a short time, there is no burden on the subject.

By configuring as in this embodiment, when the X-ray fluoroscopic imaging table 1 is arranged vertically, that is, when imaging is performed by raising and lowering it, a motor 13 and a speed reducer (with self-lock) 14 are provided. Since there is no need for a balance weight, it is possible to reduce the weight of the photographing device. In this regard, in the conventional device, as shown in FIG.
Since it was necessary to provide a balance weight 20,
It was inevitable that the imaging equipment would become larger.

[Effects of the Invention] As described above, according to the present invention, since the Butsky device is moved in conjunction with the movement of the X-ray tube support device,
The positioning of the Butsky device can be performed automatically.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an X-ray fluoroscopy apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing an X-ray tube support device of the apparatus according to the present invention, and FIG. A configuration diagram shown,
FIG. 4 is a block diagram showing the control system of the device of this embodiment, and FIG.
The figure is a configuration diagram showing a conventional butkey device. 1... X-ray fluoroscopy table, 2... X-ray tube support device, 3
...button key device, 4...cassette tray, 5...
・X-ray tube, 12.42...Encoder, 13...Servo motor, 14...Reducer, 21...Top plate, 22
. . . Control device, 31 . . . X-ray support device activation detector, 32 .

Claims (2)

[Claims] (1) In an X-ray fluoroscopic imaging apparatus incorporating an X-ray tube support device that movably supports an X-ray tube and a bucky device, a control means for moving the bucky device in conjunction with the movement of the X-ray tube support device. An X-ray fluoroscopic imaging device characterized by comprising: (2) The X-ray fluoroscopic imaging apparatus according to claim 1, wherein the X-ray tube support device and bucky device are provided with position detection means.