JPH04256734A - Large animal diagnostic x-ray device - Google Patents

Abstract

PURPOSE:To improve the reproducibility and the operability of positioning of an X-ray tube device part and an X-ray image receiving device part. CONSTITUTION:With regard to an X-ray tube device part and an X-ray image receiving device part which are positioned, a position storage means and a positioning driving means are provided so that its position can be stored arbitrarily in a nonvolatile memory, and also, the X-ray tube device part and the X-ray image receiving device part can be positioned by moving them to its stored position by only a switch operation.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an X-ray apparatus for large animal diagnosis that performs X-ray examination of large animals such as racehorses as test subjects, and in particular, the present invention relates to an X-ray apparatus for diagnosing large animals such as racehorses. The present invention relates to an X-ray device for large animal diagnosis that can control the positioning of each device separately without being mechanically connected.

0002

[Prior Art] Recently, in large animal diagnostic X-ray apparatuses that perform X-ray examinations on large animals such as racehorses as test subjects, an X-ray tube unit and an X-ray image receiving unit have recently been developed without mechanical connection. , a system in which the positioning can be controlled separately has been considered (see Japanese Patent Application No. 75865/1986).

According to this, the space around the subject is released,
It is possible to miniaturize the apparatus and position the X-ray tube device and the X-ray image receiving device from multiple directions with respect to each part of the subject, making it extremely effective for X-ray examinations of large animals as subjects.

FIG. 3 shows a controller for controlling the positioning of the X-ray tube unit, the X-ray image receiving unit, etc. of this type of conventional apparatus. Here, the X-ray tube device section and the X-ray image receiving device section are each
The X-ray tube unit is embedded under the floor, the X-ray tube unit runs on the ceiling, the bucky unit, and the I. I. (Image intensifier)/TV camera device section (hereinafter referred to as the X-ray detection device section).

In FIG. 3, 41a to 41d are device section selection switches for selecting a device section for positioning control;
a is for the underfloor embedded X-ray tube device section, 41b is for the ceiling running X-ray tube device section, 41c is for the ceiling running bucky device section, 41
d is for the ceiling traveling X-ray detection device section.

Reference numerals 42a to 42c denote an X-ray tube device section (underfloor embedded X-ray tube device section, ceiling running X-ray tube device section) and an X-ray image receiving device section (ceiling running bucky device section, ceiling running X-ray detection device section). This is a combination selection switch that selects a combination of . Here, a combination selection switch 42a of an under-floor embedded X-ray tube device section and a ceiling-running bucky device section, a combination selection switch 42b of an under-floor embedded X-ray tube device section and a ceiling-running X-ray detection device section, and a ceiling-running X-ray tube device section are shown. and an overhead traveling bookie device combination selection switch 42c.

43a to 43e are device section selection switches 41
Movement operation switches for moving the device section selected in a to 41d, 43a is for up and down movement, 43b is for left and right movement, 43c is for forward and backward movement, 43d is for tilt movement, and 43e is rotation. It is for mobile operation.

44 is an automatic positioning switch.

That is, first, the device section selection switch 41a
- In step 41d, select one of the device parts to be controlled for positioning, and then move the front, back, top, bottom, left and right of the selected device part.
The rotational movement operation is performed using the movement operation switches 43a to 43e to adjust the spatial position and the direction of the optical axis.

After that, the combination selection switches 42a to 42
c selects the device section to be combined with the device section that has been moved.

Next, by pressing the automatic positioning switch 44, the selected device sections are automatically moved to a position opposite to the device sections that have already been moved and positioned, and their optical axes are aligned. It is positioned in the state.

0012

[Problems to be Solved by the Invention] As described above, in the prior art, for example, when the automatic positioning switch 44 is operated after positioning the X-ray image receiving device section, the X-ray tube device is moved to a position opposite to the X-ray image receiving device section. is automatically moved and positioned, but the operator must use the movement operation switches 43a to 43e to move the X-ray image receiving device section to be positioned first. This is natural since the test sites of the subject are various.

However, in the prior art, the apparatus section to be first positioned, in this example, the X-ray image receiving device section, is placed in the same position as in the past imaging (including fluoroscopy; the same in this specification), or in a similar position. Even in the case of positioning at a certain position, the operator has to carry out the positioning operation from the beginning, which poses problems in position reproducibility and operability.

[0014] This is a serious problem considering that the subject to be examined is a large animal, the operator's intentions cannot be understood, and there is a high risk of harm to the surroundings.

An object of the present invention is to provide excellent reproducibility and operability in positioning the X-ray tube device section and the X-ray image receiving device section, and in particular, to
The positioning of the X-ray tube device and the X-ray image receiving device is highly reproducible, extremely easy and quick when imaging the same position as the previous imaging position of the same subject, or when imaging the same position of the same subject. An object of the present invention is to provide an X-ray apparatus for large animal diagnosis that can be positioned at

[0016]

[Means for Solving the Problems] The above object is to provide an X-ray apparatus for large animal diagnosis in which the positioning of an X-ray tube device section and an X-ray image receiving device section can be controlled separately without mechanically coupling them. By operating the setting switch, the X-ray tube unit and
a position storage means for storing the current position of the radiation image receiving device in a non-volatile memory; and driving the X-ray tube device and the X-ray image receiving device to the positions stored in the non-volatile memory by operating a positioning drive switch. This is achieved by providing a positioning drive means for causing the positioning.

[0017]

[Operation] The position storage means stores the current positions of the X-ray tube device section and the X-ray image receiving device section in a nonvolatile memory by operating a position setting switch provided on a controller or the like. Therefore, when the same position of the same subject or the same position of the same subject has not been taken in the past, the X-ray tube unit and the After positioning is completed, if the position setting switch is operated, each position is stored in the nonvolatile memory.

The positioning drive means drives the X-ray tube device section and the X-ray image receiving device section to the positions stored in the nonvolatile memory by operating a positioning drive switch. Therefore, if the positioning drive switch is operated when the same position of the same subject has been photographed in the past, or the same position of the same subject has been photographed in the past,
The X-ray tube device section and the X-ray image receiving device section are automatically driven and positioned at the positions stored in the nonvolatile memory at the time of past imaging (positioning).

[0019] This improves the reproducibility and operability of positioning the X-ray tube device section and the X-ray image receiving device section. especially,
The positioning of the X-ray tube device and the X-ray image receiving device is highly reproducible, extremely easy and quick when imaging the same position as the previous imaging position of the same subject, or when imaging the same position of the same subject. It will be positioned at

[0020]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the large animal diagnostic X-ray apparatus according to the present invention. In FIG. 1, reference numeral 11 denotes a controller that controls the positioning of the X-ray tube device section, the X-ray image receiving device section, and the like. Here, two X-ray tube device sections and two X-ray image receiving device sections are provided, that is, as shown in FIG.
As shown in FIG. 2, the controller is equipped with an X-ray tube device section 21 embedded under the floor, an X-ray tube device section 22 running on the ceiling, a bucky device section 23, and an X-ray detection device section 24.

41a to 41d, 42 in this controller 11
a to 42c, 43a to 43e, and 44 are the same as in FIG. 3, respectively. Therefore, the moving operation switches 43a to 43e
The X-ray tube device sections 21 and 22, the bucky device section 23, and the , see arrow c), tilt movement (see arrow d), and rotational movement (see arrow d).
The following operations (see arrow H) are possible.

In FIG. 2, 25 is the floor surface, and 26 is the subject (
27 is an X-ray transparent pedestal on which the subject 26 is placed on the floor surface 25; 28 is a bucky device section 23;
This is a ceiling running rail for use. The X-ray tube device section 22 and the X-ray detection device section 24 also run on the ceiling like the bucky device section 23, but their configurations are similar to those of the conventional device.

The controller 11 also includes a plurality of selection switches, 16 in this case, A1 to A4, B1 to B4, C1 to
C4, D1 to D4, a position setting switch 11A, and a positioning drive switch 11B are provided.

12 is a microcomputer, 13 is an I/
O device, 14 is a motor control device, 15 is an encoder group,
16 is a motor group for each axis, and 17 is a nonvolatile memory.

In this case, the microcomputer 12:
The motor control device 1 controls the positioning of the X-ray tube device sections 21 and 22, the bucky device section 23, and the X-ray detection device section 24 mainly based on commands from the controller 11.
Control 4. Moreover, this microcomputer 12 is
Selection switches A1 to A4, B1 to B4, C of controller 11
1 to C4, D1 to D4 and position setting switches 11A and I
/O device 3, encoder group 15 and non-volatile memory 17
The X-ray tube device sections 21 and 22, the bucky device section 2
3 and the current position of the X-ray detection device section 24 are stored in the nonvolatile memory 17. Furthermore, this microcomputer 12 controls the selection switches A1 to A4, B1 to B4, C1 to C4, and D1 to D4 of the controller 11.
and positioning drive switch 11B, motor control device 14
and a positioning drive means for driving the X-ray tube device sections 21 and 22, the bucky device section 23, and the X-ray detection device section 24 to the positions stored in the nonvolatile memory 17 by each axis motor group 16. It forms the main structure of

The I/O device 13 also includes an encoder group 15
The microcomputer 1 records the vertical, horizontal, longitudinal, tilted, and rotational positions of each of the X-ray tube device sections 21, 22, bucky device section 23, and X-ray detection device section 24 detected by the microcomputer 1.
Give to 2.

Further, the motor control device 14 drives the motor group 16 for each axis according to instructions from the microcomputer 12, and controls the X-ray tube device sections 21, 22 and bucky device section 23.
and the top and bottom, left and right, front and back of each of the X-ray detection device section 24,
Performs positioning movements such as tilting and rotation.

The nonvolatile memory 17 stores the current positions of the X-ray tube device sections 21, 22, bucky device section 23, and X-ray detection device section 24 as described above, but the writing and reading thereof are , here it is done as follows. That is, the selection switches A1 to A4, B of the controller 11
By operating any one of 1 to B4, C1 to C4, and D1 to D4 along with the operation of the position setting switch 11A (here, before operation of the position setting switch 11A), the device parts 21 to The current position of 24 is written and stored in the nonvolatile memory 17 at the address corresponding to the selection switch. Further, the selection switches A1 to A4, B1 to
B4, C1 to C4, and D1 to D4, any one selection switch is selected by operating the positioning drive switch 11B (
(Here, before operating the positioning drive switch 11B), the position information of the device sections 21 to 24 at the address corresponding to the selection switch is transferred to the nonvolatile memory 1.
It is read from 7.

Next, the operation of the above-mentioned apparatus of the present invention will be explained. Assume that the current imaging target is not the same position of the same subject 26 that was photographed in the past, or the same position of the same subject 26. As in the case of the conventional device, the switches 41a to 41d, 42a to 42a of the controller 11
42c, 43a to 43e and 44 to operate each device section 2.
1 to 24 are assumed to be positioned at desired positions.

FIG. 2 shows a state in which the ceiling traveling bucky device section 23 faces the under-floor embedded X-ray tube device section 21 and is positioned at the imaging position of the pelvic region of the subject 26. At this time (either before or after shooting is fine), controller 1
1 selection switch A1-A4, B1-B4, C1-C4
, D1 to D4, for example, the selection switch A1, and then the position setting switch 11A, the microcomputer 12 forming the main component of the position storage means is activated to store the position. .

As a result, each position information from the encoder group 15 indicating the up/down, left/right, front/rear, tilt angle, and rotation angle of each of the device sections 21 to 24 is transmitted to the microcomputer via the I/O device 13. The current position of each device section 21 to 24 is written and stored in the nonvolatile memory 17 at the address corresponding to the selection switch A1.

Next, it is assumed that at the time of subsequent imaging, imaging of the same subject 26 at the same position, or imaging of a similar subject 26 at the same position has been performed in the past. In this case, the selection switches A1 to A4, B1 to B of the controller 11 are
4, C1 to C4, D1 to D4, in this case the selection switch A1, and then the positioning drive switch 11B, the microcomputer that constitutes the main component of the positioning drive means is activated. The controller 12 performs positioning drive control.

As a result, the positional information of the device sections 21 to 24 at the address corresponding to the selection switch A1 is read out from the nonvolatile memory 17, and the motors of each axis are controlled via the motor control device 14 according to the positional information. Drives the group 16 and drives the device section 2
1 to 24, each of the vertical, horizontal, longitudinal, tilt angle, and rotation angle positioning movements is performed. The device units 21 to 24 are automatically driven and positioned at the same position as when the same position of the same subject 26 was photographed in the past or when the same position of the same subject 26 was photographed.

[0035] This improves the reproducibility and operability of positioning each device section 21-24. In particular, the same subject 2
When photographing the same position as the past photographing position of No. 6, or when photographing the same position of the same subject 26, the positioning of the device sections 21 to 24 is performed with good reproducibility, and the positioning is performed extremely easily and quickly. .

The present invention is also useful when photographing the same position of the subject 26 as previously performed, since the position of subject photography (fluoroscopy) varies depending on the type of subject 26. This is because equivalent positions are common (especially in the case of quadrupedal animals). In such a case, after the automatic positioning described above, the switch 41 of the controller 11 is
a-41d, 42a-42c, 43a-43e and 44
What is necessary is just to operate and adjust the position of each device part 21-24.

[0037]

[Effects of the Invention] As explained above, according to the present invention, with respect to the positioned X-ray tube device section and X-ray image receiving device section,
Optionally, the location may be stored in non-volatile memory, and
The ray tube unit and the
Excellent reproducibility and operability in positioning the ray tube device section and the X-ray image receiving device section. In particular, the positioning of the X-ray tube unit and the X-ray image receiving unit is highly reproducible and extremely easy when imaging the same position as the previous imaging position of the same subject, or when imaging the same position of the same subject. This has the effect of allowing quick positioning. This is extremely useful considering that the subject is a large animal, the operator's intentions cannot be understood, and there is a high possibility of harm to the surroundings.

Furthermore, in the case where a plurality of at least one of the X-ray tube device section and the X-ray image receiving device section is provided, and a plurality of combinations of the X-ray tube device section and the X-ray image receiving device section are provided, the conventional apparatus The reproducibility and operability of positioning each device part deteriorate. However, according to the present invention, there is also the effect that the same reproducibility and operability can be obtained by the same operation as when the combination of the X-ray tube device section and the X-ray image receiving device section is a single set.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the device of the present invention.

FIG. 2 is a perspective view showing an outline of the arrangement of an X-ray tube device section and an X-ray image receiving device section of the X-ray apparatus for large animal diagnosis.

FIG. 3 is a plan view of a controller of a conventional device.

[Explanation of symbols]

11 Controller 11A Position setting switch 11B Positioning drive switch A1 to A4
Selection switch B1-B4 Selection switch C1-C4 Selection switch D1-D4 Selection switch 12 Microcomputer 13
I/O device 14 Motor control device 15 Encoder group 16 Axis motor group 17 Nonvolatile memory 21 Underfloor embedded X-ray tube device section 22
Ceiling running X-ray tube device section 23
Ceiling traveling bucky device section 24 Ceiling traveling X-ray detection device section 25 Floor surface 26 Subject (large animal) 27
X-ray transparent mount

Claims (2)

[Claims] 1. An X-ray apparatus for large animal diagnosis in which the positioning of an X-ray tube device section and an X-ray image receiving device section can be controlled separately without mechanically coupling the X-ray tube device section and the X-ray image receiving device section. a position storage means for storing the current positions of the tube device section and the X-ray image receiving device section in a non-volatile memory; 1. An X-ray apparatus for diagnosis of large animals, comprising: a positioning drive means for driving the apparatus section. 2. An X-ray apparatus for large animal diagnosis in which the positioning of an X-ray tube device section and an X-ray image receiving device section can be controlled separately without mechanically coupling them, comprising: a plurality of selection switches;
By operating any one of the plurality of selection switches in conjunction with the operation of the position setting switch, the current positions of the X-ray tube device section and the X-ray image receiving device section can be set at the address corresponding to the selection switch. position storage means for storing in a non-volatile memory; and by operating any one selection switch among the plurality of selection switches in conjunction with the operation of the positioning drive switch, the non-volatile memory stores an address corresponding to the selection switch; An X-ray apparatus for diagnosing large animals, comprising a positioning drive means for driving the X-ray tube device section and the X-ray image receiving device section to positions stored in the X-ray apparatus.