JPH08117219A - Ct devic - Google Patents

Abstract

PURPOSE: To simply give a vertical drive instruction to the base of an upper structure of a table and an approach/separate direction drive instruction to the gantry of a cradle. CONSTITUTION: A vertical drive instruction to the base 34 of an upper structure 35 of a table 33 and an approach/separate direction drive instruction to the gantry 31 of a cradle 36 are given by one lever switch 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gantry, a base placed on the floor, an upper structure movably provided in the up and down direction with respect to the base, and an examinee placed on the upper structure. It is slidably mounted on the top and approaches the gantry /
The present invention relates to a CT device having a table composed of a cradle that can be separated.

[0002]

2. Description of the Related Art A conventional example will be described with reference to the drawings. Figure 3
FIG. 4 is a side view of the X-ray CT apparatus, FIG. 4 is a view in the direction of arrow A in FIG. 3, and FIG. 5 is an explanatory view of the operation switch panel in FIG.

In FIGS. 3 and 4, reference numeral 1 denotes an X-ray tube for irradiating the subject with X-rays while rotating around the subject in the subject insertion hole 2 and an X-ray transmitted through the subject. It is a gantry that has a detection unit inside.

Reference numeral 3 is a table. This table 3
A base 4 placed on the floor, an upper structure 5 movably provided in the vertical direction with respect to the base 4, a subject is placed on the upper structure 5, and the upper structure 5 is slidably provided on the gantry. It consists of a cradle 6 that can approach / separate from 1.

Further, the gantry 1 is tiltable in the direction of the table 3. The conical opening of the subject insertion hole on the surface side of the gantry 1 facing the table 3 emits a cross-shaped light at the top and the left and right three positions, and a positioning light 7 indicating the scan origin position is provided. It is provided.

Further, on the upper side of the surface of the gantry 1 facing the table 3, both sides of the table 3 are inserted through the subject insertion holes.
There is provided a switch panel 8 for instructing driving.
In addition, the down switch 25 and the up switch 26 for instructing the base 4 to move down and up the upper structure 5 of the table 3
Is provided.

The switch panel 8 may be provided on the side surface of the table 3. Next, the switch panel 8 will be described with reference to FIG. Reference numeral 10 is an up switch for instructing the upper structure 5 to rise, 11 is a down switch for instructing the lower structure 5 to descend, and 12 is a height switch for displaying the current height of the upper structure 5 on the display unit 13. .

Reference numeral 14 is an in switch for driving the cradle 6 in a direction of approaching the gantry 1, 15 is an out switch for driving the cradle 6 in a direction of separating from the gantry 1, and 16 is a fast speed for driving the cradle 6. It is a switch.

Reference numeral 17 is a forward switch for tilting the top side of the gantry 1 toward the table 3, and 18 is the gantry 1.
A backward switch for tilting the top side of the table in a direction away from the table 3, and a gantry tilt range switch 19 for displaying the current tiltable range angle of the gantry 1 on the display section 13.

Reference numeral 20 is a scan position moving switch for moving the affected part of the subject at the origin to the scan position of the gantry 1, 21 is an origin setting switch, 22 is a positioning light switch for instructing to turn on the positioning light 7, and 23 is a table 3. Upper structure 5 and cradle 6
To the home position switch,
24 is an emergency stop switch.

Next, the operation of the above configuration will be described. (1) With the upper structure 5 of the table 3 lowered to near the floor, the subject is placed on the cradle 6 and the subject is fixed to the cradle 6 using a fixing band.

(2) The up switch 10 or the up switch 26 is turned on to raise the upper structure 5 to the vicinity of the scan height. (3) Turn on the in-switch 14 to drive the cradle 6 in the direction of approaching the gantry 1.

(4) The positioning light switch 22 is turned on. (5) Four switches, that is, up switch 10, up switch 26, down switch 11, down switch 2
5, the in switch 14 and the out switch 15 are operated to position the affected part of the subject at the scan origin position indicated by the positioning light 7.

(6) When the positioning is completed, the origin setting switch 21 is turned on to set the scanning origin position. (7) Turn on the scan position movement switch 20, and then
When the in-switch 14 is turned on, the cradle 6 is driven in a direction approaching the gantry 1, the affected part of the subject at the origin position is moved to the scan center, and automatically stopped. At this time, by turning on the scan position moving switch 20, the in switch 14 is a so-called "dead man switch" in which the drive of the cradle 6 is turned off when the operating force is released.

(8) The affected area of the subject is scanned. (9) When the scan is completed, the home position switch 23 is turned on to return the subject to the home position.

[0016]

However, the CT having the above configuration
In the apparatus, when positioning the affected part of the subject at the scan origin position in (5), the technician selects the up switch 10 (up switch 26), the down switch 11 (down switch 25), the in switch 14 and the out switch 15. You have to operate a total of four switches.

Since these four switches are independent of each other, when the technician operates each switch, he or she must move his or her line of sight from the subject to the switch panel 8 for confirmation. There is a problem that it takes time and labor, and further, the attention of the subject is distracted.

The present invention has been made in view of the above problems, and an object thereof is to give a vertical drive instruction to a base of an upper structure of a table and to drive a cradle in an approaching / separating direction with respect to a gantry. CT with easy instructions
To provide a device.

[0019]

The invention for solving the above-mentioned problems is to provide a gantry, a base placed on the floor, an upper structure movable vertically with respect to the base, and a subject placed on the base. And a CT device provided with a cradle slidably provided on the upper structure and capable of approaching and separating from a gantry, in a vertical drive with respect to the base of the upper structure of the table. Instruct and approach the gantry in the cradle
/ One operation switch is used to give a drive instruction in the separating direction.

From the viewpoint of ease of operation, the operation switch is preferably provided on the surface of the gantry facing the CT table or on the gantry side of the upper structure of the table.

Further, as an operation switch, it can be tilted in two axial directions, one axial direction is a vertical drive instruction to the base of the upper structure, and the other axial direction is an approach / separation direction with respect to the gantry of the cradle. There is a lever switch that is a drive command.

Further, from the viewpoint of ease of operation, it is desirable that the respective tilting directions of the lever switch and the moving directions of the upper structure and the cradle are substantially the same.

[0023]

In the CT apparatus of the present invention, one operation switch is used to give an up-down direction drive instruction to the base of the table upper structure and an approach / separation direction drive instruction to the cradle gantry. The technician can easily operate it without moving the line of sight from the subject.

By providing the operation switch on the surface of the gantry facing the CT table or on the gantry side of the upper structure of the table, the marker of the positioning light can be easily seen and the positioning of the subject on the origin of the affected area is easy. Becomes

Further, as an operation switch, it can be tilted in two axial directions, one axial direction is a vertical drive instruction to the base of the upper structure, and the other axial direction is an approach / separation direction with respect to the gantry of the cradle. When a lever switch that is a drive instruction is used, the operation becomes easier by making the respective tilting directions of the lever switch substantially coincide with the moving directions of the upper structure and the cradle.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of an embodiment of the present invention, and FIG.
6 is a view in the direction of arrow B in FIG.

In FIG. 1 and FIG. 2, reference numeral 31 designates a subject while rotating around the subject in the subject insertion hole 32.
It is a gantry having an X-ray tube for irradiating X-rays and a detection unit for detecting X-rays transmitted through a subject.

Reference numeral 33 is a table. This table 33
Is a base 34 placed on the floor, an upper structure 35 movably provided in the vertical direction with respect to the base 34, and a subject placed on the upper structure 35 slidably provided on the upper structure 35. , Cradle 3 that can move toward and away from the gantry 31
It consists of 6.

Further, the gantry 31 can be tilted toward the table 33. In the conical opening of the subject insertion hole 32 on the surface side of the gantry 31 facing the table 33,
Positioning lights 37 that emit cross-shaped light and indicate the scan origin position are provided at the top and three places on the left and right.

Further, on the upper part of the surface of the gantry 31 facing the table 33, switch panels 38 for instructing the driving of the table 3 are provided on both sides through the subject insertion hole 32.

Below the switch panel 38 on the surface of the gantry 31 facing the table 33, the subject insertion hole 32 is provided.
Lever switches 40 are provided on both sides via the.
The lever switch 40 can be tilted in two axial directions. One axial direction instructs the upper structure 35 to drive the base 34 in the vertical direction, and the other axial direction drives the cradle 36 to move toward / away from the gantry 31. It is designed to give instructions.

Further, the respective tilting directions of the lever switch 40 and the moving directions of the table 38 upper structure 35 and the gantry 31 are substantially aligned with each other. Also, the switch panel 38 has
A switch similar to the switch panel 8 of FIG. 5 described in the conventional example may be provided, or the function of the lever switch 40, that is, the up switch 10, the down switch 11,
The in switch 14 and the out switch 15 may be excluded from the switch panel 38.

Further, in this embodiment, the lever switch 40
If the pressure sensor 42 is provided in the shaded portion of the grip 41 of the table 41 facing the gantry 31 and the engineer does not grasp the grip 41 of the lever switch 40, the upper structure 35 of the table 33 and the cradle 36 cannot be driven. It is like this.

Next, the operation of the above configuration will be described. (1) With the upper structure 5 of the table 33 lowered to near the floor, the subject is placed on the cradle 36, and the subject is fixed to the cradle 36 using a fixing band.

(2) The up switch of the switch panel 38 is turned on to raise the upper structure 35 to the vicinity of the scan height. (3) In switch of switch panel 38 or base 34
The up switch is turned on to drive the cradle 36 toward the gantry 31.

(4) Turn on the positioning light switch 22. (5) The lever switch 40 is operated to position the affected part of the subject at the scan origin position indicated by the positioning light 37.

(6) When the positioning is completed, the origin setting switch of the switch panel 38 is turned on to set the scanning origin position. (7) When the scan position movement switch of the switch panel 38 is turned on and then the in switch is turned on, the cradle 36 is driven in the gantry direction, and when the affected part of the subject at the origin position is moved to the scan center, it is automatically Stop. At this time, by turning on the scan position moving switch of the switch panel 38, the in switch is a so-called "dead man switch" in which the drive of the cradle 36 is turned off when the operating force is released.

(8) The affected area of the subject is scanned. (9) When the scan is completed, the home position switch of the switch panel 38 is turned on to return the subject to the home position.

According to the above construction, in the work of (5), the technician can position the affected part of the subject at the scan origin position by operating only one lever switch 40.
Therefore, there is no need to operate a total of four switches, an up switch, a down switch, an in switch, and an out switch, as in the past, and it is not necessary to move the line of sight from the subject to the switch panel for confirmation. It takes less time.

Further, by substantially matching the respective tilting directions of the lever switch 40 with the moving directions of the upper structure 35 of the table 38 and the cradle 36, the operating direction and the driving direction are aligned with each other, which facilitates the operation. .

Since the lever switches 40 are provided on both sides of the gantry 31 below the switch panel 38 on the surface facing the table 33 through the subject insertion hole 32, the subject can be positioned at the origin of the affected area. It will be easy.

Further, a pressure sensor 42 is provided on the grip 41 of the lever switch 40, and an engineer can use this pressure sensor 42.
Since the upper structure 35 of the table 33 and the cradle 36 cannot be driven unless the grip 41 of the table 33 is grasped, something hits the lever switch 40 after completion of the positioning work, and the upper structure of the table 33. It is possible to prevent the trouble that the positioning position is displaced due to the driving of the cradle 35 and the cradle 36.

The present invention is not limited to the above embodiment. Although the lever switch 40 is provided on the gantry 31 in the above embodiment, it may be provided on the upper structure 35 of the table 33.

Further, the pressure sensor 42 is attached to the lever switch 40.
However, an optical sensor may be used instead. Furthermore, the top of the grip 41 of the lever switch 40 and the lever switch 4
Even if the lever switch 40 is tilted, the table
Even if the upper structure 35 of 3 and the cradle 36 are not driven, the same effect can be obtained.

Further, if there is enough space, a scan position moving switch for moving the affected part of the subject at the origin to the scan position of the gantry 31 near the lever switch 40, an origin setting switch, and a positioning light 37. A positioning light switch or the like for instructing to turn on may be provided.

[0046]

As described above, according to the CT apparatus of the present invention, it is possible to give a vertical drive instruction to the base of the upper structure of the table and a drive instruction to the gantry of the cradle to approach / separate. By performing with one operation switch, the technician can easily operate without moving the line of sight from the subject.

Further, by providing the operation switch on the surface of the gantry facing the CT table or on the gantry side of the upper structure of the table, the marker of the positioning light can be easily seen and the positioning of the subject to the origin of the affected area can be performed. Will be easier.

Further, as an operation switch, it can be tilted in two axial directions, one axial direction is a vertical drive instruction to the base of the upper structure, and the other axial direction is an approach / separation direction with respect to the gantry of the cradle. When a lever switch that is a drive instruction is used, the operation becomes easier by making the respective tilting directions of the lever switch substantially coincide with the moving directions of the upper structure and the cradle.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a view on arrow B in FIG.

FIG. 3 is a side view of an X-ray CT apparatus.

FIG. 4 is a view on arrow A in FIG.

5 is an explanatory diagram of an operation switch panel in FIG.

[Explanation of symbols]

 31 Gantry 32 Subject Insertion Hole 33 Table 34 Base 35 Upper Structure 36 Cradle 40 Lever Switch

Claims (5)

[Claims] 1. A gantry, a base placed on a floor, an upper structure movable vertically with respect to the base, and a subject placed on the upper structure so that the subject can slide on the upper structure. In a CT device provided with a table consisting of a cradle that can approach / separate from the gantry, a vertical drive instruction to the base of the upper structure of the table, and to the gantry of the cradle A CT device characterized in that a single operation switch is used to issue a drive instruction in the approaching / separating direction. 2. The CT apparatus according to claim 1, wherein the operation switch is provided on a surface of the gantry facing the CT table. 3. The CT apparatus according to claim 1, wherein the operation switch is provided on a gantry side of an upper structure of the table. 4. The operation switch is a lever switch that can be tilted in two axial directions. One axial direction is an instruction to drive the base of the upper structure in a vertical direction, and the other axial direction is the gantry of the cradle. The CT apparatus according to claim 1, wherein the CT instruction is a drive instruction in an approaching / separating direction. 5. The tilting direction of the lever switch and the moving directions of the upper structure and the cradle are substantially the same as each other.
CT device.