WO2013069842A1

WO2013069842A1 - Computed tomography device

Info

Publication number: WO2013069842A1
Application number: PCT/KR2011/009158
Authority: WO
Inventors: 김경우; 김재희; 김규겸
Original assignee: 주식회사 나노포커스레이
Priority date: 2011-11-10
Filing date: 2011-11-29
Publication date: 2013-05-16
Also published as: KR101217212B1

Abstract

The present invention relates to a computed tomography device using x-rays, and comprises: a scan module (10) for performing computed tomography, which comprises an x-ray light source portion (12) for generating x-rays and an x-ray sensor portion (14) for receiving and transforming the x-rays that are generated from the x-ray light source portion into an electrical signal; a transport module (20), on which the scan module (10) is installed, for linearly shifting the scan module (10); a rotation module (30) for rotating the transport module (20); a case (40) to which the rotation module is fixed; and a stage module (50) for moving an object (90) to be inspected in between the x-ray light source portion (12)and the x-ray sensor portion (14), wherein the object (90) can be captured from a variety of angles and even can be captured from a discretionary position by adjusting magnifying power by rotating the x-ray light source portion (12) and the x-ray sensor portion (14) of the scan module to various angles while the object (90) is in place.

Description

Computed Tomography

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computed tomography apparatus, and more particularly, to a computed tomography apparatus capable of adjusting a magnification of an object and photographing from various angles.

Computed tomography (hereinafter referred to as CT) is a computerized image of the cross section of the human body that uses mathematical calculations to reconstruct the human tissue in detail and clarity, and to accurately distinguish between normal and lesion tissue. Technique. In such computed tomography, special detectors are used to measure X-rays passing through a subject. The information measured by the detector is sent to a computer and then reconstructed as an image of the original subject by a complex mathematical analysis technique.

The development of such CT is progressing in the direction of obtaining a high quality image in a shorter time while minimizing the radiation exposure to the patient. Therefore, it is not possible to unconditionally increase the radiation dose for the purpose of only good image quality, such as industrial CT or industrial radiation measuring equipment, and various techniques have been developed to obtain desired image information in a short time while reducing the burden on the patient.

On the other hand, looking at the basic measurement principle of the CT as described above, the X-ray tube is attached to the rotating portion of the gantry rotating at a constant speed, and the cone beam (cone beam) at a predetermined position at a predetermined interval is irradiated to the patient. Then, the absorption rate of the radiation appears differently according to the body part of the patient. By measuring the transmitted X-rays without being absorbed in this way, the distribution of the absorption rate for the body part at the position can be drawn.

An object of the present invention is to provide a computer tomography apparatus capable of adjusting the magnification of an object and photographing from various angles.

One aspect of the present invention is a computer tomography apparatus using X-rays, which receives the X-ray light source unit 12 and X-rays generated by the X-ray light source unit 12 for generating X-rays to convert into an electrical signal A scan module 10 including an X-ray sensor unit 14 to perform computed tomography; A transfer module 20 in which the scan module 10 is installed and linearly moves the scan module 10; A rotation module 30 for rotating the transfer module 20; A case 40 to which the rotation module 30 is fixed; Provided is a computer tomography apparatus including a stage module 50 for moving the inspection object 90 between the X-ray light source unit 12 and the X-ray sensor unit 14.

The scan module 10 further includes a scan body 16 in which the X-ray light source unit 12 and the X-ray sensor unit 14 are installed, and the transfer module 20 includes the scan body 16. It can be configured to linearly move.

In addition, the transfer module 20 may include an LM guide 22 for linearly transferring the scan body 16.

In addition, the rotary module 30 may include a rotary plate 32 to which the transfer module 20 is fixed and a rotary motor 34 to rotate the rotary plate 32.

In addition, the stage module 50 includes a fixed stage 52 fixed to the ground or the case 40; A moving stage 54 coupled to the fixed stage 52 and slidably moved toward the scan module 10; It may include a position adjusting unit 56 installed on the moving stage 54 to adjust the position of the inspection object (90).

In addition, the position adjusting unit 56, the height adjusting unit 57 for adjusting the height of the inspection object (90); It may include a rotating part 59 configured to rotate the object 90.

The computer tomography apparatus according to the present invention rotates the X-ray light source unit 12 and the X-ray sensor unit 14 of the scan module 10 at various angles while the object 90 is positioned to the object 90. Not only can shoot from a variety of angles, there is an effect that can be taken by adjusting the magnification at any position.

In addition, in the computed tomography apparatus according to the present invention, when the object 90 is installed on the moving stage 54 of the stage module 50, when it is necessary to photograph a plurality of objects at the same position, the same object is repeatedly replaced with only the object. The effect is that you can take a picture in succession and compare it.

1 is a perspective view of a computed tomography apparatus according to an embodiment of the present invention;

2 is a side view of FIG. 1

3 is a working example of the stage module shown in FIG.

4 is an operation example 1 of the scan module shown in FIG.

5 is an operation example 2 of the scan module shown in FIG.

6 is a perspective view of the stage module shown in FIG.

7 is a perspective view of the inspection stage shown in FIG.

8 is a side view of a computed tomography apparatus according to another embodiment of the present invention.

One aspect of the present invention is a computer tomography apparatus using X-rays, which receives the X-ray light source unit 12 and X-rays generated by the X-ray light source unit 12 for generating X-rays to convert into an electrical signal A scan module 10 including an X-ray sensor unit 14 to perform computed tomography; A transfer module 20 installed with the scan module 10 and linearly moving the scan module 10; A rotation module 30 for rotating the transfer module 20; A case 40 to which the rotation module 30 is fixed; Provided is a computer tomography apparatus including a stage module 50 for moving the inspection object 90 between the X-ray light source unit 12 and the X-ray sensor unit 14.

In addition, the stage module 50, the fixed stage 52 is fixed to the ground or the case 40; A moving stage 54 coupled to the fixed stage 52 and slidably moved toward the scan module 10; It may include a position adjusting unit 56 installed on the moving stage 54 to adjust the position of the inspection object (90).

1 is a perspective view of a computed tomography apparatus according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is an operation example of the stage module shown in FIG. 2, and FIG. 4 is shown in FIG. 1. 1 is an operation example of the illustrated scan module, FIG. 5 is an example of operation 2 of the scan module illustrated in FIG. 1, FIG. 6 is a perspective view of the stage module illustrated in FIG. 1, and FIG. 7 is illustrated in FIG. 6. A perspective view of the inspection stage.

As shown, the computed tomography apparatus according to the present embodiment is a scan module 10 for performing a computed tomography (hereinafter referred to as CT) by using X-ray, and the scan module 10 is installed And a transfer module 20 for linearly moving the scan module 10, a rotation module 30 for rotating the transfer module 20, and a stage module 50 for transferring an inspection object to the scan module 10. And a case 40 for supporting the stage module 50 and the rotation module 30.

The scan module 10 includes an X-ray light source unit 12 for generating X-rays, an X-ray sensor unit 14 for receiving X-rays generated by the X-ray light source unit 12 and converting them into electrical signals; The X-ray light source unit 12 is installed on one side and the scan body 16 provided with the X-ray sensor unit 14 on the other side.

The X-ray light source unit 12 is configured to generate X-rays in a general CT device, and is provided with an X-ray source, a collimator, and the like.

The X-ray sensor unit 14 is a configuration of a general CT device configured to receive an X-ray and convert it into an electrical signal. The X-ray sensor unit 14 converts the X-ray generated from the X-ray light source unit 12 into an electrical signal. After that, the electrical signal is converted into a video signal.

The scan body 16 is fixed to the X-ray light source unit 12 and the X-ray sensor unit 14, fixed to the transfer module 20 is linearly moved.

The X-ray light source unit 12 and the X-ray sensor unit 14 is a general configuration bar to those skilled in the art, detailed description thereof will be omitted.

The transfer module 20 is fixed to the rotation module 30 and configured to linearly move the scan body 16. In this embodiment, the rotation module (30) is fixed to the rotation module 30. And an LM guide 22 configured to be relatively moved in a straight line with respect to 30).

In this case, the LM guide 22 may be configured to be moved by a driving force of a driving motor (not shown), or may be configured to be manually moved by an operator. In this embodiment, the scan body 16 is linearly moved through a driving motor.

The LM guide 22 includes a first guide 23 fixed to the scan body 16 and a second guide 24 fixed to the rotation module 30.

The rotation module 30 is fixed to the case 40 to rotate the second guide 24, and includes a rotation plate 32 fixed to the second guide 24.

In this embodiment, the rotary plate 32 is configured to rotate by the rotary motor 34, the operator can arbitrarily adjust the rotation angle of the rotary plate 32 through an operation button (not shown).

The case 40 includes a vertical frame 42 to which the rotation module 30 is fixed, and a base frame 44 to which the vertical frame 42 is fixed and disposed on the ground.

The stage module 50 includes a fixed stage 52 fixed to the base frame 44, a moving stage 54 coupled to the fixed stage 52 and slidably moved toward the scan module 10, and And a positioning unit 56 installed on the moving stage 54 to adjust the position of the computed tomography object.

The fixed stage 52 is provided with a guide rail 51 for guiding the moving stage 54 toward the scan module 10 side.

The moving stage 54 is moved along the guide rail 51.

In this case, the movable stage 54 may be provided with an EL guide that is linearly moved by the applied power, or may be configured to be moved by the worker by hand.

The position adjusting unit 56 includes a height adjusting unit 57 for adjusting the height of the object 90, and a rotating unit 59 configured to rotate the object 90.

In the present embodiment, the rotating part 59 is fixed to the moving stage 54, and the height adjusting part 57 is installed in the rotating part 59. So, when the rotating unit 59 is rotated, the height adjusting unit 57 and the object 90 is rotated together, unlike the present embodiment even if the rotating unit 59 is installed in the height adjusting unit 57 It is a safe structure.

On the other hand, in this embodiment, the rotation module 30 is installed on the rear side of the transfer module 20 is configured to rotate the transfer module 20, but unlike the scan module 10 is the rotary module 30 Installed in the), the rotary module 30 may be configured to be installed in the transfer module 20.

Hereinafter, an operation process of the computed tomography apparatus according to the present embodiment will be described in more detail with reference to the accompanying drawings.

First, the operator can inspect the object 90 in two ways.

The first method is to position the object 90 on the moving stage 54 and then rotate the scan module 10 to inspect the object 90. The second method is to scan the object 10. It is a method of inspecting by rotating the object 90 installed in the rotating part 59 after moving the transfer stage 54 between the scan module 10 by rotating 90 ° in a horizontal state.

In the first method of performing the inspection by rotating the scan module 10, the object 90 is inspected with the position adjusting unit 56 shown in FIG. 7 removed, and the scan module 10 is moved up or down. After moving in the horizontal direction, the scan module 10 is rotated about the object 90 to inspect the object 90.

On the other hand, in the second method of rotating the object 90 to perform the inspection, the positioning unit 56 is disposed on the moving stage 54, and the scan module 10 is disposed at an appropriate position and angle for inspection. After the inspection, the object 90 is rotated through the rotation part 59 of the position adjusting unit 59.

On the other hand, as shown in Figure 4, by rotating the scan module 10 by using the rotation module 30, the operator can implement a variety of shooting angle in a fixed state of the object 90. .

In addition, as shown in FIG. 5, the distance to the object 90 is adjusted by linearly moving the scan module 10 through the transfer module 20 while rotating the scan module 10 by a predetermined angle. In this way, the magnification of the tomography can be adjusted. That is, the computer photographing apparatus according to the present embodiment rotates the X-ray light source unit 12 and the X-ray sensor unit 14 of the scan module 10 at various angles while the object 90 is positioned to the object ( 90) can be taken from a variety of angles as well as the effect that can be taken by adjusting the magnification at any position.

In addition, the object 90 is installed on the moving stage 54 of the stage module 50, when it is necessary to photograph a plurality of objects at the same position, while repeatedly replacing only the object can be photographed and compared the same portion continuously It has an effect.

8 is a side view of a computed tomography apparatus according to another exemplary embodiment of the present disclosure.

As shown, the scan module 10 according to the present embodiment is configured such that the X-ray light source unit 12 and the X-ray sensor unit 14 are independently moved with respect to the scan body 16.

That is, the X-ray light source unit 12 and the X-ray sensor unit 14 are configured to be linearly moved to the opposite side, the scan body for the relative movement of the X-ray light source unit 12 and X-ray sensor unit 14 Elm guides 12a and 14a for linear movement are arranged at 16, respectively.

The linear movement of the X-ray light source unit 12 and the X-ray sensor unit 14 enables not only to adjust magnification during tomography of the object, but also to further optimize the shooting position according to the shape of the object. have.

Hereinafter, the rest of the configuration is the same as the above embodiment and a detailed description thereof will be omitted.

Although the present invention has been described above with reference to the illustrated drawings, the present invention is not limited to the embodiments and drawings described herein, and is applied by those skilled in the art through various combinations within the scope of the technical idea of the present invention. This is possible.

Claims

In the computed tomography apparatus using X-rays,

Scan to perform computed tomography, including an X-ray light source unit 12 for generating X-rays and an X-ray sensor unit 14 for receiving X-rays generated by the X-ray light source 12 and converting them into electrical signals Module 10;

A transfer module 20 installed with the scan module 10 and linearly moving the scan module 10;

A rotation module 30 for rotating the transfer module 20;

A case 40 to which the rotation module 30 is fixed;

Computed tomography apparatus comprising a stage module (50) for moving the inspection object (90) between the X-ray light source unit (12) and the X-ray sensor unit (14).
The method according to claim 1,

The scan module 10 further includes a scan body 16 in which the X-ray light source unit 12 and the X-ray sensor unit 14 are installed, and the transfer module 20 includes the scan body 16. Computed tomography device configured to move linearly.
The method according to claim 2,

The transfer module (20) includes a computer guide tomography (22) to linearly transfer the scan body (16).
The method according to claim 1,

The rotating module 30 includes a rotating plate 32 to which the transfer module 20 is fixed and a rotating motor 34 to rotate the rotating plate 32.
The method according to claim 1,

The stage module 50 is

A fixed stage 52 fixed to the ground or the case 40;

A moving stage 54 coupled to the fixed stage 52 and slidably moved toward the scan module 10;

Computed tomography apparatus comprising a position adjusting unit (56) installed on the moving stage (54) to adjust the position of the inspection object (90).
The method according to claim 5,

The position adjusting unit 56

A height adjusting unit 57 for adjusting the height of the inspection object 90;

Computed tomography apparatus comprising a rotating portion (59) configured to rotate the object (90).