WO2024106762A1

WO2024106762A1 - Radiographic imaging device

Info

Publication number: WO2024106762A1
Application number: PCT/KR2023/015879
Authority: WO
Inventors: 최진욱; 이인재; 이강훈; 이두용; 정윤수; 이행화; 이정도; 강산; 이윤지
Original assignee: 주식회사 덴티움
Priority date: 2022-11-15
Filing date: 2023-10-13
Publication date: 2024-05-23
Also published as: KR20240070912A

Abstract

The present invention provides a radiographic imaging device comprising: a support module; a gantry module installed on the support module to be able to move vertically and horizontally; a radiation module rotatably installed on the gantry module, the radiation module comprising a source unit configured to irradiate a target, and a detection unit configured to detect radiation that has passed through the target, thereby acquiring radiation data; a control module configured to reconfigure the radiation data acquired by the detection unit, thereby generating an image of the target; and a driving module configured to rotate the radiation module under the control of the control module and to move the gantry module vertically and horizontally.

Description

radiation imaging device

The present invention relates to a radiation imaging device used to obtain a radiation image of an object.

In general, an X-ray imaging device radiates X-rays to an object and analyzes the X-rays that pass through the object to determine the internal structure of the object. Since the penetrability of X-rays varies depending on the tissues that make up the object, the internal structure of the object can be imaged using the attenuation coefficient that quantifies this.

X-ray imaging devices can be divided into simple X-ray imaging devices that transmit X-rays from one direction and CT (Computed Tomography) devices that transmit X-rays from multiple directions and reconstruct images with a computer.

After the distance to the object is set, the X-ray imaging device cannot change the distance. Therefore, it was difficult to photograph an object with a wider area than the standard object at once.

One object of the present invention is to provide a radiation imaging device that can perform CT imaging of an object while also imaging a large part of the object at once.

A radiation imaging device according to one aspect of the present invention for realizing the above-described problem includes a support module; A gantry module installed on the support module to enable vertical and horizontal movement; a radiation module including a source unit configured to irradiate radiation to an object and a detection unit configured to acquire radiation data by detecting radiation transmitted through the object, and rotatably installed on the gantry module; a control module configured to generate an image of an object by reconstructing the radiation data obtained from the detection unit; and a driving module configured to rotate the radiation module and vertically and horizontally move the gantry module under the control of the control module.

Here, a detection module for detecting an object is further included, and the control module may control the driving module so that the gantry module moves horizontally to adjust the distance to the object based on the detection result of the detection module. .

Here, the control module may control the driving module to rotate and move the source unit to be positioned corresponding to the object, based on the detection result of the detection module.

Here, the driving module includes a vertical driving unit formed to move up and down along the support module; and a horizontal driving unit that connects the vertical driving unit and the gantry module and drives the gantry module in a horizontal direction from the vertical driving unit.

Here, the support module includes a base; a pair of posts disposed along a vertical direction on the base; and a handle connecting the pair of posts, and the gantry module may be disposed between the pair of posts.

Here, the driving module may include a handle driving unit installed on the post and lifting and driving the handle.

Here, the handle driving unit includes a loop-shaped cover band to which the handle is connected and disposed along the height direction of the post; and a pair of rollers installed on the post to be spaced apart along the height direction and rotatably supporting the cover band, wherein the cover band may be arranged to form a part of the outer surface of the post.

Here, the gantry module includes a donut-shaped housing, and the support module may further include a footrest detachably mounted on the base so as to be disposed in a hollow portion of the housing.

Here, the support module may further include a chair detachably disposed on the base.

According to the radiation imaging device according to the present invention configured as described above, the gantry module on which the radiation module is rotatably installed can not only move vertically but also move horizontally by the drive module to adjust the distance to the object, thereby performing CT on the object. In addition to taking pictures, you can now take pictures of a wide area of the object at once.

1 is a perspective view of a radiation imaging device according to an embodiment of the present invention.

FIG. 2 is a block diagram of the radiation imaging device of FIG. 1.

FIG. 3 is a conceptual cross-sectional view showing the gantry module and radiation module of FIG. 1.

Figure 4 is a cross-sectional view showing the gantry module of Figure 3 in a horizontally moved state.

Figure 5 is a perspective view showing a configuration in which a chair is applied to the support module of Figure 1.

Hereinafter, a radiation imaging device according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. In this specification, the same or similar reference numbers are assigned to the same or similar components even in different embodiments, and the description is replaced with the first description.

Referring to this drawing, the radiation imaging apparatus 100 may include a support module 110, a gantry module 120, and a driving module 150.

The support module 110 is a basic structure on which the gantry module 120 and the like are installed. The support module 110 may specifically include a base 111, a post 113, and a handle 115.

The base 111 may be a plate generally parallel to the floor. The base 111 may be formed to extend long to the left and right in the drawing. A footrest 112 may be detachably installed on the base 111. The footrest 112 can be used when photographing short children, etc.

The post 113 is installed on the base 111 along the height direction. One end of the post 113 is supported on the base 111, and the other end is directed toward the air. The posts 113 may be provided in pairs and placed one at a time on both edges of the base 111.

The handle 115 is arranged to connect a pair of posts 113. The handle 115 may be an object, for example, an object that a person holds with his hand or places his arm on. The handle 115 also connects the pair of posts 113, enhancing their structural stability.

The gantry module 120 is the object on which the radiation module 130 (see FIG. 2), which will be described later, is mounted. The gantry module 120 has a donut-shaped housing 121. An object may be located in the hollow portion 125 of the housing 121. If the scaffold 112 is provided, the scaffold 112 may also be located in the hollow portion 125. The gantry module 120 is disposed between a pair of posts 113.

The driving module 150 is configured to drive the gantry module 120, the radiation module 130, and the handle 115. By operating the driving module 150, the gantry module 120 can move vertically or horizontally. By operating the driving module 150, the radiation module 130 can rotate.

According to this configuration, the radiation module 130 can acquire radiation data about the person while the target person is standing in the hollow part 125 of the gantry module 120. In the process, since gravity acts on a person, data reflecting the deformation due to body weight on joints (knees, waist, etc.) can be obtained.

During the radiography process, the gantry module 120 may move vertically or horizontally by the operation of the driving module 150, and the radiation module 130 may also move rotationally. As the gantry module 120 moves vertically and the radiation module 130 moves rotationally, the radiation imaging apparatus 100 can perform CT imaging.

As the gantry module 120 moves horizontally, the radiation module 130 (specifically, its source unit 131, see FIG. 2) can move closer to or farther away from the subject area of the subject. Thereby, the radiation data may be data enlarged from a specific part of a person.

Additional configurations of the radiation imaging apparatus 100 will be described with reference to FIG. 2 . FIG. 2 is a block diagram of the radiation imaging device of FIG. 1.

With further reference to this drawing, the radiation imaging device 100 may further include a radiation module 130, a control module 140, a detection module 160, and a display module 170.

The radiation module 130 is configured to acquire radiation data about an object by irradiating radiation. This may specifically include a source unit 131 and a detection unit 135.

The source unit 131 is configured to generate radiation and irradiate it to an object. Radiation refers to a collection of energy in the form of particles or electromagnetic waves emitted when unstable radionuclides are converted into stable nuclides. The source unit 131 may have, for example, an X-ray tube. When high voltage is applied to the anode and cathode of an X-ray tube, hot electrons are accelerated and collide with the target material of the anode, thereby generating X-rays.

The detection unit 135 is configured to acquire radiation data by detecting radiation that has passed through the object. The source unit 131 and the detection unit 135 may be arranged to correspond to each other based on the center of the housing 121. These 131 and 135 may also be configured to be rotatably movable together or individually within the housing 121 .

The control module 140 controls the radiation module 130, the driving module 150, the detection module 160, and the display module 170. For example, the control module 140 may reconstruct the radiation data acquired by the detection unit 135 to generate an image of the object. The control module 140 may also control the operation of the driving module 150 based on the detection result of the detection module 160.

The driving module 150 is configured to drive the gantry module 120 and the like. The driving module 150 may specifically include a gantry driving unit 151, a radiation module driving unit 153, and a handle driving unit 155.

The gantry driving unit 151 is a component that drives the gantry module 120 for vertical and horizontal movement of the gantry module 120. A vertical driving unit (not shown) for vertical movement of the gantry module 120 may be installed inside the post 113. The vertical driving unit may have a portion that moves up and down along the post 113. Elevation of the corresponding part can be achieved by a linear motion mechanism such as a ball screw or linear guide. To horizontally move the gantry module 120, a horizontal driving unit 152 (FIG. 1) connecting the vertical driving unit and the gantry module 120 may be provided. The horizontal drive unit 152 is also a linear motion mechanism and may include, for example, a cylinder. The gantry module 120 is connected to the moving part of the cylinder, and the gantry module 120 can move in the horizontal direction according to the operation of the cylinder.

The radiation module driving unit 153 is configured to drive the radiation module 130 to rotate within the gantry module 120. The radiation module driving unit 153 may include a donut-shaped plate on which the radiation module 130 is mounted and a rail (not shown) that moves the radiation module 130 along a circular trajectory. The plate may form part of the outer surface of the gantry module 120.

The handle driving unit 155 is configured to drive the handle 115 up and down along the vertical direction. The handle driving unit 155 may be installed on the post 113. The handle driving unit 155 may specifically include a cover band 157 (FIG. 1) and a pair of rollers (not shown). The cover band 157 is arranged along the height direction of the post 113 and may be arranged to form a part of the outer surface of the post 113. The cover band 157 has a loop shape, and the surface exposed to the outside can be connected to the handle 115. The rollers are installed spaced apart along the height direction within the post 113 and can rotatably support the cover band 157. The cover band 157 rotates along a loop-shaped trajectory while being supported by a pair of rollers as the handle 115 rises and falls. By using this cover band 157, it is possible to structurally prevent safety accidents such as the user's hand being caught in the passage through which the handle 115 is raised and lowered.

The detection module 160 is configured to detect an object. The detection module 160 can detect the presence of an object and the distance to the object. The sensing module 160 may be located on a surface defining the hollow portion 125 in the housing 121 or close to the corresponding surface.

The display module 170 is configured to display an image of an object under the control of the control module 140.

With the above configuration, a method of horizontally moving the gantry module 120 will be described with reference to FIGS. 3 and 4. FIG. 3 is a conceptual cross-sectional view showing the gantry module and the radiation module of FIG. 1, and FIG. 4 is a cross-sectional view showing the gantry module of FIG. 3 in a horizontally moved state.

Referring further to these drawings, when the object O is located in the hollow part 125 of the gantry module 120, the source unit 131 and the detection unit 135 are located on opposite sides with respect to the object O. It is located in

The radiation irradiated from the source unit 131 passes through the object O and is detected by the detection unit 135. The radiation data D acquired by the detection unit 135 is processed by the control module 140.

Based on the result of the detection module 160 detecting the object O, the control module 140 rotates and moves the radiation module 130 so that the source unit 131 corresponds to the part of the object O that is to be enlarged and photographed. You can do it. The rotational movement is achieved by the control module 140 controlling the operation of the radiation module driving unit 153.

The control module 140 may also control the gantry module 120 to move horizontally along the lateral movement direction S based on the distance information to the object O' obtained from the detection module 160. The horizontal movement is achieved by the control module 140 controlling the operation of the horizontal driving unit 152 of the gantry driving unit 151.

By horizontal movement of the gantry module 120, the source unit 131 can retreat from the object O' and photograph a wide portion of the object O'. If radiography is performed in that state, the detection unit 135 can obtain radiation data D'. Here, the object O' is a wide part of the body of the person being photographed, and may be, for example, the shoulder area. In contrast, the previous object O may be the leg of the person being photographed.

When attempting to move the gantry module 120 vertically, the control module 140 also controls the gantry module 120 in the lateral movement direction (S) so that the center of the gantry module 120 coincides with the center of the object (O). It can be moved horizontally in the opposite direction.

Figure 5 is a perspective view showing the configuration of a chair applied to the support module of Figure 1.

Referring to this drawing, the support module 110 may further include a chair 117. The chair 117 may be detachably disposed on the base 111.

The chair 117 helps photograph the shoulder joint while a person is sitting. Since the gantry module 120 can only rise to the level of the lumbar spine when a person is standing, it is useful to provide a chair 117 for shoulder imaging.

The above-described radiation imaging device is not limited to the configuration and operating method of the embodiments described above. The above embodiments may be configured so that various modifications can be made by selectively combining all or part of each embodiment.

The present invention has industrial applicability in the field of manufacturing radiation imaging devices.

Claims

support module;

A gantry module installed on the support module to enable vertical and horizontal movement;

a radiation module including a source unit configured to irradiate radiation to an object and a detection unit configured to acquire radiation data by detecting radiation transmitted through the object, and rotatably installed on the gantry module;

a control module configured to generate an image of an object by reconstructing the radiation data obtained from the detection unit; and

A radiation imaging device comprising a driving module configured to rotate the radiation module and vertically and horizontally move the gantry module under the control of the control module.
According to paragraph 1,

Further comprising a detection module for detecting an object,

The control module is,

A radiation imaging device that controls the driving module to move the gantry module horizontally to adjust the distance to the object, based on the detection result of the sensing module.
According to paragraph 2,

The control module is,

A radiation imaging device that controls the drive module to rotate the source unit to position it corresponding to the object, based on the detection result of the detection module.
According to paragraph 1,

The driving module is,

a vertical driving unit configured to ascend and descend along the support module; and

A radiation imaging device comprising a horizontal driving unit that connects the vertical driving unit and the gantry module and drives the gantry module in a horizontal direction from the vertical driving unit.
According to paragraph 1,

The support module is,

Base;

a pair of posts disposed along a vertical direction on the base; and

Includes a handle connecting the pair of posts,

The gantry module is,

A radiation imaging device disposed between the pair of posts.
According to clause 5,

The driving module is,

A radiation imaging device installed on the post and including a handle driving unit that lifts and drives the handle.
According to clause 6,

The handle driving unit,

a loop-shaped cover band to which the handle is connected and disposed along the height direction of the post; and

A pair of rollers installed on the post to be spaced apart along the height direction and rotatably supporting the cover band,

The cover band is,

A radiological imaging device disposed to form part of the outer surface of the post.
According to clause 5,

The gantry module is,

Includes a donut-shaped housing,

The support module is,

A radiological imaging device further comprising a footrest detachably mounted on the base so as to be disposed in a hollow portion of the housing.
According to clause 5,

The support module is,

A radiological imaging device further comprising a chair detachably disposed on the base.