KR20220129974A - Digital Tomosynthesis System For Multi-Direction - Google Patents

Abstract

The present invention relates to a digital tomosynthesis system for multi-directional photographing through various positioning of an X-ray source and X-ray detector according to a subject and area to be photographed, which comprises: a stand which includes a gantry moving unit that slides in a longitudinal direction and which is installed on a ground or wall; a gantry arm in which a source moving unit and a detector moving unit sliding in the longitudinal direction are respectively formed on one end side and the other end side, and which rotates and moves with respect to the stand by a gantry arm ration unit formed at a center part and coupled to the gantry moving unit; a source arm which includes a source rotation unit having one end coupled to the source moving unit and rotating a source moving rail at the other end, and an X-ray source sliding along the source moving rail; and a detector arm which includes a detector rotation unit having one end coupled to the detector moving unit and rotating a detector moving rail at the other end, and an X-ray detector facing the X-ray source and sliding along the detector moving rail.

Description

Digital Tomosynthesis System For Multi-Direction

The present invention relates to a digital tomosynthesis system capable of multidirectional imaging, and more particularly, to a digital tomosynthesis system capable of multidirectional imaging through various positioning of an X-ray source and an X-ray detector according to an object and a region to be photographed.

In general, a digital tomosynthesis system (DTS, {Digital Tomosynthesis System) is a device for reconstructing an image in three dimensions using projected image data taken from multiple angles within a limited angle.

Such a digital tomosynthesis system includes an X-ray source (or an X-ray tube, 10) that irradiates X-rays to an object O, and an X-ray detector that detects X-rays irradiated from the X-ray source 10 and transmitted through the object O. (20).

More specifically, in a general digital tomosynthesis system, as shown in FIG. 1 , the X-ray source 10 and the X-ray detector 20 are installed to face each other so that the X-ray source 10 or the X-ray detector 20 is vertically or It can only move in one horizontal direction.

Accordingly, the conventional digital tomosynthesis system has a problem in that it is impossible to simultaneously implement a stand mode in which the photographing object O is advantageously photographed in a standing state and a table mode in which photographing in a lying state is advantageous.

In addition, as the conventional digital tomosynthesis system includes a plurality of X-ray sources 10 or X-ray detectors 20 to implement the stand mode and table mode as described above, installation cost increases and restrictions due to installation space are reduced. There are accompanying problems.

Republic of Korea Patent Publication No. 10-2017-0062789 (published on June 8, 2017)

It is an object of the present invention to provide a digital tomosynthesis system capable of multidirectional imaging through various positioning of an X-ray source and an X-ray detector.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention not mentioned may be understood by the following description, and will be more clearly understood by the embodiments of the present invention.

It will also be readily apparent that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the appended claims.

In order to solve the above problems, the digital tomosynthesis system capable of multidirectional imaging according to the present invention includes a stand installed on the ground or wall including a gantry movable part sliding in the longitudinal direction, a source movable part sliding in the longitudinal direction, and a detector The movable part is formed on one end side and the other end side, respectively, the gantry arm is formed in the central part and rotates with respect to the stand by a gantry arm rotating part coupled to the gantry movable part, one end is coupled to the source movable part and the other end is a source movable rail A source arm including a source movable part rotating a source movable part and an X-ray source sliding along the source movable rail, one end coupled to the detector movable part, and a detector rotary part rotating the detector movable rail at the other end and facing the X-ray source, the detector A detector arm including an X-ray detector sliding along the movable rail is provided.

More specifically, the source arm and the detector arm are respectively formed to be perpendicular to the longitudinal direction of the gantry arm.

In addition, the source movable part is slidable from one end of the gantry arm to the gantry arm rotating part, and the detector movable part is slidable from the other end of the gantry arm to the gantry arm rotating part. Multi-directional shooting is possible.

More preferably, the center of the source rotating part and the zoom core of the detector rotating part are formed to be located on the same straight line.

As described above, in the digital tomosynthesis system capable of multi-directional imaging according to the present invention, multi-directional continuous imaging is possible through various positioning of the X-ray source and the X-ray detector. .

In particular, the digital tomosynthesis system capable of multi-directional imaging according to the present invention can reduce installation costs as the table mode and the stand mode are implemented with one X-ray source and one X-ray detector, respectively, and can alleviate restrictions on installation space. can

In addition to the above-described effects, the specific effects of the present invention will be described together while describing specific details for carrying out the invention below.

1 is a block diagram illustrating a general digital tomosynthesis system.
2 is a perspective view illustrating a stand mode of a digital tomosynthesis system capable of multi-directional imaging according to an embodiment of the present invention.
3 is a perspective view illustrating a stand mode of a digital tomosynthesis system capable of multi-directional imaging according to an embodiment of the present invention.
4 is a perspective view illustrating a table mode of a digital tomosynthesis system capable of multidirectional imaging according to an embodiment of the present invention.
5 is a perspective view illustrating a table mode of a digital tomosynthesis system capable of multi-directional imaging according to an embodiment of the present invention.

The above-described objects, features and advantages will be described below in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention.

In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

In the following, that an arbitrary component is disposed on the "upper (or lower)" of a component or "top (or below)" of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when it is described that a component is "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components are "connected" between each component. It should be understood that each component may be “interposed” or “connected”, “coupled” or “connected” through another component.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

Throughout the specification, when referring to “A and/or B”, it means A, B or A and B, unless specifically stated to the contrary, and when referring to “C to D”, it is Unless otherwise specified, it means that it is greater than or equal to C and less than or equal to D.

Hereinafter, a digital tomosynthesis system capable of multi-directional imaging according to some embodiments of the present invention will be described.

2 and 3 are perspective views illustrating a stand mode of a digital tomosynthesis system capable of multi-directional imaging, respectively, according to an embodiment of the present invention.

Also, FIGS. 4 and 5 are perspective views illustrating a table mode of a digital tomosynthesis system capable of multi-directional imaging according to an embodiment of the present invention, respectively.

2 to 5 , the digital tomosynthesis system capable of performing multidirectional imaging according to the present invention includes a stand 100 , a gantry arm 200 , a source arm 300 , and a detector arm 400 .

More specifically, the stand 100 is installed on the ground or wall surface as a polygonal pole including a square cross-section.

In addition, the stand 100 includes a gantry arm movable part 110 having a rail formed in the longitudinal direction and sliding along the rail.

In this case, the gantry arm movable unit 110 may automatically move along the rail including a linear motor, and may also be manually moved.

In addition, the gantry arm movable unit 110 may further include a fixing means for preventing the movement when the sliding movement to the desired position by the user is completed.

In addition, the stent 100 may be formed to be movable on the ground by being provided with a wheel for movement at the lower side.

On the other hand, the gantry arm 200 is a polygonal frame including a quadrangle in cross section, the rail is formed in the longitudinal direction, the gantry arm rotating part 210 formed in the central part, the source movable part 220 formed at one end, and the other end side. and a detector movable part 230 formed therein.

More specifically, the gantry arm rotating part 210 is fastened to the gantry arm movable part 110 to rotate the gantry arm 200 with respect to the stand 100 .

In addition, the gantry arm rotating unit 210 may automatically rotate the gantry arm 200 by a driving motor or the like, and may also be manually rotated.

In addition, the gantry arm rotating unit 210 may further include a fixing means for preventing flow when the rotational movement of the gantry arm 200 is completed to a position desired by the user.

In addition, the source movable part 220 slides along the rail formed in the longitudinal direction of the gantry arm 200 as described above.

More preferably, the source movable part 220 can slide from one end of the gantry arm 200 to the gantry arm rotating part 210 .

In addition, the source movable unit 220 may automatically slide in the longitudinal direction of the gantry arm 200 by a driving motor or the like, and may also be manually moved.

In addition, the source movable unit 220 may further include a fixing means for preventing the flow when the sliding movement to the desired position by the user is completed.

In addition, the detector movable part 230 slides along the rail formed in the longitudinal direction of the gantry arm 200 as described above.

More preferably, the detector movable part 230 can slide from the other end of the gantry arm 200 to the gantry arm rotation part 210 .

In addition, the detector movable part 230 can automatically slide in the longitudinal direction of the gantry arm 200 by a driving motor, and a manual movement operation is also possible.

In addition, the detector movable part 230 may further include a fixing means for preventing the movement when the sliding movement to the desired position by the user is completed.

In addition, the gantry arm 200 may have a scale displayed on the surface so that it can be checked how much each of the source movable part 220 and the detector movable part 230 has moved from the rotation axis of the gantry arm rotation part 210. .

Meanwhile, the source arm 300 includes a source rotating part 310 having one end fastened to the source movable part 220 and formed at the other end so as to be orthogonal to the stent 100 .

For example, when the stand 100 is vertically formed on the ground, the source arm 300 is formed horizontally with the ground.

In addition, when the stand 100 is formed perpendicular to the wall, the source arm 300 is formed perpendicular to the ground.

In addition, the source rotating unit 310 includes a source movable rail 311 coupled to rotate with respect to the source rotating unit 311 .

More specifically, the source movable rail 311 is a frame in which the rail is formed in the longitudinal direction, and the central part is fastened to the source rotating part 310 to rotate.

In this case, the source rotating unit 310 may automatically rotate and move the source movable rail 311 with respect to the source arm 300 by a driving motor or the like, and may also manually rotate and move.

In addition, the source rotating unit 310 may further include a fixing means for preventing the flow when the rotational movement of the source movable rail 311 is completed to a position desired by the user.

In addition, the source arm 300 includes an X-ray source 320 sliding along the source movable rail 311 .

The X-ray source 320 is also called an X-ray tube and is a means for irradiating X-rays to an object to be photographed.

On the other hand, the detector arm 400 includes a detector rotating part 410 that has one end fastened to the detector movable part 230 and rotates the detector movable rail 411 at the other end so as to be orthogonal to the stent 100 .

For example, when the stand 100 is formed vertically on the ground, the detector arm 400 is formed horizontally with the ground.

In addition, when the stand 100 is formed perpendicular to the wall surface, the detector arm 400 is formed perpendicular to the ground.

In addition, the detector arm 400 includes an X-ray detector 420 having a detector rail groove 421 into which the detector movable rail 411 is inserted and sliding along the detector movable rail 411 . .

Here, the rear surface refers to the rear surface of the surface on which the X-ray detector 420 detects the X-rays irradiated from the X-ray source 320 .

More preferably, the detector rotating part 410 may automatically rotate and move the detector movable rail 411 with respect to the detector arm 400 by a driving motor or the like, and a manual rotational movement operation is also possible.

In addition, the detector movable rail 411 may further include a fixing means for preventing the movement when the rotational movement of the X-ray detector 420 to a position desired by the user is completed.

In addition, the X-ray detector 420 is a means for detecting X-rays irradiated from the X-ray source 320 and transmitted through the object to be photographed.

Accordingly, the X-ray detector 420 is formed such that a surface for detecting X-rays faces the X-ray source 320 .

In addition, when the X-ray source 320 moves along the source movable rail 311 , the X-ray detector 420 preferably moves along the detector movable rail 411 to correspond thereto.

Accordingly, the X-ray detector 420 can be applied to a relatively inexpensive product having a detection effective area of 17 inches x 24 inches or less, thereby further reducing manufacturing costs.

In addition, the X-ray detector 420 may be a square product.

Meanwhile, the stand mode of the digital tomosynthesis system capable of multidirectional imaging according to the present invention configured as described above will be described below.

As shown in FIGS. 2 and 3 , the gantry arm 200 is rotated to be perpendicular to the stent 100 by the gantry arm rotating part 210 .

That is, the stand 100 and the gantry arm 200 are orthogonal to each other to form a “+” shape.

In addition, the source arm 300 and the detector arm 400 are respectively formed to be parallel to the ground.

In this case, the height of the source arm 300 and the detector arm 400 from the ground may be adjusted by sliding movement of the gantry arm movable part 110 .

In addition, a source-to-image distance (SID) between the X-ray source 320 and the X-ray detector 420 can be adjusted by sliding each of the source movable unit 220 and the detector movable unit 230 . have.

Meanwhile, as shown in FIG. 2 , when the positioning of the gantry arm 200 , the source arm 300 , and the detector arm 400 is completed, the inspection object is positioned between the X-ray source 320 and the X-ray detector 420 . do.

In this case, it is preferable that the inspection object is positioned adjacent to the X-ray detector 420 in a line state.

Thereafter, the X-ray source 320 irradiates X-rays toward the X-ray detector 420 while sliding left and right along the source movable rail 311 to photograph the inspection object.

At this time, the X-ray detector 420 also slides along the detector movable rail 411 in response to the sliding movement of the X-ray source 320 to detect X-rays irradiated from the X-ray source 320 and transmitted through the object. .

Meanwhile, the table mode of the digital tomosynthesis system capable of multidirectional imaging according to the present invention configured as described above will be described below.

As shown in FIGS. 4 and 5 , the gantry arm 200 rotates so as to be in a straight line with the stent 100 by the gantry arm rotating part 210 .

In addition, the source arm 300 and the detector arm 400 are parallel to the ground, respectively, and the source arm 300 is located on the upper side, and the detector arm 400 is located on the lower side.

In this case, the height of the source arm 300 and the detector arm 400 from the ground may be adjusted by sliding movement of the gantry arm movable part 110 .

In addition, a source-to-image distance (SID) between the X-ray source 320 and the X-ray detector 420 can be adjusted by sliding each of the source movable unit 220 and the detector movable unit 230 . have.

Meanwhile, as shown in FIG. 4 , when the positioning of the gantry arm 200 , the source arm 300 , and the detector arm 400 is completed, the inspection object is positioned between the X-ray source 320 and the X-ray detector 420 . do.

That is, it is positioned adjacent to the X-ray detector 420 in a state in which an object to be examined lies on a table or a bed installed between the X-ray source 320 and the X-ray detector 420 .

Thereafter, the X-ray source 320 irradiates X-rays toward the X-ray detector 420 while sliding left and right along the source movable rail 311 to photograph the inspection object.

At this time, the X-ray detector 420 also slides along the detector movable rail 411 in response to the sliding movement of the X-ray source 320 to detect X-rays irradiated from the X-ray source 320 and passing through the object. .

In addition, the digital tomosynthesis system capable of multi-directional imaging according to the present invention is capable of shooting positions inclined at a certain angle from the ground as well as in the stand mode or table mode as described above, if necessary.

As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings disclosed in the present specification. It is obvious that variations can be made.

In addition, although the effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the configuration should also be recognized.

100. Stand
110. Gantry arm moving part
200. Gantry Arm
210. Gantry arm rotating part
220. Source moving part
230. Detector moving part
300. Source Arm
310. Sauce Rotator
311. Source movable rail
320. X-ray source
400. Detector Arm
410. Detector Rotation
411. Detector movable rail
420. X-ray detector
421. Detector Rail Groove

Claims (4)

a stand installed on the ground or wall including a gantry movable part sliding in the longitudinal direction;
a gantry arm having a source movable part and a detector movable part slidingly moved in the longitudinal direction formed on one end side and the other end side, respectively, and rotated with respect to the stand by a gantry arm rotating part formed in the central part and coupled to the gantry movable part;
a source arm having one end coupled to the source movable part and the other end including a source rotating part rotating the source movable rail and an X-ray source sliding along the source movable rail; and
A detector arm having one end coupled to the detector movable part and the other end including a detector rotating part rotating the detector movable rail and an X-ray detector facing the X-ray source and sliding along the detector movable rail; Digital tomosynthesis system.
The method of claim 1,
The source arm and the detector arm are each formed to be perpendicular to a longitudinal direction of the gantry arm, and a digital tomosynthesis system capable of photographing in multiple directions.
The method of claim 1,
The source movable part is slidable from one end of the gantry arm to the gantry arm rotating part,
A digital tomosynthesis system capable of multi-directional imaging in which the detector movable part is slidable from the other end of the gantry arm to the gantry arm rotating part.
The method of claim 1,
A digital tomosynthesis system capable of multi-directional imaging in which the center of the source rotating unit and the detector rotating unit are positioned on the same straight line.

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