KR102168714B1 - X-ray equipment for radiography, fluoroscopy, linear tomosynthesis and conebeam CT - Google Patents

Abstract

According to the present invention, a composite X-ray imaging device for medical diagnosis comprises: a table part (100) having a structure capable of moving while a subject is being placed thereon; a base part (200) capable of guiding the subject to an imaging position while being coupled to the table part (100) and easily rotating the table part (100) according to an imaging mode; and a rotating arm part (300) rotatably coupled to the base part (200) and obtaining medical images of the subject on the table part (100) through an X-ray generation part and a receiving part.

Description

A complex X-ray imaging device capable of RAD, FLO, LT and CBCT imaging {X-ray equipment for radiography, fluoroscopy, linear tomosynthesis and conebeam CT}

The present invention relates to a complex X-ray imaging device for medical diagnosis, and more particularly, by enabling RAD, FLO, LT, and CBCT imaging using X-rays to be implemented as a single system, it is possible to save space and cost in a diagnostic medical field. It's about the room.

In recent years, thanks to the development of science and medical technology, the field of diagnostic equipment using X-rays has grown rapidly, and diagnostic X-ray imaging devices are widely distributed to general hospitals and clinics, allowing doctors to accurately photograph abnormal areas of the patient to be treated for efficient treatment. Is making a great contribution to

Typically, only 2D RAD images can be secured with X-ray imaging equipment supplied to primary hospitals and clinics, whereas FLO or CT scans are frequently possible depending on the type of lesion or the precision of diagnosis. For this, separate equipment such as a separate C-arm or CT imaging equipment is required.

Since the above-described devices differ from each other in irradiation angle, photographing frequency, method, and conditions of X-rays, there is a burden of separately providing each of the devices, although they all use X-rays in common. For this reason, in the case of C-arm or CT, which is relatively infrequent in use, it is often used in secondary and tertiary hospitals rather than primary hospitals and clinics.

In a typical X-ray imaging equipment, a table on which an object is located is integrally combined with a body on which an X-ray receiving and transmitting device is located, so that a user directly places an object for diagnosis on the table and then places it inside the irradiation area to perform photographing.

Korean Patent Publication No. 10-0888928 "Fixed table guide device for X-ray photography" (2009.03.16.) Republic of Korea Patent Publication No. 10-1611682 "X-ray imaging apparatus capable of photographing in various photographing modes" (2016.04.15.)

An object of the present invention is to improve space and cost savings in the diagnostic medical field by enabling RAD, FLO, LT, and CBCT imaging using X-rays to be implemented as a single system in order to solve the above problems. It is characterized in that it reduces the time, effort of patients and medical staff.

In addition, in the present invention, the table and the base unit to which transport devices such as casters are applied not only facilitate the installation and movement of the entire system, but also the table that is easily separated from the base also serves as a stretcher to independently transport subjects. By doing so, it is possible to prepare smooth shooting for a heavy or difficult subject.

The present invention is structurally simpler and faster than a conventional gantry tunnel type CT imaging device by placing a cone beam type X-ray receiving and transmitting device that photographs an area rather than a line at both ends of the rotating arm. It characterized in that it provides a complex X-ray medical image diagnosis apparatus.

The present invention allows the operator to selectively perform a total of four photographs (RAD, FLO, LT, CBCT) through the same diagnostic device according to the type of lesion and disease, thereby obtaining a spatial advantage and reducing the operator's effort. Of course, it is to provide a complex X-ray equipment that provides various advantages, such as reducing the time and risk of medical accidents compared to the case of moving to a plurality of conventional devices and performing photographing.

In addition, in terms of the operation of the equipment, it is possible to conveniently move and fix the table provided detachably from the main body to a location desired by the user to facilitate positioning of the subject. For the purpose of, the user's convenience is increased by making it possible to easily fix the X-ray irradiation area, that is, to the main body (corresponding to the base unit in the corresponding device) for convenient photographing.

In addition, diagnosis accuracy by allowing the user to easily change the direction of the table in the desired direction according to the rotation angle of the X-ray receiving and transmitting device required for each of the four imaging modes, the distance between the subject and each device, and the characteristics of the subject and lesion. The purpose is not only to improve the efficiency, but also to enable efficient arrangement of equipment according to the installation environment of the equipment.

A composite X-ray imaging apparatus for medical diagnosis according to the present invention for achieving the above object includes: a table unit 100 having a structure that is movable while a subject is located; A base part 200 that enables guidance to a photographing position of the subject in a state coupled with the table part 100 and enables easy rotation of the table part 100 in accordance with a photographing mode. ); And a rotating arm part 300 rotatably coupled to the base part 200 and configured to obtain a medical image of the subject on the table part 100 through an X-ray generating part and a receiving part. do.

The table unit 100 may include a curved table top plate 110 that effectively maintains strength through a cantilever structure and helps to move a subject to a central position of the table unit 100; A table moving body 120 having a plurality of casters 122 for facilitating movement to the subject position for loading the subject; A docking latch 130 that enables the table to rotate in an appropriate direction after moving the loaded subject to the X-ray irradiation area of the corresponding imaging equipment; A positioning pin 140 for reliably fixing at a predetermined shooting angle; A plurality of electric actuators 150 for facilitating movement to an accurate photographing position by adjusting a height and a longitudinal position of the loaded subject; And an arc-shaped handle 160 positioned at the rear end of the table top plate 110 to facilitate the transfer and rotation of the table portion 100.

The base part 200 may include a base plate 210 detachably coupled to the table part 100; A plurality of foot masters 220 capable of moving and fixing the base plate 210 while being disposed on the lower end of the base plate 210; A shock absorber unit 230 that is disposed on one side of the base plate 210 and functions to reduce an impact when the table unit 100 rotates; A rotation shaft 240 that facilitates docking of the table portion 100 in the irradiation area and rotation to a desired position; A positioning unit 250 having a plurality of slits 252 coupled to the docking latch 130 of the table unit 100; A plurality of sensors 280 for sensing the position and direction of the table to control the arm rotation motion for each mode; A control box 260 in which various electric parts for controlling the rotation of the rotary arm part 300 are located; Includes; a column 270 supporting the rotary arm portion 300.

The rotary arm part 300 includes a motor 310 coupled to an upper part of the column 270 and rotating about an axis; A hollow arm 320 that is coupled with the rotation shaft of the motor 310 to transport various cables therein; An X-ray generator 330 and a collimator 340 disposed on the upper side of the arm 320; And a detector 350 disposed below the arm 320.

According to the present invention, all the objects of the present invention described above can be achieved.

The composite X-ray imaging apparatus for medical diagnosis according to the present invention can selectively apply an optimal imaging method by varying the imaging mode according to the type of image to be acquired, thereby significantly reducing the time and labor required for imaging to the subject and user. It is possible to alleviate it.

In addition, four shooting modes are possible through one system, so that the cost for using multiple devices and the management cost consumed by maintenance can be reduced, and the space required for installation is relatively small. There is this.

In addition, the table, which can be separated and used independently, not only facilitates the location of the subject, which is the original purpose, but can also be used in a variety of other uses such as stretchers and beds.

In addition, by allowing the user to easily rotate the table according to each shooting mode, the utilization of the device is increased, and accidents caused by malfunction of the arm are prevented by adopting a sensor and a positioning pin structure to prevent shooting from an unintended position. Can be prevented.

1 shows a configuration of a composite X-ray imaging apparatus for medical diagnosis according to an embodiment of the present invention.
2 is a view showing a table part constituting a composite X-ray imaging apparatus for medical diagnosis.
3 is a view showing a base part of a composite X-ray imaging device for medical diagnosis.
4 is a view showing a rotating arm that forms a composite X-ray imaging device for medical diagnosis.
5 and 6 show a docking structure between the table part and the base part of the composite X-ray imaging apparatus for medical diagnosis.
7 and 8 show a process of enabling a stable fixation on a changed position of the table portion through a positioning pin module forming the table portion and a positioning portion forming the base portion.
9 shows a process of changing and fixing the position of the table part.

Hereinafter, the configuration and operation of the embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, the composite X-ray imaging apparatus for medical diagnosis according to the present invention includes a table unit 100 having a structure that is freely movable while a patient as a subject is positioned, and in a state rotatably coupled to the table unit 100. A base part 200 that enables guidance of a subject to various photographing positions and enables easy rotation of the table part 100 according to a photographing mode; And a rotating arm part 300 rotatably coupled to the base part 200 and configured to obtain a medical image of a subject on the table part 100 through an X-ray generator and a receiving part.

Referring to FIG. 2, the table portion 100 is a curved-shaped table that effectively maintains strength through a cantilever structure having a panel shape formed elongated along one direction while helping to move a subject to a central position of the table portion 100. The table moving body 120 having a plurality of casters 122 in a state spaced apart from the upper plate 110 and the lower side of the table top plate 110, and moving the loaded subject to the X-ray irradiation area of the composite X-ray imaging device in an appropriate direction. A latch 130 for docking that enables rotation of the table, and a positioning pin module 140 that helps reliable fixation of the table part 100 rotated on the base part 200 on a changed position. , In a state disposed between the table top plate 110 and the table moving body 120, by adjusting the height and the position along the length direction of the table top plate 110 based on the table moving body 120 It includes a plurality of electric actuator modules 150 to facilitate movement of the furnace and an arc-shaped handle 160 located at the rear end of the table top plate 110 to facilitate the transfer and rotation of the table unit 100.

The table top plate 110 has a shape in which a central portion is concavely cut along a length direction. That is, when a patient, who is a user, lies down or lies down for image capture, it has a shape that prevents a fall from the table top plate 110 and induces a natural position setting at the center portion.

Referring to FIGS. 5 and 6, the table moving body 120 enables movement for coupling and separation with the base part 200 while supporting the table top plate 110 through the electric actuator module 150. That is, at the lower end of the table moving body 120, a rolling operation is possible and at the same time, movement and position fixing are facilitated through a plurality of casters 122 having a wheel rotation locking function. On the other hand, the table moving body 120 has a V-shaped entry groove 125 formed on the front of the docking latch 130, and the entry groove 125 enters the rotation shaft 240 constituting the base portion 200 To induce.

7 to 9, the docking latch 130 has a hollow docking bracket 131 fixed on the table moving body 120, a pair of catchers symmetrically disposed within the docking bracket 131 ( 133) and a catcher rotation shaft 135 coupled on the catcher 133. A torsion spring is installed on the catcher rotation shaft 135, and the torsion spring allows a pair of catchers 133 to be opened so that the rotation shaft 240 can enter. That is, the catcher rotation shaft 135 maintains an initial state of the catcher open state by receiving force in the direction in which the catcher 133 is opened by a torsion spring.

In the above state, when the pair of catchers 133 is pressed through the rotation shaft 240 with a stronger force than the torsion spring, rotation of the catcher 133 around the catcher rotation shaft 135 is induced. When the catcher 133 is rotated by a certain angle or more, the position of the catcher 133 is fixed by the latch, and the catcher is locked. In the locking state of the catcher 133, when a force is applied to the side lever, the lock of the catcher 133 is released and the catcher 133 returns to the initial position.

In the above state, the rotation shaft 240 of the base portion 200 is guided along the hypotenuse of the V-shaped lead-in groove 125 constituting the table moving body 120, and is inserted through a pair of catchers 133 and fixed.

7 to 9, the pin module for positioning 140 is a pin module box 141 fixed on the table moving body 120, the pin module box 141 is elastically coupled along the longitudinal direction. Pin solenoid 143, on the end of the pin solenoid 143, the positioning pin 145 rotatably coupled through the solenoid connection shaft 144, the pin through hole 126 formed in the table moving body 120 It includes a pin bracket 146 rotatably coupled to the positioning pin 145 through the pin rotation shaft 147 in a coupled state. A long hole is formed on the upper end of the positioning pin 145 to which the solenoid connection shaft 144 is coupled, thereby enabling a sliding motion of the solenoid connection shaft 144 in a certain range. That is, in the case of rotation of the positioning pin 145 centered on the pin rotation shaft 147 along the repetitive linear motion of the pin solenoid 143, a long hole formed at the upper end of the positioning pin 145 Accordingly, a stable movement of the solenoid connection shaft 144 is possible.

On the other hand, a coil spring is coupled on one side of the pin solenoid 143 to which the solenoid connection shaft 144 is coupled. The coil spring is located on a stepped area on one side of the pin solenoid 143. In the solenoid off state of the positioning pin module 140, the coil spring has an initial state of uncompressed state, but in the solenoid on state, the coil spring has a compressed state. That is, in the process of changing the direction of the table moving body 120, the coil spring is compressed through the solenoid on to perform the direction change while the positioning pin 145 is rotated, and then the solenoid is turned off. The recovery of the positioning pin 145 to its original state is achieved through the recovery of the coil spring.

Referring to FIG. 2, the handle 160 is located at the rear end of the table top plate 110 to facilitate the transfer and rotation of the table unit 100. The handle 160 has a height-adjustable arc shape, and has a release lever 162 having a function of releasing a catcher of the latch 130 for docking.

Referring to FIG. 3, the base part 200 includes a base plate 210 detachably coupled to the table part 100, and the base plate 210 in a state disposed on the lower end of the base plate 210. A plurality of foot masters 220 having a wheel shape that enables movement and fixing of the foot master 220, which functions to reduce impact when the table unit 100 rotates in a state disposed on one side of the base plate 210 A rotation shaft 240 that is coupled with the shock absorber unit 230 and the docking latch 130 of the table unit 100 to facilitate docking in the irradiation area of the table unit 100 and rotation to a desired position, a table A positioning unit 250 having a plurality of slits 252 coupled to the positioning pin module 140 of the unit 100, detecting the position and direction of the table to control the arm rotation motion for each shooting mode It includes a plurality of sensors 280, a control box 260 in which various electric parts for controlling the rotation of the rotating arm part 300 are located, and a column 270 supporting the rotating arm part 300.

The positioning unit 250 has a state protruding in a semicircular shape on one side of the base plate 210. The positioning unit 250 has a plurality of slits 252 formed at the same distance around the rotation shaft 240 disposed on the center thereof. That is, a plurality of slits 252 are formed along a curved surface corresponding to the outer circumferential surface of the positioning unit 250, and specifically, a total of three slits 252 are on both sides and the center of the positioning unit 250 Is formed.

The shock absorber unit 230 is disposed on the base plate 210 to be positioned at both ends of the positioning unit 250. The shock absorber unit 230 functions to prevent a collision on the base plate 210 of the table unit 100 when the table unit 100 is rotated to capture various images. That is, the damper has the effect of reducing vibration and preventing impact. On the other hand, the plurality of sensors 280 makes it possible to check whether the table unit 100 is properly rotated and positioned through object recognition.

Referring to FIG. 4, the rotary arm part 300 is coupled to the upper side of the column 270 and rotates around an axis, and is coupled to the rotation shaft of the motor 310 to transport various cables therein. A hollow arm 320, an X-ray generator 330 disposed above the arm 320, a collimator 340, and a detector 350 disposed below the arm 320 are included.

The present invention allows the operator to selectively perform a total of four photographs (RAD, FLO, LT, and CBCT) through the same diagnostic device according to the type of lesion and disease. RAD (radiography) refers to a non-destructive testing method that examines the internal structure of a substance using radiation from radioactive isotopes. FLO (fluoroscopy) refers to a method of receiving radiation transmitted through a fluoroscopy test object through a fluorescent plate or a fluorescence multiplication tube and observing a transparent image on a fluorescent surface with the naked eye. Linear tomosynthesis (LT) refers to a method of performing high-resolution limited-angle tomography at a radiation dose level comparable to projection radiation. CBCT (conebeam CT) detects the transmission attenuation of the subject as a two-dimensional plane when irradiating the X-ray of the cone beam, and applies it to a mathematical algorithm called back-filtered projection to obtain information on the three-dimensional volume, and from this It refers to imaging by obtaining axial, coronal and sagittal views in multiple directions.

In the present invention, the X-ray generator 330 and the detector 350 are spaced apart by a specific distance (SID) so as to obtain four types of X-ray images and images, 320) They are fixed at each end.

In a state in which the arm 320 is perpendicular to the ground, a subject is positioned within the X-ray irradiation range to enable basic RAD and FLO photography. In this case, it is preferable that the user moves the subject to a desired position through the plurality of electric actuator modules 150 provided in the table unit 100 and then proceeds to photograph.

The X-ray count/transmission unit composed of the X-ray generator 330, the collimator 340, and the detector 350 is a motor 310, such as a motor 310 located at the rotation center of the rotating arm part 300 during 3D image capture Rotation is possible by receiving a driving force through the motor 310, and the control unit including the motor 310 is located behind the arm 320 through a separate space.

It is preferable that the user positions the subject to the center of rotation of the arm 320 using a plurality of electric actuator modules 150 provided in the table unit 100 and then proceeds to photograph.

When taking LT, the user can set the table in a direction perpendicular to the rotation axis of the motor 310 in consideration of the receiving area of the detector, and in this case, the table unit 100 rotates in both directions with the rotation axis 240 as the center. And by fixing the table unit 100 through the positioning unit 250, it is possible to determine the reliable position of the table unit 100.

The positioning pin module 140 includes a structure in which a user can remotely manipulate using a separate driving device having a solenoid, a hinge, and the like, and a switch.

In addition, sensors such as a contact switch capable of receiving position information for each angle of the table are mounted on the base part 200 so that an appropriate arm behavior can be achieved at each position.

When the table part 100 is connected to the base part 200, the control box 260 receives a mode that can be photographed according to the connection angle position through a sensor signal and is controlled.

The photographing mode is largely divided into two modes, a CBCT mode and another photographing mode. In the case of the CBCT mode, the table part 100 is placed in a position parallel to the rotation axis of the motor 310. In order to prevent unintentional photographing, the table position for each mode should be mechanically and reliably constrained, and it is desirable to control the photographing mode that does not match the table position so that it does not operate.

In the CBCT mode, the arm 320 acquires an image while rotating a scan section of a specific angle based on a virtual surface perpendicular to the length direction of the table. At this time, it is required to set the acceleration and deceleration section just before the start of the scan and immediately after the end of the scan.

In the LT mode, a scan section with a specific angle smaller than that in the CBCT mode is required, and similarly, acceleration and deceleration sections are required just before and after the start of the scan.

For fluoroscopic imaging, a dynamic detector is used as the detector, and when using a large-area detector of 43 cm x 60 cm or larger, it is recommended that the image stitching process after multiple shots can be omitted for small subjects.

The docking latch 130 disposed in front of the table part 100 is docked and released using a structure of the rotation shaft 240 of the base part 200, which is a counterpart, and separate wires and switches to improve user convenience. Make it possible to operate remotely using a structure

In this case, a V-shaped entry groove 125 is formed in front of the docking latch 130 of the table portion 100, and a docking latch is formed through guide lines in the shape of an inclined plane forming both sides of the entry groove 125. It enables easy and accurate entry of the rotation shaft 240 toward (130).

The composite X-ray imaging apparatus for medical diagnosis according to the present invention can selectively apply an optimal imaging method by varying the imaging mode according to the type of image to be acquired, thereby significantly reducing the time and labor required for imaging to the subject and user. It is possible to alleviate it.

Although the present invention has been described through the above embodiments, the present invention is not limited thereto. The above embodiments may be modified or changed without departing from the spirit and scope of the present invention, and those skilled in the art will recognize that such modifications and changes also belong to the present invention.

100: table part
200: base part
300: rotating arm part

Claims (4)

In the composite X-ray imaging device for medical diagnosis,
A table unit 100 having a movable structure while the subject is located;
A base part 200 that enables guidance to a photographing position of the subject in a state coupled to the table part 100 and enables easy rotation of the table part 100 in accordance with a photographing mode. ); And
And a rotating arm part 300 rotatably coupled to the base part 200 and configured to obtain a medical image of the subject on the table part 100 through an X-ray generator and a receiving part. ,
Complex X-ray imaging device for medical diagnosis.
The method of claim 1,
The table portion 100,
A curved table top plate 110 that effectively maintains strength through a cantilever structure and helps to move the subject to the center position of the table unit 100;
A table moving body 120 having a plurality of casters 122 for facilitating movement to the subject position for loading the subject;
A docking latch 130 that enables the table to rotate in an appropriate direction after moving the loaded subject to the X-ray irradiation area of the corresponding imaging equipment;
A positioning pin 140 for reliably fixing at a predetermined shooting angle;
A plurality of electric actuators 150 for facilitating movement to an accurate photographing position by adjusting a height and a longitudinal position of the loaded subject; And
Characterized in that it includes; an arc-shaped handle 160 that is located at the rear end of the table top plate 110 to facilitate the transfer and rotation of the table portion 100,
Complex X-ray imaging device for medical diagnosis.
The method of claim 1,
The base part 200,
A base plate 210 detachably coupled to the table portion 100;
A plurality of foot masters 220 capable of moving and fixing the base plate 210 while being disposed on the lower end of the base plate 210;
A shock absorber unit 230 that is disposed on one side of the base plate 210 and functions to reduce an impact when the table unit 100 rotates;
A rotation shaft 240 that facilitates docking of the table portion 100 in the irradiation area and rotation to a desired position;
A positioning unit 250 having a plurality of slits 252 coupled to the docking latch 130 of the table unit 100;
A plurality of sensors 280 for sensing the position and direction of the table to control the arm rotation motion for each mode;
A control box 260 in which various electric parts for controlling the rotation of the rotary arm part 300 are located;
A composite X-ray imaging apparatus for medical diagnosis comprising a; column 270 supporting the rotating arm part 300.
The method of claim 3,
The rotation arm part 300,
A motor 310 coupled to an upper portion of the column 270 and rotating about an axis;
A hollow arm 320 that is coupled with the rotation shaft of the motor 310 to transport various cables therein;
An X-ray generator 330 and a collimator 340 disposed on the upper side of the arm 320;
A complex X-ray imaging apparatus for medical diagnosis, comprising: a detector 350 disposed under the arm 320.

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