X-ray imaging device

Abstract

An X-ray imaging device is disclosed. The X-ray imaging device of the present disclosure may comprise: a fixed frame; an X-ray generator movably coupled to the fixed frame; a moving assembly for moving the X-ray generator in the horizontal direction; a detector to which the X-ray generator is directed; and a collimator which is disposed between the X-ray generator and the detector, and which has a hole through which X-rays of the X-ray generator pass.

Description

X-ray imaging device

[0001] The present disclosure relates to an x-ray imaging device.

[0002] X-ray imaging devices are widely used in medical imaging and industrial inspection, and are generally used to visualize the internal structure of an object. The digital tomosynthesis system of such an X-ray imaging device can acquire a three-dimensional image by capturing multiple projected images that pass through an object and reconstructing them. Here, the X-ray imaging device is equipped with an X-ray generator that irradiates X-rays toward a detector where the object is located.

[0003] Recently, much research is being conducted on structures that can minimize the space occupied by X-ray imaging devices and increase ease of use.

[0004] The present disclosure aims to solve the aforementioned problems and other problems.

[0005] Another objective may be to provide an X-ray imaging device capable of photographing an object without rotating the X-ray generator.

[0006] Another purpose may be to provide a mechanism for moving the X-ray generator horizontally.

[0007] Another purpose may be to provide a mechanism for moving the X-ray generator in a first direction and / or a second direction.

[0008] Another objective may be to provide a structure that sequentially irradiates X-rays onto the effective irradiation area of ​​the detector.

[0009] Another objective may be to provide a structure that minimizes the spread of X-rays from a moving X-ray generator outside the effective irradiation area of ​​the detector.

[0010] Another objective may be to provide an X-ray imaging device with a stable center of gravity and a compact structure.

[0011] Another purpose may be to provide a structure that covers the hole in the body where the vertically moving arm is located.

[0012] Another objective may be to provide a structure that enhances the stability and usability of the base of the X-ray imaging device.

[0013] According to one aspect of the present disclosure for achieving the above or other purposes, an X-ray imaging device may comprise: a fixed frame; an X-ray generator movably coupled to the fixed frame; a moving assembly for moving the X-ray generator in a horizontal direction; a detector toward which the X-ray generator is directed; and a collimator disposed between the X-ray generator and the detector and having a hole through which the X-ray of the X-ray generator passes.

[0014] The effects of the X-ray imaging device according to the present disclosure are described as follows.

[0015] According to at least one of the embodiments of the present disclosure, an X-ray imaging device capable of photographing an object without rotating the X-ray generator can be provided.

[0016] According to at least one of the embodiments of the present disclosure, a mechanism for moving an X-ray generator in a horizontal direction can be provided.

[0017] According to at least one of the embodiments of the present disclosure, a mechanism for moving an X-ray generator in a first direction and / or a second direction can be provided.

[0018] According to at least one of the embodiments of the present disclosure, a structure for sequentially irradiating X-rays to an effective irradiation area of ​​a detector can be provided.

[0019] According to at least one of the embodiments of the present disclosure, a structure can be provided that minimizes the spreading of X-rays from a moving X-ray generator outside the effective irradiation area of ​​a detector.

[0020] According to at least one of the embodiments of the present disclosure, an X-ray imaging device having a stable center of gravity and a compact structure can be provided.

[0021] According to at least one of the embodiments of the present disclosure, a structure can be provided that covers a hole in a body where a vertically moving arm is located.

[0022] Another objective is to provide a structure that enhances the stability and usability of the base of the X-ray imaging device.

[0023] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples.

[0024] FIGS. 1 to 29 are drawings illustrating examples of X-ray imaging devices according to embodiments of the present disclosure.

[0025] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0026] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0027] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0028] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0029] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0030] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0031] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0032] The directional indications of Up (U), Down (D), Left (Le), Right (Ri), Front (F), and Rear (R) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.

[0033]

[0034] Referring to FIG. 1, the head (8) of the X-ray imaging device (1) may include an X-ray generator. The X-ray generator of the head (8) can irradiate X-rays toward a detector (9), and the detector (9) can detect X-rays.

[0035] The base (2) can form the bottom of the X-ray imaging device (1). The base (2) can be flat overall. Multiple wheels (2W, wheels) can be mounted on the bottom of the base (2). Accordingly, the X-ray imaging device (1) can move freely.

[0036] The body (3) may be positioned on the base (2). The body (3) may have an overall vertically elongated box shape. Some of the electronic components of the X-ray imaging device (1) may be mounted inside the body (3).

[0037] The pole (4) may extend upward from the top of the body (3). The pole (4) may be adjacent to the corner of the top of the body (3). For example, the vertical length of the pole (4) may be equal to or greater than the vertical length of the body (3).

[0038] The display (5) can be connected to the pole (4) via an arm (6). The display (5) can be any one of various types of display panels, such as an LCD (Liquid Crystal Display) panel or an OLED (Organic Light Emitting Diode) panel. The display (5) can output an image corresponding to the X-rays detected by the detector (9). The display (5) can output an image indicating the operation, status, etc. of the X-ray imaging device (1). The display (5) can be called a monitor (5), and the arm (6) can be called a monitor arm (6).

[0039] A keyboard (3K) can be attached to the top of the body (3). A keyboard stand (3S) can protrude from the top of the body (3), and the keyboard (3K) can be fixed on the keyboard stand (3S). The user can input information or commands into the X-ray imaging device (1) using the keyboard (3K). A handle (3H) can be connected to the keyboard stand (3S), and the user can move the X-ray imaging device (1) by holding the handle (3H).

[0040] One end of the arm (7) can be connected to the side of the body (3). The other end of the arm (7) can be connected to the head (8). That is, the head (8) can be connected to the body (3) through the arm (7).

[0041] The head (8) may have an overall square box shape. The head (8) may be referred to as an X-ray generating module (8). The detector (9) may have an overall square flat plate shape. The detector (9) may face the head (8). The detector (9) can detect X-rays output from the X-ray generator of the head (8).

[0042] The C-arm (9C, c-arm) may have a C shape overall. The C-arm (9C) may connect the head (8) and the detector (9). The C-arm (9C) may be referred to as a C-shaped arm (9C, C-shaped arm).

[0043]

[0044] Referring to FIG. 2, a plurality of wheels (2W) may be mounted on the bottom of the base (2). For example, four wheels (2W) may be adjacent to four corners of the base (2). For example, the wheels (2W) may be caster wheels. A locker (2L) may be attached to the wheels (2W) and may allow the wheels (2W) to rotate or stop the wheels (2W) from rotating. When the wheels (2W) are locked by the locker (2L), the wheels (2W) cannot rotate, so the movement of the base (2) on the ground can be minimized.

[0045] An uninterruptible power supply (2P) can be mounted on the bottom of the base (2) and can be spaced apart from the ground on which the wheels (2W) are placed. The uninterruptible power supply (2P) can be briefly referred to as UPS (2P). A battery can be built into the uninterruptible power supply (2P). An input terminal (2t) can be provided on the side of the uninterruptible power supply (2P), and a power cable can be electrically connected to the input terminal (2t). A switch (2s) can be provided on the side of the uninterruptible power supply (2P), and a user can turn the power of the X-ray machine on or off by operating the switch (2s).

[0046] An input terminal (3t) may be provided on the side of the body (3), and a power cable may be electrically connected to the input terminal (3t). For example, a computer installed inside the body (3) may receive power from the input terminal (3t).

[0047]

[0048] Referring to FIG. 3, the arm (7) may be an articulated arm (7). The arm (7) may be referred to as an articulated arm (7), a foldable arm (7), or a variable arm (7). The height (position), angle, etc. of the arm (7) may be adjustable. The arm (7) may include a first arm (71), a second arm (72), a third arm (73), and a fourth arm (74).

[0049] The first arm (71) can be extended. The first arm (71) can form an incline with respect to the vertical direction or be parallel to the vertical direction.

[0050] The second arm (72) may be extended in a direction intersecting the first arm (71). One end of the second arm (72) may be rotatably coupled to the first arm (71). The second arm (72) may rotate around a rotation axis (A3). The rotation axis (A3) may be parallel to the vertical direction, i.e., the y-axis direction. For example, the second arm (72) may rotate 90 degrees around the rotation axis (A3). The second arm (72) may rotate around a rotation axis (A4). The rotation axis (A4) may be parallel to the horizontal direction, i.e., the x-axis direction. For example, the second arm (72) may rotate 30 degrees around the rotation axis (A4). Accordingly, the second arm (72) may swivel left and right or tilt up and down relative to the first arm (71).

[0051] The third arm (73) may extend in a direction intersecting the second arm (72). The third arm (73) may extend along the vertical direction. One end of the third arm (73) may be rotatably connected to the other end of the second arm (72). The third arm (73) may rotate around a rotation axis (A6). The rotation axis (A6) may be parallel to the vertical direction, i.e., the y-axis direction. For example, the third arm (73) may rotate 180 degrees around the rotation axis (A6). Accordingly, the third arm (73) may swivel left and right relative to the second arm (72).

[0052] The fourth arm (74) can be connected to the other end of the third arm (73). The fourth arm (74) may be a U-shaped arm. The fourth arm (74) may be referred to as a U-arm (74). The central part of the fourth arm (74) may be rotatably connected to the other end of the third arm (73). The fourth arm (74) may rotate around a rotation axis (A7). The rotation axis (A7) may be parallel to the horizontal direction, i.e., the z-axis direction. For example, the fourth arm (74) may rotate 180 degrees around the rotation axis (A7). Accordingly, the fourth arm (74) may pivot relative to the third arm (73).

[0053] The head (8) may be positioned between both ends of the fourth arm (74). The head (8) may be rotatably coupled to both ends of the fourth arm (74). The head (8) may rotate around a rotation axis (A8). The rotation axis (A8) may be parallel to the horizontal direction, i.e., the x-axis direction. For example, the head (8) may rotate 30 degrees or 90 degrees around the rotation axis (A8). Accordingly, the head (8) may be tilted up and down relative to the fourth arm (74).

[0054] Meanwhile, the cable (C) can be electrically connected to the connector (8c) of the head (8). The cable (C) can be electrically connected to an electronic component within the body (3, see FIG. 2). The electronic component embedded in the body (3) can transmit and receive signals and data to and from the head (8) through the cable (C). A portion of the cable (C) can be positioned along the arm (7).

[0055]

[0056] Referring to FIGS. 4 and 5, the case (30) may form the exterior of the body (3). The frame (30F, see FIG. 7) may form the skeleton of the body (3). The case (30) may have a rectangular cylindrical shape. A hole (3P) may be formed on the side of the case (30). The hole (3P) may be formed by penetrating the front part (30a) of the case (30). The hole (3P) may extend in a vertical direction. The length of the hole (3P) (i.e., length in the y-axis direction) may be greater than the width of the hole (3P) (i.e., length in the x-axis direction). The hole (3P) may be referred to as an elongated hole (3P) or a slot (3P).

[0057] The insert (711) can penetrate the hole (3P) and move along the hole (3P). The insert (711) may be part of the first arm (71), that is, the arm (7) can move along the hole (3P). The movement of the arm (7) may be restricted by the insert (711) being caught on the top or bottom of the hole (3P).

[0058] The cover (31) can cover the hole (3P) of the case (30). The cover (31) can be placed inside the case (30) to cover the rear of the hole (3P). The cover (31) can be extended, and a part of the cover (31) can cover the hole (3P). An insert (711) can be fixed to the cover (31). The insert (711) can penetrate the cover (31) and can be fixed to the cover (31). The cover (31) can be flexible. The cover (31) can be referred to as a shield (31), a barrier (31), or a band (31).

[0059] The guide rib (30R) can be coupled to the inside of the case (30) and can extend in a vertical direction. The cover (31) can be positioned between the first guide rib (30Ra) and the second guide rib (30Rb). The cover (31) can be coupled to the guide rib (30R) so as to be movable in a vertical direction. That is, the guide rib (30R) can guide the movement of the cover (31).

[0060]

[0061] Referring to FIGS. 6 and 7, the supporter (30S) may be placed inside the case (30). The supporter (30S) may be fixed to the bottom of the insertion part (711). The supporter (30S) may be extended or compressed in a vertical direction. For example, the supporter (30S) may include a first supporter (34) and a second supporter (35). Alternatively, the supporter (30S) may further include a third supporter (351, see FIG. 11) that protrudes from or is inserted into the second supporter (35). The supporter (30S) may be referred to as a lift column (30S, lift column).

[0062] The first supporter (34) can form the lower side of the supporter (30S). The first supporter (34) may have the shape of a square box. The second supporter (35) may be coupled to the first supporter (34) so ​​as to be movable in the vertical direction. At least a portion of the second supporter (35) may be inserted into the first supporter (34) or exposed outside the first supporter (34). The second supporter (35) may have the shape of a square box smaller in size than the first supporter (34). The insertion part (711) may be located on the second supporter (35) and may be fixed to the second supporter (35). Accordingly, the position of the insertion part (711) may be adjusted in correspondence with the height adjustment of the supporter (30S).

[0063]

[0064] Referring to FIG. 8 together with FIG. 7, the lift assembly (39) can provide power to the supporter (30S). The lift assembly (39) may be installed inside the supporter (30S) or on the side of the supporter (30S). The lift assembly (39) may be a linear actuator (39).

[0065] The motor (391) may be fixed to the supporter (30S) and / or body (3). The motor (391) may be an electric motor. The rotational direction, rotational angle, and rotational speed of the rotation shaft (391a) of the motor (391) may be adjusted.

[0066] The lead screw (395) can be extended in the longitudinal direction, i.e., the vertical direction, of the supporter (30S). One end of the lead screw (395) can be fixed to the rotating shaft (391a) of the motor (391). A coupling member (392) can be positioned between the rotating shaft (391a) and the lead screw (395) and can be fixed to the rotating shaft (391a).

[0067] The slider (396) can be coupled to the lead screw (395). Threads can be formed on the outer surface of the lead screw (395), and the lead screw (395) can pass through the slider (396). The slider (396) can engage with the threads of the lead screw (395). The slider (396) can be referred to as a carrier (396) or a moving block (396).

[0068] The guide rail (397) may extend along the lead screw (395). The slider (396) may move along the guide rail (397). The slider (396) may be coupled to the guide rail (397), and rotation relative to the lead screw (395) may be restricted by the guide rail (397). Accordingly, in response to the driving of the motor (391), the slider (396) may move in a linear reciprocating motion along the lead screw (395) (see MD).

[0069] The first block (393) may be located between the coupling member (392) and the slider (396). The lead screw (395) may be rotatably coupled to the first block (393). When the slider (396) comes into contact with the first block (393), the movement of the slider (396) may be restricted.

[0070] The second block (394) may be opposite to the first block (393) with respect to the slider (396). The lead screw (395) may be rotatably coupled to the second block (394). When the slider (396) comes into contact with the second block (394), the movement of the slider (396) may be restricted.

[0071] One side of the supporter (30S) can be fixed to the slider (396). The second supporter (35) can be fixed to the slider (396). That is, in response to the driving of the motor (391), the slider (396) and the second supporter (35) can rise or fall. Alternatively, the third supporter (351, see FIG. 11) may be fixed to the slider (396), in which case the slider (396) and the third supporter (351) can rise or fall.

[0072] The sensor (39U) may be adjacent to the first block (393) and / or the second block (394). The first sensor (39Ua) may be positioned adjacent to the first block (393) and may be fixed to the guide rail (397) and / or the first block (393). The second sensor (39Ub) may be positioned adjacent to the second block (394) and may be fixed to the guide rail (397) and / or the second block (394). For example, the sensor (39U) may be a photo sensor. The sensor (39U) may include a light-emitting part and a light-receiving part, and the light-emitting part may output light in the infrared wavelength range toward the light-receiving part. If an object is placed between the light-emitting part and the light-receiving part and blocks the light from the light-emitting part, the sensor (39U) may detect the object.

[0073] A portion (396P) of the slider (396) may protrude from the remainder of the slider (396) toward the sensor (39U). In other words, the sensor (39U) may be located on the path of movement of the portion (396P) of the slider (396). When the portion (396P) of the slider (396) is located between the light-emitting part and the light-receiving part of the sensor (39U), the sensor (39U) can detect the slider (396). The slider (396) may be positioned corresponding to the first sensor (39Ua), in which case the second supporter (35) may be positioned at the lowest position. The slider (396) may be positioned corresponding to the second sensor (39Ub), in which case the second supporter (35) may be positioned at the highest position.

[0074]

[0075] Referring to FIGS. 9 and 10, the cover (31) may be elastic and flexible. The cover (31) may include a plastic material. For example, the material of the cover (31) may be high-density polyethylene (HDPE). The insertion part (711) of the arm (7) may be fixed between both ends of the cover (31).

[0076] A lower guide (31L) may be formed on the inner surface of the front part (30a) of the case (30) of the cover (31) and may be adjacent to the bottom of the cover (31). The lower guide (31L) may be referred to as the lower part (31L). The lower guide (31L) may include an inclined surface (31LS) facing the internal space of the case (30). The inclined surface (31LS) may be flat or curved. The inclined surface (31LS) may move further away from the inner surface of the case (30) as it faces the bottom of the case (30).

[0077] An upper guide (31U) may be formed on the inner surface of the front part (30a) of the case (30) of the cover (31) and may be adjacent to the top of the cover (31). The upper guide (31U) may be referred to as the upper part (31U). The upper guide (31U) may include an inclined surface facing the internal space of the case (30). The inclined surface may be flat or curved.

[0078] When the insert (711) and the cover (31) descend together with the supporter (30S), the lower part of the cover (31) can be guided by bending along the lower guide (31L). When the insert (711) and the cover (31) ascend together with the supporter (30S), the upper part of the cover (31) can be guided by bending along the upper guide (31U).

[0079] Accordingly, the cover (31) can continuously cover the hole (3P) of the case (30) regardless of the raising and lowering of the arm (7). As a result, the inflow of external material into the body (3) can be minimized.

[0080]

[0081] Referring to FIG. 11, a computer (39a) may be installed inside the body (3). The computer (39a) may be referred to as a PC (39a, personal computer) or a desktop (39a). Computer peripherals such as a printer (39b) and an ODD (39c, optical disc drive) such as a CD-ROM may also be installed inside the body (3).

[0082] An X-ray generator (80X) can be mounted inside the head (8). The frame (80) of the head (8) can support the X-ray generator (80X) and may have a hole through which X-rays generated from the X-ray generator (80X) pass. The X-ray generator (80X) can move. The X-ray generator (80X) can move in the horizontal direction, that is, in the x and y axis directions.

[0083] The detector (9) can detect X-rays output from the X-ray generator (80X). The X-rays from the X-ray generator (80X) can be read as electrical signals by the detector (9), and the X-ray imaging device (1) can provide an image corresponding to the electrical signals through the display (5).

[0084]

[0085] Referring to FIG. 12, a conventional tomosynthesis system (S') may include an X-ray generator (80X') and a detector (9'). The X-ray generator (80X') may move along a specific rotational trajectory and irradiate X-rays toward an object (J) on the detector (9') (see A, B, and C of FIG. 12). The object (J) may be at least a part of a patient's body. The detector (9') may generate an electrical signal corresponding to the dose of X-rays that have passed through the object (J). In response to the rotation and movement of the X-ray generator (80X'), a plurality of projection data (PD1', PD2', PD3') may be generated by the detector (9').

[0086] A first point (X1) on the first plane (Plane 1) of the object (J) and a second point (X2) on the second plane (Plane 2) of the object (J) can be projected onto the X-rays of an X-ray generator (80X') and mapped to multiple projection data (PD1', PD2', PD3').

[0087] In response to the rotation and movement of the X-ray generator (80X'), the first point (X1) and the second point (X2) can be mapped differently to each of the multiple projection data (PD1', PD2', PD3'). That is, an additional step of reconstructing the multiple projection data (PD1', PD2', PD3') into a 2D or 3D X-ray tomographic image of the object (J) is required.

[0088]

[0089] Referring to FIG. 13, a tomosynthesis system (S) may include an X-ray generator (80X) and a detector (9). The X-ray generator (80X) may be equipped with an X-ray source (80S) that emits X-rays. The X-ray source (80S) may irradiate X-rays toward an object (J) on the detector (9). The X-ray source (80S) may emit X-rays in an electric field manner. The X-ray generator (80X) may be referred to as a tank (80X), and the X-ray source (80S) may be referred to as a tube (80S). The object (J) may be at least a part of a patient's body. The detector (9) may generate an electrical signal corresponding to the dose of X-rays that have passed through the object (J). In response to the emission of X-rays from the X-ray generator (80X), multiple projection data (PD1, PD2, PD3) can be generated by the detector (9).

[0090] A first point (X1) on the first plane (Plane 1) of the object (J) and a second point (X2) on the second plane (Plane 2) of the object (J) can be projected by X-rays from an X-ray generator (80X) and mapped to multiple projection data (PD1, PD2, PD3).

[0091] For example, the tomosynthesis system (S) can control the X-ray generator (80X) within the head (8) to move linearly (horizontally) (see u in FIG. 13). That is, the X-ray source (80S) can move in a horizontal direction. Corresponding to the horizontal movement of the X-ray source (80S), the first point (X1) and the second point (X2) can be mapped differently to each of the multiple projection data (PD1, PD2, PD3). That is, an additional step of reconstructing the multiple projection data (PD1, PD2, PD3) into a 2D or 3D X-ray tomographic image of the object (J) is required. However, unlike the conventional tomosynthesis system (S') of FIG. 12, it is necessary to reconstruct multiple projection data (PD1, PD2, PD3) into a 2D or 3D X-ray tomographic image of an object (J) by considering the horizontal movement characteristics of the X-ray source (80S) of the system (S).

[0092]

[0093] Referring to FIGS. 14 and 15, the X-ray source (80S) can move horizontally. The horizontal plane in which the X-ray source (80S) moves can be parallel to the horizontal plane of the detector (9).

[0094] The frame (80) of the head (8) may have a square frame shape and may include two opposite short sides (80a, 80b) and two opposite long sides (80c, 80d). The first line (80u) may extend in a direction parallel to the long sides (80c, 80d) and may move along the short sides (80a, 80b). The second line (80v) may extend in a direction parallel to the short sides (80a, 80b) and may move along the long sides (80c, 80d). The X-ray source (80S) may be located at the intersection of the first line (80u) and the second line (80v). The X-ray source (80S) can move in a first direction (u) or a second direction (v) in response to the movement of the first line (80u) or the second line (80v). The first direction (u) may be a direction parallel to the z-axis, and the second direction (v) may be a direction parallel to the x-axis.

[0095] Accordingly, the X-ray source (80S) can move in two axes in the horizontal direction. For example, the head (8) may be equipped with a motor assembly that moves the first line (80u) and the second line (80v). The motor assembly may be a component of the X-ray generator (80X).

[0096] The X-ray source (80S) may have a constant irradiation angle (theta). The collimator may limit the irradiation angle of the X-rays emitted from the X-ray source (80S) to a certain range. The X-rays from the X-ray source (80S) may reach a part of the detector (9). In other words, the X-ray irradiation range of the X-ray source (80S) may be smaller than the area of ​​one side of the detector (9) facing the head (8). X-rays from the X-ray source (80S) at any position may penetrate a part of the object (J) on the detector (9).

[0097] The control unit of the X-ray imaging device (1) may be electrically connected to the X-ray source (80S) and the motor assembly. The control unit may move the X-ray source (80S) in a horizontal direction. The control unit may control the On and Off of the X-ray source (80S). The control unit may turn on the X-ray source (80S) to emit X-rays when the X-ray source (80S) is positioned at a specific location. Alternatively, the control unit may continuously emit X-rays while moving the X-ray source (80S). The control unit may sequentially image parts of the patient's body (e.g., arms) on the detector (9) while moving the X-ray source (80S) in a horizontal direction. That is, the X-ray imaging device (1) may be a non-rotating X-ray imaging device based on digital tomosynthesis.

[0098]

[0099] Referring to FIG. 16, the head (8) of the X-ray imaging device (1) may include a frame (80) and an X-ray generator (80X). The frame (80) may include a bottom frame (801), a top frame (802), and a column (803). The X-ray generator (80X) may be placed inside the frame (80).

[0100] The bottom frame (801) can form the bottom of the head (8). A bottom cover can cover the bottom frame (801). The bottom frame (801) can have the shape of a square plate overall.

[0101] The top frame (802) can form the top of the head (8). A top cover can cover the top frame (802). The top frame (802) can have the shape of a square plate overall. The top frame (802) can be spaced upward from the bottom frame (801).

[0102] A column (803) may be positioned between a bottom frame (801) and a top frame (802) and may extend in a direction intersecting the bottom frame (801) and the top frame (802). The column (803) may be a vertical bar (803). The column (803) may connect the bottom frame (801) and the top frame (802). For example, a first column (803a) and a second column (803b) may connect the front part of the bottom frame (801) and the front part of the top frame (802). For example, a rear part (804) may be bent upward from the rear part of the bottom frame (801) and may be connected to the rear part of the top frame (802). For example, a connecting part (805) may be bent upward from the left and right sides of the bottom frame (801).

[0103] The C-arm (9C) can be coupled to the rear of the rear part (804). The detector (9) coupled to the C-arm (9C) can face the bottom of the head (8).

[0104] The U-arm (74) can be connected to the connecting part (805). The U-arm (74) can be hinge-connected to the connecting part (805), and the hinge axis (A, axis) can be parallel to the left and right directions. The head (8) equipped with the connecting part (805) can rotate around the hinge axis (A).

[0105] As described above and below, the X-ray imaging device of the present disclosure can have a stable center of gravity and a compact structure. Also, as described above and below, the X-ray imaging device of the present disclosure can have a structure in which vibration caused by the movement of the X-ray generator (80X) is minimized.

[0106]

[0107] Referring to FIGS. 17 and 18, the top frame (802) may have a square plate shape overall. The top frame (802) may be referred to as a fixed frame (802). The length of the top frame (802) may be defined in a first direction (DR1), and the width of the top frame (802) may be defined in a second direction (DR2) that intersects the first direction (DR1). For example, the length of the top frame (802) may be greater than the width of the top frame (802). For example, a plurality of holes (not shown) may be formed in the top frame (802). The holes may be long holes in the first direction (DR1).

[0108] The first moving assembly (81) may be mounted on the top frame (802). The first moving assembly (81) may include a motor (810), a drive pulley (811), a driven pulley (812), and a belt (813). The belt (813) may be a timing belt (813).

[0109] The motor (810) can be fixed to the top frame (802). The motor (810) can be fixed to the bottom of the top frame (802) adjacent to the rear portion of the top frame (802). The motor (810) may be an electric motor capable of adjusting the rotation direction, rotation speed, and rotation angle. The motor (810) may be a BLDC (Brushless DC) motor or a stepper motor. A sensor such as an encoder may detect the rotation angle of the rotation shaft of the motor (810).

[0110] The drive pulley (811) can be fixed to the rotating shaft of the motor (810) and can rotate together with the rotating shaft. The axis of rotation of the drive pulley (811) can be perpendicular to the first and second directions (DR1, DR2). In other words, the axis of rotation of the drive pulley (811) can be parallel to the vertical direction.

[0111] The driven pulley (812) may be spaced apart from the driving pulley (811) in the first direction (DR1). The driven pulley (812) may be adjacent to the front portion of the top frame (802), and the driving pulley (811) may be adjacent to the rear portion of the top frame (802). The driven pulley (812) may be rotatably coupled to the bottom of the top frame (802). The axis of rotation of the driven pulley (812) may be parallel to the axis of rotation of the driving pulley (811).

[0112] The belt (813) can be engaged with the drive pulley (811) and the driven pulley (812) to connect them. The belt (813) is a timing belt (813) that forms a closed loop and can move in conjunction with the rotating pulleys (811, 812). A coupler (814, coupler) can be fixed to the belt (813) and can move together with the belt (813).

[0113] The rail (815) may extend in a first direction (DR1). The rail (815) may be attached to the top frame (802). The rail (815) may be fixed to the bottom of the top frame (802) adjacent to the belt (813). The rails (815) may be spaced apart from each other in a second direction (DR2). For example, the first rail (815a) may be positioned between the belt (813) and the left side of the top frame (802), and the second rail (815b) may be positioned between the belt (813) and the right side of the top frame (802).

[0114] The slider (816) can be coupled to the rail (815) and can move along the rail (815). The slider (816) can be restricted in vertical movement by being caught on the rail (815) and can slide back and forth. The sliders (816) can be placed on the rail (815). For example, the first slider (816a) can move along the first rail (815a), and the second slider (816b) can move along the second rail (815b).

[0115] The movable frame (83) may be located below the top frame (802). The movable frame (83) may be fixed to the coupler (814) and the slider (816). The movable frame (83) may be referred to as a moving plate (83).

[0116] Accordingly, in response to the driving of the motor (810), the movable frame (83) fixed to the coupler (814) can move in the first direction (DR1), that is, back and forth. The rail (815) can guide the movement of the slider (816) fixed to the movable frame (83).

[0117]

[0118] Referring to FIGS. 19 and 20, the second moving assembly (82) may be mounted on a moving frame (83). The second moving assembly (82) may include a motor (820), a drive pulley (821), a driven pulley (822), and a belt (823). The belt (823) may be a timing belt (823).

[0119] The motor (820) may be fixed to the movable frame (83). The motor (820) may be mounted on a mount (830A) of the movable frame (83). The mount (830A) may be formed on the movable frame (83) or fixed to the movable frame (83). For example, a part of the movable frame (83) may be bent downward from another part to form the mount (830A). The mount (830A) may be adjacent to the right side of the movable frame (83). The motor (820) may be an electric motor capable of adjusting the direction of rotation, rotational speed, and rotational angle. The motor (820) may be a BLDC (Brushless DC) motor or a stepper motor. A sensor such as an encoder may detect the rotational angle of the rotation shaft of the motor (820).

[0120] The drive pulley (821) can be fixed to the rotation shaft of the motor (820) and can rotate together with the rotation shaft. The rotation axis of the drive pulley (821) can be parallel to the first direction (DR1). In other words, the rotation axis of the drive pulley (821) can be parallel to the front-rear direction.

[0121] The driven pulley (822) may be spaced apart from the driving pulley (821) in the second direction (DR2). The driven pulley (822) may be mounted on the movable frame (83). The driven pulley (822) may be rotatably coupled to a holder (830B) of the movable frame (83). The holder (830B) may be formed on the movable frame (83) or fixed to the movable frame (83). For example, a part of the movable frame (83) may be bent downward from another part to form the holder (830B). The holder (830B) may be adjacent to the left side of the movable frame (83). The driven pulley (822) may be rotatably coupled to the holder (830B). The axis of rotation of the driven pulley (822) may be parallel to the axis of rotation of the driving pulley (821).

[0122] The belt (823) can be engaged with the drive pulley (821) and the driven pulley (822) to connect them. The belt (823) is a timing belt (823) that forms a closed loop and can move in conjunction with the rotating pulleys (821, 822). A coupler (824) can be fixed to the belt (823) and can move together with the belt (823).

[0123] The rail (825) may extend in a second direction (DR2). The rail (825) may be coupled to a movable frame (83). The rail (825) may be fixed to the bottom of the movable frame (83) adjacent to the belt (823). The rails (825) may be spaced apart from each other in a first direction (DR1). For example, the second rail (825b) may be positioned between the first rail (825a) and the third rail (825c).

[0124] The slider (826) can be coupled to the rail (825) and can move along the rail (825). The slider (826) can have its vertical movement restricted by being caught on the rail (825) and can slide left and right. The sliders (826) can be placed on the rail (825). For example, the first slider (826a) can move along the first rail (825a), the second slider (826b) can move along the second rail (825b), and the third slider (826c) can move along the third rail (825c).

[0125]

[0126] Referring to FIGS. 20 and 21, the bracket (84) may be located below the movable frame (83). The bracket (84) may be fixed to the slider (826). Alternatively, the bracket (84) may be fixed to the slider (826) and the coupler (824). The bracket (84) may have the shape of a square box that is open downwards overall. The bracket (84) may include a first part (841), a second part (842), a third part (843), and a fourth part (844).

[0127] The first part (841) may form the left side of the bracket (84). The first part (841) may be a vertical plate. The first groove (841G) may be formed in the first part (841) and may be positioned corresponding to the holder (830B). The first groove (841G) may be referred to as the first hole (841G) or the first cut-out (841G, cut-out).

[0128] The second part (842) may form the right side of the bracket (84). The second part (842) may be a vertical plate. The second groove (842G) may be formed in the second part (842) and may be positioned corresponding to the motor (820). The second groove (842G) may be referred to as the second hole (842G) or the second cut-out (842G, cut-out).

[0129] The third part (843) can connect the first part (841) and the second part (842). The third part (843) may be a horizontal plate. The third part (843) may form the upper surface of the bracket (84). The third part (843) may be fixed to the slider (826). Alternatively, the third part (843) may be fixed to the slider (826) and the coupler (824). The third part (843) may be referred to as the top part (843).

[0130] The fourth part (844) can connect the first part (841) and the second part (842). The fourth part (844) may be a vertical plate. The fourth part (844) may form the rear or front of the bracket (84). The fourth part (844) may be called the rear part (844) or the front part (844).

[0131] The X-ray generator (80X) may have an overall box shape. An X-ray irradiation hole (80H) through which X-rays pass may be formed at the bottom of the X-ray generator (80X). The X-ray generator (80X) may be positioned between the first part (841) and the second part (842) and may be mounted on a bracket (84). The X-ray generator (80X) may be fixed to a coupler (824). Alternatively, the bracket (84) may be fixed to a slider (826) and a coupler (824), and the X-ray generator (80X) may be fixed to the slider (826) and a coupler (824) by being fixed to the bracket (84).

[0132] Accordingly, in response to the driving of the motor (820), the X-ray generator (80X) and the bracket (84) can move together with the coupler (824) in a second direction (DR2), that is, left and right. The rail (825) can guide the movement of the slider (826) fixed to the bracket (84).

[0133] Additionally, by arranging the grooves (841G, 842G) of the bracket (84) so ​​as to face each other, interference between the second moving assembly (82) and the bracket (84) that moves left and right can be prevented. That is, the grooves (841G, 842G) can function as avoidance holes for the mount (830A), motor (820), driving pulley (821), driven pulley (822), holder (830B), and belt (823).

[0134]

[0135] Referring to FIGS. 22 and 23, a collimator (85) can be mounted on a bottom frame (801). The collimator (85) can be positioned in the front portion of the bottom frame (801). A mounting hole (801H) can be formed in the bottom frame (801), and the collimator (85) can be positioned corresponding to the mounting hole (801H). The collimator (85) can be positioned in the mounting hole (801H) and fixed to the bottom frame (801). The collimator (85) can be referred to as a stationary collimator (85).

[0136] The X-ray generator (80X) may be directed toward the bottom frame (801) and may be spaced upward from the bottom frame (801). The radiation port (80H) of the X-ray generator (80X) may be directed toward the collimator (85) and may be spaced upward from the collimator (85). The X-ray generator (80X) may move forward, backward, and / or left and right.

[0137]

[0138] Referring to FIGS. 23 and 24, an X-ray source (80S) that emits X-rays may be placed inside an X-ray generator (80X). For example, the X-ray source (80S) may be a carbon nanotube-based (CNT-based) tube array or an X-ray generating array. The X-ray generator (80X) may be referred to as a tube array tank (80X). For example, oil may be filled into the tube array tank (80X).

[0139] The center (O) of the X-ray source (80S) can be spaced a certain distance (Dy) from the bottom of the collimator (85).

[0140] The collimator (85) can limit the irradiation angle of X-rays emitted from the X-ray source (80S) and passed through the radiation port (80H) of the X-ray generator (80X) to a certain range. The collimator (85) may be a horizontal plate having a plurality of holes (85H) formed therein. For example, the collimator (85) may be made of a material such as stainless steel, copper, lead, or tungsten.

[0141]

[0142] Referring to FIGS. 25 and 26, the collimator (85) may include a plurality of holes (85H). The holes (85H) may be formed by penetrating the top and bottom of the collimator (85). The holes (85H) may be arranged in a matrix form. For example, the holes (85H) may be arranged in five rows (R1, R2, R3, R4, R5) and six columns (C1, C2, C3, C4, C5, C6). The holes (85H) may have a symmetrical structure. The holes (85H) may be symmetrical with respect to a first line (L1) passing through the center (Q) of the collimator (85). The holes (85H) may be symmetrical with respect to a second line (L2) passing through the center (Q) of the collimator (85). The first line (L1) can be extended left and right, and the second line (L2) can be extended front and back.

[0143] Each of the corner holes (85A) may be adjacent to each of the corners of the collimator (85). The first corner hole (85A1) may be adjacent to the first corner (Ca) of the collimator (85). The second corner hole (85A2) may be adjacent to the second corner (Cb) of the collimator (85). The third corner hole (85A3) may be adjacent to the third corner (Cc) of the collimator (85). The fourth corner hole (85A4) may be adjacent to the fourth corner (Cd) of the collimator (85). The corner holes (85A) may have a shape in which a part of a rectangle is cut out, and said cut-out part may face the center (Q) of the collimator (85).

[0144] The boundary of the first corner hole (85A1) may include a first side (85A11), a second side (85A12), a third side (85A13), a fourth side (85A14), and a fifth side (85A15). The first side (85A11) may be a straight side. The second side (85A12) may be connected to one end of the first side (85A11) and may be a straight side perpendicular to the first side (85A11). The third side (85A13) may be connected to the other end of the first side (85A11) and may be a straight side perpendicular to the first side (85A11). The fourth side (85A14) may be connected to the second side (85A12) and may be a straight side perpendicular to the second side (85A12). The length of the third side (85A13) may be shorter than the length of the second side (85A12), and the length of the fourth side (85A14) may be equal to or shorter than the length of the third side (85A13). The fifth side (85A15) may connect the fourth side (85A14) and the third side (85A13) and may be a slanted straight side or a curved side.

[0145] The second corner hole (85A2) may be symmetrical to the first corner hole (85A1) with respect to the second line (L2). The third corner hole (85A3) may be symmetrical to the second corner hole (85A2) with respect to the first line (L1). The fourth corner hole (85A4) may be symmetrical to the third corner hole (85A3) with respect to the second line (L2).

[0146] The outer holes (85B) may be located closer to the second line (L2) than the corner holes (85A). The first outer hole (85B1) may be positioned between the first corner hole (85A1) and the second line (L2). The second outer hole (85B2) may be positioned between the second corner hole (85A2) and the second line (L2). The third outer hole (85B3) may be positioned between the third corner hole (85A3) and the second line (L2). The fourth outer hole (85B4) may be positioned between the fourth corner hole (85A4) and the second line (L2). The outer hole (85B) may have a shape in which a portion of the rectangle is asymmetrically cut out, and the portion that is relatively more cut out may be located closer to the second line (L2).

[0147] The boundary of the first outer hole (85B1) may include a first side (85B11), a second side (85B12), a third side (85B13), a fourth side (85B14), a fifth side (85B15), and a sixth side (85B16). The first side (85B11) may be a straight side. The second side (85B12) may be connected to one end of the first side (85B11) and may be a straight side perpendicular to the first side (85B11). The third side (85B13) may be connected to the other end of the first side (85B11) and may be a straight side perpendicular to the first side (85B11). The fourth side (85B14) may be a straight side parallel to the first side (85B11). The length of the third side (85B13) may be shorter than the length of the second side (85B12), and the length of the fourth side (85B14) may be equal to or shorter than the length of the third side (85B13). The fifth side (85B15) may connect the fourth side (85B14) and the third side (85B13) and may be a slanted straight side or a curved side. The sixth side (85B16) may connect the fourth side (85B14) and the second side (85B12) and may be a slanted side or a curved side. The length of the sixth side (85B16) may be shorter than the length of the fifth side (85B15).

[0148] The second outer hole (85B2) may be symmetrical to the first outer hole (85B1) with respect to the second line (L2). The third outer hole (85B3) may be symmetrical to the second outer hole (85B2) with respect to the first line (L1). The fourth outer hole (85B4) may be symmetrical to the third outer hole (85B3) with respect to the second line (L2).

[0149] Middle holes (85C) may be located closer to the first line (L1) than the corner holes (85A). The first middle hole (85C1) may be positioned between the first corner hole (85A1) and the first line (L1). The second middle hole (85C2) may be positioned between the second corner hole (85A2) and the first line (L1). The third middle hole (85C3) may be positioned between the third corner hole (85A3) and the first line (L1). The fourth middle hole (85C4) may be positioned between the fourth corner hole (85A4) and the first line (L1). The middle holes (85C) may have a shape with the corners of the square slightly cut out.

[0150] The boundary of the first middle hole (85C1) may include a first side (85C11), a second side (85C12), a third side (85C13), a fourth side (85C14), and a fifth side (85C15). The first side (85C11) may be a straight side. The second side (85C12) may be connected to one end of the first side (85C11) and may be a straight side perpendicular to the first side (85C11). The third side (85C13) may be connected to the other end of the first side (85C11) and may be a straight side perpendicular to the first side (85C11). The fourth side (85C14) may be a straight side parallel to the first side (85C11). The length of the third side (85C13) may be shorter than the length of the second side (85C12), and the length of the fourth side (85C14) may be equal to or shorter than the length of the third side (85C13). The fifth side (85C15) may connect the fourth side (85C14) and the third side (85C13), and may be a slanted straight side or a curved side. The length of the fifth side (85C15) of the first middle hole (85C1) may be shorter than the length of the fifth side (85A15) of the first corner hole (85A1).

[0151] The second middle hole (85C2) may be symmetrical to the first middle hole (85C1) with respect to the second line (L2). The third middle hole (85C3) may be symmetrical to the second middle hole (85C2) with respect to the first line (L1). The fourth middle hole (85C4) may be symmetrical to the third middle hole (85C3) with respect to the second line (L2).

[0152] Inner holes (85D) may be located in the second line (L2). The first inner hole (85D1) may be located in the first column (C1) of the third row (R3), and the second inner hole (85D2) may be located in the sixth column (C6) of the third row (R3). The inner holes (85D) may have a shape in which two adjacent corners of a rectangle are cut out, and the portion between the cut-out parts may face the center (Q) of the collimator (85).

[0153] The boundary of the first inner hole (85D1) may include a first side (85D11), a second side (85D12), a third side (85D13), a fourth side (85D14), a fifth side (85D15), and a sixth side (85D16). The first side (85D11) may be a straight side. The second side (85D12) may be connected to one end of the first side (85D11) and may be a straight side perpendicular to the first side (85D11). The third side (85D13) may be connected to the other end of the first side (85D11) and may be a straight side perpendicular to the first side (85D11). The fourth side (85D14) may be a straight side parallel to the first side (85D11). The length of the third side (85D13) may be equal to the length of the second side (85D12), and the length of the fourth side (85D14) may be shorter than the length of the third side (85D13). The fifth side (85D15) may connect the fourth side (85D14) and the third side (85D13) and may be a slanted straight side or a curved side. The sixth side (85D16) may connect the fourth side (85D14) and the second side (85D12) and may be a slanted straight side or a curved side.

[0154] The second inner hole (85D2) can be symmetrical to the first inner hole (85D1) with respect to the first line (L1).

[0155] The center holes (85E) may be the remaining holes among the holes (85H) of the collimator (85), excluding the corner holes (85A), outer holes (85B), middle holes (85C), and inner holes (85D). The center holes (85E) may have the same shape as each other. The center holes (85E) may be square holes.

[0156]

[0157] Referring to FIGS. 26 and 27, the width of the hole (85H) of the collimator (85) may gradually increase from the top of the collimator (85) toward the bottom. FIG. 27 may be a cross-sectional view having the second line (L2) of FIG. 26 as the cut surface. Alternatively, the width of the hole (85H) may be constant (see FIG. 25).

[0158] The X-ray generator (80X) can move horizontally as described above. In response to the movement of the X-ray generator (80X), the radiation nozzle (80H) of the X-ray generator (80X) can sequentially face the holes (85H) of the collimator (85). For example, the radiation nozzle (80H) can move left and right to sequentially face the holes (85H) of the collimator (85) located in a specific column. For example, the radiation nozzle (80H) can move back and forth to sequentially face the holes (85H) of the collimator (85) located in a specific row.

[0159] For example, the initial position of the radiator (80H) may correspond to the hole (85H) in the sixth column (C6) of the first row (R1), and the radiator (80H) may move forward and sequentially face the holes (85H) of the first row (R1). Subsequently, the radiator (80H) may move one row to the left and move backward and sequentially face the holes (85H) of the second row (R2). Subsequently, the radiator (80H) may move one row to the left and move forward and sequentially face the holes (85H) of the third row (R3). Subsequently, the radiator (80H) may move one row to the left and move backward and sequentially face the holes (85H) of the fourth row (R4). Next, the radiator (80H) can move one row to the left and, while advancing, can sequentially face the holes (85H) of the fifth row (R5). That is, the final position of the radiator (80H) can correspond to the hole (85H) of the first column (C1) of the fifth row (R5), and the radiator (80H) can return to the initial position.

[0160] The detector (9) can form an effective irradiation area (9A). The effective irradiation area (9A) may be a rectangular area formed on the detector (9).

[0161] The X-ray radiator (80H) can be directed toward the detector (9) through the holes (85H) of the collimator (85). The radiator (80H) can sequentially irradiate X-rays toward the detector (9) through the holes (85H). The holes (85H) can limit the irradiation range (angle) of the X-rays from the radiator (80H) spreading out in a cone shape, and as a result, the X-rays can be irradiated into the effective irradiation area (9A) of the detector (9). In other words, regardless of the position of the radiation bulb (80H) relative to the collimator (85) (i.e., whether the radiation bulb (80H) is positioned corresponding to the edge of the collimator (85) or to the center of the collimator (85), the X-rays spread out in a cone shape from the radiation bulb (80H), but the X-rays can be irradiated into the effective irradiation area (9A) of the detector (9) by limiting the irradiation range (angle) of the X-rays irradiated from the radiation bulb (80H) by the hole (85H) having a different shape depending on the position of the collimator (85).

[0162]

[0163] Referring to FIG. 28, the base (2') of the X-ray imaging device (1) may have the shape of a generally flat rectangular block. The horizontal length (L12) of the base (2') may be larger than the vertical length (L11) of the base (2'). The ratio of the vertical length (L11) to the horizontal length (L12) may be 3:4.

[0164]

[0165] Referring to FIG. 29, the base (2) of the X-ray imaging device (1) may have the shape of a generally flat rectangular block, and a portion of the front part of the block may be cut out. The cut-out portion (2C) of the base (2) may be a U-shaped groove (2C). The horizontal length (L13) of the base (2) may be greater than the vertical length (L11) of the base (2). The horizontal length (L13) of the base (2) may be greater than the horizontal length (L12, see FIG. 28) of the base (2'). The ratio of the vertical length (L11) to the horizontal length (L13) may be 2:3. Furthermore, the front wheels (2W) may be positioned further forward than the front end of the base (2). For example, the front wheels (2W) may be positioned at least 50 mm further forward than the front end of the base (2).

[0166] Accordingly, an X-ray imaging device (1) equipped with a base (2) may be more stable than an X-ray imaging device (1) equipped with a base (2', see FIG. 28). Additionally, the usability of the X-ray imaging device (1) may be improved through the cut-out portion (2C) of the base (2). For example, a desk leg or a worker's leg may be positioned on the portion (2C) of the base (2), thereby improving the usability of the X-ray imaging device (1).

[0167]

[0168] Referring to FIGS. 1 to 29, the X-ray imaging device (1) may include: a fixed frame (802); an X-ray generator (80X) movably coupled to the fixed frame (802); a moving assembly for moving the X-ray generator (80X) in a horizontal direction; a detector (9) toward which the X-ray generator (80X) is directed; and a collimator (85) disposed between the X-ray generator (80X) and the detector (9) and having a hole (85H) through which the X-rays of the X-ray generator (80X) pass.

[0169] The above moving assembly may include: a first moving assembly (81) that moves the X-ray generator (80X) in a first direction (DR1).

[0170] The first moving assembly (81) may include: a motor (810) fixed to the fixed frame (802); a driving pulley (811) fixed to the rotating shaft of the motor (810); a driven pulley (812) spaced apart from the driving pulley (811) in the first direction (DR1); a belt (813) connecting the driving pulley (811) and the driven pulley (812); and a coupler (814) fixed to the belt (813), and the X-ray generator (80X) may be coupled to the coupler (814).

[0171] The above X-ray imaging device (1) may further include: a rail (815) that is fixed to the fixed frame (802) and extends in the first direction; and a slider (816) that is movably coupled to the rail (815), and the X-ray generator (80X) may be coupled to the slider (816).

[0172] The above moving assembly may further include a second moving assembly (82) that moves the X-ray generator (80X) in a second direction (DR2) that intersects the first direction (DR1).

[0173] The first moving assembly (81) may include a first motor (810) that provides power to move the X-ray generator (80X) in the first direction (DR1), and the second moving assembly (82) may include a second motor (820) that provides power to move the X-ray generator (80X) in the second direction (DR2).

[0174] The above X-ray imaging device (1) may further include a moving frame (83) to which the X-ray generator (80X) is coupled and which moves in the first direction (DR1) by the first moving assembly (81), and the second moving assembly (82) may include: a motor (820) fixed to the moving frame (83); a driving pulley (821) fixed to the rotating shaft of the motor (820); a driven pulley (822) spaced apart from the driving pulley (821) in the second direction (DR2); a belt (823) connecting the driving pulley (821) and the driven pulley (822); and a coupler (824) fixed to the belt (823), and the X-ray generator (80X) may be coupled to the coupler (824).

[0175] The above X-ray imaging device (1) may further include: a rail (825) fixed to the moving frame (83) and extending in the second direction (DR2); and a slider (826) movably coupled to the rail (825), and the X-ray generator (80X) may be coupled to the slider (826).

[0176] The above X-ray imaging device (1) may further include a bracket (84) fixed to the slider (826), and the X-ray generator (80X) may be fixed to the bracket (84) and the coupler (824).

[0177] The bracket (84) may include holes (841G, 842G) positioned corresponding to the motor (820), and the motor (820) may pass through the holes (841G, 842G) in response to the movement of the bracket (84).

[0178] The hole (85H) of the collimator (85) may include a plurality of holes (85H) arranged horizontally and guiding the X-rays of the X-ray generator (80X) into the detector (9).

[0179] The plurality of holes (85H) of the collimator (85) may include: a square corner hole (85A) adjacent to the corner of the collimator (85); and a corner hole (85A) in which a part of the square facing the center (Q) of the collimator (85) is cut out.

[0180] The above X-ray imaging device (1) may further include: a head (8) having the fixed frame (802), the X-ray generator (80X), the moving assembly (81), and the collimator (85); an arm connecting the head (8) and the detector (9); a body (3) to which the arm is movably coupled, wherein the body (3) has a hole (3P) through which a part of the arm passes and which extends in a vertical direction; a lift column (30S) mounted inside the body (3) and which moves the arm in a vertical direction; and a cover (31) that covers the hole (3P) of the body (3).

[0181] The above X-ray imaging device (1) may further include an insertion part (711) that is fixed to the arm and penetrates the cover (31) and is fixed to the lift column (30S); the cover (31) may be flexible and may extend along the hole (3P) of the body (3); the body (3) may include: a lower guide (31L) formed on the inner surface of the body (3) adjacent to the bottom of the cover (31) and having an inclined surface facing the internal space of the body (3); and an upper guide (31U) formed on the inner surface of the body (3) adjacent to the top of the cover (31) and having an inclined surface facing the internal space of the body (3); and the lower guide (31L) or the upper guide (31U) may guide the movement of the cover (31).

[0182] The above X-ray imaging device (1) may further include: a base (2) on which the body (3) is located; and wheels (2W) mounted on the bottom of the base (2), and the base (2) may include a groove (2C) formed in the front part of the base (2), and a portion of the wheels (2W) may be positioned further forward than the front part of the base (2).

[0183]

[0184] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0185] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.

[0186] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. Fixed frame; X-ray generator movably coupled to the above fixed frame; A moving assembly for moving the above X-ray generator in a horizontal direction; A detector toward which the above X-ray generator is directed; and, An X-ray imaging device comprising a collimator disposed between the X-ray generator and the detector and having a hole through which the X-rays of the X-ray generator pass.

2. In Paragraph 1, The above moving assembly is: X-ray imaging device comprising a first moving assembly that moves the above X-ray generator in a first direction.

3. In Paragraph 2, The above-mentioned first moving assembly is: A motor fixed to the above fixed frame; A drive pulley fixed to the rotating shaft of the above motor; A driven pulley spaced apart from the driving pulley in the first direction; A belt connecting the driving pulley and the driven pulley; and, It includes a coupler fixed to the belt, The above X-ray generator is, X-ray imaging device coupled to the above-mentioned coupler.

4. In Paragraph 3, A rail fixed to the above fixed frame and extending in the first direction; and, It further includes a slider movably coupled to the above rail, The above X-ray generator is, X-ray imaging device coupled to the above slider.

5. In Paragraph 2, The above moving assembly is: An X-ray imaging device further comprising a second moving assembly that moves the above X-ray generator in a second direction intersecting the first direction.

6. In Paragraph 5, The above-mentioned first moving assembly is: It includes a first motor that provides power to move the above X-ray generator in the first direction, and The above second moving assembly is: An X-ray imaging device comprising a second motor that provides power to move the above X-ray generator in the above second direction.

7. In Paragraph 5, The above X-ray generator is coupled and further includes a moving frame that moves in the first direction by the first moving assembly, and The above second moving assembly is: A motor fixed to the above-mentioned movable frame; A drive pulley fixed to the rotating shaft of the above motor; A driven pulley spaced apart from the driving pulley in the second direction; A belt connecting the driving pulley and the driven pulley; and, It includes a coupler fixed to the belt, The above X-ray generator is, X-ray imaging device coupled to the above-mentioned coupler.

8. In Paragraph 7, A rail fixed to the above-mentioned movable frame and extending in the above-mentioned second direction; and, It further includes a slider movably coupled to the above rail, The above X-ray generator is, X-ray imaging device coupled to the above slider.

9. In Paragraph 8, It further includes a bracket fixed to the above slider, and The above X-ray generator is, X-ray imaging device fixed to the above bracket and the above coupler.

10. In Paragraph 9, The above bracket is, It includes a hole located corresponding to the above motor, The above motor is, An X-ray imaging device that passes through the hole in response to the movement of the bracket.

11. In Paragraph 1, The hole of the above collimator is: An X-ray imaging device comprising a plurality of holes arranged horizontally and guiding the X-rays of the X-ray generator into the detector.

12. In Paragraph 11, The plurality of holes of the above collimator are: An X-ray imaging device comprising a corner hole of a square adjacent to the corner of the collimator; wherein a part of the square facing the center of the collimator is cut out into a corner hole.

13. In Paragraph 1, A head having the above fixed frame, the above X-ray generator, the above moving assembly, and the above collimator; A arm connecting the head and the detector; A body to which the above-mentioned arm is movably coupled; wherein the body has a hole through which a part of the above-mentioned arm passes and which extends in a vertical direction; A lift column mounted inside the above body and moving the arm in a vertical direction; and, An X-ray imaging device further comprising a cover covering the hole of the above body.

14. In Paragraph 13, It further includes an insert that is fixed to the above arm and penetrates the above cover to be fixed to the above lift column, and The above cover is, Extending along the hole of the above body, and flexible, The above body is: A lower guide formed on the inner surface of the body adjacent to the bottom of the cover and having an inclined surface facing the internal space of the body; and, It includes an upper guide formed on the inner surface of the body adjacent to the top of the cover and having an inclined surface facing the internal space of the body. The above lower guide or the above upper guide is, X-ray imaging device that guides the movement of the above cover.

15. In Paragraph 13, The base on which the above-mentioned body is located; and, It further includes wheels mounted on the bottom of the base, and The above base is, It includes a groove formed in the front part of the above base, and Some of the above wheels are, X-ray imaging device positioned in front of the front portion of the base.

Images