KR102722343B1 - X-ray imaging apparatus - Google Patents

Abstract

The present invention relates to an X-ray photographing device in which an X-ray source and an X-ray detector are arranged at both ends of a C-shaped arm.

Description

X-RAY IMAGING APPARATUS

The present invention relates to an X-ray photographing device in which an X-ray source and an X-ray detector are arranged at both ends of a C-shaped arm.

An X-ray machine is a device that irradiates an object to be examined with X-rays, obtains an X-ray image from the X-rays passing through the object to display the internal structure of the object.

An example of such an X-ray apparatus is an X-ray fluoroscopy apparatus, commonly referred to as a C-arm, which is used in operating rooms, emergency rooms, or other clinical settings. For example, a C-arm X-ray apparatus includes a movable mobile base, a multi-joint arm support connected to the mobile base, and a C-arm connected to the arm support, with an X-ray source and an X-ray detector mounted at each end of the C-arm to capture a fluoroscopy image of a subject positioned therebetween.

These C-arm X-ray imaging devices are designed to obtain 2D fluoroscopic images, but to determine the exact location of lesions, etc., a tomography function is required, and for this, the X-ray source must rotate and move to obtain multiple transmission images at a certain angle range of the subject.

However, in a typical C-type X-ray imaging device, the X-ray source is fixed to one end of the C-type arm, so the entire C-type arm must be rotated to obtain multiple transmission images within a certain angle range. Therefore, a complex driving mechanism is required, the shooting time is long, precision control is difficult, and the load burden due to the complex driving mechanism and the footprint may increase.

Korean Patent Publication No. 10-2016-0071938

The present invention has been made to solve the aforementioned problem, and its purpose is to provide an X-ray photographing device capable of moving and rotating only an X-ray source that is not visible from the outside in a straight line left and right with respect to a C-shaped arm.

In order to achieve the above-described object, the X-ray photographing device of the present invention comprises: a C-shaped arm; a moving plate connected to one end of the C-shaped arm; a first driving unit moving the moving plate left and right with respect to one end of the C-shaped arm; an X-ray source connected to the moving plate; a second driving unit rotating the X-ray source left and right with respect to the moving plate; and an X-ray detector disposed at the other end of the C-shaped arm, wherein the X-ray source can be moved and rotated left and right by the first and second driving units and constantly face the X-ray detector.

In addition, in the X-ray photographing device of the present invention, a support plate connected to one end of the C-shaped arm is further included, so that the first driving unit can move the moving plate left and right with respect to the support plate.

In addition, in the X-ray photographing device of the present invention, the first driving unit may include a lead screw connected to the support plate and arranged in the left-right direction; a nut connected to the moving plate and fastened to the lead screw; and a first motor that bidirectionally rotates the lead screw.

In addition, in the X-ray photographing device of the present invention, the second driving unit may include a worm connected to the moving plate; a worm wheel connected to the X-ray source and meshed with the worm; and a second motor that bidirectionally rotates the worm.

In addition, in the X-ray photographing device of the present invention, the second driving unit may include a second motor connected to the moving plate and capable of rotating in both directions; and a pulley connected to the X-ray source and connected to the second motor by a belt.

In addition, in the X-ray photographing device of the present invention, a mounting frame on which the X-ray source is mounted is further included, and the second driving unit can rotate the mounting frame left and right with respect to the moving plate.

In addition, the X-ray photographing device of the present invention may further include a movable mobile base; and an arm support connecting the mobile base and the C-shaped arm.

The X-ray photographing device of the present invention has the following effects.

Since only the X-ray source, which is invisible from the outside, can be moved left and right in a straight line and rotated about the C-arm, the shooting time is short, precise control is possible, and the overall driving mechanism can be simplified, which leads to a reduction in load and footprint.

In addition, by adopting and combining a mechanism structure that moves and rotates only the X-ray source left and right, it can be applied to Mammo (Mammography) devices that diagnose breast cancer or EOX (Extra Oral X-ray) devices that examine oral conditions.

Figure 1 is a perspective view showing the appearance of an X-ray photographing device according to an embodiment of the present invention.
Figure 2 is a perspective view with the case covering the X-ray source of Figure 1 removed.
Figure 3 is a rear perspective view of Figure 2.
Figure 4 is a back view of Figure 3.
Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.
Figure 6 is an enlarged view of part A of Figure 2.
Figure 7 is an enlarged view of part B of Figure 3.
Figure 8 is a right side view of Figure 7.
Figure 9 is an enlarged view of portion C of Figure 5.
FIG. 10 is a perspective view showing the appearance of an X-ray photographing device according to another embodiment of FIG. 2.
Figure 11 is a rear perspective view of Figure 10.
Fig. 12 is a cross-sectional view of Fig. 10.
Figure 13 is an enlarged view of part a of Figure 10.
Figure 14 is an enlarged view of part b of Figure 11.
Figure 15 is an enlarged view of portion c of Figure 12.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing symbols, identical or similar components will be given the same reference numerals and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not have distinct meanings or roles in themselves. In addition, when describing the embodiments disclosed in this specification, if it is determined that a specific description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another.

When it is said that a component is "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components in between. On the other hand, when it is said that a component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, it should be understood that terms such as “comprises” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

In the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and therefore the present invention is not necessarily limited to what is shown.

In some embodiments, where the implementation is otherwise feasible, a particular process sequence may be performed in a different order than the one described. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in a reverse order from the one described.

Meanwhile, since the present invention can be divided into several embodiments according to specific configuration and operation, each embodiment will be examined separately below. For convenience of explanation, common contents of each embodiment will be sufficiently explained through the first embodiment, and differences between other embodiments will be mainly explained.

Example 1

FIG. 1 is a perspective view showing the appearance of an X-ray photographing device (1) according to the first embodiment of the present invention.

Referring to FIG. 1, an X-ray photographing device (1) according to the first embodiment of the present invention may include a C-shaped arm (100). The C-shaped arm (100) may be composed of a C-shaped curved segment. The C-shaped arm (100) may be supported on an arm support (110). The C-shaped arm (100) may slide along an arc with respect to the arm support (110). The C-shaped arm (100) may rotate with respect to the arm support (110). The arm support (110) may be installed on a mobile base (130). An X-ray source case (700) may be installed at one end of the C-shaped arm (100). An X-ray detector (300) may be installed at the other end of the C-shaped arm (100). The arm support (110) may be in the form of a plurality of arms connected in a joint structure. The mobile base (130) can drive. The mobile base (130) can be equipped with a control unit (not shown).

FIG. 2 is a perspective view of the X-ray source case (700) of FIG. 1 with the case removed, FIG. 3 is a rear perspective view of FIG. 2, and FIG. 4 is a rear view of FIG. 3.

Referring to FIGS. 2 to 4, an X-ray photographing device (1) according to the first embodiment of the present invention may include an X-ray source (200). The X-ray source (200) may generate and irradiate X-rays. The X-ray source (200) may be placed at one end of a C-shaped arm (100).

An X-ray photographing device (1) according to the first embodiment of the present invention may include an X-ray detector (300). The X-ray detector (300) may detect X-rays that have passed through a subject. The X-ray detector (300) may be a digital X-ray detector.

Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 4, Fig. 6 is an enlarged view showing part A of Fig. 2, Fig. 7 is an enlarged view showing part B of Fig. 3, Fig. 8 is a right side view of Fig. 7, and Fig. 9 is an enlarged view showing part C of Fig. 5.

Referring to FIGS. 5 to 9, an X-ray photographing device (1) according to a first embodiment of the present invention may include a moving plate (501) connected to one end of a C-shaped arm (100), a first driving unit (400) that moves the moving plate (501) left and right with respect to one end of the C-shaped arm (100), an X-ray source (200) connected to the moving plate (501), and a second driving unit (500) that rotates the X-ray source (200) left and right with respect to the moving plate (501).

It may further include a support plate (401) connected to one end of the C-shaped arm (100). The first driving unit (400) can move the moving plate (501) left and right with respect to the support plate (401).

It may further include a mounting frame (524) on which an X-ray source (200) is mounted. The second driving unit (500) can rotate the mounting frame (524) left and right with respect to the moving plate (501).

The first driving unit (400) can move the moving plate (501) in a straight line left and right (z-axis) with respect to one end of the C-shaped arm (100). The first driving unit (400) may include a mechanism that converts a rotational motion (such as a lead screw, cam, pinion, etc.) into a linear motion (such as a nut, piston, rack, etc.). For example, in this embodiment, the first driving unit (400) may be configured by a combination of a lead screw (410) and a nut (420).

Referring to FIG. 7, the first driving unit (400) may include a lead screw (410). The lead screw (410) may have a male thread formed on the outer surface of the shaft. The lead screw (410) may be rotatably supported by a bearing unit (411). The bearing unit (411) may be installed on the lower left and right sides of the support plate (401). The upper side of the support plate (401) may be supported by one end of a C-shaped arm (100).

The first driving unit (400) may include a nut (420). The nut (420) may be fastened to the lead screw (410). The nut (420) may be mounted on the moving plate (501). The nut (420) may be a slider that moves linearly left and right according to the rotational direction of the lead screw (410).

The nut (420) may include a limit switch. The limit switch may be a switch that opens and closes an electrical contact when a part of a mechanical component or an object comes to a predetermined position. The limit switch may be composed of a mechanical limit switch, a beam-type limit switch, or a proximity switch. The limit switch of the present embodiment may be composed of a proximity switch. The proximity switch may operate the switch when an object approaches a certain distance using magnetism, electric capacity, electromagnetic induction, or the like. Referring to FIG. 7, the proximity switch (421) may include a first proximity switch (421a). The first proximity switch (421a) may be installed on the left and right sides of the support plate (401). The proximity switch (421) may include a second proximity switch (421b). The second proximity switch (421b) may be installed on the nut (420). The second proximity switch (421b) can be installed on the upper surface of the nut (420). When the first proximity switch (421a) detects the second proximity switch (421b), the nut (420) can be stopped.

The first driving unit (400) may include a first rotational power transmission unit (430). The first rotational power transmission unit (430) may provide rotational power to the lead screw (410).

Referring to FIGS. 6 and 7, the first rotational power transmission unit (430) may include a first motor (431). The first motor (431) may be installed in a first bracket (402). The first bracket (402) may have an L-shape. The first bracket (402) may include first left and right plates (403). The first left and right plates (403) may be installed and supported by a support plate (401). The first bracket (402) may include first front and rear plates (404). The first front and rear plates (404) may support the first motor (431). The first front and rear plates (404) may have a through hole (405) formed therein. The through hole (405) allows the rotation axis of the first motor (431) to pass through. The first left and right plates (403) and the first front and rear plates (404) may have shapes that are perpendicular to each other.

The first rotary power transmission unit (430) may include a first driving pulley (432). The first driving pulley (432) may be coupled to the rotational axis of the first motor (431).

The first rotary power transmission unit (430) may include a first driven pulley (433). The first driven pulley (433) may be coupled to one side of the lead screw (410).

The first rotary power transmission unit (430) may include a first belt (434). The first belt (434) may be spanned across the first driving pulley (432) and the first driven pulley (433). When the first driving pulley (432) and the first driven pulley (433) are toothed pulleys, the first belt (434) may be configured as a timing belt.

Referring to FIGS. 5 to 9, an X-ray photographing device (1) according to a first embodiment of the present invention may include a second driving unit (500). The second driving unit (500) may rotate an X-ray source (200) about the front and rear (x-axis) of one end of a C-shaped arm (100). The second driving unit (500) may include a direct power transmission mechanism that converts a rotational motion into a rotational motion. The direct power transmission mechanism of the first embodiment may be, for example, configured as a combination of a worm (510) and a worm wheel (520).

The second driving unit (500) may include a worm (510). The worm (510) may be arranged with the z-axis as the center of rotation. The worm (510) may have a spiral tooth formed on the outer surface of the shaft. Referring to FIG. 6, the worm (510) may be rotatably supported by left and right bearing units (511). The bearing units (511) may be installed on left and right brackets (506). A connecting block (507) may be installed transversely on the front of the left and right brackets (506). The rear surfaces of the left and right brackets (506) may be installed on the front of the moving plate (501).

Referring to FIG. 9, the second driving unit (500) may include a worm wheel (520). The worm wheel (520) may be meshed with the worm (510). The worm wheel (520) may be arranged with the x-axis as the rotation center.

The worm wheel (520) may be fixed to a shaft (521) in the forward/backward (x) direction. Both ends of the shaft (521) may be rotatably supported by front/back bearing parts (522)(523). The front bearing part (522) may be installed on the lower side of the connecting block (507). In this case, the connecting block (507) may be configured as a T-shaped plate. The rear bearing (523) may be installed on the front side of the moving plate (501). A mounting frame (524) may be installed at the front end of the shaft (521). The mounting frame (524) may include a base plate (525). An X-ray source (200) may be mounted on the base plate (525). The mounting frame (524) may include a rear wall (526). The rear wall (526) may be installed on the rear side of the base plate (525). The rear wall (526) may have the tip of the shaft (521) fixed thereto. The base plate (525) may include a limit switch (527) which is a proximity sensor. Referring to FIG. 9, the limit switch (527) may include a first limit switch (527a). The first limit switch (527a) may be installed on the lower side of the base plate (525). The limit switch (527) may include a second proximity switch (527b). The second proximity switch (527b) may be supported on the lower side of the connection block (507). When the second proximity switch (527b) detects the first proximity switch (577a), the worm (510) and the worm wheel (520) may stop.

The second driving unit (500) may include a second rotational power transmission unit (530). The second rotational power transmission unit (530) may provide rotational power to the worm (510).

Referring to FIG. 8, the second rotational power transmission unit (530) may include a second motor (531). The second motor (531) may be installed in a second bracket (502). The second bracket (502) may have an L-shape. The second bracket (502) may include second left and right plates (503). The second left and right plates (503) may be installed and supported on the front of the moving plate (501). The second bracket (502) may include second front and rear plates (504). The second front and rear plates (504) may support the second motor (531). The second front and rear plates (504) may have a through hole (505) formed therein. The through hole (505) allows the rotation axis of the second motor (531) to pass through. The second left and right plates (503) and the second front and rear plates (504) may have shapes that are perpendicular to each other.

The second rotary power transmission unit (530) may include a second driving pulley (532). The second driving pulley (532) may be coupled to the rotational axis of the second motor (531).

The second rotary power transmission unit (530) may include a second driven pulley (533). The second driven pulley (533) may be coupled to one side of the worm (510).

The second rotational power transmission unit (530) may include a second belt (534). The second belt (534) may be spanned across the second driving pulley (532) and the second driven pulley (533). When the second driving pulley (532) and the second driven pulley (533) are differential pulleys, the second belt (534) may be configured as a timing belt. Accordingly, the second belt (534) may indirectly transmit the rotational power of the second driving pulley (532) to the second driven pulley (533).

Meanwhile, the first driving unit (400) of the present embodiment can support the second driving unit (500) so as to be able to move left and right.

That is, the support plate (401) can have a long hole (406) formed on the left and right sides. The hole (406) can be formed between the left and right bearing parts (411). The nut (420) can be installed and supported on the back surface of the moving plate (501) through the long hole (406). The nut (420) can move along the long hole (406).

A guide part (600) may be installed between the support plate (401) and the moving plate (501). The guide part (600) may additionally support the moving plate (501) while guiding the left and right movement. The guide part (600) may be composed of an LM guide.

The guide part (600) may include a guide rail (610). The guide rail (610) may be installed on the upper front surface of the support plate (401).

The guide part (600) may include a guide block (620). The guide block (620) may be installed on the upper rear surface of the moving plate (501). The guide block (620) may be slidably assembled to the guide rail (610).

The above X-ray source (200), the first driving unit (400), and the second driving unit (500) can be accommodated inside a case (700) as shown in Fig. 1. The case (700) can be installed at one end of a C-shaped arm (100).

Therefore, the X-ray photographing device (1) of the present embodiment can provide an optimized mechanism structure in which only the X-ray source (200), which is not visible from the outside, can move left and right along the z-axis and rotate around the x-axis within the case (700) while the case (700) is fixed. Of course, a transmission section through which X-rays can be transmitted can be formed on the lower surface of the case (700).

Second embodiment

The second embodiment of the present invention is similar in structure and function to the first embodiment, but unlike the second drive unit (500') of the first embodiment, the second drive unit (500) of the second embodiment adopts an indirect power transmission mechanism (pulley and belt) instead of a direct power transmission mechanism (worm mechanism).

Hereinafter, the same reference numerals are given to the same parts as in the first embodiment and detailed descriptions are omitted.

FIG. 10 is a perspective view showing the appearance of an X-ray photographing device (1') according to another embodiment of FIG. 2, FIG. 11 is a rear perspective view of FIG. 10, and FIG. 12 is a cross-sectional view of FIG. 10.

Referring to FIGS. 10 and 11, an X-ray photographing device (1') according to a second embodiment of the present invention may include, similar to the first embodiment, a C-shaped arm (100), an arm support (110) on which the C-shaped arm (100) is slidably supported along an arc, and a mobile base (130) on which the arm support (110) is installed.

An X-ray photographing device (1') according to the second embodiment of the present invention may include an X-ray source (200), similar to the first embodiment.

An X-ray photographing device (1') according to the second embodiment of the present invention may include an X-ray detector (300), similar to the first embodiment.

Fig. 13 is an enlarged view of part a of Fig. 10, Fig. 14 is an enlarged view of part b of Fig. 11, and Fig. 15 is an enlarged view of part c of Fig. 12.

Referring to FIGS. 13 to 15, an X-ray photographing device (1') according to a second embodiment of the present invention may include a first driving unit (400) similar to the first embodiment. The first driving unit (400) may include a lead screw (410), a nut (420) fastened to the lead screw (410), a first motor (431), a first driving pulley (432) that receives rotational power from the first motor (431), a first driven pulley (433) that transmits rotational power to the lead screw (410), and a first belt (434) that spans the first driving pulley (432) and the first driven pulley (433).

Referring to FIGS. 13 to 15, an X-ray photographing device (1') according to a second embodiment of the present invention may include a second driving unit (500'). The second driving unit (500') may rotate the X-ray source (200) around the front and rear (x-axis) of one end of a C-shaped arm (100). The second driving unit (500') may include an indirect power transmission mechanism that converts a rotational motion into a rotational motion. The indirect power transmission mechanism of the second embodiment, for example, the second driving unit (500') may be configured by a combination of a pulley and a belt.

The second driving unit (500') may include a second motor (510'). The second motor (510') may be installed in a second bracket (502'). The second bracket (502') may have an L-shape. The second bracket (502') may include a second horizontal plate (503'). The rear end of the second horizontal plate (503') may be installed and supported on the upper end of the support plate (501'). The second bracket (502') may include a second vertical plate (504'). The second vertical plate (504') may be installed at the front end of the second horizontal plate (203'). The second vertical plate (504') may have a through hole (505') formed therein. The through hole (505') allows the rotation axis of the second motor (510') to pass through. The horizontal plate (503') and the second vertical plate (504') may have mutually perpendicular shapes. The bottom of the second horizontal plate (503') may be further supported by a support piece (506'). The support piece (506') may be installed on the front of the support plate (501').

The second driving unit (500') may include a second driving pulley (530'). The second driving pulley (530') may be installed on the rotational axis of the second motor (510). The second driving pulley (530') may receive the rotational power of the second motor (510').

The second driving unit (500') may include a second driven pulley (550'). The second driven pulley (550') may be installed on the rear wall (526'). Referring to FIG. 15, the rear wall (526') may be rotatably supported on the support plate (501'). A bearing unit (517') may be installed at the center of rotation of the rear wall (526'). The bearing unit (517') may be supported on a support shaft (518') that is fixed to the support plate (501'). That is, the support shaft (518') may be installed between the bearing unit (517') and the moving plate (501').

Referring to FIG. 13 and FIG. 15, the second passive pulley (550') may include a limit switch (527') which is a proximity sensor. The limit switch (527') may include a first limit switch (527a'). The first limit switch (527a') may be installed on the second passive pulley (550'). The limit switch (527') may include a second proximity switch (527b'). The second proximity switch (527b') may be supported on the front side of the rear plate (526'). When the second proximity switch (527b') detects the first proximity switch (577a'), the second passive pulley (550') may stop.

The second driving unit (500') may include a second belt (570'). The second belt (570') may be spanned across the second driving pulley (530') and the second driven pulley (550'). Therefore, the second belt (570') may indirectly transmit the rotational power of the second driving pulley (530') to the second driven pulley (550). When the second driving pulley (530') and the second driven pulley (550') are differential pulleys, the second belt (570') may be configured as a timing belt.

Meanwhile, the first driving unit (400) of the present embodiment can support the second driving unit (500') so as to be able to move left and right.

That is, as the nut (420) moves left and right through the hole (406) of the support plate (401), the second driving unit (500') can also move together.

A guide part (600) may be installed between the support plate (401) and the moving plate (501'). The guide part (600) may include a guide rail (610) of the support plate (401) and a guide block (620) of the moving plate (501').

The above X-ray source (200), the first driving unit (400) and the second driving unit (500') can be accommodated inside a case (700) as shown in Fig. 1. The case (700) can be installed at one end of a C-shaped arm (100).

Therefore, the X-ray photographing device (1') of the present embodiment can provide an optimized mechanism structure in which only the X-ray source (200), which is not visible from the outside, can move left and right along the z-axis and rotate around the x-axis within the case (700) while the case (700) is fixed. Of course, a transmission section through which X-rays can be transmitted can be formed on the lower surface of the case (700).

Any or all of the embodiments of the present invention described above are not mutually exclusive or distinct. Any or all of the embodiments of the present invention described above may have their respective components or functions combined or used together.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. The above detailed description should not be construed in all respects as limiting but as illustrative. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are intended to be included in the scope of the present invention.

100: C-type cancer 200: X-ray source
300: X-ray detector 400: 1st driving unit
410 : Lead Screw 420 : Nut
430: 1st rotary power transmission unit 431: 1st motor
432: 1st driving pulley 433: 1st driven pulley
434: 1st belt 500: 2nd drive unit (worm-worm wheel)
510 : Worm 520 : Worm wheel
530: Second rotary power transmission unit 531: Second motor
532: 2nd driving pulley 533: 2nd driven pulley
534: 2nd belt 510': 2nd motor
530' : 2nd driving pulley 550' : 2nd driven pulley
570': 2nd belt 500': 2nd drive (pulley-belt)
510': 2nd motor 530': 2nd drive pulley
550' : 2nd passive pulley 570' : 2nd belt

Claims (7)

Type C cancer;
A movable plate connected to one end of the above C-shaped arm;
A first driving unit for moving the above moving plate linearly left and right with respect to one end of the C-shaped arm;
An x-ray source connected to the above moving plate;
A second driving unit for rotating the X-ray source left and right with respect to the moving plate;
An X-ray detector placed at the other end of the C-type arm; and
Including a case installed at one end of the C-shaped arm and accommodating the X-ray source and the first and second driving units,
An X-ray photographing device in which the X-ray source is moved and rotated by the first and second driving units inside the case so that the movement and rotation are not visible from the outside and is constantly facing the X-ray detector.
In claim 1,
Including further a support plate connected to one end of the above C-shaped arm,
The above first driving unit is an X-ray photographing device that moves the moving plate left and right with respect to the support plate.
In claim 2,
The above first driving unit is,
A lead screw connected to the above support plate and arranged in the left and right directions;
A nut connected to the above moving plate and fastened to the lead screw;
An X-ray imaging device comprising a first motor for bidirectionally rotating the lead screw.
In claim 1,
The above second driving unit,
A worm connected to the above moving plate;
A worm wheel connected to the above X-ray source and meshed with the worm;
An X-ray imaging device comprising a second motor for rotating the worm in both directions.
In claim 1,
The above second driving unit,
A second motor connected to the above moving plate and capable of rotating in both directions;
An X-ray photographing device comprising a pulley connected to the X-ray source and connected by a belt to the second motor.
In clause 4 or 5,
Further including a mounting frame on which the above X-ray source is mounted,
An X-ray photographing device in which the second driving unit rotates the mounting frame left and right relative to the moving plate.
In paragraph 1,
Movable mobile base;
An X-ray photographing device further comprising an arm support connecting the mobile base and the C-shaped arm.

Images