Portable x-ray imaging apparatus

Abstract

The present invention relates to a portable X-ray imaging device comprising: a main body: an X-ray source installed inside the main body; an optical camera, disposed on one side on the outer perimeter of the front end of the main body, for capturing a real image of an object being imaged; a thermal-imaging camera, disposed on the other side of the outer perimeter of the front end of the main body to be close to the optical camera, for capturing a thermal image of the object being imaged; a display unit, installed on the top surface of the main body, for displaying images captured by the optical camera and thermal-imaging camera; and a control unit for controlling operations of the X-ray source, optical camera, thermal-imaging camera, and display unit.

Description

portable X-ray device

[0001] The present invention relates to a portable X-ray photographing device, and more particularly, to a portable X-ray photographing device that allows a user to take an X-ray photograph while holding it in his / her hand and freely changing the photographing position and posture.

[0002]

[0003] X-ray equipment typically used in hospitals is large and heavy, requiring installation in its original location. This equipment not only takes up a lot of space, but also has limited freedom in changing imaging positions and postures.

[0004] Therefore, a portable X-ray imaging device with a size and weight that allows the user to freely change the position while holding it in his / her hand was developed.

[0005] These portable X-ray devices are mainly used in dental hospitals to take dental X-rays.

[0006] In this case, the portable X-ray photographing device includes a translucent, roughly circular blocking plate containing lead oxide material formed at a predetermined distance back from the front end to block backscattering of X-rays. At this time, there was a problem in that the blocking plate blocked the user's view during the alignment step of the oral sensor and the portable X-ray photographing device for X-ray photography.

[0007] Accordingly, recently, a portable X-ray imaging device has been developed that has an optical camera and a display unit to display the front image of the device on the display unit, thereby eliminating the phenomenon of the field of view being blocked by the blocking plate.

[0008] Meanwhile, when dental hospitals use portable X-ray devices to take pictures of the inside of a patient's mouth, they also use an X-ray detection plate called an intraoral sensor. At this time, the portable X-ray device is positioned outside the patient's face and then shoots X-rays toward the intraoral sensor, which performs the shooting function.

[0009] However, since the oral sensor of the conventional portable X-ray shooting device is located inside the patient's mouth and is not visible from the outside, the user (the person performing the shooting) had no choice but to take the X-ray while guessing the position of the oral sensor by feel. Therefore, the conventional portable X-ray shooting device had a problem in that it could not accurately obtain an X-ray image of a desired position if the X-ray irradiation direction was not accurate. In other words, the conventional portable X-ray shooting device had a disadvantage in that obtaining an oral X-ray image of an accurate position depended on the user's skill.

[0010] The prior art is technical information that the inventor possessed for the purpose of deriving the present invention or acquired in the process of deriving the present invention, and cannot necessarily be said to be publicly known technology disclosed to the general public prior to the application for the present invention.

[0011]

[0012] <Prior Art Literature>

[0013] (Patent Document 1) Republic of Korea Patent Publication No. 10-2000-0050040 (published on August 5, 2000)

[0014]

[0015] In order to solve the above-mentioned problems, the purpose of the present invention is to provide a portable X-ray photographing device that can accurately irradiate X-rays toward an oral sensor, thereby enabling more accurate photographing of a desired location.

[0016] The problems to be solved by the present invention are not limited to those mentioned above, and other problems to be solved that are not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0017]

[0018] A portable X-ray photographing device according to an embodiment of the present invention comprises: a main body having an X-ray irradiation window formed at a front end; an X-ray source installed inside the main body; an optical camera installed on one side of the outer circumference of the front end of the main body and capturing a real image of a subject; a thermal imaging camera installed adjacent to the optical camera on the other side of the outer circumference of the front end of the main body and capturing a thermal image of the subject; a display unit installed on an upper surface of the main body and displaying images captured by the optical camera and the thermal imaging camera; and a control unit controlling the operation of the X-ray source, the optical camera, the thermal imaging camera, and the display unit.

[0019] In this case, the optical camera and the thermal imaging camera can be installed at the upper center of the front end of the main body.

[0020] At this time, the optical camera and the thermal imaging camera may be installed with an installation angle (α) tilted forward with respect to a plane perpendicular to the X-ray irradiation direction of the X-ray source.

[0021] In this case, it is desirable that the installation angle (α) have a range of more than 0° and less than 30°.

[0022] Meanwhile, the display unit may be configured to display a real image captured by the optical camera as is.

[0023] Additionally, the display unit may be configured to display a thermal image captured by the thermal imaging camera as is.

[0024] Meanwhile, the control unit may be configured to create an overlapping image by overlapping a real image captured by the optical camera and a thermal image captured by the thermal imaging camera, and the display unit may be configured to display the overlapping image.

[0025] In this case, the optical camera generates real image data of the face of a patient who has the oral sensor in his mouth, the thermal imaging camera generates thermal image data of the face of a patient who has the oral sensor in his mouth, the control unit uses the real image data and the thermal image data to superimpose a real image of the patient's face and a thermal image of the patient's face, thereby generating the superimposed image in which the oral sensor is displayed on the real image of the patient's face, and the display unit can be configured to display the superimposed image.

[0026] In this case, the control unit may be configured to reduce the resolution of the patient's facial real image and the patient's facial thermal image and then superimpose the two images.

[0027] In addition, the control unit may be configured to specify a plurality of points in the real image of the patient's face, specify a plurality of identical points corresponding to the plurality of points in the thermal image of the patient's face, and superimpose the real image of the patient's face and the thermal image of the patient's face in a manner that matches the plurality of points specified in the real image of the patient's face with the plurality of points specified in the thermal image of the patient's face.

[0028] At this time, the multiple points specified in the patient's facial real-time image or the multiple points specified in the patient's facial thermal image may be three points corresponding to the center points of both eyes of the patient and the apex of the nose.

[0029] Meanwhile, the control unit may be configured to superimpose a real image of the patient's face and a thermal image of the patient's face, the remaining portion of which is made transparent except for the oral sensor portion.

[0030] In this case, the control unit may be configured to display the oral sensor portion in a specific color.

[0031] Additionally, the control unit may be configured to display an outline on the oral sensor portion.

[0032]

[0033] As described above, the portable X-ray photographing device according to the present invention can accurately irradiate X-rays toward the oral sensor, thereby enabling more accurate photographing of a desired location.

[0034] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the following description.

[0035]

[0036] FIG. 1 is a perspective view schematically showing the appearance of a portable X-ray imaging device according to an embodiment of the present invention.

[0037] FIG. 2 is a drawing schematically showing the configuration of a portable X-ray imaging device according to an embodiment of the present invention.

[0038] FIG. 3 is a drawing schematically showing the configuration of a portable X-ray imaging device according to an embodiment of the present invention from a different perspective from FIG. 2.

[0039] FIG. 4 is a drawing schematically showing an example of a control sequence of a control unit, which is a component of a portable X-ray imaging device according to an embodiment of the present invention.

[0040] FIG. 5 is a drawing schematically showing an example of a thermal image captured by a thermal imaging camera, which is a component of a portable X-ray imaging device according to an embodiment of the present invention.

[0041]

[0042] <Explanation of symbols>

[0043] 10: Main body 11: X-ray examination window

[0044] 12: Handle 13: Power supply

[0045] 14: Blocking board

[0046] 20: X-ray source

[0047] 30: Control unit

[0048] 40: Power

[0049] 50: Optical camera

[0050] 60: Display section

[0051] 70: Thermal imaging camera

[0052] 100: Oral Sensor

[0053]

[0054] The accompanying drawings of the present invention may be illustrated with exaggerated expressions for the purpose of differentiation and clarity from prior art, as well as for the convenience of understanding the technology. Furthermore, the terms described below are defined in consideration of their functions in the present invention and may vary depending on the intentions or practices of users and operators. Therefore, the definitions of these terms should be based on the technical content throughout this specification. Furthermore, the embodiments are merely exemplary of the components set forth in the claims of the present invention and do not limit the scope of the rights of the present invention. The scope of rights should be interpreted based on the technical concepts throughout the specification of the present invention.

[0055] Throughout the specification, when a configuration is said to "include" another configuration, this does not mean that it excludes other configurations, but rather that it may include other configurations, unless otherwise specifically stated.

[0056] Furthermore, when we say that a configuration is "connected," "connected," or "coupled" to another configuration, this does not only mean that it is "directly connected," "directly connected," or "directly coupled," but also that it may be "connected with another configuration in between," "connected with another configuration in between," or "coupled with another configuration in between." On the other hand, when we say that a configuration is "directly connected," "directly connected," or "directly coupled" to another configuration, it should be understood that there is no other configuration in between.

[0057] In addition, when directional terms such as “front,” “back,” “upper,” “lower,” “left,” “right,” “one end,” “the other end,” “both ends,” etc. are used, they are used illustratively in relation to the orientation of the disclosed drawings and should not be construed limitingly, and when terms such as “first,” “second,” etc. are used, they are used as terms to distinguish each configuration and should not be construed limitingly.

[0058] To more clearly explain the features of the embodiments of the present invention, detailed descriptions of matters commonly known to those of ordinary skill in the art to which the embodiments pertain will be omitted. Furthermore, detailed descriptions of portions of the drawings that are unrelated to the description of the embodiments will be omitted.

[0059] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0060]

[0061] FIG. 1 is a perspective view schematically showing the appearance of a portable X-ray imaging device according to an embodiment of the present invention, FIG. 2 is a drawing schematically showing the configuration of a portable X-ray imaging device according to an embodiment of the present invention, FIG. 3 is a drawing schematically showing the configuration of a portable X-ray imaging device according to an embodiment of the present invention from a different viewpoint from FIG. 2, FIG. 4 is a drawing schematically showing an example of a control sequence of a control unit which is a component of a portable X-ray imaging device according to an embodiment of the present invention, and FIG. 5 is a drawing schematically showing an example of a thermal image captured by a thermal imaging camera which is a component of a portable X-ray imaging device according to an embodiment of the present invention.

[0062]

[0063] Referring to FIGS. 1 to 5, a portable X-ray photographing device according to an embodiment of the present invention includes a main body (10), an X-ray source (20), an optical camera (50), a thermal imaging camera (70), a display unit (60), and a control unit (30).

[0064]

[0065] The above main body (10) is the main component of the device and provides installation locations for other components inside and outside. In this case, the X-ray source (20) and the control unit (30) are installed inside the main body (10), and the optical camera (50), the thermal imaging camera (70), and the display unit (60) are installed on the outside of the main body (10) or are installed on the inside but are installed in a state where they are exposed to the outside surface.

[0066] The above main body (10) has an X-ray irradiation window (11) formed at its front end. The irradiation window (11) is formed in a structure that allows X-rays to pass through but prevents foreign substances from penetrating into the internal space of the main body (10). The X-ray irradiation window (11) may be made of a translucent or opaque plastic material.

[0067] A handle portion (12) protruding at a predetermined angle is formed at the lower rear portion of the main body (10), and a power supply portion (13) having a built-in power supply (40) (battery) is formed in an extended manner at the lower portion of the handle portion (12). The battery may be a lithium-based cell, and may be provided so as to be rechargeable by connecting an external power supply.

[0068] A blocking plate (14) having a roughly circular shape is formed at a predetermined distance rearward from the front end of the main body (10) and protrudes outward from the entire circumference of the main body (10). The blocking plate (14) serves to block X-rays that are backscattered toward the user when X-rays are irradiated.

[0069]

[0070] The above X-ray source (20) is installed inside the main body (10).

[0071] The above X-ray source (20) is installed facing the X-ray irradiation window (11).

[0072] The above X-ray source (20) is for generating X-rays, and an X-ray source such as an X-ray tube type or a thermal electron source type can be applied. Since the detailed configuration of the above X-ray source (20) is not the gist of the present invention, a detailed description and detailed drawing are omitted.

[0073] The operation of the above X-ray source (20) can be controlled by the control unit (30). However, the user can select a menu displayed on the display unit (60) by using a screen touch method, a button (not shown), or a jog dial (not shown) operation method and transmit a control command to the control unit (30).

[0074]

[0075] The above optical camera (50) is installed on one side of the outer periphery of the front end of the main body (10) and is configured to capture a real image of the subject.

[0076] The optical camera (50) above is a camera that detects light reflected from a subject to obtain an image of the subject, and may use a CCD (Charge-Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor) as an image sensor. The image sensor converts light entering the camera into a digital signal (real image data). The real image data may be transmitted to the display unit (60) through the control unit (30) or directly to be displayed as an image, and the image is a color real image (an image that captures the external appearance as it is). That is, the optical camera (50) captures the patient's face in the same way as if it were seen with the naked eye, and the image may be displayed on the display unit (60).

[0077]

[0078] The above thermal imaging camera (70) is installed adjacent to the optical camera (50) on the outer peripheral side of the front end of the main body (10), and is configured to capture a thermal image of a subject.

[0079] The above thermal imaging camera (70) is a camera that visualizes infrared rays (heat rays) emitted by a subject and creates an image using an infrared sensor. The above thermal imaging camera (70) can identify objects regardless of the presence or absence of lighting, and can also identify objects behind various obstacles that cannot be seen with the naked eye.

[0080] Thermal image data captured by the thermal imaging camera (70) can be transmitted to the display unit (60) through the control unit (30) or directly to be displayed as a thermal image.

[0081] FIG. 5 is an example of a thermal image taken of the face of a patient holding an oral sensor (100) in the mouth using the thermal imaging camera (70). The oral sensor (100) is not visible in the real image because it has a relatively lower temperature than the patient's face, but is displayed in a clearly identifiable state in the thermal image.

[0082]

[0083] The optical camera (50) and the thermal imaging camera (70) are installed on one side of the end circumference of the main body (10) as shown in FIGS. 1 and 2. More specifically, it is preferable that the optical camera (50) and the thermal imaging camera (70) are installed at the upper center of the front end circumference of the main body (10). This installation structure aligns the directionality of the X-ray image and the real image or thermal image (the upper, lower, left, and right boundaries of each image or the center point of each image).

[0084] In this case, the optical camera (50) and the thermal imaging camera (70) can be installed in the lower central portion around the front end of the main body (10), and this structure can be said to be a change within the same range as the structure installed in the upper central portion described above.

[0085] In addition, it is preferable that the optical camera (50) and the thermal imaging camera (70) be installed close to each other so that the shooting angle for the subject (patient's face) and the size of the shooting image can be matched as much as possible without correction in each shooting image. In the illustrated example, the optical camera (50) is positioned at the bottom and the thermal imaging camera (70) is installed adjacent to the top thereof, but the vertical positional relationship may be reversed. In addition, it goes without saying that the optical camera (50) and the thermal imaging camera (70) can be installed adjacent to each other in the left and right directions at the upper central portion or the lower central portion of the end periphery of the main body (10).

[0086] Meanwhile, one of the optical camera (50) and the thermal imaging camera (70) may be installed in the upper central portion of the front end periphery of the main body (10) and the other may be installed in the lower central portion of the front end periphery of the main body (10), and this structure may also be considered a change within the same range as the structure installed adjacent to the upper central portion or the lower central portion described above.

[0087] The optical camera (50) and the thermal imaging camera (70) are installed in a state where they have an installation angle (α) that is inclined forward with respect to a plane perpendicular to the X-ray irradiation direction of the X-ray source (20). That is, the optical camera (50) and the thermal imaging camera (70) have an installation angle (α) that is inclined forward at a predetermined angle with respect to the same plane as the X-ray irradiation window (11). Accordingly, the center of the X-ray irradiation area (range) and the center of the photographing area (range) of the optical camera (50) and the thermal imaging camera (70) can be matched without correction or the amount of correction can be minimized.

[0088] It is preferable that the installation angle (α) expressing the degree to which the optical camera (50) and the thermal imaging camera (70) are tilted forward has a range of more than 0° and less than 30°. The reason for setting this range is that when the installation angle (α) is 0°, the X-ray irradiation direction and the shooting direction of the optical camera (50) and the thermal imaging camera (70) become parallel to each other, so it is impossible to align the center of the X-ray irradiation area (range) and the center of the shooting area (range) of the optical camera (50) and the thermal imaging camera (70), and when the installation angle (α) is 30° or more, the optical camera (50) and the thermal imaging camera (70) are tilted excessively forward to a degree that is inappropriate for the effective shooting distance between the front end of the device and the patient's face, which has been experimentally confirmed to be valid, so it is impossible to align the center of the irradiation area (range) and the center of the shooting area (range).

[0089]

[0090] The above display unit (60) is installed on the upper surface of the main body (20) and is configured to display images captured by the optical camera (50) and the thermal imaging camera (70).

[0091] The above display unit (60) is a general color screen such as an LCD (Liquid Crystal Display) or an OLED (Organic Light Emitting Diodes), and basically displays operation menus for using a portable X-ray imaging device. As described above, selection of the above operation menus can be made by operating a separately provided button or jog dial, and since the display unit (60) is formed as a touch screen, selection by direct touch is also possible.

[0092] The display unit (60) may be configured to display the real image captured by the optical camera (50) as is. In addition, the display unit (60) may be configured to display the thermal image captured by the thermal imaging camera (70) as is. That is, the display unit (60) may receive shooting data directly from the optical camera (50) and the thermal imaging camera (70) or through the control unit (30) to display the real image and the thermal image.

[0093] In addition, the display unit (60) can display a superimposed image of a real image and a thermal image, which will be described below.

[0094]

[0095] The above control unit (30) is configured to control the overall operation of the X-ray source (20), the optical camera (50), the thermal imaging camera (70), and the display unit (60) according to the user's operation menu selection (selected by operating a button or jog dial or by touching the display screen).

[0096] The above control unit (30) may be configured to create the superimposed image by superimposing the real image captured by the optical camera (50) and the thermal image captured by the thermal imaging camera (70), and the display unit (60) may be configured to display the superimposed image.

[0097] More specifically, the optical camera (50) generates real image data of the face of a patient who has the oral sensor (100) in his mouth, the thermal imaging camera (70) generates thermal image data of the face of a patient who has the oral sensor (100) in his mouth, and the control unit (30) uses the real image data and the thermal image data to superimpose a real image of the patient's face and a thermal image of the patient's face, thereby generating the superimposed image in which the oral sensor (100) is displayed on the real image of the patient's face, and the display unit (60) can be configured to display the superimposed image.

[0098] In this case, the control unit (30) may be configured to reduce the resolution of the patient's facial real image and the patient's facial thermal image when generating the overlapping image and then overlay the two images.

[0099] In addition, the control unit (30) may be configured to superimpose the patient's facial real image and the patient's facial thermal image in such a manner that a plurality of points are specified in the patient's facial real image, the same plurality of points corresponding to the plurality of points are specified in the patient's facial thermal image, and the plurality of points specified in the patient's facial real image and the plurality of points specified in the patient's facial thermal image are matched with each other.

[0100] At this time, the multiple points specified in the patient's facial real-time image or the multiple points specified in the patient's facial thermal image may be three points corresponding to the center points of both eyes of the patient and the apex of the nose.

[0101] Meanwhile, the control unit (30) may be configured to superimpose a real image of the patient's face and a thermal image of the patient's face, with the remaining portions being transparent except for the oral sensor (100) portion.

[0102] In this case, the control unit (30) may be configured to display the oral sensor (100) portion in a specific color.

[0103] In addition, the control unit (30) may be configured to display an outline (a line displayed along the outer edge of the shape of the oral sensor (100)) on the oral sensor (100) portion.

[0104] Hereinafter, the control unit (30) will be described in terms of control performance.

[0105] As illustrated in Fig. 4, the control unit (30) performs an optical camera shooting step (S10), a thermal imaging camera shooting step (S20), and an image superimposition step (S30). In this case, the control unit (30) may further perform an oral sensor highlighting step (S40) after the image superimposition step (S30).

[0106] The optical camera photographing step (S10) is a step in which the control unit (30) uses the optical camera (50) to photograph the face of a patient who has the oral sensor (100) in their mouth. The real image data generated in the optical camera photographing step (S10) can be transmitted to the display unit (60) through the control unit (30) or directly to be displayed as a real image and is stored in a memory, which is a component of the control unit (30).

[0107] The above thermal imaging camera shooting step (S20) is a step in which the control unit (30) uses the thermal imaging camera (70) to shoot a picture of the face of a patient who has the oral sensor (100) in his mouth. The thermal image data generated in the thermal imaging camera shooting step (S20) can be displayed as a thermal image by being transmitted to the display unit (60) through the control unit (30) or directly and stored in a memory which is a component of the control unit (30).

[0108] The above optical camera shooting step (S10) and the above thermal imaging camera shooting step (S20) may be performed in reversed order or may be performed simultaneously.

[0109] The above image overlapping step (S30) is a step in which the control unit (30) uses the real image data and the thermal image data stored in the memory to overlay the real image of the patient's face and the thermal image of the patient's face, thereby generating the overlapping image in which the oral sensor (100) is displayed on the real image of the patient's face.

[0110] In order to precisely match the two images (images) when overlapping the real image and the thermal image in the above image overlapping step (S30), a method of matching a plurality of points corresponding to each other in the two images can be used. In this case, as described above, the control unit (30) may be configured to superimpose the real image of the patient's face and the thermal image of the patient's face by specifying a plurality of points in the real image of the patient's face, specifying the same plurality of points corresponding to the plurality of points in the thermal image of the patient's face, and matching the plurality of points specified in the real image of the patient's face with the plurality of points specified in the thermal image of the patient's face. At this time, the plurality of points specified in the real image of the patient's face or the plurality of points specified in the thermal image of the patient's face may be three points corresponding to the center points of both eyes of the patient and the apex of the nose.

[0111] Meanwhile, the image overlapping step (S30) may utilize a method of reducing the resolution to prevent the phenomenon of the identification of the oral sensor (100) from being reduced when overlapping the real image and the thermal image. In this case, as described above, the control unit (30) may be configured to reduce the resolution of the patient's facial real image and the patient's facial thermal image when generating the overlapping image and then overlay the two images.

[0112] As described above, the patient's facial shape and the oral sensor (100) are displayed together in the synthetic image created by overlapping the real image and the thermal image, and the image is displayed on the display unit (60).

[0113] Accordingly, the user can confirm the position of the oral sensor (100) in the real image of the patient's face displayed on the display unit (60). At this time, the displayed superimposed image provides a more realistic feeling because the patient's face is displayed closer to the real image than in the existing thermal image.

[0114] The user adjusts the posture of the portable X-ray photographing device so that the oral sensor (100) is at the center of the screen while the composite image superimposed on the display unit (60) is displayed, and then performs X-ray photographing while the oral sensor (100) is at the center of the screen, thereby enabling the area to be photographed to be photographed to be photographed to be photographed more accurately.

[0115] Meanwhile, the oral sensor highlighting step (S40) is a step in which the control unit (30) superimposes the patient's real face image and the patient's facial thermal image, in which the remaining portion is made transparent except for the oral sensor (100) portion.

[0116] In order to perform the above oral sensor highlighting step (S40), the control unit (30) may be configured to superimpose the patient's facial real image and the patient's facial thermal image, in which the remaining portion is made transparent except for the oral sensor (100) portion.

[0117] At this time, the oral sensor highlighting step (S40) may be configured to further perform a step of restoring the resolution of the patient's facial real image and the patient's facial thermal image to the initial state when the image overlapping step (S30) is configured to reduce the resolution of the patient's facial real image and the patient's facial thermal image.

[0118] In this case, the control unit (30) may be configured to display the oral sensor (100) portion in a specific color.

[0119] In addition, the control unit (30) may be configured to display an outline (a line displayed along the outer edge of the shape of the oral sensor (100)) on the oral sensor (100) portion.

[0120] The above oral sensor highlighting display step (S40) is a step of further highlighting and displaying the oral sensor (100) in the composite image provided to the user, thereby enabling the user to more easily adjust the posture of the portable X-ray imaging device. That is, the oral sensor highlighting display step (S40) enables the user to more clearly visually recognize the oral sensor (100), thereby enabling the user to more easily adjust the posture of the portable X-ray imaging device.

[0121] Although the above oral sensor highlighting step (S40) is depicted as being performed after the image overlapping step (S30), it may be understood as an example of the image overlapping step (S30).

[0122]

[0123] As described above, the portable X-ray photographing device according to the present invention can accurately irradiate X-rays toward the oral sensor, thereby enabling more accurate photographing of a desired location.

[0124]

[0125] As described above, the present invention has been described with reference to the embodiments illustrated in the drawings. However, these are merely exemplary, and it should be understood that various modifications and equivalent alternative embodiments are possible based on common knowledge in the art. Therefore, the true technical protection scope of the present invention is determined by the claims set forth below and based on the specific contents of the invention described above.

[0126]

[0127] The present invention relates to a portable X-ray photographing device, and can be used in industrial fields related to medical X-ray devices.

Claims

1. Main body with an X-ray irradiation window formed at the front end; An X-ray source installed inside the main body; An optical camera installed on one side of the outer periphery of the front end of the main body and capturing a real image of the subject; A thermal imaging camera installed adjacent to the optical camera on the outer peripheral side of the front end of the main body, and capturing a thermal image of the subject; A display unit installed on the upper surface of the main body and displaying images captured by the optical camera and the thermal imaging camera; and A control unit that controls the operation of the X-ray source, the optical camera, the thermal imaging camera, and the display unit; A portable X-ray imaging device including:

2. In claim 1, the optical camera and the thermal imaging camera, A portable X-ray photographing device characterized in that it is installed at the upper center of the front end circumference of the main body.

3. In claim 2, the optical camera and the thermal imaging camera, A portable X-ray photographing device characterized in that it is installed in a state in which it has an installation angle (α) tilted forward with respect to a plane perpendicular to the X-ray irradiation direction of the above X-ray source.

4. In claim 3, the installation angle (α) is A portable X-ray imaging device characterized by having a range of more than 0° and less than 30°.

5. In claim 1, the display unit, A portable X-ray imaging device characterized by displaying the actual image captured by the optical camera as is.

6. In claim 1, the display unit, A portable X-ray imaging device characterized by displaying a thermal image captured by the thermal imaging camera as is.

7. In claim 1, The above control unit creates an overlapping image by overlapping a real image captured by the optical camera and a thermal image captured by the thermal imaging camera, A portable X-ray imaging device characterized in that the display unit displays the overlapping image.

8. In claim 7, The above optical camera generates real-time image data by capturing the face of a patient who has the oral sensor in his or her mouth. The above thermal imaging camera generates thermal imaging data by capturing the face of a patient who has the oral sensor in their mouth. The control unit uses the real image data and the thermal image data to superimpose the real image of the patient's face and the thermal image of the patient's face, thereby generating the superimposed image in which the oral sensor is displayed on the real image of the patient's face. A portable X-ray imaging device characterized in that the display unit displays the overlapping image.

9. In claim 8, the control unit, A portable X-ray imaging device characterized in that the resolution of the real image of the patient's face and the thermal image of the patient's face are reduced and then the two images are superimposed.

10. In claim 8, the control unit, A portable X-ray imaging device characterized in that it specifies a plurality of points in the real image of the patient's face, specifies the same plurality of points corresponding to the plurality of points in the thermal image of the patient's face, and superimposes the real image of the patient's face and the thermal image of the patient's face in a manner that matches the plurality of points specified in the real image of the patient's face with the plurality of points specified in the thermal image of the patient's face.

11. In claim 10, A portable X-ray imaging device, characterized in that the plurality of points specified in the patient's facial real image or the plurality of points specified in the patient's facial thermal image are three points corresponding to the center points of both eyes of the patient and the apex of the nose.

12. In claim 8, the control unit, A portable X-ray imaging device characterized in that it superimposes a real image of the patient's face and a thermal image of the patient's face, with the remaining portions being made transparent except for the oral sensor portion.

13. In claim 12, the control unit, A portable X-ray photographing device characterized in that the oral sensor part is displayed in a specific color.

14. In claim 12, the control unit, A portable X-ray photographing device characterized by displaying an outline on the oral sensor portion.

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