X-ray beam limiting device light radiation field correction tool
By designing an X-ray beam limiter optical field correction fixture, and using a reflector and laser lamp to correct the beam limiter optical field, the problems of drop risk and physical exertion of operators during beam limiter debugging were solved, achieving a more efficient and consistent correction effect.
Patent Information
- Application Number
- CN202422622612.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-10-29
Smart Images
Figure CN223516367U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to medical diagnosis and treatment equipment technical field, specifically, relate to an X -ray beam limiter light field correction frock. BACKGROUND
[0002] X -ray diagnostic technique is the world's earliest application non -invasive internal examination technique. Because X -ray passes through human body, different parts of the absorption degree is different, such as the X -ray amount absorbed by the bone is more than the amount absorbed by the muscle, so after passing through the human body, the X -ray amount of different parts is not the same, these different X -ray amount carries the density distribution information of each part of the human body, and the strength of the fluorescence effect or photosensitive effect on the fluorescent screen or photographic film is quite different, so the shadow of different density will be displayed on the fluorescent screen or photographic film (after developing and fixing). According to the contrast of shadow depth, combined with clinical manifestations, test results and pathological diagnosis, whether the human body is normal can be judged. With the continuous improvement of medical diagnosis level and the increasing concern of people on health, the application of X -ray diagnostic technique is more and more widely.
[0003] X -ray generating device is the basic component of X -ray diagnosis and treatment equipment, which usually includes a ball tube and an X -ray beam limiter. The X -ray beam limiter is usually installed below the ball tube, and the ball tube emits X -ray, which is projected onto the subject through the lead leaf opening in the X -ray beam limiter. X -ray is harmful to human body, and the projection range of X -ray needs to be controlled to only irradiate the part of human body that needs to be checked or the lesion part, so as to avoid the harm of excess X -ray to human body, and the X -ray beam limiter plays such a role. In the prior art, most of the beam limiter manufacturers generally use X -ray lead box exposure to debug the beam limiter, and the beam limiter is hung in the lead box through frock, the position of LED lamp is adjusted, and repeated exposure is confirmed, finally the light field deviation is less than the standard value, but the beam limiter is hung with the risk of falling, and the installation and hanging of the heavy machine consume more physical strength of the operator, repeated operation reduces the work efficiency, and also shortens the service life of the lead box. CONTENT OF THE UTILITY MODEL
[0004] In view of the shortcomings of the prior art described above, this utility model provides an X-ray beam limiter optical field correction fixture, including a main frame, a reflector, an optical field module, and a laser lamp. A support plate and a slide rail are mounted on the main frame. The support plate has a beam limiter mounting flange on its surface for mounting the beam limiter. The reflector is located above the support plate. The optical field module is mounted on the slide rail and faces the reflector. The laser lamp is located below the support plate, and its emitted laser light can pass through the center of a through-hole on the support plate, hit the reflector, and then reflect back to the optical field module. When using the fixture provided by this utility model for optical field correction, mounting the beam limiter on the support plate avoids the use of a lead box, thus avoiding the risk of the beam limiter falling, improving the stability and operational safety of the fixture, saving the operator's physical exertion, and improving work efficiency. Furthermore, before performing optical field correction, the position of the optical field module is determined first, and then the beam limiter is corrected using the optical field frame on the optical field module as a reference, improving the consistency of the correction results.
[0005] To achieve the above and other related objectives, this utility model provides an X-ray beam limiter optical field correction fixture, characterized in that it comprises:
[0006] The main frame includes several supporting columns that connect the whole and are used to support the tooling; a support plate and two parallel slide rails are installed on the main frame, the slide rails extend along the length direction of the main frame, the support plate is located at one end of the slide rails, and the support plate has a through hole in the center.
[0007] The reflector is located above the support plate and forms an angle with the horizontal plane;
[0008] The light field module is slidably connected to the slide rail via a movable component, and the light field module is positioned facing the reflector.
[0009] The laser light is located below the support plate. The laser emitted by the light light passes through the center of the through hole and hits the reflector, which then reflects the light field module.
[0010] Optionally, the angle between the reflector and the horizontal plane is 45°.
[0011] Optionally, the light field module has a first scale line and a second scale line that are perpendicular to each other. The first scale line is in the vertical direction, and the intersection of the first scale line and the second scale line coincides with the center of the light field module.
[0012] Optionally, the light field module has a first light field frame, a second light field frame, and a third light field frame that are nested together. The first light field frame, the second light field frame, and the third light field frame are arranged with the same center and the same axis of symmetry, and the center of the three frames coincides with the center of the light field module.
[0013] Optionally, the first light field frame is a square frame of 200mm*200mm.
[0014] Optionally, the second light field frame is a square frame of 300mm*300mm.
[0015] Optionally, the third light field frame is a square frame of 430mm*430mm.
[0016] Optionally, a limited beam flange is arranged on the support plate and coaxially arranged with the through hole.
[0017] Optionally, the light field module is a light field detection plate or an X-ray flat panel detector.
[0018] Optionally, the light field detection plate has magnetism.
[0019] The X-ray limited beam collimator light field correction tool provided by the utility model has at least the following beneficial effects:
[0020] When the light field correction is carried out by using the tool provided by the utility model, the limited beam collimator is mounted on the support plate, the lead box is avoided, the falling risk of the limited beam collimator is avoided, the stability of the tool and the safety of operation are improved, the physical consumption of the operator is saved, and the work efficiency is improved; in addition, before the light field correction is carried out, the position of the light field module is determined first, then the light field frame on the light field module is taken as a reference to correct the limited beam collimator, and the consistency of the correction result is improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figures 1-2 The debugging schematic view of the X-ray limited beam collimator light field correction tool provided by the embodiment is shown.
[0022] Figure 3 The structural schematic view of the light field module provided by the embodiment is shown.
[0023] ELEMENT NUMBER EXPLANATION
[0024] 1 main frame
[0025] 2 reflector
[0026] 3 light field module
[0027] 31 first scale line
[0028] 32 second scale line
[0029] 301 first light field frame
[0030] 302 second light field frame
[0031] 303 third light field frame
[0032] 4 support plate
[0033] 5 slide rail
[0034] 6 collimator mounting flange
[0035] 7 moving part
[0036] 8 standard collimator DETAILED DESCRIPTION
[0037] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present application.
[0038] It should be noted that the diagrams provided in the present embodiment only schematically illustrate the basic concept of the present application, and although only the components related to the present application are shown in the diagrams, the diagrams are not drawn according to the number, shape and size of the components in actual implementation, and the shape, number, positional relationship and proportion of each component in actual implementation can be changed at will under the premise of realizing the technical solutions of the present application, and the component layout form can also be more complex.
[0039] EMBODIMENT
[0040] The present embodiment provides an X-ray collimator light field correction tool, as shown in the figure, which comprises a main frame 1, a mirror 2 and a light field module 3. The main frame 1 comprises a plurality of support columns connected as a whole for supporting the tool. The mirror 2 is located above the main frame 1. The light field module 3 is located on the main frame 1 and is arranged towards the mirror 2. Figure 1 As shown in the figure, a support plate 4 and two parallel slide rails 5 are installed on the main frame 1. The slide rails 5 extend along the length direction (X-axis direction shown in the figure) of the main frame 1. The support plate 4 is located at one end of the slide rails 5.
[0041] As shown in the figure, a support plate 4 and two parallel slide rails 5 are installed on the main frame 1. The slide rails 5 extend along the length direction (X-axis direction shown in the figure) of the main frame 1. The support plate 4 is located at one end of the slide rails 5. Figure 1 Figure 1 As an example, the support plate 4 has a through hole (not shown in the figure) in the center. A collimator mounting flange 6 is arranged on the support plate 4. The collimator mounting flange 6 is hollow inside and coaxially arranged with the through hole. The collimator mounting flange 6 is used to install a collimator.
[0042] As an example, a moving part 7 is arranged on the slide rail 5. The extension direction of the moving part 7 is perpendicular to the extension direction of the slide rail 5. The moving part 7 is in sliding connection with the slide rail 5 and can move along the extension direction of the slide rail 5. In the present embodiment, the moving part 7 is made of aluminum alloy material.
[0043] As an example, a moving part 7 is arranged on the slide rail 5. The extension direction of the moving part 7 is perpendicular to the extension direction of the slide rail 5. The moving part 7 is in sliding connection with the slide rail 5 and can move along the extension direction of the slide rail 5. In the present embodiment, the moving part 7 is made of aluminum alloy material.
[0044] As shown in Figure 1 , the mirror 2 is located above the support plate 4, and the reflecting surface thereof is arranged towards the support plate 4. As an example, the mirror 2 forms an angle with the horizontal plane (the plane formed by the X-axis and the Y-axis), and in this embodiment, the angle between the mirror 2 and the horizontal plane is 45°. Figure 1 As shown in
[0045] As an example, a laser lamp (not shown in the figure) is arranged below the support plate 4, and the laser emitted by the laser lamp passes through the center of the through hole on the support plate 4 and hits the mirror 2, and is then reflected to the light field module 3.
[0046] As shown in Figure 1 , the light field module 3 is arranged towards the mirror 2, and the light field module 3 is slidingly connected with the slide rail 5 through the moving piece 7. As an example, the light field module 3 can be a light field detection plate or an X-ray flat panel detector. In this embodiment, the light field module 3 is a light field detection plate, and has magnetism, and one side of the light field detection plate towards the moving piece 7 has an iron plate (not shown in the figure), and the iron plate is magnetically connected with the light field detection plate; the iron plate has a waist-shaped hole, and the iron plate is connected with the moving piece 7 through a screw, and the waist-shaped hole extends along the width direction (the Y-axis direction shown in Figure 1 ) of the main body frame 1, so that the relative position of the light field detection plate and the moving piece 7 in the Y-axis direction shown in Figure 1 can be adjusted in a small range, and the position of the light field detection plate in the Y-axis direction shown in Figure 1 can be adjusted in a small range.
[0047] As shown in Figure 3 , the light field module 3 has a first scale line 31 and a second scale line 32 perpendicular to each other, wherein the first scale line 31 is in the vertical direction (the Z-axis direction shown in Figure 2 ), and the second scale line 32 is in the horizontal direction (the Y-axis direction shown in Figure 2 ), and the intersection of the first scale line 31 and the second scale line 32 coincides with the center of the light field module 3.
[0048] As shown in Figure 3 , the light field module 3 further has a first light field frame 301, a second light field frame 302 and a third light field frame 303 which are sleeved, and the first light field frame 301, the second light field frame 302 and the third light field frame 303 are arranged with the same center and the same symmetry axis, and the centers of the three coincide with the center of the light field module 3, and the symmetry axes of the three coincide with the first scale line 31 and the second scale line 32. As an example, the first light field frame 301 is a square frame with a size of 200mm×200mm, the second light field frame 302 is a square frame with a size of 300mm×300mm, and the third light field frame 303 is a square frame with a size of 430mm×430mm.
[0049] In this embodiment, taking a beam field range of 300mm × 300mm for the beam limiter as an example, the working principle of the X-ray beam limiter beam field correction fixture provided in this embodiment is explained, including:
[0050] First, such as Figure 1 As shown, the laser emitted by the laser lamp is reflected by the reflector 2 onto the light field module 3. By moving the moving part 7, the light field module 3 is adjusted. Figure 1 The position shown on the X-axis can also be adjusted slightly by adjusting the relative position of the optical field module 3 and the moving part 7, thus slightly adjusting the position of the optical field detection plate. Figure 1 The position along the Y-axis is shown until the laser hits the intersection of the first scale line 31 and the second scale line 32.
[0051] Next, as Figure 2 As shown, a standard beam limiter 8 is provided and mounted on the beam limiter mounting flange 6. The light field range of the standard beam limiter 8 is 300mm × 300mm. The light emitted by the LED lamp inside the standard beam limiter 8 is reflected by the reflector 2 onto the light field module 3, forming an illumination area on the light field module 3. By adjusting the light field module 3... Figure 2 The positions shown on the X and Y axes are such that the illumination area coincides with the second light field frame 302 on the light field module 3. Next, the standard beam limiter 8 is positioned on the horizontal plane ( Figure 2 Rotate the plane formed by the X and Y axes shown by 180°, and adjust the light field module 3 in the same way so that the irradiation area coincides with the second light field frame 302 on the light field module 3, thereby improving the accuracy of subsequent correction.
[0052] Finally, the position of the optical field module 3 is fixed, and the beam limiter to be calibrated is installed on the beam limiter mounting flange 6. By adjusting the LED lights inside the beam limiter, the irradiation area that it hits on the optical field module 3 is made to coincide with the second optical field frame 302, thus completing the calibration.
[0053] When using the fixture provided in this embodiment for optical field calibration, the beam limiter is mounted on the support plate, avoiding the use of lead boxes, thereby avoiding the risk of the beam limiter falling, improving the stability of the fixture and the safety of operation, saving the physical exertion of the operator, and improving work efficiency; in addition, before performing optical field calibration, the position of the optical field module is determined first, and then the beam limiter is calibrated with the optical field frame on the optical field module as a reference, which improves the consistency of the calibration results.
[0054] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.
Claims
1. An X-ray beam-limiting field-of-view correction tool, comprising: The utility model relates to a kind of laser light field frame, including: Main frame, including connecting several support columns of whole, for supporting the tooling;Supporting plate and two parallel slide rails are installed on the main frame, the slide rail extends along the length direction of the main frame, the supporting plate is located in one end of the slide rail, the supporting plate center has a through hole; Mirror, located above the supporting plate, forms an angle with horizontal plane; Light field module, slidingly connected with the slide rail by moving piece, the light field module is set towards the mirror; Laser lamp, located below the supporting plate, the laser emitted by it passes through the center of the through hole and hits the mirror, and is reflected to the light field module.
2. The X-ray beam-limiting field optical field correction tool of claim 1, wherein, The angle between the mirror and the horizontal plane is 45 °.
3. The X-ray beam-limiting field optical field correction tool of claim 1, wherein, The light field module has first scale line and second scale line perpendicular to each other, the first scale line is along vertical direction, and the intersection of the first scale line and the second scale line coincides with the center of the light field module.
4. The X-ray beam limiter optical field correction fixture according to claim 1, characterized in that, The light field module has first light field frame, second light field frame and third light field frame, the first light field frame, the second light field frame and the third light field frame are coaxially arranged with the center and the symmetry axis, and the centers of the three coincide with the center of the light field module.
5. The X-ray beam-limiting field optical field correction tool of claim 4, wherein, The first light field frame is a square frame of 200mmx200mm.
6. The X-ray beam-limiting field optical field correction tool of claim 4, wherein, The second light field frame is a square frame of 300mmx300mm.
7. The X-ray beam-limiting field optical field correction tool of claim 4, wherein, The third light field frame is a square frame of 430mmx430mm.
8. The X-ray beam limiter optical field correction fixture according to claim 1, characterized in that, The supporting plate is provided with a limited beam device mounting flange coaxially arranged with the through hole.
9. The X-ray beam limiter optical field correction fixture according to claim 1, characterized in that, The light field module is a light field detection plate or an X-ray flat panel detector.
10. The X-ray beam-limiting field optical field correction tool of claim 9, wherein, The light field detection plate has magnetism.