A linear accelerator isocenter verification tool

By designing a linear accelerator and other center verification tooling including L-shaped main frame, positioning block structure, quick-change plate structure and laser line projector, the problem of difficulty in accurately verifying the center size of linear accelerators in the prior art is solved, and the accurate verification of peer centers and the improvement of product pass rate is achieved.

CN222733552UActive Publication Date: 2025-04-08LIAONING PROGRESSING CAST METAL CO LTD
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Patent Information

Application Number
CN202420502021.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-15
Publication Date
2025-04-08
Estimated Expiration
2034-03-15

AI Technical Summary

Technical Problem

Linear accelerators have high requirements for accuracy in peer-center dimensions in radiation therapy and medical imaging applications, but the prior art is difficult to accurately verify, resulting in inaccurate measurement dimensions and product scrapping.

Method used

A central verification tooling including an L-shaped main frame, a positioning block structure, a quick-replacement plate structure and a linear accelerator, was designed. The laser projector emits two straight lines horizontal and vertical lines, and compares them with the corresponding lines of the linear accelerator to verify whether the product is isocentric.

Benefits of technology

Accurate verification of centers such as linear accelerators is achieved, the product pass rate is improved, and product scrapping is avoided due to inaccurate measurements.

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Abstract

The utility model relates to the technical field of linear accelerators, and in particular provides a linear accelerator isocenter verification tooling, including an L-shaped main frame, a positioning block structure, a quick-change pressure plate structure, and a laser line projector. The main frame includes a horizontal frame and a vertical frame. On both sides of the vertical frame, at least one positioning block structure and one quick-change pressure plate structure are provided. On the side of the horizontal frame away from the vertical frame, a line projector bracket is provided, and a laser line projector is provided on the line projector bracket. The utility model uses the laser line projector to emit two horizontal and vertical straight lines, which are compared with the horizontal and vertical lines of the linear accelerator itself, so as to verify whether the product is the isocenter and complete the product inspection.
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Description

Technical Field

[0001] The utility model relates to the technical field of linear accelerators, and in particular provides a linear accelerator isocenter verification tool. Background Art

[0002] Linear accelerators are generally used in radiotherapy and medical imaging. Both applications require very high dimensional accuracy of the linear accelerator itself, especially the isocenter size. Conventional measuring tools cannot accurately inspect it, and inaccurate measurement often leads to product scrapping. Therefore, there is an urgent need for a tool that can verify the isocenter of the linear accelerator to improve the product qualification rate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a linear accelerator isocenter verification tooling.

[0004] The utility model is implemented in this way, providing a linear accelerator and other center verification tooling, including an L-shaped main frame, a positioning block structure, a quick-change pressure plate structure and a laser line projector, the main frame includes a horizontal frame and a vertical frame, at least one positioning block structure and a quick-change pressure plate structure are respectively provided on both sides of the vertical frame, a line projector bracket is provided on the side of the horizontal frame away from the vertical frame, and the laser line projector is arranged on the line projector bracket.

[0005] Preferably, the positioning block structure includes an L-shaped positioning frame, a connecting block and a positioning rod, one side of the positioning frame is fixedly connected to the two sides of the vertical frame of the main frame, the connecting block is fixedly connected to the end of the other side of the positioning frame, and is located on the same side as the side connected to the positioning frame and the main frame, the positioning rod is provided with an external thread, and the connecting block is provided with an internal thread matching the external thread of the positioning rod, the positioning rod passes through the positioning frame and then penetrates into the connecting block.

[0006] Further preferably, the quick-change pressure plate structure includes a quick-change bracket, a hydraulic cylinder, a connecting frame and a quick-change pressure plate, one side of the quick-change bracket is connected to both sides of the vertical frame of the main frame, the hydraulic cylinder is connected to the quick-change bracket, the hydraulic rod of the hydraulic cylinder passes through the quick-change bracket and is rotatably connected to the end of the quick-change pressure plate, and the connecting frame is also arranged on the quick-change bracket and is rotatably connected to the quick-change pressure plate through a connecting rod.

[0007] Further preferably, the end of the quick-change pressure plate away from the hydraulic rod is an area-enlarged pressure plate structure.

[0008] Further preferably, two positioning block structures and one quick-change pressure plate structure are provided on both sides of the vertical frame of the main frame, and the two positioning block structures are arranged on both sides of the quick-change pressure plate structure.

[0009] Compared with the prior art, the advantages of the utility model are:

[0010] The utility model provides a linear accelerator isocenter verification tool, which emits two horizontal and vertical lines through a laser line projector, and compares them with the horizontal and vertical lines of the linear accelerator itself, so as to verify whether the product is the isocenter and complete the product inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation methods:

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a right side structural schematic diagram of the utility model;

[0014] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the positioning block structure;

[0016] Figure 5 It is a schematic diagram of the front view of the quick-change pressure plate structure;

[0017] Figure 6 It is a top view schematic diagram of the quick-change pressure plate structure. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] refer to Figure 1-Figure 6 The utility model provides a linear accelerator isocenter verification tooling, including an L-shaped main frame 1, a positioning block structure 2, a quick-change pressure plate structure 3 and a laser line projector 4. The main frame 1 includes a horizontal frame and a vertical frame. At least one positioning block structure 2 and one quick-change pressure plate structure 3 are provided on both sides of the vertical frame. A line projector bracket 5 is provided on the side of the horizontal frame away from the vertical frame, and the laser line projector 4 is arranged on the line projector bracket 5.

[0020] When the utility model is used to verify the isocenter of a linear accelerator, the linear accelerator is placed on one side of a horizontal frame close to a vertical frame, the linear accelerator is clamped by the positioning block structures 2 on both sides and kept in the middle of the vertical frame, and then the two sides of the linear accelerator are pressed by the quick-change pressure plate structures 3 on both sides to complete the positioning of the linear accelerator; the laser line projector 4 is turned on, and the laser line projector 4 emits two horizontal and vertical lasers, which are projected on the linear accelerator. At this time, if the linear accelerator is no longer in the middle, the quick-change pressure plate structures 3 on both sides are opened, and then the position of the linear accelerator is adjusted by the positioning block structures 2 on both sides until it is kept in the middle; the horizontal and vertical lines of the linear accelerator itself are compared with the two lasers emitted by the laser line projector 4 to complete the verification of the isocenter of the linear accelerator.

[0021] As a specific implementation method of the positioning block structure 2, the positioning block structure 2 includes an L-shaped positioning frame 6, a connecting block 7 and a positioning rod 8. One side of the positioning frame 6 is fixedly connected to the two sides of the vertical frame of the main frame 1. The connecting block 7 is fixedly connected to the end of the other side of the positioning frame 6 and is located on the same side as the side connected to the positioning frame 6 and the main frame 1. The positioning rod 8 is provided with an external thread, and an internal thread matching the external thread of the positioning rod 8 is provided inside the connecting block 7. The positioning rod 8 passes through the positioning frame 6 and then penetrates into the connecting block 7.

[0022] When the linear accelerator is positioned using the positioning block structure 2, the end of the positioning rod 8 is rotated with a wrench to screw the positioning rod 8 into or out of the connecting block 7 and the positioning frame 6, so that the enlarged end of the positioning rod 8 is moved away from or close to the linear accelerator to complete the positioning of the linear accelerator.

[0023] As a specific implementation method of the quick-change pressure plate structure 3, the quick-change pressure plate structure 3 includes a quick-change bracket 9, a hydraulic cylinder 10, a connecting frame 11 and a quick-change pressure plate 12. One side of the quick-change bracket 9 is connected to the two sides of the vertical frame of the main frame 1. The hydraulic cylinder 10 is connected to the quick-change bracket 9. The hydraulic rod of the hydraulic cylinder 10 passes through the quick-change bracket 9 and is rotatably connected to the end of the quick-change pressure plate 12. The connecting frame 11 is also arranged on the quick-change bracket 9 and is rotatably connected to the quick-change pressure plate 12 through a connecting rod.

[0024] When the linear accelerator is pressed by the quick-change pressure plate structure 3, the hydraulic cylinder 10 is controlled so that the hydraulic rod pushes the quick-change pressure plate 12 to rotate around the connecting frame 11, thereby pressing the quick-change pressure plate 12 or moving it away from the linear accelerator.

[0025] In order to achieve a better clamping effect, as an improvement of the technical solution, the end of the quick-change pressure plate 12 away from the hydraulic rod is an area-enlarged pressure plate structure.

[0026] Preferably, two positioning block structures 2 and one quick-change pressure plate structure 3 are provided on both sides of the vertical frame of the main frame 1 , and the two positioning block structures 2 are arranged on both sides of the quick-change pressure plate structure 3 .

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A linear accelerator isocenter verification tool, characterized in that: The invention comprises an L-shaped main frame (1), a positioning block structure (2), a quick-change pressure plate structure (3) and a laser line projector (4); the main frame (1) comprises a horizontal frame and a vertical frame; at least one positioning block structure (2) and one quick-change pressure plate structure (3) are respectively provided on both sides of the vertical frame; a line projector bracket (5) is provided on the side of the horizontal frame away from the vertical frame; and the laser line projector (4) is arranged on the line projector bracket (5).

2. The linear accelerator isocenter verification tooling according to claim 1, characterized in that: The positioning block structure (2) comprises an L-shaped positioning frame (6), a connecting block (7) and a positioning rod (8); one side of the positioning frame (6) is fixedly connected to the two sides of the vertical frame of the main frame (1); the connecting block (7) is fixedly connected to the end of the other side of the positioning frame (6) and is located on the same side as the side connected to the positioning frame (6) and the main frame (1); an external thread is provided on the positioning rod (8); an internal thread matching the external thread of the positioning rod (8) is provided inside the connecting block (7); the positioning rod (8) passes through the positioning frame (6) and then penetrates into the inside of the connecting block (7).

3. The linear accelerator isocenter verification tooling according to claim 1, characterized in that: The quick-change pressure plate structure (3) comprises a quick-change bracket (9), a hydraulic cylinder (10), a connecting frame (11) and a quick-change pressure plate (12); one side of the quick-change bracket (9) is connected to the two sides of the vertical frame of the main frame (1); the hydraulic cylinder (10) is connected to the quick-change bracket (9); the hydraulic rod of the hydraulic cylinder (10) passes through the quick-change bracket (9) and is rotatably connected to the end of the quick-change pressure plate (12); the connecting frame (11) is also arranged on the quick-change bracket (9) and is rotatably connected to the quick-change pressure plate (12) through a connecting rod.

4. The linear accelerator isocenter verification tooling according to claim 3, characterized in that: The end of the quick-change pressure plate (12) away from the hydraulic rod is an area-enlarged pressure plate structure.

5. The linear accelerator isocenter verification tool according to claim 1, characterized in that: Two positioning block structures (2) and one quick-change pressure plate structure (3) are provided on both sides of the vertical frame of the main frame (1), and the two positioning block structures (2) are arranged on both sides of the quick-change pressure plate structure (3).