Detection die body for positioning and tracking system of radiotherapy device

Abstract

The utility model provides a radiotherapy device positioning tracking system detection die body, which comprises a base, a neck die body and a head die body which are sequentially arranged from bottom to top, a plurality of accommodating cavities are symmetrically arranged at the bottom of the base, and suckers with lifting columns at the tops are arranged in the accommodating cavities. A guide hole for providing a moving space for the lifting column is formed in the top of the accommodating cavity; when the detection device is used, the detection die body is placed on a table top, the electric telescopic rod drives the driving plate to move by starting the electric telescopic rod, the driven inclined block is driven to move through the driving inclined block when the driving plate moves, the driven inclined block moves to drive the lifting column to move, and the reset spring is arranged below the sliding block. Stable movement and automatic reset of the sliding block and the lifting column are ensured, the lifting column moves to drive the suction cup to make contact with the table top, the suction cup sucks the table top, then the base is stably placed on the table top, and the placement stability of the detection die body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection phantoms, in particular to a detection phantom of a positioning and tracking system of a radiotherapy device. Background Art

[0002] A test phantom for a radiotherapy device's positioning and tracking system is a specialized device used to test and verify the positioning and tracking accuracy of radiotherapy equipment (such as linear accelerators, CyberKnife, and TomoTherapy). In radiotherapy, precise positioning and tracking are crucial to ensuring that the radiation beam accurately delivers to the target tumor while minimizing the impact on surrounding healthy tissue. Test phantoms typically consist of a base, neck, and head phantom.

[0003] In radiotherapy, the accuracy of positioning and tracking systems directly impacts treatment effectiveness and patient safety. Traditional detection phantoms often lack effective stability and adjustability, requiring high stability during the detection process. Therefore, developing an adjustable detection phantom that provides a stable detection environment has become an urgent issue. Utility Model Content

[0004] The purpose of the utility model is to provide a detection phantom of a positioning and tracking system of a radiotherapy device, which realizes the stable placement of the detection phantom and improves the accuracy and flexibility of detection through a unique suction cup lifting structure and a driving mechanism.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a detection phantom of a radiotherapy device positioning and tracking system, comprising a base, a neck phantom and a head phantom arranged in sequence from bottom to top, the bottom of the base is symmetrically provided with multiple accommodating cavities, the interior of the accommodating cavity is provided with a suction cup with a lifting column on the top, the top of the accommodating cavity is provided with a guide hole for providing a movable space for the lifting column, and guide components for resetting and guiding the lifting column are provided on both sides of the inner wall of the guide hole, the back of the base is symmetrically provided with a drive groove connected to the guide hole, the interior of the drive groove is penetrated by a drive plate for driving the lifting column to descend, and the back of the base is provided with a drive mechanism for driving the drive plate to move.

[0006] Preferably, the guide assembly is a slide symmetrically arranged inside the guide hole, a slider connected to the lifting column is passed through the interior of the slide, a guide column is provided inside the slide that passes through the slider and serves to limit and guide the slider, and a return spring is provided under the slider.

[0007] Preferably, the driving plate includes an active bevel block and a driven bevel block, a plurality of active bevel blocks are provided, the plurality of active bevel blocks are arranged at intervals at the bottom of the driving plate, and the driven bevel block is arranged at the top of the lifting column.

[0008] Preferably, the driving mechanism is an electric telescopic rod arranged on the back of the base, and a connecting plate is provided at the output end of the electric telescopic rod, and both ends of the connecting plate are respectively connected to the corresponding driving plates.

[0009] Preferably, a slide groove is provided on the top of the driving groove, and a sliding block connected to the driving plate is penetrated inside the slide groove to limit and guide the driving plate.

[0010] Preferably, a power supply cavity is provided inside the base, a battery is provided inside the power supply cavity, and the battery is electrically connected to the electric telescopic rod.

[0011] Preferably, a control button is provided on the base, and the control button is electrically connected to the battery and the electric telescopic rod respectively.

[0012] The beneficial effects of the utility model are:

[0013] When the utility model is in use, the detection phantom is placed on the desktop, and the electric telescopic rod is started, which drives the driving plate to move. When the driving plate moves, the active inclined block drives the driven inclined block to move, and the movement of the driven inclined block drives the lifting column to move. The reset spring is arranged under the slider to ensure the stable movement and automatic reset of the slider and the lifting column. The movement of the lifting column drives the suction cup to contact with the desktop, so that the suction cup absorbs the desktop, and then the base is stably placed on the desktop, which greatly improves the placement stability of the detection phantom. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0016] Figure 3 It is a side sectional structural schematic diagram of the utility model.

[0017] Figure 4 This utility model Figure 3 Schematic diagram of the structure at point A in the middle.

[0018] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point B.

[0019] In the figure: 1. Neck mold; 2. Base; 3. Accommodating cavity; 4. Suction cup; 5. Guide hole; 6. Lifting column; 7. Guide assembly; 8. Slider; 9. Guide column; 10. Return spring; 12. Driven inclined block; 13. Drive groove; 14. Drive plate; 15. Active inclined block; 16. Slide groove; 17. Sliding block; 18. Drive mechanism; 19. Connecting plate; 20. Power supply cavity; 21. Battery; 22. Control button; 23. Head mold. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, a detection phantom of a radiotherapy device positioning and tracking system includes: a base 2, a neck phantom 1, and a head phantom 23 arranged in sequence from bottom to top. A plurality of accommodating cavities 3 are symmetrically provided at the bottom of the base 2. A suction cup 4 with a lifting column 6 on the top is provided inside the accommodating cavity 3. A guide hole 5 is provided at the top of the accommodating cavity 3 for providing a movable space for the lifting column 6. Guide assemblies 7 for resetting and guiding the lifting column 6 are provided on both sides of the inner wall of the guide hole 5. Drive grooves 13 connected to the guide holes 5 are symmetrically provided on the back of the base 2. A drive plate 14 for driving the lifting column 6 to descend is penetrated inside the drive groove 13. A drive mechanism 18 for driving the drive plate 14 to move is provided on the back of the base 2.

[0022] In this embodiment, when it is necessary to improve the placement stability of the detection model, the detection model is placed on the table. By starting the driving mechanism 18, the driving mechanism 18 drives the driving plate 14 to move, and when the driving plate 14 moves, it drives the lifting column 6 to move. The setting of the guide assembly 7 ensures the vertical movement and reset of the lifting column 6. The movement of the lifting column 6 drives the suction cup 4 to contact the table, so that the suction cup 4 sticks to the table, and then the base 2 is stably placed on the table, which greatly improves the placement stability of the detection model. The base 2, neck model 1 and head model 23 are existing technologies and will not be described here.

[0023] like Figure 5 As shown, the guide assembly 7 is a slide symmetrically arranged inside the guide hole 5, and a slider 8 connected to the lifting column 6 is penetrated inside the slide. A guide column 9 is provided inside the slide that passes through the slider 8 and serves to limit and guide the slider 8. A return spring 10 is provided below the slider 8.

[0024] In this embodiment, the slideway is used to provide guidance for the slider 8 , and the return spring 10 is provided below the slider 8 to ensure stable movement and automatic return of the slider 8 and the lifting column 6 .

[0025] like Figure 4As shown, the driving plate 14 includes an active inclined block 15 and a driven inclined block 12. There are multiple active inclined blocks 15, and multiple active inclined blocks 15 are arranged at intervals at the bottom of the driving plate 14. The driven inclined block 12 is arranged at the top of the lifting column 6. The vertical movement of the lifting column 6 is realized by the inclined plane principle.

[0026] like Figure 2 As shown, the driving mechanism 18 is an electric telescopic rod arranged on the back of the base 2. A connecting plate 19 is provided at the output end of the electric telescopic rod. The two ends of the connecting plate 19 are respectively connected to the corresponding driving plate 14 to achieve precise control of the movement of the driving plate 14.

[0027] like Figure 4 As shown, a slide groove 16 is provided at the top of the driving groove 13 , and a sliding block 17 connected to the driving plate 14 is penetrated inside the slide groove 16 for limiting and guiding the driving plate 14 .

[0028] In this embodiment, the sliding groove 16 and the sliding block 17 cooperate with each other to ensure smooth and stable movement of the driving plate 14.

[0029] like Figure 1 and Figure 2 As shown, a power supply cavity 20 is provided inside the base 2, a battery 21 is provided inside the power supply cavity 20, and the battery 21 is electrically connected to the electric telescopic rod. A control button 22 is provided on the base 2, and the control button 22 is electrically connected to the battery 21 and the electric telescopic rod respectively.

[0030] In this embodiment, the battery 21 is used to provide power to the electric telescopic rod, and the control button 22 is provided to facilitate the user to operate the detection phantom.

[0031] Working principle: When in use, the detection phantom is placed on the desktop, and the electric telescopic rod is started, which drives the driving plate 14 to move. When the driving plate 14 moves, the active inclined block 15 drives the driven inclined block 12 to move, and the movement of the driven inclined block 12 drives the lifting column 6 to move. The slide is used to provide guidance for the slider 8. The reset spring 10 is arranged under the slider 8 to ensure the stable movement and automatic reset of the slider 8 and the lifting column 6. The movement of the lifting column 6 drives the suction cup 4 to contact the desktop, so that the suction cup 4 sucks the desktop, and then the base 2 is stably placed on the desktop, which greatly improves the placement stability of the detection phantom.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A detection phantom for a radiotherapy device positioning and tracking system, comprising: The base (2), the neck mold (1) and the head mold (23) are arranged in sequence from bottom to top, and are characterized in that the bottom of the base (2) is symmetrically provided with a plurality of accommodating cavities (3), the interior of the accommodating cavity (3) is provided with a suction cup (4) with a lifting column (6) on the top, the top of the accommodating cavity (3) is provided with a guide hole (5) for providing a movable space for the lifting column (6), and the inner walls of the guide hole (5) are provided with guide components (7) for resetting and guiding the lifting column (6), the back of the base (2) is symmetrically provided with a driving groove (13) connected to the guide hole (5), the interior of the driving groove (13) is provided with a driving plate (14) for driving the lifting column (6) to descend, and the back of the base (2) is provided with a driving mechanism (18) for driving the driving plate (14) to move.

2. The detection phantom of the radiotherapy device positioning and tracking system according to claim 1, characterized in that: The guide assembly (7) is a slide symmetrically arranged inside the guide hole (5), a slider (8) connected to the lifting column (6) is passed through the slide, a guide column (9) is provided inside the slide, which passes through the slider (8) and serves to limit and guide the slider (8), and a return spring (10) is provided below the slider (8).

3. The detection phantom of the radiotherapy device positioning and tracking system according to claim 2, characterized in that: The driving plate (14) comprises an active inclined block (15) and a driven inclined block (12). A plurality of active inclined blocks (15) are provided. The plurality of active inclined blocks (15) are arranged at intervals at the bottom of the driving plate (14), and the driven inclined block (12) is arranged at the top of the lifting column (6).

4. The detection phantom of the radiotherapy device positioning and tracking system according to claim 3, characterized in that: The driving mechanism (18) is an electric telescopic rod arranged on the back of the base (2). The output end of the electric telescopic rod is provided with a connecting plate (19), and the two ends of the connecting plate (19) are respectively connected to the corresponding driving plates (14).

5. The detection phantom of the radiotherapy device positioning and tracking system according to claim 1, characterized in that: A slide groove (16) is provided at the top of the driving groove (13), and a sliding block (17) connected to the driving plate (14) is penetrated inside the slide groove (16) for limiting and guiding the driving plate (14).

6. The detection phantom of the radiotherapy device positioning and tracking system according to claim 1, characterized in that: A power supply cavity (20) is provided inside the base (2), a storage battery (21) is provided inside the power supply cavity (20), and the storage battery (21) is electrically connected to the electric telescopic rod.

7. The detection phantom of the radiotherapy device positioning and tracking system according to claim 6, characterized in that: A control button (22) is provided on the base (2), and the control button (22) is electrically connected to the battery (21) and the electric telescopic rod respectively.

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