Radiotherapy body plate device with error correction function

Abstract

The utility model relates to the technical field of radiotherapy body plates, and provides a radiotherapy body plate device with an error correction function, which comprises a device main body, a limiting block and a fixed block, movable grooves are symmetrically arranged on the side wall of the device main body, and a first displacement groove and a second displacement groove are arranged on the side surface of each movable groove. The movable grooves communicate with the first displacement grooves, telescopic rods are installed on the inner walls of the device body, second plastic springs are installed on the outer walls of the telescopic rods, one ends of the telescopic rods are connected with the inner walls of the movable grooves, and pull rods are connected to the other ends of the movable grooves. The end, away from the telescopic rod, of the pull rod extends to the inner wall of the first displacement groove, and the device body is movably provided with a rotating shaft through the first displacement groove and the second displacement groove. Meanwhile, different headrests are inconvenient to replace according to the position of the neck of the patient after the patient lies down.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy body plate technology, specifically to a radiotherapy body plate device with error correction function. Background Technology

[0002] The precision of the radiation plate device is crucial for radiotherapy. Radiation therapy uses high doses of radiation to irradiate tumor tissue, aiming to destroy cancer cells while minimizing damage to surrounding healthy tissue. To ensure that the radiation accurately targets the tumor area, the patient must maintain a very precise position. Even slight postural deviations or movements can cause the radiation to miss the tumor area, potentially affecting treatment effectiveness or increasing side effects.

[0003] Patent specification CN 118750807 A discloses a radiotherapy body plate device with error correction function, which features two limiting slots and four symmetrically arranged limiting slots. The auxiliary positioning plate is made of carbon fiber. This invention provides an auxiliary positioning plate for thoracic and abdominal radiotherapy. The auxiliary positioning plate is placed on the radiotherapy body plate, and because it is secured in the middle of the radiotherapy body plate by the four limiting slots, it cannot move on the radiotherapy body plate. This solves the problem of vacuum pads being movable on the radiotherapy body plate during existing molding processes, and has significant market application and promotion value.

[0004] However, in implementing the relevant technology, the above-mentioned radiotherapy body plate device with error correction function has the following problems: the device is inconvenient to move, correct and fix the vacuum pad, and it is impossible to change different head frames according to the patient's neck position. Therefore, we propose a radiotherapy body plate device with error correction function. Utility Model Content

[0005] This invention proposes a radiotherapy body plate device with error correction function, which solves the problems in related technologies where the position of the auxiliary positioning plate is corrected but its position is not fixed, and it is also inconvenient to change different head frames according to the position of the patient's neck after lying down.

[0006] The technical solution of this utility model is as follows:

[0007] A radiotherapy body plate device with error correction function includes a device body, a limiting block, and a fixing block. The sidewalls of the device body are symmetrically provided with movable grooves. The sides of the movable grooves are provided with a first displacement groove and a second displacement groove. The movable grooves and the first displacement groove are interconnected. Telescopic rods are installed on the inner walls of the device body, and second plastic springs are installed on the outer walls of the telescopic rods. One end of each telescopic rod is connected to the inner wall of a movable groove, and the other end of the movable groove is connected to a pull rod. The end of the pull rod away from the telescopic rod extends to the inner wall of the first displacement groove. A rotating shaft is movably mounted on the device body via the first and second displacement grooves. A limiting block is movably mounted on the outer wall of the rotating shaft. The outer wall of the limiting block is provided with a movable hole. A limiting plate is provided at the middle position of the rotating shaft. A movable block is provided at one end of the rotating shaft. An auxiliary positioning plate is movably mounted on the top of the device body via the limiting block. A mounting block is provided on the sidewalls of the device body, and a head frame is movably mounted on the sidewalls of the mounting blocks.

[0008] Preferably, the mounting block has fixed blocks symmetrically arranged on both sides, the inner wall of the fixed block has a movable cavity, the inner wall of the movable cavity has symmetrically arranged sliding grooves, the fixed block has a clamping plate movably mounted through the movable cavity, and the clamping plate has sliders symmetrically arranged on both sides.

[0009] Preferably, a threaded hole is provided at the middle position of the fixing block, and a lead screw is movably installed on the fixing block through the threaded hole.

[0010] Preferably, the inner wall of the threaded hole is provided with an internal thread, and the outer wall of the lead screw is provided with an internal thread that matches the external thread.

[0011] Preferably, a first plastic spring is symmetrically installed on the inner wall of the movable cavity, and one end of the first plastic spring is connected to the outer wall of the clamping plate.

[0012] Preferably, the limiting plate is semi-cylindrical, the limiting plate is matched with the port position of the pull rod, and the limiting plate is matched with the second displacement groove.

[0013] Preferably, the movable block has a circular cross-section, and the movable block matches the first displacement groove.

[0014] Preferably, the pull rod has an L-shaped structure, and the pull rod fits into the movable groove.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, by setting an auxiliary positioning plate, a limiting block, and a rotating shaft, the auxiliary positioning plate is placed at the top of the main body of the device. The pull rod is manually stretched laterally to compress the telescopic rod and the second plastic spring, so that the front end of the pull rod moves to the inner wall of the movable groove, and the front end of the pull rod moves away from the top of the limiting plate. The rotating shaft moves upward along the second displacement groove and the first displacement groove, so that the rotating shaft drives the limiting block to move upward. When the limiting plate moves to the top of the second displacement groove, the rotating shaft is rotated, so that the plane on one side of the limiting plate rotates downward. The pull rod is released, so that the front end of the pull rod is reset and locked in the lower part of the limiting plate. At this point, there is a gap between the limiting block and the top of the device body. Place the auxiliary positioning plate on the outer wall of the top of the device body, manually pull the pull rod horizontally again, and manually pull the rotating shaft downward to move the limiting block down, so that the limiting block and the top of the device body cooperate to clamp and fix both sides of the auxiliary positioning plate. At the same time, rotate the rotating shaft so that the plane on one side of the limiting plate faces upward. Release the pull rod so that the front end of the pull rod returns to its original position and abuts against the outer wall of the limiting plate, thus limiting and fixing the limiting block and maintaining the fixing effect on the auxiliary positioning plate, so that the vacuum pad can be corrected and fixed on the device body during the molding process.

[0017] 2. In this utility model, through the device body, fixing block, and headrest, different headrests can be used according to the neck position of different patients when they lie on the device body, so that the head fits well with the headrest until it meets the standard requirements. When it is necessary to change the headrest, the screw is rotated clockwise through the external thread on the outer wall of the screw and the internal thread through hole in the middle of the fixing block to pull the clamping plate. The clamping plate is limited by the sliding groove and the slider, so that the clamping plate moves along the sliding groove into the interior of the movable cavity and compresses the first plastic spring. The headrest of other sizes is placed in the middle of the clamping plate. The screw is rotated counterclockwise to move the clamping plate out of the movable cavity so that its outer wall clamps the two sides of the headrest and fixes it. This structure can change the headrest according to the position of the patient's neck and back, so that it fits the neck and back, improving the patient's user experience. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the main structure of the device proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the device proposed in this utility model;

[0021] Figure 3 The present utility model proposes Figure 2 A magnified structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the slide bar structure proposed in this utility model;

[0023] Figure 5 The present utility model proposes Figure 4 A magnified structural diagram at point B;

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the fixing block proposed in this utility model.

[0025] In the diagram: 1. Main body of the device; 2. Auxiliary positioning plate; 3. Limiting block; 4. Mounting block; 5. Fixing block; 6. Head frame; 7. Rotating shaft; 8. Clamping plate; 9. Movable cavity; 10. Slide groove; 11. Sliding block; 12. Movable groove; 13. First displacement groove; 14. First plastic spring; 15. Limiting plate; 16. Movable block; 17. Second displacement groove; 18. Movable hole; 19. Pull rod; 20. Telescopic rod; 21. Second plastic spring; 22. Lead screw. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1: As Figures 1-6 As shown, this embodiment proposes a radiotherapy body plate device with error correction function, including a device body 1, a limiting block 3, and a fixing block 5. The sidewalls of the device body 1 are symmetrically provided with movable grooves 12. The sides of the movable grooves 12 are provided with a first displacement groove 13 and a second displacement groove 17. The movable grooves 12 and the first displacement groove 13 are interconnected. Telescopic rods 20 are installed on the inner walls of the device body 1, and second plastic springs 21 are installed on the outer walls of the telescopic rods 20. One end of the telescopic rod 20 is connected to the inner wall of the movable groove 12, and the other end of the movable groove 12 is connected to a pull rod. 19. The end of the pull rod 19 away from the telescopic rod 20 extends to the inner wall of the first displacement groove 13. The main body of the device 1 is movably mounted with a rotating shaft 7 through the first displacement groove 13 and the second displacement groove 17. A limiting block 3 is movably mounted on the outer wall of the rotating shaft 7. A movable hole 18 is provided on the outer wall of the limiting block 3. A limiting plate 15 is provided at the middle position of the rotating shaft 7. A movable block 16 is provided at one end of the rotating shaft 7. An auxiliary positioning plate 2 is movably mounted on the top of the main body of the device 1 through the limiting block 3. An installation block 4 is provided on the side wall of the main body of the device 1. A head frame 6 is movably mounted on the side wall of the installation block 4.

[0028] In this embodiment, the limiting plate 15 is a semi-cylinder, the limiting plate 15 is matched with the port position of the pull rod 19, and the limiting plate 15 is matched with the second displacement groove 17.

[0029] In this embodiment, the cross-section of the movable block 16 is circular, and the movable block 16 matches the first displacement groove 13.

[0030] In this embodiment, the pull rod 19 has an L-shaped structure, and the pull rod 19 fits into the movable groove 12.

[0031] Specific examples Figures 2-5 As shown, when using this structure, the auxiliary positioning plate 2 is placed at the top of the main body 1 of the device. The pull rod 19 is manually stretched laterally to compress the telescopic rod 20 and the second plastic spring 21, causing the front end of the pull rod 19 to move to the inner wall of the movable groove 12, so that the front end of the pull rod 19 moves away from the top of the limiting plate 15. The rotating shaft 7 is moved upward along the second displacement groove 17 and the first displacement groove 13, so that the rotating shaft 7 drives the limiting block 3 to move upward. When the limiting plate 15 moves to the top of the second displacement groove 17, the rotating shaft 7 is rotated, so that the plane on one side of the limiting plate 15 rotates downward. The pull rod 19 is then released, so that the front end of the pull rod 19 is reset and locked below the limiting plate 15. At this time, there is a gap between the limiting block 3 and the top of the device body 1. Place the auxiliary positioning plate 2 on the outer wall of the top of the device body 1, manually pull the pull rod 19 horizontally again, and manually pull the rotating shaft 7 downward to move the limiting block 3 down, so that the limiting block 3 and the top of the device body 1 cooperate to clamp and fix the two sides of the auxiliary positioning plate 2. At the same time, rotate the rotating shaft 7 so that the plane on one side of the limiting plate 15 faces upward. Release the pull rod 19 so that the front end of the pull rod 19 returns to its original position and abuts against the outer wall of the limiting plate 15, thereby limiting and fixing the limiting block 3 and maintaining the fixing effect on the auxiliary positioning plate 2, so that the vacuum pad can be corrected and fixed on the device body 1 during the molding process.

[0032] Example 2: Fixing blocks 5 are symmetrically arranged on both sides of the mounting block 4. The inner wall of the fixing block 5 is provided with a movable cavity 9. The inner wall of the movable cavity 9 is symmetrically provided with a sliding groove 10. The fixing block 5 is movably mounted with a clamping plate 8 through the movable cavity 9. The clamping plate 8 is symmetrically provided with sliders 11 on both sides.

[0033] In this embodiment, a threaded hole is provided in the middle position of the fixing block 5, and the screw 22 is movably installed on the fixing block 5 through the threaded hole.

[0034] In this embodiment, the inner wall of the threaded hole is provided with an internal thread, and the outer wall of the lead screw 22 is provided with an internal thread that matches the external thread.

[0035] In this embodiment, a first plastic spring 14 is symmetrically installed on the inner wall of the movable cavity 9, and one end of the first plastic spring 14 is connected to the outer wall of the clamping plate 8.

[0036] Specific examples Figure 1 and Figure 6As shown, when using this structure, different headrests 6 can be used depending on the patient's neck position when different patients are lying on the main body 1 of the device, so that the head fits well with the headrest 6 until it meets the standard requirements. When it is necessary to replace the headrest 6, the screw 22 is rotated clockwise through the external thread on the outer wall of the screw 22 and the internal thread through hole in the middle of the fixing block 5 to pull the clamping plate 8. The clamping plate 8 is moved along the sliding groove 10 into the interior of the movable cavity 9 by the limiting effect of the sliding groove 10 and the slider 11, while compressing the first plastic spring 14. The headrest 6 of other sizes is placed in the middle position of the clamping plate 8. The screw 22 is rotated counterclockwise to move the clamping plate 8 out of the interior of the movable cavity 9 so that its outer wall clamps the two sides of the headrest 6 and fixes it. This structure can replace the headrest 6 according to the position of the patient's neck and back, so that it fits the neck and back, improving the patient's user experience.

[0037] Working principle: In use, place the auxiliary positioning plate 2 at the top of the main body 1 of the device, manually pull the pull rod 19 horizontally to compress the telescopic rod 20 and the second plastic spring 21, so that the front end of the pull rod 19 moves to the inner wall of the movable groove 12, so that the front end of the pull rod 19 moves away from the top of the limiting plate 15, and moves the rotating shaft 7 upward along the second displacement groove 17 and the first displacement groove 13, so that the rotating shaft 7 drives the limiting block 3 to move upward. When the limiting plate 15 moves to the top of the second displacement groove 17, rotate the rotating shaft 7, so that the plane on one side of the limiting plate 15 rotates downward, and releases. Open pull rod 19 so that its front end is locked below the limiting plate 15. At this time, there is a gap between the limiting block 3 and the top of the device body 1. Place the auxiliary positioning plate 2 on the outer wall of the top of the device body 1. Manually pull pull rod 19 horizontally again and manually pull the rotating shaft 7 downward to move the limiting block 3 downward. This allows the limiting block 3 and the top of the device body 1 to clamp and fix both sides of the auxiliary positioning plate 2. At the same time, rotate the rotating shaft 7 so that one side of the limiting plate 15 faces upward. Release pull rod 19 so that its front end is locked against the limiting plate 15. The outer wall of the device limits and fixes the limiting block 3, maintaining the fixation effect on the auxiliary positioning plate 2. This allows the vacuum pad to be corrected and fixed on the main body 1 of the device during the molding process. Simultaneously, when different patients lie on the main body 1, different headrests 6 can be used according to the patient's neck position to ensure a good fit between the head and the headrest 6 until the standard requirements are met. When the headrest 6 needs to be replaced, the screw 22 is rotated clockwise through the external thread on the outer wall of the screw 22 and the internal thread through hole in the middle of the fixing block 5 to pull the clamping plate 8, utilizing the sliding groove 1. The limiting effect of the slider 11 on the clamping plate 8 causes the clamping plate 8 to move along the slide groove 10 into the movable cavity 9 while compressing the first plastic spring 14. The head frame 6 of other sizes is placed in the middle position of the clamping plate 8. The screw 22 is rotated counterclockwise to move the clamping plate 8 out of the movable cavity 9 so that its outer wall clamps the two sides of the head frame 6 and fixes it. This device can correct the position of the auxiliary positioning plate 2 while facilitating fixation. Moreover, this device can replace the head frame 6 according to the position of the patient's neck and back to make it fit the neck and back, improving the patient's user experience.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A radiotherapy body plate device with error correction function, comprising a device body (1), a limiting block (3), and a fixing block (5), characterized in that: The main body (1) of the device has symmetrically arranged movable grooves (12) on its side walls. The movable grooves (12) have a first displacement groove (13) and a second displacement groove (17) on their sides. The movable grooves (12) and the first displacement groove (13) are interconnected. Telescopic rods (20) are installed on the inner walls of the main body (1). Second plastic springs (21) are installed on the outer walls of the telescopic rods (20). One end of the telescopic rod (20) is connected to the inner wall of the movable groove (12), and the other end of the movable groove (12) is connected to a pull rod (19). The end of the pull rod (19) away from the telescopic rod (20) extends to the first displacement groove. The inner wall of the device body (1) is provided with a rotating shaft (7) through the first displacement groove (13) and the second displacement groove (17). A limiting block (3) is movably installed on the outer wall of the rotating shaft (7). An active hole (18) is provided on the outer wall of the limiting block (3). A limiting plate (15) is provided at the middle position of the rotating shaft (7). An active block (16) is provided at one end of the rotating shaft (7). An auxiliary positioning plate (2) is movably installed on the top of the device body (1) through the limiting block (3). An installation block (4) is provided on the side wall of the device body (1). A head frame (6) is movably installed on the side wall of the installation block (4).

2. The radiotherapy plate device with error correction function according to claim 1, characterized in that, The mounting block (4) is symmetrically provided with fixing blocks (5) on both sides. The inner wall of the fixing block (5) is provided with a movable cavity (9). The inner wall of the movable cavity (9) is symmetrically provided with a sliding groove (10). The fixing block (5) is movably installed with a clamping plate (8) through the movable cavity (9). The clamping plate (8) is symmetrically provided with sliders (11) on both sides.

3. The radiotherapy body plate device with error correction function according to claim 2, characterized in that, A threaded hole is provided in the middle of the fixing block (5), and a lead screw (22) is movably installed on the fixing block (5) through the threaded hole.

4. The radiotherapy plate device with error correction function according to claim 3, characterized in that, The inner wall of the threaded hole is provided with an internal thread, and the outer wall of the lead screw (22) is provided with an internal thread that matches the external thread.

5. A radiotherapy plate device with error correction function according to claim 3, characterized in that, The inner wall of the active cavity (9) is symmetrically equipped with a first plastic spring (14), and one end of the first plastic spring (14) is connected to the outer wall of the clamp (8).

6. A radiotherapy plate device with error correction function according to claim 5, characterized in that, The limiting plate (15) is a semi-cylinder, and the limiting plate (15) matches the port position of the pull rod (19). The limiting plate (15) is matched with the second displacement groove (17).

7. A radiotherapy plate device with error correction function according to claim 6, characterized in that, The movable block (16) has a circular cross-section and is matched with the first displacement groove (13).

8. A radiotherapy plate device with error correction function according to claim 5, characterized in that, The pull rod (19) has an L-shaped structure and the pull rod (19) fits into the movable groove (12).

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