Tumor radiotherapy non-irradiation area protection device

Abstract

The invention discloses a tumor radiotherapy non-irradiation area protection device, and relates to the cervical cancer radiotherapy protection field, and the tumor radiotherapy non-irradiation area protection device comprises a mounting frame, and the interior of the mounting frame is fixedly connected with a first telescopic driving member. The first moving mechanism and the second moving mechanism can respectively drive the moving frame and the adjusting plate to move back and forth and left and right, so that the through hole is accurately positioned to the radiotherapy position of the cervical cancer patient. The first rotation driving piece can drive the adjusting lead plate to rotate, so that the adjusting holes with proper sizes are aligned with cancer cells. The blocking adjusting mechanism further optimizes protection, and when a gap exists between the adjusting hole and the cancer cells, the driving mechanism drives the transmission ring to rotate, so that the second telescopic driving piece drives the pushing block to push the lead block plate to move, and the gap is filled. Thus, the first lead plate, the second lead plate and the adjusting lead plate act together to ensure that radiotherapy rays irradiate cancer cells only through the adjusting holes, so that the rays are effectively prevented from damaging surrounding healthy tissues, and adverse effects of radiotherapy on patients are reduced.

Description

Technical Field

[0001] This invention relates to radiotherapy protection technology for cervical cancer, specifically to a device for protecting non-irradiated areas during tumor radiotherapy. Background Technology

[0002] In the radiotherapy treatment of cervical cancer, it is crucial to precisely irradiate the cancerous areas to destroy the diseased tissue. However, how to effectively protect healthy tissues in non-irradiated areas from the damage of radiotherapy rays has always been an important problem that needs to be solved in clinical treatment.

[0003] Existing radiotherapy protection techniques have limitations in addressing cervical cancer radiotherapy. For cancer cells of varying sizes, current technologies lack effective adaptive protection methods. Cancer cells differ in size, and traditional protective devices cannot be flexibly adjusted to suit the specific size of the cancer cells. This results in ineffective protection of the surrounding healthy tissue, causing significant harm to patients during radiotherapy and affecting treatment outcomes.

[0004] In summary, existing radiotherapy protection technologies for cervical cancer are insufficient to meet the needs of effective protection of healthy tissue in non-irradiated areas during clinical treatment. There is an urgent need for a tumor radiotherapy non-irradiation area protection device that can be adapted to different cancer cell sizes in order to improve the safety and effectiveness of radiotherapy for cervical cancer. Summary of the Invention

[0005] The purpose of this invention is to provide a device for protecting non-irradiated areas during tumor radiotherapy, in order to solve the problem that existing technologies cannot effectively protect non-irradiated tumor tissue.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a non-irradiated area protection device for tumor radiotherapy, comprising a mounting frame, a first telescopic drive member fixedly connected inside the mounting frame, a transmission frame fixedly connected to the output end of the first telescopic drive member, a movable frame disposed inside the transmission frame, a first movable mechanism connected to the transmission frame connected to the movable frame, the first movable mechanism being used to drive the movable frame to move, a first lead plate fixedly connected to the movable frame, an adjusting plate slidably connected inside the movable frame, a second movable mechanism connected to the movable frame connected to the adjusting plate, the second movable mechanism being used to drive the adjusting plate to move, a first rotation drive member fixedly connected to the adjusting plate, a mounting shaft fixedly connected to the output end of the first rotation drive member, a connecting threaded sleeve fixedly connected to the bottom end of the mounting shaft, a connecting bolt threadedly connected to the connecting threaded sleeve, an adjusting lead plate fixedly connected to the bottom end of the connecting bolt, a plurality of adjusting holes provided on the adjusting lead plate, a second lead plate fixedly connected to the bottom of the adjusting plate, and a through hole provided on the top of the adjusting plate;

[0007] The adjustment plate is provided with a blocking adjustment mechanism communicating with the through hole. The blocking adjustment mechanism is used to adjust the size of the adjustment hole. The bottom of the transmission frame is provided with a clamping and fixing mechanism, which is used to fix the patient.

[0008] Furthermore, the blocking adjustment mechanism includes a functional cavity opened on the adjustment plate, a plurality of lead blocks are slidably connected in the functional cavity, a push plate is fixedly connected to the top of the lead blocks, a transmission ring is rotatably connected in the functional cavity, a second telescopic drive member is fixedly connected to the transmission ring, a push block is fixedly connected to the output end of the second telescopic drive member, a connecting iron block is fixedly connected to one side of the lead blocks, a plurality of electromagnet blocks are fixedly connected in the functional cavity, and a drive mechanism connected to the adjustment plate is driven to rotate the transmission ring on the outer surface of the transmission ring.

[0009] Furthermore, the driving mechanism includes a second rotational driving member fixedly connected to the adjusting plate. The output end of the second rotational driving member is fixedly connected to a driving shaft. A driving gear is fixedly sleeved on the outer surface of the driving shaft. A transmission gear ring is meshed with the outer surface of the driving gear and is fixedly sleeved on the transmission ring.

[0010] Furthermore, the first moving mechanism includes a third rotating drive component fixedly connected to the transmission frame. The output end of the third rotating drive component is fixedly connected to a first threaded rod rotatably connected to the transmission frame. The outer surface of the first threaded rod is threadedly fitted with a first connecting block fixedly connected to the moving frame. A guide rod fixedly connected to the transmission frame is slidably connected to the moving frame.

[0011] Furthermore, the second moving mechanism includes a fourth rotation drive member fixedly connected to the moving frame. The output end of the fourth rotation drive member is fixedly connected to a second threaded rod. The outer surface of the second threaded rod is threadedly fitted with a second connecting block fixedly connected to an adjusting plate. A guide rod fixedly connected to the moving frame is slidably connected to the adjusting plate.

[0012] Furthermore, the clamping and fixing mechanism includes a mounting plate fixedly connected to the transmission frame, a fifth rotation drive component fixedly connected to one side of the mounting plate, a bidirectional threaded rod rotatably connected to the output end of the fifth rotation drive component, and two clamping plates threadedly connected to the bidirectional threaded rod.

[0013] Furthermore, a rubber buffer pad is fixedly connected to one side of the clamping plate.

[0014] Furthermore, fixing plates are fixedly connected to both sides of the mounting frame, and fixing holes are provided on the fixing plates.

[0015] Compared with the prior art, the non-irradiation area protection device for tumor radiotherapy provided by the present invention has the following beneficial effects:

[0016] This non-irradiation area protection device for tumor radiotherapy significantly reduces the damage of radiotherapy rays to healthy tissues through multiple precise adjustments. The first and second moving mechanisms respectively drive the moving frame and adjusting plate to move forward, backward, left, and right, ensuring the through-hole is precisely positioned for radiotherapy in cervical cancer patients. The first rotating drive component rotates the adjusting lead plate, aligning the appropriately sized adjusting hole with the cancer cells. The blocking adjustment mechanism further optimizes protection; when a gap exists between the adjusting hole and the cancer cells, the drive mechanism rotates the transmission ring, causing the second telescopic drive component to move the push block, which then moves the lead plate to fill the gap. Thus, the first lead plate, the second lead plate, and the adjusting lead plate work together to ensure that radiotherapy rays only irradiate cancer cells through the adjusting hole, effectively blocking radiation damage to surrounding healthy tissues and reducing the adverse effects of radiotherapy on patients.

[0017] This protective device is highly flexible and adaptable to the radiotherapy protection needs of cancer cells of different sizes. Firstly, the adjustable lead plate has multiple adjustment holes of different sizes. Depending on the size of the patient's cancer cells, the first rotating drive rotates the lead plate, causing the corresponding adjustment hole to be positioned below the through hole, thus meeting the radiotherapy positioning requirements for cancer cells of different sizes. Secondly, the adjustable lead plate with different sized adjustment holes can be replaced using connecting bolts, further expanding its applicability. Furthermore, the blocking adjustment mechanism can fill the gap between the adjustment hole and the cancer cell as needed, achieving precise protection regardless of the size and location of the cancer cells. This flexible adaptability allows the protective device to be widely used in radiotherapy for different patients, enhancing its clinical practicality and value. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a first perspective view of the internal structure of the present invention;

[0022] Figure 4 This is a second perspective view of the internal structure of the present invention;

[0023] Figure 5 This is a top view of the internal structure of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0025] Figure 7 For the present invention Figure 4 A magnified view of B in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Mounting frame; 2. First telescopic drive component; 3. Transmission frame; 4. Moving frame; 5. First lead plate; 6. Adjusting plate; 7. First rotation drive component; 8. Mounting shaft; 9. Connecting threaded sleeve; 10. Connecting bolt; 11. Adjusting lead plate; 12. Adjusting hole; 13. Second lead plate; 14. Through hole; 21. Functional cavity; 22. Lead block plate; 23. Push plate; 24. Transmission ring; 25. Second telescopic drive component; 26. Push block; 27. Connecting iron block; 28. Electromagnetic block; 31. Second rotation drive component; 32. Drive shaft; 33. Drive gear; 34. Transmission gear ring; 41. Third rotation drive component; 42. First threaded rod; 43. First connecting block; 51. Fourth rotation drive component; 52. Second threaded rod; 53. Second connecting block; 61. Mounting plate; 62. Fifth rotation drive component; 63. Bidirectional threaded rod; 64. Clamping plate; 65. Rubber buffer pad. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] Please see Figures 1 to 7As shown, this invention provides a protective device for non-irradiated areas during tumor radiotherapy, including a mounting frame 1. A first telescopic drive component 2, which is an electric telescopic rod, is fixedly connected inside the mounting frame 1. A transmission frame 3 is fixedly connected to the output end of the first telescopic drive component 2. A movable frame 4 is disposed inside the transmission frame 3. A first moving mechanism connected to the transmission frame 3 is connected to the movable frame 4, and the first moving mechanism is used to drive the movable frame 4 to move. A first lead plate 5 is fixedly connected to the movable frame 4. An adjusting plate 6 is slidably connected inside the movable frame 4. A second moving mechanism connected to the movable frame 4 is connected to the adjusting plate 6, and the second moving mechanism is used to drive the adjusting plate 5 to move. The plate 6 moves, and a first rotation drive 7 is fixedly connected to the plate 6. The first rotation drive 7 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the servo motor to rotate forward and backward and rotate at different angles. The output end of the first rotation drive 7 is fixedly connected to a mounting shaft 8. The bottom end of the mounting shaft 8 is fixedly connected to a connecting threaded sleeve 9. The connecting threaded sleeve 9 is internally threaded with a connecting bolt 10. The bottom end of the connecting bolt 10 is fixedly connected to an adjusting lead plate 11. Multiple adjusting holes 12 are provided on the adjusting lead plate 11. The bottom of the adjusting plate 6 is fixedly connected to a second lead plate 13. The top of the adjusting plate 6 is provided with a through hole 14.

[0031] The adjusting plate 6 is provided with a blocking adjusting mechanism that communicates with the through hole 14. The blocking adjusting mechanism is used to adjust the size of the adjusting hole 12. The bottom of the transmission frame 3 is provided with a clamping and fixing mechanism, which is used to fix the patient.

[0032] The first moving mechanism includes a third rotation drive component 41 fixedly connected to the transmission frame 3. The third rotation drive component 41 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the third rotation drive component 41 is fixedly connected to a first threaded rod 42 rotatably connected to the transmission frame 3. The outer surface of the first threaded rod 42 is threadedly fitted with a first connecting block 43 fixedly connected to the moving frame 4. A guide rod fixedly connected to the transmission frame 3 is slidably connected to the moving frame 4. The third rotation drive component 41 drives the first threaded rod 42 to rotate, and the first threaded rod 42 drives the first connecting block 43 and the transmission frame 3 to move back and forth.

[0033] The second moving mechanism includes a fourth rotation drive component 51 fixedly connected to the moving frame 4. The fourth rotation drive component 51 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. A second threaded rod 52 is fixedly connected to the output end of the fourth rotation drive component 51. A second connecting block 53 fixedly connected to the adjusting plate 6 is threaded onto the outer surface of the second threaded rod 52. A guide rod fixedly connected to the moving frame 4 is slidably connected to the adjusting plate 6. The fourth rotation drive component 51 drives the second threaded rod 52 to rotate, and the second threaded rod 52 drives the adjusting plate 6 to move left and right.

[0034] The clamping and fixing mechanism includes a mounting plate 61 fixedly connected to the transmission frame 3. A fifth rotation drive component 62 is fixedly connected to one side of the mounting plate 61. The fifth rotation drive component 62 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the servo motor to rotate forward and backward and rotate at different angles. A bidirectional threaded rod 63 that is rotatably connected to the mounting plate 61 is fixedly connected to the output end of the fifth rotation drive component 62. Two clamping plates 64 are threadedly connected to the bidirectional threaded rod 63.

[0035] A rubber buffer pad 65 is fixedly connected to one side of the clamping plate 64.

[0036] Both sides of the mounting frame 1 are fixedly connected to fixing plates, and fixing holes are provided on the fixing plates.

[0037] The mounting frame 1 is fixedly installed on the radiotherapy bed using a fixing plate. The patient then lies on the radiotherapy bed, moving to the radiotherapy position. The fifth rotary drive 62 drives the bidirectional threaded rod 63 to rotate, causing the two clamping plates 64 to move closer together, clamping and fixing the patient for stable positioning. The first moving mechanism then drives the transmission frame 3 to move back and forth, while the second moving mechanism drives the adjusting plate 6 to move left and right, moving the through hole 14 on the adjusting plate 6 to the required radiotherapy position for the cervical cancer patient. Finally, depending on the size of the patient's cancer cells, the first rotary drive 7 drives the mounting shaft 8 to rotate, which in turn drives the connecting threaded sleeve 9. The connecting bolt 10 and the adjusting lead plate 11 are rotated so that the corresponding size adjusting hole 12 is rotated below the through hole 14, so that the radiation from the radiotherapy can only irradiate the cancer cells through the adjusting hole 12 on the adjusting lead plate 11. Then, the first lead plate 5, the second lead plate 13 and the adjusting lead plate 11 block the radiation from the radiotherapy, effectively reducing the radiation from the radiotherapy to damage the healthy tissue around the cancer cells, and further reducing the harm of radiotherapy to the patient. At the same time, by adjusting the multiple adjusting holes 12, the adjusting lead plate 11 with different sizes of adjusting holes 12 can also be replaced by the connecting bolt 10, so as to achieve protection against radiotherapy irradiation of cancer cells of different sizes, and further improve the applicability of the protective device.

[0038] Example 2

[0039] Based on Example 1, please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the blocking adjustment mechanism includes a functional cavity 21 opened on the adjustment plate 6. Multiple lead block plates 22 are slidably connected in the functional cavity 21. A push plate 23 is fixedly connected to the top of the lead block plate 22. A transmission ring 24 is rotatably connected in the functional cavity 21. A second telescopic drive member 25 is fixedly connected to the transmission ring 24. The second telescopic drive member 25 is an electric telescopic rod. A push block 26 is fixedly connected to the output end of the second telescopic drive member 25. A connecting iron block 27 is fixedly connected to one side of the lead block plate 22. Multiple electromagnet blocks 28 are fixedly connected in the functional cavity 21. A drive mechanism connected to the adjustment plate 6 is connected to the outer surface of the transmission ring 24. The drive mechanism is used to drive the transmission ring 24 to rotate.

[0040] The drive mechanism includes a second rotation drive component 31 fixedly connected to the adjustment plate 6. The second rotation drive component 31 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. A drive shaft 32 is fixedly connected to the output end of the second rotation drive component 31. A drive gear 33 is fixedly sleeved on the outer surface of the drive shaft 32. A transmission gear ring 34 is meshed with the outer surface of the drive gear 33 and fixedly sleeved on the transmission ring 24. The second rotation drive component 31 drives the drive shaft 32 to rotate, and the drive shaft 32 drives the transmission ring 24 to rotate through the drive gear 33 and the transmission gear ring 34.

[0041] When the adjustment hole 12 on the adjusting lead plate 11 is rotated to the position of the cancer cell, placing the cancer cell in the middle of the adjustment hole 12, there is a gap between the cancer cell and the inner edge of the adjustment hole 12. There will be healthy tissue in this gap. At this time, the drive mechanism drives the transmission ring 24 to rotate, and the transmission ring 24 drives the second telescopic drive member 25 to rotate, so that the second telescopic drive member 25 drives the push block 26 to the corresponding position of the lead plate 22. Then, the second telescopic drive member 25 drives the push block 26 to move, and the push block 26 pushes the push plate 23 and the adjusting lead plate 11 to move to the shielding position. Then, it drives the next adjusting lead plate 22 to move to the corresponding shielding position, thereby filling the gap and further improving the shielding of radiotherapy rays, which greatly improves the protection of healthy tissue around the cancer cells.

[0042] Working principle: The mounting frame 1 is fixedly installed on the radiotherapy bed by the fixing plate. The patient then lies on the radiotherapy bed and is moved to the radiotherapy position. Subsequently, the fifth rotation drive 62 drives the bidirectional threaded rod 63 to rotate. The bidirectional threaded rod 63 drives the two clamping plates 64 to move closer together, clamping and fixing the patient for stable positioning. Then, the first moving mechanism drives the transmission frame 3 to move back and forth, while the second moving mechanism drives the adjusting plate 6 to move left and right, so that the through hole 14 on the adjusting plate 6 is moved to the radiotherapy position required for the cervical cancer patient. Then, according to the size of the patient's cancer cells, the first rotation drive 7 drives the mounting shaft 8 to rotate, and the mounting shaft 8 drives the connecting threaded sleeve 9. The connecting bolt 10 and the adjusting lead plate 11 are rotated so that the corresponding size adjusting hole 12 is rotated below the through hole 14, so that the radiation from the radiotherapy can only irradiate the cancer cells through the adjusting hole 12 on the adjusting lead plate 11. Then, the first lead plate 5, the second lead plate 13 and the adjusting lead plate 11 block the radiation from the radiotherapy, effectively reducing the radiation from the radiotherapy to damage the healthy tissue around the cancer cells, and further reducing the harm of radiotherapy to the patient. At the same time, by adjusting the multiple adjusting holes 12, the adjusting lead plate 11 with different sizes of adjusting holes 12 can also be replaced by the connecting bolt 10, so as to achieve protection against radiotherapy irradiation of cancer cells of different sizes, and further improve the applicability of the protective device.

[0043] When the adjustment hole 12 on the adjusting lead plate 11 is rotated to the position of the cancer cell, placing the cancer cell in the middle of the adjustment hole 12, there is a gap between the cancer cell and the inner edge of the adjustment hole 12. There will be healthy tissue in this gap. At this time, the drive mechanism drives the transmission ring 24 to rotate, and the transmission ring 24 drives the second telescopic drive member 25 to rotate, so that the second telescopic drive member 25 drives the push block 26 to the corresponding position of the lead plate 22. Then, the second telescopic drive member 25 drives the push block 26 to move, and the push block 26 pushes the push plate 23 and the adjusting lead plate 11 to move to the shielding position. Then, it drives the next adjusting lead plate 22 to move to the corresponding shielding position, thereby filling the gap and further improving the shielding of radiotherapy rays, which greatly improves the protection of healthy tissue around the cancer cells.

[0044] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for protecting non-irradiated areas in tumor radiotherapy, characterized in that, The application relates to a lead plate adjusting device, which comprises a mounting frame (1), a first telescopic driving element (2) fixedly connected in the mounting frame (1), a transmission frame (3) fixedly connected to the output end of the first telescopic driving element (2), a moving frame (4) arranged in the transmission frame (3), a first moving mechanism connected with the transmission frame (3) and arranged on the moving frame (4), a first lead plate (5) fixedly connected to the moving frame (4), a slidingly connected adjusting plate (6) arranged in the moving frame (4), a second moving mechanism connected with the moving frame (4) and arranged on the adjusting plate (6), a first rotating driving element (7) fixedly connected to the adjusting plate (6), a mounting shaft (8) fixedly connected to the output end of the first rotating driving element (7), a connecting threaded sleeve (9) fixedly connected to the bottom end of the mounting shaft (8), a connecting bolt (10) threadedly connected in the connecting threaded sleeve (9), an adjusting lead plate (11) fixedly connected to the bottom end of the connecting bolt (10), a plurality of adjusting holes (12) arranged on the adjusting lead plate (11), a second lead plate (13) fixedly connected to the bottom of the adjusting plate (6), and a through hole (14) arranged on the top of the adjusting plate (6). A blocking adjusting mechanism is arranged on the adjusting plate (6) and communicates with the through hole (14), the blocking adjusting mechanism is used for adjusting the size of the adjusting hole (12), and a clamping fixing mechanism is arranged on the bottom of the transmission frame (3) and used for fixing a patient.

2. The device for protecting non-irradiated area in tumor radiotherapy according to claim 1, characterized in that, The blocking adjusting mechanism comprises a functional cavity (21) arranged on the adjusting plate (6), a plurality of lead block plates (22) slidingly connected in the functional cavity (21), a pushing plate (23) fixedly connected to the top of the lead block plate (22), a transmission ring (24) rotatably connected in the functional cavity (21), a second telescopic driving element (25) fixedly connected to the transmission ring (24), a pushing block (26) fixedly connected to the output end of the second telescopic driving element (25), a connecting iron block (27) fixedly connected to one side of the lead block plate (22), a plurality of electromagnet blocks (28) fixedly connected in the functional cavity (21), and a driving mechanism connected with the adjusting plate (6) and transmissionally connected to the outer surface of the transmission ring (24), the driving mechanism is used for driving the transmission ring (24) to rotate.

3. The device for protecting non-irradiated area in tumor radiotherapy according to claim 2, characterized in that, The driving mechanism comprises a second rotating driving element (31) fixedly connected with the adjusting plate (6), a driving shaft (32) fixedly connected to the output end of the second rotating driving element (31), a driving gear (33) fixedly sleeved to the outer surface of the driving shaft (32), and a transmission gear ring (34) fixedly sleeved to the transmission ring (24) and meshingly connected to the outer surface of the driving gear (33).

4. The device for protecting non-irradiated area in tumor radiotherapy according to claim 1, characterized in that, The first moving mechanism comprises a third rotating driving element (41) fixedly connected with the transmission frame (3), an output end of the third rotating driving element (41) is fixedly connected with a first threaded rod (42) rotationally connected with the transmission frame (3), and the outer surface of the first threaded rod (42) is threadedly matched with a first connecting block (43) fixedly connected with the moving frame (4).

5. The device for protecting non-irradiated area in tumor radiotherapy according to claim 1, characterized in that, The second moving mechanism comprises a fourth rotating driving element (51) fixedly connected with the moving frame (4), an output end of the fourth rotating driving element (51) is fixedly connected with a second threaded rod (52), the outer surface of the second threaded rod (52) is threadedly matched with a second connecting block (53) fixedly connected with the adjusting plate (6), and the adjusting plate (6) is slidably connected with a guide rod fixedly connected with the moving frame (4).

6. The device for protecting non-irradiated area in tumor radiotherapy according to claim 1, characterized in that, The clamping and fixing mechanism comprises a mounting plate (61) fixedly connected with the transmission frame (3), one side of the mounting plate (61) is fixedly connected with a fifth rotating driving element (62), an output end of the fifth rotating driving element (62) is fixedly connected with a bidirectional threaded rod (63) rotationally connected with the mounting plate (61), and the bidirectional threaded rod (63) is threadedly matched with two clamping plates (64).

7. The device for protecting non-irradiated area in tumor radiotherapy according to claim 6, characterized in that, One side of the clamping plate (64) is fixedly connected with a rubber buffer pad (65).

8. The device for protecting non-irradiated area in tumor radiotherapy according to claim 1, characterized in that, Both sides of the mounting frame (1) are fixedly connected with fixed plates, and the fixed plates are provided with fixed holes.

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