Upper limb abduction fixing device for breast cancer radiotherapy

Abstract

The upper limb abduction fixing device for breast cancer radiotherapy comprises a connecting assembly, an adjusting assembly is arranged above the connecting assembly, and a lifting frame is arranged at the top end of the adjusting assembly; an angle adjusting assembly is arranged at the position, corresponding to the lifting frame, of the adjusting assembly and comprises a frame assembly and a positioning assembly, an adjusting frame is arranged in the frame assembly, the positioning assembly comprises a threaded column, a limiting block is arranged on the surface wall of the threaded column, and a limiting hole is formed in the intersection position of the adjusting frame and the limiting block. When the angle of the positioning assembly and the frame assembly is changed, the connection between the limiting block and the limiting holes at different positions is changed, the abduction angle of the upper limb of a patient can be accurately adjusted and fixed through the synergistic effect of the angle adjusting assembly and the adjusting assembly, it is ensured that the upper limb of the patient is positioned consistently during radiotherapy each time, and the radiotherapy effect is improved. Therefore, the irradiation accuracy of the thoracic wall subclavian lymph drainage area and the thoracic wall subclavian lymph drainage area is improved, and cancer cells can be effectively killed through accurate irradiation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an upper limb abduction fixation device for breast cancer radiotherapy. Background Art

[0002] In the comprehensive treatment system of breast cancer, radiotherapy is a crucial part. Especially for radiotherapy of the supraclavicular and infraclavicular lymphatic drainage areas of the chest wall, it plays a vital role in controlling local recurrence and metastasis of breast cancer. When performing radiotherapy in this area, the patient is required to lift the upper limb and maintain a fixed posture so as to accurately irradiate the target area.

[0003] Currently, breast cradles are commonly used clinically to assist patients in fixing the upper limb. However, the existing breast cradles have many defects that cannot be ignored.

[0004] In terms of fixation performance, the existing breast cradles cannot provide a sufficiently strong and stable fixing force. Breast cancer radiotherapy usually needs to be carried out multiple times, and each radiotherapy session is relatively long. During the process of the patient maintaining the upper limb lifting posture for a long time, due to natural fatigue and slight movement of the body, it is very easy for the position of the upper limb to change. And the breast cradle is difficult to effectively restrain this position change, making the patient's upper limb unable to always maintain the ideal radiotherapy position.

[0005] In terms of ensuring angle consistency, the existing breast cradles lack a precise angle positioning and locking mechanism. During different radiotherapy courses, it is very difficult to ensure that the abduction angle of the patient's upper limb is exactly the same each time. This is because the cradle does not have clear and easy-to-operate angle markings and fixing devices, and doctors can only roughly adjust the upper limb angle based on experience during each positioning, unable to achieve precise repetition.

[0006] These problems of poor fixation and inconsistent angles directly lead to a reduction in the irradiation accuracy of the supraclavicular and infraclavicular lymphatic regions. The accuracy of radiotherapy has a profound impact on the treatment effect and the prognosis of the patient. Deviation of the irradiation position may cause some cancer cells not to receive sufficient radiation dose, thus unable to be effectively killed, increasing the risk of tumor recurrence. At the same time, inaccurate irradiation may also accidentally damage the surrounding normal tissues and organs, causing a series of complications such as skin damage and lung damage, which not only bring additional pain to the patient, but also may affect the process and effect of subsequent treatment.

[0007] In addition, the existing breast cradles may not fully consider the comfort of the patient in design. Maintaining an uncomfortable posture for a long time will also affect the patient's enthusiasm and compliance in cooperating with the treatment. In summary, it is extremely urgent to develop a more advanced, precise and comfortable upper limb abduction fixation device for breast cancer radiotherapy to meet the increasing precision requirements of clinical breast cancer radiotherapy. Summary of the Invention

[0008] To overcome the existing problems, an upper limb abduction fixation device for breast cancer radiotherapy is provided in an embodiment of the present application. Through the synergistic effect of the angle adjustment component and the adjustment component, the abduction angle of the patient's upper limb can be accurately adjusted and fixed, ensuring that the position of the patient's upper limb is consistent during each radiotherapy, thereby improving the accuracy of irradiating the lymphatic drainage area above and below the clavicle of the chest wall. Precise irradiation can effectively kill cancer cells, improve the treatment effect, and at the same time reduce unnecessary irradiation of surrounding normal tissues and reduce the risk of complications. The angle adjustment component includes a frame component and a positioning component, and the positioning component penetrates through the frame component.

[0009] The technical solution adopted by the embodiment of the present application to solve its technical problems is:

[0010] An upper limb abduction fixation device for breast cancer radiotherapy includes a connection component. Above the connection component, there is an adjustment component. At the top of the adjustment component, there is a lifting frame. The lifting frame is located above the adjustment component and is directly used to lift the patient's upper limb. The lifting frame is connected to the adjustment component through an angle adjustment component, which is the key part to achieve precise adjustment of the upper limb abduction angle;

[0011] Among them, an angle adjustment component is provided at the corresponding position of the adjustment component and the lifting frame. The angle adjustment component includes a frame component and a positioning component. An adjustment frame is provided inside the frame component. The positioning component includes a threaded column. A nut is provided at one end of the threaded column away from the limit block. The nut is threadedly connected to the threaded column. A limit block is provided on the surface of the threaded column. A limit hole is opened at the intersection of the adjustment frame and the limit block. When the angle between the positioning component and the frame component changes, the connection between the limit block and different positions of the limit hole is changed. The threaded column penetrates through the adjustment frame. A limit block is provided on the surface of the threaded column. A limit hole is opened at the intersection of the adjustment frame and the limit block. When the angle needs to be adjusted, by rotating the threaded column, the position of the limit block in the limit hole is changed, so as to achieve precise adjustment of the angle of the lifting frame, and then fix the upper lifting position of the upper limb to ensure the upper lifting and abduction angles of the upper limb.

[0012] Preferably, the adjustment component includes a sleeve. A rod is inserted into the sleeve. A circular hole is opened at the corresponding position of the rod and the threaded column. A plug column is provided at the bottom end of the sleeve. The plug column is located at the bottom end of the vertical tube and is of a cylindrical structure. Its diameter matches the plug hole on the connection component. A plug block is fixed on the surface of the plug column and is of a rectangular block structure, which is the same as the shape and size of the plug slot. The plug block and the plug column are integrally formed to ensure its structural strength. By inserting the plug column into the plug hole and making the plug block snap into different positions of the plug slot, the adjustment of different heights and angles of the vertical tube on the connection component can be realized. The size of the plug column is the same as the size of the plug hole. A plug block is provided on the surface of the plug column.

[0013] Preferably, the connecting component is connected to the examination table. The connecting component includes a connecting seat connected to the sleeve. An insertion hole is formed inside the connecting seat, and a plurality of insertion slots are formed around the insertion hole. The plurality of insertion slots are the same size as the insertion blocks. The connecting component is made of a high-strength metal material, such as stainless steel, to ensure that it has sufficient strength and stability to support the entire device. Its shape is designed to be adapted to the edge of the examination table. On the connecting component, an insertion hole is provided corresponding to the position of the insertion column at the bottom end of the vertical pipe, and an insertion slot is provided corresponding to the position of the insertion block. The dimensional accuracy of the insertion hole and the insertion slot is relatively high, and they are closely matched with the insertion column and the insertion block to ensure a firm and stable connection.

[0014] Preferably, the adjusting frame is of a U-shaped structure. A clamping hole is formed at the intersection of the adjusting frame and the threaded column. The size of the clamping hole is the same as the size of one end of the threaded column. The threaded column is a threaded rod, and one end of it extends out of the adjusting frame for easy operation and rotation by the doctor. The limiting block is a convex structure integrally formed with the threaded column, and its shape matches the limiting hole on the adjusting frame. The limiting block is stuck in the limiting hole, so that the relative position between the adjusting frame and the threaded column is fixed, thereby realizing the locking of the angle of the lifting frame.

[0015] Preferably, the adjusting frame is fixedly connected to the lifting frame. The adjusting frame is a metal frame structure with a certain thickness, and a through threaded hole is provided inside it for installing the threaded column. The adjusting frame is fixedly connected to the lifting frame to ensure the stability of the entire structure when adjusting the angle.

[0016] Preferably, the lifting frame is of an arc-shaped structure, and a protective pad is provided on the upper surface of the lifting frame. The lifting frame is made of a plastic material that conforms to ergonomic design, with a soft surface and certain elasticity to improve the comfort of the patient's upper limb placement. The shape of the lifting frame is arc-shaped and can fit the contour of the patient's upper limb.

[0017] Preferably, a fastener is provided at the intersection of the sleeve and the support rod. A plurality of through holes are formed at the corresponding positions of the support rod and the fastener. Both the vertical pipe and the support rod are made of a lightweight and high-strength aluminum alloy material, which reduces the overall weight of the device while ensuring the structural strength. The vertical pipe is a hollow structure. One end of the support rod intersects with the vertical pipe, and the intersection is connected by a fastener. The fastener tightly fixes the vertical pipe and the support rod together to prevent relative rotation between the two.

[0018] The advantages of the embodiments of the present application are:

[0019] 1. Through the synergistic effect of the angle adjustment component and the adjustment component, the abduction angle of the patient's upper limb can be precisely adjusted and fixed, ensuring that the positioning of the patient's upper limb is consistent during each radiotherapy, thereby improving the accuracy of irradiating the lymphatic drainage area above and below the clavicle of the chest wall. Precise irradiation can effectively kill cancer cells, improve the treatment effect, while reducing unnecessary irradiation of surrounding normal tissues and lowering the risk of complications. The angle adjustment component includes a frame component and a positioning component, and the positioning component penetrates the frame component.

[0020] 2. The connection component is tightly connected to the examination bed, and the stable connection method between each component enables the entire device to provide reliable support and fixation for the patient's upper limb during radiotherapy. Even if the patient has slight body movement during the long radiotherapy process, the upper limb can remain in the predetermined position and angle, avoiding irradiation deviation caused by the movement of the upper limb.

[0021] 3. The adjustment component arranged above the connection component further enhances the flexibility and adaptability of the device. The adjustment component includes a vertical tube and a support rod. A fastener is provided at the intersection of the vertical tube and the support rod. By tightening or loosening the fastener, the relative angle between the vertical tube and the support rod can be adjusted. The insertion post at the bottom end of the vertical tube and the insertion block on its surface wall cooperate with the corresponding insertion hole and insertion card slot on the connection component. By changing the position of the insertion block and the insertion card slot, not only can the height of the vertical tube be adjusted, but also it can cooperate with the angle adjustment component to achieve multi-angle fine adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 Schematic diagram of the overall structure of the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0024] Figure 2 Schematic diagram of the overall structure of the upper limb abduction fixation device for breast cancer radiotherapy of the present invention after removing the connection component;

[0025] Figure 3 Schematic diagram of the overall structure of the adjustment component in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0026] Figure 4 Schematic diagram of the overall structure of the angle adjustment component in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0027] Figure 5 Schematic diagram of the overall structure of the adjustment component in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0028] Figure 6 Schematic diagram of the overall structure of the connection component in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0029] Figure 7 It is a schematic diagram of the overall structure of the frame assembly in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention;

[0030] Figure 8 It is a schematic diagram of the overall structure of the positioning assembly in the upper limb abduction fixation device for breast cancer radiotherapy of the present invention.

[0031] Main reference numeral description:

[0032] 1. Lifting frame; 2. Adjusting assembly; 21. Sleeve; 22. Support rod; 23. Fastener; 24. Insertion block; 25. Through hole; 26. Insertion post; 3. Connection assembly; 31. Connection seat; 32. Insertion hole; 33. Insertion card slot; 4. Frame assembly; 41. Adjusting frame; 42. Card hole; 43. Limit hole; 5. Positioning assembly; 51. Threaded post; 52. Nut; 53. Limit block; 6. Protective pad. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. in the following text are for descriptive distinction and have no other special meaning.

[0034] Embodiments of the present application provide an upper limb abduction fixation device for breast cancer radiotherapy to solve the problems in the prior art. Through the coordinated action of the angle adjustment component and the adjustment component, the abduction angle of the patient's upper limb can be precisely adjusted and fixed, ensuring that the position of the patient's upper limb is consistent during each radiotherapy, thereby improving the accuracy of irradiating the lymphatic drainage area above and below the clavicle of the chest wall. Precise irradiation can effectively kill cancer cells, improve the treatment effect, while reducing unnecessary irradiation of surrounding normal tissues and reducing the risk of complications. The angle adjustment component includes a frame component and a positioning component, and the positioning component penetrates the frame component; the connection component is tightly connected to the examination bed, and the stable connection method between each component enables the entire device to provide reliable support and fixation for the patient's upper limb during radiotherapy. Even if the patient has slight body movement during the long-term radiotherapy process, the upper limb can still maintain the predetermined position and angle, avoiding irradiation deviation caused by upper limb movement; the adjustment component provided above the connection component further enhances the flexibility and adaptability of the device. The adjustment component includes a vertical tube and a support rod. A fastener is provided at the intersection of the vertical tube and the support rod. By tightening or loosening the fastener, the relative angle between the vertical tube and the support rod can be adjusted. The insertion column at the bottom end of the vertical tube and the insertion block on its surface wall cooperate with the corresponding insertion hole and insertion card slot on the connection component. By changing the position of the insertion block and the insertion card slot, not only the height of the vertical tube can be adjusted, but also it can cooperate with the angle adjustment component to achieve multi-angle fine adjustment.

[0035] The technical solution in the embodiments of the present application for solving the above problems has the following general idea:

[0036] Embodiment

[0037] This embodiment gives the specific structure of an upper limb abduction fixation device for breast cancer radiotherapy, as Figure 1-8 shown, including a connection component 3. An adjustment component 2 is provided above the connection component 3. A lifting frame 1 is provided at the top end of the adjustment component 2. The lifting frame 1 is located above the adjustment component 2 and is directly used to lift the patient's upper limb. The lifting frame 1 is connected to the adjustment component 2 through an angle adjustment component, which is the key part to achieve precise adjustment of the abduction angle of the upper limb;

[0038] Among them, an angle adjustment component is provided at the corresponding position of the adjustment component 2 and the lifting bracket 1. The angle adjustment component includes a frame component 4 and a positioning component 5. An adjustment bracket 41 is provided inside the frame component 4. The positioning component 5 includes a threaded column 51. A nut 52 is provided at one end of the threaded column 51 away from the limit block 53. The nut 52 is rotatably connected to the threaded column 51. A limit block 53 is provided on the surface of the threaded column 51. A limit hole 43 is opened at the intersection of the adjustment bracket 41 and the limit block 53. When the positioning component 5 and the frame component 4 change the angle, the connection between the limit block 53 and different positions of the limit holes 43 is changed. The threaded column 51 penetrates through the adjustment bracket 41. A limit block 53 is provided on the surface of the threaded column 51. A limit hole 43 is opened at the intersection of the adjustment bracket 41 and the limit block 53. When the angle needs to be adjusted, by rotating the threaded column 51, the position of the limit block 53 in the limit hole 43 is changed, so as to realize the precise adjustment of the angle of the lifting bracket 1, and then fix the upper lifting position of the upper limb, ensuring the upper lifting and abduction angles of the upper limb.

[0039] The adjustment component 2 includes a sleeve 21. A rod 22 is inserted into the sleeve 21. A circular hole is opened at the corresponding position of the rod 22 and the threaded column 51. A plug post 26 is provided at the bottom end of the sleeve 21. The plug post 26 is located at the bottom end of the vertical tube 21 and is of a cylindrical structure. Its diameter matches the plug hole 32 on the connection component 3. A plug block 24 is fixed on the surface of the plug post 26 and is of a rectangular block structure, which is the same as the shape and size of the plug slot 33. The plug block 24 and the plug post 26 are integrally formed to ensure its structural strength. By inserting the plug post 26 into the plug hole 32 and making the plug block 24 snap into different positions of the plug slot 33, the adjustment of different heights and angles of the vertical tube 21 on the connection component 3 can be realized. The size of the plug post 26 is the same as that of the plug hole 32, and a plug block 24 is provided on the surface of the plug post 26.

[0040] The connection component 3 is connected to the examination bed. The connection component 3 includes a connection seat 31 connected to the sleeve 21. A plug hole 32 is opened inside the connection seat 31. A plurality of plug slots 33 are opened around the plug hole 32. The plurality of plug slots 33 are the same size as the plug block 24. The connection component 3 is made of a high-strength metal material, such as stainless steel, to ensure that it has sufficient strength and stability to support the entire device. Its shape is designed to be adapted to the edge of the examination bed. On the connection component 3, a plug hole 32 is provided at the position corresponding to the plug post 26 at the bottom end of the vertical tube 21, and a plug slot 33 is provided at the position corresponding to the plug block 24. The dimensional accuracy of the plug hole 32 and the plug slot 33 is relatively high, and they are closely matched with the plug post 26 and the plug block 24 to ensure firm and stable connection.

[0041] The adjusting frame 41 is of a U-shaped structure. At the intersection of the adjusting frame 41 and the threaded column 51, a clamping hole 42 is provided. The size of the clamping hole 42 is the same as the size of one end of the threaded column 51. The threaded column 51 is a threaded rod, and one end of it extends out of the adjusting frame 41, which is convenient for the doctor to operate and rotate. The limiting block 53 is a convex structure integrally formed with the threaded column 51, and its shape matches the limiting hole 43 on the adjusting frame 41. The limiting block 53 is stuck in the limiting hole 43, so that the relative position between the adjusting frame 41 and the threaded column 51 is fixed, thereby realizing the locking of the angle of the lifting frame 1.

[0042] The adjusting frame 41 is fixedly connected to the lifting frame 1. The adjusting frame 41 is a metal frame structure with a certain thickness, and a through threaded hole is provided inside it for installing the threaded column 51. The adjusting frame 41 is fixedly connected to the lifting frame 1 to ensure the stability of the whole structure when adjusting the angle.

[0043] The lifting frame 1 is of an arc-shaped structure. A protective pad 6 is provided on the upper surface of the lifting frame 1. The lifting frame 1 is made of a plastic material that conforms to the ergonomic design, and the surface is soft and has a certain elasticity to improve the comfort of the patient's upper limb placement. The shape of the lifting frame 1 is arc-shaped and can fit the contour of the patient's upper limb.

[0044] A fastener 23 is provided at the intersection of the sleeve 21 and the support rod 22. A number of through holes 25 are provided at the corresponding position of the support rod 22. Both the vertical tube 21 and the support rod 22 are made of lightweight and high-strength aluminum alloy materials, which reduce the overall weight of the device while ensuring the structural strength. The vertical tube 21 is a hollow structure. One end of the support rod 22 intersects with the vertical tube 21, and the intersection is connected by the fastener 23. The fastener 23 tightly fixes the vertical tube 21 and the support rod 22 together to prevent relative rotation between the two.

[0045] By adopting the above technical solutions:

[0046] In a radiotherapy department, a patient was diagnosed with breast cancer and needed radiotherapy for the supraclavicular and infraclavicular lymphatic drainage areas of the chest wall. The doctor selected this upper limb abduction fixation device for breast cancer radiotherapy.

[0047] Before radiotherapy, the technician first installs the connection component 3 on the examination bed. Then, according to the patient's height and body shape, the technician starts to adjust the adjustment component 2. The technician loosens the fastener 23 at the intersection of the vertical tube 21 and the support rod 22, adjusts the angle between the vertical tube 21 and the support rod 22 to a preliminarily appropriate position, and then tightens the fastener 23. After that, the technician inserts the insertion column 26 at the bottom of the vertical tube 21 into the insertion hole 32 of the connection component 3 and snaps the insertion block 24 into the corresponding insertion slot 33. By changing the position of the insertion block 24 and the insertion slot 33, the height and angle of the vertical tube 21 are further fine-tuned to make the whole adjustment component 2 reach a more ideal starting state.

[0048] Next, the technician begins to adjust the angle adjustment component, and the angle of the support frame 1 changes accordingly. Then, the technician rotates the threaded column 51. As the threaded column 51 rotates, the limit block 53 moves in the limit hole 43 of the adjustment frame 41. While observing the angle, the technician continuously fine-tunes the positional relationship between the threaded column 51 and the adjustment frame 41 by referring to the ideal abduction angle of the upper limb displayed in the radiotherapy simulation software until the support frame 1 reaches the precise abduction angle.

[0049] Finally, the patient lies on the examination bed. The technician guides her to place the upper limb on the support frame 1. The arc-shaped design and soft material of the support frame 1 perfectly fit the patient's upper limb, making her feel more comfortable. During the entire radiotherapy process, the patient's upper limb always maintains the precise abduction angle without obvious displacement. After the radiotherapy, the patient states that she did not feel excessive fatigue in the upper limb during the radiotherapy, and because the device is well-fixed, she is also more relaxed psychologically. The accuracy of this radiotherapy is effectively guaranteed, and the subsequent treatment effect is also relatively ideal.

[0050] Finally, it should be noted that: Obviously, the above embodiments are merely examples for clearly illustrating the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An upper limb abduction fixation device for breast cancer radiotherapy, characterized in that: It comprises a connecting component (3), an adjusting component (2) is arranged above the connecting component (3), and a lifting frame (1) is arranged at the top of the adjusting component (2); Wherein, an angle adjustment component is provided at a position corresponding to the adjustment component (2) and the lifting frame (1), and the angle adjustment component includes a frame component (4) and a positioning component (5). An adjustment frame (41) is provided inside the frame component (4), and the positioning component (5) includes a threaded column (51). A limit block (53) is provided on the surface wall of the threaded column (51). A limit hole (43) is provided at the intersection of the adjustment frame (41) and the limit block (53). When the angle of the positioning component (5) and the frame component (4) is changed, the limit block (53) is changed to connect with the limit hole (43) at a different position.

2. An upper limb abduction fixation device for breast cancer radiotherapy as claimed in claim 1, characterized in that: The adjustment assembly (2) comprises a sleeve (21), a support rod (22) is inserted into the sleeve (21), a plug-in column (26) is provided at the bottom end of the sleeve (21), and a plug-in block (24) is provided on the surface wall of the plug-in column (26).

3. An upper limb abduction fixation device for breast cancer radiotherapy as claimed in claim 2, characterized in that: The connection assembly (3) is connected to the examination bed, and comprises a connection seat (31) connected to the sleeve (21), a plug hole (32) is provided inside the connection seat (31), a plurality of plug slots (33) are provided around the plug hole (32), and the plurality of plug slots (33) are of the same size as the plug block (24).

4. The upper limb abduction fixation device for breast cancer radiotherapy according to claim 1, characterized in that: The adjustment frame (41) is a U-shaped structure. A clamping hole (42) is provided at the intersection of the adjustment frame (41) and the threaded column (51). The size of the clamping hole (42) is the same as the size of one end of the threaded column (51).

5. The upper limb abduction fixation device for breast cancer radiotherapy according to claim 1, characterized in that: A nut (52) is provided at one end of the threaded column (51) away from the limiting block (53), and the nut (52) is screw-connected to the threaded column (51).

6. The upper limb abduction fixation device for breast cancer radiotherapy as claimed in claim 3, characterized in that: The size of the plug-in column (26) is the same as the size of the plug-in hole (32).

7. An upper limb abduction fixation device for breast cancer radiotherapy as claimed in claim 2, characterized in that: Circular holes are provided at positions corresponding to the support rod (22) and the threaded column (51).

8. An upper limb abduction fixation device for breast cancer radiotherapy as claimed in claim 4, characterized in that: The adjustment frame (41) is fixedly connected to the lifting frame (1).

9. The upper limb abduction fixation device for breast cancer radiotherapy according to claim 1, characterized in that: The lifting frame (1) is an arc-shaped structure, and a protective pad (6) is provided on the upper surface of the lifting frame (1).

10. The upper limb abduction fixation device for breast cancer radiotherapy according to claim 2, characterized in that: A fastener (23) is provided at the intersection of the sleeve (21) and the support rod (22), and a plurality of through holes (25) are provided at corresponding positions of the support rod (22) and the fastener (23).

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