Protective device for radiotherapy

By adjusting the support frame and motor-driven protective plate of the radiotherapy protective device, the problem of radiation damage to healthy tissues during radiotherapy is solved, achieving more efficient tumor treatment and immune system protection.

CN223615284UActive Publication Date: 2025-12-02THE 901ST HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202422840531.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-12-02
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing radiotherapy techniques struggle to precisely target tumor sites while minimizing radiation damage to the patient's entire body and non-treatment areas, leading to unnecessary radiation side effects and damage to the immune system.

Method used

A radiation protection device for radiotherapy is employed, which utilizes a combination of a support frame, lead screw, protective plate, and motor to achieve dynamic adjustment and automated control of the protective plate, adapting to protection requirements of different areas and heights, allowing radiation to pass through while providing protection, and reducing radiation to healthy tissues.

Benefits of technology

It effectively reduces side effects such as skin erythema and mucosal inflammation, maintains the patient's immune function, and improves the accuracy and efficiency of treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oncology department radiation, in particular to a protection device for radiotherapy, which comprises two bottom plates and a plurality of groups of radiation instruments, the plurality of groups of radiation instruments are all arranged above the bottom plates, two support frames are fixedly connected between the tops of the two bottom plates, a first screw rod is rotatably connected between the two support frames, and a second screw rod is rotatably connected between the two support frames. The outer portion of the first lead screw is in threaded connection with a connecting block, the bottom of the connecting block is fixedly connected with a first protection plate, the bottom of the inner wall of one supporting frame is fixedly connected with a second protection plate, and rotary hinges are fixedly connected to the two sides between the first protection plate and the second protection plate. The beneficial effects of the utility model lie in that radiation therapy can cause skin erythema, ulcer and mucosa inflammation, these side effects not only affect the living quality of a patient, but also increase the disruption rate of the therapy, and through effective protection, the radiation dose of these parts can be reduced, the side effects can be reduced or avoided, and the treatment effect can be improved. Compared with a traditional device, the operation quality and the use efficiency are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of radiotherapy technology in oncology, and in particular to a protective device for radiotherapy. Background Technology

[0002] Radiotherapy is an important method in cancer treatment. It uses high-energy rays or particle beams to destroy the DNA of tumor cells, inhibiting their growth and division, thereby achieving the therapeutic goal.

[0003] With the continuous advancement of radiotherapy technology, the treatment effect has been significantly improved, but at the same time, the challenge of how to reduce radiation damage to the patient's whole body, especially non-treatment areas, while accurately irradiating the tumor site is also faced.

[0004] Currently, the most common method of tumor radiotherapy is to use high-energy X-rays to irradiate tumors. Although X-rays can penetrate human tissue, their penetrability can also cause the rays to continue to irradiate healthy tissues after passing through the tumor.

[0005] Current radiotherapy techniques cannot completely avoid radiation to surrounding normal tissues and organs when irradiating tumors, especially for deep or large tumors. High-energy rays can continue to irradiate healthy tissues after penetrating the tumor, leading to unnecessary radiation damage.

[0006] Whole-body radiation can cause a range of side effects, such as skin erythema, mucosal inflammation, fatigue, nausea, and vomiting. Long-term high-dose radiation may also have adverse effects on the patient's immune system and endocrine system, increasing the complexity and risk of treatment.

[0007] To address the above issues, we have developed a protective device for radiation therapy. Utility Model Content

[0008] This utility model discloses a protective device for radiotherapy, which aims to solve the technical problems in the background art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A protective device for radiotherapy includes two base plates and multiple sets of radiographic instruments. The radiographic instruments are all mounted above the base plates. Two support frames are fixedly connected between the tops of the two base plates. A first lead screw is rotatably connected between the two support frames. A connecting block is threaded onto the outer side of the first lead screw. A first protective plate is fixedly connected to the bottom of the connecting block. A second protective plate is fixedly connected to the bottom of the inner wall of one of the support frames. Rotary hinges are fixedly connected to both sides between the first and second protective plates. A radiation-transmitting plate is fixedly connected between the first and second protective plates and between the two rotary hinges. A first motor is fixedly connected to the outer side of one of the support frames. The output shaft of the first motor passes through the support frame and is fixedly connected to one end of the first lead screw.

[0011] The support frame provides structural support and installation space. The combination of the first lead screw and the connecting block ensures the left and right movement of the first protective plate, realizing the dynamic adjustment of the first protective plate. The rotary hinge allows the first and second protective plates to rotate freely to adapt to the protection needs of different areas. The radiation-transparent plate allows radiation to pass through while providing a certain degree of protection. The first motor drives the movement of the first protective plate through the first lead screw, realizing automated control and improving the flexibility and efficiency of protection.

[0012] In a preferred embodiment, a second lead screw is rotatably connected between the two support frames and above the first lead screw. A support plate is threaded onto the outside of the second lead screw. All the radiation instruments are connected to the bottom of the support plate. A second motor is fixedly connected to the outside of one of the support frames. The output shaft of the second motor passes through the support frame and is fixedly connected to one end of the second lead screw.

[0013] The combination of a second lead screw and a support plate ensures the vertical movement of the radiology instrument, adapting to treatment needs at different heights. The second motor drives the support plate to move via the second lead screw, thereby adjusting the position of the radiology instrument and improving the accuracy and flexibility of treatment.

[0014] In a preferred embodiment, upper limit rods are fixedly connected between the two support frames and on both sides of the first lead screw. Each upper limit rod is slidably connected to a first upper limit block, and the bottom of each first upper limit block is fixedly connected to the top of the first protective plate.

[0015] By setting an upper limit rod and a first upper limit block, the straightness and stability of the first protective plate during its up-and-down movement are ensured, preventing the first protective plate from shifting and improving the reliability of the protection.

[0016] In a preferred embodiment, a second upper limit block is fixedly connected to both ends of the bottom of the support plate, and the second upper limit block is slidably connected to the corresponding upper limit rod.

[0017] By setting a sliding connection between the second upper limit block and the upper limit rod, the linearity and stability of the support plate during its up-and-down movement are ensured, preventing the support plate from shifting and improving the motion accuracy and reliability of the radiographic instrument.

[0018] In a preferred embodiment, each of the support frames is fixedly connected to a fixing plate, and a lower limit rod is fixedly connected between two of the fixing plates. A lower limit block is slidably connected to the outside of the lower limit rod, and the top of the lower limit block is fixedly connected to the bottom of the first protective plate.

[0019] By setting a fixed plate and a lower limit rod to provide lower limit support for the first protective plate, the lower limit block ensures the straightness and stability of the first protective plate during the up and down movement, prevents the first protective plate from moving too far downward, and improves the safety and reliability of the protection.

[0020] In a preferred embodiment, a control panel is fixedly connected to one side of one of the support frames, and the radiation instrument, the first motor, and the second motor are all electrically connected to the control panel.

[0021] By setting up a control panel to centrally control the operation of the radiation instrument, the first motor, and the second motor, the operation process is simplified, the equipment is fully automated, and the convenience of operation and the accuracy of treatment are improved.

[0022] In a preferred embodiment, the bottom of each base plate is fixedly connected to two self-locking casters.

[0023] The self-locking casters provide ease of movement, allowing the equipment to be easily moved to different locations. At the same time, the self-locking function ensures the stability and safety of the equipment during use, preventing accidental movement.

[0024] The protective device for radiotherapy provided by this utility model has the following advantages:

[0025] In this invention, a rotating hinge allows the first and second protective plates to rotate freely, adapting to different area protection needs. The radiation-permeable plate allows radiation to pass through while providing a certain degree of protection. A first motor drives the movement of the first protective plate via a first lead screw, achieving automated control. On the one hand, radiotherapy can cause skin erythema, ulcers, and mucosal inflammation. These side effects not only affect the patient's quality of life but may also increase the rate of treatment interruption. Effective protection can reduce the radiation dose to these areas, mitigating or avoiding side effects. On the other hand, whole-body radiation can adversely affect the patient's immune system, leading to decreased immunity and increasing the risk of infection. Protective measures can reduce radiation damage to the immune system and maintain the patient's immune function, greatly improving operational quality and efficiency compared to traditional devices. Attached Figure Description

[0026] Figure 1 This is a first-view perspective three-dimensional schematic diagram of a protective device for radiotherapy proposed in this utility model.

[0027] Figure 2 This is a second-view perspective three-dimensional schematic diagram of a protective device for radiotherapy proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the first lead screw structure of a protective device for radiotherapy proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the second lead screw structure of a protective device for radiotherapy proposed in this utility model.

[0030] Figure 5 This is a schematic diagram of the lower limit rod structure of a protective device for radiotherapy proposed in this utility model.

[0031] In the attached diagram: 1. Base plate; 2. Support frame; 3. First lead screw; 4. Connecting block; 5. First protective plate; 6. Second protective plate; 7. Rotary hinge; 8. Radiation plate; 9. Radiation instrument; 10. First motor; 11. Second lead screw; 12. Support plate; 13. Second motor; 14. Upper limit rod; 15. First upper limit block; 16. Second upper limit block; 17. Fixing plate; 18. Lower limit rod; 19. Lower limit block; 20. Control panel; 21. Self-locking caster wheel. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] The protective device for radiotherapy disclosed in this utility model is mainly used in oncology radiotherapy scenarios.

[0034] Reference Figures 1-5A protective device for radiotherapy includes two base plates 1 and multiple sets of radiotherapy instruments 9. The multiple sets of radiotherapy instruments 9 are all set above the base plates 1. Two support frames 2 are fixedly connected between the tops of the two base plates 1. A first lead screw 3 is rotatably connected between the two support frames 2. A connecting block 4 is threaded to the outside of the first lead screw 3. A first protective plate 5 is fixedly connected to the bottom of the connecting block 4. A second protective plate 6 is fixedly connected to the bottom of the inner wall of one of the support frames 2. Rotary hinges 7 are fixedly connected to both sides between the first protective plate 5 and the second protective plate 6. A radiation-transmitting plate 8 is fixedly connected between the first protective plate 5 and the second protective plate 6 and between the two rotary hinges 7. A first motor 10 is fixedly connected to the outside of one of the support frames 2. The output shaft of the first motor 10 passes through the support frame 2 and is fixedly connected to one end of the first lead screw 3.

[0035] In this embodiment: the support frame 2 provides structural support and installation space; the combination of the first lead screw 3 and the connecting block 4 ensures the left and right movement of the first protective plate 5, realizing the dynamic adjustment of the first protective plate 5; the rotary hinge 7 allows the first protective plate 5 and the second protective plate 6 to rotate freely to adapt to the protection needs of different areas; the radiation-transparent plate 8 allows radiation to pass through while providing a certain degree of protection; the first motor 10 drives the movement of the first protective plate 5 through the first lead screw 3, realizing automated control and improving the flexibility and efficiency of protection.

[0036] In a preferred embodiment, a second lead screw 11 is rotatably connected between the two support frames 2 and above the first lead screw 3. The second lead screw 11 is externally threaded to a support plate 12. The radiation instruments 9 are all connected to the bottom of the support plate 12. A second motor 13 is fixedly connected to the outside of one of the support frames 2. The output shaft of the second motor 13 passes through the support frame 2 and is fixedly connected to one end of the second lead screw 11.

[0037] In this embodiment, the combination of the second lead screw 11 and the support plate 12 ensures the vertical movement of the radiology instrument 9 to adapt to treatment needs at different heights. The second motor 13 drives the support plate 12 to move through the second lead screw 11, thereby adjusting the position of the radiology instrument 9 and improving the accuracy and flexibility of treatment.

[0038] In a preferred embodiment, upper limit rods 14 are fixedly connected between the two support frames 2 and on both sides of the first lead screw 3. The upper limit rods 14 are slidably connected to the outside of the upper limit blocks 15. The bottom of the first upper limit blocks 15 is fixedly connected to the top of the first protective plate 5.

[0039] In this embodiment, the upper limit rod 14 and the first upper limit block 15 ensure the straightness and stability of the first protective plate 5 during its up-and-down movement, prevent the first protective plate 5 from shifting, and improve the reliability of the protection.

[0040] In a preferred embodiment, a second upper limit block 16 is fixedly connected to both ends of the bottom of the support plate 12, and the second upper limit block 16 is slidably connected to the corresponding upper limit rod 14.

[0041] In this embodiment, the sliding connection between the second upper limit block 16 and the upper limit rod 14 ensures the straightness and stability of the support plate 12 during its up-and-down movement, prevents the support plate 12 from shifting, and improves the motion accuracy and reliability of the radiographic instrument 9.

[0042] In a preferred embodiment, each of the support frame 2 is fixedly connected to a fixing plate 17, and a lower limit rod 18 is fixedly connected between the two fixing plates 17. A lower limit block 19 is slidably connected to the outside of the lower limit rod 18, and the top of the lower limit block 19 is fixedly connected to the bottom of the first protective plate 5.

[0043] In this embodiment, the fixed plate 17 and the lower limit rod 18 provide lower limit support for the first protective plate 5, and the lower limit block 19 ensures the straightness and stability of the first protective plate 5 during the up and down movement, prevents the first protective plate 5 from moving too far down, and improves the safety and reliability of the protection.

[0044] In a preferred embodiment, a control panel 20 is fixedly connected to one side of one of the support frames 2, and the radiation instrument 9, the first motor 10 and the second motor 13 are all electrically connected to the control panel 20.

[0045] In this embodiment, the control panel 20 centrally controls the operation of the radiology instrument 9, the first motor 10, and the second motor 13, simplifying the operation process, realizing fully automated control of the equipment, and improving the convenience of operation and the accuracy of treatment.

[0046] In a preferred embodiment, two self-locking casters 21 are fixedly connected to the bottom of the base plate 1.

[0047] In this embodiment, the self-locking caster wheel 21 provides the device with convenient mobility, allowing it to be easily moved to different locations. At the same time, the self-locking function ensures the stability and safety of the device during use, preventing accidental movement.

[0048] Working principle: In use, the operator moves the entire device to the designated position using the self-locking casters 21 and fixes it in that position. The output shaft of the first motor 10 drives the first lead screw 3 to rotate. The rotation of the first lead screw 3 causes the connecting block 4 to move along the direction of the lead screw. The movement of the connecting block 4 causes the first protective plate 5 to move laterally along the upper limit rod 14 and the lower limit rod 18, ensuring the linear movement of the first protective plate 5. The rotary hinge 7 between the first protective plate 5 and the second protective plate 6 allows the first protective plate 5 to rotate flexibly during vertical movement, ensuring that the protective plate always maintains a suitable protective angle with the treatment area. The output shaft of the second motor 13 drives... The rotation of the second lead screw 11 causes the support plate 12 to move up and down along the upper limit rod 14. The movement of the support plate 12 drives the radiation instrument 9 to move up and down, ensuring that the radiation instrument 9 can be accurately positioned in the treatment area. The first protective plate 5 can move left and right in the lateral direction and can be adjusted in the horizontal direction by means of the rotary hinge 7, realizing multi-degree-of-freedom protection. Whole-body radiation can have an adverse effect on the patient's immune system, leading to decreased immunity and increasing the risk of infection. Protective measures can reduce radiation damage to the immune system and maintain the patient's immune function, greatly improving the quality of operation and efficiency compared with traditional devices.

[0049] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A protective device for radiotherapy, comprising two base plates (1) and multiple sets of radiographic instruments (9), characterized in that, Multiple sets of the aforementioned radiation instruments (9) are all set above the base plate (1). Two support frames (2) are fixedly connected between the tops of the two base plates (1). A first lead screw (3) is rotatably connected between the two support frames (2). A connecting block (4) is threaded onto the outside of the first lead screw (3). A first protective plate (5) is fixedly connected to the bottom of the connecting block (4). A second protective plate (6) is fixedly connected to the bottom of the inner wall of one of the support frames (2). Rotary hinges (7) are fixedly connected on both sides between the first protective plate (5) and the second protective plate (6). A radiation-transmitting plate (8) is fixedly connected between the first protective plate (5) and the second protective plate (6) and between the two rotary hinges (7). A first motor (10) is fixedly connected to the outside of one of the support frames (2). The output shaft of the first motor (10) passes through the support frame (2) and is fixedly connected to one end of the first lead screw (3).

2. The protective device for radiotherapy according to claim 1, characterized in that, A second lead screw (11) is rotatably connected between the two support frames (2) and above the first lead screw (3). The second lead screw (11) is threadedly connected to a support plate (12). The radiation instruments (9) are all connected to the bottom of the support plate (12). A second motor (13) is fixedly connected to the outside of one of the support frames (2). The output shaft of the second motor (13) passes through the support frame (2) and is fixedly connected to one end of the second lead screw (11).

3. The protective device for radiotherapy according to claim 2, characterized in that, Upper limit rods (14) are fixedly connected between the two support frames (2) and on both sides of the first lead screw (3). The upper limit rods (14) are slidably connected to the outside of the upper limit blocks (15). The bottom of the first upper limit blocks (15) is fixedly connected to the top of the first protective plate (5).

4. A protective device for radiotherapy according to claim 3, characterized in that, The support plate (12) has two fixed ends at the bottom, each of which is connected to a second upper limit block (16), and the second upper limit block (16) is slidably connected to the corresponding upper limit rod (14).

5. A protective device for radiotherapy according to claim 1, characterized in that, The support frame (2) is fixedly connected to a fixing plate (17) inside. A lower limit rod (18) is fixedly connected between the two fixing plates (17). A lower limit block (19) is slidably connected to the outside of the lower limit rod (18). The top of the lower limit block (19) is fixedly connected to the bottom of the first protective plate (5).

6. A protective device for radiotherapy according to claim 2, characterized in that, One of the support frames (2) is fixedly connected to a control panel (20) on one side, and the radiation instrument (9), the first motor (10) and the second motor (13) are all electrically connected to the control panel (20).

7. A protective device for radiotherapy according to claim 6, characterized in that, Two self-locking casters (21) are fixedly connected to the bottom of each base plate (1).