Radiation protection device for medical imaging department
By designing protective components on the moving seat and examination bed, and using servo motors and transmission belts to drive the movement of the U-shaped plate and protective shell, precise coverage and fit of the radiation protection device are achieved. This solves the problems of inaccurate protection and space occupation in existing technologies, and improves the convenience of examination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing radiation protection devices are difficult to accurately cover the protected area according to the specific needs of patients, cannot be adjusted in real time, and occupy space after the examination, making it inconvenient for patients to get on and off the examination bed.
The design includes a movable seat, examination bed, and protective components. It uses a servo motor and transmission belt to drive the U-shaped plate and protective shell to move, achieving precise coverage and fit of the protective roll. It is fixed by a ball and adapts to the patient's body movement. After the examination, it can be moved to the bottom of the examination bed.
It achieves precise coverage and fit of the protective roll, improving the accuracy and convenience of examination protection, avoiding inaccurate protection due to patient movement during the examination, and saving space after the examination.
Smart Images
Figure CN121714293A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of radiation protection technology, and in particular to a radiation protection device for medical imaging. Background Technology
[0002] Medical imaging examinations utilize various imaging techniques to visualize and diagnose the internal structures and organs of the human body. X-ray examination: This is one of the most common medical imaging examinations. It utilizes the penetrating power of X-rays; when X-rays pass through different tissues in the human body, the absorption of X-rays varies due to differences in tissue density, thus forming images of different grayscale levels on film or digital imaging equipment. For example, a chest X-ray can observe the morphology and structure of organs such as the lungs and heart, helping to diagnose diseases such as pneumonia, tuberculosis, and cardiomegaly; X-rays of fractures can clearly show the location, type, and displacement of the fracture. CT scan: Computed tomography, which involves continuously rotating an X-ray beam around a specific part of the body, while a detector receives the X-ray signals after they pass through the body. The data is then processed by a computer to reconstruct an image of the body's cross-section. CT scans offer higher resolution, providing clearer visualization of the fine structures and lesions of internal organs. However, medical imaging, especially X-rays and CT scans, exposes patients to a certain dose of ionizing radiation. While the radiation dose is generally within safe limits, excessive radiation can negatively impact fetal development or child growth in sensitive groups such as pregnant women and children. Radiation protection devices effectively block or reduce radiation exposure to areas not being examined, thus lowering the total radiation dose received by the patient.
[0003] Conventional radiation protection devices are mostly of fixed size and shape, making it difficult to accurately cover the specific areas that patients need protection for during examinations. During the examination, patients may move their bodies due to discomfort or examination requirements, and conventional protective devices cannot adjust the protective position and range in real time according to the dynamic changes of the patient's body, resulting in a decrease in the accuracy of protection. After the examination, patients usually need to remove them themselves or with the assistance of medical staff, and the placement may take up space and make it inconvenient for patients to get on and off the examination bed. Therefore, a radiation protection device for medical imaging departments is proposed. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as difficulty in accurately covering the specific areas requiring protection during examinations, the inability of patients to move due to discomfort or examination requirements, the inability of conventional protective devices to adjust the protective position and range in real time according to the dynamic changes of the patient's body, resulting in decreased protection accuracy, and the need for patients to remove the devices themselves or with the assistance of medical staff after the examination, as well as the potential space-consuming placement of these devices and the inconvenience for patients getting on and off the examination bed. Therefore, this invention proposes a radiation protection device for medical imaging departments.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A radiation protection device for medical imaging includes a movable seat and an examination bed. The examination bed is mounted on the upper part of the movable seat and is equipped with a protective assembly. The protective assembly includes a U-shaped plate slidably disposed on the upper part of the examination bed, a second servo motor mounted on the side of the U-shaped plate, a protective roll mounted on the output shaft of the second servo motor, a protective shell slidably disposed on the side of the examination bed, a sliding block slidably disposed on the inner side of the protective shell, a second telescopic rod mounted on the upper part of the sliding block, a round rod mounted on the end of the protective roll, a first drive unit for driving the U-shaped plate to move and a second drive unit for driving the sliding block to move, both disposed on the examination bed. The second telescopic rod and the round rod are fixedly connected. A push rod is rotatably connected to the side of the U-shaped plate. First telescopic rods are symmetrically mounted on the outer side of the push rod. A ball is mounted on the end of each of the two first telescopic rods away from the push rod. During the examination, the protective roll can accurately cover the area of the patient that needs protection and can fit the protective roll tightly against the patient's body. The protective roll is then fixed by the ball to prevent it from bulging on both sides. It can also adaptively adjust with the patient's body movement. After the examination, the protective device can be moved to the lower part of the examination bed without hindering the patient from getting on and off the bed.
[0006] The above technical solution further includes: The first drive unit includes a first rotating rod rotatably connected to the inner side of the examination bed, a second rotating rod rotatably connected to the inner side of the examination bed, a first transmission belt sleeved on the outer sides of the first and second rotating rods, a first servo motor mounted on the side of the examination bed, the output end of the first servo motor being fixedly connected to the first rotating rod, the first rotating rod rotating and supporting the first transmission belt to rotate, a U-shaped plate mounted on the outer side of the first transmission belt, the upper part of the U-shaped plate being fixedly connected to the upper part of the U-shaped plate, the first transmission belt rotating and driving the U-shaped plate to move through the U-shaped plate.
[0007] A guide plate is installed on the outside of the examination bed. The spiral plate is slidably connected to the guide plate. After the first transmission belt rotates, it drives the spiral plate to move along the guide plate.
[0008] The second drive unit includes a third rotating rod rotatably connected to the inner side of a protective shell, a fourth rotating rod rotatably connected to the inner side of the protective shell, a second transmission belt sleeved on the outer sides of the third and fourth rotating rods, a fourth servo motor mounted on the side of the protective shell, the output end of the fourth servo motor being fixedly connected to the third rotating rod, and a sliding block mounted on the outer side of the second transmission belt. After the third rotating rod rotates, it drives the second transmission belt to rotate through the support of the rotation of the fourth rotating rod.
[0009] Both the sliding block and the sliding groove have convex cross-sections. The size of the opening of the sliding groove is adapted to the size of the sliding block. After the second transmission belt rotates, it drives the sliding block to move along the sliding groove.
[0010] A support plate is installed on the side of the examination bed, and a cylinder is installed on the upper part of the support plate. The end of the cylinder away from the support plate is fixedly connected to the protective shell. Activating the cylinder will cause the protective shell to move up and down.
[0011] A third servo motor is installed on the side of the U-shaped plate. A connecting plate is installed at the output end of the third servo motor. The side of the connecting plate away from the third servo motor is fixedly connected to the push rod. After the push rod rotates, it drives the ball to squeeze and fix the two sides of the protective roll.
[0012] The size of the opening of the U-shaped plate is adapted to the thickness of the guide plate. The U-shaped plate drives the U-shaped plate to move along the guide plate in a U-shaped trajectory, ensuring the stability of the opening of the U-shaped plate when it moves.
[0013] The transmission ratio of the third rotating rod to the second transmission belt and the first rotating rod to the first transmission belt are the same, ensuring consistent speed.
[0014] The present invention has the following beneficial effects: In this invention, by setting up protective components, the protective roll can be accurately covered to cover the area of the patient that needs protection during the examination, and the protective roll can fit tightly to the patient's body. Then, the protective roll is fixed by a ball to prevent it from bulging on both sides. At the same time, it can adaptively adjust with the patient's body movement to always maintain a good protective state. After the examination, the protective device can be moved to the lower part of the examination bed without hindering the patient from getting on and off the bed. Overall, the accuracy, fit and convenience of the examination protection are improved. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the first sectional view of the overall side structure of a radiation protection device for medical imaging department proposed in this invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall side second sectional view structure in this invention; Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point B; Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point C; Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point D.
[0016] In the diagram: 1. Movable seat; 2. Inspection bed; 3. First rotating rod; 4. Second rotating rod; 5. First servo motor; 6. First transmission belt; 7. Guide plate; 8. U-shaped plate; 9. U-shaped plate; 10. Second servo motor; 11. Protective roll; 12. Third servo motor; 13. Connecting plate; 14. Push rod; 15. Telescopic rod; 16. Ball; 17. Round rod; 18. Third rotating rod; 19. Fourth rotating rod; 20. Second transmission belt; 21. Fourth servo motor; 22. Protective shell; 23. Sliding groove; 24. Sliding block; 25. Second telescopic rod; 26. Support plate; 27. Cylinder. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Example 1 like Figure 1 - Figure 7As shown, the present invention proposes a radiation protection device for medical imaging, comprising a movable base 1 and an examination bed 2. The examination bed 2 is mounted on the upper part of the movable base 1. A protective assembly is provided on the examination bed 2. The protective assembly includes a U-shaped plate 9 slidably disposed on the upper part of the examination bed 2, a second servo motor 10 mounted on the side of the U-shaped plate 9, a protective roll 11 mounted on the output shaft of the second servo motor 10, a protective shell 22 slidably disposed on the side of the examination bed 2, a sliding block 24 slidably disposed inside the protective shell 22, a second telescopic rod 25 mounted on the upper part of the sliding block 24, a round rod 17 mounted on the end of the protective roll 11, and a second telescopic rod 17 mounted on the examination bed 2 to drive the U-shaped plate 9 to move. A second drive unit that moves a drive unit and a drive sliding block 24 is fixedly connected to the second telescopic rod 25 and the round rod 17. A push rod 14 is rotatably connected to the side of the U-shaped plate 9. A first telescopic rod 15 is symmetrically installed on the outer side of the push rod 14. A ball 16 is installed on the end of each of the two first telescopic rods 15 away from the push rod 14. During the examination, the protective roll can be accurately covered to cover the area of the patient that needs protection, and the protective roll can fit tightly to the patient's body. Then, the protective roll is fixed by the ball to prevent it from bulging on both sides. At the same time, it can adaptively adjust with the movement of the patient's body. After the examination, the protective device can be moved to the lower part of the examination bed without hindering the patient from getting on and off the bed.
[0019] The first drive unit includes a first rotating rod 3 rotatably connected to the inner side of the examination bed 2, a second rotating rod 4 rotatably connected to the inner side of the examination bed 2, a first transmission belt 6 sleeved on the outer side of the first rotating rod 3 and the second rotating rod 4, a first servo motor 5 mounted on the side of the examination bed 2, the output end of the first servo motor 5 being fixedly connected to the first rotating rod 3, the first rotating rod 3 rotating and driving the first transmission belt 6 to rotate through the support of the second rotating rod 4, a U-shaped plate 8 mounted on the outer side of the first transmission belt 6, the upper part of the U-shaped plate 8 being fixedly connected to the U-shaped plate 9, the first transmission belt 6 rotating and driving the U-shaped plate 9 to move through the U-shaped plate 8.
[0020] A guide plate 7 is installed on the outside of the examination bed 2. The spiral plate 8 is slidably connected to the guide plate 7. After the first transmission belt 6 rotates, it drives the spiral plate 8 to move along the guide plate 7.
[0021] The second drive unit includes a third rotating rod 18 rotatably connected to the inner side of a protective shell 22, a fourth rotating rod 19 rotatably connected to the inner side of the protective shell 22, a second transmission belt 20 being sleeved on the outer sides of the third rotating rod 18 and the fourth rotating rod 19, a fourth servo motor 21 being mounted on the side of the protective shell 22, the output end of the fourth servo motor 21 being fixedly connected to the third rotating rod 18, and a sliding block 24 being mounted on the outer side of the second transmission belt 20. After the third rotating rod 18 rotates, it drives the second transmission belt 20 to rotate through the support of the rotation of the fourth rotating rod 19.
[0022] Both the sliding block 24 and the sliding groove 23 have convex cross sections. The size of the opening of the sliding groove 23 is adapted to the size of the sliding block 24. After the second transmission belt 20 rotates, it drives the sliding block 24 to move along the sliding groove 23.
[0023] A support plate 26 is installed on the side of the examination bed 2, and a cylinder 27 is installed on the upper part of the support plate 26. The end of the cylinder 27 away from the support plate 26 is fixedly connected to the protective shell 22. When the cylinder 27 is activated, it drives the protective shell 22 to move up and down.
[0024] A third servo motor 12 is installed on the side of the U-shaped plate 9. A connecting plate 13 is installed at the output end of the third servo motor 12. The side of the connecting plate 13 away from the third servo motor 12 is fixedly connected to the push rod 14. After the push rod 14 rotates, it drives the ball 16 to squeeze the two sides of the protective roll 11 for fixation.
[0025] The size of the opening of the U-shaped plate 8 is adapted to the thickness of the guide plate 7. The U-shaped plate 8 drives the U-shaped plate 9 to move along the guide plate 7 in a U-shaped trajectory, ensuring the stability of the opening movement of the U-shaped plate 8.
[0026] The transmission ratio of the third rotating rod 18 to the second transmission belt 20 and the first rotating rod 3 to the first transmission belt 6 are the same, ensuring consistent speed.
[0027] In this embodiment, when the patient undergoes a medical imaging examination, they first lie on the examination bed 2. Simultaneously, the fourth servo motor 21 and the first servo motor 5 are activated. After the first servo motor 5 is activated, it drives the first rotating rod 3 to rotate. The rotation of the first rotating rod 3, supported by the rotation of the second rotating rod 4, drives the first transmission belt 6 to rotate. The rotation of the first transmission belt 6 then drives the U-shaped plate 8 to move along the guide plate 7, simultaneously moving the U-shaped plate 9 until it moves from the bottom of the examination bed 2 to the top, simultaneously moving the protective roll 11. At the same time, the fourth servo motor 21 is activated. After the fourth servo motor 21 is activated, it drives the third rotating rod 18 to rotate. The rotation of the third rotating rod 18, supported by the rotation of the fourth rotating rod 19, drives the second transmission belt 20 to rotate. The rotation of the second transmission belt 20 then drives the sliding block 24 and the second telescopic rod 25 to move along the sliding groove 23, simultaneously following the round rod 17 and the protective roll 11. Then, the second servo motor 10 and the fourth servo motor 21 can be activated simultaneously. After the second servo motor 10 is activated, it releases the protective roll 11 through its output shaft, and simultaneously, the fourth servo motor 21 is activated. Then, the second transmission belt 20 is driven to rotate, which in turn drives the sliding block 24 to move along the sliding groove 23. At the same time, the second telescopic rod 25 drives the round rod 17 to move until the released round rod 17 covers the patient's body, until it covers the area of the patient that needs protection, making the protection position more precise. At the same time, the cylinder 27 can be activated to drive the protective shell 22 to move down. Simultaneously, the cylinder 27 and the round rod 17 drive the protective roll 11 to move down, keeping the protective roll 11 in close contact with the patient's body. Then, the third servo motor 12 can be activated. After the third servo motor 12 is activated, it drives the connecting plate 13 to rotate, connecting... After the connecting plate 13 rotates, it drives the push rod 14 to rotate. After the push rod 14 rotates, it drives the ball 16 to squeeze the two sides of the protective roll 11 for fixation, while preventing the two sides of the protective roll 11 from bulging. The patient's body movement can be adjusted by the elasticity of the second telescopic rod 25 and the first telescopic rod 15 so that the protective roll 11 can fit the patient's body. After the examination is completed, the first servo motor 5 can be started to drive the first transmission belt 6 to rotate, and then drive the U-shaped plate 9 and the protective roll 11 to move to the lower part of the examination bed 2, without affecting the patient's up and down movement on the examination bed 2.
[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A radiation protection device for medical imaging, comprising a movable seat (1) and an examination bed (2), characterized in that, The examination bed (2) is installed on the upper part of the movable seat (1). The examination bed (2) is provided with a protective assembly, which includes a U-shaped plate (9) slidably disposed on the upper part of the examination bed (2), a second servo motor (10) mounted on the side of the U-shaped plate (9), a protective roll (11) mounted on the output shaft of the second servo motor (10), a protective shell (22) slidably disposed on the side of the examination bed (2), a sliding block (24) slidably disposed on the inner side of the protective shell (22), and a second telescopic rod (25) mounted on the upper part of the sliding block (24). The protective roll (11) is equipped with a round rod (17) at the end, a first drive unit for moving the U-shaped plate (9) and a second drive unit for moving the sliding block (24) are provided on the inspection bed (2), the second telescopic rod (25) and the round rod (17) are fixedly connected, the side of the U-shaped plate (9) is rotatably connected to a push rod (14), the outside of the push rod (14) is symmetrically equipped with a first telescopic rod (15), and a ball (16) is installed at the end of each of the two first telescopic rods (15) away from the push rod (14).
2. The radiation protection device for medical imaging according to claim 1, characterized in that, The first drive unit includes a first rotating rod (3) rotatably connected to the inner side of the inspection bed (2), a second rotating rod (4) rotatably connected to the inner side of the inspection bed (2), a first transmission belt (6) being sleeved on the outer side of the first rotating rod (3) and the second rotating rod (4), a first servo motor (5) being installed on the side of the inspection bed (2), the output end of the first servo motor (5) being fixedly connected to the first rotating rod (3), and a U-shaped plate (8) being installed on the outer side of the first transmission belt (6), the upper part of the U-shaped plate (8) being fixedly connected to the U-shaped plate (9).
3. A radiation protection device for medical imaging according to claim 2, characterized in that, A guide plate (7) is installed on the outside of the examination bed (2), and the spiral plate (8) is slidably connected to the guide plate (7).
4. A radiation protection device for medical imaging according to claim 1, characterized in that, The second drive unit includes a third rotating rod (18) rotatably connected to the inner side of a protective shell (22), a fourth rotating rod (19) rotatably connected to the inner side of the protective shell (22), a second transmission belt (20) being sleeved on the outer side of the third rotating rod (18) and the fourth rotating rod (19), a fourth servo motor (21) being installed on the side of the protective shell (22), the output end of the fourth servo motor (21) being fixedly connected to the third rotating rod (18), and a sliding block (24) being installed on the outer side of the second transmission belt (20).
5. A radiation protection device for medical imaging according to claim 4, characterized in that, Both the sliding block (24) and the sliding groove (23) have convex cross sections, and the size of the opening of the sliding groove (23) is adapted to the size of the sliding block (24).
6. A radiation protection device for medical imaging according to claim 1, characterized in that, A support plate (26) is installed on the side of the examination bed (2), and a cylinder (27) is installed on the upper part of the support plate (26). The end of the cylinder (27) away from the support plate (26) is fixedly connected to the protective shell (22).
7. A radiation protection device for medical imaging according to claim 1, characterized in that, A third servo motor (12) is installed on the side of the U-shaped plate (9), and a connecting plate (13) is installed at the output end of the third servo motor (12). The side of the connecting plate (13) away from the third servo motor (12) is fixedly connected to the push rod (14).
8. A radiation protection device for medical imaging according to claim 3, characterized in that, The size of the opening of the U-shaped plate (8) is adapted to the thickness of the guide plate (7), and the U-shaped plate (8) drives the U-shaped plate (9) to move along the guide plate (7) in a U-shaped trajectory.
9. A radiation protection device for medical imaging according to claim 1, characterized in that, The transmission ratio of the third rotating rod (18) to the second transmission belt (20) and the first rotating rod (3) to the first transmission belt (6) are the same.