Radiotherapy auxiliary positioning device
By designing a radiotherapy-assisted positioning device, which utilizes a head fixation frame, a neck support frame, an upper limb fixation component, a trunk fixation component, and a lower limb adjustment component, the problem of unstable body position during radiotherapy was solved, thus achieving accuracy and stability in radiotherapy.
Patent Information
- Application Number
- CN202422968446.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-02
AI Technical Summary
During radiotherapy, it is difficult to guarantee the stability and accuracy of the patient's position. Traditional fixation methods have poor stability, resulting in inaccurate radiotherapy positioning.
A radiotherapy-assisted positioning device was designed, including a head fixation frame, a neck support frame, an upper limb fixation component, a trunk fixation component, and a lower limb adjustment component. The head and neck are fixed by an airbag, the trunk is fixed by a bidirectional screw, the upper limbs are fixed by a limiting rod and a limiting plate, and the lower limbs are fixed by an adjustment plate, ensuring the stability and accuracy of the patient during radiotherapy.
It improves the accuracy and stability of radiotherapy, reduces the risks of radiotherapy caused by body position changes, and ensures the precision of radiotherapy location.
Smart Images
Figure CN223731959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary device technology, specifically a radiotherapy auxiliary positioning device. Background Technology
[0002] Radiotherapy, also known as radiation therapy, is a local treatment method that uses radiation to treat tumors. The mechanism of radiotherapy is that radiation enters the body and interacts with tumor cells, producing stimulating electrons, which cause the DNA molecules of tumor cells to break down, thereby achieving the purpose of treating tumors.
[0003] During radiotherapy, ensuring the stability and accuracy of the patient's position is crucial. In traditional radiotherapy, medical staff usually position the patient and then use triangular pads or similar objects to limit the patient's position. This is quite troublesome each time, and because triangular pads or similar objects are not very stable, their position is prone to change during radiotherapy, leading to inaccurate radiotherapy placement. Utility Model Content
[0004] The purpose of this invention is to provide a radiotherapy-assisted positioning device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A radiotherapy-assisted positioning device includes a radiotherapy bed. One end of the top of the radiotherapy bed is equipped with a head fixation frame and a neck support for fixing the patient's head and neck. The other end of the top of the radiotherapy bed has two adjustment slots, each of which is hinged with a lower limb adjustment component for assisting the positioning of the patient's legs. The top of the radiotherapy bed is also equipped with two sets of upper limb fixation components for fixing the patient's upper limbs and a trunk fixation component for fixing the trunk.
[0007] Preferably, the upper limb fixation assembly includes an upper limb fixation support, one end of the bottom of the upper limb fixation support is hinged to a rotating shaft, the other end of the rotating shaft is fixed to the top of the radiotherapy bed, the other end of the bottom of the upper limb fixation support is fixedly connected to an auxiliary shaft, the bottom of the auxiliary shaft is in contact with the top of the radiotherapy bed, and a limiting component is also installed on the side wall of the upper limb fixation support.
[0008] Preferably, the limiting component includes a connecting plate, which is fixed to the side wall of the upper limb fixation support. A limiting rod is slidably provided on the connecting plate. Multiple limiting holes are symmetrically opened on the top of the radiotherapy bed. The limiting rod is slidably inserted into an adjacent limiting hole. A pull plate is installed on the top of the limiting rod. Two sets of return springs are installed between the pull plate and the connecting plate.
[0009] Preferably, the trunk fixation assembly includes a bidirectional screw, which is rotatably connected to the inside of the radiotherapy bed. One end of the bidirectional screw passes through the side wall of the radiotherapy bed and extends to the outside of the radiotherapy bed. A knob is fixedly connected to the extended end of the bidirectional screw.
[0010] The bidirectional screw is threaded with two connecting blocks, which are located at both ends of the bidirectional screw. The top of the radiotherapy bed has two sliding grooves, and the two connecting blocks are slidably disposed in adjacent sliding grooves. Limiting plates are installed on the top of the two connecting blocks, and elastic pads are installed on the facing surfaces of the two limiting plates.
[0011] Preferably, the lower limb adjustment assembly includes an auxiliary plate and an adjustment plate, both of which are disposed in adjacent adjustment slots. The auxiliary plate has a first connecting shaft and a second connecting shaft at both ends. The auxiliary plate is rotatably connected to the adjustment slot via the first connecting shaft, and the auxiliary plate is hinged to the adjustment plate via the second connecting shaft. Two adjustment holes are provided at the top end of the adjustment plate away from the auxiliary plate. Baffles are installed on both sides of the auxiliary plate and the adjustment plate.
[0012] The inner wall of the adjustment groove is equipped with multiple limiting strips for fixing the adjustment plate.
[0013] Preferably, airbags are also provided in the inner walls on both sides of the head fixing frame and the neck support frame, and the air inlet ends of the multiple airbags are connected to an external air source.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model has high adjustability and flexibility, and can adapt to the needs of different patients. When using the upper limb fixation support, medical staff can adjust its position and angle according to the patient's specific situation to ensure that the upper limb is properly fixed, thereby further improving the accuracy of radiotherapy. At the same time, the bidirectional screw and limiting plate design in the trunk fixation component can flexibly adjust the fixation force and position of the patient's trunk according to the patient's body shape and radiotherapy needs, ensuring the stability of the patient during radiotherapy.
[0016] 2. This utility model, through the design of a head fixation frame and a neck support frame, combined with an inflatable airbag, can stably fix the patient's head and neck, effectively preventing inaccurate positioning caused by head or neck movement during radiotherapy. This fixation method not only improves the accuracy of radiotherapy but also greatly reduces the radiotherapy risks that may be caused by body position movement. At the same time, in conjunction with upper limb fixation components, trunk fixation components, and lower limb adjustment components, the patient can maintain their position during radiotherapy, avoiding inaccurate radiotherapy positioning caused by movement during the radiotherapy process. Attached Figure Description
[0017] Figure 1 This is a first-view schematic diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the upper limb fixation component in this utility model;
[0019] Figure 3 This is a schematic diagram of the torso fixation component in this utility model;
[0020] Figure 4 This is a schematic diagram of the lower limb adjustment component in this utility model.
[0021] In the diagram: 1. Radiotherapy bed; 11. Head fixation frame; 12. Neck support frame; 13. Airbag; 14. Limiting hole; 15. Sliding groove; 16. Adjustment groove; 17. Limiting strip; 2. Upper limb fixation assembly; 21. Upper limb fixation support; 22. Rotating shaft; 23. Auxiliary shaft; 24. Connecting plate; 25. Limiting rod; 26. Pull plate; 27. Return spring; 3. Trunk fixation assembly; 31. Bidirectional screw; 32. Connecting block; 33. Limiting plate; 34. Elastic pad; 35. Knob; 4. Lower limb adjustment assembly; 41. Auxiliary plate; 42. Adjustment plate; 43. First connecting shaft; 44. Second connecting shaft; 45. Adjustment hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1, please refer to Figure 1-4 A radiotherapy-assisted positioning device includes a radiotherapy bed 1. One end of the top of the radiotherapy bed 1 is equipped with a head fixation frame 11 and a neck support frame 12 for fixing the patient's head and neck. The other end of the top of the radiotherapy bed 1 has two adjustment slots 16. Each of the two adjustment slots 16 is hinged with a lower limb adjustment component 4 for assisting the positioning of the patient's legs. The top of the radiotherapy bed 1 is also equipped with two sets of upper limb fixation components 2 for fixing the patient's upper limbs and a trunk fixation component 3 for fixing the trunk. Airbags 13 are also provided in the inner walls on both sides of the head fixation frame 11 and the neck support frame 12. The air inlets of the multiple airbags 13 are all connected to an external air source.
[0024] When a patient undergoes radiotherapy, the patient is first assisted to lie on the radiotherapy bed 1, with the patient's head and neck positioned within the head fixation frame 11 and neck support frame 12, respectively. The upper limb fixation component 2 and lower limb adjustment component 4 are adjusted according to the different radiotherapy sites, and the patient's torso is fixed by the trunk fixation component 3. The air bladders 13 in the head fixation frame 11 and neck support frame 12 are inflated, causing the air bladders 13 to continuously expand and fix the patient's neck and head. After fixation, the upper limb fixation component 2, trunk fixation component 3, and lower limb adjustment component 4 help the patient maintain their position to avoid movement during radiotherapy, which could lead to inaccurate radiotherapy positioning.
[0025] Example 2, please refer to Figure 1 and Figure 2 The upper limb fixation component 2 includes an upper limb fixation support 21. One end of the bottom of the upper limb fixation support 21 is hinged to a rotating shaft 22. The other end of the rotating shaft 22 is fixed to the top of the radiotherapy bed 1. The other end of the bottom of the upper limb fixation support 21 is fixedly connected to an auxiliary shaft 23. The bottom of the auxiliary shaft 23 is in contact with the top of the radiotherapy bed 1. A limiting component is also installed on the side wall of the upper limb fixation support 21. The limiting component includes a connecting plate 24. The connecting plate 24 is fixed to the side wall of the upper limb fixation support 21. A limiting rod 25 is slidably provided on the connecting plate 24. A plurality of limiting holes 14 are symmetrically opened on the top of the radiotherapy bed 1. The limiting rod 25 is slidably inserted into the adjacent limiting holes 14. A pull plate 26 is installed on the top of the limiting rod 25. Two sets of return springs 27 are installed between the pull plate 26 and the connecting plate 24.
[0026] When adjusting the upper limb fixation component 2, first pull the pull plate 26 so that the pull plate 26 drives the limiting rod 25 to be pulled out from the adjacent limiting hole 14. Rotate the upper limb fixation support 21 so that the upper limb fixation support 21 rotates along the rotating shaft 22. After rotating the upper limb fixation support 21 to a suitable angle, align the limiting rod 25 with the adjacent limiting hole 14, release the pull plate 26, and under the action of the return spring 27, drive the limiting rod 25 downward to be inserted into the limiting hole 14 so that the position of the upper limb fixation support 21 is fixed.
[0027] By setting an adjustable upper limb fixation support 21, the position of the upper limb fixation support 21 can be adjusted according to the needs of radiotherapy during use, so that the upper limb fixation support 21 can better fix the patient's upper limb and ensure the accuracy of radiotherapy.
[0028] Example 3, please refer to Figure 1-4The torso fixation assembly 3 includes a bidirectional screw 31, which is rotatably connected to the inside of the radiotherapy bed 1. One end of the bidirectional screw 31 penetrates the side wall of the radiotherapy bed 1 and extends to the outside of the radiotherapy bed 1. A knob 35 is fixedly connected to the extended end of the bidirectional screw 31. Two connecting blocks 32 are threaded onto the bidirectional screw 31, and the two connecting blocks 32 are located at both ends of the bidirectional screw 31. Two sliding grooves 15 are opened on the top of the radiotherapy bed 1, and the two connecting blocks 32 are slidably disposed in adjacent sliding grooves 15. Limiting plates 33 are installed on the top of each of the two connecting blocks 32, and elastic pads 3 are installed on the facing surfaces of the two limiting plates 33. 4. The lower limb adjustment assembly 4 includes an auxiliary plate 41 and an adjustment plate 42. The auxiliary plate 41 and the adjustment plate 42 are both disposed in adjacent adjustment slots 16. The two ends of the auxiliary plate 41 are respectively provided with a first connecting shaft 43 and a second connecting shaft 44. The auxiliary plate 41 is rotatably connected to the adjustment slot 16 through the first connecting shaft 43. The auxiliary plate 41 is hinged to the adjustment plate 42 through the second connecting shaft 44. Two adjustment holes 45 are opened at the top end of the adjustment plate 42 away from the auxiliary plate 41. Multiple limiting strips 17 for fixing the adjustment plate 42 are installed in the inner wall of the adjustment slot 16. Baffles are installed on both sides of the auxiliary plate 41 and the adjustment plate 42.
[0029] After the upper limb fixation brace 21 is adjusted, turn the knob 35 to drive the bidirectional screw 31 to rotate. The rotation of the bidirectional screw 31 causes the two connecting blocks 32 to slide in the sliding groove 15 in a direction that brings them closer to each other. This causes the two limiting plates 33 to move in a direction that brings them closer to each other until the two elastic pads 34 are in complete contact with the patient's torso. The patient's torso is fixed by the limiting plates 33 and the elastic pads 34.
[0030] The lower limb adjustment component 4 allows the patient to maintain a flexed knee position. In actual use, the adjustment plate 42 is raised through multiple adjustment holes 45, so that the adjustment plate 42 and the auxiliary plate 41 form a certain angle. When the angle is appropriate, the adjustment plate 42 is locked onto one of the limiting strips 17. The limiting strip 17 limits the adjustment plate 42, thus fixing the auxiliary plate 41 and the adjustment plate 42. This helps the patient place their leg on the auxiliary plate 41 and the adjustment plate 42, causing the patient to flex their knee. At the same time, the baffles set on the auxiliary plate 41 and the adjustment plate 42 can prevent the patient's leg from slipping off the auxiliary plate 41 and the adjustment plate 42.
[0031] Working principle: When a patient undergoes radiotherapy, the patient is first assisted to lie on the radiotherapy bed 1, with the patient's head and neck positioned in the head fixation frame 11 and neck support frame 12 respectively. The airbags 13 in the head fixation frame 11 and neck support frame 12 are inflated, causing the airbags 13 to expand continuously and fix the patient's neck and head.
[0032] Pull the pull plate 26 to pull the limiting rod 25 out of the adjacent limiting hole 14. Rotate the upper limb fixation support 21 to rotate along the rotation axis 22. After rotating the upper limb fixation support 21 to a suitable angle, align the limiting rod 25 with the adjacent limiting hole 14. Release the pull plate 26. Under the action of the return spring 27, the limiting rod 25 will be inserted downward into the limiting hole 14, fixing the position of the upper limb fixation support 21. By adjusting the position of the upper limb fixation support 21, the upper limb fixation support 21 can better fix the patient's upper limb, ensuring the accuracy of radiotherapy.
[0033] After the upper limb fixation brace 21 is adjusted, turn the knob 35 to drive the bidirectional screw 31 to rotate. The rotation of the bidirectional screw 31 causes the two connecting blocks 32 to slide in the sliding groove 15 in a direction that brings them closer to each other. This causes the two limiting plates 33 to move in a direction that brings them closer to each other until the two elastic pads 34 are in complete contact with the patient's torso. The patient's torso is fixed by the limiting plates 33 and the elastic pads 34.
[0034] The lower limb adjustment component 4 allows the patient to maintain a flexed knee position. In practical use, the adjustment plate 42 is raised through multiple adjustment holes 45, forming a certain angle between the adjustment plate 42 and the auxiliary plate 41. When the angle is appropriate, the adjustment plate 42 is locked onto one of the limiting strips 17, fixing the auxiliary plate 41 and the adjustment plate 42. This helps the patient place their legs on the auxiliary plate 41 and the adjustment plate 42, keeping their knees flexed. At the same time, the baffles on the auxiliary plate 41 and the adjustment plate 42 prevent the patient's legs from slipping off. With the assistance of the upper limb fixation component 2, the trunk fixation component 3, and the lower limb adjustment component 4, the patient can maintain their position during radiotherapy, avoiding movement during the radiotherapy process that could lead to inaccurate radiotherapy positioning.
[0035] It should be noted that all the devices in this application are common devices on the market, and can be selected according to the needs of specific use. The circuit connection relationship of each device is a simple series and parallel connection circuit. There is no innovation in the circuit connection part. Those skilled in the art can easily implement it. It belongs to the prior art and will not be described in detail.
[0036] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A radiotherapy auxiliary positioning device comprising a radiotherapy couch (1), characterized in that: One end of the top of the radiotherapy bed (1) is provided with a head fixing frame (11) and a neck support frame (12) for fixing the head and neck of the patient, and the other end of the top of the radiotherapy bed (1) is provided with two adjusting grooves (16), and two lower limb adjusting assemblies (4) for assisting the patient's leg positioning are hinged in the two adjusting grooves (16), and two groups of upper limb fixing assemblies (2) and trunk fixing assemblies (3) for fixing the upper limbs and trunk of the patient are also installed on the top of the radiotherapy bed (1).
2. The radiotherapy auxiliary positioning device according to claim 1, characterized in that: The upper limb fixing assembly (2) comprises an upper limb fixing bracket (21), one end of the bottom of the upper limb fixing bracket (21) is hinged with a rotating shaft (22), the other end of the rotating shaft (22) is fixed to the top of the radiotherapy bed (1), the other end of the bottom of the upper limb fixing bracket (21) is fixedly connected with an auxiliary shaft (23), the bottom of the auxiliary shaft (23) is in contact with the top of the radiotherapy bed (1), and a limiting assembly is also installed on the side wall of the upper limb fixing bracket (21).
3. The radiotherapy auxiliary positioning device according to claim 2, characterized in that: The limiting assembly comprises a connecting plate (24) fixed to the side wall of the upper limb fixing bracket (21), a limiting rod (25) slidably arranged on the connecting plate (24), a plurality of limiting holes (14) symmetrically formed in the top of the radiotherapy bed (1), the limiting rod (25) slidably inserted into adjacent limiting holes (14), and a pull plate (26) mounted on the top of the limiting rod (25), and two groups of reset springs (27) mounted between the pull plate (26) and the connecting plate (24).
4. The radiotherapy auxiliary positioning device according to claim 1, characterized in that: The trunk fixing assembly (3) comprises a bidirectional screw rod (31) rotatably connected to the inside of the radiotherapy bed (1), one end of the bidirectional screw rod (31) penetrating through the side wall of the radiotherapy bed (1) and extending to the outside of the radiotherapy bed (1), and a knob (35) fixedly connected to the extending end of the bidirectional screw rod (31). The bidirectional screw rod (31) is threadedly connected with two connecting blocks (32) located at the two ends of the bidirectional screw rod (31), the top of the radiotherapy bed (1) is provided with two sliding grooves (15), the two connecting blocks (32) are slidably arranged in adjacent sliding grooves (15), and the top of each of the two connecting blocks (32) is provided with a limiting plate (33), and the opposite faces of the two limiting plates (33) are provided with elastic pads (34).
5. The radiotherapy auxiliary positioning device according to claim 1, characterized in that: The lower limb adjusting assembly (4) comprises an auxiliary plate (41) and an adjusting plate (42), the auxiliary plate (41) and the adjusting plate (42) are arranged in adjacent adjusting grooves (16), the two ends of the auxiliary plate (41) are respectively provided with a first connecting shaft (43) and a second connecting shaft (44), the auxiliary plate (41) is rotatably connected to the adjusting groove (16) through the first connecting shaft (43), the auxiliary plate (41) is hingedly connected to the adjusting plate (42) through the second connecting shaft (44), two adjusting holes (45) are formed in one end of the top of the adjusting plate (42) away from the auxiliary plate (41), and the two sides of the auxiliary plate (41) and the adjusting plate (42) are provided with baffle plates. A plurality of limiting strips (17) for fixing the adjusting plate (42) are arranged in the inner wall of the adjusting groove (16).
6. The radiotherapy auxiliary positioning device according to claim 1, characterized in that: The inner wall of the head fixing frame (11) and the neck supporting frame (12) is also provided with air bags (13), and the air inlet ends of the air bags (13) are connected with an external air source.