Comprehensive tumor radiotherapy bed
By designing a comprehensive tumor radiation therapy bed, using technical means such as back support mechanism, leg support mechanism and lifting parts, the problems of instability and vibration of the center of gravity during pitch angle adjustment and height lifting of the radiation therapy bed are solved, achieving higher treatment accuracy and patient comfort.
Patent Information
- Application Number
- CN202510538047.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2025-06-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the existing radiation therapy bed is adjusted in pitch angle, the patient has unstable center of gravity, which leads to body displacement and affects the treatment accuracy; at the same time, the vibration of the lifting column is relatively uncomfortable when the height is raised and lowered, affecting the patient's comfort.
A comprehensive tumor radiation therapy bed was designed. By dividing the bed surface into three parts, the back support mechanism and the leg support mechanism respectively control the patient's waist and leg postures, and the segmented pitch adjustment was achieved; at the same time, the lifting member and the height adjustment mechanism were used for height adjustment to ensure the stability of the lifting process and provide multi-directional support through the self-locking wheel.
By controlling the pitch adjustment of the patient's upper and lower body in segments, the patient's center of gravity is maintained, the treatment position is offset, and the treatment accuracy is improved; at the same time, the patient's comfort is improved through good stability through high adjustment and multi-directional support.
Smart Images
Figure CN120132245A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of radiotherapy, and particularly to a comprehensive tumor radiotherapy bed. Background Art
[0002] Tumor radiotherapy is a treatment method that irradiates tumors in a patient's body by generating radiation such as X-rays or γ-rays, destroys the DNA of tumor cells, and makes them lose the ability to reproduce or directly causes cell death. It is widely used in medical institutions such as hospitals, tumor treatment centers, and outpatient surgery centers. When undergoing treatment, patients need to use corresponding treatment beds.
[0003] The patent specification with the publication number CN110393856B discloses a treatment bed for radiotherapy, including a bed board. A support base is arranged on the upper surface of the bottom board. Lifting columns are erected side by side above the support base. A swing frame body is movably connected above the lifting columns. A bed board bracket mechanism is movably connected to the outer circle of the swing frame body. A pitching drive push rod and a swing drive push rod are arranged below the bed board bracket mechanism. The pitching drive push rod and the swing drive push rod are respectively connected to the end and side of the bed board bracket mechanism; This kind of treatment bed controls the pitching action by controlling the telescopic movement of the pitching drive push rod. When the output shaft of the pitching drive push rod extends and retracts, the linkage mechanism drives one end of the bed board bracket mechanism to lift or fall, realizing the control of the pitching action of the bed board. The deficiencies of this technical solution are as follows: First, when the bed board performs the pitching action, it drives the entire bed board. That is, after the pitching action, the patient's whole body is in an inclined state, which easily causes the patient's center of gravity to be unstable. Since radiotherapy needs to last for a period of time, patients in a state of unstable center of gravity for a long time are prone to slipping on the bed, affecting the established irradiation position during radiotherapy. Second, this bed controls the height of the bed body through the lifting columns. Since there is a situation where the patient's height is lifted and lowered when on the bed body during radiotherapy, the lifting columns serve as both the main support structure for supporting the bed body and the lifting main unit, resulting in poor stability during the lifting process, thus affecting the comfort of the patient during the treatment process. Summary of the Invention
[0004] The purpose of the present invention is to provide a comprehensive tumor radiotherapy bed, and the technical problems to be solved are as follows: When the existing radiotherapy bed adjusts the pitching angle, the patient has the problem of unstable center of gravity, resulting in body displacement during radiotherapy, and when the height is lifted and lowered, the patient is easily disturbed by the vibration of the lifting columns during the lifting process and is more uncomfortable.
[0005] The purpose of the present invention can be achieved through the following technical solutions: A comprehensive tumor radiotherapy bed, including a chassis, a plurality of lifting members are installed at the top of the chassis, a top frame is fixedly connected between the tops of the lifting members, height adjustment mechanisms are installed between both sides of the chassis and the top frame, and the height adjustment mechanisms are used to cooperate with the lifting members to vertically move the top frame; a bending member is placed on the top of the top frame, a backrest mechanism is installed between the bending member and the chassis, a leg support member is rotatably connected to one side of the bending member, and a leg support mechanism is installed between the leg support member and the chassis, and the leg support mechanism is used to cooperate with the backrest mechanism to adjust the posture of the patient during radiotherapy.
[0006] As a further solution of the present invention: a plurality of self-locking wheels are installed along the edges on both sides of the chassis.
[0007] As a further solution of the present invention: the lifting member includes a bottom support column fixedly connected to the side frame of the chassis, a top support column is fixedly connected to the bottom surface of the top frame to fit the bottom support column, and the top support column is sleeved with the adjacent bottom support column.
[0008] As a further solution of the present invention: the height adjustment mechanism includes a main slide rail fixedly connected to the side frames on both sides of the chassis, a main slider is slidably connected to the top of the main slide rail, a height adjustment cylinder is installed on the top of the chassis on one side of the main slide rail, the end of the telescopic rod of the height adjustment cylinder is fixedly connected to the main slider, a secondary slide rail is fixedly connected to the bottom surface of the top frame directly above the main slide rail, a secondary slider is slidably connected to the bottom surface of the secondary slide rail, a main lifting plate is rotatably connected to one side of the main slider, a secondary lifting plate is rotatably connected to one side of the secondary slider, the main lifting plate and the secondary lifting plate are in a cross shape and are rotatably connected at the intersection point, one end of the main lifting plate away from the main slider is rotatably connected to the bottom surface of the top frame, and one end of the secondary lifting plate away from the secondary slider is rotatably connected to the top of the chassis.
[0009] As a further solution of the present invention: the bending member includes a backrest plate, a lumbar support plate is rotatably connected to one side of the backrest plate, the backrest plate and the top frame are in a separated state, and the lumbar support plate is fixedly connected to the top of the top frame.
[0010] As a further solution of the present invention: the leg support member includes a leg support plate, a tail frame is fixedly connected to the bottom surface of the leg support plate, and the tail frame is rotatably connected to the adjacent side of the top frame.
[0011] As a further solution of the present invention: The backrest mechanism includes a bottom rod fixedly connected to the middle of the chassis. Both sides of the top of the bottom rod are rotatably connected with backrest adjusting cylinders. The top of the telescopic rod of the backrest adjusting cylinder is rotatably connected with a lifting rod. A top rod is fixedly connected to the middle of the lifting rod on the bottom surface of the top frame. A bracket is rotatably connected between the top rod and the lifting rod. A plurality of rollers are evenly installed between the top ends of the two lifting rods. The rollers are in rolling connection with the bottom surface of the backrest plate.
[0012] As a further solution of the present invention: Cross frames are arranged on both sides of the chassis. The leg rest mechanism includes two leg adjusting cylinders rotatably connected to the top of one of the cross frames. The top of the telescopic rod of the leg adjusting cylinder is rotatably connected with a leg adjusting rod. One end of the leg adjusting rod is rotatably connected to the bottom surface of the top frame, and the other end is rotatably connected with a connecting rod. The end of the connecting rod away from the leg adjusting rod is rotatably connected to the middle of the bottom surface of the tail frame.
[0013] The beneficial effects of the present invention: 1. In the present invention, the radiotherapy bed surface is divided into three parts, namely, a backrest plate controlled by the backrest mechanism to rise and fall at one end, a lumbar support plate fixedly connected to the top frame in the middle, and a leg push plate controlled by the leg rest mechanism to rise and fall at the other end. During use, the rotation of the lifting rod can be controlled by controlling the backrest adjusting cylinder to adjust the lying flat and lifting states of the patient's waist. And the rotation of the tail frame can be controlled by controlling the leg adjusting cylinder to adjust the vertical fan-shaped area movement state of the patient's legs. With the support of the backrest plate for the patient's waist, the radiotherapy for partial pitching body positions can be realized by segmentally controlling the pitching adjustment of the patient's upper body and lower body; further, during this treatment, since the center of gravity position of the patient's waist is always in a stable state, the center of gravity of the patient's body is always in a stable state. The technical advantage is that the stability of the center of gravity avoids the situation that the treatment position deviates due to the unstable center of gravity of the patient during pitching radiotherapy, thereby improving the radiotherapy accuracy of the treatment point during pitching body position treatment. 2. By installing a lifting member between the chassis and the top frame, and installing height adjusting mechanisms on both sides between the chassis and the top frame, during use, the height of the treatment bed is adjusted by changing the cross state of the main lifting plate and the auxiliary lifting plate cross-installed between the chassis and the top frame by the height adjusting cylinder, and during the height adjustment process, the lifting member plays a guiding role. The technical advantage is that it is different from the single-point lifting structure of the existing lifting column that is both a lifting unit and a supporting unit. With the four-corner support and guidance of the lifting member and the height adjusting structure of the four-point support surface on both sides of the bed body, when adjusting the height of the treatment bed, it has the lifting function while maintaining the stability during the lifting process. The purpose is to improve the comfort of the patient in the lifting radiotherapy state; in addition, combined with the adjustment of the pitching angle and the horizontal displacement locking of the self-locking wheels, the radiotherapy bed can realize the multi-directional support function for the patient in space. Brief Description of the Drawings
[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a bottom view of the present invention; Figure 3 is the present invention Figure 1 a detailed enlarged view of part A in; Figure 4 is a schematic diagram of the partial structure at the backrest mechanism of the present invention; Figure 5 is a schematic diagram of the partial structure at the leg rest mechanism of the present invention.
[0016] In the figure: 1, chassis; 2, self-locking wheels; 3, lifting members; 31, bottom support columns; 32, top support columns; 4, top frame; 5, height adjustment mechanism; 51, main slide rails; 52, main sliders; 53, height adjustment cylinders; 54, secondary slide rails; 55, secondary sliders; 56, main lifting plates; 57, secondary lifting plates; 6, bending members; 61, backrest plates; 62, lumbar support plates; 7, backrest mechanism; 71, bottom rods; 72, backrest adjustment cylinders; 73, lifting rods; 74, top rods; 75, brackets; 76, rollers; 8, leg support members; 81, leg support plates; 82, tail frames; 9, leg rest mechanism; 91, leg adjustment cylinders; 92, leg adjustment rods; 93, connecting rods. Detailed Embodiments
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.
[0018] As Figures 1 to 5 shown, a comprehensive tumor radiotherapy bed includes a chassis 1, four self-locking wheels 2 are installed along the edges on both sides of the chassis 1, four lifting members 3 are installed at the four corners at the top of the chassis 1, a top frame 4 is fixedly connected between the tops of the respective lifting members 3, height adjustment mechanisms 5 are installed between both sides of the chassis 1 and the top frame 4, and the height adjustment mechanisms 5 are used to cooperate with the lifting members 3 to vertically move the top frame 4; a bending member 6 is placed on the top of the top frame 4, a backrest mechanism 7 is installed between the bending member 6 and the chassis 1, a leg support member 8 is rotatably connected to one side of the bending member 6, and a leg rest mechanism 9 is installed between the leg support member 8 and the chassis 1, and the leg rest mechanism 9 is used to cooperate with the backrest mechanism 7 to adjust the posture of the patient during radiotherapy; It should be noted that the chassis 1 includes side frames on both sides and a cross frame connecting the two side frames. Reinforcing frames are fixedly connected to the middle parts of the two side frames. The self-locking wheels 2 are universal self-locking wheels. When a patient undergoes radiotherapy, the bed body can be shifted horizontally in multiple directions by pushing it, and after the shifting is completed, the shifted state can be fixed by locking the self-locking wheels 2, so as to meet the patient's need for horizontal shifting treatment. The horizontal movement includes multi-directional shifting in the front, back, left, right, and oblique directions.
[0019] As Figure 1 and Figure 3 shown, the lifting member 3 includes a bottom support column 31 fixedly connected to the side frame of the chassis 1. A top support column 32 is fixedly connected to the bottom surface of the top frame 4 to adapt to the bottom support column 31, and the top support column 32 is sleeved with the bottom support column 31; The height adjustment mechanism 5 includes main slide rails 51 fixedly connected to the two side frames of the chassis 1. A main slider 52 is slidably connected to the top end of the main slide rail 51. A height adjustment cylinder 53 is installed on one side of the main slide rail 51 at the top end of the chassis 1. The end of the telescopic rod of the height adjustment cylinder 53 is fixedly connected to the main slider 52. A secondary slide rail 54 is fixedly connected to the bottom surface of the top frame 4 directly above the main slide rail 51. A secondary slider 55 is slidably connected to the bottom surface of the secondary slide rail 54. One side of the main slider 52 is rotatably connected to a main lifting plate 56, and one side of the secondary slider 55 is rotatably connected to a secondary lifting plate 57. The main lifting plate 56 and the secondary lifting plate 57 are in a cross shape and are rotatably connected at the intersection point. The cross angle between the main lifting plate 56 and the secondary lifting plate 57 is 30 - 60°, and a self-lubricating bearing is provided at the intersection point. The material of the lifting plate is 6061-T6 aluminum alloy. The end of the main lifting plate 56 away from the main slider 52 is rotatably connected to the bottom surface of the top frame 4, and the end of the secondary lifting plate 57 away from the secondary slider 55 is rotatably connected to the top end of the chassis 1; It should be noted that since the height adjustment cylinder 53 is fixedly connected to the main slider 52, when the height adjustment cylinder 53 drives the telescopic rod to extend or retract, it will drive the main slider 52 to move along the main slide rail 51. During the movement, the main lifting plate 56 rotatably connected to the top end of the main slider 52 will move towards or away from the secondary lifting plate 57, thereby driving the secondary lifting plate 57 to move along the secondary slide rail 54. During the process of the mutually cross-connected main lifting plate 56 and secondary lifting plate 57 moving closer to or away from each other, the lifting control of the top frame 4 connected to the top end is accompanied, and a lifting member 3 is installed between the top frame 4 and the chassis 1, that is, the lifting process is limited by the lifting member 3. With the multi-point support of the main lifting plate 56 and the secondary lifting plate 57 on both sides of the bottom of the chassis 1, the bed body on the top of the top frame 4 can maintain its stability during the lifting process, that is, multi-point support and the limit during lifting. The purpose is to improve the stability of the lifting process, which is beneficial to providing a more comfortable lifting experience for patients; in addition, a hydraulic buffer is provided in the height adjustment cylinder 53 to absorb the lifting impact; combined with the ergonomic requirements of medical equipment, the dual advantages of comfort and treatment accuracy are highlighted.
[0020] As Figure 2 , Figure 4 and Figure 5 shown, the bending member 6 and the leg support member 8 form a bed body. The bending member 6 includes a backrest support plate 61, one side of the backrest support plate 61 is rotatably connected to a lumbar support plate 62, the leg support member 8 includes a leg support plate 81, the bottom surface of the leg support plate 81 is fixedly connected to a tail frame 82, and the tail frame 82 is rotatably connected to the top frame 4 on the adjacent side; wherein, the backrest support plate 61 and the top frame 4 are in a separated state, and the lumbar support plate 62 is fixedly connected to the top end of the top frame 4; The backrest support mechanism 7 includes a bottom rod 71 fixedly connected to the middle of the chassis 1. Both sides of the top end of the bottom rod 71 are rotatably connected to a backrest adjusting cylinder 72. The top end of the telescopic rod of the backrest adjusting cylinder 72 is rotatably connected to a lifting rod 73. The lifting rod 73 is preferably in a "V" shape. The middle of the bottom surface of the top frame 4 at the inflection point position of the lifting rod 73 is fixedly connected to a top rod 74. A bracket 75 is arranged at the bottom of the lifting rod 73, and the bracket 75 is rotatably connected to the lifting rod 73. A plurality of rollers 76 are evenly installed between the top ends of the two lifting rods 73, and the rollers 76 are in rolling connection with the bottom surface of the backrest support plate 61; It should be noted that during the telescopic process of the telescopic rods of the backrest adjusting cylinders 72 on both sides of the bottom rod 71, the lifting rod 73 will be driven to rotate. With the rotational support of the bracket 75, the top end of the lifting rod 73 drives the backrest support plate 61 to rise and fall. And during the rising and falling process, the rollers 76 installed between the two lifting rods 73 play a role of rolling support for the rising and falling process, so as to reduce the vibration during the rising and falling process and improve the protection effect on the patient's back during rising and falling. Among them, when the telescopic rod of the backrest adjusting cylinder 72 extends, the backrest support plate 61 descends, and when its telescopic rod retracts, the backrest support plate 61 rises.
[0021] The leg support mechanism 9 includes two leg adjusting cylinders 91 rotatably connected to one of the cross frames. The top end of the telescopic rod of the leg adjusting cylinder 91 is rotatably connected to a leg adjusting rod 92. The leg adjusting rod 92 is preferably in a "V" shape, and one end of it is rotatably connected to the bottom surface of the top frame 4, and the other end is rotatably connected to a connecting rod 93. The end of the connecting rod 93 away from the leg adjusting rod 92 is rotatably connected to the middle of the bottom surface of the tail frame 82; It should be noted that during the telescopic process of the telescopic rod of the leg adjusting cylinder 91, the leg adjusting rod 92 rotatably connected to it is driven to rotate. Since the leg support plate 81 of the leg support member 8 and the tail frame 82 are fixedly connected, and the leg support member 8 is directly rotatably connected to one side of the top frame 4, when the leg adjusting rod 92 is driven to rotate by the telescopic rod, the leg support plate 81 can perform a fan-shaped movement in the vertical direction, thereby realizing the lifting or lowering action of the legs of the radiotherapy patient; Furthermore, whether it is the lifting adjustment of the backrest mechanism 7 for the patient's back or the lifting adjustment of the leg rest mechanism 9 for the patient's legs, the patient's waist is always located at the backrest plate 61. Since the center of gravity of the human body is at the waist position, when performing radiotherapy on the upper body of the patient by lifting the body position or radiotherapy on the leg position of the patient by adjusting the pitching angle, the patient's body is always in a stable center of gravity state, that is, the patient's body will not shift during the treatment process, resulting in the problem that the original treatment position deviates and goes wrong. Combining with the height adjustment of the patient's body position by the lifting member 3 and the heightening mechanism 5, and the multi-directional movement of the self-locking wheels 2 in the horizontal direction, the patient is in a comfortable and stable center of gravity state during radiotherapy in all directions, thereby enhancing the protective effect of the radiotherapy bed on the patient during treatment.
[0022] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.
Claims
1. A comprehensive tumor radiotherapy bed, comprising a base frame (1), characterized in that: A plurality of lifting members (3) are installed at the top of the base frame (1), a top frame (4) is fixedly connected between the tops of the lifting members (3), a height adjustment mechanism (5) is installed between the base frame (1) and both sides of the top frame (4), the height adjustment mechanism (5) is used to cooperate with the lifting members (3) to move the top frame (4) in a vertical direction; a bending member (6) is placed at the top of the top frame (4), a back support mechanism (7) is installed between the bending member (6) and the base frame (1), a leg support member (8) is rotatably connected to one side of the bending member (6), a leg support mechanism (9) is installed between the leg support member (8) and the base frame (1), and the leg support mechanism (9) is used to cooperate with the back support mechanism (7) to adjust the posture of the patient during radiotherapy.
2. A comprehensive tumor radiotherapy bed according to claim 1, characterized in that: A plurality of self-locking wheels (2) are installed along the edges of both sides of the base frame (1).
3. The comprehensive tumor radiation therapy bed according to claim 1, characterized in that: The lifting member (3) comprises a bottom support column (31) fixedly connected to the side frame of the bottom frame (1); the bottom surface of the top frame (4) is adapted to fit the bottom support column (31) and is fixedly connected to a top support column (32); the top support column (32) is sleeved with an adjacent bottom support column (31).
4. The comprehensive tumor radiation therapy bed according to claim 1, characterized in that: The height adjustment mechanism (5) comprises a main slide rail (51) fixedly connected to the side frames on both sides of the base frame (1), the top of the main slide rail (51) is slidably connected to a main slide block (52), a height adjustment cylinder (53) is installed at the top of the base frame (1) on one side of the main slide rail (51), the end of the telescopic rod of the height adjustment cylinder (53) is fixedly connected to the main slide block (52), the bottom surface of the top frame (4) is fixedly connected to a secondary slide rail (54) just above the main slide rail (51), and the bottom surface of the secondary slide rail (54) is slidably connected to the main slide rail (51). The main slider (52) is rotatably connected to a secondary slider (55); one side of the main slider (52) is rotatably connected to a main lifting plate (56); one side of the secondary slider (55) is rotatably connected to a secondary lifting plate (57); the main lifting plate (56) and the secondary lifting plate (57) are in a cross shape and are rotatably connected at the intersection; one end of the main lifting plate (56) away from the main slider (52) is rotatably connected to the bottom surface of the top frame (4); and one end of the secondary lifting plate (57) away from the secondary slider (55) is rotatably connected to the top of the bottom frame (1).
5. The comprehensive tumor radiation therapy bed according to claim 1, characterized in that: The bending member (6) comprises a back support plate (61), one side of the back support plate (61) is rotatably connected to a waist support plate (62), the back support plate (61) and the top frame (4) are in a separated state, and the waist support plate (62) is fixedly connected to the top of the top frame (4).
6. The comprehensive tumor radiation therapy bed according to claim 1, characterized in that: The leg support member (8) comprises a leg support plate (81), the bottom surface of the leg support plate (81) is fixedly connected to a tail frame (82), and the tail frame (82) is rotatably connected to the top frame (4) on the adjacent side.
7. The comprehensive tumor radiation therapy bed according to claim 5, characterized in that: The back supporting mechanism (7) comprises a bottom rod (71) fixedly connected to the middle part of the bottom frame (1), both sides of the top end of the bottom rod (71) are rotatably connected to a back adjusting cylinder (72), the top end of the telescopic rod of the back adjusting cylinder (72) is rotatably connected to a lifting rod (73), the bottom surface of the top frame (4) is fixedly connected to a top rod (74) in the middle part of the lifting rod (73), a bracket (75) is rotatably connected between the top rod (74) and the lifting rod (73), and a plurality of rollers (76) are evenly installed between the top ends of the two lifting rods (73), and the rollers (76) are rollingly connected to the bottom surface of the back supporting plate (61).
8. The comprehensive tumor radiation therapy bed according to claim 6, characterized in that: The bottom frame 1 is provided with cross frames on both sides, and the leg support mechanism (9) includes two leg adjustment cylinders (91) rotatably connected to the top of one of the cross frames, the top of the telescopic rod of the leg adjustment cylinder (91) is rotatably connected to a leg adjustment rod (92), one end of the leg adjustment rod (92) is rotatably connected to the bottom surface of the top frame (4), and the other end is rotatably connected to a connecting rod (93), and the end of the connecting rod (93) away from the leg adjustment rod (92) is rotatably connected to the middle part of the bottom surface of the tail frame (82).
Citation Information
Patent Citations
A treatment bed for radiotherapy
CN110393856B