Adjusting type supporting device for radiotherapy

Abstract

The invention belongs to the technical field of radiotherapy, and particularly relates to an adjustable support for radiotherapy, which comprises a base, a protective pad is adhered to one side of the top of the base, an operation table is connected to the other side of the top of the base through bolts, and a moving mechanism is arranged at the top of the operation table. A supporting seat is arranged at the top of the moving mechanism, a base plate is connected to the top of the supporting seat through a bolt, an adjusting mechanism is arranged between one side of the top of the base plate and the supporting seat, sliding grooves are formed in the two sides of the outer wall of the supporting seat, and sliding blocks are slidably connected to the inner walls of the two sliding grooves; a restraining mechanism is arranged between the two sliding blocks. According to the invention, a patient can be effectively constrained, so that the radiotherapy effect of the patient is improved, and the situation that the patient feels uncomfortable due to long radiotherapy time, so that the patient shakes autonomously, and the radiotherapy of the patient is affected is prevented.

Description

Technical Field

[0001] The invention relates to the field of radiotherapy, and in particular to an adjustable support device for radiotherapy. Background Art

[0002] Radiotherapy is the abbreviation of radiation therapy. It is a method of treating tumors using high-energy rays such as X-rays and gamma rays. Its purpose is to destroy the DNA structure of cancer cells, prevent their proliferation or induce their death, thereby achieving the effect of treating cancer. During radiotherapy, it is crucial to accurately locate and stabilize the patient's body parts to ensure that radiation is only targeted at the tumor area and reduce damage to surrounding healthy tissues. Therefore, it is necessary to use an adjustable support to fix the patient's body. Commonly used adjustable supports are mainly treatment beds, etc.

[0003] After searching, a Chinese patent application with application publication number CN118718276B discloses an adjustable support device for radiotherapy, including a base and a support plate connected to the base, one side of the base is fixedly connected to a connecting plate, the connecting plate is a T-shaped plate, and the other two ends of the connecting plate are fixedly connected to support columns, each support column is provided with a sliding groove on one side, each sliding groove is rotatably connected to a threaded rod, a connecting column is fixedly connected between the top ends of the two support columns, a lifting plate is slidably connected to one side of the support column, and two moving blocks are fixedly connected to one side of the lifting plate; this adjustable support device for radiotherapy, through the automated lifting function, provides a safer, more efficient and humane transfer solution for patients with mobility impairment or limited mobility, greatly improves the convenience of patient transfer, reduces the physical dependence on medical staff, and improves the convenience of medical staff's operation, work efficiency and hospital operation efficiency.

[0004] When an existing support device is used to support a patient during radiotherapy, the patient is usually asked to lie on the support device and radiotherapy is performed on the patient through a radiotherapy device. However, the radiotherapy process is continuous, so the patient needs to keep the body still for a long time. Due to the long radiotherapy time, the patient feels uncomfortable, which causes the patient to shake involuntarily, thereby affecting the patient's radiotherapy. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An adjustable support device for radiotherapy comprises a base, a protective pad is bonded to one side of the top of the base, an operating table is connected to the other side of the top of the base by bolts, a moving mechanism is arranged on the top of the operating table, a support seat is arranged on the top of the moving mechanism, a pad is connected to the top of the support seat by bolts, an adjustment mechanism is arranged between one side of the top of the pad and the support seat, sliding grooves are provided on both sides of the outer wall of the support seat, and sliders are slidably connected to the inner walls of the two sliding grooves, and a constraint mechanism is arranged between the two sliders.

[0006] Preferably, the moving mechanism includes a motor, a screw and a moving block, and one end of the motor is fixedly connected to one end of the screw, a moving groove is provided on the top of the operating table, and a rotation connection is formed between the opposite sides of the moving groove and the two ends of the screw through bearings, the moving block is slidably connected to the inside of the moving groove, a threaded hole is penetrated through one side of the moving block, the threaded hole is threadedly connected to the screw, the top of the moving block is connected to the bottom of the support seat by bolts, the motor is connected to one side of the operating table by bolts, positioning grooves are provided on both sides of the top of the operating table, the two positioning grooves are symmetrically distributed on both sides of the moving groove, the inner walls of the two positioning grooves are slidably connected with positioning plates, and the tops of the two positioning plates are fixedly connected to the bottom of the support seat.

[0007] Preferably, the adjustment mechanism includes a fixing plate, a foot pad and a limit bolt, and the bottom of the fixing plate is connected to the top of the support seat by bolts, guide grooves are provided on both sides of the top of the pad, and guide blocks are slidably connected to the inner walls of the guide grooves, and the tops of the two guide blocks are fixedly connected to the bottom of the foot pad, and limiting grooves are provided at both ends of one side of the foot pad. Limiting rods are connected between the two ends of one side of the fixing plate and the foot pad by bolts, and the limiting rods are made of telescopic material. The outer walls of the two limiting rods are sleeved with a first spring, and a threaded opening is provided through one side of the fixing plate, and the inner wall of the threaded opening is threadedly connected to the limit bolt, and one end of the limit bolt contacts one side of the foot pad.

[0008] Preferably, the constraint mechanism includes a constraint frame, a pressure plate and a constraint assembly, and the two sides of the constraint frame are rotatably connected to the two sliding blocks through bearings, a threaded through hole is penetrated on one side of the constraint frame, a fastening bolt is threadedly connected to the inner wall of the threaded through hole, one end of the fastening bolt contacts with one side of the support seat, a second spring is connected to the constraint frame by bolts on both sides of the top of the pressure plate, a screw hole is penetrated on the top of the constraint frame, a constraint bolt is threadedly connected to the inner wall of the screw hole, a third spring is connected to the top of the constraint assembly and the bottom of the pressure plate by bolts, positioning openings are penetrated on opposite sides of the constraint frame, positioning blocks are slidably connected to the inner walls of the two positioning openings, and the two positioning blocks are fixedly connected to the pressure plate.

[0009] Preferably, the constraint assembly consists of a constraint plate, two side plates, a guide rail, two push plates, two push rods and a transmission assembly, and the two sides of the top of the constraint plate are connected to the bottom of the pressure plate by a third spring, the bottom of the guide rail is connected to the top of the constraint plate by bolts, a connecting port is provided between the bottom of the guide rail and the bottom of the constraint plate, the two push plates are symmetrically slidably connected to the two sides of the guide rail, a push rod is hinged between the bottom of the pressure plate and the two push plates, the two push rods are distributed in an eight-shaped shape, slots are provided on both sides of the bottom of the constraint plate, the inner walls of the two slots are slidably connected with connecting blocks, the bottom of the connecting block is fixedly connected to the side plates, and the two side plates are connected to the constraint plate by a transmission assembly.

[0010] Preferably, the transmission assembly is connected by a first rack, a second rack and a gear, and both sides of the gear are rotatably connected to the connecting port through bearings, one end of the first rack is connected to the side plate by bolts, the top of the second rack is fixedly connected to the push plate, and both sides of the gear are respectively meshed with the first rack and the second rack.

[0011] Preferably, cavities are provided on both sides of the operating table, and the two cavities have different heights. A stabilizing mechanism is provided between the two cavities and the positioning grooves, and the stabilizing mechanism cooperates with the moving mechanism.

[0012] Preferably, the stabilizing mechanism includes an airbag and two counterweight boxes, and the airbag is located between one side of the positioning groove and the positioning plate, the two counterweight boxes are fixed inside the two cavities, the interiors of the two counterweight boxes are filled with counterweight liquid, a conduit is provided between the two counterweight boxes, an air hole is opened between one side of the airbag and one of the counterweight boxes, and an air tube is provided inside the air hole.

[0013] The beneficial effects of the present invention are: 1. The present invention provides a restraint mechanism. When radiotherapy is performed, the patient lies on the cushion board, and the patient's feet are supported by the adjustment mechanism, so that the patient is located at a suitable position on the cushion board, which is convenient for radiotherapy of the patient. During the period, the position of the restraint mechanism is adjusted according to the radiation site of the patient. After the adjustment is completed, the restraint bolt is rotated, and the restraint bolt drives the pressure plate and the restraint plate to move downward. The restraint plate will contact the patient's body when moving downward. At this time, as the pressure plate continues to move downward, the restraint plate will move upward under the action of pressure, and the restraint plate will squeeze the two push rods when moving upward. Since the two push rods are distributed in an eight-shaped shape, when the two push rods are squeezed, the two push rods The rod will push the push plate to slide to both sides under the action of pressure, and the second rack will move with the movement of the push plate. When the second rack contacts the gear, the second rack drives the gear to rotate through the meshing between the gear and the second rack, and the gear drives the first rack to move to one side through the meshing. At this time, the side plate will move with the movement of the first rack. The side plates will be clamped on both sides of the patient's body when moving. The patient can be effectively restrained through the action between the two side plates and the restraint plate, so as to improve the patient's radiotherapy effect and prevent the patient from feeling uncomfortable due to the long radiotherapy time, thereby causing the patient to sway involuntarily, thereby affecting the patient's radiotherapy. 2. The present invention sets up a moving mechanism and a stabilizing mechanism. When the patient is restrained, the moving mechanism is started, and the moving mechanism will drive the patient to move to one side, so that the radiotherapy device is aimed at the patient's radiotherapy site. During this period, the airbag will be compressed, and the gas inside the airbag will be transported to the inside of one of the counterweight boxes through the trachea after being squeezed. At this time, the air pressure inside the counterweight box will increase, and the counterweight liquid inside the counterweight box will be transported to the inside of the other counterweight box through the catheter. Therefore, the movement of the patient can be counterweighted through the cooperation between the two counterweight boxes, so as to improve the stability of the patient's movement and prevent the center of gravity of the support from changing when the patient moves to one side, thereby making the stability of the support poor, and further affecting the patient's radiotherapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an adjustable support for radiotherapy proposed by the present invention; Figure 2 This is a rear structural schematic diagram of an adjustable support for radiotherapy proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a moving mechanism of an adjustable support for radiotherapy proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the adjustment mechanism and the restraint mechanism of an adjustable support for radiotherapy proposed by the present invention; Figure 5This is a schematic diagram of the structure of a restraint mechanism of an adjustable support for radiotherapy proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a restraint assembly of an adjustable support for radiotherapy proposed by the present invention; Figure 7 A schematic diagram of the partial structure of an adjustable support for radiotherapy proposed by the present invention; Figure 8 for Figure 7 Schematic diagram of the structure at A proposed in the figure; Fig. 9 This is a schematic diagram of the stabilizing mechanism structure of an adjustable support for radiotherapy proposed by the present invention.

[0015] In the attached drawings: 1, base; 2, protective pad; 3, operating table; 4, support seat; 5, adjustment mechanism; 6, pad; 7, constraint mechanism; 8, moving mechanism; 9, motor; 10, moving block; 11, moving slot; 12, screw; 13, positioning slot; 14, positioning plate; 15, slide slot; 16, slider; 17, guide slot; 18, guide block; 19, foot pad; 20, limit slot; 21, fixing plate; 22, limit bolt; 23, first spring; 24, constraint frame; 2 5. Positioning port; 26. Positioning block; 27. Pressure plate; 28. Second spring; 29. ​​Restraining bolt; 30. Fastening bolt; 31. Restraining plate; 32. Third spring; 33. Guide rail; 34. Push plate; 35. Notch; 36. Connecting block; 37. Side plate; 38. Connecting port; 39. Push rod; 40. First rack; 41. Second rack; 42. Gear; 43. Stabilizing mechanism; 44. Airbag; 45. Air pipe; 46. Cavity; 47. Counterweight box; 48. Catheter. DETAILED DESCRIPTION

[0016] Example 1, reference Figure 1-Figure 8 , an adjustable support device for radiotherapy, comprising a base 1, a protective pad 2 is bonded to one side of the top of the base 1, an operating table 3 is connected to the other side of the top of the base 1 by bolts, and a moving mechanism 8 is arranged on the top of the operating table 3, a support seat 4 is arranged on the top of the moving mechanism 8, and a pad 6 is connected to the top of the support seat 4 by bolts, an adjusting mechanism 5 is arranged between one side of the top of the pad 6 and the support seat 4, slide grooves 15 are opened on both sides of the outer wall of the support seat 4, and sliders 16 are slidably connected to the inner walls of the two slide grooves 15, and a restraint mechanism 7 is arranged between the two sliders 16, which can effectively restrain the patient, so as to improve the radiotherapy effect of the patient and prevent the patient from feeling uncomfortable due to the long radiotherapy time, thereby causing the patient to shake involuntarily, thereby affecting the patient's radiotherapy.

[0017] On the basis of the above, the moving mechanism 8 includes a motor 9, a screw 12 and a moving block 10, and one end of the motor 9 is fixedly connected to one end of the screw 12, a moving groove 11 is provided on the top of the operating table 3, and the opposite sides of the moving groove 11 are rotatedly connected with the two ends of the screw 12 through bearings, and the moving block 10 is slidably connected to the inside of the moving groove 11, and a threaded hole is penetrated through one side of the moving block 10, and the threaded hole is threadedly connected to the screw 12, the top of the moving block 10 is connected to the bottom of the support seat 4 by bolts, and the motor 9 is connected to one side of the operating table 3 by bolts, and positioning grooves 13 are provided on both sides of the top of the operating table 3, and the two positioning grooves 13 are symmetrically distributed on both sides of the moving groove 11, and the inner walls of the two positioning grooves 13 are slidably connected with positioning plates 14, and the tops of the two positioning plates 14 are fixedly connected to the bottom of the support seat 4.

[0018] On the basis of the above, the adjustment mechanism 5 includes a fixed plate 21, a foot pad 19 and a limit bolt 22, and the bottom of the fixed plate 21 is connected to the top of the support seat 4 by bolts, guide grooves 17 are provided on both sides of the top of the pad 6, and the inner wall of the guide groove 17 is slidably connected with a guide block 18, the top of the two guide blocks 18 is fixedly connected to the bottom of the foot pad 19, and limiting grooves 20 are provided at both ends of one side of the foot pad 19. The two ends of one side of the fixed plate 21 and the foot pad 19 are connected by bolts with a limit rod, the limit rod is made of telescopic material, and the outer walls of the two limit rods are sleeved with a first spring 23. A threaded opening is penetrated through one side of the fixed plate 21, and the inner wall of the threaded opening is threadedly connected to the limit bolt 22, and one end of the limit bolt 22 contacts one side of the foot pad 19.

[0019] On the basis of the above, the constraint mechanism 7 includes a constraint frame 24, a pressure plate 27 and a constraint assembly, and the two sides of the constraint frame 24 are rotatably connected to the two sliders 16 through bearings. A threaded through hole is penetrated on one side of the constraint frame 24, and a fastening bolt 30 is threadedly connected to the inner wall of the threaded through hole. One end of the fastening bolt 30 contacts one side of the support seat 4. A second spring 28 is bolted to the two sides of the top of the pressure plate 27 and the constraint frame 24. A screw hole is penetrated on the top of the constraint frame 24, and a constraint bolt 29 is threadedly connected to the inner wall of the screw hole. A third spring 32 is bolted to the top of the constraint assembly and the bottom of the pressure plate 27. Positioning openings 25 are penetrated on the opposite sides of the constraint frame 24, and the inner walls of the two positioning openings 25 are slidably connected to positioning blocks 26, and the two positioning blocks 26 are fixedly connected to the pressure plate 27.

[0020] On the basis of the above, the constraint assembly is composed of a constraint plate 31, two side plates 37, a guide rail 33, two push plates 34, two push rods 39 and a transmission assembly, and the two sides of the top of the constraint plate 31 are connected to the bottom of the pressure plate 27 by a third spring 32, the bottom of the guide rail 33 is connected to the top of the constraint plate 31 by bolts, and a connecting port 38 is provided between the bottom of the guide rail 33 and the bottom of the constraint plate 31. The two push plates 34 are symmetrically slidably connected to the two sides of the guide rail 33, and a push rod 39 is hinged between the bottom of the pressure plate 27 and the two push plates 34, and the two push rods 39 are distributed in an eight-shaped shape. Slots 35 are provided on both sides of the bottom of the constraint plate 31, and the inner walls of the two slots 35 are slidably connected with connecting blocks 36, the bottom of the connecting block 36 is fixedly connected to the side plates 37, and the two side plates 37 are connected to the constraint plate 31 by a transmission assembly.

[0021] On the basis of the above, the transmission assembly is contacted by the first rack 40, the second rack 41 and the gear 42, and the two sides of the gear 42 are rotatably connected to the connecting port 38 through bearings, one end of the first rack 40 is connected to the side plate 37 by bolts, the top of the second rack 41 is fixedly connected to the push plate 34, and the two sides of the gear 42 are respectively meshed with the first rack 40 and the second rack 41.

[0022] Example 2, reference Figure 1-Figure 9 , an adjustable support for radiotherapy. Compared with Example 1, on the basis of Example 1, cavities 46 are opened on both sides of the inside of the operating table 3, and the heights of the two cavities 46 are different. A stabilizing mechanism 43 is arranged between the two cavities 46 and the positioning groove 13, and the stabilizing mechanism 43 is matched with the moving mechanism 8.

[0023] On the basis of the above, the stabilizing mechanism 43 includes an airbag 44 and two counterweight boxes 47, and the airbag 44 is located between one side of the positioning groove 13 and the positioning plate 14, and the two counterweight boxes 47 are fixed inside the two cavities 46, and the interiors of the two counterweight boxes 47 are filled with counterweight liquid, and a conduit 48 is arranged between the two counterweight boxes 47. An air hole is opened between one side of the airbag 44 and one of the counterweight boxes 47, and an air pipe 45 is arranged inside the air hole.

[0024] In summary, with the aid of the above technical solution of the present invention: during radiotherapy, the patient lies on the pad 6, and the patient's feet are supported by the adjustment mechanism 5, so that the patient is located at a suitable position on the pad 6, thereby facilitating radiotherapy treatment of the patient. During the period, the position of the restraint mechanism 7 is adjusted according to the radiation site of the patient. After the adjustment is completed, the restraint bolt 29 is rotated, and the restraint bolt 29 will drive the pressing plate 27 and the restraint plate 31 to move downward, and the restraint plate 31 will contact the patient's body when moving downward. At this time, as the pressing plate 27 continues to move downward, the restraint plate 31 will be under the pressure. The two push rods 39 are arranged in an eight-shaped pattern. Therefore, when the two push rods 39 are squeezed, the two push rods 39 will push the push plate 34 to slide to both sides under the action of pressure. The second rack 41 will move with the movement of the push plate 34. When the second rack 41 contacts the gear 42, the gear 42 and the second rack 41 are meshed to make the second rack 41 drive the gear 42 to rotate. The gear 42 drives the first rack 40 to move to one side through the meshing. At this time, the side plate The side plates 37 will move with the movement of the first rack 40. The side plates 37 will be clamped on both sides of the patient's body during the movement. The two side plates 37 and the restraining plate 31 can effectively restrain the patient, so as to improve the radiotherapy effect of the patient and prevent the patient from feeling uncomfortable due to the long radiotherapy time, thereby causing the patient to shake involuntarily, thereby affecting the patient's radiotherapy. After the patient is restrained, the moving mechanism 8 is started, and the moving mechanism 8 will drive the patient to move to one side, so that the radiotherapy device is aimed at the patient's radiotherapy site. During this period, the airbag 44 will be compressed, and the gas inside the airbag 44 will be transported to the inside of one of the counterweight boxes 47 through the trachea 45 after being squeezed. At this time, the air pressure inside the counterweight box 47 will increase, and the counterweight liquid inside the counterweight box 47 will be transported to the inside of the other counterweight box 47 through the catheter 48. Therefore, the movement of the patient can be counterweighted through the cooperation between the two counterweight boxes 47, so as to improve the stability of the patient's movement and prevent the center of gravity of the support device from changing when the patient moves to one side, thereby making the stability of the support device poor, thereby affecting the patient's radiotherapy.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable support for radiotherapy, comprising a base (1), a protective pad (2) bonded to one side of the top of the base (1), an operating table (3) connected to the other side of the top of the base (1) by bolts, a moving mechanism (8) is provided on the top of the operating table (3), a support seat (4) is provided on the top of the moving mechanism (8), and a pad (6) is connected to the top of the support seat (4) by bolts, characterized in that: An adjustment mechanism (5) is provided between one side of the top of the pad (6) and the support seat (4), sliding grooves (15) are provided on both sides of the outer wall of the support seat (4), and the inner walls of the two sliding grooves (15) are slidably connected with sliders (16), and a restraining mechanism (7) is provided between the two sliders (16).

2. The adjustable support for radiotherapy according to claim 1, characterized in that: The moving mechanism (8) comprises a motor (9), a screw rod (12) and a moving block (10), and one end of the motor (9) is fixedly connected to one end of the screw rod (12); a moving groove (11) is provided on the top of the operating table (3); two opposite sides of the moving groove (11) and two ends of the screw rod (12) are rotatably connected through bearings; the moving block (10) is slidably connected inside the moving groove (11); a threaded hole is provided through one side of the moving block (10); the threaded hole is threadedly connected to the screw rod (12); the top of the moving block (10) is connected to the bottom of the support seat (4) by bolts; the motor (9) is connected to one side of the operating table (3) by bolts; positioning grooves (13) are provided on both sides of the top of the operating table (3); the two positioning grooves (13) are symmetrically distributed on both sides of the moving groove (11); the inner walls of the two positioning grooves (13) are slidably connected to positioning plates (14); the tops of the two positioning plates (14) are fixedly connected to the bottom of the support seat (4).

3. The adjustable support for radiotherapy according to claim 1, characterized in that: The adjustment mechanism (5) comprises a fixing plate (21), a foot pad (19) and a limit bolt (22), and the bottom of the fixing plate (21) is connected to the top of the support seat (4) by bolts, both sides of the top of the pad (6) are provided with guide grooves (17), the inner wall of the guide groove (17) is slidably connected with a guide block (18), the top of the two guide blocks (18) is fixedly connected to the bottom of the foot pad (19), both ends of one side of the foot pad (19) are provided with limit grooves (20), the two ends of one side of the fixing plate (21) and the foot pad (19) are connected by bolts with a limit rod, the limit rod is made of telescopic material, the outer walls of the two limit rods are sleeved with a first spring (23), a threaded opening is penetrated through one side of the fixing plate (21), the inner wall of the threaded opening is threadedly connected with the limit bolt (22), and one end of the limit bolt (22) contacts one side of the foot pad (19).

4. The adjustable support for radiotherapy according to claim 1, characterized in that: The constraint mechanism (7) comprises a constraint frame (24), a pressure plate (27) and a constraint assembly, and the two sides of the constraint frame (24) are rotatably connected to the two sliders (16) through bearings, a threaded through hole is penetrated through one side of the constraint frame (24), and a fastening bolt (30) is threadedly connected to the inner wall of the threaded through hole, and one end of the fastening bolt (30) contacts one side of the support seat (4), and a second spring (28) is bolted between the two sides of the top of the pressure plate (27) and the constraint frame (24), a screw hole is penetrated through the top of the constraint frame (24), and a constraint bolt (29) is threadedly connected to the inner wall of the screw hole, and a third spring (32) is bolted between the top of the constraint assembly and the bottom of the pressure plate (27), and positioning holes (25) are penetrated through the opposite sides of the constraint frame (24), and the inner walls of the two positioning holes (25) are slidably connected to positioning blocks (26), and the two positioning blocks (26) are fixedly connected to the pressure plate (27).

5. The adjustable support for radiotherapy according to claim 4, characterized in that: The constraint assembly is composed of a constraint plate (31), two side plates (37), a guide rail (33), two push plates (34), two push rods (39) and a transmission assembly, and the two sides of the top of the constraint plate (31) are connected to the bottom of the pressure plate (27) through a third spring (32), the bottom of the guide rail (33) and the top of the constraint plate (31) are connected by bolts, and a connecting port (38) is provided between the bottom of the guide rail (33) and the bottom of the constraint plate (31), and the two push plates (34) are connected to each other. The two sides of the guide rail (33) are slidably connected, and a push rod (39) is connected between the bottom of the pressure plate (27) and the two push plates (34) through a hinge. The two push rods (39) are distributed in an eight-shaped pattern. Notches (35) are provided on both sides of the bottom of the constraint plate (31). The inner walls of the two notches (35) are slidably connected with a connecting block (36). The bottom of the connecting block (36) is fixedly connected to the side plate (37), and the two side plates (37) are connected to the constraint plate (31) through a transmission component.

6. The adjustable support for radiotherapy according to claim 5, characterized in that: The transmission assembly is in contact with a first rack (40), a second rack (41) and a gear (42), and the two sides of the gear (42) are rotatably connected to the connecting port (38) through bearings, one end of the first rack (40) is connected to the side plate (37) by bolts, the top of the second rack (41) is fixedly connected to the push plate (34), and the two sides of the gear (42) are respectively meshed with the first rack (40) and the second rack (41).

7. The adjustable support for radiotherapy according to claim 2, characterized in that: Cavities (46) are provided on both sides of the operating table (3), and the two cavities (46) have different heights. A stabilizing mechanism (43) is provided between the two cavities (46) and the positioning groove (13), and the stabilizing mechanism (43) cooperates with the moving mechanism (8).

8. The adjustable support for radiotherapy according to claim 7, characterized in that: The stabilizing mechanism (43) comprises an airbag (44) and two counterweight boxes (47), wherein the airbag (44) is located between one side of the positioning groove (13) and the positioning plate (14), the two counterweight boxes (47) are fixed inside the two cavities (46), the insides of the two counterweight boxes (47) are filled with counterweight liquid, a conduit (48) is provided between the two counterweight boxes (47), an air hole is provided between one side of the airbag (44) and one of the counterweight boxes (47), and an air pipe (45) is provided inside the air hole.

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