Whole body radiotherapy fixing device

Abstract

The invention belongs to the field of fixing equipment, and particularly relates to a whole body radiotherapy fixing device which comprises a base, a supporting box is fixedly mounted at the top of the base, a supporting plate is mounted at the top of the supporting box, a mounting plate is mounted at the top of the supporting plate through a detachable structure, and an ergonomic pad is fixedly mounted at the top of the mounting plate. A human body groove matched with a human body is formed in the top of the human engineering pad, a leg fixing mechanism and a chest fixing mechanism are arranged on the supporting plate, and a fixed headrest is fixedly installed on one side of the top of the human engineering pad. The design is reasonable, by arranging the ergonomic pad, the situation that discomfort or pain of a patient is easily caused by long-time treatment can be avoided, and the ergonomic pad can be disassembled, assembled and replaced to be conveniently used by different patients; the purpose of fixing the temperature of the patient can be achieved through the first binding belt, the second binding belt, the fixing belt, the arc-shaped thigh fixing plate and the arc-shaped shank fixing plate.

Description

Technical Field

[0001] The invention relates to the technical field of fixing equipment, and in particular to a fixing device for whole body radiotherapy. Background Art

[0002] Whole body radiotherapy is one of the important means of cancer treatment. It aims to accurately destroy tumor cells through high-energy rays while minimizing damage to surrounding healthy tissues. During this process, the patient's stable and precise position is the key prerequisite to ensure the effectiveness of the treatment.

[0003] However, the whole-body radiotherapy fixation devices currently used in clinical practice generally have many problems that need to be solved. On the one hand, most traditional fixation devices do not fully consider the principles of ergonomics. During long-term treatment, the contact parts between the patient's body and the fixation device are very likely to cause discomfort or pain due to long-term pressure and lack of fit. For example, patients may experience local skin redness and numbness, or even more serious pressure sores. This will not only reduce the patient's treatment experience, but may also cause the patient to move the body unconsciously during treatment, thereby affecting the accuracy of radiotherapy and reducing the treatment effect.

[0004] On the other hand, due to individual differences among patients, such as height, body shape, and body proportions, existing fixation devices are often difficult to adjust individually. For patients who are fatter or thinner, or patients with special limb lengths, conventional fixation devices may not be able to provide the appropriate fixation strength and position, which greatly reduces the fixation effect. This not only fails to guarantee the accuracy of the treatment, but may also cause the patient to feel uneasy during the treatment due to loose fixation, further affecting the smooth progress of the treatment. Therefore, we proposed a whole-body radiotherapy fixation device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a whole body radiotherapy fixation device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A whole body radiotherapy fixation device comprises a base, a support box is fixedly installed on the top of the base, a support plate is installed on the top of the support box, a mounting plate is installed on the top of the support plate through a detachable structure, an ergonomic pad is fixedly installed on the top of the mounting plate, a human body groove adapted to the human body is opened on the top of the ergonomic pad, a leg fixing mechanism and a chest fixing mechanism are arranged on the support plate, a fixed headrest is fixedly installed on one side of the top of the ergonomic pad, a first restraint belt for fixing the head is arranged on the top of the fixed headrest, two sole fixing plates are fixedly installed on one side of the ergonomic pad, and a second restraint belt for fixing the soles of the feet is arranged on one side of the sole fixing plate;

[0008] The leg fixing mechanism comprises a sliding seat, a driving hole, a driving plate, a connecting plate, an arc-shaped calf fixing plate and an arc-shaped thigh fixing plate. The front and rear sides of the support plate are slidably installed with sliding seats. The front side of the sliding seat is provided with a driving hole, and a driving plate is slidably installed in the driving hole. Connecting plates are fixedly installed on both sides of the driving plate. The arc-shaped calf fixing plate and the arc-shaped thigh fixing plate are rotatably installed on the bottom of the corresponding connecting plate through a rotating mechanism. The chest fixing mechanism comprises a U-shaped seat, a U-shaped rod, a rotating shaft, a fixing belt and a fixing frame. The U-shaped seat is fixedly installed on the bottom of the support plate, a plurality of U-shaped rods are fixedly installed on the rear side of the U-shaped seat, a rotating shaft is rotatably installed on the inner walls on both sides of the U-shaped rod, a fixing belt is fixedly mounted on the rotating shaft, a plurality of fixing frames are fixedly installed on the front side of the U-shaped seat, and the fixing belts are adapted to the corresponding fixing frames.

[0009] Preferably, the top of the support plate is provided with a plurality of positioning grooves, the bottom of the mounting plate is fixedly installed with a plurality of positioning seats, and the positioning seats are adapted to the corresponding positioning grooves, a fixed groove is provided on one side of the positioning seat, movable grooves are provided on both sides of the support plate, a plurality of movable holes are provided on the inner wall of one side of the movable groove, and the movable holes are connected with the corresponding positioning grooves, and a plurality of fixing seats are fixedly installed on one side of the movable plate, and the fixing seats are adapted to the corresponding fixing grooves.

[0010] Preferably, a sealing plate is fixedly installed in the movable groove, a threaded hole is opened on the sealing plate, a driving screw is installed in the threaded hole, one end of the driving screw is rotatably installed on the movable plate, and the other end of the driving screw extends to the outside of the support plate and is fixedly installed with a rotating plate.

[0011] Preferably, two connecting plates are fixedly installed on the front and rear sides of the support plate, a same rectangular rod is fixedly installed between the two connecting plates, a rectangular hole is opened on the sliding seat, and the sliding seat is slidably mounted on the corresponding rectangular rod through the rectangular hole.

[0012] Preferably, a plurality of slots are formed at equal intervals at the bottom of the rectangular rod, a second threaded hole is formed on the inner wall of the bottom of the rectangular hole, a fixing bolt is installed in the inner thread of the second threaded hole, and the fixing bolt is matched with the corresponding slot.

[0013] Preferably, the same threaded rod is rotatably mounted on the top and bottom inner walls of the driving hole, the top end of the threaded rod extends to the top of the sliding seat and is fixedly mounted with a handwheel, and the driving plate is threadedly sleeved on the corresponding threaded rod.

[0014] Preferably, the rotating mechanism includes a vertical plate, a rotating shaft and a rotating seat, two vertical plates are fixedly installed at the bottom of the horizontal plate, the same rotating shaft is rotatably installed between the two vertical plates, a rotating seat is fixedly installed on the rotating shaft, and the arc-shaped calf fixing plate and the arc-shaped thigh fixing plate are fixedly connected to the corresponding rotating seats.

[0015] Preferably, a worm wheel is fixedly mounted on the rotating shaft, a driving shaft is rotatably mounted on the transverse plate, a worm meshing with the worm wheel is fixedly mounted on the bottom end of the driving shaft, and a knob is fixedly mounted on the top end of the driving shaft extending above the transverse plate.

[0016] Preferably, a clamping plate for fixing the belt is slidably mounted on the inner walls on both sides of the fixing frame, a threaded hole three is opened on the inner wall on the front side of the fixing frame, a fixing screw is installed with the inner thread of the threaded hole three, one end of the fixing screw is rotatably mounted on the clamping plate, and the other end of the fixing screw extends to the outside of the fixing frame and is fixedly mounted with a handle.

[0017] Preferably, a limiting hole is provided on the front inner wall of the fixing frame, a limiting rod is slidably installed in the limiting hole, and one end of the limiting rod is fixedly installed on the corresponding clamping plate.

[0018] Beneficial effects of the present invention:

[0019] 1. By providing an ergonomic pad, when the patient lies in the human body groove on the ergonomic pad, the ergonomic design can avoid the discomfort or pain caused by long-term treatment. By rotating the rotating plate and the driving screw, under the action of the threaded hole 1, the driving screw can be moved while rotating, and the driving screw can lead the moving plate and the fixed seat to move, so that the fixed seat can be inserted into or out of the corresponding fixing groove, and the positioning seat can be fixed and released, so that the installation plate and the ergonomic pad can be easily disassembled and assembled, so that the ergonomic pad can be replaced for different people;

[0020] 2. When the patient lies on the ergonomic mat, the patient's head can be placed in the fixed headrest, and the patient's head can be reinforced by the first restraint belt. The patient's feet are placed on one side of the sole fixing plate, and the patient's feet can be fixed by the second restraint belt. By turning the hand wheel and the threaded rod, the rotation of the threaded rod can drive the driving plate to move downward, and the driving plate can be driven to the arc-shaped calf fixing plate and the arc-shaped thigh fixing plate through the horizontal plate, thereby achieving the purpose of fixing the patient's legs;

[0021] 3. Select a fixing belt in different positions according to the needs, wrap the fixing belt around the patient's chest and pass through the corresponding fixing frame. The patient's chest can be fixed by tightening the fixing belt. Then, turn the handle and the fixing screw. Under the action of the threaded hole three, the fixing screw can be moved while rotating. The fixing screw can be moved with the clamping plate. The clamping plate can press the fixing belt, so that the chest of different patients can be fixed according to the needs.

[0022] 4. By rotating the fixing bolt, under the action of the second threaded hole, the fixing bolt can be rotated and moved at the same time, and the movement of the fixing bolt can be inserted into or out of the corresponding slot, so that the purpose of fixing and releasing the sliding seat 301 can be achieved. By moving the sliding seat 301, the sliding seat 301 can lead the arc-shaped calf fixing plate and the arc-shaped thigh fixing plate to move in the horizontal direction, so that the purpose of adjusting the positions of the arc-shaped calf fixing plate and the arc-shaped thigh fixing plate as needed can be achieved;

[0023] 5. By turning the knob, the knob can drive the driving shaft to rotate, the rotation of the driving shaft can drive the worm to rotate, the worm can drive the worm wheel to rotate, the rotation of the worm wheel can drive the rotating gear to rotate, the rotating gear can drive the rotating shaft to rotate, and the rotating shaft can drive the corresponding arc-shaped calf fixing plate and arc-shaped thigh fixing plate to rotate through the rotating seat, thereby achieving the purpose of adjusting the angles of the arc-shaped calf fixing plate and the arc-shaped thigh fixing plate as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a whole body radiotherapy fixation device proposed by the present invention;

[0025] Figure 2 This is a bottom-up stereoscopic structural schematic diagram of a whole-body radiotherapy fixation device proposed by the present invention;

[0026] Figure 3 A partial cross-sectional three-dimensional structural schematic diagram of a whole-body radiotherapy fixation device proposed by the present invention;

[0027] Figure 4This is a schematic structural diagram of part A of a whole body radiotherapy fixation device proposed by the present invention;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of a chest fixation mechanism of a whole-body radiotherapy fixation device proposed by the present invention;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of a chest fixation mechanism of a whole-body radiotherapy fixation device proposed by the present invention;

[0030] Figure 7 This is a schematic structural diagram of part B of a whole-body radiotherapy fixation device proposed by the present invention;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of a leg fixing mechanism of a whole body radiotherapy fixing device proposed by the present invention;

[0032] Fig. 9 A schematic cross-sectional three-dimensional structural diagram of a leg fixing mechanism of a whole body radiotherapy fixing device proposed by the present invention;

[0033] Fig.10 A schematic cross-sectional structural diagram of a leg fixing mechanism of a whole body radiotherapy fixing device proposed by the present invention from another perspective;

[0034] Fig.11 This is a schematic structural diagram of part C of a whole-body radiotherapy fixation device proposed by the present invention.

[0035] In the figure: 101, base; 102, support box; 103, support plate; 104, mounting plate; 105, ergonomic pad; 106, human body groove; 201, fixed headrest; 202, restraint belt 1; 203, foot fixing plate; 204, restraint belt 2; 3, leg fixing mechanism; 301, sliding seat; 302, drive hole; 303, drive plate; 304, horizontal plate; 305, arc-shaped calf fixing plate; 306, arc-shaped thigh fixing plate; 31, threaded rod; 32, hand wheel; 4, chest fixing mechanism; 401, U-shaped seat; 402, U-shaped rod; 403, rotating shaft; 404, fixing belt; 405, fixing frame; 4 1. Clamping plate; 42. Threaded hole three; 43. Fixing screw; 44. Handle; 45. Limiting rod; 501. Positioning slot; 502. Positioning seat; 503. Moving slot; 504. Moving plate; 505. Fixing seat; 506. Moving hole; 507. Fixing slot; 601. Threaded hole one; 602. Driving screw; 603. Rotating plate; 701. Connecting plate; 702. Rectangular rod; 703. Rectangular hole; 704. Slot; 705. Threaded hole two; 706. Fixing bolt; 801. Vertical plate; 802. Rotating shaft; 803. Rotating seat; 901. Worm gear; 902. Driving shaft; 903. Worm; 904. Knob. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" indicates a way of existence, which can be a connection method such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be an intermediate component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] Reference Figure 1-11A whole-body radiotherapy fixation device comprises a base 101, a support box 102 is fixedly installed on the top of the base 101, a support plate 103 is installed on the top of the support box 102, a mounting plate 104 is installed on the top of the support plate 103 through a detachable structure, an ergonomic pad 105 is fixedly installed on the top of the mounting plate 104, a human body groove 106 adapted to the human body is opened on the top of the ergonomic pad 105, a leg fixing mechanism 3 and a chest fixing mechanism 4 are provided on the support plate 103, a fixed headrest 201 is fixedly installed on one side of the top of the ergonomic pad 105, a restraint belt 202 for fixing the head is provided on the top of the fixed headrest 201, two sole fixing plates 203 are fixedly installed on one side of the ergonomic pad 105, and a restraint belt 204 for fixing the sole of the foot is installed on one side of the sole fixing plate 203, and the purpose of fixing the sole of the patient's foot can be achieved by providing the restraint belt 204.

[0040] The leg fixing mechanism 3 includes a sliding seat 301, a driving hole 302, a driving plate 303, a connecting plate 701, an arc-shaped calf fixing plate 305 and an arc-shaped thigh fixing plate 306. The front and rear sides of the support plate 103 are both slidably mounted with the sliding seat 301. The front side of the sliding seat 301 is provided with a driving hole 302. The driving plate 303 is slidably mounted in the driving hole 302. The connecting plates 701 are fixedly mounted on both sides of the driving plate 303. The arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 are rotatably mounted on the bottom of the corresponding connecting plate 701 through a rotating mechanism. The chest fixing mechanism 4 includes a U-shaped seat 40 1. U-shaped rod 402, rotating shaft 403, fixing belt 404 and fixing frame 405. The U-shaped seat 401 is fixedly installed on the bottom of the support plate 103. A plurality of U-shaped rods 402 are fixedly installed on the rear side of the U-shaped seat 401. Rotating shafts 403 are rotatably installed on the inner walls of both sides of the U-shaped rod 402. A fixing belt 404 is fixedly sleeved on the rotating shaft 403. A plurality of fixing frames 405 are fixedly installed on the front side of the U-shaped seat 401, and the fixing belt 404 is adapted to the corresponding fixing frame 405. The arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 are provided to fix the patient's legs.

[0041] In this embodiment, a plurality of positioning grooves 501 are provided on the top of the support plate 103, a plurality of positioning seats 502 are fixedly installed on the bottom of the mounting plate 104, and the positioning seats 502 are adapted to the corresponding positioning grooves 501, a fixing groove 507 is provided on one side of the positioning seat 502, and movable grooves 503 are provided on both sides of the support plate 103, a plurality of movable holes 506 are provided on the inner wall of one side of the movable groove 503, and the movable holes 506 are communicated with the corresponding positioning grooves 501, a plurality of fixing seats 505 are fixedly installed on one side of the movable plate 504, and the fixing seats 505 are adapted to the corresponding fixing grooves 507, and the purpose of positioning the mounting plate 104 can be achieved by providing the positioning seats 502 and the positioning grooves 501.

[0042] In this embodiment, a sealing plate is fixedly installed in the movable groove 503, and a threaded hole 601 is opened on the sealing plate. A driving screw 602 is threadedly installed in the threaded hole 601. One end of the driving screw 602 is rotatably installed on the movable plate 504, and the other end of the driving screw 602 extends to the outside of the support plate 103 and is fixedly installed with a rotating plate 603. By providing the driving screw 602, the driving screw 602 can be brought to the movable plate 504 for the purpose of moving.

[0043] In this embodiment, two connecting plates 701 are fixedly installed on the front and rear sides of the support plate 103, and the same rectangular rod 702 is fixedly installed between the two connecting plates 701. A rectangular hole 703 is opened on the sliding seat 301, and the sliding seat 301 is slidably mounted on the corresponding rectangular rod 702 through the rectangular hole 703. A plurality of slots 704 are opened at equal intervals at the bottom of the rectangular rod 702, and a threaded hole 705 is opened on the inner wall of the bottom of the rectangular hole 703. A fixing bolt 706 is installed in the inner thread of the threaded hole 705, and the fixing bolt 706 is adapted to the corresponding slot 704. By providing the fixing bolt 706 and the slot 704, the purpose of fixing the sliding seat 301 can be achieved.

[0044] In this embodiment, the same threaded rod 31 is rotatably installed on the top and bottom inner walls of the driving hole 302, the top end of the threaded rod 31 extends to the top of the sliding seat 301 and is fixedly installed with a handwheel 32, and the driving plate 303 is threadedly sleeved on the corresponding threaded rod 31. By providing the threaded rod 31, the rotation of the threaded rod 31 can achieve the purpose of stable movement of the driving plate 303 in the vertical direction.

[0045] In this embodiment, the rotating mechanism includes a vertical plate 801, a rotating shaft 802 and a rotating seat 803. Two vertical plates 801 are fixedly installed at the bottom of the horizontal plate 304. The same rotating shaft 802 is rotatably installed between the two vertical plates 801. The rotating seat 803 is fixedly installed on the rotating shaft 802. The arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 are fixedly connected to the corresponding rotating seats 803. By providing the rotating shaft 802 and the rotating seat 803, the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 can be rotatably installed on the bottom of the horizontal plate 304, so that the purpose of adjusting the angles of the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 as needed can be achieved.

[0046] In this embodiment, a worm gear 901 is fixedly mounted on the rotating shaft 802, and a driving shaft 902 is rotatably mounted on the horizontal plate 304. A worm 903 meshing with the worm gear 901 is fixedly mounted on the bottom end of the driving shaft 902, and the top end of the driving shaft 902 extends to the top of the horizontal plate 304 and is fixedly mounted with a knob 904. By providing the worm gear 903 and the worm gear 901, the rotation of the driving shaft 902 can cause the rotating shaft 802 and the rotating seat 803 to rotate, thereby achieving the purpose of rotating the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306.

[0047] In this embodiment, a clamping plate 41 for clamping the fixing belt 404 is slidably installed on the inner walls on both sides of the fixing frame 405, a threaded hole three 42 is provided on the inner wall on the front side of the fixing frame 405, and a fixing screw 43 is installed with the inner thread of the threaded hole three 42, one end of the fixing screw 43 is rotatably installed on the clamping plate 41, and the other end of the fixing screw 43 extends to the outside of the fixing frame 405 and is fixedly installed with a handle 44. By providing the fixing screw 43, the movement of the fixing screw 43 can drive the clamping plate 41 to move, and the fixing belt 404 can be fixed by the clamping plate 41. A limiting hole is provided on the inner wall on the front side of the fixing frame 405, and a limiting rod 45 is slidably installed in the limiting hole, and one end of the limiting rod 45 is fixedly installed on the corresponding clamping plate 41. By providing the limiting hole and the limiting rod 45, the clamping plate 41 can be guided, thereby achieving the purpose of stable movement of the clamping plate 41.

[0048] The working principle of the present invention is as follows: by providing an ergonomic pad 105, when the patient lies in the human body groove 106 on the ergonomic pad 105, the ergonomic design can avoid the discomfort or pain that may be caused to the patient due to long-term treatment. By rotating the rotating plate 603 and the driving screw 602, under the action of the threaded hole 601, the driving screw 602 can be moved while rotating, and the driving screw 602 can lead the moving plate 504 and the fixing seat 505 to move, so that the fixing seat 505 can be inserted into or separated from the corresponding fixing groove 507, and the positioning seat 502 can be fixed and released, so that it is convenient to install the mounting plate 104 and the ergonomic pad 1 05 can be disassembled and assembled, so that the ergonomic pad 105 can be replaced for different groups of people. When the patient lies on the ergonomic pad 105, the patient's head can be placed in the fixed headrest 201, and the patient's head can be reinforced by the restraint belt 1 202. The patient's soles are placed on one side of the sole fixing plate 203, and the patient's soles can be fixed by the restraint belt 204. By rotating the hand wheel 32 and the threaded rod 31, the rotation of the threaded rod 31 can lead the driving plate 303 to move downward, and the driving plate 303 can be led to the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 through the cross plate 304, so as to achieve the purpose of fixing the patient's legs;

[0049] The fixing belt 404 in different positions is selected according to the needs, and the fixing belt 404 is wound around the patient's chest and passed through the corresponding fixing frame 405. The patient's chest can be fixed by tightening the fixing belt 404, and then the handle 44 and the fixing screw 43 are rotated, and the fixing screw 43 can be moved while rotating under the action of the threaded hole 42, and the fixing screw 43 can be brought to the clamping plate 41 to move, and the clamping plate 41 can press the fixing belt 404, so that the chest of different patients can be fixed according to the needs, and the fixing bolt 706 can be rotated and moved under the action of the threaded hole 705 by rotating the fixing bolt 706, and the movement of the fixing bolt 706 can be inserted into or out of the corresponding slot 704, so that the sliding seat 301 can be fixed and released. 1. The sliding seat 301 can move the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 in the horizontal direction, so as to achieve the purpose of adjusting the positions of the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 as needed. By rotating the knob 904, the knob 904 can drive the driving shaft 902 to rotate, and the rotation of the driving shaft 902 can drive the worm 903 to rotate, and the worm 903 can drive the worm gear 901 to rotate, and the rotation of the worm gear 901 can drive the rotating gear to rotate, and the rotating gear can drive the rotating shaft 802 to rotate. The rotating shaft 802 can drive the corresponding arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 to rotate through the rotating seat 803, so as to achieve the purpose of adjusting the angles of the arc-shaped calf fixing plate 305 and the arc-shaped thigh fixing plate 306 as needed.

[0050] The above is a detailed introduction to a whole body radiotherapy fixation device provided by the present invention. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A whole body radiotherapy fixation device, characterized in that: The invention comprises a base (101), a support box (102) is fixedly mounted on the top of the base (101), a support plate (103) is mounted on the top of the support box (102), a mounting plate (104) is mounted on the top of the support plate (103) via a detachable structure, an ergonomic pad (105) is fixedly mounted on the top of the mounting plate (104), a human body groove (106) adapted to the human body is provided on the top of the ergonomic pad (105), and a leg fixing mechanism (3) and a chest fixing mechanism (4) are provided on the support plate (103); A fixed headrest (201) is fixedly installed on one side of the top of the ergonomic pad (105), a first restraint belt (202) for fixing the head is provided on the top of the fixed headrest (201), two sole fixing plates (203) are fixedly installed on one side of the ergonomic pad (105), and a second restraint belt (204) for fixing the sole of the foot is installed on one side of the sole fixing plate (203); The leg fixing mechanism (3) comprises a sliding seat 301, a driving hole (302), a driving plate (303), a connecting plate (701), an arc-shaped calf fixing plate (305) and an arc-shaped thigh fixing plate (306); the front side and the rear side of the support plate (103) are both slidably mounted with the sliding seat (301); the front side of the sliding seat (301) is provided with a driving hole (302); the driving plate (303) is slidably mounted in the driving hole (302); the connecting plates (701) are fixedly mounted on both sides of the driving plate (303); the arc-shaped calf fixing plate (305) and the arc-shaped thigh fixing plate (306) are rotatably mounted on the bottom of the corresponding connecting plate (701) through a rotating mechanism; The chest fixing mechanism (4) comprises a U-shaped seat (401), a U-shaped rod (402), a rotating shaft (403), a fixing belt (404) and a fixing frame (405); the U-shaped seat (401) is fixedly mounted on the bottom of the support plate (103); a plurality of U-shaped rods (402) are fixedly mounted on the rear side of the U-shaped seat (401); a rotating shaft (403) is rotatably mounted on the inner walls of both sides of the U-shaped rod (402); a fixing belt (404) is fixedly sleeved on the rotating shaft (403); a plurality of fixing frames (405) are fixedly mounted on the front side of the U-shaped seat (401); and the fixing belts (404) are matched with corresponding fixing frames (405).

2. A whole body radiotherapy fixation device according to claim 1, characterized in that: The top of the support plate (103) is provided with a plurality of positioning grooves (501); the bottom of the mounting plate (104) is fixedly provided with a plurality of positioning seats (502), and the positioning seats (502) are adapted to the corresponding positioning grooves (501); a fixed groove (507) is provided on one side of the positioning seat (502); both sides of the support plate (103) are provided with movable grooves (503); a plurality of movable holes (506) are provided on the inner wall of one side of the movable groove (503), and the movable holes (506) are communicated with the corresponding positioning grooves (501); a plurality of fixed seats (505) are fixedly provided on one side of the movable plate (504), and the fixed seats (505) are adapted to the corresponding fixing grooves (507).

3. A whole body radiotherapy fixation device according to claim 2, characterized in that: A sealing plate is fixedly installed in the movable groove (503), and a threaded hole (601) is opened on the sealing plate. A driving screw (602) is threadedly installed in the threaded hole (601). One end of the driving screw (602) is rotatably installed on the movable plate (504), and the other end of the driving screw (602) extends to the outside of the support plate (103) and is fixedly installed with a rotating plate (603).

4. A whole body radiotherapy fixation device according to claim 1, characterized in that: Two connecting plates (701) are fixedly installed on the front and rear sides of the support plate (103), and a same rectangular rod (702) is fixedly installed between the two connecting plates (701). A rectangular hole (703) is opened on the sliding seat 301, and the sliding seat (301) is slidably mounted on the corresponding rectangular rod (702) through the rectangular hole (703).

5. A whole body radiotherapy fixation device according to claim 4, characterized in that: The bottom of the rectangular rod (702) is provided with a plurality of slots (704) at equal intervals, the bottom inner wall of the rectangular hole (703) is provided with a second threaded hole (705), the inner thread of the second threaded hole (705) is provided with a fixing bolt (706), and the fixing bolt (706) is matched with the corresponding slot (704).

6. A whole body radiotherapy fixation device according to claim 1, characterized in that: The same threaded rod (31) is rotatably mounted on the top and bottom inner walls of the driving hole (302), the top end of the threaded rod (31) extends to the top of the sliding seat (301) and is fixedly mounted with a hand wheel (32), and the driving plate (303) is threadedly sleeved on the corresponding threaded rod (31).

7. A whole body radiotherapy fixation device according to claim 1, characterized in that: The rotating mechanism comprises a vertical plate (801), a rotating shaft (802) and a rotating seat (803); two vertical plates (801) are fixedly mounted at the bottom of the horizontal plate (304); a same rotating shaft (802) is rotatably mounted between the two vertical plates (801); a rotating seat (803) is fixedly mounted on the rotating shaft (802); and an arc-shaped calf fixing plate (305) and an arc-shaped thigh fixing plate (306) are fixedly connected to the corresponding rotating seats (803).

8. A whole body radiotherapy fixation device according to claim 7, characterized in that: A worm wheel (901) is fixedly mounted on the rotating shaft (802), a driving shaft (902) is rotatably mounted on the transverse plate (304), a worm (903) meshing with the worm wheel (901) is fixedly mounted on the bottom end of the driving shaft (902), and a knob (904) is fixedly mounted on the top end of the driving shaft (902) extending above the transverse plate (304).

9. The whole body radiotherapy fixation device according to claim 1, characterized in that: A clamping plate (41) for clamping the fixing belt (404) is slidably mounted on the inner walls on both sides of the fixing frame (405), a threaded hole three (42) is opened on the inner wall on the front side of the fixing frame (405), a fixing screw (43) is installed with an internal thread of the threaded hole three (42), one end of the fixing screw (43) is rotatably mounted on the clamping plate (41), and the other end of the fixing screw (43) extends to the outside of the fixing frame (405) and is fixedly mounted with a handle (44).

10. A whole body radiotherapy fixation device according to claim 9, characterized in that: A limiting hole is provided on the front inner wall of the fixing frame (405), a limiting rod (45) is slidably installed in the limiting hole, and one end of the limiting rod (45) is fixedly installed on the corresponding clamping plate (41).

Images