Head and neck protection device for tumor radiotherapy

Abstract

The invention belongs to the technical field of medical equipment, and discloses a head and neck protection device for tumor radiotherapy, and the device comprises a bottom plate, and also comprises a moving assembly which is movably connected to the top of the bottom plate; the rotating assembly is movably connected to the interior of the bottom plate; and the head protection assembly is movably connected to the interior of the moving assembly. Through cooperation of a first bevel gear, clamping blocks, a soft cushion and other structures, the limiting effect on the head of a patient is improved, then the protection effect on the head and the neck is improved, through cooperation of a second gear, a first tooth plate and a second tooth plate, the two clamping blocks are driven to move in the opposite directions, the soft cushion is made of a soft silica gel material, and the protection effect on the head and the neck is improved. Therefore, the soft cushion can be conveniently attached to different contours of the head of the patient, the limiting effect of the head protection assembly on the head of the patient is improved, the probability that rays irradiate normal tissue is reduced, and the protection effect on the head and the neck is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and specifically relates to a head and neck protection device for tumor radiotherapy. Background Technique

[0002] Tumor radiotherapy is a medical method that uses high-energy radiation (such as X-rays, γ-rays, or particle radiation) to treat cancer. The main purpose of radiotherapy is to directly kill cancer cells or inhibit their growth while protecting the surrounding healthy tissues as much as possible. During tumor radiotherapy, the protection of the head and neck is also crucial.

[0003] Existing protection devices for tumor radiotherapy generally obtain accurate facial and neck contour data by performing three-dimensional scans on the patient's head and neck, and then produce a protective mask that highly conforms to the shape of the patient's head and neck. However, the three-dimensional scanning equipment of this technology is expensive and the cost is high. Therefore, during radiotherapy in small medical institutions, the patient's head and neck are generally only limited and protected by a head and neck pillow and a fixing strap. However, the position of the existing head and neck pillow is generally fixed, so it cannot be adjusted according to the patient's height. At the same time, this method is cumbersome to fix and the fixing effect is poor. After the patient's head is tied by the fixing strap, it may still swing left and right. Therefore, the accuracy of radiotherapy cannot be improved, and the protective effect on the patient's head and neck is poor. Therefore, a head and neck protection device for tumor radiotherapy is proposed to solve the problems raised in the background technique. Summary of the Invention

[0004] To solve the problems raised in the above background technique, the present invention provides a head and neck protection device for tumor radiotherapy, which has the advantages of improving the limiting effect on the patient's head and thus enhancing the protective effect on the head and neck.

[0005] To achieve the above object, the present invention provides the following technical solution: A head and neck protection device for tumor radiotherapy, including a bottom plate, and further including:

[0006] A moving component, the moving component is movably connected to the top of the bottom plate;

[0007] A rotating component, the rotating component is movably connected to the inside of the bottom plate; and a clamping component that moves inside the bottom plate is meshed and connected to the middle of the rotating component;

[0008] A head protection component, the head protection component is movably connected to the inside of the moving component;

[0009] A shoulder and neck protection component, the shoulder and neck protection component is movably connected inside the moving component, and a neck soft pillow is fixedly connected to the top of the shoulder and neck protection component;

[0010] The moving component includes a support plate and a head and neck pillow fixedly connected to the top of the support plate. The rotating component includes a rotating rod, and a first gear and a first bevel gear are fixedly connected to the surface of the rotating rod. One side of the bottom plate is threadedly connected with a threaded rod;

[0011] The head protection component includes a second bevel gear meshed with the first bevel gear. A first toothed plate and a second toothed plate are movably connected inside the moving component, and clamping blocks are fixedly connected to the tops of both of them;

[0012] The clamping component includes a third toothed plate and a fourth toothed plate, and two toothed blocks are movably connected to one end of each of the third toothed plate and the fourth toothed plate.

[0013] Preferably, moving blocks are fixedly connected to both ends of the bottom of the support plate. Limit blocks are movably clamped at both ends of the rotating rod, and the top ends of the limit blocks are fixedly connected to the support plate. Handles are provided on both sides of the support plate close to the moving blocks.

[0014] Preferably, a rotating cylinder is movably clamped inside the bottom plate. One end of the rotating cylinder away from the threaded rod is movably connected inside the rotating rod. A cross groove for circumferentially limiting the rotating cylinder is provided on the inner wall of the rotating rod. A square plate that moves inside the rotating cylinder is provided at one end of the threaded rod.

[0015] Preferably, a second gear is fixedly connected to the top end of the second bevel gear. The first toothed plate and the second toothed plate are both meshed with the second gear. Soft pads are fixedly connected to the opposite sides of the two clamping blocks, and the soft pads are made of soft silicone material.

[0016] Preferably, the upper and lower sides of the first gear are respectively meshed with the third toothed plate and the fourth toothed plate. Springs are fixedly connected to both ends of the toothed block. The ends of the two groups of springs away from the toothed block are respectively fixedly connected to the third toothed plate and the fourth toothed plate. Fifth toothed plates are fixedly connected to both sides of the inner wall of the bottom plate.

[0017] Preferably, the third toothed plate and the fourth toothed plate are Z-shaped. Opposite ends of the third toothed plate and the fourth toothed plate are movably connected inside the moving block. Blocks are fixedly connected to opposite ends of the third toothed plate and the fourth toothed plate. After the opposite ends of the third toothed plate and the fourth toothed plate move in opposite directions, the blocks are driven to be clamped with the fifth toothed plate.

[0018] Preferably, two fixing blocks are symmetrically and fixedly connected to the top of the moving component. The shoulder and neck protection component includes a trapezoidal block. A first elastic sheet fixedly connected to the support plate is fixedly connected to the bottom of the trapezoidal block. The first elastic sheet is used to squeeze the trapezoidal block and keep the trapezoidal block in a trend of moving upward. First inclined blocks located on both sides of the trapezoidal block are movably connected inside the moving component.

[0019] Preferably, one end of each of the two first inclined blocks facing each other is bevel-shaped. Both ends of the bottom of the trapezoidal block are respectively abutted against the bevel surfaces of the two first inclined blocks. A convex rod is fixedly connected to the top end of the first inclined block. The first inclined block penetrates through the outer wall of the moving assembly and extends into the fixed block.

[0020] Preferably, a second elastic sheet fixed to the fixed block is fixedly connected to each of the two opposite sides of the first inclined block. A pressing block is movably connected inside the fixed block. A buckle is provided on each of the two opposite sides of the pressing block. The buckle is located outside the fixed block.

[0021] Preferably, a second inclined block is movably connected inside one end of the pressing block. One end of the second inclined block is bevel-shaped. A third elastic sheet is fixedly connected to each of the two opposite ends of the second inclined block. The second inclined block is elastically connected to the pressing block through the third elastic sheet. A square groove for cooperating with the second inclined block is formed at the top end of the inner wall of the fixed block.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] Through the cooperation among structures such as the first bevel gear, the clamping block, and the soft pad, the present invention improves the limiting effect on the patient's head, and further improves the protection effect on the head and neck. When the first bevel gear rotates, it drives the second bevel gear and the second gear thereon to rotate. Then, through the cooperation between the second gear and the first tooth plate and the second tooth plate, the two clamping blocks are driven to move towards each other. Since the soft pad is made of soft silicone material, it is convenient for the soft pad to fit the different arcs and contours of the patient's head, thereby improving the limiting effect of the head protection component on the patient's head, reducing the probability of the ray irradiating the normal tissue, and further improving the protection effect on the head and neck.

[0024] Through the cooperation among structures such as the rotating assembly, the tooth block, and the fifth tooth plate, the present invention facilitates the fixation of the position after the head and neck are adjusted, and further improves the practicability and convenience of the device as a whole. When the first gear rotates, it drives the third tooth plate and the fourth tooth plate to move in opposite directions, so that the clamping blocks on them are inserted into the inside of the fifth tooth plate, thereby fixing the positions of the third tooth plate and the fourth tooth plate. Through the design of the spring, the tooth block is reset during the rotation gap of the first gear, so that the third tooth plate and the fourth tooth plate remain stationary after being clamped. Since the third tooth plate and the fourth tooth plate are respectively movably arranged inside the two moving blocks, the moving blocks are limited, and thus the support plate at the top end of the moving block is fixed, thereby improving the convenience and practicability of the device as a whole.

[0025] Through the cooperation among structures such as a neck soft pillow, a first inclined block, and a pressing block, the present invention facilitates the limitation of a patient's shoulders, thereby improving the overall accuracy and safety of radiotherapy. When the trapezoidal block abuts against the inclined surfaces of the two first inclined blocks, after the patient's neck squeezes the neck soft pillow and the trapezoidal block to move downward, the two first inclined blocks will move in opposite directions, and then squeeze the second inclined block to contract into the pressing block, causing the pressing block to release the clamping connection with the fixed block. Since an arc-shaped block is provided at one end of the pressing block, it is convenient for the arc-shaped block to move downward and abut against and fit with the patient's shoulders after moving downward, thereby limiting the shoulders and preventing the patient's shoulders from moving randomly, and further improving the overall accuracy and safety of radiotherapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic diagram of the front sectional structure of the present invention;

[0028] Figure 3 is a schematic diagram of the positional relationship among the moving component, the rotating component, and the head protection component;

[0029] Figure 4 is an exploded view of the head protection component of the present invention;

[0030] Figure 5 is an exploded view of the clamping component of the present invention;

[0031] Figure 6 is a schematic diagram of the top sectional structure of the present invention;

[0032] Figure 7 is a schematic diagram of the side sectional structure of the shoulder and neck protection component of the present invention;

[0033] Figure 8 is Figure 7 an enlarged view of part A in

[0034] Figure 9 is an exploded view of the shoulder and neck protection component of the present invention.

[0035] In the figure: 1, bottom plate; 2, moving component; 21, support plate; 22, head and neck pillow; 23, moving block; 24, limiting block; 3, rotating component; 31, rotating rod; 32, first gear; 33, first bevel gear; 34, rotating cylinder; 35, threaded rod; 4, head protection component; 41, second bevel gear; 42, second gear; 43, first toothed plate; 44, second toothed plate; 45, clamping block; 46, soft pad; 5, clamping component; 51, third toothed plate; 52, fourth toothed plate; 53, toothed block; 54, spring; 55, fifth toothed plate; 6, shoulder and neck protection component; 61, trapezoidal block; 62, first elastic sheet; 63, first inclined block; 64, second elastic sheet; 65, pressing block; 66, second inclined block; 67, buckle; 68, third elastic sheet; 7, neck soft pillow; 8, fixed block. Detailed implementation manner

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 9 shown, the present invention provides a head and neck protection device for tumor radiotherapy, including a bottom plate 1, and further including:

[0038] A moving component 2, the moving component 2 is movably connected to the top of the bottom plate 1;

[0039] A rotating component 3, the rotating component 3 is movably connected to the inside of the bottom plate 1; and a clamping component 5 that is movably connected inside the bottom plate 1 is meshed and connected to the middle of the rotating component 3;

[0040] A head protection component 4, the head protection component 4 is movably connected to the inside of the moving component 2;

[0041] A shoulder and neck protection component 6, the shoulder and neck protection component 6 is movably connected inside the moving component 2, and a neck soft pillow 7 is fixedly connected to the top of the shoulder and neck protection component 6;

[0042] The moving component 2 includes a support plate 21 and a head and neck pillow 22 fixedly connected to the top of the support plate 21. The rotating component 3 includes a rotating rod 31, and a first gear 32 and a first bevel gear 33 are fixedly connected to the surface of the rotating rod 31. One side of the bottom plate 1 is threadedly connected with a threaded rod 35;

[0043] The head protection component 4 includes a second bevel gear 41 meshed and connected to the first bevel gear 33. A first toothed plate 43 and a second toothed plate 44 are movably connected inside the moving component 2, and clamping blocks 45 are fixedly connected to the tops of both;

[0044] The snap - fit component 5 includes a third toothed plate 51 and a fourth toothed plate 52. Two toothed blocks 53 are movably connected to one end of each of the third toothed plate 51 and the fourth toothed plate 52.

[0045] Adopting the above - mentioned solution: By meshing the second bevel gear 41 with the first bevel gear 33, when the rotating rod 31 drives the first bevel gear 33 to rotate, the second bevel gear 41 will rotate. When the first toothed plate 43 and the second toothed plate 44 move in opposite directions, they drive the clamping block 45 in the same direction. Furthermore, after the clamping block 45 moves, it limits the head of the patient, thereby preventing the patient's head from moving randomly during radiotherapy, causing the radiation to irradiate normal tissues, and thus improving the accuracy of radiotherapy. At the same time, the protective effect on the patient's head and neck is enhanced.

[0046] As Figures 1 to 3 、 Figures 5 to 6 shown, two ends of the bottom of the support plate 21 are fixedly connected with moving blocks 23. Two ends of the rotating rod 31 are movably snap - fitted with limit blocks 24. The top of the limit block 24 is fixedly connected with the support plate 21. Handles are arranged on both sides of the support plate 21 close to the moving blocks 23. A rotating cylinder 34 is movably snap - fitted inside the bottom plate 1. One end of the rotating cylinder 34 away from the threaded rod 35 is movably connected inside the rotating rod 31. A cross - groove for circumferentially limiting the rotating cylinder 34 is provided on the inner wall of the rotating rod 31. One end of the threaded rod 35 is provided with a square plate that moves inside the rotating cylinder 34.

[0047] Adopting the above - mentioned solution: By providing a cross - groove on the inner wall of the rotating rod 31, when the rotating rod 31 moves, the rotating cylinder 34 slides inside the rotating rod 31 under different conditions. And when the threaded rod 35 rotates, it can also circumferentially limit the rotating cylinder 34 through the cross - groove, so that the rotating cylinder 34 drives the rotating rod 31 to rotate together. By providing a square plate at one end of the threaded rod 35, the threaded rod 35 can drive the rotating cylinder 34 to rotate and slide inside the rotating cylinder 34 at the same time, thereby ensuring the normal operation of the device.

[0048] As Figures 3 to 6As shown in the figure, a second gear 42 is fixedly connected to the top end of the second bevel gear 41. Both the first tooth plate 43 and the second tooth plate 44 are meshed and connected to the second gear 42. Soft pads 46 are fixedly connected to the opposite sides of the two clamping blocks 45. The soft pads 46 are made of soft silicone material. The upper and lower sides of the first gear 32 are respectively meshed and connected to the third tooth plate 51 and the fourth tooth plate 52. Springs 54 are fixedly connected to both ends of the tooth block 53. The ends of the two groups of springs 54 away from the tooth block 53 are respectively fixedly connected to the third tooth plate 51 and the fourth tooth plate 52. Both sides of the inner wall of the bottom plate 1 are fixedly connected with fifth tooth plates 55. The third tooth plate 51 and the fourth tooth plate 52 are in a Z shape. The opposite ends of the third tooth plate 51 and the fourth tooth plate 52 are movably connected inside the moving block 23. Clamping blocks are fixedly connected to the opposite ends of the third tooth plate 51 and the fourth tooth plate 52. After the opposite ends of the third tooth plate 51 and the fourth tooth plate 52 move in the opposite direction, they drive the clamping blocks to be clamped with the fifth tooth plate 55.

[0049] Adopting the above scheme: Since the soft pad 46 is made of soft rubber material, its function is that due to the soft texture and good flexibility of the soft silicone, when the soft pad 46 clamps the head, it can naturally fit according to the shape of the patient's head, so as to adapt to the irregularities of the patient's head, such as in the ear, back of the head and other parts. Furthermore, it can closely fit the head without causing discomfort. And the elasticity of the soft silicone can disperse the clamping force. When the head is clamped, the soft silicone will deform to a certain extent, so as to evenly disperse the pressure applied to the head, thus preventing excessive local pressure and reducing the risk of pressure damage to parts such as the scalp and skull.

[0050] As Figures 7 to 9 As shown in the figure, two fixing blocks 8 are symmetrically and fixedly connected to the top of the moving component 2. The shoulder and neck protection component 6 includes a trapezoidal block 61. A first elastic sheet 62 fixedly connected to the support plate 21 is fixedly connected to the bottom of the trapezoidal block 61. The first elastic sheet 62 is used to squeeze the trapezoidal block 61 and make the trapezoidal block 61 keep a tendency to move upward. First inclined blocks 63 located on both sides of the trapezoidal block 61 are movably connected inside the moving component 2. The opposite ends of the two first inclined blocks 63 are both in a slope shape. The two ends of the bottom of the trapezoidal block 61 are respectively abutted against the slope parts of the two first inclined blocks 63. A convex rod is fixedly connected to the top end of the first inclined block 63. The first inclined block 63 penetrates through the outer wall of the moving component 2 and extends into the inside of the fixing block 8.

[0051] Adopting the above scheme: Through the design of the first elastic sheet 62, its function is that when the radiotherapy of the patient is completed, at this time the patient gets up and releases the extrusion on the neck soft pillow 7. Then, the trapezoidal block 61 will drive the neck soft pillow 7 to reset under the action of the elastic force of the first elastic sheet 62, thus facilitating the next use of the device.

[0052] As Figures 7 to 9As shown in the figure, on opposite sides of the two first inclined blocks 63, there are fixedly connected second elastic pieces 64 fixed to the fixed block 8. Inside the fixed block 8, there is a movable connection with a pressing block 65. On opposite sides of the two pressing blocks 65, there are buckles 67 located outside the fixed block 8. Inside one end of the pressing block 65, there is a movable connection with a second inclined block 66. One end of the second inclined block 66 is bevel-shaped. On opposite ends of the two second inclined blocks 66, there are fixedly connected third elastic pieces 68. The second inclined block 66 is elastically connected to the pressing block 65 through the third elastic piece 68. At the top of the inner wall of the fixed block 8, there is a square groove for cooperating with the second inclined block 66.

[0053] Adopting the above solution: Through the design of the second elastic piece 64, its function is that when the trapezoidal block 61 resets, the extrusion on the two first inclined blocks 63 will be released, so that the first inclined blocks 63 reset under the action of the elastic force of the second elastic pieces 64. Subsequently, the operator rotates the buckle 67 to release the fixation of the pressing block 65, and then it is convenient to pull the pressing block 65 upward. When the pressing block 65 drives the second inclined block 66 to move to the square groove, the second inclined block 66 will reset under the action of the elastic force of the third elastic piece 68, and then re-fix the position of the pressing block 65, which is convenient for the next patient to use.

[0054] The buckle 67 is a common bicycle buckle locking mechanism. By flipping the buckle 67, the locking and loosening of the position of the pressing block 65 can be achieved, which belongs to the prior art. When the buckle 67 is flipped upward and the pressing block 65 is locked, the pressing block 65 can limit the shoulder of the patient.

[0055] The working principle and usage process of the present invention: The patient lies on the bottom plate 1. Subsequently, the medical staff adjusts the position of the moving component 2 according to the patient's height. By pulling the handle on the side of the support plate 21, the support plate 21 drives the moving block 23 and the limiting block 24 at its bottom to move in the same direction. Then, through the movable connection between the limiting block 24 and the rotating rod 31, the rotating rod 31 drives the first gear 32 and the first bevel gear 33 to move together. While the rotating rod 31 is moving, one end of the rotating cylinder 34 slides inside the rotating rod 31. When the positions of the head and neck pillow 22 and the neck soft pillow 7 are adjusted, at this time, the patient's head is located above the head and neck pillow 22.

[0056] Subsequently, the operator rotates the threaded rod 35, thereby driving the rotating rod 31 to rotate through the rotating cylinder 34. Further, the first gear 32 and the first bevel gear 33 fixedly connected to the rotating rod 31 rotate. While the first gear 32 rotates, it drives the third tooth plate 51 and the fourth tooth plate 52 to move in opposite directions. When the first gear 32 contacts the tooth block 53 at the opposite end of both, it will squeeze the tooth block 53 to move in the direction of the spring 54. At this time, the clamping blocks at one end of the third tooth plate 51 and the fourth tooth plate 52 are respectively inserted into the interiors of the two fifth tooth plates 55, thereby fixing the positions of the third tooth plate 51 and the fourth tooth plate 52. Further, the moving blocks 23 outside the two and the support plates 21 at their tops are fixed. Subsequently, the rotating rod 31 continues to rotate, causing the tooth block 53 to reset under the action of the elastic force of the spring 54 in the gap of the rotation of the first gear 32. Repeating this operation, when the first gear 32 continues to rotate, the third tooth plate 51 and the fourth tooth plate 52 remain stationary;

[0057] While the first bevel gear 33 rotates, it drives the second bevel gear 41 and the second gear 42 at its top to rotate, and through the meshing connection of the second gear 42 with the first tooth plate 43 and the second tooth plate 44 respectively, the first tooth plate 43 and the second tooth plate 44 respectively drive the two clamping blocks 45 to move towards each other. While the clamping blocks 45 move, they drive the soft pads 46 to move in the same direction until the soft pads 46 abut against the patient's head, thereby limiting the position of the patient's head. Further, it prevents the patient's head from moving randomly during radiotherapy, resulting in the radiation irradiating the normal tissues of the head and neck, thereby improving the protection effect on the head and neck during radiotherapy. Further, it improves the overall accuracy and safety of radiotherapy;

[0058] While the patient lies flat on the bottom plate 1, their neck will contact the neck soft pillow 7, thereby squeezing the neck soft pillow 7 to drive the trapezoidal block 61 to move downward. While the trapezoidal block 61 moves downward, it will squeeze the two first inclined blocks 63 to move in opposite directions, thereby driving the convex rod at the top of the first inclined block 63 to abut against the inclined surface of the second inclined block 66 and squeezing the second inclined block 66 to contract into the inside of the pressing block 65. Further, the pressing block 65 is disengaged from the clamping connection with the fixed block 8. Subsequently, the pressing block 65 drives the arc-shaped block to move downward under the action of its own gravity, thereby making the arc-shaped block abut against the patient's shoulder. At this time, the medical staff fixes the position of the pressing block 65 by rotating the buckle 67. Further, the arc-shaped block on the pressing block 65 limits the position of the patient's shoulder, thereby improving the overall accuracy of radiotherapy.

[0059] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0060] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head and neck protection device for tumor radiotherapy, comprising a base plate (1), characterized in that: Also includes: A moving component (2), the moving component (2) being movably connected to the top of the base plate (1); A rotating assembly (3), the rotating assembly (3) being movably connected to the interior of the base plate (1); and a middle portion of the rotating assembly (3) being meshedly connected to a clamping assembly (5) movably located within the base plate (1); A head protection component (4), wherein the head protection component (4) is movably connected to the interior of the moving component (2); A shoulder and neck protection component (6), wherein the shoulder and neck protection component (6) is movably connected in the moving component (2), and a soft neck pillow (7) is fixedly connected to the top of the shoulder and neck protection component (6); The moving assembly (2) comprises a support plate (21) and a head and neck pillow (22) fixedly connected to the top of the support plate (21); the rotating assembly (3) comprises a rotating rod (31); a first gear (32) and a first bevel gear (33) are fixedly connected to the surface of the rotating rod (31); and a threaded rod (35) is threadedly connected to one side of the bottom plate (1); The head protection component (4) includes a second bevel gear (41) meshingly connected with the first bevel gear (33); the moving component (2) is internally movably connected with a first tooth plate (43) and a second tooth plate (44), and the top ends of both are fixedly connected with a clamping block (45); The clamping assembly (5) comprises a third tooth plate (51) and a fourth tooth plate (52), and one end of each of the third tooth plate (51) and the fourth tooth plate (52) is movably connected to two tooth blocks (53).

2. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: Both ends of the bottom of the support plate (21) are fixedly connected to a moving block (23), both ends of the rotating rod (31) are movably connected to a limit block (24), the top end of the limit block (24) is fixedly connected to the support plate (21), and handles are provided on both sides of the support plate (21) close to the moving block (23).

3. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: A rotating cylinder (34) is movably clamped inside the bottom plate (1); one end of the rotating cylinder (34) away from the threaded rod (35) is movably connected to the inside of the rotating rod (31); a cross groove for circumferentially limiting the rotating cylinder (34) is provided on the inner wall of the rotating rod (31); and a square plate movably inside the rotating cylinder (34) is provided at one end of the threaded rod (35).

4. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The top end of the second bevel gear (41) is fixedly connected to the second gear (42), the first tooth plate (43) and the second tooth plate (44) are both meshingly connected to the second gear (42), and the opposite sides of the two clamping blocks (45) are fixedly connected to soft pads (46), and the soft pads (46) are made of soft silicone material.

5. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The upper and lower sides of the first gear (32) are respectively meshed with the third tooth plate (51) and the fourth tooth plate (52); both ends of the tooth block (53) are fixedly connected with springs (54); one end of the two groups of springs (54) away from the tooth block (53) is respectively fixedly connected with the third tooth plate (51) and the fourth tooth plate (52); and both sides of the inner wall of the bottom plate (1) are fixedly connected with fifth tooth plates (55).

6. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The third tooth plate (51) and the fourth tooth plate (52) are in a Z shape, and opposite ends of the third tooth plate (51) and the fourth tooth plate (52) are movably connected to the inside of the moving block (23), and opposite ends of the third tooth plate (51) and the fourth tooth plate (52) are fixedly connected with a clamping block, and the third tooth plate (51) and the fourth tooth plate (52) move in opposite directions to drive the clamping block to clamp with the fifth tooth plate (55).

7. The head and neck protection device for tumor radiotherapy according to claim 1, characterized in that: The top of the movable component (2) is symmetrically fixedly connected with two fixed blocks (8), the shoulder and neck protection component (6) includes a trapezoidal block (61), the bottom of the trapezoidal block (61) is fixedly connected with a first elastic sheet (62) fixedly connected to the support plate (21), the first elastic sheet (62) is used to squeeze the trapezoidal block (61) and keep the trapezoidal block (61) moving upward, and the inside of the movable component (2) is movably connected with first inclined blocks (63) located on both sides of the trapezoidal block (61).

8. The head and neck protection device for tumor radiotherapy according to claim 7, characterized in that: The opposite ends of the two first inclined blocks (63) are both in the shape of inclined surfaces, and the two ends of the bottom of the trapezoidal block (61) are respectively in contact with the inclined surfaces of the two first inclined blocks (63). The top of the first inclined block (63) is fixedly connected with a protruding rod. The first inclined block (63) passes through the outer wall of the moving component (2) and extends to the interior of the fixed block (8).

9. The head and neck protection device for tumor radiotherapy according to claim 7, characterized in that: The opposite sides of the two first inclined blocks (63) are fixedly connected with a second elastic sheet (64) fixed to the fixed block (8), the interior of the fixed block (8) is movably connected with a pressing block (65), and the opposite sides of the two pressing blocks (65) are provided with a buckle (67), and the buckle (67) is located on the outer side of the fixed block (8).

10. The head and neck protection device for tumor radiotherapy according to claim 9, characterized in that: A second inclined block (66) is movably connected to one end of the pressing block (65), one end of the second inclined block (66) is in the shape of an inclined surface, and the opposite ends of the two second inclined blocks (66) are fixedly connected to a third elastic sheet (68), and the second inclined block (66) is elastically connected to the pressing block (65) through the third elastic sheet (68), and a square groove for matching with the second inclined block (66) is provided at the top end of the inner wall of the fixed block (8).

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