Head and neck tumor radiotherapy protection device

Abstract

The invention relates to a head and neck tumor radiotherapy protection device which comprises a headrest arranged at the top of an extension table at one end of a sickbed, a helmet for a patient to wear is arranged at the top of the extension table, a cover plate is detachably arranged in rectangular holes formed in the outer wall of the helmet, and a protection cylinder for protecting a radiotherapy part is inserted into one rectangular hole. A mask for protecting the face of a patient is arranged on the helmet; the neck protection assembly is arranged at the bottom end of the helmet and used for protecting the neck of the patient; the fixing mechanism is arranged on the extension table and used for fixing the extension table to one end of the sickbed and fixing the helmet to the extension table; the limiting assembly is arranged on the extension table, is matched with the fixing mechanism for use, and is used for stabilizing the head in the helmet and fixing the protective cylinder on the helmet; the head protection device solves the problems that a space exists between a head sleeve and scalp in an existing head protection device, the head cannot be fixed, surrounding skin can be radiated through an included angle in the treatment process, and the protection effect is poor.

Description

Technical Field

[0001] The invention belongs to the field of medical protection and relates to a head and neck tumor radiotherapy protection device. Background Art

[0002] Tumor radiotherapy is a local treatment method that uses radiation to treat tumors. About 70% of cancer patients need to receive radiotherapy during treatment, and about 40% of cancer patients can be cured by radiotherapy. Some harmful substances will be released during radiotherapy, so the skin needs to be protected. However, the existing protective device uses a cage-type headgear with multiple through holes for radiotherapy. However, there is a gap between the headgear and the scalp, which not only makes it impossible to fix the head, but also causes the radiation to radiate to the surrounding skin at a certain angle during treatment, resulting in poor protection. Summary of the invention

[0003] In view of this, the present invention provides a head and neck tumor radiotherapy protection device to solve the problem that there is a distance between the headgear and the scalp in the existing head protection device, which not only fails to fix the head, but also radiates the surrounding skin through the angle during treatment, resulting in poor protection effect.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A head and neck tumor radiotherapy protective device comprises an extension platform detachably connected to one end of a hospital bed, a headrest is arranged on the top of the extension platform, a helmet for a patient to wear is arranged on the top of the extension platform, a plurality of rectangular holes for radiotherapy are opened on the outer wall of the helmet, a cover plate is detachably arranged in the rectangular holes, a protective cylinder for protecting a radiotherapy site is inserted in one of the rectangular holes, and a mask for protecting the patient's face is arranged on the helmet;

[0006] A neck protection component is arranged at the bottom of the helmet and is used to protect the patient's neck;

[0007] A fixing mechanism is arranged on the extension platform and is used to fix the extension platform to one end of the hospital bed and fix the helmet to the extension platform at the same time;

[0008] The limiting component is arranged on the extension platform and is used in conjunction with the fixing mechanism to stabilize the head in the helmet and fix the protective tube on the helmet.

[0009] Furthermore, the neck protection mechanism includes two rubber strips, and the same protective cloth is slidably provided between the two rubber strips. One of the rubber strips is fixed to the bottom end of the helmet, and the two ends of the rubber strip are plugged in to form a ring so that the protective cloth can move in a ring. A through hole is opened on the top of the protective cloth, and the through hole corresponds to the radiotherapy position. An extension cloth is fixed on one side of the rubber strip, and a plurality of support strips are fixed between the two rubber strips.

[0010] Furthermore, two first fixed blocks are fixedly provided at one end of the rubber strip, and a common rotating shaft is rotatably provided through the tops of the two first fixed blocks. A second fixed block is fixedly provided at the other end of the rubber strip, and a groove is provided on one side of the second fixed block, and the groove corresponds to the diameter of the rotating shaft. A rectangular opening corresponding to the second fixed block is provided on the outer wall of the rotating shaft.

[0011] Furthermore, the fixing mechanism includes a rotating bar rotatably arranged at the bottom of the bed, two sliding blocks are slidably arranged on the top of the extension platform, two sliding holes are opened on the top of the extension platform, sliding plates are arranged in the sliding holes, the rotating bar is located between the two sliding plates, wedge blocks are fixedly arranged on the sides of the two sliding plates close to each other, a second insertion hole corresponding to the two wedge blocks is opened on one side of the rotating bar, a bidirectional screw is rotatably arranged on the top of the extension platform, and the two sliding blocks are threadedly sleeved on the bidirectional screw.

[0012] Furthermore, a support column is fixedly provided on the helmet, a pin column is fixedly provided on one side of one sliding block, and a first plug hole matched with the pin column is opened on one side of the support column for fixing the helmet on the extension platform.

[0013] Furthermore, the limiting mechanism includes a cavity opened on one side of the other sliding block, a piston plate slidingly provided in the cavity for use with a pin, a spring provided in the cavity, two ends of the spring fixedly connected to an inner wall of one side of the cavity and one side of the piston plate respectively, a three-way joint connected to the cavity is fixedly provided through the top of the sliding block, the other two ends of the three-way joint are connected to a first connecting tube, two first airbags are provided in the helmet, the other end of the first connecting tube is connected to the corresponding first airbag, and the head is fixed in the helmet by utilizing the expansion of the first airbag.

[0014] Furthermore, nut blocks are fixedly provided on both sides of the protective tube, a first screw rod is threaded through one side of the nut block, and a suction cup adsorbed to the helmet is provided at one end of the first screw rod for fixing the protective tube on the helmet.

[0015] Furthermore, a rotating seat is fixedly provided on one side of the suction cup, a universal ball is embedded on one side of the rotating seat, and the universal ball is fixedly provided on one end of the first screw rod.

[0016] Furthermore, a cylinder is fixedly provided on the top of the extension platform, piston rods are slidably provided at both ends of the cylinder, an extension seat is fixedly provided on one side of the sliding block, one end of the piston rod is fixedly connected to the corresponding extension seat, and second connecting pipes are connected to both ends of the cylinder, and the other end of the second connecting pipe is connected to the corresponding suction cup for evacuating the air between the suction cup and the helmet.

[0017] Furthermore, a third connecting tube is connected to the middle section of the cylinder, a second airbag corresponding to the through hole is fixedly provided at the bottom of the protective cloth, and the other end of the third connecting tube is connected to the second airbag for driving the second airbag to fit the neck.

[0018] The beneficial effects of the present invention are:

[0019] 1. A head and neck tumor radiotherapy protective device disclosed in the present invention has a plurality of rectangular holes for radiotherapy on the helmet, and a cover plate and a protective tube are detachably provided inside. The protective tube can be used in conjunction with the cover plate and can be easily adjusted according to radiotherapy needs, so that it can effectively protect the non-radiotherapy area of ​​the head. The protective tube can be flexibly fixed to the helmet through structures such as a suction cup and a universal ball, thereby ensuring the stability of the head and the radiotherapy area during radiotherapy.

[0020] 2. A head and neck tumor radiotherapy protection device disclosed in the present invention realizes a stable connection between the extension platform and the bed, and a stable fixation of the helmet on the extension platform through structures such as a rotating bar, a sliding block, a sliding plate, and a wedge block. At the same time, the head is fixed in the helmet by the expansion of the first airbag, which can effectively fix the head and is convenient and quick to operate.

[0021] 3. The present invention discloses a head and neck tumor radiotherapy protection device. The neck protection component is set by sliding between two rubber strips, so that the protective cloth can move in a circle to adapt to the neck sizes of different patients. At the same time, the two ends of the rubber strip are connected in a ring shape by a rotating shaft and a rectangular opening and other structures to facilitate adjustment and fixation. In addition, the setting of the second airbag can further fit the patient's neck to provide additional support and protection.

[0022] 4. The head and neck tumor radiotherapy protection device disclosed in the present invention realizes comprehensive, flexible and stable protection for the patient's head and neck through an extension platform, a helmet, a neck protection component and a fixing and limiting mechanism. It is not only convenient to adjust the position of the radiotherapy hole and the protection tube according to the radiotherapy needs, but also ensures the stability of the head and radiotherapy area through technical means such as airbag inflation and suction cup fixation. At the same time, the slidable protective cloth and the second airbag are used to provide a close-fitting protection for the patient's neck, thereby improving the comfort and safety of radiotherapy.

[0023] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a head and neck tumor radiotherapy protection device according to the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a helmet of a head and neck tumor radiotherapy protection device of the present invention;

[0027] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure from another perspective;

[0028] Figure 4 This is a schematic diagram of the structure of a protective tube of a head and neck tumor radiotherapy protective device of the present invention;

[0029] Figure 5 This is a schematic diagram of the installation structure of the protective cloth of a head and neck tumor radiotherapy protective device of the present invention;

[0030] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure from another perspective;

[0031] Figure 7 This is a schematic diagram of the plug connection structure of a head and neck tumor radiotherapy protection device of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure of a connecting platform and a sliding block of a head and neck tumor radiotherapy protection device of the present invention;

[0033] Fig. 9 This is a cross-sectional view of a sliding block of a head and neck tumor radiotherapy protection device of the present invention;

[0034] Fig.10 This is a schematic diagram of the connection structure between a hospital bed and a connecting platform of a head and neck tumor radiotherapy protection device of the present invention.

[0035] Figure numerals: 1, hospital bed; 2, extension platform; 3, helmet; 4, mask; 5, rectangular hole; 6, cover plate; 7, first airbag; 8, protective cloth; 9, through hole; 10, headrest; 11, protective tube; 12, support column; 13, first plug hole; 15, first connecting pipe; 16, nut block; 17, first screw rod; 18, universal ball; 19, rotating seat; 20, suction cup; 21, second connecting pipe; 22, second airbag; 23, extension cloth; 24, rubber strip; 25. Support bar; 26. First fixed block; 27. Bidirectional screw; 28. Rotating shaft; 29. ​​Rectangular opening; 30. Second fixed block; 31. Groove; 32. Sliding block; 33. Pin; 34. Third connecting pipe; 35. Cylinder; 36. Extension seat; 37. Piston rod; 38. Cavity; 39. Piston plate; 40. Spring; 41. T-joint; 42. Sliding hole; 43. Sliding plate; 44. Wedge block; 45. Rotating bar; 46. Second plug hole. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0037] like Figure 1-Figure 10 In the head and neck tumor radiotherapy protection device shown, the extension platform 2 is detachably connected to one end of the bed 1. A headrest 10 and a helmet 3 are provided on the top of the extension platform 2. A plurality of rectangular holes 5 are provided on the outer wall of the helmet 3, which are used for radiotherapy, and a cover plate 6 is detachably provided in each rectangular hole 5. In order to protect a specific radiotherapy site, a protective tube 11 is inserted into one of the rectangular holes 5, and the protective tube 11 can be used interchangeably with the cover plate 6 according to the treatment area. In addition, a mask 4 is provided on the helmet 3 for protecting the patient's face.

[0038] At the bottom end of the helmet 3, a neck protection component is provided. The component is mainly composed of two rubber strips 24, between which a protective cloth 8 is slidably provided. One of the rubber strips 24 is fixed to the bottom end of the helmet 3, and the two ends of the two rubber strips 24 are plugged into a ring so that the protective cloth 8 can move in a ring. A through hole 9 is provided at the top of the protective cloth 8, and the through hole 9 corresponds to the radiotherapy position. At the same time, an extension cloth 23 is fixed on one side of the rubber strip 24 to achieve comprehensive protection, and a plurality of support strips 25 are fixed between the two rubber strips 24 to provide necessary support for the two rubber strips 24.

[0039] Furthermore, two first fixing blocks 26 are fixedly provided at one end of the rubber strip 24, and a same rotating shaft 28 is rotatably provided through the tops of the two first fixing blocks 26. A second fixing block 30 is fixedly provided at the other end of the rubber strip 24, and a groove 31 corresponding to the diameter of the rotating shaft 28 is provided on one side of the second fixing block 30. A rectangular opening 29 corresponding to the second fixing block 30 is also provided on the outer wall of the rotating shaft 28 to realize the annular connection of the rubber strip 24. When the rectangular opening 29 corresponds to the second fixing block 30, the second fixing block can be inserted between the two first fixing blocks 26. When the rectangular opening 29 is misaligned with the groove 31, the second fixing block 30 can be fixed.

[0040] In order to fix the extension platform 2 on the bed 1 and the helmet 3 on the extension platform 2, a fixing mechanism is provided. The mechanism includes a rotating bar 45 rotatably provided at the bottom of the bed 1, and two sliding blocks 32 slidably provided at the top of the extension platform 2. Two sliding holes 42 are also provided at the top of the extension platform 2, and a sliding plate 43 is provided in each sliding hole 42. The rotating bar 45 is located between the two sliding plates 43, and a wedge block 44 is fixedly provided on the side of the two sliding plates 43 close to each other. A second plug hole 46 corresponding to the two wedge blocks 44 is provided on one side of the rotating bar 45. In addition, a bidirectional screw 27 is also rotatably provided at the top of the extension platform 2, and the two sliding blocks 32 are both threadedly sleeved on the bidirectional screw 27. By rotating the bidirectional screw 27, the two sliding blocks 32 can be driven to move to the middle or both sides at the same time, thereby driving the sliding plate 43 and the wedge block 44 to move, and the wedge block 44 can be driven to insert into the corresponding second plug hole 46, so as to achieve the fixing of the extension platform 2 and the bed 1.

[0041] The helmet 3 is connected to the extension platform 2 via the support column 12. The support column 12 is fixedly provided on the helmet 3, a pin 33 is fixedly provided on one side of a sliding block 32, and a first plug hole 13 adapted to the pin 33 is provided on one side of the support column 12. When the sliding block 32 moves to an appropriate position, the pin 33 can be inserted into the first plug hole 13, thereby fixing the helmet 3 on the extension platform 2.

[0042] In order to ensure that the head is stably fixed in the helmet 3 and the protective tube 11 is fixed on the helmet 3 at the same time, a limiting mechanism is provided. The mechanism includes a cavity 38 opened on one side of another sliding block 32, and a piston plate 39 used in conjunction with the pin 33 is slidably provided in the cavity 38. A spring 40 is also provided in the cavity 38, and the two ends of the spring 40 are respectively fixedly connected to the inner wall of one side of the cavity 38 and one side of the piston plate 39. A three-way joint 41 connected to the cavity 38 is fixedly provided through the top of the sliding block 32, and the other two ends of the three-way joint 41 are connected to the first connecting pipe 15. Two first air bags 7 are provided in the helmet 3, and the other end of the first connecting pipe 15 is connected to the corresponding first air bag 7. When the piston plate 39 is moved under pressure, the spring 40 is compressed and the air in the cavity 38 is pushed into the first air bag 7 through the first connecting pipe 15, so that it expands and fixes the head.

[0043] Nut blocks 16 are fixedly provided on both sides of the protective tube 11, and a first screw rod 17 is threadedly provided on one side of the nut block 16. A suction cup 20 adsorbed on the helmet 3 is provided at one end of the first screw rod 17, which is used to fix the protective tube 11 on the helmet 3. A rotating seat 19 is fixedly provided on one side of the suction cup 20, and a universal ball 18 is embedded on one side of the rotating seat 19, and the universal ball 18 is fixedly provided on one end of the first screw rod 17 to achieve flexible fixed angle adjustment.

[0044] In order to enhance the stability of the fixation, a cylinder 35 is fixedly provided on the top of the extension platform 2. Piston rods 37 are slidably provided at both ends of the cylinder 35, and an extension seat 36 is fixedly provided on one side of the sliding block 32. One end of the piston rod 37 is fixedly connected to the corresponding extension seat 36. Both ends of the cylinder 35 are connected to the second connecting pipe 21, and the other end of the second connecting pipe 21 is connected to the corresponding suction cup 20. When the piston rod 37 moves, the air between the suction cup 20 and the helmet 3 is evacuated through the second connecting pipe 21, further enhancing the stability of the fixation.

[0045] In addition, the middle section of the cylinder 35 is also connected to a third connecting tube 34. The bottom of the protective cloth 8 is fixedly provided with a second airbag 22 corresponding to the through hole 9, and the other end of the third connecting tube 34 is connected to the second airbag 22. When the two piston rods 37 are close to each other, the air in the cylinder 35 can be squeezed out, and the squeezed air can enter the second airbag 22 through the third connecting tube 34, so that it expands and fits on the patient's neck, providing additional neck protection.

[0046] When the head and neck tumor radiotherapy protective device is used, the rotating bar 45 is turned to rotate so that the rotating bar 45 is parallel to the bed 1, and then the extension platform 2 is moved to one end of the bed 1 so that the rotating bar 45 is located between the two wedge blocks 44. Then the patient wears the helmet 3 on the head and pulls the two ends of the rubber strip 24 to make them butt, which can drive the second fixing block 30 to move between the two extension seats 36. Then the rotating shaft 28 is rotated to make the rectangular opening 29 and the groove 31 misaligned, so that the second fixing block 30 can be fixed. At this time, the rubber strip 24 is in a ring shape.

[0047] Then the patient lies on the bed 1 and puts his head on the extension platform 2 until the support column 12 hits the top of the extension platform 2. Then the medical staff observes the position of the first socket 13 and the pin 33 to make them correspond. At the same time, the corresponding cover plate 6 is removed according to the position of radiotherapy, and the protective tube 11 is inserted into the corresponding rectangular hole 5, so that the suction cup 20 is adsorbed on the helmet 3, and then the bidirectional screw 27 is rotated. The rotation of the bidirectional screw 27 can drive the two sliding blocks 32 to approach each other. The movement of the sliding block 32 can drive the pin 33 to move, so that the pin 33 is inserted into the corresponding first socket 13. When the pin 33 contacts the piston plate 39, it can squeeze the gas in the cavity 38, so that the gas passes through the three-way joint 41 and the first connecting pipe 15 into the corresponding first The head can be fixed in the helmet 3 in the airbag 7, and the sliding block 32 can drive the two piston rods 37 to move into the cylinder 35 during the movement. During the movement, the air between the suction cup 20 and the helmet 3 can be extracted through the second connecting tube 21, so that the suction cup 20 is tightly adsorbed on the helmet 3, and then the first screw 17 is rotated. During the rotation of the first screw 17, the protective tube 11 can be driven to move into the helmet 3 until one end of the protective tube 11 can touch the scalp. At this time, the protection is completed, and the two sliding blocks 32 can drive the two sliding plates 43 to move closer to each other during the approaching process. During the approaching process, the two wedge blocks 44 can be driven to insert into the second plug hole 46, and the extension table 2 is fixed to one end of the bed 1, and then radiotherapy is performed through external equipment;

[0048] When radiotherapy is required for the neck, the protective cloth 8 is pushed to move within the two rubber strips 24. The movement of the protective cloth 8 can adjust the position of the through hole 9 until the through hole 9 corresponds to the radiotherapy position. During the movement of the two piston rods 37 into the cylinder 35, the gas in the cylinder 35 can be squeezed out. The gas enters the second airbag 22 through the third connecting tube 34, causing the second airbag 22 to expand, which can drive the second airbag 22 to contact the neck, and then radiotherapy is performed.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A head and neck tumor radiotherapy protection device, characterized in that: The invention comprises an extension platform (2) detachably connected to one end of a hospital bed (1), a headrest (10) being provided on the top of the extension platform (2), a helmet (3) for the patient to wear being provided on the top of the extension platform (2), a plurality of rectangular holes (5) for radiotherapy being provided on the outer wall of the helmet (3), a cover plate (6) being detachably provided in the rectangular holes (5), a protective tube (11) for protecting the radiotherapy site being inserted into one of the rectangular holes (5), and a mask (4) for protecting the patient's face being provided on the helmet (3); A neck protection component, arranged at the bottom end of the helmet (3) and used for protecting the patient's neck; A fixing mechanism, arranged on the extension platform (2), used for fixing the extension platform (2) to one end of the hospital bed (1), and simultaneously fixing the helmet (3) to the extension platform (2); The limiting assembly is arranged on the extension platform (2) and is used in conjunction with the fixing mechanism to stabilize the head in the helmet (3) and simultaneously fix the protective tube (11) on the helmet (3).

2. A head and neck tumor radiotherapy protection device as claimed in claim 1, characterized in that: The neck protection mechanism comprises two rubber strips (24), a same protective cloth (8) being slidably arranged between the two rubber strips (24), one of the rubber strips (24) being fixed to the bottom end of the helmet (3), the two ends of the rubber strip (24) being plugged into each other to form a ring shape, allowing the protective cloth (8) to move in a ring shape, a through hole (9) being provided at the top of the protective cloth (8), the through hole (9) corresponding to the radiotherapy position, an extension cloth (23) being fixedly arranged on one side of the rubber strip (24), and a plurality of support strips (25) being fixedly arranged between the two rubber strips (24).

3. A head and neck tumor radiotherapy protection device as claimed in claim 2, characterized in that: Two first fixing blocks (26) are fixedly provided at one end of the rubber strip (24), and a common rotating shaft (28) is rotatably provided through the tops of the two first fixing blocks (26). A second fixing block (30) is fixedly provided at the other end of the rubber strip (24), and a groove (31) is provided on one side of the second fixing block (30), and the groove (31) corresponds to the diameter of the rotating shaft (28). A rectangular opening (29) corresponding to the second fixing block (30) is provided on the outer wall of the rotating shaft (28).

4. A head and neck tumor radiotherapy protection device as claimed in claim 2, characterized in that: The fixing mechanism comprises a rotating bar (45) rotatably arranged at the bottom of the hospital bed (1); two sliding blocks (32) are slidably arranged at the top of the extension platform (2); two sliding holes (42) are provided at the top of the extension platform (2); sliding plates (43) are provided in the sliding holes (42); the rotating bar (45) is located between the two sliding plates (43); wedge blocks (44) are fixedly arranged on the sides of the two sliding plates (43) close to each other; a second plug hole (46) corresponding to the two wedge blocks (44) is provided on one side of the rotating bar (45); a bidirectional screw (27) is rotatably arranged at the top of the extension platform (2); and the two sliding blocks (32) are threadedly sleeved on the bidirectional screw (27).

5. A head and neck tumor radiotherapy protection device as claimed in claim 4, characterized in that: A support column (12) is fixedly provided on the helmet (3), a pin column (33) is fixedly provided on one side of one of the sliding blocks (32), and a first plug hole (13) adapted to the pin column (33) is provided on one side of the support column (12) for fixing the helmet (3) on the extension platform (2).

6. A head and neck tumor radiotherapy protection device as claimed in claim 5, characterized in that: The limiting mechanism comprises a cavity (38) opened on one side of the other sliding block (32), a piston plate (39) for use with the pin (33) being slidably arranged in the cavity (38), a spring (40) being arranged in the cavity (38), two ends of the spring (40) being fixedly connected to an inner wall of one side of the cavity (38) and one side of the piston plate (39) respectively, a three-way joint (41) being fixedly arranged through the top of the sliding block (32) and being connected to the cavity (38), the other two ends of the three-way joint (41) being connected to a first connecting pipe (15), two first air bags (7) being arranged in the helmet (3), the other ends of the first connecting pipes (15) being connected to the corresponding first air bags (7), and the head being fixed in the helmet (3) by means of the expansion of the first air bags (7).

7. A head and neck tumor radiotherapy protection device as claimed in claim 6, characterized in that: Nut blocks (16) are fixedly provided on both sides of the protective tube (11), a first screw rod (17) is threadedly provided through one side of the nut block (16), and a suction cup (20) adsorbed on the helmet (3) is provided at one end of the first screw rod (17) for fixing the protective tube (11) on the helmet (3).

8. A head and neck tumor radiotherapy protection device as claimed in claim 7, characterized in that: A rotating seat (19) is fixedly provided on one side of the suction cup (20), a universal ball (18) is embedded on one side of the rotating seat (19), and the universal ball (18) is fixedly provided on one end of the first screw rod (17).

9. A head and neck tumor radiotherapy protection device as claimed in claim 8, characterized in that: A cylinder (35) is fixedly provided on the top of the extension platform (2), piston rods (37) are slidably provided at both ends of the cylinder (35), an extension seat (36) is fixedly provided on one side of the sliding block (32), one end of the piston rod (37) is fixedly connected to the corresponding extension seat (36), and both ends of the cylinder (35) are connected to a second connecting pipe (21), and the other end of the second connecting pipe (21) is connected to the corresponding suction cup (20) for evacuating air between the suction cup (20) and the helmet (3).

10. A head and neck tumor radiotherapy protection device as claimed in claim 9, characterized in that: The middle section of the cylinder (35) is connected to a third connecting pipe (34), a second air bag (22) corresponding to the through hole (9) is fixedly provided at the bottom of the protective cloth (8), and the other end of the third connecting pipe (34) is connected to the second air bag (22) for driving the second air bag (22) to fit the neck.

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