Skin protection device for radiotherapy patients

Abstract

The present invention relates to the technical field of medical devices, and in particular provides a skin protection device for radiotherapy patients, including a shoulder seat. One end of the shoulder seat is provided with a support tube, and a mandibular seat is installed at the top end after the support tube bends upward. A protective belt is provided at the rear side of the support tube, and an air passage is opened in the middle of the protective belt. The protective belt is located above the shoulder seat. A protective pad capable of moving along its length direction is provided on the protective belt. One end of the protective belt is connected to the support tube, and the other end of the protective belt is free. Magic tapes are provided at both the end of the protective belt connected to the support tube and the free end of the protective belt. The skin at the lesion site will not turn red and swollen, and will not affect the postoperative rehabilitation of the lesion site. The protective belt has breathability. Only the protective pad is used to protect the surgical site, while other parts of the neck are exposed to achieve ventilation. If itching occurs at the lesion site, the protective pad can be adjusted to expose the lesion site, and then protection can be carried out after the itching is relieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a skin protection device for radiotherapy patients. Background Art

[0002] When there are radiotherapy lesions (or operative sites) in the neck area, in order to prevent the area from being interfered by ultraviolet rays when exposed to sunlight, it is necessary to wear a protective sheath on the neck to cover the lesions.

[0003] Existing sheaths are similar to scarves or neck collars. When in use, they are wrapped around the neck as a whole, resulting in poor air permeability of the neck and itchy skin. The itching causes the lesions to change from moist to red and swollen, which will affect the rehabilitation effect of the lesions. Moreover, the lesion sites of different patients are not the same, and the general effect is poor. The method of manually loosening the neck collar is extremely likely to cause lesion infection. When the skin on the neck wrinkles during the wearing process, it will cause discomfort to the lesions. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a skin protection device for radiotherapy patients, including a shoulder seat. One end of the shoulder seat is provided with a support tube. A mandibular seat is installed at the top after the support tube bends upward. A protective belt is provided at the rear side of the support tube. An air passage is opened in the middle of the protective belt. The protective belt is located above the shoulder seat. A protective pad capable of moving along its length direction is provided on the protective belt. One end of the protective belt is connected to the support tube, and the other end of the protective belt is free. Magic tapes are provided at both the end of the protective belt connected to the support tube and the free end of the protective belt. The free end of the protective belt bends forward for one week and is detachably connected to the support tube through the magic tape. The opening of the mandibular seat faces upward, and a height adjustment component is provided inside the upward bending section of the mandibular seat and the support tube.

[0005] As a further preferred option, the height adjustment component includes a rack vertically upward and its top penetrates into the mandibular seat. A height adjustment seat located inside the mandibular seat is installed at the top of the rack. A gear component is provided at the detachable connection between the free end of the protective belt and the support tube. The gear component includes a driving gear installed on the support tube, and also includes a driven gear installed on the free end of the protective belt. Among them, the gear component further includes a thin steel wire connected between the driven gear and the protective pad. When the free end of the protective belt is detachably connected to the support tube through the magic tape, the driven gear is also engaged with the driving gear.

[0006] As a further preference, a transmission mechanism is provided inside the upwardly bent section of the support pipe. The transmission mechanism includes a transmission shaft installed on the bent portion of the support pipe through a bearing. A sleeve is fixed on the outer wall of the support pipe. The inner end of the transmission shaft passes through the sleeve and enters the bent portion of the support pipe, and a cylindrical gear meshing with the rack is installed. A belt pulley assembly for switching and controlling the rotation of the driven gear and the lifting of the rack is provided between the sleeve and the driving gear. When the inner end of the transmission shaft abuts against the positioning assembly, the positioning assembly can position the rack for height adjustment.

[0007] As a further preference, the belt pulley assembly includes a driving belt pulley installed on the sleeve through a bearing, and also includes a driven belt pulley installed on the driving gear, and further includes a conveyor belt drivingly connected between the driving belt pulley and the driven belt pulley. A pressure seat is installed at the outer end of the transmission shaft. When the pressure seat pushes the transmission shaft to move inward, the cylindrical gear at the inner end can be disengaged from the rack, and at the same time, the inner surface of the pressure seat can press on the driving belt pulley. When the pressure seat drives the transmission shaft to move outward, the cylindrical gear at the inner end can be engaged with the rack again.

[0008] As a further preference, a rubber seat facing the outer end of the driving belt pulley is provided on the inner end face of the pressure seat, and the outer end of the pressure seat is spherical.

[0009] As a further preference, a shoulder carrying groove is formed at the bottom of the shoulder seat. The shoulder carrying groove is V-shaped, and the V-shaped opening faces downward.

[0010] As a further preference, the conveyor belt is located inside the driving gear, and the conveyor belt is also located inside the magic tape on the bent portion of the support pipe.

[0011] As a further preference, the shape of the height adjustment seat is the same as that of the lower jaw seat, and the height adjustment seat is arranged in the lower jaw seat in the form of a lining. The two sides of the height adjustment seat are in sliding contact with the inner wall surface of the lower jaw seat.

[0012] As a further preference, the lower jaw seat is a mesh cover, the height adjustment seat is a mesh seat, and air holes communicating with the mesh holes on the lower jaw seat are formed on the height adjustment seat.

[0013] As a further preference, two guiding members are provided on the inner side surface of the protective belt. The upper and lower ends of the protective pad are slidably fitted on the two guiding members. A hanging ring is welded on the outer side surface of the protective belt, and the thin steel wire passes through the hanging ring.

[0014] As a further preference, the transmission mechanism further includes a positioning component. An articulated groove is formed on the upwardly bent section of the support pipe. The [positioning component] is located behind the transmission shaft and the rack. The positioning component includes a positioning rod pivotally connected to the articulated groove through a torsion spring type rotating shaft, a positioning plate welded to the rear surface of the rack, and a plurality of positioning grooves formed on the positioning plate. The positioning rod is V-shaped. One V-shaped end of the positioning rod faces downward and is located on the movement path of the transmission shaft. The other V-shaped end of the positioning rod faces upward and is located behind the positioning groove. When the transmission shaft drives the rubber seat to press against the outer end surface of the driving pulley, in addition to pushing the cylindrical gear away from the rack, it also pushes the positioning rod to deflect upward, and makes one end of the positioning rod abut against the positioning groove to limit the lifting height of the rack.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] 1. A shoulder seat is provided, a support pipe is provided, and a mandibular seat is provided on the support pipe. When the device is used, the shoulder seat is placed on the shoulder, and the mandibular seat is buckled on the chin. Supported by the shoulder seat, the mandibular seat forms a support for the chin, forcing the neck to be straightened upward. Only the skin on the neck is straightened upward. The protective belt is wound around the neck. In addition to forming a protection for the lesions on the neck to reduce ultraviolet exposure, it also prevents the skin on the neck from being wrinkled and deformed at the lesion site due to frequent bending movements of the neck. The skin at the lesion site will not be red and swollen, and will not affect the postoperative rehabilitation of the lesion site. The protective belt has breathability. Only the protective pad is used to protect the surgical site, while other parts of the neck are exposed to achieve ventilation. If itching occurs at the lesion site, the protective pad can be adjusted to expose the lesion, and then the protection can be carried out after the itching is relieved.

[0017] 2. The protective pad can be adjusted in position on the protective belt. When the free through end of the protective belt is buckled on the support pipe by means of a magic tape, in addition to binding and protecting the neck, the driven gear on the free end just coincides with the lower part of the transmission shaft used to adjust the height of the mandibular seat and meshes with the driving gear on the transmission shaft. At this time, when the transmission shaft is rotated, the driving gear is rotated by the transmission shaft, and the driven gear is rotated by the driving gear, so that the driven gear winds the fine steel wire, and the position of the protective pad is adjusted by the fine steel wire. This adjustment function is not only used for adjusting the height of the mandibular seat, but also for adjusting the position of the protective pad. The two adjustment functions use the same adjustment mechanism, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the radiotherapy patient skin protection device provided by the embodiment of the present invention from the front side perspective;

[0019] Figure 2Schematic diagram of one side of the shoulder seat of the skin protection device for radiotherapy patients provided by the embodiment of the present invention;

[0020] Figure 3 Schematic diagram when the skin protection device for radiotherapy patients provided by the embodiment of the present invention is partially cut open;

[0021] Figure 4 The skin protection device for radiotherapy patients provided by the embodiment of the present invention is from Figure 3 Enlarged schematic diagram of part A drawn;

[0022] Figure 5 Schematic diagram from the perspective of the protective belt in the skin protection device for radiotherapy patients provided by the embodiment of the present invention;

[0023] Figure 6 Front view plane schematic diagram of the skin protection device for radiotherapy patients provided by the embodiment of the present invention;

[0024] Figure 7 The skin protection device for radiotherapy patients provided by the embodiment of the present invention is from Figure 3 Schematic diagram from another perspective drawn;

[0025] Figure 8 The skin protection device for radiotherapy patients provided by the embodiment of the present invention is from Figure 7 Enlarged schematic diagram of part B drawn.

[0026] In the figure: 1. Shoulder seat; 101. Shoulder carrying groove; 2. Support tube; 21. Transmission shaft; 22. Cylindrical gear; 23. Sleeve; 24. Belt pulley assembly; 241. Driving belt pulley; 242. Driven belt pulley; 234. Conveyor belt; 25. Pressing seat; 251. Rubber seat; 3. Mandibular seat; 4. Protective belt; 41. Air passage; 5. Protective pad; 6. Magic tape; 7. Height adjustment assembly; 71. Rack; 72. Height adjustment seat; 8. Gear assembly; 81. Driving gear; 82. Driven gear; 83. Fine steel wire; 10. Guide member; 11. Hanging ring; 12. Positioning assembly; 121. Positioning rod; 122. Positioning plate; 123. Positioning groove; 13. Hinge groove. Specific embodiments

[0027] The following will clearly and completely describe the above-mentioned and other embodiments and advantages of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments.

[0028] In one embodiment, as Figures 1-8 shown:

[0029] This embodiment provides a skin protection device for radiotherapy patients, including a shoulder seat 1. One end of the shoulder seat 1 is provided with a support tube 2. At the top of the support tube 2 after bending upward, a mandible seat 3 is installed. At the rear side of the support tube 2, there is a protective belt 4. In the middle of the protective belt 4, an air passage 41 is opened. The protective belt 4 is located above the shoulder seat 1. On the protective belt 4, there is a protective pad 5 that can move along its length direction. One end of the protective belt 4 is connected to the support tube 2, and the other end of the protective belt 4 is free. At both the end of the protective belt 4 connected to the support tube 2 and the free end of the protective belt 4, there are magic tapes 6. The free end of the protective belt 4 is bent forward in a circle and is detachably connected to the support tube 2 through the magic tape 6;

[0030] The opening of the mandible seat 3 faces upward. Inside the upward bending section of the mandible seat 3 and the support tube 2, there is a height adjustment component 7. The height adjustment component 7 includes a rack 71 that is vertically upward and its top penetrates into the mandible seat 3. At the top of the rack 71, a height adjustment seat 72 located inside the mandible seat 3 is installed. The shape of the height adjustment seat 72 is the same as that of the mandible seat 3, and the height adjustment seat 72 is arranged in the mandible seat 3 in the form of a lining. The two sides of the height adjustment seat 72 are in sliding contact with the inner wall surface of the mandible seat 3. At the detachable connection part between the free end of the protective belt 4 and the support tube 2, there is a gear component 8. The gear component 8 includes a driving gear 81 installed on the support tube 2, and also includes a driven gear 82 installed on the free end of the protective belt 4;

[0031] Among them, the gear component 8 also includes a thin steel wire 83 connected between the driven gear 82 and the protective pad 5. When the free end of the protective belt 4 is detachably connected to the support tube 2 through the magic tape 6, the driven gear 82 is also engaged with the driving gear 81;

[0032] Inside the upward bending section of the support tube 2, there is a transmission mechanism. The transmission mechanism includes a transmission shaft 21 installed on the bending part of the support tube 2 through a bearing. On the outer wall of the support tube 2, a sleeve 23 is fixed. The inner end of the transmission shaft 21 passes through the sleeve 23 and enters the bending part of the support tube 2, and a cylindrical gear 22 engaged with the rack 71 is installed. Between the sleeve 23 and the driving gear 81, there is a pulley component 24 for switching to control the rotation of the driven gear 82 and the lifting of the rack 71. The pulley component 24 includes a driving pulley 241 installed on the sleeve 23 through a bearing, and also includes a driven pulley 242 installed on the driving gear 81, and also includes a transmission belt 243 drivingly connected between the driving pulley 241 and the driven pulley 242. The outer end of the transmission shaft 21 is installed with a pressure seat 25. When the pressure seat 25 pushes the transmission shaft 21 to move inward, it can make the cylindrical gear 22 at the inner end disengage from the rack 71, and at the same time, it can also make the inner surface of the pressure seat 25 press on the driving pulley 241. When the pressure seat 25 drives the transmission shaft 21 to move outward, it can make the cylindrical gear 22 at the inner end engage with the rack 71 again.

[0033] During use, the shoulder rest 1 is buckled on the side shoulder of the patient through the shoulder-carrying groove 101. At this time, the support tube 2 is in the front, and the mandible rest 3 reaches the bottom of the mandible. The mandible rests on the mandible rest 3 and is supported by the height-adjusting seat 72. Both the height-adjusting seat 72 and the mandible rest 3 are breathable. For example, the mandible rest 3 is a mesh cover, and the height-adjusting seat 72 is a mesh seat. The height-adjusting seat 72 is provided with air holes that communicate with the mesh holes on the mandible rest 3 up and down. In this way, while the mandible is supported, its breathability is not affected, and the mandible will not itch or become swollen due to lack of breathability. In addition to this breathability, rotate the transmission shaft 21 from the outer end. The transmission shaft 21 drives the cylindrical gear 22 to rotate. The cylindrical gear 22 meshes with the rack 71 to make the rack 71 rise. The top of the rack 71 drives the height-adjusting seat 72 to rise. The height-adjusting seat 72 pushes the patient's mandible to rise, and the mandible drives the neck to rise, forcing the patient not to lower the head excessively. At this time, the skin on the neck will not wrinkle due to the patient's excessive head lowering. The lesions on the skin or the skin at the lesion site will not become swollen due to skin wrinkles, and will not affect the postoperative rehabilitation of the lesion site due to swelling.

[0034] It should be further noted that, as Figure 4 shown, the support tube 2 is provided with a solid part inside. The rack 71 is arranged in the support tube 2 by means of inserting along a slide rail. That is to say, the rack 71 is not suspended in the support tube 2, but the position of the rack 71 is located by means of inserting along the slide rail. When the transmission shaft 21 is rotated in the reverse direction, the rack 71 drives the height-adjusting seat 72 to descend smoothly through the above reverse transmission relationship.

[0035] In use, in addition to adjusting and restricting the patient's mandibular height through the above-mentioned adjustment methods, the patient can also wrap the protective belt 4 around the neck for one week, and then detachably connect the free end of the protective belt 4 to the support tube 2 through the magic tape 6. At this time, since the protective belt 4 is wound around the neck, it is equivalent to using the protective belt 4 to assist the height-adjusting seat 72 in supporting the mandible, providing further support to the neck. In addition, at this time, the driven gear 82 on the free end of the protective belt 4 meshes with the driving gear 81. Then, press the pressing seat 25 and push the transmission shaft 21 forcefully to move the transmission shaft 21 inward. The inner end of the transmission shaft 21 pushes the cylindrical gear 22 inward to disengage the cylindrical gear 22 from the rack 71. The inner surface of the pressing seat 25 presses on the driving pulley 241 through the rubber seat 251. At the same time, the inner end of the transmission shaft 21 quickly abuts against the positioning assembly 12. The positioning assembly 12 acts and positions the rack 71 after height adjustment. The height-adjusting seat 72 at the top of the rack 71 will not freely descend and still abuts against the mandible, continuously restricting the neck. At this time, operate the pressing seat 25 to drive the transmission shaft 21 to rotate by the pressing seat 25, and the transmission shaft 21 drives the cylindrical gear 22 to rotate. At this time, since the cylindrical gear 22 has disengaged from the rack 71, the transmission shaft 21 will not interact with the rack 71 when rotating at this time. Since the rubber seat 251 on the inner surface of the pressing seat 25 presses on the driving pulley 241 at this time, when the pressing seat 25 drives the transmission shaft 21 to rotate, it will also push the driving pulley 241 to rotate. The driving pulley 241 drives the driven pulley 242 to rotate through the conveyor belt 243, the driven pulley 242 drives the driving gear 81 to rotate, the driving gear 81 drives the driven gear 82 to rotate, the driven gear 82 drives the winding wheel to rotate, and the winding wheel winds the fine steel wire 83. The fine steel wire 83 is tightened and drags the protective pad 5 while being tightened, so that the position of the protective pad 5 on the protective belt 4 is adjusted. Since the protective belt 4 has been tied around the neck at this time, the protective pad 5 is equivalent to being adjusted at the neck position to protect the lesion site. This adjustment method can meet the adjustment and use requirements of different lesion sites of the patient. Since it is the meshing relationship between gears that completes the adjustment of the position of the protective pad 5, it avoids touching the protective pad 5 with fingers, prevents finger infection from the protective pad 5, and avoids infection of the lesion by the protective pad 5, and the operation method is more reasonable.

[0036] Since the driven gear 82 is installed with the protective belt 4, it can mesh with the driving gear 81 only when the free end of the protective belt 4 is docked on the support tube 2. Therefore, when cleaning the device, the free end of the protective belt 4 is removed from the support tube 2, and the driven gear 82 is also separated from the driving gear 81, so that the two gears are easy to be thoroughly rinsed, and the flushing efficiency will not be affected by meshing together. At the same time, since the driving gear 81 is located below the mandibular seat 3, this area is also located below the oral cavity. Since the two gears can be rinsed separately, the contamination of the respiratory area by bacteria between the gear meshing surfaces can be reduced when they are meshed again. There is no need to manually loosen the neck cover, and there is no need to manually wipe the meshing surface between the two gears.

[0037] The structure of the positioning component 12 is as follows: Figure 4 , Figure 8 As shown, a hinge groove 13 is provided on the upward curved section of the support tube 2, and the hinge groove 13 is located at the rear side of the transmission shaft 21 and the rack 71. The positioning assembly 12 includes a positioning rod 121 connected to the hinge groove 13 through a torsion spring type rotating shaft, and also includes a positioning plate 122 welded on the rear of the rack 71, and also includes a plurality of positioning grooves 123 provided on the positioning plate 122. The positioning rod 121 is V-shaped, and one end of the V-shape of the positioning rod 121 faces downward and is located on the movement path of the transmission shaft 21, and the other end of the V-shape of the positioning rod 121 faces upward and is located at the rear side of the positioning groove 123. When the transmission shaft 21 is squeezed on the outer end surface of the active pulley 241 with the rubber seat 251, in addition to pushing the cylindrical gear 22 to separate from the rack 71, it also pushes the positioning rod 121 to deflect upward, and makes one end of the positioning rod 121 press against the positioning groove 123 to limit the lifting height of the rack 71. When the pressing seat 25 is pressed to push the transmission shaft 21 backward and the rubber seat 251 is pressed on the driving pulley 241, the rear end of the transmission shaft 21 not only takes the cylindrical gear 22 away from the rack 71, but also instantly hits the V-shaped bottom end of the positioning rod 121 and pushes the bottom end of the positioning rod 121 to deflect downward. At this time, the V-shaped top end of the positioning rod 121 deflects downward and presses Figure 8 The positioning plate 122 is positioned by the positioning groove 123, and the heightened rack 71 is positioned by the positioning plate 122. Since the positioning rod 121 is connected to the hinge groove 13 through a torsion spring shaft, the torsion spring is sleeved on the shaft, one free end of the torsion spring is pressed against the V-shaped top of the positioning rod 121, and the other free end of the torsion spring is pressed against the lumen surface of the support tube 2. This use of the torsion spring is a prior art and will not be described in detail. In short, when the rear end of the transmission shaft 21 does not hit the bottom end of the positioning rod 121, the top end of the positioning rod 121 is away from the positioning groove 123. When the rear end of the transmission shaft 21 hits the bottom end of the positioning rod 121, the positioning rod 121 will deflect and the top end will be stuck in the positioning groove 123 to prevent the heightened rack 71 from falling freely.

[0038] likeFigure 2 As shown, the conveyor belt 243 is located inside the driving gear 81, and the conveyor belt 243 is also located inside the magic tape 6 on the bent portion of the support tube 2. First, the conveyor belt 243 will not be rubbed by the driving gear 81. Second, when the free end of the protective belt 4 is attached to the support tube 2, the driven gear 82 will not rub against the conveyor belt 243 either.

[0039] There are two upper and lower guide members 10 provided on the inner side surface of the protective belt 4. The upper and lower ends of the protective pad 5 are slidably fitted on the two guide members 10. A hanging ring 11 is welded on the outer side surface of the protective belt 4, and the thin steel wire 83 passes through the hanging ring 11. The setting of the two guide members 10 not only plays a role in stably guiding the protective pad 5 when the position of the protective pad 5 is adjusted, but also is used to install the protective pad 5 on the protective belt 4. An air passage 41 is provided on the protective belt 4. The setting of the air passage 41 adjusts the protective pad 5 to the lesion site, forming only a local protection effect on the lesion area, while the non-lesion area of the neck remains exposed to the atmosphere through the air passage 41 to achieve ventilation, thereby improving the comfort. Of course, when itching occurs due to the long-term covering of the lesion area by the protective pad 5, by pinching the pressure seat 25 and rotating the transmission shaft 21, the thin steel wire 83 is wound and tightened, and while tightening, the protective pad 5 is dragged, so that the protective pad 5 is adjusted to a new position along the protective belt 4, temporarily exposing the lesion for ventilation. This adjustment method, due to the meshing relationship between the gears, completes the adjustment of the position of the protective pad 5, thus avoiding finger contact with the protective pad 5, preventing finger infection of the protective pad 5, and avoiding infection of the lesion by the protective pad 5, and the operation method is more reasonable.

[0040] The above orientation references do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and is set with relative descriptions with reference to the orientations in the figure. In essence, the specific orientations of the components are based on their actual installation, actual use, and the habitual orientation descriptions of those skilled in the art. This is hereby stated.

[0041] The above specific implementation manners have further elaborated on the invention purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above is only the specific implementation manner of the present invention and is not used to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A skin protection device for radiotherapy patients, characterized in that: The invention comprises a shoulder seat (1), one end of which is provided with a support tube (2), a mandibular seat (3) is installed on the top of the support tube (2) after being bent upward, a protective belt (4) is provided on the rear side of the support tube (2), an air passage (41) is opened in the middle of the protective belt (4), the protective belt (4) is located above the shoulder seat (1), a protective pad (5) which can move along its length direction is provided on the protective belt (4), one end of the protective belt (4) is connected to the support tube (2), and the other end of the protective belt (4) is free, the end of the protective belt (4) connected to the support tube (2) and the free end of the protective belt (4) are both provided with Velcro (6), and the free end of the protective belt (4) is detachably connected to the support tube (2) through the Velcro (6) after being bent forward for one circle; the opening of the mandibular seat (3) faces upward, and a height adjustment component (7) is provided in the upward bending section of the mandibular seat (3) and the support tube (2).

2. The skin protection device for radiotherapy patients according to claim 1, characterized in that: The height adjustment component (7) comprises a rack (71) which is vertically upward and the top end of which passes through the mandibular seat (3); the top end of the rack (71) is equipped with a height adjustment seat (72) located in the mandibular seat (3); a gear component (8) is provided at the detachable connection between the free end of the protective belt (4) and the support tube (2); the gear component (8) comprises a driving gear (81) mounted on the support tube (2) and a driven gear (82) mounted on the free end of the protective belt (4); the gear component (8) also comprises a thin steel wire (83) connected between the driven gear (82) and the protective pad (5); the free end of the protective belt (4) is detachably connected to the support tube (2) through the Velcro (6), and the driven gear (82) is meshed with the driving gear (81).

3. The skin protection device for radiotherapy patients according to claim 2, characterized in that: A transmission mechanism is provided in the upward curved section of the support tube (2), the transmission mechanism comprising a transmission shaft (21) mounted on the curved portion of the support tube (2) via a bearing, a sleeve (23) fixed on the outer wall of the support tube (2), the inner end of the transmission shaft (21) passes through the sleeve (23) and enters the curved portion of the support tube (2), and is provided with a cylindrical gear (22) meshed with the rack (71), a pulley assembly (24) for switching and controlling the rotation of the driven gear (82) and the lifting and lowering of the rack (71) is provided between the sleeve (23) and the driving gear (81), and the transmission mechanism further comprises a positioning assembly (12), and when the inner end of the transmission shaft (21) is pressed against the positioning assembly (12), the positioning assembly (12) can position the height-adjusting rack (71).

4. The skin protection device for radiotherapy patients according to claim 3, characterized in that: The pulley assembly (24) includes a driving pulley (241) mounted on the sleeve (23) via a bearing, and also includes a driven pulley (242) mounted on the driving gear (81), and also includes a transmission belt (243) connected between the driving pulley (241) and the driven pulley (242). A pressure seat (25) is installed at the outer end of the transmission shaft (21). When the pressure seat (25) pushes the transmission shaft (21) to move inward, the cylindrical gear (22) at the inner end can be disengaged from the rack (71), and the inner surface of the pressure seat (25) can be pressed on the driving pulley (241). When the pressure seat (25) drives the transmission shaft (21) to move outward, the cylindrical gear (22) at the inner end can be meshed with the rack (71) again.

5. The skin protection device for radiotherapy patients according to claim 4, characterized in that: The inner end surface of the pressure seat (25) is provided with a rubber seat (251) facing the outer end of the driving pulley (241), and the outer end of the pressure seat (25) is a spherical surface.

6. The skin protection device for radiotherapy patients according to claim 5, characterized in that: The conveyor belt (243) is located on the inner side of the driving gear (81), and the conveyor belt (243) is also located on the inner side of the Velcro (6) on the curved portion of the support tube (2).

7. The skin protection device for radiotherapy patients according to claim 6, characterized in that: The height adjustment seat (72) has a shape consistent with that of the mandibular seat (3), and the height adjustment seat (72) is arranged in the mandibular seat (3) in the form of an inner lining, and both sides of the height adjustment seat (72) are in sliding contact with the inner wall surface of the mandibular seat (3).

8. The skin protection device for radiotherapy patients according to claim 7, characterized in that: The mandibular seat (3) is a mesh cover, the height adjustment seat (72) is a mesh seat, and the height adjustment seat (72) is provided with air holes that communicate with the mesh holes on the mandibular seat (3) in upper and lower directions.

9. The skin protection device for radiotherapy patients according to claim 2, characterized in that: The inner side surface of the protective belt (4) is provided with two upper and lower guide members (10), and the upper and lower ends of the protective pad (5) are slidably fitted on the two guide members (10). A hanging ring (11) is welded on the outer side surface of the protective belt (4), and the thin steel wire (83) passes through the hanging ring (11).

10. The skin protection device for radiotherapy patients according to claim 5, characterized in that: The upwardly curved section of the support tube (2) is provided with an articulated groove (13), which is located at the rear side of the transmission shaft (21) and the rack (71). The positioning assembly (12) includes a positioning rod (121) connected to the articulated groove (13) via a torsion spring-type rotating shaft, a positioning plate (122) welded to the rear of the rack (71), and a plurality of positioning grooves (123) provided on the positioning plate (122). The positioning rod (121) is V-shaped, and one end of the V-shaped positioning rod (121) faces downward and is located On the moving route of the transmission shaft (21), the other end of the V-shaped positioning rod (121) faces upward and is located at the rear side of the positioning groove (123). When the transmission shaft (21) carries the rubber seat (251) and is pressed against the outer end surface of the driving pulley (241), in addition to pushing the cylindrical gear (22) to separate from the rack (71), it also pushes the positioning rod (121) to deflect upward and makes one end of the positioning rod (121) press against the positioning groove (123) to limit the lifting height of the rack (71).

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