Mouth opening training device for head and neck tumor radiotherapy patient
By designing an adjustable-height mouth-opening training device, which provides progressive resistance and personalized adjustment, the problem of difficulty in controlling mouth opening during training for patients with head and neck tumors is solved, thus improving the safety and effectiveness of training.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU CANCER HOSPITAL
- Filing Date
- 2026-03-24
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, patients undergoing radiotherapy for head and neck tumors often find it difficult to accurately control the range and force of their mouth opening during training. Furthermore, traditional methods cannot provide personalized and progressive adjustments, which can easily lead to temporomandibular joint damage or poor training results.
An opening training device comprising an upper and lower plate sleeve was designed. The height is adjusted by a fastening component, the movable component provides progressive resistance, the telescopic connecting component adapts to different patients' oral cavity widths, and an angle ruler displays the opening angle, ensuring the accuracy and personalization of the training.
It enables precise control over the range and force of mouth opening, reduces the risk of temporomandibular joint injury, improves the adaptability and effectiveness of training, and enhances the stability and scientific nature of training.
Smart Images
Figure CN122032033A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of mouth-opening training, and more specifically, relates to a mouth-opening training device for patients undergoing radiotherapy for head and neck tumors. Background Technology
[0002] Mouth-opening exercises are crucial for preventing difficulty opening the mouth in patients undergoing radiotherapy for head and neck tumors such as nasopharyngeal carcinoma. They significantly impact the patient's later quality of life. Currently, there is no specific treatment for difficulty opening the mouth after radiotherapy; consistent exercise is the primary approach. Early intervention can effectively reduce radiotherapy side effects, decrease the incidence of radiation-induced mouth-opening difficulties, and inhibit the worsening of these difficulties, thereby improving the quality of life and reducing suffering for patients undergoing radiotherapy for nasopharyngeal carcinoma.
[0003] However, in clinical practice, patients often rely on manual assistance or simple wedge-shaped objects (such as corks or tongue depressors) for mouth-opening training. These traditional methods have several shortcomings: firstly, patients often struggle to accurately control the range and force of their mouth opening, which can easily lead to temporomandibular joint injury due to excessive force or poor training results due to insufficient force; secondly, the fixed height of simple wedge-shaped objects makes it impossible to personalize and gradually adjust them according to the patient's recovery, thus failing to meet the training needs at different stages.
[0004] In view of this, the present invention is proposed. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an opening training device for patients undergoing radiotherapy for head and neck tumors, thereby solving the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An opening training device for patients undergoing radiotherapy for head and neck tumors includes: an upper plate sleeve and a lower plate sleeve. Two fixed cylinders are provided on the upper side of the lower plate sleeve. A lifting column is slidably fitted inside the fixed cylinder. A movable column that is fixedly connected to the upper plate sleeve is slidably fitted on the lifting column. Multiple fixed slots are opened on one side of the lifting column. Fastening components corresponding to the multiple fixed slots are provided on one side of the fixed cylinder. Movable components corresponding to the movable column are provided on the lifting column. The upper plate sleeve and the lower plate sleeve are respectively movably connected to a first support rod and a second support rod. A pin is provided at the intersection of the first support rod and the second support rod. An angle ruler corresponding to the second support rod is provided on the first support rod. Both the upper plate sleeve and the plate sleeve include a first arc-shaped plate and a second arc-shaped plate, and a telescopic connection assembly is provided between the first arc-shaped plate and the second arc-shaped plate.
[0007] Optionally, the telescopic connection assembly includes an arc-shaped channel formed on the opposite side of the first arc-shaped plate and the second arc-shaped plate, a connecting plate slidably fitted in the arc-shaped channel, and an elastic low-connection assembly provided between the connecting plate and the arc-shaped channel.
[0008] Optionally, the elastic low-contact assembly includes a plurality of slots formed on one side of the connecting plate, a placement groove formed on one side of the arc-shaped channel, a spherical block that slides into the placement groove and is in low contact with the plurality of slots, and a first elastic member disposed between the spherical block and the placement groove.
[0009] Optionally, the first elastic element is a spring or an elastic telescopic rod.
[0010] Optionally, the movable component includes a groove formed on the upper side of the lifting column, a second elastic member disposed between the groove and the movable column, a slot formed on one side of the movable column, and a pin located in the slot and passing through the lifting column, wherein the bottom of the movable column is slidably fitted in the groove.
[0011] Optionally, the second elastic element is a spring or an elastic telescopic rod.
[0012] Optionally, the fastening assembly includes a threaded hole on one side of the fixed cylinder, a fastening bolt threaded into the threaded hole, and the threaded end of the fastening bolt located in the fixed groove.
[0013] Optionally, both the upper first arc-shaped plate and the lower second arc-shaped plate are connected to fixed seats on their outer sides, and both fixed seats are rotatably connected to the first support rod and the second support rod by movable connecting rods.
[0014] Optionally, both the first support rod and the second support rod have handles fixedly connected to their ends.
[0015] Optionally, both the upper and lower plate sleeves are provided with soft pads on their inner sides, the inner surface of the soft pads is provided with a soft pad layer, and the surface of the soft pads is provided with multiple massage bumps.
[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time: The fastening components allow for height adjustment and fixation of the lifting column within the fixed cylinder. When adjusting the initial height of the entire device to suit the patient's basic oral opening and closing position, loosen the fastening bolts to disengage the threaded end from its corresponding slot, allowing the lifting column to slide freely within the fixed cylinder. The patient can then adjust the lifting column to a comfortable height and tighten the fastening bolts again, re-engaging the threaded end into the corresponding slot at that height, thus fixing the lifting column relative to the fixed cylinder and providing foundational support for subsequent fine motor training. The movable components allow for the elastic movement and fixation of the movable column relative to the lifting column, providing patients with progressive mouth-opening resistance training. When the patient opens their mouth, the upper plate sleeve drives the movable column to slide upward on the lifting column. At this time, the bottom of the movable column compresses the second elastic element located in the groove. The counterforce generated by the second elastic element is the resistance that the patient needs to overcome when opening their mouth. This resistance can effectively exercise the muscles around the temporomandibular joint. When the patient needs to fix the opening width in a certain position for maintenance training, the pin can be inserted through the lifting column and into the corresponding slot on one side of the movable column, thereby limiting the sliding of the movable column and keeping the patient's mouth in the set opening state, which helps to enhance the stability of the training effect. If fixation is not required, the pin can be pulled out, and the movable column can automatically reset with the patient's mouth-closing movement under the action of the second elastic element, which is convenient for repeated training. The telescopic connecting component between the first and second arc-shaped plates allows for flexible adjustment based on the actual width of the patient's oral cavity. This enables the upper and lower plates to better fit the dental arch shapes of different patients, improving fit and comfort. Specifically, when a patient needs to adjust the width of the upper or lower plate, they can push the first and second arc-shaped plates, causing the connecting plate to slide within the arc-shaped groove. During this process, the spherical locking block abuts against different slots on the connecting plate under the action of the first elastic element, thereby fixing the relative position of the first and second arc-shaped plates. This meets the individualized needs of different patients and avoids problems such as device loosening or pressure on oral tissues during training due to size mismatch. An angle gauge mounted on the first support rod visually displays the opening angle between the first and second support rods, accurately reflecting the patient's mouth opening angle. Patients and medical staff can observe the scale on the angle gauge to monitor the current mouth opening range in real time, avoiding temporomandibular joint injury caused by blindly applying force. Simultaneously, this design allows medical staff to set personalized training target angles based on the patient's specific situation and evaluate training progress and effectiveness based on the feedback from the angle gauge, making the training process more scientific and controllable.
[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the open-mouth training device. Figure 2 This is a schematic diagram of the support rod structure; Figure 3 This is a schematic diagram of the plate sleeve structure; Figure 4 This is a schematic diagram of the connecting plate structure; Figure 5 for Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the active component structure; Figure 7 for Figure 6 Schematic diagram of the structure at point B.
[0019] The attached diagram lists the components represented by each number as follows: Upper plate sleeve 1, lower plate sleeve 2, fixed cylinder 3, lifting column 4, movable column 5, soft pad 6, first arc plate 7, second arc plate 8, connecting plate 9, arc groove 10, elastic low contact component 11, slot 1101, placement groove 1102, first elastic element 1103, spherical block 1104, movable component 12, groove 1201, second elastic element 1202, slot 1203, pin 1204, fixed groove 13, fastening component 14, threaded hole 1401, fastening bolt 1402, first support rod 15, second support rod 16, pin 17, handle 18, angle ruler 19, fixed seat 20, movable connecting rod 21.
[0020] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0021] The invention will now be described in further detail with reference to the accompanying drawings.
[0022] Please see Figure 1-7As shown, this embodiment provides an opening training device for patients undergoing radiotherapy for head and neck tumors, including: an upper plate sleeve 1 and a lower plate sleeve 2. Two fixed cylinders 3 are provided on the upper side of the lower plate sleeve 2. A lifting column 4 is slidably fitted inside the fixed cylinder 3. A movable column 5 that is fixedly connected to the upper plate sleeve 1 is slidably fitted on the lifting column 4. Multiple fixed slots 13 are provided on one side of the lifting column 4. Fastening components 14 corresponding to the multiple fixed slots 13 are provided on one side of the fixed cylinder 3. Movable components 12 corresponding to the movable column 5 are provided on the lifting column 4. The upper plate sleeve 1 and the lower plate sleeve 2 are respectively movably connected to the outer sides of the first support rod 15 and the second support rod 16. A pin 17 is provided at the intersection of the first support rod 15 and the second support rod 16. An angle ruler 19 corresponding to the second support rod 16 is provided on the first support rod 15. Both the upper plate sleeve 1 and the plate sleeve 2 include a first arc-shaped plate 7 and a second arc-shaped plate 8, and a telescopic connecting component is provided between the first arc-shaped plate 7 and the second arc-shaped plate 8.
[0023] The fastening assembly 14 allows for height adjustment and fixation of the lifting column 4 within the fixed cylinder 3. When the initial height of the overall device needs to be adjusted to suit the patient's basic oral opening and closing position, the fastening bolt 1402 is loosened, causing its threaded end to exit the corresponding fixing slot 13. At this point, the lifting column 4 can slide freely within the fixed cylinder 3. The patient can adjust the lifting column 4 to a roughly comfortable height according to their own situation, and then tighten the fastening bolt 1402 again, causing its threaded end to engage with the fixing slot 13 corresponding to that height position, thereby fixing the lifting column 4 relative to the fixed cylinder 3 and providing basic support for subsequent fine motor training. The movable component 12 enables the movable column 5 to move and be fixed relative to the lifting column 4, thus providing patients with progressive mouth-opening resistance training. When the patient opens their mouth, the upper plate sleeve 1 drives the movable column 5 to slide upward on the lifting column 4. At this time, the bottom of the movable column 5 will compress the second elastic element 1202 located in the groove 1201. The reverse force generated by the second elastic element 1202 is the resistance that the patient needs to overcome when opening their mouth. This resistance can effectively exercise the muscles around the temporomandibular joint. When the patient needs to fix the opening width in a certain position for maintenance training, the pin 1204 can be inserted through the lifting column 4 and into the corresponding slot 1203 on one side of the movable column 5, thereby restricting the sliding of the movable column 5 and keeping the patient's mouth in the set opening state, which helps to enhance the stability of the training effect. If fixation is not required, the pin 1204 can be pulled out, and the movable column 5 can automatically reset with the patient's mouth-closing action under the action of the second elastic element 1202, which is convenient for repeated training. The telescopic connecting component between the first arc-shaped plate 7 and the second arc-shaped plate 8 allows for flexible adjustment based on the actual width of the patient's oral cavity, enabling the upper plate sleeve 1 and the lower plate sleeve 2 to better fit the dental arch shape of different patients, thus improving the fit and comfort of wearing the device. Specifically, when the patient needs to adjust the width of the upper plate sleeve 1 or the lower plate sleeve 2, the first arc-shaped plate 7 and the second arc-shaped plate 8 can be pushed, causing the connecting plate 9 to slide within the arc-shaped groove 10. During this process, the spherical locking block 1104 will abut against different slots 1101 on the connecting plate 9 under the action of the first elastic element 1103, thereby fixing the relative position of the first arc-shaped plate 7 and the second arc-shaped plate 8, meeting the personalized needs of different patients, and avoiding problems such as device loosening or pressure on oral tissues during training due to size incompatibility. An angle gauge 19 mounted on the first support rod 15 visually displays the opening angle between the first support rod 15 and the second support rod 16, thus accurately reflecting the patient's mouth opening angle. Patients or medical staff can observe the scale on the angle gauge 19 to understand the current mouth opening range in real time, avoiding temporomandibular joint injury due to blind force. Simultaneously, this design allows medical staff to set personalized training target angles based on the patient's specific condition and evaluate training progress and effectiveness based on the feedback from the angle gauge, making the training process more scientific and controllable.
[0024] like Figure 4-5 As shown, the telescopic connection assembly of this embodiment includes an arc-shaped channel 10 formed on the opposite side of the first arc-shaped plate 7 and the second arc-shaped plate 8. A connecting plate 9 is slidably fitted in the arc-shaped channel 10. An elastic low-contact assembly 11 is provided between the connecting plate 9 and the arc-shaped channel 10. The elastic low-contact assembly 11 includes a plurality of slots 1101 formed on one side of the connecting plate 9, a placement slot 1102 formed on one side of the arc-shaped channel 10, a spherical block 1104 slidably fitted in the placement slot 1102 and low-contacting with the plurality of slots 1101, and a first elastic member 1103 disposed between the spherical block 1104 and the placement slot 1102. The first elastic member 1103 is a spring or an elastic telescopic rod.
[0025] When the first arc-shaped plate 7 and the second arc-shaped plate 8 slide relative to each other as the patient opens or closes their mouth, the connecting plate 9 moves accordingly within the arc-shaped channel 10. At this time, the spherical portion of the spherical locking block 1104 contacts the side of the connecting plate 9. As the connecting plate 9 moves, the spherical locking block 1104 is subjected to a compressive force from the connecting plate 9. This compressive force overcomes the elastic force of the first elastic element 1103, causing the spherical locking block 1104 to retract into the placement groove 1102. When a certain slot 1101 on the connecting plate 9 moves to a position corresponding to the placement groove 1102, the spherical locking block 1104 pops out under the restoring force of the first elastic element 1103 and embeds into the slot 1101. Inside, a stable contact relationship is formed, thereby fixing the current relative positions of the first arc plate 7 and the second arc plate 8. This design of the elastic low contact component 11 makes the device have a clear sense of the stop during the adjustment process. During training, the patient can judge the change in the mouth opening range by sensing the engagement of the spherical block 1104 with different slots 1101. At the same time, it also ensures the stability when in a fixed position and prevents accidental slippage during use. In addition, the selection of a spring or elastic telescopic rod as the first elastic element 1103 is not only easy to obtain and low in cost, but also provides a continuous and stable elastic force to ensure reliable contact between the spherical block 1104 and the slot 1101.
[0026] like Figure 6 As shown, the movable component 12 in this embodiment includes a groove 1201 formed on the upper side of the lifting column 4, a second elastic member 1202 disposed between the groove 1201 and the movable column 5, a slot 1203 formed on one side of the movable column 5, and a pin 1204 located in the slot 1203 and passing through the lifting column 4. The bottom of the movable column 5 is slidably fitted in the groove 1201. The second elastic member 1202 is a spring or an elastic telescopic rod, wherein one end is fixedly connected to the bottom inner wall of the groove 1201, and the other end is fixedly connected to the bottom of the movable column 5, providing an upward elastic support force for the movable column 5.
[0027] When the height of the movable column 5 needs to be adjusted to suit the oral cavity depth or training needs of different patients, the user can first pull out the pin 1204 to disengage it from the slot 1203. At this time, the movable column 5 will pop up a certain distance under the elastic force of the second elastic element 1202. Alternatively, the user can press the movable column 5 down as needed to compress the second elastic element 1202. After adjusting the movable column 5 to the appropriate height, the pin 1204 can be reinserted into the corresponding slot 1203 to fix the height of the movable column 5. This design of the movable component 12 allows the device to flexibly adjust the length in the vertical direction, thereby better adapting to the individual differences of different patients and improving the comfort and applicability of training. At the same time, the cooperation structure between the pin 1204 and the slot 1203 is simple and reliable, easy to operate, and can quickly complete the height adjustment and fixing process.
[0028] like Figure 7 As shown, the fastening assembly 14 in this embodiment includes a threaded hole 1401 opened on one side of the fixed cylinder 3, a fastening bolt 1402 threaded in the threaded hole 1401, and the threaded end of the fastening bolt 1402 located in the fixed groove 13.
[0029] When it is necessary to fix the mounting base 2 in the fixing groove 13 of the fixing cylinder 3, the user can first insert the mounting base 2 into the fixing groove 13 and adjust it to a suitable front-to-back position. Then, rotate the fastening bolt 1402 clockwise so that its threaded end gradually moves into the fixing groove 13 and presses against the outer wall of the mounting base 2. The mounting base 2 is fixed by the friction between the fastening bolt 1402 and the mounting base 2. This fastening method is simple to operate. It can be fixed and loosened by simply rotating the bolt. The threaded connection has good self-locking performance, which can ensure that the mounting base 2 will not loosen or shift during use, thus ensuring the stability of the overall structure of the device. At the same time, when it is necessary to adjust the front-to-back position of the mounting base 2, simply rotate the fastening bolt 1402 counterclockwise to separate its threaded end from the mounting base 2, and the mounting base 2 can be easily pushed to adjust its position. After the adjustment is completed, tighten the fastening bolt 1402 again, which greatly improves the flexibility and convenience of the device.
[0030] like Figure 1-2 As shown, in this embodiment, a fixed seat 20 is connected to the outer side of the upper first arc plate 7 and the lower second arc plate 8. The two fixed seats 20 are rotatably connected to the first support rod 15 and the second support rod 16 by a movable connecting rod 21. The ends of the first support rod 15 and the second support rod 16 are fixedly connected to handles 18.
[0031] Each movable connecting rod 21 has one end rotatably connected to the corresponding fixed seat 20 via a pin, and the other end rotatably connected to the middle area of the first support rod 15 or the second support rod 16 via a pin. This double-hinged design allows the opening and closing movements of the first support rod 15 and the second support rod 16 to be transmitted to the first arc plate 7 and the second arc plate 8 via the movable connecting rod 21 when the user holds the handle 18 and applies force. This drives the two to move away from or towards each other synchronously, thus achieving oral cavity opening and closing training for the patient. The handle 18 provides the user with a comfortable and stable grip. Its surface can be ergonomically designed with anti-slip textures or arc structures to increase friction during gripping, prevent slippage during training, and reduce hand fatigue caused by prolonged gripping, thereby improving the patient's experience and compliance during oral cavity opening training.
[0032] like Figure 3As shown, in this embodiment, both the upper sleeve 1 and the lower sleeve 2 are provided with soft pads 6 on their inner sides. The inner surface of each soft pad 6 is provided with a soft pad layer, and the surface of the soft pad is provided with multiple massage bumps. The soft pad 6 is made of skin-friendly and breathable medical-grade silicone material. Its thickness has been optimized to provide sufficient cushioning protection, preventing the upper sleeve 1 and the lower sleeve 2 from directly contacting the patient's teeth, gums, and mucous membrane tissues in the oral cavity and causing pressure or friction damage. It is also not too thick to affect the normal opening and closing angle of the training device. The soft pad layer further enhances the comfort during contact, as if it naturally conforms to the oral tissues, effectively relieving the foreign body sensation of the patient during long-term training. The multiple massage bumps distributed on the surface can gently stimulate and massage the gums, buccal mucosa, and other parts of the patient's oral cavity when the training device is opened and closed, promoting local blood circulation and reducing discomfort symptoms such as stiffness and numbness of oral tissues that may be caused by long-term radiotherapy. At the same time, it can also enhance the patient's oral perception ability to a certain extent, improving the comfort and effect of training.
[0033] Working principle: When using this head and neck tumor radiotherapy mouth opening training device, the patient first needs to adjust the width of the upper plate sleeve 1 and the lower plate sleeve 2 according to their own oral cavity width. Then, push the first arc-shaped plate 7 and the second arc-shaped plate 8 to allow the connecting plate 9 to slide within the arc-shaped groove 10. The spherical locking block 1104, under the action of the first elastic element 1103, abuts against different locking slots 1101 to fix the width and ensure the device conforms to the dental arch shape. Next, loosen the fastening bolt 1402, adjust the height of the lifting column 4 within the fixed cylinder 3 to adapt to the basic oral cavity opening and closing state, and then tighten the bolt to fix it. Afterward, the patient places the upper plate sleeve 1 and the lower plate sleeve... 2. Place it in the mouth for mouth-opening training. When opening the mouth, the upper plate sleeve 1 drives the movable column 5 to slide upward and compress the second elastic element 1202, overcoming resistance and exercising the muscles. When it is necessary to fix the opening range, insert the pin 1204 to restrict the sliding of the movable column 5. When it is not necessary to fix it, pull out the pin to repeat the training. At the same time, the first support rod 15 and the second support rod 16 rotate around the pin shaft 17 with the opening and closing of the mouth. The angle ruler 19 displays the opening and closing angle, which can be monitored in real time by the patient or medical staff. During training, the grip handle 18 transmits force through the movable connecting rod 21, and the soft pad 6 provides cushioning and massage to improve comfort and training effect.
[0034] This invention is not limited to the embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Technical aspects, shapes, and structures not described in detail in this invention are all publicly known technologies.
Claims
1. An orifice training device for patients undergoing radiotherapy for head and neck tumors, characterized in that, include: The upper plate sleeve (1) and the lower plate sleeve (2) are provided with two fixed cylinders (3) on the upper side of the lower plate sleeve (2). A lifting column (4) is slidably fitted inside the fixed cylinder (3). A movable column (5) that is fixedly connected to the upper plate sleeve (1) is slidably fitted on the lifting column (4). Multiple fixed slots (13) are opened on one side of the lifting column (4). Fastening components (14) corresponding to the multiple fixed slots (13) are provided on one side of the fixed cylinder (3). Movable components (12) corresponding to the movable column (5) are provided on the lifting column (4). The upper plate sleeve (1) and the lower plate sleeve (2) are respectively movably connected to a first support rod (15) and a second support rod (16). A pin (17) is provided at the intersection of the first support rod (15) and the second support rod (16). An angle ruler (19) corresponding to the second support rod (16) is provided on the first support rod (15). Both the upper plate sleeve (1) and the plate sleeve (2) include a first arc plate (7) and a second arc plate (8), and a telescopic connection assembly is provided between the first arc plate (7) and the second arc plate (8).
2. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, The telescopic connection assembly includes an arc-shaped channel (10) opened on the opposite side of the first arc-shaped plate (7) and the second arc-shaped plate (8), a connecting plate (9) is slidably fitted in the arc-shaped channel (10), and an elastic low contact assembly (11) is provided between the connecting plate (9) and the arc-shaped channel (10).
3. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 2, characterized in that, The elastic low-contact assembly (11) includes a plurality of slots (1101) formed on one side of the connecting plate (9), a placement slot (1102) formed on one side of the arc-shaped channel (10), a spherical block (1104) that slides into the placement slot (1102) and is low-contact with the plurality of slots (1101), and a first elastic member (1103) disposed between the spherical block (1104) and the placement slot (1102).
4. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 3, characterized in that, The first elastic element (1103) is a spring or an elastic telescopic rod.
5. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, The movable component (12) includes a groove (1201) on the upper side of the lifting column (4), a second elastic element (1202) disposed between the groove (1201) and the movable column (5), a slot (1203) on one side of the movable column (5), and a pin (1204) located in the slot (1203) and passing through the lifting column (4). The bottom of the movable column (5) is slidably fitted in the groove (1201).
6. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 5, characterized in that, The second elastic element (1202) is a spring or an elastic telescopic rod.
7. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, The fastening assembly (14) includes a threaded hole (1401) opened on one side of the fixed cylinder (3) and a fastening bolt (1402) threaded in the threaded hole (1401), the threaded end of the fastening bolt (1402) being located in the fixed groove (13).
8. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, A fixed seat (20) is connected to the outer side of the first arc plate (7) located above and the second arc plate (8) located below. A movable connecting rod (21) is rotatably connected between the two fixed seats (20) and the first support rod (15) and the second support rod (16).
9. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, The first support rod (15) and the second support rod (16) are both fixedly connected to handles (18) at their ends.
10. The orifice training device for patients undergoing radiotherapy for head and neck tumors according to claim 1, characterized in that, Both the upper plate sleeve (1) and the lower plate sleeve (2) are provided with soft pads (6) on their inner sides. The inner surface of each soft pad (6) is provided with a soft pad layer, and the surface of the soft pad is provided with multiple massage bumps.