Multifunctional oral cavity positioning support for tumor radiotherapy
By designing a multifunctional oral positioning bracket, using an adjustable bracket structure and deformable filling block, the problem of insufficient adaptation of oral positioning brackets to different oral sizes in the prior art is solved, achieving better fixation effect and operational convenience.
Patent Information
- Application Number
- CN202411941955.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the oral positioning stent used for head and neck radiotherapy is insufficiently adapted to patients of different oral sizes, has poor fixation effect, and is inconvenient to operation.
A multi-functional oral positioning bracket is designed, including a bracket body and a filler. The bracket body is composed of a lower bracket, an upper bracket, a rotating sleeve and a lifting screw. The position of the lifting screw is adjusted by rotating the rotating sleeve, and the spacing between the lower bracket and the upper bracket is adjusted to accommodate different oral sizes. It is also equipped with a deformable filling block and a tongue pressing plate to achieve the fixation of the tongue.
The device can easily adjust the size of the oral opening and tongue fixation, and is suitable for different patients. It is simple to use and has good fixation effect, which reduces damage to normal tissues and improves the accuracy and repetition of radiotherapy.
Smart Images
Figure CN119607443A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of oral brackets, in particular to a multifunctional oral positioning bracket for tumor radiotherapy. Background Art
[0002] Oral radiotherapy is an important component of the comprehensive treatment of head and neck malignancies, playing a particularly crucial role in the treatment of oral cancer and nasopharyngeal carcinoma. During radiotherapy, precise dose control and positioning are crucial for effective treatment. At the same time, maximal protection of surrounding normal tissue is essential to minimize radiotherapy-induced complications, such as oral mucositis, xerostomia, radiation-induced caries, taste changes, limited mouth opening, and osteoradionecrosis. These complications can significantly impact patients' quality of life and treatment tolerance. During oral radiotherapy, oral positioning braces are commonly used to improve treatment accuracy and reproducibility while minimizing damage to normal tissue. These braces can effectively restrict movement of various parts of the oral cavity, physically displacing adjacent tissues away from the tumor. This is a simple and effective method for minimizing oral adverse reactions caused by radiotherapy. Furthermore, positioning braces prevent spatial movement between the maxillary and mandibular bones, ensuring precise, stable, and reproducible positioning of the mandible throughout the radiotherapy cycle. Currently, simple mouthpieces, such as open-mouth bottles and tongue depressors, are often used in clinical practice for head and neck radiotherapy positioning. These methods struggle to ensure repeatable positioning of the upper and lower jaws and tongue, offer poor comfort, and lack individualization. Furthermore, because these mouthpieces do not conform to the patient's oral size, they can lead to unstable occlusion, hindering the physician's ability to perform radiotherapy.
[0003] Some patients who can afford it choose to undergo a customized mouthpiece before surgery. This involves taking a bite mold and collecting a model of the patient's mouth. This model is then used to create a personalized mouthpiece on the device, which is then demolded. This process is similar to making dentures, and most hospitals are unable to perform this procedure independently. The average timeline is long and the cost is high. Currently, it takes about a week from the time the patient has their bite molded in to the time the model is retrieved.
[0004] The radiotherapy mouthpiece in the above-mentioned prior art is not sufficiently adaptable to patients with different mouth sizes, has a poor fixation effect during treatment, and is inconvenient to operate.
[0005] Therefore, we propose a multifunctional oral positioning bracket for tumor radiotherapy to solve the above problems.
[0006] The above information disclosed in this background technology is only for enhancing understanding of the background technology of the present invention and therefore it may contain information that does not constitute the prior art that is already known to a person of ordinary skill in the art. Summary of the Invention
[0007] The purpose of the present invention is to provide a multifunctional oral positioning bracket for tumor radiotherapy to solve the problems raised in the above background technology, such as insufficient adaptability to patients with different oral sizes, poor fixation effect during treatment, and inconvenient operation.
[0008] To achieve the above-mentioned objectives, the present invention provides a multifunctional oral positioning bracket for tumor radiotherapy, including a bracket body, the bracket body including two mutually connected lower brackets and an upper bracket, the upper surface of the lower bracket is installed with a rotating seat, the rotating seat is rotatably connected to a rotating sleeve, the inner wall of the rotating sleeve is threadedly connected to a lifting screw, the lower surface of the upper bracket is installed with a connecting seat, the lifting screw is fixedly connected to the connecting seat, and a channel is left between the upper bracket and the lower bracket; a filling piece includes a lower filling groove opened on the lower bracket, an upper filling groove is opened on the upper bracket, and filling blocks are provided in the lower filling groove and the upper filling groove; the upper surface of the lower bracket is also connected to a tongue depressor.
[0009] Preferably, a mounting tube is provided on the upper surface of the lower bracket, the tongue depressor is slidably connected to the mounting tube, and a limiting block is provided at the bottom end of the tongue depressor.
[0010] Preferably, a mounting groove is provided on the upper surface of the lower bracket, a rotating shaft is provided in the mounting groove, a rotating plate is provided on the lower surface of the mounting tube, the rotating plate is rotatably connected to the rotating shaft, and the mounting tube is rotatably connected to the mounting groove.
[0011] Preferably, a fixing plate is further provided in the installation groove, the fixing plate is rotatably connected to a threaded rod, the threaded rod is movably connected to a movable block, and a guide block is provided on the lower surface of the installation cylinder.
[0012] Preferably, the movable block and the guide block are both trapezoidal block structures, the movable block moves along the axis of the threaded rod, and the movable block and the guide block are both arranged at one end of the threaded rod away from the rotating shaft.
[0013] Preferably, one end of the threaded rod away from the rotating shaft passes through the lower bracket, and one end of the threaded rod extending out of the lower bracket is further provided with a paddle.
[0014] Preferably, the filling block is made of deformable material, and the filling block is divided into a lower filling block and an upper filling block. The lower filling block is plugged into the lower filling slot, and the upper filling block is plugged into the upper filling slot. A slot that matches the installation slot is provided on the top of the lower filling block.
[0015] Preferably, a cooling component is further included, wherein the cooling component includes an upper cooling bag sleeved on the upper bracket, a lower cooling bag sleeved on the lower bracket, and a hose is provided between the upper cooling bag and the lower cooling bag.
[0016] Preferably, the lower cooling bag is also provided with a notch adapted to the mounting groove, and the upper cooling bag is provided with a liquid inlet and a liquid outlet.
[0017] Preferably, a middle partition is provided in the middle of the upper cooling bag, and two hoses are symmetrically provided about the middle partition. The middle partition divides the upper cooling bag into two cavities, the two cavities are isolated from each other, and the liquid inlet and the liquid outlet are respectively connected to the two cavities.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] The present invention is provided with a lower bracket, an upper bracket, a rotating sleeve and a lifting screw. Before use, the two rotating sleeves are rotated first to lower the lifting screw to the lowest position. At this time, the distance between the lower bracket and the upper bracket is reduced to the minimum. At this time, the device is inserted into the patient's mouth, and the patient's teeth bite on the filling blocks of the lower bracket and the upper bracket. At this time, the two sleeves are rotated in the opposite direction to increase the distance between the lower bracket and the upper bracket until the patient's mouth is fully opened. At this time, the end of the tongue depressor is pressed and the tongue depressor is pressed into the patient's oral cavity until the patient's tongue is tightly pressed. Treatment can be performed through the middle channel. According to the different sizes of the oral cavity of different patients, the opening size of the device can be conveniently adjusted. At the same time, the length of the tongue depressor can be adjusted to achieve oral opening and tongue fixation for different patients. It is easy and simple to use and does not require complicated operations.
[0020] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;
[0023] Figure 3 This is a formal schematic diagram of the present invention;
[0024] Figure 4 For the present invention Figure 3 AA cross-sectional diagram;
[0025] Figure 5 It is a schematic diagram of a half-section structure of the present invention;
[0026] Figure 6 It is a cross-sectional schematic diagram of the middle partition, liquid inlet and liquid outlet of the present invention.
[0027] In the figure: 1. Bracket body; 11. Lower bracket; 12. Upper bracket; 13. Rotating seat; 14. Rotating sleeve; 15. Lifting screw; 16. Connecting seat; 17. Channel; 2. Filling piece; 21. Lower filling groove; 22. Lower filling block; 23. Upper filling groove; 24. Upper filling block; 3. Tongue depressor; 31. Mounting cylinder; 32. Limiting block; 33. Mounting groove; 34. Rotating shaft; 35. Rotating plate; 36. Fixed plate; 37. Threaded rod; 38. Movable block; 39. Guide block; 4. Cooling piece; 41. Upper cooling bag; 42. Lower cooling bag; 43. Middle partition; 44. Hose. DETAILED DESCRIPTION
[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any sizes are only illustrative and not restrictive.
[0029] Example 1
[0030] See also Figure 1 and Figure 2 , a multifunctional oral positioning bracket for tumor radiotherapy, comprising:
[0031] The bracket body 1 includes two interconnected lower brackets 11 and an upper bracket 12. A rotating seat 13 is installed on the upper surface of the lower bracket 11. The rotating seat 13 is rotatably connected to the rotating sleeve 14. The inner wall of the rotating sleeve 14 is threadedly connected to the lifting screw 15. A connecting seat 16 is installed on the lower surface of the upper bracket 12. The lifting screw 15 is fixedly connected to the connecting seat 16. A channel 17 is left between the upper bracket 12 and the lower bracket 11; the filling piece 2 includes a lower filling groove 21 opened on the lower bracket 11, an upper filling groove 23 is opened on the upper bracket 12, and filling blocks are provided in the lower filling groove 21 and the upper filling groove 23; the upper surface of the lower bracket 11 is also connected to the tongue depressor 3.
[0032] The lower bracket 11 and the upper bracket 12 are arc-shaped, and the shape roughly adapts to the shape of teeth. The lower bracket 11 and the upper bracket 12 are symmetrical to each other. The rotating seat 13 is arranged at both ends of the lower bracket 11, and each rotating seat 13 is symmetrically arranged. The rotating seat 13 of the lower bracket 11 is coaxial with the rotating sleeve 14, and the lifting screw 15 is coaxial with the rotating seat 13. By rotating the rotating sleeve 14, the lifting screw 15 can be lifted upward, thereby increasing the distance between the upper bracket 12 and the lower bracket 11, and the two rotating sleeves 14 can be lifted to a fixed height to adapt to different situations, so that the device can be adapted to various people and is easy to use.
[0033] See also Figure 2 The upper surface of the lower bracket 11 is provided with a mounting tube 31, the tongue depressor 3 is slidably connected to the mounting tube 31, and a limit block 32 is provided at the bottom end of the tongue depressor 3. The tongue depressor 3 and the mounting tube 31 are interference fit, and the tongue depressor 3 can be pulled out when not in use. The limit plate is used to limit the tongue depressor 3 from falling off. It extends inward when in use, and the length of the extension can be controlled, so that tongues of different lengths can be compressed, even if the tongue is broken after surgical treatment.
[0034] Operation process: Before use, rotate the two rotating sleeves 14 to lower the lifting screw 15 to the lowest position. At this time, the distance between the lower bracket 11 and the upper bracket 12 is reduced to the minimum. At this time, insert the device into the patient's mouth, and the patient's teeth bite on the filling blocks of the lower bracket 11 and the upper bracket 12. At this time, rotate the two sleeves in the opposite direction to increase the distance between the lower bracket 11 and the upper bracket 12 until the patient's mouth is fully opened. At this time, press the end of the tongue depressor 3 and press the tongue depressor 3 into the patient's oral cavity until the patient's tongue is pressed tightly, and treatment can be performed through the middle channel 17.
[0035] Example 2
[0036] See also Figure 4 , this embodiment also provides:
[0037] The upper surface of the lower bracket 11 is provided with a mounting groove 33, and a rotating shaft 34 is provided in the mounting groove 33. A rotating plate 35 is provided on the lower surface of the mounting cylinder 31. The rotating plate 35 is rotatably connected to the rotating shaft 34, and the mounting cylinder 31 is rotatably connected to the mounting groove 33. The mounting cylinder 31 is a hollow rectangular cylinder structure. The tongue depressor 3 is slidably connected to the mounting cylinder 31, and the rotating shaft 34 is fixedly connected to the lower bracket 11. The rotating plate 35 is arranged at one end of the mounting cylinder 31 close to the patient's throat. By arranging the rotating plate 35 and the rotating shaft 34, when the tongue depressor 3 is used, the end of the mounting cylinder 31 away from the patient's throat can be lifted, so that the top of the tongue depressor 3 is tilted downward, which can better press the patient's tongue, apply greater pressing force, and prevent the patient's tongue from moving.
[0038] See also Figure 4 A fixing plate 36 is also provided in the mounting groove 33, and the fixing plate 36 is rotatably connected to a threaded rod 37, and the threaded rod 37 is movably connected to a movable block 38. A guide block 39 is provided on the lower surface of the mounting cylinder 31. The fixing plate 36 is used to install the threaded rod 37, and one end of the threaded rod 37 is rotatably connected to the fixing plate 36, and the other end is rotatably connected to the lower bracket 11. The guide block 39 is provided on the lower surface of the end of the mounting cylinder 31 away from the patient's throat. The rotation of the threaded rod 37 drives the movable block 38 to move along the axis direction of the threaded rod 37. The movable block 38 moves to contact the guide block 39, thereby lifting the mounting cylinder 31.
[0039] See also Figure 4 and Figure 5 The movable block 38 and the guide block 39 are both trapezoidal block structures. The movable block 38 moves along the axial direction of the threaded rod 37. The movable block 38 and the guide block 39 are both arranged at the end of the threaded rod 37 away from the rotating shaft 34. The inclined surface of the movable block 38 is opposite to the inclined surface of the guide block 39, and the mounting cylinder 31 is gradually lifted up through the inclined surface, so that the inclination angle of the mounting cylinder 31 can be controlled according to the number of turns of the rotating threaded rod 37, and it can stop at any angle.
[0040] See also Figure 5 The end of the threaded rod 37 away from the rotating shaft 34 passes through the lower bracket 11, and the end of the threaded rod 37 extending out of the lower bracket 11 is also provided with a paddle. By providing the paddle, the threaded rod 37 can be conveniently rotated from the outside to facilitate controlling the inclination of the mounting tube 31.
[0041] The filling block is made of deformable material, and is divided into a lower filling block 22 and an upper filling block 24. The lower filling block 22 is plugged into the lower filling groove 21, and the upper filling block 24 is plugged into the upper filling groove 23. A groove is provided on the top of the lower filling block 22 to match the mounting groove 33. By setting a deformable filling block, when the patient bites the filling block, it can better contact the patient's teeth, ensuring that each tooth is in contact with the filling block and can adapt to different teeth. The grooves in the lower filling block 22 are used to adapt to components such as the mounting cylinder 31, the rotating shaft 34, the threaded rod 37, and the movable block 38.
[0042] Operation process: When using, first adjust the distance between the lower bracket 11 and the upper bracket 12, and extend the tongue depressor 3 into the patient's mouth until the tongue depressor 3 reaches a position where it can press the tongue. Since the device is mounted on the patient's teeth at a certain height, the tongue depressor 3 may not be able to press the patient's tongue tightly. At this time, rotate the paddle, and the paddle drives the threaded rod 37 to rotate. When the threaded rod 37 rotates, it drives the movable block 38 to move toward the guide block 39. The movable block 38 lifts the mounting cylinder 31 through the guide block 39, so that the top of the tongue depressor 3 tilts downward to press the tongue.
[0043] Example 3
[0044] See also Figure 3 and Figure 5 , this embodiment also provides:
[0045] It also includes a cooling component 4, which includes an upper cooling bag 41 mounted on the upper bracket 12, a lower cooling bag 42 mounted on the lower bracket 11, and a hose 44 provided between the upper cooling bag 41 and the lower cooling bag 42. The upper cooling bag 41 and the lower cooling bag 42 can be filled with cooling liquid, ice cubes or other cooling media, thereby cooling the patient's mouth. Both ends of the hose 44 are connected to the upper cooling bag 41 and the lower cooling bag 42 at the same time, which can make the media in the upper cooling bag 41 and the lower cooling bag 42 flow and make the temperature more uniform.
[0046] See also Figure 5 and Figure 6 The lower cooling bag 42 is also provided with a notch that is compatible with the mounting groove 33, and the upper cooling bag 41 is provided with a liquid inlet and a liquid outlet. The notch is used for the threaded rod 37 to extend and avoid the mounting tube 31, the fixing plate 36 and other structures. By setting the liquid inlet and the liquid outlet, the medium in the upper cooling bag 41 and the lower cooling bag 42 can be kept flowing and low-temperature medium can be injected in real time during treatment to maintain the cooling effect.
[0047] See also Figure 6 A middle partition 43 is provided in the middle of the upper cooling bag 41, and two hoses 44 are symmetrically provided about the middle partition 43. The middle partition 43 divides the upper cooling bag 41 into two cavities. The two cavities are isolated from each other, and the liquid inlet and the liquid outlet are connected to the two cavities respectively. By setting the middle partition 43, the medium must enter from one side of the upper cooling bag 41, and then flow into the lower cooling bag 42 through the hose 44, and then be drawn from the lower cooling bag 42 through another hose 44 into the other side of the upper cooling bag 41, and finally be drawn out, so that the medium can be better circulated and the temperature can be kept uniform.
[0048] Operation process: When in use, it is connected to the external low-temperature medium through the liquid inlet, and the discharge port is used to recover the medium. During the treatment process, the low-temperature medium is continuously injected into the upper cooling bag 41 through the liquid inlet, and the low-temperature medium enters the lower cooling bag 42 through the hose 44. Under the action of pressure, it fills the entire lower cooling bag 42, and then is sent to the other side of the upper cooling bag 41 from another hose 44, thereby filling the upper cooling bag 41 and the lower cooling bag 42. Finally, it is discharged from the discharge port, which can continuously cool the inside of the patient's mouth.
[0049] All standard parts used in the present invention can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connections adopt conventional connection methods in the prior art and will not be described in detail here. Any matters not described in detail in this specification belong to the prior art known to professionals in this field.
[0050] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.
[0051] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0052] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0053] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0054] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A multifunctional oral positioning bracket for tumor radiotherapy, characterized in that: The invention comprises a support body (1), wherein the support body (1) comprises two interconnected lower supports (11) and an upper support (12); a rotating seat (13) is mounted on the upper surface of the lower support (11); the rotating seat (13) is rotatably connected to a rotating sleeve (14); a lifting screw (15) is threadedly connected to the inner wall of the rotating sleeve (14); a connecting seat (16) is mounted on the lower surface of the upper support (12); the lifting screw (15) is fixedly connected to the connecting seat (16); and a channel (17) is reserved between the upper support (12) and the lower support (11); The filling member (2) comprises a lower filling groove (21) formed on the lower bracket (11), an upper filling groove (23) formed on the upper bracket (12), and filling blocks are provided in the lower filling groove (21) and the upper filling groove (23); The upper surface of the lower bracket (11) is also connected to a tongue depressor (3).
2. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 1, characterized in that: The upper surface of the lower bracket (11) is provided with a mounting tube (31), the tongue depressor (3) is slidably connected to the mounting tube (31), and a limit block (32) is provided at the bottom end of the tongue depressor (3).
3. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 2, characterized in that: The upper surface of the lower bracket (11) is provided with a mounting groove (33), a rotating shaft (34) is arranged in the mounting groove (33), a rotating plate (35) is arranged on the lower surface of the mounting tube (31), the rotating plate (35) is rotatably connected to the rotating shaft (34), and the mounting tube (31) is rotatably connected to the mounting groove (33).
4. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 3, characterized in that: A fixing plate (36) is also provided in the installation groove (33), the fixing plate (36) is rotatably connected to a threaded rod (37), the threaded rod (37) is movably connected to a movable block (38), and a guide block (39) is provided on the lower surface of the installation cylinder (31).
5. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 4, characterized in that: The movable block (38) and the guide block (39) are both trapezoidal block structures. The movable block (38) moves along the axis direction of the threaded rod (37). The movable block (38) and the guide block (39) are both arranged at one end of the threaded rod (37) away from the rotating shaft (34).
6. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 5, characterized in that: One end of the threaded rod (37) away from the rotating shaft (34) passes through the lower bracket (11), and one end of the threaded rod (37) extending out of the lower bracket (11) is also provided with a paddle.
7. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 6, characterized in that: The filling block is made of a deformable material and is divided into a lower filling block (22) and an upper filling block (24). The lower filling block (22) is plugged into and matched with the lower filling groove (21), and the upper filling block (24) is plugged into and matched with the upper filling groove (23). A groove matching the mounting groove (33) is provided on the top of the lower filling block (22).
8. A multifunctional oral positioning bracket for tumor radiotherapy according to claim 1 or 7, characterized in that: It also comprises a cooling component (4), the cooling component (4) comprising an upper cooling bag (41) sleeved on the upper bracket (12), a lower cooling bag (42) sleeved on the lower bracket (11), and a hose (44) provided between the upper cooling bag (41) and the lower cooling bag (42).
9. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 8, characterized in that: The lower cooling bag (42) is also provided with a notch adapted to the mounting groove (33), and the upper cooling bag (41) is provided with a liquid inlet and a liquid outlet.
10. The multifunctional oral positioning bracket for tumor radiotherapy according to claim 9, characterized in that: A middle partition (43) is provided in the middle of the upper cooling bag (41), and two hoses (44) are symmetrically provided about the middle partition (43). The middle partition (43) divides the upper cooling bag (41) into two cavities, the two cavities are isolated from each other, and the liquid inlet and the liquid outlet are respectively connected to the two cavities.