Buccal device for radiotherapy

By setting grooves and fixing holes on the mouthpiece support plate, and using silicone rubber bite impressions to form personalized dental impressions, the problems of poor fixing accuracy and high 3D printing cost of existing finished mouthpieces are solved. This enables low-cost and rapid production of personalized mouthpieces that meet the fixing accuracy and repeatability requirements of radiotherapy.

CN223504726UActive Publication Date: 2025-11-04JIANGSU CHUNCI MEDICAL TREATMENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423087402.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-11-04
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In the existing technology of radiotherapy for head and neck tumors, there are auxiliary medical devices for personalized treatment. Existing finished mouthpieces are highly versatile but have poor fixation accuracy and repeatability. 3D printed devices are costly and have a complicated manufacturing process, which prolongs the treatment cycle.

Method used

Design a mouthpiece comprising an upper support plate and a lower support plate. By setting grooves and fixing holes on the support plates, a personalized dental impression is formed using silicone rubber bite marks, achieving unique fixation precision and repeatability.

Benefits of technology

It achieves personalized fixation accuracy and repeatability, reduces manufacturing costs, simplifies the manufacturing process, and is suitable for radiotherapy treatments with high precision and high repeatability requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of medical equipment, and particularly relates to a mouth holding device for radiotherapy, which comprises an upper support plate and a lower support plate, two sides of the upper support plate and the lower support plate are connected through arc-shaped plates, grooves are arranged on the end faces of the upper side face of the upper support plate and the lower side face of the lower support plate, and the arc-shaped plates are arranged in the grooves. A fixing hole is formed in the bottom of the groove, and the rear side of the lower supporting plate extends backwards to form a tongue depressor. The mouth holding device is high in universality, rapid in personalized manufacturing and low in cost, and meets the requirements of radiotherapy for fixing precision and repeatability.
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Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a mouthpiece for radiotherapy. Background Technology

[0002] Radiotherapy, or radiotherapy-based comprehensive treatment, is a fundamental principle in the treatment of head and neck tumors in modern medicine. More than 70% of head and neck malignant tumors require radiotherapy during their treatment. Radiotherapy mouthpieces are oral positioning aids for head and neck tumor radiotherapy. They can be used in conjunction with thermoformed meshes for the head, neck, and shoulders to fix the patient's position, improving the fixation accuracy and repeatability of the upper and lower jaws and tongue. Furthermore, depending on the location of the tumor in the head and neck, normal tissue can be fixed as far away from the target area as possible to reduce adverse reactions such as oral mucositis, taste disturbances, and dry mouth.

[0003] There are many types of mouthpieces in existing technologies, most of which are pre-made. Pre-made mouthpieces are highly versatile, but their fixation precision is poor and repeatability is not good. With the development of 3D printing technology, there are more and more assistive medical devices for personalized treatment, and the production of personalized mouthpieces has become possible. However, 3D printed assistive medical devices are expensive, have a complicated manufacturing process, and a long cycle, which not only increases the treatment cost for patients but also prolongs the treatment period and increases the patient's suffering. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a mouthpiece for radiotherapy that is highly versatile, quick to customize, and low in cost, meeting the requirements of radiotherapy for fixation accuracy and repeatability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A mouthpiece for radiotherapy, comprising an upper support plate and a lower support plate, wherein the two sides of the upper support plate and the lower support plate are connected by an arc-shaped plate, and grooves are provided on the upper side of the upper support plate and the lower side of the lower support plate, wherein a fixing hole is provided at the bottom of the grooves, and a tongue depressor extends rearward from the rear side of the lower support plate.

[0006] Furthermore, the fixing holes are evenly distributed within the groove.

[0007] Furthermore, a handle extends forward from the front side of the lower support plate.

[0008] Furthermore, a notch is gradually formed on the front side of the arc-shaped plate from the top and bottom ends toward the middle.

[0009] Furthermore, the width of the upper support plate and the lower support plate from front to back is 3-8cm.

[0010] Furthermore, the length of the tongue depressor is 5-8 cm.

[0011] Furthermore, the mouthpiece is integrally molded.

[0012] This invention relates to a mouthpiece for radiotherapy. Grooves 4 and fixing holes 5 are provided on the upper and lower surfaces of a support plate for placing and fixing silicone rubber. The patient bites into the silicone rubber to create an imprint. After the silicone rubber dries and solidifies, a unique mouthpiece is formed, perfectly adapted to the patient. The unique tooth marks ensure fixation accuracy, and both reusability and reusability accuracy are excellent. Furthermore, this mouthpiece is both versatile and, through a simple manufacturing process, can meet individual needs, making it ideal for radiotherapy treatments requiring high fixation accuracy and repeatability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the oral cavity for radiotherapy according to this utility model;

[0014] Figure 2 Another view of the mouthpiece;

[0015] Figure 3 Another view of the mouthpiece;

[0016] In the above diagram: 1-Upper support plate; 2-Lower support plate; 3-Arc-shaped plate; 4-Groove; 5-Fixing hole; 6-Tongue depressor; 7-Handle. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0018] There are many types of mouthpieces in existing technologies, most of which are pre-made. Pre-made mouthpieces are highly versatile, but their fixation precision is poor and repeatability is not good. With the development of 3D printing technology, there are more and more assistive medical devices for personalized treatment, and the production of personalized mouthpieces has become possible. However, 3D printed assistive medical devices are expensive, have a complicated manufacturing process, and a long cycle, which not only increases the treatment cost for patients but also prolongs the treatment period and increases the patient's suffering.

[0019] To address the aforementioned problems, this invention provides a mouthpiece for radiotherapy, such as... Figure 1 As shown, it includes an upper support plate 1 and a lower support plate 2. Both sides of the upper support plate 1 and the lower support plate 2 are connected by an arc-shaped plate 3. Grooves 4 are provided on the end faces of the upper side of the upper support plate 1 and the lower side of the lower support plate 2. Fixing holes 5 are provided at the bottom of the grooves 4. A tongue depressor 6 extends rearward from the rear side of the lower support plate 2.

[0020] In this embodiment, both sides of the upper support plate 1 and the lower support plate 2 are connected by arc-shaped plates 3 to form the main body of a "mouth-shaped" mouthpiece for placing in the patient's mouth to support the oral cavity. At the same time, grooves 4 are provided on the upper end face of the upper support plate 1 and the lower end face of the lower support plate 2. Fixing holes 5 are provided at the bottom of the grooves 4. The grooves 4 are designed to place silicone rubber, and the fixing holes 5 are provided to fix the silicone rubber placed in the grooves 4. Silicone rubber is often used in dentistry for dental impressions. The present utility model exactly utilizes the silicone rubber to take impressions of the patient's teeth.

[0021] When in use, select a mouthpiece of appropriate size for the patient, place an appropriate amount of silicone rubber in the grooves 4 of the upper and lower support plates respectively. At this time, put the mouthpiece into the patient's mouth and fix the tongue with a tongue depressor 6. At this time, when the patient bites tightly on the mouthpiece, tooth imprints will be left on the silicone rubber, forming a unique and completely suitable tooth mark for the patient himself. Subsequently, the patient opens his mouth wide and takes out the mouthpiece. After the silicone rubber dries and forms, a mouthpiece that is completely adapted to the patient and has very perfect fixing accuracy and repeatability can be formed.

[0022] The mouthpiece for radiotherapy of the present utility model is provided with grooves 4 and fixing holes 5 on the upper and lower end faces of the support plate for placing and fixing silicone rubber. By the patient biting the tooth marks on the silicone rubber and after the silicone rubber dries and forms, a unique mouthpiece that is completely adapted to the patient himself is formed. The unique tooth mark ensures the fixing accuracy, and the reusability and reuse accuracy are very good. And the above-mentioned mouthpiece not only has universality, but can also meet the personalized requirements through a simple production process, and is very suitable for application in the radiotherapy treatment process with high requirements for fixing accuracy and repeatability.

[0023] Furthermore, the fixing holes 5 are evenly arranged in the grooves 4, which can evenly fix the silicone rubber in the grooves 4 and prevent the silicone rubber from shifting when demolding from the teeth.

[0024] Furthermore, a handle 7 extends forward from the front side of the lower support plate 1, which is convenient for doctors to pick up and place the mouthpiece.

[0025] Furthermore, on the front side of the arc-shaped plate 3, a notch is gradually formed from the upper and lower ends towards the middle. Such a setting makes the shape of the whole mouthpiece more conform to the shape when the mouth is opened, and can make the wearing comfortable.

[0026] Furthermore, the width of the upper support plate 1 and the lower support plate 2 from front to back is 3-8cm, and the length of the tongue depressor 6 is 5-8cm. Setting the upper support plate 1 and the lower support plate 2 wider increases the versatility of the mouthpiece. Because different patients have different tongue lengths, when a patient has a longer tongue, the mouthpiece can be placed further into the mouth; when a patient has a shorter tongue, the mouthpiece can be placed shallower. This allows for the completion of dental impressions in both extreme cases, increasing versatility.

[0027] Furthermore, the mouthpiece is molded in one piece, making the entire mouthpiece more robust and reliable, and meeting the requirements for repeatability.

[0028] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A mouthpiece for radiotherapy, characterized in that, It includes an upper support plate and a lower support plate. Both sides of the upper support plate and the lower support plate are connected by arc-shaped plates. Grooves are provided on the upper surface of the upper support plate and the lower surface of the lower support plate. Fixing holes are provided at the bottom of the grooves. A pressure tongue plate extends rearward from the rear side of the lower support plate.

2. The oral device for radiotherapy according to claim 1, characterized in that, The fixing holes are evenly distributed within the groove.

3. The oral device for radiotherapy according to claim 2, characterized in that, A handle extends forward from the front side of the lower support plate.

4. The mouthpiece for radiotherapy according to claim 3, characterized in that, The front side of the arc-shaped plate gradually forms a notch from the top and bottom ends toward the middle.

5. The oral device for radiotherapy according to claim 4, characterized in that, The width of the upper support plate and the lower support plate from front to back is 3-8cm.

6. The mouthpiece for radiotherapy according to claim 5, characterized in that, The length of the tongue depressor is 5-8cm.

7. The mouthpiece for radiotherapy according to claim 6, characterized in that, The mouthpiece is integrally molded.