A device for mouth opening exercise after head and neck tumor radiotherapy

Abstract

The utility model relates to mouth opening exercise device technical field, concretely is a kind of head and neck tumor post-radiotherapy mouth opening exercise device, it includes: connecting mechanism, the connecting mechanism includes the fixed block of fixed connection in the outer wall of movable plate upper end, the fixed block one side upper end is fixedly connected with second connecting shaft, the outer wall movable connection of second connecting shaft one side is limited to board, the limited board is opened in the limited slot, the fixed block lower end is equipped with installation slot, the fixed block one side is opened in second screw groove, the inner wall one side screw connection of second screw groove is limited to block. The utility model solves the mouth opening exercise device of existing adoption integrated design, installation block and main part fixed connection, cannot be disassembled and separated, so that device is difficult to completely wash and disinfect, there is serious cross-infection risk, and when damage or ageing appears, only can be scrapped as a whole, increase the use cost of patient's problem.

Description

Technical Field

[0001] This utility model relates to the technical field of mouth opening exercise devices, specifically a mouth opening exercise device for patients undergoing radiotherapy for head and neck tumors. Background Technology

[0002] During the rehabilitation process following radiotherapy for tumors, head and neck patients often experience difficulty opening their mouths due to soft tissue fibrosis and muscle stiffness caused by radiotherapy. The mouth opening exercise device is a rehabilitation training device specifically designed for patients undergoing radiotherapy for head and neck tumors. This device primarily assists patients in mouth opening training after radiotherapy. Through targeted exercises, it effectively prevents and alleviates problems such as difficulty opening the mouth and temporomandibular joint dysfunction caused by radiotherapy, helping patients restore normal oral function, improve their quality of life, and playing a vital role in the rehabilitation process of head and neck tumor patients.

[0003] Traditional mouth-opening exercise devices used after radiotherapy for head and neck tumors have significant drawbacks. Most existing devices employ an integrated design, with the mounting block fixedly connected to the main body, making disassembly impossible. This leads to difficulties in thorough cleaning and disinfection during use, and prolonged use can result in the growth of bacteria on the surface and inside the device, posing a serious risk of cross-infection and a potential threat to patient health. Furthermore, if a component is damaged or worn out, the entire device must be scrapped because it cannot be disassembled and replaced, resulting in resource waste, increased costs for patients, and limitations on the device's lifespan and ease of maintenance, failing to meet the hygiene and maintainability requirements of clinical rehabilitation training. Therefore, we propose a new mouth-opening exercise device for post-radiotherapy treatment of head and neck tumors. Utility Model Content

[0004] One of the technical problems this application aims to solve is that existing mouth-opening exercise devices adopt an integrated design, with the mounting block fixedly connected to the main body and unable to be disassembled. This makes it difficult to thoroughly clean and disinfect the device, posing a serious risk of cross-infection. Furthermore, when the device is damaged or aged, it can only be scrapped as a whole, increasing the cost of use for patients.

[0005] To address the aforementioned technical problems, this application provides a mouth-opening exercise device after radiotherapy for head and neck tumors, comprising a fixing plate, with a first connecting shaft fixedly connected to both sides of the fixing plate. A movable plate is movably connected to one side of the outer wall of the first connecting shaft. A connecting mechanism is fixedly connected to the upper outer wall of one side of the movable plate. The connecting mechanism includes a fixing block fixedly connected to the upper outer wall of the movable plate. A second connecting shaft is fixedly connected to the upper end of one side of the fixing block. A limiting plate is movably connected to the outer wall of one side of the second connecting shaft. A limiting groove is formed on the limiting plate. An installation groove is formed at the lower end of the fixing block. A second threaded groove is formed on one side of the fixing block. A limiting block is threadedly connected to one side of the inner wall of the second threaded groove. An installation block is movably connected to the outer wall of one side of the movable plate. A third threaded groove is formed on the upper outer wall of the installation block.

[0006] In some embodiments, a first threaded groove is provided on one side of the inner wall of the fixing plate, a connector is movably connected to one side of the outer wall of the fixing plate, a threaded rod is fixedly connected to one side of the connector, and an inner cavity is provided on one side of the inner wall of the fixing plate.

[0007] In some embodiments, a threaded rod on one side of the connector is threadedly connected to a first threaded groove on one side of the inner wall of the fixing plate.

[0008] In some embodiments, the limiting block is connected to the limiting groove formed on the limiting plate.

[0009] In some embodiments, the third threaded groove on the mounting block is connected to the second threaded groove on one side of the fixing block.

[0010] In some embodiments, the lower end of the limiting block is threadedly connected to the second threaded groove and the third threaded groove.

[0011] In some embodiments, the inner wall of the mounting block is provided with a groove and is movably connected to the outer wall of the movable plate, and is correspondingly connected to the mounting groove provided on one side of the lower end of the fixed block.

[0012] In some embodiments, the movable plate is movably connected to one side of the inner wall of the cavity, and the outer wall of the threaded rod away from the connector is correspondingly connected to the movable plate provided on one side of the inner wall of the cavity.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. In use, the connecting mechanism of this utility model employs a limiting block, a limiting plate, and a second threaded groove, enabling the mounting block to be firmly connected to the outer wall of the movable plate. Furthermore, by rotating the limiting block, the mounting block can be easily fixed or disassembled. This detachable design effectively avoids the shortcomings of existing devices that cannot be cleaned, disinfected, or have their mounting blocks replaced, reducing the risk of cross-infection and improving the hygiene and maintainability of the device.

[0015] 2. In use, this invention utilizes the engagement of the threaded rod with the first threaded groove. The rotation of the connecting piece causes the threaded rod to shift along the inner wall, thereby squeezing the two movable plates. This causes the movable plates to shift to both sides within the inner cavity around the first connecting shaft, forming different angles. This adjustment method allows for precise adjustment of the movable plates' angles as needed, thus enabling effective mouth-opening training for the patient and helping to improve their motor function. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembly structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional disassembly diagram of the present invention;

[0019] Figure 4 This is a disassembled structural diagram of the connection mechanism of this utility model.

[0020] In the diagram: 1. Fixed plate; 2. First threaded groove; 3. Connector; 4. Threaded rod; 5. First connecting shaft; 6. Inner cavity; 7. Movable plate; 8. Connecting mechanism; 9. Mounting block; 10. Third threaded groove;

[0021] 81. Fixing block; 82. Second connecting shaft; 83. Limiting plate; 84. Limiting groove; 85. Mounting groove; 86. Second threaded groove; 87. Limiting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a mouth-opening exercise device after radiotherapy for head and neck tumors, including a fixed plate 1, with a first connecting shaft 5 fixedly connected to both sides of the fixed plate 1. A movable plate 7 is movably connected to one side of the outer wall of the first connecting shaft 5. A connecting mechanism 8 is fixedly connected to the upper outer wall of one side of the movable plate 7. The connecting mechanism 8 includes a fixed block 81 fixedly connected to the upper outer wall of the movable plate 7. A second connecting shaft 82 is fixedly connected to the upper end of one side of the fixed block 81. A limiting plate 83 is movably connected to the outer wall of one side of the second connecting shaft 82. A limiting groove 84 is formed on the limiting plate 83. An installation groove 85 is formed at the lower end of the fixed block 81. A second threaded groove 86 is provided, and a limiting block 87 is threadedly connected to one side of the inner wall of the second threaded groove 86. The limiting block 87 is correspondingly connected to the limiting groove 84 opened on the limiting plate 83. An installation block 9 is movably connected to one side of the outer wall of the movable plate 7. The inner wall of the installation block 9 has a groove and is movably connected to the outer wall of the movable plate 7. It is also correspondingly connected to the installation groove 85 opened on one side of the lower end of the fixed block 81. A third threaded groove 10 is provided on one side of the upper end of the installation block 9. The third threaded groove 10 opened on the installation block 9 is correspondingly connected to the second threaded groove 86 opened on one side of the fixed block 81. The lower end of the limiting block 87 is threadedly connected to the second threaded groove 86 and the third threaded groove 10.

[0024] In this embodiment, a fixed plate 1 is designed, with a first connecting shaft 5 fixedly connected to each of its two sides. A movable plate 7 is movably connected to one side of the outer wall of the first connecting shaft 5. A connecting mechanism 8 is fixedly connected to the upper end of the outer wall of the movable plate 7 away from the fixed plate 1. The connecting mechanism 8 includes a fixed block 81, a second connecting shaft 82 fixedly connected to one side of the upper end of the fixed block 81, a limiting plate 83 movably connected to the outer wall of the second connecting shaft 82, a limiting groove 84 formed on the limiting plate 83, and an installation groove 85 formed at the lower end of the fixed block 81, which corresponds to the upper outer wall of the movable plate 7. A second threaded groove 86 is formed on the other side of the outer wall of the fixed block 81, and a limiting block 87 is threadedly connected to one side of the inner wall of the second threaded groove 86. The top end of the second connecting shaft 82 is rectangular, and an installation block 9 is movably connected to one side of the outer wall of the movable plate 7. A third thread is formed on the upper outer wall of the installation block 9. The groove 10 allows the third threaded groove 10 to connect with the second threaded groove 86 on the fixed block 81 when the mounting block 9 is installed on the outer wall of the movable plate 7. The mounting block 9 can also engage with the mounting groove 85. At this time, the limiting block 87 is threadedly connected to the second threaded groove 86 and the third threaded groove 10. The limiting plate 83 can be rotated around the second connecting shaft 82, and the top of the limiting block 87, which is rectangular, can be rotated so that the limiting groove 84 on the limiting plate 83 can pass through the limiting block 87. Then, the limiting block 87 is rotated so that the top of the rectangular shape will cross-connect with the limiting groove 84, thereby limiting it and fixing the mounting block 9 to one side of the outer wall of the movable plate 7. Conversely, it can be disassembled, avoiding the situation where existing devices are mostly one-piece and cannot be disassembled, making it impossible to effectively disinfect, clean, and replace the mounting block 9, which could lead to cross-infection of bacteria.

[0025] Example 2: Please refer to Figure 1-3 A first threaded groove 2 is provided on one side of the inner wall of the fixed plate 1. A connector 3 is movably connected to the outer wall of one side of the fixed plate 1. A threaded rod 4 is fixedly connected to one side of the connector 3. The threaded rod 4 on one side of the connector 3 is threadedly connected to the first threaded groove 2 on one side of the inner wall of the fixed plate 1. An inner cavity 6 is provided on one side of the inner wall of the fixed plate 1. A movable plate 7 is movably connected to one side of the inner wall of the inner cavity 6. The outer wall of the threaded rod 4 away from the connector 3 is correspondingly connected to the movable plate 7 on one side of the inner wall of the inner cavity 6.

[0026] In this embodiment, a threaded rod 4 is threadedly connected to one side of the inner wall of the fixed plate 1 via a first threaded groove 2, and a connector 3 is fixedly connected to the outer wall of one side of the threaded rod 4. The connector 3 is located on one side of the outer wall of the fixed plate 1. Therefore, when the connector 3 is rotated, the threaded rod 4 can be driven to shift to one end on one side of the inner wall of the first threaded groove 2. An inner cavity 6 is opened on one side of the inner wall of the fixed plate 1, and a movable plate 7 is movably connected to one side of the inner cavity 6 via a first connecting shaft 5. The two are connected to one side of the threaded rod 4. Therefore, when the threaded rod 4 shifts, it will squeeze the two movable plates 7, thereby causing them to shift to both sides on one side of the inner wall of the inner cavity 6 with the first connecting shaft 5 as the axis, thus forming different included angles. This method can effectively exercise the patient's mouth opening.

[0027] like Figure 1-4 As shown, this device achieves detachable installation of the mounting block 9 and opening and closing control of the movable plate 7 through mechanical linkage and threaded engagement, thereby completing the training of the patient's mouth opening ability, effectively solving the problems of cleaning and replacement, and improving the health protection capability.

[0028] The device is based on a fixed plate 1, with first connecting shafts 5 distributed on both sides, forming the rotation fulcrum of the movable plates 7. The two movable plates 7 can open and close symmetrically around the first connecting shafts 5 within the inner cavity 6. When the internal threaded rod 4 advances linearly along the first threaded groove 2, the connecting piece 3 at one end drives the threaded rod 4 to move axially under rotation. This movement acts symmetrically on the two movable plates 7, causing them to deviate in opposite directions, ultimately forming the opening angle. This adjustment method, through precise thread control, ensures the controllability of the opening angle and the smoothness of the adjustment, adapting to different opening requirements.

[0029] The detachable structure of mounting block 9 is another major feature of the device. Mounting block 9 is fixed to the outer surface of movable plate 7 and is stably connected through the fit between threaded grooves. As the core component of connecting mechanism 8, fixed block 81 is provided with mounting groove 85 to achieve precise engagement with movable plate 7, and its other end is provided with second threaded groove 86 for threaded connection with limiting block 87. Third threaded groove 10 on mounting block 9 is threadedly matched with second threaded groove 86, and the two are fixed by limiting block 87.

[0030] The locking mechanism of the device relies on the structural cooperation between the limiting plate 83 and the limiting block 87. The limiting plate 83 rotates around the second connecting shaft 82, and when its limiting groove 84 and the top of the limiting block 87 form a cross-engagement state, it can effectively prevent the mounting block 9 from falling off. At the same time, the design of the top shape of the limiting block 87 matches the limiting groove 84. By rotating the limiting block 87, the locking and unlocking can be switched, thereby completing the fixing and disassembly of the mounting block 9. This structure ensures that the mounting block 9 can be removed for cleaning or replacement in a timely manner after use, eliminating the existence of unsanitary corners.

[0031] In summary, through the synergistic effect of the fixed plate 1, the movable plate 7, the threaded drive system, and the detachable connecting components, this device can achieve gradual and controllable traction training of the patient's mouth, and improves the adaptability and safety of the device in the medical environment through a simple modular disassembly method.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A mouth-opening exercise device after radiotherapy for head and neck tumors, characterized in that: The device includes a fixed plate (1), on both sides of which a first connecting shaft (5) is fixedly connected. A movable plate (7) is movably connected to one side of the outer wall of the first connecting shaft (5). A connecting mechanism (8) is fixedly connected to the upper outer wall of one side of the movable plate (7). The connecting mechanism (8) includes a fixed block (81) fixedly connected to the upper outer wall of the movable plate (7). A second connecting shaft (82) is fixedly connected to the upper side of one side of the fixed block (81). A limiting plate (83) is movably connected to the outer wall of one side of the second connecting shaft (82). A limiting groove (84) is opened on the limiting plate (83). An installation groove (85) is opened at the lower end of the fixed block (81). A second threaded groove (86) is opened on one side of the fixed block (81). A limiting block (87) is threadedly connected to one side of the inner wall of the second threaded groove (86). An installation block (9) is movably connected to one side of the outer wall of one side of the movable plate (7). A third threaded groove (10) is opened on the upper outer wall of the installation block (9).

2. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 1, characterized in that: The fixing plate (1) has a first threaded groove (2) on one side of its inner wall, and a connector (3) is movably connected to the outer wall of one side of the fixing plate (1). A threaded rod (4) is fixedly connected to one side of the connector (3), and an inner cavity (6) is formed on the inner wall of one side of the fixing plate (1).

3. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 2, characterized in that: The threaded rod (4) on one side of the connector (3) is threadedly connected to the first threaded groove (2) on one side of the inner wall of the fixing plate (1).

4. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 1, characterized in that: The limiting block (87) is connected to the limiting groove (84) opened on the limiting plate (83).

5. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 1, characterized in that: The third threaded groove (10) on the mounting block (9) is connected to the second threaded groove (86) on one side of the fixing block (81).

6. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 1, characterized in that: The lower end of the limiting block (87) is threadedly connected to the second threaded groove (86) and the third threaded groove (10).

7. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 1, characterized in that: The inner wall of the mounting block (9) is provided with a groove and is movably connected to the outer wall of the movable plate (7), and is correspondingly connected to the mounting groove (85) opened on one side of the lower end of the fixed block (81).

8. The mouth-opening exercise device after radiotherapy for head and neck tumors according to claim 2, characterized in that: The movable plate (7) is movably connected to one side of the inner wall of the inner cavity (6), and the outer wall of the threaded rod (4) away from the connector (3) is correspondingly connected to the movable plate (7) provided on one side of the inner wall of the inner cavity (6).

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