Device for preventing temporomandibular joint disorder caused by head and neck radiotherapy
By designing a device including a fixing plate at the back neck, a rack, a fixing groove, a support rod and an extension and adjustment wire, the problem that traditional equipment cannot provide elastic mouth opening function is solved, and the assistance of effective occlusal exercise for patients is achieved, and the mobility of the temporomandibular joint is improved.
Patent Information
- Application Number
- CN202411882770.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional equipment cannot provide elastic mouth opening function and cannot allow patients to perform effective occlusal exercises, resulting in limited temporomandibular joint movement.
A device including a rear neck fixing plate, a rack, a fixing groove, a support rod and an extension and adjustment wire is designed. Through the combination of these components, mechanical power to assist in opening the mouth and facilitate the patient's occlusal exercise.
This device can effectively assist patients in opening their mouths, provide mechanical power for elastic openings, facilitate patients to perform occlusal exercises, improve temporomandibular joint mobility, and reduce the occurrence of difficulty in opening mouths.
Smart Images
Figure CN119679605A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of medical devices, and in particular is a device for preventing temporomandibular joint disorders caused by head and neck radiotherapy. Background Art
[0002] The temporomandibular joint connects the temporal bone and the mandible and is the only movable cranial joint in the human body. It is responsible for many functions such as chewing, speaking, yawning, and affects the appearance of the face. The temporomandibular joint is composed of the joint socket, joint head, joint disc and ligaments. It has a precise structure and flexible movement, but it is also susceptible to injury and disease.
[0003] After the temporomandibular joint and the surrounding masseter muscles are subjected to high-dose radiotherapy, reactive exudation and adhesion of the intermandibular soft tissue will occur, and then fibrosis will form contracture, which will limit the movement of the temporomandibular joint and cause difficulty in opening the mouth. Early mouth opening function exercises can effectively prevent the difficulty in opening the mouth after radiotherapy for nasopharyngeal carcinoma, improve the degree of mouth opening, and reduce the occurrence of difficulty in opening the mouth.
[0004] However, traditional equipment can only open the patient's mouth to the maximum, and it is not elastic, so it cannot allow the patient to bite and perform bite exercises well. Summary of the invention
[0005] The purpose of the present invention is to provide a device for preventing temporomandibular joint disorders caused by head and neck radiotherapy in order to solve the problem that the above-mentioned traditional equipment can only open the patient's mouth to the maximum, has no elasticity, and cannot allow the patient to bite and exercise the bite well.
[0006] The technical solution adopted by the present invention is as follows: A device for preventing temporomandibular joint disorders caused by radiotherapy of the head and neck, comprising a back neck fixing plate, a rack is welded on the outer surface of the lower end of the back neck fixing plate, a fixing groove is movably inserted on the outer surface of the rack, an adjustment block is movably connected to the outer surface of the fixing groove, a support rod is welded on the outer surface of the adjustment block, an extended adjustment wire is movably inserted on the inner surface of the support rod, an elastic band is fixedly connected to the outer surface of the upper end of the back neck fixing plate, an attachment strip is fixedly connected to the outer surface of the elastic band, a winding body is provided on the outer surface of the attachment strip, and the outer surface of the output end of the winding body is fixedly connected to the support rod.
[0007] By adopting the above technical solution, the device is fixed to the rear end of the neck through the rear neck fixing plate, the lower jaw is fixed under the patient through the fixing groove and the support plate, and the upper part is fixed above the patient through the attachment strip, the fixed mask, and the nose patch on the bridge of the nose. The steel wire is extended and adjusted to be inserted into the support rod and clamped on the upper jaw of the patient. The retracting main body retracts to provide an upward force for the outer side of the support rod, providing the patient with mechanical power to assist in opening the mouth. While providing the patient with good mechanical power to assist in opening the mouth, it is convenient for the patient to perform bite exercises.
[0008] In a preferred embodiment, a fixed mask is welded to the outer surface of the attachment strip, and a nose patch is provided on the middle outer surface of the fixed mask.
[0009] By adopting the above technical solution, the mask and nose patch are fixed on the bridge of the nose, above the patient and at the front end, which facilitates the fixation of the entire device.
[0010] In a preferred embodiment, a limit button is movably inserted into the inner surface of the fixing groove, a lower jaw outer hoop is fixedly connected to the outer surface of the fixing groove, and a support plate is fixedly connected to the outer surface of the lower jaw outer hoop.
[0011] By adopting the above technical solution, the limit button can be pressed to facilitate the card rack to be pushed out of the fixing slot, thereby completing the detachment of the device. The inner surface of the mandibular outer hoop is attached to and fixed to the user's chin, and the upper surface of the support plate is attached to and supports the patient's chin to ensure the overall stability of the device.
[0012] In a preferred embodiment, a traction belt is fixedly connected to the outer surface of the lower jaw outer hoop, and a rack is fixedly connected to the outer surface of one end of the traction belt away from the lower jaw outer hoop.
[0013] By adopting the above technical solution, the rack traction belt can facilitate the mandibular outer hoop to be moved from both sides to the middle and fixed at the chin of the patient.
[0014] In a preferred embodiment, a tightening body is movably inserted into the outer surface of the rack, and a knob is movably connected to the tightening body corresponding to the inner surface of the rack.
[0015] By adopting the above technical solution, the knob is rotated to displace the rack, so that the traction belt is retracted toward the tightening body, and then the front end of the mandibular outer hoop is retracted.
[0016] In a preferred embodiment, an adjustment shell is welded to the outer surface of the tightening body, and a limit switch is arranged on the inner surface of the adjustment shell.
[0017] By adopting the above technical solution, the limit card switch can only rotate in one direction when the knob is rotated, completing the retraction of the rack corresponding to the traction belt, and the release is completed by lifting the limit card switch.
[0018] In a preferred embodiment, a slider is fixedly connected to the outer surface of the lower jaw outer hoop, a movable groove is provided on the outer surface of the tightening body, and the outer surface of the slider is movably connected to the inner surface of the movable groove.
[0019] By adopting the above technical solution, the slider and the movable groove are conveniently positioned when the outer hoop of the lower jaw is clamped, thereby avoiding misalignment.
[0020] In a preferred embodiment, a support plate is movably connected to the upper surface of the tightening body, a lower clamping plate is fixedly connected to the upper surface of the support plate, and an upper clamping plate is movably connected to the outer surface of the lower clamping plate.
[0021] By adopting the above technical solution, the tightening body is inserted through the support plate, and the patient bites between the lower splint and the upper splint to make an opening.
[0022] In a preferred embodiment, a spring is provided on the inner surface of the lower clamping plate, and a flexible connecting strip is fixedly connected to the inner surface of the lower clamping plate.
[0023] By adopting the above technical solution, the spring and the soft connecting strip provide an outward thrust toward the upper and lower sides between the lower clamping plate and the upper clamping plate.
[0024] In a preferred embodiment, screws are welded to the outer surface of the upper clamping plate, a limiting block is welded to the outer surface of the upper clamping plate, and a nut is movably connected to the outer surface of the flexible connecting strip.
[0025] By adopting the above technical solution, the nut is rotated to adjust the distance between the screw and the limit block to complete the height adjustment, and also provide the temporomandibular joint opening function, provide mechanical assistance, and facilitate the patient's bite exercise.
[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0027] 1. The device is fixed to the rear end of the neck through the back neck fixing plate, the lower jaw is fixed to the bottom of the patient through the fixing groove and the support plate, and the upper part is fixed to the bridge of the nose through the attachment strip, the fixing mask, and the nose patch. The steel wire is inserted into the support rod and clamped on the upper jaw of the patient by extending the adjustment wire. The retracting body retracts to provide an upward force to the outer side of the support rod, providing the patient with a good mechanical power to assist the opening of the mouth, while facilitating the patient to perform bite exercises. The lower splint and the upper splint also provide such effects, without the need for cumbersome external fixation when needed, providing more convenient operation;
[0028] Second, fix the mask and nose patch on the upper bridge of the nose, and fix the outer jaw hoop and support plate on the outside of the chin to better complete the fixation and ensure the overall stability of the equipment;
[0029] 3. The equipment provides multiple adjustment components, and can also extend and adjust steel wires, elastic bands and other components that can be adjusted autonomously and freely, so that they can self-adjust when needed, which is convenient for more users and usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0031] Figure 1 It is a front view of the overall appearance of the device of the present invention;
[0032] Figure 2 It is a back view of the overall appearance of the device in the present invention;
[0033] Figure 3 This is a schematic diagram of the device connection structure in the present invention;
[0034] Figure 4 It is a schematic diagram of the appearance of the tightening main body of the device in the present invention;
[0035] Figure 5 It is a schematic diagram of the internal structure of the tightening body of the device in the present invention;
[0036] Figure 6 It is a schematic diagram of the independent expansion structure in the present invention.
[0037] Markings in the figure: 1. Back neck fixing plate; 2. Card rack; 3. Fixing slot; 4. Limit button; 5. Adjustment block; 6. Support rod; 7. Extension adjustment wire; 8. Elastic band; 9. Attachment strip; 10. Retracting body; 11. Fixed mask; 12. Nose patch; 13. Lower jaw outer hoop; 14. Support plate; 15. Traction belt; 16. Rack; 17. Tightening body; 18. Knob; 19. Adjustment shell; 20. Limit card switch; 21. Support plate; 22. Lower splint; 23. Upper splint; 24. Spring; 25. Flexible connecting strip; 26. Screw; 27. Limit block; 28. Nut; 29. Slider; 30. Movable slot. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0039] Example:
[0040] Reference Figure 1-3A device for preventing temporomandibular joint disorders caused by head and neck radiotherapy includes a back neck fixing plate 1, a card rack 2 is welded on the outer surface of the lower end of the back neck fixing plate 1, a fixing groove 3 is movably inserted on the outer surface of the card rack 2, an adjustment block 5 is movably connected to the outer surface of the fixing groove 3, a support rod 6 is welded on the outer surface of the adjustment block 5, an extended adjustment wire 7 is movably inserted on the inner surface of the support rod 6, an elastic band 8 is fixedly connected to the outer surface of the upper end of the back neck fixing plate 1, an attachment strip 9 is fixedly connected to the outer surface of the elastic band 8, a retracting body 10 is arranged on the outer surface of the attachment strip 9, and the outer surface of the output end of the retracting body 10 is fixedly connected to the support rod 6.
[0041] The device is fixed to the rear end of the neck through the rear neck fixing plate 1, and the lower jaw is fixed below the patient through the fixing groove 3 and the support plate 14. The upper part is fixed above the patient by the attachment strip 9, the fixing mask 11, and the nose patch 12 on the bridge of the nose. The steel wire 7 is extended and adjusted to be inserted into the support rod 6 and clamped on the upper jaw of the patient. The retracting body 10 is retracted to provide an upward force for the outer side of the support rod 6, providing the patient with mechanical power to assist in opening the mouth. While providing the patient with good mechanical power to assist in opening the mouth, it is convenient for the patient to perform bite exercises.
[0042] Reference Figure 1-3 A fixed mask 11 is welded on the outer surface of the attachment strip 9, and a nose patch 12 is arranged on the middle outer surface of the fixed mask 11.
[0043] The fixed mask 11 and nose patch 12 are put on the bridge of the nose and fixed above and at the front end of the patient, which facilitates the fixation of the entire device.
[0044] Reference Figure 1-3 A limit button 4 is movably inserted into the inner surface of the fixing groove 3, a lower jaw outer hoop 13 is fixedly connected to the outer surface of the fixing groove 3, and a support plate 14 is fixedly connected to the outer surface of the lower jaw outer hoop 13.
[0045] By pressing the limit button 4, the rack 2 can be pushed out of the fixing slot 3 to complete the detachment of the device. The inner surface of the mandibular outer hoop 13 is attached to and fixed to the user's chin, and the upper surface of the support plate 14 is attached to and supports the patient's chin to ensure the overall stability of the device.
[0046] Reference Figure 1-4 A traction belt 15 is fixedly connected to the outer surface of the lower jaw outer hoop 13 , and a rack 16 is fixedly connected to the outer surface of one end of the traction belt 15 away from the lower jaw outer hoop 13 .
[0047] The rack 16 pulls the traction belt 15 to facilitate the mandibular outer hoop 13 to move from both sides to the middle and fix it at the chin of the patient.
[0048] Reference Figure 1-5 A tightening body 17 is movably inserted into the outer surface of the rack 16 , and a knob 18 is movably connected to the tightening body 17 corresponding to the inner surface of the rack 16 .
[0049] The knob 18 is rotated to displace the rack 16, so that the traction belt 15 is retracted toward the tightening body 17, and then the front end of the mandibular outer hoop 13 is retracted.
[0050] Reference Figure 1-5 An adjustment shell 19 is welded on the outer surface of the tightening body 17 , and a limit card switch 20 is arranged on the inner surface of the adjustment shell 19 .
[0051] The limit card switch 20 can only rotate in one direction when the knob 18 rotates, so that the rack 16 is wound up corresponding to the traction belt 15, and the release is completed by lifting the limit card switch 20.
[0052] Reference Figure 1-3 A slider 29 is fixedly connected to the outer surface of the lower jaw outer hoop 13 , a movable groove 30 is provided on the outer surface of the tightening body 17 , and the outer surface of the slider 29 is movably connected to the inner surface of the movable groove 30 .
[0053] The slider 29 and the movable groove 30 facilitate the position when the lower jaw outer hoop 13 is clamped to avoid misalignment.
[0054] Reference Figure 1-3 6. A support plate 21 is movably connected to the upper surface of the tightening body 17. A lower clamping plate 22 is fixedly connected to the upper surface of the support plate 21. An upper clamping plate 23 is movably connected to the outer surface of the lower clamping plate 22.
[0055] The tightening body 17 is inserted through the support plate 21 , and the patient bites between the lower splint 22 and the upper splint 23 to form an opening.
[0056] Reference Figure 1-3 6. A spring 24 is provided on the inner surface of the lower clamping plate 22, and a soft connecting strip 25 is fixedly connected to the inner surface of the lower clamping plate 22.
[0057] The spring 24 and the flexible connecting strip 25 provide an outward thrust between the lower clamping plate 22 and the upper clamping plate 23 toward the upper and lower sides.
[0058] Reference Figure 1-3 6. Screws 26 are welded on the outer surface of the upper clamping plate 23, a limiting block 27 is welded on the outer surface of the upper clamping plate 23, and a nut 28 is movably connected to the outer surface of the flexible connecting strip 25.
[0059] The nut 28 is rotated to adjust the distance between the screw 26 and the limit block 27 to complete the height adjustment, and also provides the function of opening the temporomandibular joint, providing mechanical assistance and facilitating the patient's bite exercise.
[0060] The implementation principle of the device for preventing temporomandibular joint disorders caused by head and neck radiotherapy of the present invention is as follows:
[0061] The device is fixed to the rear end of the neck through the back neck fixing plate 1, the lower jaw is clamped through the fixing groove 3 and the support plate 14, the knob 18 is rotated to displace the rack 16, so that the traction belt 15 shrinks toward the tightening body 17, and then the front end of the lower jaw outer hoop 13 is completely shrunk, and the inner surface of the lower jaw outer hoop 13 is attached to the user's chin, and the rack 2 is inserted into the fixing groove 3 to fix the lower part, and the upper part is fixed above the patient through the attachment strip 9, the fixing mask 11, and the nose patch 12 on the bridge of the nose, and is inserted into the support rod by extending the adjustment wire 7. 6 is clamped on the patient's upper jaw, and the retracting body 10 is retracted to provide an upward force to the outer side of the support rod 6, providing the patient with a mechanical power to assist in opening the mouth. Similarly, the tightening body 17 is inserted through the support plate 21, and the patient bites between the lower splint 22 and the upper splint 23. The spring 24 and the soft connecting strip 25 provide an upward and lower force, and the nut 28 is rotated to adjust the distance between the screw 26 and the limit block 27 to complete the height adjustment, which also provides a temporomandibular joint opening function, provides mechanical assistance, and facilitates the patient's bite exercise.
[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A device for preventing temporomandibular joint disorders caused by head and neck radiotherapy, comprising a posterior neck fixation plate (1), characterized in that: A rack (2) is welded to the outer surface of the lower end of the back neck fixing plate (1); a fixing groove (3) is movably inserted into the outer surface of the rack (2); an adjustment block (5) is movably connected to the outer surface of the fixing groove (3); a support rod (6) is welded to the outer surface of the adjustment block (5); an extension adjustment wire (7) is movably inserted into the inner surface of the support rod (6); an elastic band (8) is fixedly connected to the outer surface of the upper end of the back neck fixing plate (1); an attachment strip (9) is fixedly connected to the outer surface of the elastic band (8); a retracting body (10) is provided on the outer surface of the attachment strip (9); and the outer surface of the output end of the retracting body (10) is fixedly connected to the support rod (6).
2. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 1, characterized in that: A fixed mask (11) is welded to the outer surface of the attachment strip (9), and a nose patch (12) is arranged on the middle outer surface of the fixed mask (11).
3. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 1, characterized in that: The inner surface of the fixing groove (3) is movably plugged with a limit button (4), the outer surface of the fixing groove (3) is fixedly connected to a lower jaw outer hoop (13), and the outer surface of the lower jaw outer hoop (13) is fixedly connected to a support plate (14).
4. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 3, characterized in that: A traction belt (15) is fixedly connected to the outer surface of the lower jaw outer hoop (13), and a rack (16) is fixedly connected to the outer surface of one end of the traction belt (15) away from the lower jaw outer hoop (13).
5. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 4, characterized in that: A tightening body (17) is movably inserted into the outer surface of the rack (16), and a knob (18) is movably connected to the inner surface of the tightening body (17) corresponding to the rack (16).
6. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 5, characterized in that: An adjustment shell (19) is welded on the outer surface of the tightening body (17), and a limit switch (20) is provided on the inner surface of the adjustment shell (19).
7. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 3, characterized in that: The outer surface of the lower jaw outer hoop (13) is fixedly connected with a slider (29), the outer surface of the tightening body (17) is provided with a movable groove (30), and the outer surface of the slider (29) is movably connected to the inner surface of the movable groove (30).
8. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 5, characterized in that: A support plate (21) is movably inserted into the upper surface of the tightening body (17), a lower clamping plate (22) is fixedly connected to the upper surface of the support plate (21), and an upper clamping plate (23) is movably connected to the outer surface of the lower clamping plate (22).
9. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 8, characterized in that: A spring (24) is provided on the inner surface of the lower clamping plate (22), and a flexible connecting strip (25) is fixedly connected to the inner surface of the lower clamping plate (22).
10. The device for preventing temporomandibular joint disorders caused by head and neck radiotherapy as claimed in claim 8, characterized in that: The outer surface of the upper clamping plate (23) is welded with a screw (26), the outer surface of the upper clamping plate (23) is welded with a limit block (27), and the outer surface of the flexible connecting strip (25) is movably connected with a nut (28).