Non-entry temporomandibular joint motion angle measuring and training equipment

Abstract

The invention discloses non-entrance temporomandibular joint motion angle measuring and training equipment, and particularly relates to the field of joint training equipment. Comprising an elastic band; the two fixing blocks are symmetrically and fixedly arranged on the two sides of the elastic band; the two electric telescopic rods are arranged on the two fixing blocks respectively; the two rotating rods are arranged at the free ends of the electric telescopic rods respectively; the angle sensors are embedded in the corresponding rotating rods; each first push rod is connected to the corresponding rotating rod in a sliding manner; the two reset springs are respectively connected between the first push rods and the corresponding rotating rods; the supporting assembly is used for providing supporting force for the lower jaw. By the adoption of the technical scheme, the problem that angle measurement and training of the temporomandibular joint cannot be achieved on the premise that the temporomandibular joint is not entered in the prior art is solved, and the device can be suitable for different scenes.

Description

Technical Field

[0001] The present invention relates to the field of joint training equipment, and particularly to a non-invasive temporomandibular joint motion angle measurement and training device. Background Art

[0002] The temporomandibular joint (TMJ) is one of the most complex joints in the human body, undertaking important functions such as chewing, swallowing, and speech. However, the incidence of temporomandibular joint disorders (TMD) has been increasing year by year, manifested as joint pain, limited mobility, clicking sounds, etc., seriously affecting the quality of life of patients. Currently, clinical diagnosis and evaluation of TMD mainly rely on doctors' empirical palpation, questionnaires, and imaging examinations (such as X-rays, MRIs, etc.), but these methods have limitations such as strong subjectivity, high cost, and inability to perform real-time dynamic monitoring. Especially for the quantitative measurement of joint motion angles, existing technologies mostly use invasive devices (such as placing sensors in the oral cavity), which not only cause discomfort to patients but also may interfere with normal joint motion, resulting in distorted measurement results. Therefore, developing a non-invasive and high-precision temporomandibular joint motion angle measurement device has become an urgent need in the clinical and rehabilitation fields.

[0003] In existing temporomandibular joint motion measurement technologies, optical motion capture systems and surface electromyography sensors are relatively common non-contact or minimally invasive solutions. The optical system tracks mandibular motion through marker points or infrared cameras. Although it can achieve high precision, the device is expensive, the operation is complex, and it is sensitive to environmental light and occlusion, making it difficult to popularize in clinical or home scenarios. The surface electromyography sensor indirectly reflects joint activity by monitoring muscle electrical signals, but its signals are easily interfered by factors such as skin condition and electrode position, and it cannot directly output joint motion angle data. In addition, existing training devices mostly focus on muscle strength or endurance training, lacking targeted guidance on joint motion trajectories and angles, and it is difficult to meet the needs of personalized rehabilitation. These technical deficiencies limit the accurate assessment and effective rehabilitation of temporomandibular joint dysfunction.

[0004] With the development of wearable technology and artificial intelligence, motion sensors (such as inertial measurement units, IMUs) and machine learning algorithms have provided new possibilities for temporomandibular joint motion analysis. However, existing IMU-based devices are mostly designed for large joints (such as the knee joint and shoulder joint), and do not fully consider the characteristics of the small motion range and complex degrees of freedom of the temporomandibular joint, resulting in large measurement errors. At the same time, there is a lack of integrated devices in the market that integrate angle measurement and rehabilitation training functions. Patients usually need to switch between different devices or platforms, reducing the coherence and compliance of rehabilitation. In addition, existing training devices mostly rely on preset programs and cannot dynamically adjust training programs according to the real-time motion data of patients, making it difficult to achieve precise and personalized rehabilitation goals. Therefore, there is an urgent need for a non-invasive temporomandibular joint motion device with both angle measurement and real-time feedback training functions to fill the current technological gap. Summary of the Invention

[0005] The present invention aims to provide a non-invasive temporomandibular joint motion angle measurement and training device, which solves the problem that the prior art cannot measure and train the temporomandibular joint angle without invasion.

[0006] To achieve the above object, the technical solution of the present invention is as follows: A non-invasive temporomandibular joint motion angle measurement and training device, comprising:

[0007] An elastic band, the elastic band being annular;

[0008] Two fixing blocks, the two fixing blocks being symmetrically and fixedly arranged on both sides of the elastic band;

[0009] Two electric telescopic rods, the two electric telescopic rods being respectively arranged on the two fixing blocks;

[0010] Two rotating rods, the two rotating rods being respectively arranged at the free ends of the electric telescopic rods;

[0011] An angle sensor, the angle sensor being embedded in the corresponding rotating rod;

[0012] Two first push rods, each first push rod being slidably connected to the corresponding rotating rod;

[0013] Two return springs, the two return springs being respectively connected between the first push rod and the corresponding rotating rod;

[0014] A support assembly, the support assembly being used to provide a supporting force for the mandible.

[0015] Further, the support assembly includes:

[0016] Two connecting rods, the two connecting rods being respectively connected to the ends of the two first push rods;

[0017] Two support plates, the two support plates are respectively rotatably connected to the ends of the connecting rod, and a gap is left between the two support plates;

[0018] Two fixed columns, the two fixed columns are respectively arranged on the two support plates;

[0019] An elastic ring, the elastic ring is coated between the two fixed columns.

[0020] Through the above settings, the two support plates can provide support force for the mandible. At the same time, since the two support plates can rotate relative to each other, and the movement of one support plate can drive the movement of the other support plate through the elastic ring and the fixed column, the measurement and training of the rotation angle of the unilateral or bilateral mandible are realized, greatly improving the application range of this solution.

[0021] Further, a second push rod is arranged on the rotating rod, a groove for the second push rod to rotate is opened on the fixing plate, the inner wall of the groove is made of iron, and a plurality of damping blocks located on the second push rod are slidably connected in the groove. Each damping block is a magnet adsorbed to the inner wall of the groove.

[0022] Through the above settings, with the help of a plurality of damping blocks, the same resistance can be provided for the rotation of the second push rod and the rotating rod, and the size of the resistance can be adjusted according to the actual situation, so as to provide different training intensities, which is convenient for the user to adjust independently, effectively enhancing the training effect and the enthusiasm of the user.

[0023] Further, the electric telescopic rod is electrically connected to a controller, the controller is arranged on the rotating rod, the controller is also electrically connected to a micro audio, the micro audio is arranged on the side wall of the fixed block, and the controller is electrically connected to the angle sensor.

[0024] Through the above settings, with the help of the controller, the position of the free end of the electric telescopic rod can be adjusted. If the electric telescopic rod is flush with the end of the support column, the support column can be used

[0025] Further, a push handle is arranged on each of the first push rods.

[0026] Through the above settings, with the help of the push handle, the first push rod and the rotating rod can be driven to rotate, so as to assist the user in measuring or training the rotation angle, improving the convenience of measurement and training.

[0027] Further, anti-slip patterns are arranged on the inner side of the support plate.

[0028] Through the above settings, with the help of the anti-slip patterns, the connection stability between the support plate and the mandible can be enhanced, preventing the mandible from separating from the support plate, and improving the reliability of this solution.

[0029] Compared with the prior art, the beneficial effects of this solution are as follows:

[0030] This solution provides a non-invasive temporomandibular joint movement angle measurement and training device, which can measure and train the unilateral or bilateral rotation angles of the mandible without invasion, solving the problem that the prior art cannot measure and train the angles of the temporomandibular joint without invasion. Moreover, the structure of this solution is simple and does not require precision components to complete the relevant measurement and training work, greatly reducing the cost of this product. At the same time, its usage method is simple, and the user can adjust it in a timely manner according to their own situation, enhancing the user's confidence in training. Additionally, the user can train in different scenarios such as at home, in the hospital, and outdoors, improving the application scope of this solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is an axonometric view of a non-invasive temporomandibular joint movement angle measurement and training device of the present invention;

[0032] Figure 2 is a front view of a non-invasive temporomandibular joint movement angle measurement and training device of the present invention;

[0033] Figure 3 is Figure 2 a sectional view taken along line A-A in

[0034] Figure 4 is a bottom view of a non-invasive temporomandibular joint movement angle measurement and training device of the present invention.

[0035] The reference numerals in the accompanying drawings of the specification include: elastic band 1, fixing block 2, damping block 3, electric telescopic rod 4, fixing ring 5, cover plate 6, rotating rod 7, disc 8, second push rod 9, sliding groove 10, angle sensor 11, first push rod 12, push handle 13, return spring 14, connecting rod 15, support plate 16, fixing column 17, elastic ring 18, controller 19, and micro audio 20. DETAILED DESCRIPTION OF THE INVENTION

[0036] The present invention will be further described in detail below through specific embodiments:

[0037] Embodiment

[0038] As Figures 1 to 4 shown, a non-invasive temporomandibular joint movement angle measurement and training device includes:

[0039] An elastic band 1, the elastic band 1 is annular, so as to facilitate the user to wear the elastic band 1 on the head, and its own elasticity can improve the wearing stability and be suitable for users with different head circumferences.

[0040] Two fixed blocks 2 are symmetrically adhered to the left and right sides of the elastic band 1. A groove is provided at the center of each fixed block 2. The inner wall of the groove is made of iron sheet. A plurality of damping blocks 3 are slidably connected in the groove (only one is shown in the figure, and the others are not placed in the groove). Each damping block 3 is a magnet that adsorbs to the inner wall of the groove.

[0041] Two electric telescopic rods 4 are respectively fixedly connected to the centers of the grooves of the corresponding fixed blocks 2. A fixing ring 5 covering the electric telescopic rod 4 is provided outside each electric telescopic rod 4. The fixing ring 5 is fixedly arranged in the corresponding groove. The fixing ring 5 is made of iron sheet like the inner wall of the groove. All the damping blocks 3 can be slidably connected between the fixing ring 5 and the groove. Each electric telescopic rod 4 is electrically connected to a battery. The battery is embedded in the corresponding fixing plate. An installation groove for the battery is provided in the fixing plate. A cover plate 6 is rotatably connected to the end of the installation groove.

[0042] Two rotating rods 7. Each rotating rod 7 is a resilient rod. A disc 8 is integrally formed at the upper end of each rotating rod 7. A placement hole for installing the angle sensor 11 is provided at the center of each disc 8. The two discs 8 are respectively connected to the free ends of the corresponding electric telescopic rods 4. At the same time, each disc 8 is spaced from the corresponding fixed block 2. This spaced space facilitates the user to put the damping block 3 into the groove, thereby realizing the adjustment of the resistance magnitude. A second push rod 9 is welded on the surface of the disc 8. The second push rod 9 extends into the area between the groove and the fixing ring 5. The damping block 3 can be pushed to move through the second push rod 9. A chute 10 is provided on the lower side of each rotating rod 7. The chute 10 penetrates through the bottom of the rotating rod 7.

[0043] An angle sensor 11 is embedded in the placement hole of the corresponding rotating rod 7. The angle sensor 11 is coaxially connected to the free end of the electric telescopic rod 4.

[0044] Two first push rods 12 are respectively slidably connected in the chutes 10 of the corresponding rotating rods 7. A push handle 13 is adhered to the side wall of each first push rod 12. With the help of the push handle 13, it is convenient for the user to drive the first push rod 12 to move or rotate the lower end of the rotating rod 7 through the first push rod 12.

[0045] Two return springs 14 are respectively connected between the upper ends of the first push rods 12 and the inner walls of the chutes 10 of the corresponding rotating rods 7. The clamping and supporting of the user's mandible by the return springs 14, the first push rods 12 and the supporting assembly improves the stability of the support.

[0046] A supporting assembly is used to provide a supporting force for the mandible. In this embodiment, the supporting assembly includes:

[0047] Two connecting rods 15, the two connecting rods 15 are respectively welded to the lower ends of the two first push rods 12, and the straight lines where the two connecting rods 15 are located can intersect after extension to obtain a V-shaped structure.

[0048] Two support plates 16, the two support plates 16 are respectively rotatably connected to the adjacent ends of the two connecting rods 15. The middle parts of the two support plates 16 are rotatably connected to the corresponding ends of the connecting rods 15 through pin shafts, and there is a gap between the two support plates 16. Anti-slip patterns are provided on the inner sides of each support plate 16, which facilitates the contact and support of the support plate 16 with the skin of the lower jaw.

[0049] Two fixed columns 17, the two fixed columns 17 are respectively arranged on the two support plates 16.

[0050] Elastic ring 18, the elastic ring 18 is wrapped between the two fixed columns 17.

[0051] In this embodiment, the electric telescopic rod 4 is electrically connected to a controller 19. The controller 19 is bolted to the rotating rod 7. The controller 19 is also electrically connected to a micro sound device 20. The micro sound device 20 is arranged on the front side wall of the fixed block 2. The controller 19 is electrically connected to the angle sensor 11. At the same time, the controller 19, the electric telescopic rod 4, the micro sound device 20, and the angle sensor 11 in this embodiment are all existing products, and this embodiment does not involve the improvement of the above components.

[0052] The working process of this embodiment is as follows:

[0053] Before use, first wear it at an appropriate position on the user's head through the elastic band 1. The elasticity of the elastic band 1 can be suitable for users with different head circumferences. Then push the first push rod 12 to slide through the push handle 13, so that the support plate 16 is located in front of the user's lower jaw. At this time, rotate the support plate 16 to an appropriate direction so that it can cooperate with the user's lower jaw. When the support plate 16 is released, it can clamp and support the lower jaw under the elastic force of the return spring 14.

[0054] When performing angle measurement and opening and closing training, the user drives the first push rod 12 and the rotating rod 7 to rotate by opening and closing the mouth. After the rotating rod 7 rotates, the angle sensor 11 can monitor the rotation angle and report it through the micro sound device 20, so that the user or the medical staff can know the measurement result. At the same time, when training, the user can adjust the training amplitude according to the rotation angle reported by the micro sound device 20. At the same time, the resistance received by the second push rod 9 during movement can be increased by placing different numbers of damping blocks 3, thereby enhancing the training intensity and improving the training effect and rehabilitation confidence of the user through self-controlled training.

[0055] When performing protrusion and retrusion training of the mandible, the user improves the anteroposterior flexibility and coordination of the mandible by independently performing protrusion and retrusion training. If the user is unable to independently perform protrusion and retrusion training, the user drives the first push rod 12 to move by means of the push handle 13, thereby driving the support plate 16 to move, and driving the mandible to complete protrusion and retrusion training by means of the movement of the support plate 16, so as to improve the training effect.

[0056] When performing lateral movement training, the electric telescopic rod 4 on the corresponding side is started by the controller 19. After the electric telescopic rod 4 is started, it can drive the rotating rod 7, the first push rod 12 and the connecting rod 15 on the corresponding side to move away from the elastic band 1. At this time, due to the clamping and limiting of the mandible by the support plate 16, the contact point between the support plate 16 and the mandible serves as the rotation fulcrum, and the connecting rod 15 and the support plate 16 on this side generate a reverse acting force on the mandible, realizing the lateral training of the mandible. At the same time, the electric telescopic rod 4 can also not be started, and the lower end of the rotating rod 7 on the corresponding side can be pushed by the push handle 13 to drive the mandible on the corresponding side to perform lateral training.

[0057] The above are only embodiments of the present invention, and common knowledge such as specific structures and / or characteristics known in the solution is not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A non-portal temporomandibular joint motion angle measurement and training device, characterized in that: include: An elastic band (1), wherein the elastic band (1) is ring-shaped; Two fixing blocks (2), the two fixing blocks (2) being symmetrically fixedly arranged on both sides of the elastic band (1); Two electric telescopic rods (4), wherein the two electric telescopic rods (4) are respectively arranged on two fixed blocks (2); Two rotating rods (7), the two rotating rods (7) being respectively arranged at the free ends of the electric telescopic rod (4); An angle sensor (11), wherein the angle sensor (11) is embedded in the corresponding rotating rod (7); Two first push rods (12), each of the first push rods (12) being slidably connected to a corresponding rotating rod (7); Two return springs (14), the two return springs (14) being respectively connected between the first push rod (12) and the corresponding rotating rod (7); A support component is used to provide support force to the mandible.

2. A non-portal temporomandibular joint motion angle measurement and training device according to claim 1, characterized in that: The support assembly comprises: Two connecting rods (15), the two connecting rods (15) being respectively connected to the ends of the two first push rods (12); Two support plates (16), the two support plates (16) are rotatably connected to the ends of the connecting rod (15) respectively, and a gap is left between the two support plates (16); Two fixing columns (17), wherein the two fixing columns (17) are respectively arranged on two supporting plates (16); An elastic ring (18), wherein the elastic ring (18) is wrapped between the two fixing columns (17).

3. The non-portal temporomandibular joint motion angle measurement and training device according to claim 1, characterized in that: The rotating rod (7) is provided with a second push rod (9), the fixed plate is provided with a groove for the second push rod (9) to rotate, the inner wall of the groove is made of iron, a plurality of damping blocks (3) located on the second push rod (9) are slidably connected in the groove, and each of the damping blocks (3) uses a magnet that is attracted to the inner wall of the groove.

4. A non-portal temporomandibular joint motion angle measurement and training device according to any one of claims 1 to 3, characterized in that: The electric telescopic rod (4) is electrically connected to a controller (19), and the controller (19) is arranged on the rotating rod (7). The controller (19) is also electrically connected to a micro-speaker (20), and the micro-speaker (20) is arranged on the side wall of the fixed block (2). The controller (19) is electrically connected to the angle sensor (11).

5. The non-portal temporomandibular joint motion angle measurement and training device according to claim 4, characterized in that: Each of the first push rods (12) is provided with a push handle (13).

6. The non-portal temporomandibular joint motion angle measurement and training device according to claim 4, characterized in that: The inner side of the support plate (16) is provided with anti-slip patterns.

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