Multifunctional mandibular rehabilitation exercise trainer

Abstract

The present application belongs to the field of medical apparatus. A multifunctional mandibular rehabilitation exercise trainer is characterized in that it comprises a main body assembly and replaceable assemblies; the replaceable assemblies are at least one of a first training assembly for mouth opening training, a second training assembly for mandibular protrusion training and a third training assembly for mandibular lateral movement training, the first training assembly, the second training assembly and the third training assembly each comprise a maxillary positioning plate and a mandibular positioning plate; the main body assembly comprises a movable side arm and a static side arm which are hingedly connected to each other; the main body assembly further comprises a translation transmission mechanism for driving any one of the maxillary positioning plate and the mandibular positioning plate to move horizontally; and the movable side arm is connected to one of the maxillary positioning plate and the mandibular positioning plate. The exercise trainer further comprises a sensor for detecting the relative movement displacement of the maxillary positioning plate and the mandibular positioning plate. The present application realizes the three functions of mouth opening, mandibular protrusion and mandibular lateral movement by using replaceable assemblies.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a mandibular rehabilitation trainer. Background Technology

[0002] Patients who have undergone oral and maxillofacial surgery or radiotherapy often experience limited mandibular movement due to postoperative bone adhesions and soft tissue contractures, or fibrosis of the masticatory muscles and temporomandibular joint caused by radiotherapy. This manifests as limited mouth opening, mandibular protrusion, and lateral movement, affecting normal speech, eating, and other functions. For these patients, mandibular movement rehabilitation training helps the bone tissue and masticatory muscles adapt to the new range of motion, promotes tissue healing, strengthens masticatory muscles, improves mandibular movement, and enhances the patient's quality of life.

[0003] In clinical practice, the rehabilitation training of patients' mandibular movements mainly adopts hand-assisted mouth opening training and voluntary mandibular protrusion and left and right lateral movements.

[0004] Currently, common assistive training devices are mainly mouth-opening trainers (such as the oral cavity opener disclosed in CN101301249A), which can only achieve passive mouth-opening training. Chinese patent CN213759288U discloses a digital mandibular protrusion movement assistive training device, whose function is limited to protrusion.

[0005] Currently, there is a lack of an auxiliary training device that can simultaneously integrate three functions: mouth opening, mandibular protrusion, and mandibular lateral movement, to meet the needs of mandibular movement rehabilitation training for patients after oral and maxillofacial surgery or radiotherapy, and to improve the effectiveness of rehabilitation training. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a multifunctional mandibular rehabilitation exercise trainer, which solves at least one of the above-mentioned technical problems.

[0007] The technical solution of the present invention is: a multifunctional mandibular rehabilitation exercise trainer, characterized in that it includes a main body component and replaceable components;

[0008] The replaceable component is at least one of a first training component for mouth opening training, a second training component for mandibular protrusion training, and a third training component for mandibular lateral movement training. The first training component, the second training component, and the third training component all include a maxillary positioning plate and a mandibular positioning plate.

[0009] The main body assembly includes a movable side arm and a stationary side arm that are hinged to each other;

[0010] The main component also includes a translation transmission mechanism for driving either the maxillary positioning plate or the mandibular positioning plate to perform translational movement.

[0011] The translation transmission mechanism includes a guide sleeve and a sliding rod that are slidably connected. The sliding rod is hinged to the moving side arm via a connecting rod.

[0012] The guide sleeve is installed on the stationary side arm;

[0013] Furthermore, the movable side arm is connected to one of the maxillary positioning plate and the mandibular positioning plate, and the other of the maxillary positioning plate and the mandibular positioning plate is connected to the sliding rod.

[0014] This invention utilizes replaceable components to achieve three functions: mouth opening, mandibular protrusion, and mandibular lateral movement. Different maxillary and mandibular positioning plates are replaced during different functional training sessions, thereby transforming the articulated movements of the moving and stationary arms into translational movements of the maxillary or mandibular positioning plates for rehabilitation training.

[0015] More preferably, it also includes a sensor for detecting the relative movement displacement between the maxillary positioning plate and the mandibular positioning plate.

[0016] More preferably, the sensor is an infrared distance sensor;

[0017] The infrared distance sensor is installed on the guide sleeve, and the detection direction of the infrared distance sensor is towards the maxillary positioning plate or mandibular positioning plate connected to the sliding rod.

[0018] More preferably, both the maxillary positioning plate and the mandibular positioning plate include sequentially connected tooth occlusion limiting grooves, reversing rods, and connecting mounting parts;

[0019] The connecting mounting part is used for detachable installation to the sliding rod or the movable side arm;

[0020] When the tooth occlusal limiting grooves of the maxillary positioning plate and the mandibular positioning plate are aligned vertically, the connecting mounting parts of the maxillary positioning plate and the mandibular positioning plate abut against each other.

[0021] More preferably, the sliding rod and the stationary side arm are provided with extensions arranged side by side along the sliding guiding direction of the guide sleeve.

[0022] More preferably, when the multifunctional mandibular rehabilitation exercise trainer is used for mouth opening training, the first training component is detachably connected to the main body component;

[0023] The maxillary positioning plate and the mandibular positioning plate of the first training component are respectively the first maxillary positioning plate and the first mandibular positioning plate;

[0024] The first maxillary positioning plate is connected to the sliding rod, and the first mandibular positioning plate is connected to the stationary arm.

[0025] More preferably, the tooth occlusal limiting grooves of the first maxillary positioning plate and the first mandibular positioning plate are arranged in a direction parallel to the sliding guiding direction of the guide sleeve.

[0026] More preferably, when the multifunctional mandibular rehabilitation exercise trainer is used for mandibular protrusion training, the second training component is detachably connected to the main body component;

[0027] The maxillary positioning plate and the mandibular positioning plate of the second training component are respectively the second maxillary positioning plate and the second mandibular positioning plate;

[0028] The second maxillary positioning plate is connected to the static side arm, and the second mandibular positioning plate is connected to the sliding rod.

[0029] More preferably, the second mandibular positioning plate includes a second mandibular tooth occlusal limiting groove, a second lower reversing rod, and a second lower connecting mounting part connected in sequence;

[0030] The second maxillary positioning plate includes a second maxillary tooth occlusal limiting groove, a second upper reversing rod, and a second upper connecting mounting part connected in sequence;

[0031] The second lower connecting mounting part and the second upper connecting mounting part are vertically arranged;

[0032] The second lower reversing rod is provided with a limiting groove for limiting the second upper connecting mounting part, and the second upper connecting mounting part moves translationally within the limiting groove.

[0033] More preferably, the tooth occlusal limiting grooves of the second maxillary positioning plate and the second mandibular positioning plate are arranged perpendicular to the sliding guiding direction of the guide sleeve.

[0034] More preferably, when the multifunctional mandibular rehabilitation exercise trainer is used for mandibular lateral movement training, the third training component is detachably connected to the main body component;

[0035] The maxillary positioning plate and the mandibular positioning plate of the third training component are respectively the third maxillary positioning plate and the third mandibular positioning plate;

[0036] The third maxillary positioning plate is connected to the static side arm, and the third mandibular positioning plate is connected to the sliding rod.

[0037] More preferably, the tooth occlusal limiting grooves of the third maxillary positioning plate and the third mandibular positioning plate are arranged perpendicular to the sliding guiding direction of the guide sleeve.

[0038] Beneficial effects: This invention solves the problems of existing rehabilitation training methods, such as difficulty in implementation, insufficient intensity, and difficulty in maintaining the movement when the jaw has the largest range of motion.

[0039] This invention enables simultaneous mouth opening, mandibular protrusion, and mandibular lateral movement rehabilitation training on a single functional rehabilitation trainer. With the assistance of this invention, patients can ensure they perform mandibular movement rehabilitation training correctly, maintain the maximum range of mandibular movement for a sufficient duration, and have sensors monitor the range of movement in real time, allowing patients to monitor the effectiveness of their rehabilitation training. It demonstrates how the same device can achieve three different movement dimensions—mouth opening, mandibular protrusion, and mandibular lateral movement—through unidirectional movement.

[0040] This invention addresses the key points of mandibular motor function rehabilitation training, solves existing problems in rehabilitation training, maximizes the improvement of mandibular motor function in patients after oral and maxillofacial surgery or radiotherapy, shortens patients' recovery time, reduces the impact of improper rehabilitation training on eating and speech functions caused by mandibular motor dysfunction, ensures surgical results, improves patients' quality of life, and reduces patients' medical burden. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of a structure for installing the initial first training component on the main component in a specific embodiment 1 of the present invention;

[0042] Figure 2 This is a schematic diagram of a structure for installing the intermediate first training component on the main component in a specific embodiment 1 of the present invention;

[0043] Figure 3 This is a schematic diagram of a structure in which the second training component is installed on the main component in a specific embodiment 2 of the present invention;

[0044] Figure 4 This is a schematic diagram of a structure in which the left-side exercise training component is installed on the main component of a specific embodiment 3 of the present invention;

[0045] Figure 5 This is a schematic diagram of a structure in which the right-side exercise training component is installed on the main component of a specific embodiment 3 of the present invention.

[0046] In the diagram: 1 is the moving arm, 2 is the stationary arm, 3 is the guide sleeve, 4 is the sliding rod, 5 is the connecting rod, 61 is the first maxillary positioning plate, 62 is the second maxillary positioning plate, 63 is the third maxillary positioning plate, 71 is the first mandibular positioning plate, 72 is the second mandibular positioning plate, 73 is the third mandibular positioning plate, and 8 is the sensor.

[0047] 611 is the first maxillary tooth occlusal limiting groove, 612 is the first upper reversing rod, and 613 is the first upper connecting mounting part;

[0048] 621 is the second maxillary tooth occlusal limiting groove, 622 is the second upper reversing rod, and 623 is the second upper connecting mounting part;

[0049] 631 is the third maxillary tooth occlusal limiting groove, 632 is the third upper reversing rod, and 633 is the third upper connecting mounting part;

[0050] 711 is the first mandibular tooth occlusal limiting groove, 712 is the first lower reversing rod, and 713 is the first lower connecting mounting part.

[0051] 721 is the second mandibular tooth occlusal limiting groove, 722 is the second lower reversing rod, and 723 is the second lower connecting mounting part.

[0052] 731 is the third mandibular tooth occlusal limiting groove, 732 is the third lower reversing rod, and 733 is the third lower connecting mounting part. Detailed Implementation

[0053] See Figure 1 as well as Figure 2 Specific embodiment 1: A multifunctional mandibular rehabilitation exercise trainer includes a main body component and replaceable components. The replaceable components are at least one of a first training component for mouth opening training, a second training component for mandibular protrusion training, and a third training component for mandibular lateral movement training. The first, second, and third training components all include a maxillary positioning plate and a mandibular positioning plate. The main body component includes a movable arm 1 and a stationary arm 2 that are hinged together. Both the movable and stationary arms are V-shaped, and their bends are hinged together. The bend refers to the angle of the V-shape.

[0054] The main component also includes a translational transmission mechanism for moving either the maxillary positioning plate or the mandibular positioning plate. The translational transmission mechanism includes a guide sleeve 3 and a sliding rod 4 that are slidably connected. The sliding rod 4 is hinged to the moving arm 1 via a connecting rod 5. The guide sleeve 3 is mounted on the stationary arm. The moving arm 1 is connected to one of the maxillary and mandibular positioning plates, and the other of the maxillary and mandibular positioning plates is connected to the sliding rod 4. It also includes a sensor 8 for detecting the relative displacement between the maxillary and mandibular positioning plates. The sensor is an infrared distance sensor; the infrared distance sensor is mounted on the guide sleeve 3, and its detection direction is towards the maxillary or mandibular positioning plate connected to the sliding rod 4.

[0055] This invention employs replaceable components, allowing for the replacement of different maxillary and mandibular positioning plates during different functional training sessions. This enables the articulation of the moving arm 1 and the stationary arm to be transformed into translational movement of the maxillary or mandibular positioning plate for rehabilitation training.

[0056] Both the maxillary positioning plate and the mandibular positioning plate include sequentially connected tooth occlusal limiting grooves, reversing rods, and connecting mounting parts; the connecting mounting parts are used for detachable installation to the sliding rod 4 or the movable side arm 1;

[0057] When the tooth occlusal limiting grooves of the maxillary positioning plate and the mandibular positioning plate are aligned vertically, the connecting mounting parts of the maxillary positioning plate and the mandibular positioning plate abut against each other.

[0058] The tooth occlusion groove is U-shaped and includes an inner U-shaped curved plate and an outer U-shaped curved plate. The inner side of the center of the inner U-shaped curved plate is connected to a ramp that slopes from the inside out from the adjacent sides of the maxillary positioning plate and the mandibular positioning plate toward the groove opening of the tooth occlusion groove.

[0059] The sliding rod 4 and the stationary side arm 2 are provided with extensions arranged side by side along the sliding guide direction of the guide sleeve 3.

[0060] When the multifunctional mandibular rehabilitation exercise trainer is used for mouth opening training, a first training component is detachably connected to the main body component; the maxillary positioning plate and the mandibular positioning plate of the first training component are respectively the first maxillary positioning plate 61 and the first mandibular positioning plate 71; the first maxillary positioning plate 61 is connected to the sliding rod 4, and the first mandibular positioning plate 71 is connected to the static arm 2. The tooth occlusal limiting grooves of the first maxillary positioning plate 61 and the first mandibular positioning plate 71 are arranged in a direction parallel to the sliding guidance direction of the guide sleeve 3.

[0061] The first maxillary positioning plate 61 includes a first maxillary tooth occlusal limiting groove 611, a first upper reversing rod 612, and a first upper connecting mounting part 613 connected in sequence. The first mandibular positioning plate 71 includes a first mandibular tooth occlusal limiting groove 711, a first lower reversing rod 712, and a first lower connecting mounting part 713 connected in sequence.

[0062] The first training component consists of two sets: the initial first training component and the intermediate first training component.

[0063] Both the initial first training component and the intermediate first training component have a straight lower commutator 712 structure.

[0064] The first upper commutator 612 of the initial first training component is a straight rod structure parallel to the lower straight rod structure. The first upper commutator 612 of the intermediate first training component is a straight rod structure with an angle to the lower straight rod structure.

[0065] When the first upper connecting mounting part 613 of the initial first training component abuts against the first lower connecting mounting part 713, the first maxillary tooth occlusal limiting groove 611 abuts against the first mandibular tooth occlusal limiting groove 711. The range of motion of the first maxillary tooth occlusal limiting groove 611 relative to the first mandibular tooth occlusal limiting groove 711 is 20mm. The initial first training component enables training of the mouth opening range from 0-20mm. It is suitable for mandibular mouth opening rehabilitation training for patients within one month post-surgery.

[0066] When the first upper connecting mounting part 613 and the first lower connecting mounting part 713 of the intermediate first training component abut against each other, the distance between the first maxillary tooth occlusal limiting groove 611 and the first mandibular tooth occlusal limiting groove 711 is 20mm. The intermediate first training component enables training of mouth opening amplitude from 20mm to 40mm. It is suitable for mandibular mouth opening rehabilitation training for patients 1 to 6 months post-surgery.

[0067] See Figure 3 In specific embodiment 2, based on specific embodiment 1, when the multifunctional mandibular rehabilitation exercise trainer is used for mandibular protrusion training, a second training component is detachably connected to the main body component; the maxillary positioning plate and mandibular positioning plate of the second training component are respectively the second maxillary positioning plate 62 and the second mandibular positioning plate 72; the second maxillary positioning plate 62 is connected to the static arm 2, and the second mandibular positioning plate 72 is connected to the sliding rod 4. The second mandibular positioning plate 72 includes a second mandibular tooth occlusal limiting groove 721, a second lower reversing rod 722, and a second lower connecting mounting part 723 connected in sequence; the second maxillary positioning plate 62 includes a second maxillary tooth occlusal limiting groove 621, a second upper reversing rod 622, and a second upper connecting mounting part 623 connected in sequence; the second lower connecting mounting part 723 and the second upper connecting mounting part 623 are vertically arranged; the second lower reversing rod 722 is provided with a limiting groove for limiting the second upper connecting mounting part 623, and the second upper connecting mounting part 623 moves translationally within the limiting groove. The tooth occlusal limiting grooves of the second maxillary positioning plate 62 and the second mandibular positioning plate 72 are arranged perpendicular to the sliding guiding direction of the guide sleeve 3.

[0068] The second upper reversing connecting rod and the second lower reversing connecting rod are arranged vertically. When the side of the second upper connecting mounting part 623 away from the guide sleeve 3 abuts against the limiting groove, the second maxillary tooth occlusal limiting groove 621 and the second mandibular tooth occlusal limiting groove 721 are arranged vertically, with the second mandibular tooth occlusal limiting groove 721 in its initial position. When the side of the second upper connecting mounting part 623 adjacent to the guide sleeve 3 abuts against the limiting groove, the second mandibular tooth occlusal limiting groove 721 slides to its limit position. The distance difference between the initial position and the limit position is 10mm.

[0069] See Figure 4 as well as Figure 5In specific embodiment 3, based on specific embodiment 1, when the multifunctional mandibular rehabilitation exercise trainer is used for mandibular lateral movement training, a third training component is detachably connected to the main body component; the maxillary positioning plate and mandibular positioning plate of the third training component are respectively the third maxillary positioning plate 63 and the third mandibular positioning plate 73; the third maxillary positioning plate 63 is connected to the static arm 2, and the third mandibular positioning plate 73 is connected to the sliding rod 4. The tooth occlusal limiting grooves of the third maxillary positioning plate 63 and the third mandibular positioning plate 73 are arranged perpendicular to the sliding guiding direction of the guide sleeve 3. A limiting block is provided on the side of the third mandibular positioning plate 73 adjacent to the sliding rod 4. The limiting block is used to limit the lateral distance between the third maxillary positioning plate 63 and the third mandibular positioning plate 73. When the side of the third maxillary positioning plate 63 away from the sliding rod 4 abuts against the third maxillary positioning plate 63, the third maxillary positioning plate 63 and the third mandibular positioning plate 73 are arranged vertically. When the limiting block abuts against the guide sleeve 3, the distance between the third maxillary positioning plate 63 and the third mandibular positioning plate 73 in the left and right directions is 10mm.

[0070] The third maxillary positioning plate 63 includes a third maxillary tooth occlusal limiting groove 631, a third upper reversing rod 632, and a third upper connecting mounting part 633 connected in sequence. The third mandibular positioning plate 73 includes a third mandibular tooth occlusal limiting groove 731, a third lower reversing rod 732, and a third lower connecting mounting part 733 connected in sequence. The third upper reversing rod 632 and the third lower reversing rod 732 are both L-shaped, and the third upper connecting mounting part 633 is perpendicular to the third upper reversing rod 632. The third lower connecting mounting part 733 is perpendicular to the third lower reversing rod 732. The third maxillary tooth occlusal limiting groove 631 and the third mandibular tooth occlusal limiting groove 731 of the third maxillary positioning plate 63 and the third mandibular positioning plate 73 are tightly attached vertically. The third upper reversing rod 632 and the third lower reversing rod 732 are tightly attached vertically. The third upper connecting mounting part 633 and the third lower connecting mounting part 733 are arranged adjacent to each other in the left-right direction.

[0071] The third training component has two sets of mirror-symmetrical settings. One set is a left-side movement training component for moving the mandible to the left, and the other set is a right-side movement training component for moving the mandible to the right.

[0072] When using the left-side exercise training component, the hinged connection between the movable arm 1 and the stationary arm 2 causes the third mandibular positioning plate 73 to slide to the left. When the limiting block abuts against the guide sleeve 3, the training limit position is reached. Preferably, the range of motion of the third mandibular positioning plate 73 is 10mm. At this time, the stationary arm 2 is located on the right side, and the movable arm 1 is located on the left side.

[0073] When using the right-side exercise training component, the hinged connection between the movable arm 1 and the stationary arm 2 causes the third mandibular positioning plate 73 to slide to the right. When the limiting block abuts against the guide sleeve 3, the training limit position is reached. Preferably, the range of motion of the third mandibular positioning plate 73 is 10mm. At this time, the stationary arm 2 is located on the left side, and the movable arm 1 is located on the right side.

[0074] The gripping areas of the stationary arm 2 and the moving arm 1 are equipped with pressure membranes for sensing gripping force. The force exerted on the teeth is determined by the pressure of the pressure membranes. Training stops when the force of the pressure membranes exceeds a set range.

[0075] How to use:

[0076] Patients undergoing oral and maxillofacial surgery or radiotherapy can use the multifunctional mandibular rehabilitation trainer 7 days after the operation.

[0077] The sequence of each rehabilitation training exercise is as follows: mouth opening exercise, mandibular protrusion exercise, and lateral movement exercise.

[0078] During mouth opening training, connect the first training component to the main component. Start with a small amplitude and slowly open your mouth until you feel a slight soreness in your muscles. Hold for 30 seconds, then slowly close your mouth. Repeat the opening and closing movements. Each exercise should last at least 10 minutes. Increase the amplitude by 1 millimeter each time. When the patient does not feel soreness when performing rehabilitation training at the current amplitude, increase the amplitude by 1 millimeter and start training for the new rehabilitation target value.

[0079] When performing jaw protrusion training, use the second training component connected to the main component. Start with a small amplitude and slowly protrude the jaw forward until the muscles feel slightly sore. Hold for 30 seconds, then slowly retract the jaw. Repeat the above jaw protrusion and retraction movements. Each exercise should last at least 10 minutes.

[0080] When training the mandibular lateral movement, use the third training component. Start with small movements, slowly moving the mandible from its natural occlusion position to the left or right until you feel a slight soreness in the muscles. Hold for 30 seconds, then slowly return the mandible from its maximum lateral movement position to its natural occlusion position. Alternate between left and right lateral movements, and each left and right lateral movement training session should last at least 10 minutes.

[0081] For patients who have undergone unilateral surgery, the focus of mandibular lateral movement training should be on moving from the surgical side to the non-surgical side.

[0082] For patients who have undergone bilateral surgery, when training the lateral mandibular movement, the left and right movement training components should be used alternately to perform balanced training on both sides.

[0083] Based on the patient's recovery progress, gradually increase the range of motion of the mandible in all directions until the patient's voluntary mandibular movement reaches the ideal range of motion.

[0084] The cumulative daily usage time should not be less than 1 hour. It can be used intermittently according to daily life conditions, and each continuous use should last at least 10-15 minutes.

[0085] Specifically, patients can begin mandibular movement rehabilitation training one week after surgery:

[0086] Mouth opening training: Based on the patient's maximum mouth opening before starting training, with 29 mm as the target value for one month post-surgery, the weekly rehabilitation training target value is broken down, and the target training range to be achieved each week within one month post-surgery is calculated. (For example, if the patient's maximum mouth opening before starting training is 25 mm, then the target values ​​to be achieved each week within one month are 25 mm, 27 mm, 27 mm, and 29 mm respectively.) Based on the patient's initial mouth opening value and considering their own feelings, the increase is 2 mm each time. If the patient does not feel soreness while performing rehabilitation training at the current range, the relative displacement value of the upper and lower jaws in the mouth opening training is increased by 2 mm, and so on, until the rehabilitation target for one month post-surgery is reached. If the target value is reached ahead of schedule, the next stage of the rehabilitation training plan can be implemented earlier.

[0087] The training plan, spanning 8 weeks from the 2nd to the 3rd month post-surgery, uses the patient's maximum mouth opening achieved one month post-surgery as the starting point and a target value of 34 mm as the calculation (e.g., if the patient achieves a maximum mouth opening of 29 mm at one month, the target values ​​for each week over the next 3 months are 29 mm, 29 mm, 31 mm, 31 mm, 31 mm, 33 mm, 33 mm, and 34 mm, respectively). After three months of training, the rules for increasing the range of mouth opening are the same as those for the first month post-surgery, ultimately aiming to achieve a mouth opening ≥37 mm by the 6th month post-surgery.

[0088] Mandibular protrusion and lateral mandibular extension training: Based on the patient's initial range of motion, the range of motion is increased by 1 mm each time. If the patient experiences no soreness during rehabilitation training at the current range, the range is increased by 1 mm, and training begins with the new rehabilitation target value. The ultimate goal is to achieve a maximum lateral and mandibular protrusion range of >7 mm at 6 months post-surgery. (For example, if the patient's maximum mandibular protrusion and lateral mandibular extension range is 0 mm one week post-surgery, and 4 mm is taken as the target value for mandibular protrusion and lateral mandibular extension within one month post-surgery, then the target values ​​to be achieved weekly are 1 mm, 2 mm, 3 mm, and 4 mm respectively.) If the patient experiences no soreness during rehabilitation training, the range of motion can be increased by 1 mm for the next rehabilitation training. This rule is followed to achieve the goal of a maximum lateral and mandibular protrusion range of >7 mm at 6 months post-surgery. Later, to determine the maximum range of motion for mouth opening training at 1 month and 3 months post-surgery, the sample size can be increased, and raw data collected using the rehabilitation training system can be used for further adjustments.

[0089] In specific embodiment 4, based on specific embodiments 1, 2 or 3, a multifunctional mandibular rehabilitation exercise trainer includes a data acquisition module. The data acquisition module is used to collect training data generated by the moving arm and the stationary arm in real time during operation. The training data includes mandibular displacement data and mandibular force data in each training movement.

[0090] A multifunctional mandibular rehabilitation exercise trainer includes a data processing module, which includes:

[0091] An action timing unit is used to obtain the duration of each training action;

[0092] The data statistics unit is used to count the number of times various training actions are executed within a preset time period and generate statistical data as prompt information.

[0093] A data storage unit, wherein the data storage unit is used to store the training data and the statistical data;

[0094] An alarm unit is used to generate an alarm message as a prompt when any of the statistical data and the training data triggers a preset condition.

[0095] The following are some alarm triggering conditions used in practice:

[0096] Triggering condition 1: During mouth opening training, the relative displacement of the upper and lower jaws exceeds 40 mm; during mandibular protrusion training, the relative displacement exceeds 10 mm; or during mandibular lateralization training, the relative displacement exceeds 10 mm. In this case, the relative displacement of the upper and lower jaws has reached the upper limit of the average relative displacement data of healthy individuals during mouth opening, mandibular protrusion, and mandibular lateralization. If the patient performs this excessive range of motion during training, it will cause training injury.

[0097] Triggering condition 2: The duration of a single round of rehabilitation training is less than 10 minutes, or the total duration of rehabilitation training within 24 hours is less than 60 minutes. In this case, the patient's training time in a single round of rehabilitation training or the cumulative training time within a day is insufficient, and the overall training volume cannot achieve the therapeutic goal of fully exercising the relative displacement of the upper and lower jaws.

[0098] Triggering condition 3: When the mouth opening, forward protrusion, and left and right lateral movements are at their maximum range, the maximum range is maintained for less than 30 seconds, or the relative displacement of the upper and lower jaws is less than the relative displacement value of the upper and lower jaws specified in the current training plan; under these circumstances, the patient's single training movement fails to meet the standard and cannot achieve the training effect corresponding to that training movement.

[0099] Triggering conditions 1 and 2 are determined by logical operations based on the training data (i.e., the displacement data and force data of the upper and lower jaws in each training action) to determine whether they are triggered. Triggering condition 3 is determined by reading the computer's internal clock through the alarm unit, calculating the total training time accumulated over 24 hours, and the continuous training time of each round of rehabilitation training, and then performing logical operations to determine whether it is triggered.

[0100] The data acquisition module includes an infrared distance sensor and a pressure sensor. The pressure sensor is a pressure diaphragm, which is disposed on the surface of the handhold of the moving and stationary arms. The pressure conversion process using the pressure diaphragm is as follows: Assuming there are 1, 2, ..., n force points on the pressure diaphragm, the force on the handhold is measured through the pressure diaphragm. The handhold experiences external forces F1, F2, ..., Fn, and the distances between these forces and the midpoints of rotation of the moving and stationary arms are d1, d2, ..., dn, respectively. The resultant force on the jaw is Ft, and the distance from the midpoints of rotation of the moving and stationary arms is dt. According to the requirements of static equilibrium, ... but The magnitude of the force on the gum is equal to Ft, and the direction of the force is opposite to Ft.

[0101] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional mandibular rehabilitation exercise trainer, characterized in that, It includes a main component and replaceable components; The replaceable components are a first training component for mouth opening training, a second training component for mandibular protrusion training, and a third training component for mandibular lateral movement training. The first training component, the second training component, and the third training component all include a maxillary positioning plate and a mandibular positioning plate. The main body assembly includes a movable side arm and a stationary side arm that are hinged to each other; The main component also includes a translation transmission mechanism for driving either the maxillary positioning plate or the mandibular positioning plate to perform translational movement. The translation transmission mechanism includes a guide sleeve and a sliding rod that are slidably connected. The sliding rod is hinged to the moving side arm via a connecting rod. The guide sleeve is installed on the stationary side arm; Furthermore, the static side arm is connected to one of the maxillary positioning plate and the mandibular positioning plate, and the other of the maxillary positioning plate and the mandibular positioning plate is connected to the sliding rod; The tooth occlusal grooves of the maxillary positioning plate and mandibular positioning plate of the first training component are arranged in a direction parallel to the sliding guiding direction of the guide sleeve. The tooth occlusal limiting grooves of the maxillary positioning plate and mandibular positioning plate of the second training component are arranged perpendicular to the sliding guiding direction of the guide sleeve, and the maxillary positioning plate and mandibular positioning plate of the second training component are directly opposite the opening direction of the guide sleeve. The tooth occlusal limiting grooves of the maxillary positioning plate and mandibular positioning plate of the third training component are arranged perpendicular to the sliding guiding direction of the guide sleeve, and the maxillary positioning plate and mandibular positioning plate of the third training component are located to the side of the guide sleeve.

2. The multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: It also includes a sensor for detecting the relative movement and displacement of the maxillary positioning plate and the mandibular positioning plate.

3. The multifunctional mandibular rehabilitation exercise trainer according to claim 2, characterized in that: The sensor is an infrared distance sensor; The infrared distance sensor is installed on the guide sleeve, and the detection direction of the infrared distance sensor is towards the maxillary positioning plate or mandibular positioning plate connected to the sliding rod.

4. The multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: Both the maxillary positioning plate and the mandibular positioning plate include sequentially connected tooth occlusion limiting grooves, reversing rods, and connecting mounting parts. The connecting mounting part is used for detachable installation to the sliding rod or the stationary side arm; When the tooth occlusal limiting grooves of the maxillary positioning plate and the mandibular positioning plate are aligned vertically, the connecting mounting parts of the maxillary positioning plate and the mandibular positioning plate abut against each other.

5. A multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: The sliding rod and the stationary side arm are provided with extensions arranged side by side along the sliding guiding direction of the guide sleeve.

6. A multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: When the multifunctional mandibular rehabilitation exercise trainer is used for mouth opening training, the first training component can be detachably connected to the main body component; The maxillary positioning plate and the mandibular positioning plate of the first training component are respectively the first maxillary positioning plate and the first mandibular positioning plate; The first maxillary positioning plate is connected to the sliding rod, and the first mandibular positioning plate is connected to the stationary arm.

7. A multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: When the multifunctional mandibular rehabilitation exercise trainer is used for mandibular protrusion training, the second training component can be detachably connected to the main body component; The maxillary positioning plate and the mandibular positioning plate of the second training component are respectively the second maxillary positioning plate and the second mandibular positioning plate; The second maxillary positioning plate is connected to the static side arm, and the second mandibular positioning plate is connected to the sliding rod.

8. A multifunctional mandibular rehabilitation exercise trainer according to claim 7, characterized in that: The second mandibular positioning plate includes a second mandibular tooth occlusal limiting groove, a second lower reversing rod, and a second lower connecting mounting part connected in sequence; The second maxillary positioning plate includes a second maxillary tooth occlusal limiting groove, a second upper reversing rod, and a second upper connecting mounting part connected in sequence; The second lower connecting mounting part and the second upper connecting mounting part are vertically arranged; The second lower reversing rod is provided with a limiting groove for limiting the second upper connecting mounting part, and the second upper connecting mounting part moves translationally within the limiting groove.

9. A multifunctional mandibular rehabilitation exercise trainer according to claim 1, characterized in that: When the multifunctional mandibular rehabilitation exercise trainer is used for mandibular lateral movement training, the third training component can be detachably connected to the main body component; The maxillary positioning plate and the mandibular positioning plate of the third training component are respectively the third maxillary positioning plate and the third mandibular positioning plate; The third maxillary positioning plate is connected to the static side arm, and the third mandibular positioning plate is connected to the sliding rod.

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