Intelligent temporal-mandibular joint postoperative rehabilitation training device with hot compress physical therapy function

Abstract

The invention discloses an intelligent temporomandibular joint postoperative rehabilitation training device with a hot compress physiotherapy function, and relates to the field of medical instruments, the intelligent temporomandibular joint postoperative rehabilitation training device comprises a fixing hoop, a cover body and a connecting frame; an adjusting rod is movably installed at the bottom of the extra-oral module, racks are movably installed at the positions, at the two ends of the gear, in the extra-oral module, conical rods are fixedly connected to the tops of the racks, scissor shafts are movably installed on the sides, close to each other, of the two shaft rods, and mouth openers are fixedly connected to the tops of the two supports; cover bodies are fixedly connected to the two sides of the bottom of the fixing hoop, heating pieces are arranged on the inner sides of the cover bodies, and electrode plates are arranged on the inner sides of the heating pieces. According to the device, the functions of opening training, hot compress and physical massage are integrated, the training, namely the physical therapy synergistic effect is achieved, the opening amplitude is quantitatively controlled through the scale dial and the precise transmission structure, the comfort degree is improved through the humanized design, home use is facilitated, the cost is saved, and the compliance and the rehabilitation effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of medical devices, specifically an intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function. Background Technology

[0002] The temporomandibular joint (TMJ) is a crucial joint connecting the skull and mandible. Postoperative functional recovery requires gradual restoration of mouth opening and relief of muscle spasms through scientific rehabilitation training. TMS postoperative rehabilitation trainers are medical devices specifically designed for this purpose. Their core function is to assist patients in passive mouth opening training. They are often combined with physical therapy to help improve joint mobility and promote postoperative tissue repair. These devices are essential for ensuring surgical outcomes and shortening the recovery period.

[0003] Currently, most existing temporomandibular joint postoperative rehabilitation training devices only have a single opening support function and are not integrated with physical therapy functions such as hot compress and electrotherapy. Patients need to use other tools, which makes the process cumbersome and the rehabilitation efficiency unsatisfactory. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent temporomandibular joint postoperative rehabilitation trainer with heat therapy function, in order to solve the problems of existing technologies that have limited functions, require patients to use other tools, have complicated procedures, and have unsatisfactory rehabilitation efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent temporomandibular joint postoperative rehabilitation trainer with heat therapy function, comprising a fixing hoop, a cover, and a connecting frame; an extraoral module is fixedly connected to the bottom of the connecting frame, an adjusting rod is movably installed at the bottom of the extraoral module, a gear is fixedly connected to the periphery of the adjusting rod, a rack is movably installed inside the extraoral module at both ends of the gear, a conical rod is fixedly connected to the top of the rack, a shaft is movably installed on the inner side wall of the extraoral module, a scissor shaft is movably installed on the side of the two shafts that are close to each other, a bracket is provided at the top of the scissor shaft, two brackets are provided, and an opening device is fixedly connected to the top of each of the two brackets; a cover is fixedly connected to both sides of the bottom of the fixing hoop, a heating element is provided inside the cover, and an electrode is provided inside the heating element.

[0006] Preferably, a snap ring is fixedly connected to the bottom of the external module, and a limit ring is movably installed around the snap ring.

[0007] Preferably, the adjusting rod has a bolt hole inside, and a positioning bolt is movably installed at one end of the limiting ring, and the positioning bolt is threadedly connected to the bolt hole.

[0008] Preferably, the limiting ring has a groove inside, and the buckle ring fits into the groove.

[0009] Preferably, a scale dial is provided on the outer side of the limiting ring.

[0010] Preferably, the tapered rod is located inside the scissor shaft, and the gear meshes with the rack.

[0011] Preferably, the connecting frame extends through the cover, and a fixing bolt is movably installed between the cover and the connecting frame.

[0012] Preferably, a control module is provided at the bottom of the external module, and a power interface is provided at the bottom of the external module on one side of the control module.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This invention integrates the opening training function of the opening device with the heat therapy function of the heating pad inside the cover and the physical massage function of the electrode pad, achieving a synergistic effect of "training as physiotherapy". The entire rehabilitation process can be completed without multiple tools, which greatly facilitates patients' home use and significantly saves time and economic costs. At the same time, with the help of warmth and electric pulse massage, it effectively relieves muscle tension and pain during training, improves patient comfort, and thus improves compliance with rehabilitation training, ensuring the final rehabilitation effect.

[0015] 2. This invention utilizes a graduated dial on a limiting ring, combined with a precise transmission structure involving an adjusting rod, gears, and racks, to quantify and precisely control the opening and closing range of the mouth opener. This facilitates doctors in developing personalized training plans and tracking treatment effectiveness. The control module supports multi-level adjustment of heat therapy and physiotherapy parameters, adapting to different rehabilitation stages and patient tolerance levels, making treatment more scientific and safer. Furthermore, the support structure of the intraoral mouth opener distributes force evenly, and the facial mask is ergonomically designed, providing human-centered care, protecting teeth, and ensuring therapeutic effectiveness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0018] Figure 2 A bottom view provided for an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure provided in an embodiment of the present invention;

[0020] Figure 4 This is a partial structural diagram of the tapered rod and scissor shaft provided in an embodiment of the present invention;

[0021] Figure 5 This is a partial structural diagram of the adjusting rod and gear provided in an embodiment of the present invention;

[0022] Figure 6 This is a partial structural diagram of the snap ring and the limiting ring provided in an embodiment of the present invention;

[0023] Figure 7 This is a partial structural diagram of the rack and conical rod provided in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a control system provided in an embodiment of the present invention.

[0025] In the picture:

[0026] 1. Fixing hoop; 2. Cover body; 201. Heating element; 202. Electrode plate; 203. Fixing bolt; 3. Connecting frame; 4. External module; 5. Rack; 6. Adjusting rod; 601. Gear; 602. Bolt hole; 7. Tapered rod; 8. Scissor shaft; 801. Shaft; 9. Opening device; 901. Bracket; 10. Power interface; 11. Control module; 12. Snap ring; 13. Limiting ring; 1301. Positioning bolt; 1302. Slot. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] As attached Figure 1 To be continued Figure 8 As shown:

[0029] Example 1: This invention provides an intelligent temporomandibular joint postoperative rehabilitation trainer with heat therapy function, including a fixing hoop 1, a cover 2, and a connecting frame 3; an extraoral module 4 is fixedly connected to the bottom of the connecting frame 3, an adjusting rod 6 is movably installed at the bottom of the extraoral module 4, a gear 601 is fixedly connected to the periphery of the adjusting rod 6, a rack 5 is movably installed inside the extraoral module 4 at both ends of the gear 601, a conical rod 7 is fixedly connected to the top of the rack 5, a shaft 801 is movably installed on the inner side wall of the extraoral module 4, a scissor shaft 8 is movably installed on the side of the two shafts 801 that are close to each other, a bracket 901 is provided at the top of the scissor shaft 8, two brackets 901 are provided, and an opening device 9 is fixedly connected to the top of each of the two brackets 901; the cover 2 is fixedly connected to both sides of the bottom of the fixing hoop 1, a heating plate 201 is provided on the inner side of the cover 2, and an electrode plate 202 is provided on the inner side of the heating plate 201.

[0030] When using this rehabilitation training device, the patient first puts the fixation band 1 on their head and adjusts it to a comfortable and stable position. By loosening the fixing bolt 203 between the connecting frame 3 and the cover 2, the cover 2 is moved up and down along the length of the connecting frame 3 so that the two covers 2 are precisely aligned with the temporomandibular joint areas on both sides. Then, the fixing bolt 203 is tightened to complete the positioning of the cover 2. After connecting to the power supply through the power interface 10, the control module 11 starts and enters the working state. The user can connect the device to a mobile phone and select the heat treatment level and physiotherapy mode according to their own rehabilitation stage and tolerance: the heating pad 201 starts to heat up after receiving the control signal, and the temperature is stabilized in the safe range of 40℃-50℃. The heat is conducted to the skin around the joint, dilating local blood vessels, promoting blood circulation, and relieving postoperative muscle tension and pain. The electrode pad 202 starts simultaneously and outputs a preset frequency of TENS microcurrent. Through transcutaneous electrical nerve stimulation, it acts on the muscles and nerve endings around the joint to further relax spasmodic muscles, reduce pain, create a good physiological foundation for opening training, and avoid training interruption or poor results due to pain.

[0031] When the mouth opening training function is activated, the user rotates the adjusting rod 6 at the bottom of the external module 4. The adjusting rod 6 drives the gear 601 fixed on the outside to rotate synchronously. Since the gear 601 meshes with the racks 5 on both sides inside the external module 4, the rotational motion of the gear 601 is converted into the linear reciprocating motion of the racks 5. When the gear 601 rotates clockwise, the racks 5 on both sides move apart in opposite directions, driving the tapered rod 7 fixed at the top to move synchronously inward toward the scissor shaft 8. Because the tapered rod 7 is located inside the scissor shaft 8, its pushing action will generate a uniform lateral squeezing force on the scissor shaft 8, causing the scissor shaft 8 to rotate symmetrically around the two shafts 801 on both sides, thereby driving the two supports 901 connected at the top to unfold outward, and finally driving the mouth opening device 9 at the top of the support 901 to slowly open, realizing passive stretching training of the temporomandibular joint. During adjustment, users can visually read the opening and closing range of the mouth opener 9 corresponding to the rotation angle of the adjusting rod 6 through the scale dial on the outside of the limiting ring 13, thus precisely controlling the training intensity. After training, rotating the adjusting rod 6 in the opposite direction causes the gear 601 to drive the rack 5 and the conical rod 7 to return to their original position outwards. The scissor shaft 8 rotates in the opposite direction under its own elasticity, and the mouth opener 9 closes naturally. Throughout the training process, hot compresses and electro-pulse physiotherapy work synergistically, gradually restoring joint mobility through controlled mechanical stretching while reducing training discomfort through physical therapy. This forms an integrated rehabilitation model of training and physiotherapy, significantly improving rehabilitation efficiency and patient compliance.

[0032] A smart control system for a temporomandibular joint postoperative rehabilitation training device with heat therapy function:

[0033] The control module 11, as the core of the system, integrates a microprocessor, a signal transceiver unit, a power management unit, a data storage unit, and a Bluetooth communication unit. It can obtain power through the power interface 10 and distribute it to each controlled structure, while realizing the functions of command reception, signal processing, parameter adjustment, and data recording.

[0034] Control method based on structure: The control logic of heating element 201 is as follows: Command reception: The control module 11 receives commands for heating start / stop and intensity adjustment from a mobile app via its own buttons or Bluetooth, supporting three temperature settings: low 40℃, medium 45℃, and high 50℃. Temperature control: The built-in temperature sensor collects the temperature data of heating element 201 in real time and feeds it back to the microprocessor. When the temperature is lower than the set value, the control module 11 outputs a drive signal to increase the heating power; when it is higher than the set value, it reduces the power or stops heating to ensure that the temperature remains stable within the target range. Safety protection: A 60℃ overheat threshold is set. When the temperature exceeds the threshold, the power supply to heating element 201 is immediately cut off and a prompt is triggered, while fault data is recorded.

[0035] Control logic of electrode pad 202: Mode and intensity adjustment: Receives therapy modes, such as TENS microcurrent mode, intensity levels 1-5, and time setting instructions sent by a mobile APP or local buttons. The control module 11 adjusts the output current frequency (1-100Hz) and amplitude (0.1-10mA) according to the instructions. Signal output: Generates a preset waveform microcurrent signal through the signal transceiver unit, amplifies it, and transmits it to electrode pad 202 to achieve transcutaneous nerve electrical stimulation. Real-time monitoring of current stability during operation; if short circuits, open circuits, or other abnormalities occur, the output is immediately stopped and fault information is fed back. Timer function: Supports timer settings of 10-30 minutes; automatically cuts off the power to electrode pad 202 after the set time to avoid over-therapy.

[0036] Auxiliary control logic of the mechanical transmission structure: Data acquisition and feedback: The rotation angle data of the adjusting rod 6 is collected by the angle sensor corresponding to the scale dial of the limit ring 13. The control module 11 converts this data into the opening and closing range of the mouth opener 9 and feeds it back to the mobile APP in real time for display, realizing the visualization of training data. Travel protection: A maximum opening and closing range threshold of the mouth opener 9 is preset. When the adjustment range is detected to reach the threshold, a prompt is given via voice or APP pop-up to avoid overstretching and damaging the joint. At the same time, the maximum opening degree and training time of each training session are recorded and stored in the data storage unit.

[0037] Linked Control Logic: Synchronous Start / Stop: Supports a "training-physiotherapy" linked mode. When the user starts open-mouth training, rotating the adjustment lever 6 triggers the angle sensor signal, and the control module 11 automatically starts the heat therapy and physiotherapy functions, defaulting to the temperature and intensity level matched to the current rehabilitation stage. After training stops, the physiotherapy function is delayed for 5 minutes before shutting off, continuously relieving muscle tension. Personalized Presets: Supports doctors to remotely set the patient's rehabilitation plan via the APP, including heat therapy temperature, physiotherapy intensity, upper limit of open-mouth range, and training duration. The control module 11 receives and stores the settings as a dedicated mode, which the user can directly call up, ensuring standardized training.

[0038] In one embodiment of the present invention, a scale dial is provided on the outer side of the limiting ring 13.

[0039] A scale dial is set on the outer side of the limiting ring 13 to achieve visual and precise adjustment of the opening angle of the mouth opener 9. The scale dial is marked with a scale value corresponding to the rotation angle of the adjusting rod 6, and this scale value can be converted into the opening amplitude of the mouth opener 9 through the transmission relationship.

[0040] In one embodiment of the present invention, the tapered rod 7 is located inside the scissor shaft 8, and the gear 601 meshes with the rack 5.

[0041] When the adjusting rod 6 is rotated, it drives the gear 601 fixed on the outside to rotate synchronously. Since the gear 601 meshes with the rack 5, the rotation of the gear 601 is converted into the linear movement of the rack 5 inside the external module 4. When the gear 601 rotates clockwise, the racks 5 on both sides move in opposite directions, one side outward and the other side inward; when it rotates counterclockwise, they move in the opposite direction. The conical rod 7 fixed at the top of the rack 5 moves synchronously with the rack 5. Since the conical rod 7 is located inside the scissor shaft 8, the linear movement of the conical rod 7 will exert a squeezing or supporting force on the scissor shaft 8: when the conical rod 7 moves inward to the scissor shaft 8, it squeezes the scissor shaft 8 to rotate around the shaft 801, causing the two supports 901 to drive the opening device 9 to open; when the conical rod 7 moves outward, the scissor shaft 8 rotates in the opposite direction under its own elasticity or external restoring force, and the opening device 9 closes. Through the meshing transmission of gear 601 and rack 5, and the action of conical rod 7 on scissor shaft 8, the opening and closing range of mouth opener 9 can be precisely and controllably adjusted, providing a suitable range of motion for postoperative rehabilitation training of temporomandibular joint.

[0042] In one embodiment of the present invention, the connecting frame 3 penetrates the cover 2, and a fixing bolt 203 is movably installed between the cover 2 and the connecting frame 3.

[0043] The inner side of the cover 2 is equipped with a heating pad 201 and an electrode pad 202, which need to be precisely fitted to the patient's temporomandibular joint area to achieve the effect of heat therapy. Since different patients have different head sizes and temporomandibular joint positions, the fixing bolt 203 can be loosened, and the cover 2 can be moved up and down along the length of the connecting frame 3 to adjust its height, aligning the heating pad 201 and electrode pad 202 with the patient's joint area. Once the cover 2 is in the appropriate position, the fixing bolt 203 is tightened. The fixing bolt 203 presses against the connecting frame 3, using friction to fix the cover 2 and the connecting frame 3 relatively, ensuring that the cover 2 will not shift during heat therapy and guaranteeing the stability and targeted nature of the therapy effect.

[0044] In one embodiment of the present invention, a control module 11 is provided at the bottom of the external module 4, and a power interface 10 is provided at the bottom of the external module 4 on one side of the control module 11.

[0045] A control module 11 is installed at the bottom of the external oral module 4. A power interface 10 is installed at the bottom of the external oral module 4 on one side of the control module 11, providing control and power supply support for the intelligent operation of the device. The power interface 10 can be connected to an external power source to supply power to electrical components such as the control module 11, heating element 201, and electrode pads 202, ensuring the normal operation of the device. The control module 11 can preset or receive parameters input by the user, and control the heating power of the heating element 201 and the working status of the electrode pads 202 according to the parameters. At the same time, the control module 11 can monitor parameters such as the temperature of the heating element 201 and the working current of the electrode pads 202 in real time. If the temperature is too high or the current is abnormal, it can automatically cut off the power supply to the corresponding components to ensure patient safety.

[0046] Working principle: After the power interface 10 is connected to the power source, the control module 11 inside the extraoral module 4 is activated, sending a working signal to the heating pad 201 and electrode pad 202 inside the cover 2. After receiving the signal, the heating pad 201 generates heat, which acts on the skin around the temporomandibular joint through heat conduction, maintaining a stable temperature of 40℃-50℃; the electrode pad 202 simultaneously outputs a microcurrent in TENS mode, which is conducted through the skin to the muscles and nerve endings around the joint, realizing the coordinated operation of heat application and electro-pulse physiotherapy, providing physiological preparation for opening training. The rotating adjustment rod 6 drives the gear 601 fixed on its periphery to rotate. The gear 601 meshes with the rack 5 inside the extraoral module 4, converting the rotational motion into the linear movement of the rack 5. The rack 5 drives the tapered rod 7 fixed at the top to move inward toward the scissor shaft 8. The tapered rod 7 exerts a lateral squeezing force on the scissor shaft 8, causing the scissor shaft 8 to rotate around the shaft 801 on the inner side wall of the outer module 4. This, in turn, drives the bracket 901 at the top of the scissor shaft 8 to open synchronously with the mouth opener 9, completing the passive mouth opening training. When the adjusting rod 6 is rotated in the opposite direction, the gear 601 drives the rack 5 and the tapered rod 7 to reset, the scissor shaft 8 rotates in the opposite direction, and the mouth opener 9 closes naturally. The entire process achieves controllable adjustment of the mouth opening amplitude through the precise transmission of the gear 601 and the rack 5.

[0047] Example 2: This example is basically the same as the previous example, except that a snap ring 12 is fixedly connected to the bottom of the external module 4, and a limit ring 13 is movably installed on the periphery of the snap ring 12.

[0048] A locking ring 12 is fixedly connected to the bottom of the external module 4, and a limiting ring 13 is movably installed around the locking ring 12, forming an auxiliary limiting structure for the adjusting rod 6. When the user adjusts the opening degree of the mouth opener 9 through the adjusting rod 6, the limiting ring 13 can rotate around the locking ring 12. Its core function is to provide initial constraint on the rotation angle of the adjusting rod 6. The movable cooperation between the locking ring 12 and the limiting ring 13 does not affect the basic function of the adjusting rod 6 driving the gear 601 to rotate, and the position of the limiting ring 13 limits the adjustment rod 6 to prevent excessive rotation and damage to transmission components such as the rack 5, the conical rod 7, and the scissor shaft 8. At the same time, it provides structural support for the subsequent precise positioning of the adjusting rod 6. Due to the one-way interlocking structure of the locking ring 12 and the limiting ring 13, the operator can rotate the mouth opener 9 in one direction to adjust its opening degree, so that the mouth opener 9 will not spring back in the opposite direction.

[0049] In one embodiment of the present invention, the adjusting rod 6 is provided with a bolt hole 602 inside, and a positioning bolt 1301 is movably installed at one end of the limiting ring 13, and the positioning bolt 1301 is threadedly connected to the bolt hole 602.

[0050] When it is necessary to reset the mouth opener 9, the staff can unscrew the positioning bolt 1301, pull down the limiting ring 13 to separate it from the buckle ring 12, and then the buckle ring 12 can rotate normally to reset the mouth opener 9.

[0051] In one embodiment of the present invention, the limiting ring 13 is provided with a slot 1302 inside, and the buckle ring 12 is fitted into the slot 1302.

[0052] The buckle ring 12 is embedded in the slot 1302 of the limiting ring 13. The shape of the slot 1302 is adapted to the shape of the buckle ring 12. Due to the unidirectional bending and fitting, the adjusting rod 6 can be rotated in one direction.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function, characterized in that: It includes a fixing hoop (1), a cover (2), and a connecting frame (3); The bottom of the connecting frame (3) is fixedly connected to an external module (4). An adjusting rod (6) is movably installed at the bottom of the external module (4). A gear (601) is fixedly connected to the periphery of the adjusting rod (6). A rack (5) is movably installed inside the external module (4) at both ends of the gear (601). A tapered rod (7) is fixedly connected to the top of the rack (5). A shaft (801) is movably installed on the inner side wall of the external module (4). A scissor shaft (8) is movably installed on the side of the two shafts (801) that are close to each other. A bracket (901) is provided on the top of the scissor shaft (8). There are two brackets (901). An opening device (9) is fixedly connected to the top of each of the two brackets (901). The bottom sides of the fixing hoop (1) are fixedly connected to the cover (2), the inner side of the cover (2) is provided with a heating element (201), and the inner side of the heating element (201) is provided with an electrode (202).

2. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 1, characterized in that: The bottom of the external module (4) is fixedly connected to a buckle ring (12), and a limit ring (13) is movably installed on the periphery of the buckle ring (12).

3. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 2, characterized in that: The adjusting rod (6) has a bolt hole (602) inside, and a positioning bolt (1301) is movably installed at one end of the limiting ring (13), and the positioning bolt (1301) is threadedly connected to the bolt hole (602).

4. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 2, characterized in that: The limiting ring (13) has a slot (1302) inside, and the buckle ring (12) fits into the slot (1302).

5. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 2, characterized in that: The outer side of the limiting ring (13) is provided with a scale plate.

6. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 1, characterized in that: The tapered rod (7) is located inside the scissor shaft (8), and the gear (601) meshes with the rack (5).

7. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 1, characterized in that: The connecting frame (3) passes through the cover (2), and a fixing bolt (203) is movably installed between the cover (2) and the connecting frame (3).

8. The intelligent temporomandibular joint postoperative rehabilitation training device with heat therapy function according to claim 1, characterized in that: The bottom of the external module (4) is provided with a control module (11), and a power interface (10) is provided at the bottom of the external module (4) on one side of the control module (11).

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