Mandibular movement rehabilitation apparatus

Abstract

The application discloses a mandibular movement rehabilitation instrument, which comprises a shell, a maxillary pad fixed to the shell, and a mandibular pad matched with the maxillary pad, characterized in that a screw rod, a power assembly for driving the screw rod to rotate, and a movement assembly in transmission with the screw rod are arranged in the shell, the mandibular pad is fixedly connected with the movement assembly, so that the movement assembly can drive the mandibular pad to move towards and away from the maxillary pad, and the shell is provided with an avoiding channel for avoiding the moving path of the mandibular pad. The mandibular movement rehabilitation instrument can automatically open and close the maxillary pad and the mandibular pad, so that the opening rehabilitation process of the patient is more labor-saving, and the rehabilitation effect is good.

Description

Technical Field

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

[0002] The mandibular movement rehabilitation device, also known as an opening trainer, can provide opening rehabilitation training for patients with speech disorders. Its basic principle is to put the maxillary and mandibular pads together into the patient's mouth, and use the force formed by the separation of the maxillary and mandibular pads to help the patient's maxilla and mandible open.

[0003] Most existing mouth opening trainers are manual tools, while oral rehabilitation training often requires repeated opening and closing movements. Therefore, existing manual mouth opening trainers are inconvenient to use. Furthermore, the force applied manually is inconsistent, and for oral rehabilitation training, maintaining a consistent force during each mouth opening exercise or gradually changing it according to the rehabilitation plan is a crucial factor affecting rehabilitation outcomes. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art: to provide a mandibular movement rehabilitation device that enables the maxillary and mandibular pads to open and close automatically, thereby making the opening rehabilitation process for patients more effortless and achieving better rehabilitation results.

[0005] Therefore, one object of the present invention is to provide a mandibular movement rehabilitation device, which includes a housing, a maxillary pad fixed to the housing, and a mandibular pad that matches the maxillary pad. The device is characterized in that: the housing is provided with a screw, a power component for driving the screw to rotate, and a motion component that is connected to the screw via a lead screw transmission; the mandibular pad is fixedly connected to the motion component so that the motion component can drive the mandibular pad to move towards or away from the maxillary pad; and the housing has a clearance channel for avoiding the movement path of the mandibular pad.

[0006] According to one example of the present invention, the motion component includes a carrier and a lead screw and nut disposed on the carrier, the lead screw being kinetically connected to the lead screw and nut, and the chin pad being fixedly connected to the carrier.

[0007] According to one embodiment of the present invention, the housing has an arc-shaped guide groove extending in a vertical direction, the upper jaw pad is located at the position corresponding to the upper end of the arc-shaped guide groove, and the carrier is slidably engaged with the arc-shaped guide groove; the two sides of the lead screw nut are respectively pivotally connected to the carrier via convex shafts; the power assembly includes a carrier plate and a motor disposed on the carrier plate, the carrier plate is hinged to the housing, and the output shaft of the motor is drivenly connected to the lower end of the lead screw.

[0008] According to one example of the invention, the carrier is provided with an emergency switch and a movable member for driving the cam shaft to move axially. The emergency switch is configured to allow contact from outside the housing, and the movable member responds to the opening and closing action of the emergency switch to pivotally connect or disengage the cam shaft from the lead screw nut.

[0009] According to an example of the present invention, the emergency switch includes a handle, a connecting section, and an active ring fitted around a cam shaft. A portion of the handle is exposed outside the housing and is fixedly connected to the active ring via the connecting section. The active ring has a plurality of first toothed guide surfaces evenly arranged circumferentially on the side facing away from the carrier. The movable member is located on the side of the active ring facing away from the carrier and has a second toothed guide surface that matches the first toothed guide surfaces. One end of the cam shaft passes through the active ring and is fixedly connected to the movable member, while the other end is pivotally connected to a lead screw nut via a through hole on the carrier. A preload spring is provided on the side of the movable member facing away from the active ring. The two ends of the preload spring abut against the movable member and a baffle fixed on the carrier, respectively. The handle drives the active ring to rotate, so that the movable member reciprocates axially.

[0010] According to an example of the present invention, the lead screw nut has a threaded hole that matches the screw. Two parallel lateral end faces are provided on the outer surface of the lead screw nut along the radial direction of the threaded hole. Each of the two lateral end faces has a shaft hole that mates with a corresponding cam. The two shaft holes are coaxially arranged. The carrier has a mounting cavity for accommodating the lead screw nut. The two ends of the mounting cavity have a lower port and an upper port for the screw to pass through. The two lateral end faces of the lead screw nut are respectively fitted with symmetrical inner surfaces within the accommodating cavity. The accommodating cavity is provided with an upper limit stop and a lower limit stop for limiting the travel of the lead screw nut. The upper limit stop is configured to align the shaft hole on the lead screw nut with the through hole on the carrier when the lead screw nut moves upward.

[0011] According to an example of the present invention, the cam shaft has a piston cavity, in which a piston and a piston rod are disposed. One end of the piston rod is fixed to the piston, and the other end extends axially out of the piston cavity and is fixedly connected to a baffle on the carrier. A positioning ring is disposed on the side of the piston away from the lead screw nut, and a guide plug is disposed on the other side. The front end face of the piston facing the guide plug has a plurality of first inclined guide blocks arranged circumferentially. The guide plug has a second inclined guide block that matches the first inclined guide blocks. When the piston moves axially toward the position of the guide plug, the second inclined guide block abuts against the first inclined guide block, so that the piston rotates circumferentially. The positioning ring is circumferentially confined within the piston cavity, and the end face facing the piston has a plurality of deep grooves and shallow grooves formed axially. The deep grooves and shallow grooves are alternately arranged circumferentially. The rear end face of the piston facing the positioning ring has a positioning rod. The positioning rod alternately engages with the deep grooves or shallow grooves during circumferential rotation, so that the cam shaft extends out of the through hole and inserts into the shaft hole of the lead screw nut or retracts into the through hole.

[0012] According to one example of the present invention, the carrier is provided with a plurality of pulleys that roll in cooperation with the inner wall of the arc-shaped guide groove.

[0013] According to one example of the present invention, the housing is provided with an upper connecting plate and a lower connecting plate, the mandibular pad is fixedly connected to the carrier through the lower connecting plate, the maxillary pad is fixedly connected to one end of the upper connecting plate, and the upper connecting plate is connected to the housing through a buffer member.

[0014] According to one embodiment of the present invention, the housing is provided with an MCU, a power supply, a Bluetooth module and several sensors. The power component, power supply, Bluetooth module and each sensor are electrically connected to the MCU. The sensors include a speed sensor for collecting the speed of the moving component, a displacement sensor for detecting the position of the moving component and a pressure sensor for the load force on the chin pad. The MCU can transmit the data collected by each sensor to an associated mobile terminal via the Bluetooth module.

[0015] The above technical solution has the following advantages or beneficial effects: First, the power component can drive the motion component to rise and fall through the screw, thereby causing the mandibular pad installed on the motion component to move closer to or further away from the fixed-position maxillary pad. Thus, during the patient's mouth opening rehabilitation training, it can automatically apply force to force the patient's maxilla and mandible to open, avoiding the laborious problem caused by manual force application. Second, the mandibular pad can move along an arc, so that the movement path of the mandibular pad matches the movement of the human mandible, avoiding the damage caused by relative sliding when the mandibular pad and the human mandible are in contact. Finally, through the design of the emergency switch, the patient can manually release the force of the mandibular pad on the patient's mandible.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the mandibular movement rehabilitation device of the present invention.

[0018] Figure 2 This is a front view of the mandibular movement rehabilitation device of the present invention.

[0019] Figure 3 for Figure 2 A cross-sectional view along the "AA" direction.

[0020] Figure 4 yes Figure 1 Exploded view of the mandibular movement rehabilitation device.

[0021] Figure 5 This is an axonometric view of the motion component in the right front direction of the present invention.

[0022] Figure 6 This is an axonometric view of the motion component in the right rear direction of the present invention.

[0023] Figure 7 This is a side view of the motion component in this invention.

[0024] Figure 8 for Figure 7 A cross-sectional view along the "BB" direction.

[0025] Figure 9 for Figure 8 A magnified view of a portion of the "C" region.

[0026] Figure 10 yes Figure 9 A three-dimensional schematic diagram of the mid-section view.

[0027] Figure 11 for Figure 10 A magnified view of a portion of the "D" region.

[0028] Figure 12 for Figure 6 An exploded view of the moving components.

[0029] Figure 13 This is an assembly diagram of the moving parts, cam shaft, and emergency switch in the motion assembly.

[0030] Figure 14 It is an isometric view of the moving parts and the cam shaft in the motion assembly, which are integrated into one structure.

[0031] Figure 15 This is an isometric view of the guide plug in the motion assembly.

[0032] Figure 16 This is an isometric view of the positioning ring in the motion assembly.

[0033] Figure 17 This is an axonometric view of the piston and piston rod, which are integrated into a single moving assembly.

[0034] in,

[0035] 100. Shell; 101. Left half shell; 102. Right half shell; 103. Clearance passage; 104. Arc-shaped guide groove;

[0036] 200. Maxillary pad; 300. Mandibular pad;

[0037] 400. Screw;

[0038] 500. Power assembly; 501. Carrier plate; 502. Motor; 503. Coupling;

[0039] 600. Motion Component; 1. Carrier; 1.1. Through Hole; 1.2. Mounting Cavity; 1.3. Lower Port; 1.4. Upper Port; 2. Lead Screw Nut; 2.1. Threaded Hole; 2.2. Lateral End Face; 2.3. Shaft Hole; 3. Protruding Shaft; 3.1. Piston Chamber; 4. Moving Part; 5. Handle; 6. Connecting Section; 7. Driving Ring; 8. First Toothed Guide Surface; 9. Second Toothed Guide Surface; 10. Preload Spring; 11. Baffle; 12. Upper Limiting Component; 13. Lower Limiting Component; 14. Piston; 15. Piston Rod; 16. Positioning Ring; 16.1. Deep Groove; 16.2. Shallow Groove; 17. Guide Plug; 18. First Inclined Guide Block; 19. Second Inclined Guide Block; 20. Positioning Rod; 21. Pulley; 23. Upper Connecting Plate; 24. Lower Connecting Plate;

[0040] 700, Power supply. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] The present invention is used to train patients with oral diseases in muscle control and nerve recovery, which can accelerate the speed of muscle production and nerve recovery, thereby enabling patients to quickly regain their motor abilities.

[0043] The mandibular movement rehabilitation device according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] Example 1

[0045] This invention provides a mandibular movement rehabilitation device, as shown in the figure. It includes a housing 100, a maxillary pad 200 fixed to the housing 100, and a mandibular pad 300 matching the maxillary pad 200. The housing 100 is provided with a driving mechanism for moving the mandibular pad 300, thereby allowing the mandibular pad 300 to move towards the maxillary pad 200 to close together or away from the maxillary pad 200. When the mandibular pad 300 and the maxillary pad 200 are close together, the patient bites down on both. The movement of the mandibular pad 300 away from the maxillary pad 200 provides rehabilitation assistance for opening the patient's mouth. The driving mechanism includes components disposed on the housing 100... The housing 100 includes a screw 400, a power component 500 for driving the screw 400 to rotate, and a motion component 600 that is connected to the screw 400 via a lead screw transmission. The mandibular pad 300 is fixedly connected to the motion component 600. The power component 500 drives the motion component 600 through the screw 400, thereby causing the motion component 600 to move the mandibular pad 300 towards or away from the maxillary pad 200. The housing 100 has a clearance channel 103 for avoiding the movement path of the mandibular pad 300. One end of the mandibular pad 300 passes through the clearance channel 103 and is connected to the motion component inside the housing 100. The portion of the mandibular pad 300 exposed outside the housing 100 can be taken into the patient's mouth.

[0046] The aforementioned maxillary pad 200 can be fixed to the outer wall of the housing 100, or it can be fixed to the inner wall of the housing through the clearance channel 103.

[0047] Preferably, such as Figure 4 As shown, the housing 100 includes a left half-shell 101 and a right half-shell 102, which are detachably connected.

[0048] Example 2

[0049] Based on the above embodiment 1, the motion component 600 specifically includes a carrier 1 and a lead screw nut 2 disposed on the carrier 1. The screw 400 is connected to the lead screw nut 2 in a transmission connection. This transmission connection means that the screw 400 and the lead screw nut 2 form a lead screw transmission that can convert the rotation of the screw 400 into the movement of the lead screw nut 2, also known as a screw transmission. The chin pad 300 is fixedly connected to the carrier 1. Thus, the power component 500 drives the screw 400 to rotate, and the forward and reverse rotation of the screw 400 realizes the reciprocating movement of the lead screw nut 2 and the carrier 1, ultimately driving the chin pad 300 fixed on the carrier 1 to reciprocate.

[0050] Example 3

[0051] Based on the preferred embodiment of the above, such as Figure 2 and Figure 3 As shown, the mandibular pad 300 is located below the maxillary pad 200. The motion component 600 drives the mandibular pad 300 to move vertically upward to be parallel to the maxillary pad 200 or downward to move away from the maxillary pad 200.

[0052] In order to make the movement of the carrier 1 more stable during the vertical movement of the motion component 600 within the housing 100, a guide groove extending in the vertical direction is provided inside the housing 100. The carrier 1 slides within the guide groove, thereby making the movement of the carrier 1 more stable under the guidance of the guide groove.

[0053] Furthermore, since the movement of the human jaw is a swinging motion with a certain arc in the vertical direction, if the jaw pad 300 in the above embodiment only performs as described above... Figure 2 and Figure 3 The vertical movement shown indicates that the mandibular pad 300 will slide against the patient's mandible, causing discomfort or damage to the patient's gums. Therefore, in order to better conform to the opening and closing movements of the mandible in the patient's mouth, a preferred example in this embodiment is to adjust the movement path of the mandibular pad 300 to an arc-shaped movement path along the vertical direction. Specifically, the housing 100 has an arc-shaped guide groove 104 extending vertically and curved into an arc. The maxillary pad 200 is located at the upper end of the arc-shaped guide groove 104. The carrier 1 slides with the arc-shaped guide groove 104, thereby causing the mandibular pad 300 to move in an arc-shaped path as the carrier 1 moves it vertically. Preferably, in this embodiment, the arc angle of the arc-shaped guide groove 104 can be a variety of sizes calculated based on the oral cavity dimensions of different patients. The size data of the arc-shaped guide groove can be easily obtained by engineers in the art through simple calculations.

[0054] Based on the requirement for the carrier 1 to perform arc-shaped motion in this embodiment, the two sides of the lead screw nut 2 are pivotally connected to the carrier 1 via convex shafts 3. The power assembly 500 includes a carrier plate 501 and a motor 502 disposed on the carrier plate 501. The carrier plate 501 is hinged to the housing 100. The output shaft of the motor 502 is drivenly connected to the lower end of the screw 400. The convex shaft 3 enables the lead screw nut 2 to be pivotally connected to the carrier 1. At the same time, the carrier plate 501 with the motor 502 is also pivotally connected to the housing 100. Thus, the lead screw nut 2 and the screw 400 can maintain a transmission connection during the arc-shaped motion of the carrier 1.

[0055] Preferably, the output shaft of the motor 502 is connected to the lower end of the screw 400 via a coupling 503.

[0056] Example 4

[0057] Since the movement of the mandibular pad 300 in this embodiment is electrically driven, there is a certain lag in the switching of the motor's forward and reverse rotation. When the maxillary pad 200 and mandibular pad 300 push the maxilla and mandible in the patient's mouth to the patient's maximum tolerable position, the patient should be provided with an emergency method other than reversing the motor to reset the mandibular pad 300. This is to promptly relieve the force exerted by the mandibular pad 300 on the patient's mandible. In addition, it also avoids the situation where the motor cannot reverse due to motor failure. Therefore, the improvement in this embodiment is that the carrier 1 is equipped with an emergency switch and a mechanism for driving... The movable part 4 of the convex shaft 3 moves axially. The emergency switch is configured to allow the patient to touch the emergency switch from outside the housing 100. The patient's opening and closing action of the emergency switch causes the movable part 4 to drive the convex shaft 3 to move axially, thereby causing the lead screw nut 2 to disengage from the carrier 1. At this time, the carrier 1 is freed from the constraint of the lead screw nut 2 and can move freely along the arc-shaped guide groove 104, thereby realizing the rapid release of the force exerted by the mandibular pad 300 on the patient's mandible. That is, the movable part 4 responds to the opening and closing action of the emergency switch to pivotally connect or disengage the convex shaft 3 from the lead screw nut 2.

[0058] Based on the preferred embodiment described above, the emergency switch includes a handle 5, a connecting section 6, and an active ring 7 fitted around the convex shaft 3. Since the lead screw nut has convex shafts 3 on both sides, there should be two active rings 7. The handle 5, connecting section 6, and active ring 7 are an integral structure. Part of the handle 5 is exposed outside the housing 100 and is fixedly connected to the two active rings 7 respectively through their connecting sections 6. The active ring 7 has a plurality of first toothed guide surfaces 8 evenly arranged circumferentially on the side facing away from the carrier 1. The movable part 4 is located on the side of the active ring 7 facing away from the carrier 1 and has a second toothed guide surface 9 that matches the first toothed guide surface 8. One end of the convex shaft 3 passes through the active ring 7 and is fixed to the movable part 4. One end is fixedly connected to the other end, and the other end is pivotally connected to the lead screw nut 2 through the through hole 1.1 on the carrier 1. The movable part 4 is provided with a preload spring 10 on the side away from the driving ring 7. The preload spring 10 pushes the movable part 4 toward the driving ring 7 so that the first toothed guide surface 8 and the second toothed guide surface 9 are in contact. Specifically, the carrier 1 is provided with a detachable baffle 11. The two ends of the preload spring 10 abut against the movable part 4 and the baffle 11 respectively. The handle 5 drives the driving ring 7 to rotate. Under the interaction of the first toothed guide surface 8 and the second toothed guide surface 9 that are in contact with each other, the circumferential movement of the driving ring 7 is converted into the axial movement of the movable part 4. That is, as the driving ring 7 moves circumferentially, the movable part 4 moves back and forth along the axial direction. The axial reciprocating movement of the movable part 4 causes the cam shaft 3, which is fixedly connected to the movable part 4, to reciprocate synchronously. Thus, when the cam shaft 3 moves toward the position of the lead screw nut 2, the front end of the cam shaft 3 is inserted into the corresponding shaft hole 2.3 on the lead screw nut 2. Conversely, when the cam shaft 3 moves away from the position of the lead screw nut 2, the front end of the cam shaft 3 is dislodged from the lead screw nut 2, thereby enabling the lead screw nut 2 to move relative to the carrier 1.

[0059] like Figure 3 As shown, a return spring is provided between the handle 5 and the carrier 1, with both ends of the return spring connected to the handle 5 and the carrier 1 respectively. The return spring drives the handle 5 to the initial position, and when the handle 5 is in the initial position, the convex shaft 3 is inserted into the shaft hole 2.3 of the lead screw nut 2.

[0060] Example 5

[0061] Based on the preferred embodiment of the above-described embodiment four: the lead screw nut 2 has a threaded hole 2.1 that matches the screw 400. Two parallel lateral end faces 2.2 are provided on the outer surface of the lead screw nut 2 along the radial direction of the threaded hole 2.1. Each of the two lateral end faces 2.2 has a shaft hole 2.3 that mates with the corresponding convex shaft 3. The axes of the two shaft holes 2.3 are collinear, i.e., the two shaft holes 2.3 are coaxial. The carrier 1 has a mounting cavity 1.2 for accommodating the lead screw nut 2. The two ends of the mounting cavity 1.2 are respectively provided with a lower port 1.3 and an upper port 1.4 through which the screw 400 passes. The two lateral end faces 2.2 of the lead screw nut 2 are respectively fitted to the symmetrical inner surfaces within the accommodating cavity. The accommodating cavity is provided with an upper limit stop 12 and a lower limit stop 13 for limiting the travel of the lead screw nut 2. The upper limit stop 12 is configured to align the shaft hole 2.3 on the lead screw nut 2 with the through hole 1.1 on the carrier 1 when the lead screw nut 2 moves upward. Figure 3 As shown, the upper limit member 12 is a guide slope formed by the inner tangent of the inner sidewall of the receiving cavity. Under the guiding action of the guide slope, the lead screw nut 2 can move to align with the through hole 1.1 on the carrier 1 during the upward movement relative to the carrier 1.

[0062] Preferably, the lower limiting member 13 is detachably connected to the carrier 1.

[0063] Example 6

[0064] Based on the preferred embodiment of the above, the convex shaft 3 has a piston cavity 3.1, and a piston 14 and a piston rod 15 are provided in the piston cavity 3.1. One end of the piston rod 15 is fixed to the piston 14, and the other end passes through the piston cavity 3.1 and the movable part 4 along the axial direction and is connected to the carrier 1. Preferably, the other end of the piston rod 15 is fixedly connected to the baffle 11 on the carrier 1. A positioning ring 16 is provided in the piston cavity 3.1 on the side of the piston 14 away from the lead screw nut 2, and a guide plug 17 is provided on the other side.

[0065] The positioning ring 16 is circumferentially confined within the piston cavity 3.1. Preferably, the positioning ring 16 is fixedly connected to the piston cavity 3.1. The end face of the positioning ring 16 facing the piston 14 has multiple deep grooves 16.1 and shallow grooves 16.2 formed axially. The deep grooves 16.1 and shallow grooves 16.2 are alternately arranged circumferentially. The rear end face of the piston 14 facing the positioning ring 16 has a positioning rod 20. During circumferential rotation, the positioning rod 20 alternately engages with the deep grooves 16.1 or the shallow grooves 16.2, so that the convex shaft 3 extends axially out of the through hole 1.1 and is inserted into the shaft hole 2.3 of the lead screw nut 2 or retracts into the through hole 1.1. A guide surface is provided between any deep groove 16.1 and the adjacent shallow groove 16.2. All guide surfaces are inclined clockwise or counterclockwise along the circumference of the positioning rod 20.

[0066] The piston 14 has a plurality of first inclined guide blocks 18 arranged circumferentially on its front end face facing the guide plug 17. The guide plug 17 is provided with second inclined guide blocks 19 that match the first inclined guide blocks 18. When the piston 14 moves axially toward the position of the guide plug 17 and the positioning rod 20 on the piston 14 corresponds axially to the deep groove 16.1 or the shallow groove 16.2, the second inclined guide block 19 abuts against the first inclined guide block 18. The second inclined guide block 19 forms a component force that drives the piston 14 to rotate circumferentially through its interaction with the first inclined guide block 18. Under the action of this component force, the piston 14 rotates circumferentially.

[0067] Example 7

[0068] In a preferred embodiment of the above-described embodiment, the carrier 1 is provided with a plurality of pulleys 21 that roll in cooperation with the inner wall of the arc-shaped guide groove 104. Specifically, each corner of the carrier 1 is provided with a pulley 21 that rotates around its own axis, and each pulley 21 rolls in cooperation with the arc-shaped guide groove 104. The arrangement of the pulleys 21 makes the movement of the carrier 1 within the arc-shaped guide groove 104 more stable.

[0069] Example 8

[0070] Both the maxillary pad 200 and the mandibular pad 300 are exposed outside the housing 100. The housing 100 is provided with an upper connecting plate 23 and a lower connecting plate 24. The mandibular pad 300 is fixedly connected to the carrier 1 through the lower connecting plate 24. The maxillary pad 200 is fixedly connected to one end of the upper connecting plate 23, and the upper connecting plate 23 is connected to the housing 100 through a buffer (not shown in the figure).

[0071] It should be understood that the maxillary pad 200 and the housing 100 can be fixedly connected directly between the maxillary pad 200 and the housing 100 or fixedly connected to each other through the upper connecting plate 23. Alternatively, the upper connecting plate 23 can be connected to the housing 100 through a buffer member with a certain buffering capacity.

[0072] The aforementioned buffer reduces the impact force between the mandibular pad 300 and the maxillary pad 200 during their closing and collision. Preferably, the buffer can be a buffer spring or elastic rubber.

[0073] Example 9

[0074] For rehabilitation treatment of patients with open bite, due to individual differences among patients, the rehabilitation training plan should be formulated by the doctor according to the differences of each patient. The improvement in this embodiment is that: the housing 100 is equipped with an MCU, a power supply 700, a Bluetooth module, and several sensors; the power assembly 500, the power supply 700, the Bluetooth module, and each sensor are electrically connected to the MCU.

[0075] The sensors include a speed sensor for acquiring the speed of the motion component 600, a displacement sensor for detecting the position of the motion component 600, and a pressure sensor for the load force on the chin pad 300.

[0076] The MCU can transmit the data collected by each sensor to the associated mobile terminal via Bluetooth module.

[0077] The mobile terminal displays data acquired from the MCU, allowing the attending physician to intuitively monitor the patient's rehabilitation training progress and adjust the training plan accordingly. Simultaneously, the electrical connection between the MCU and the power component 500 enables the MCU to control the start / stop and output power of the power component 500, thereby controlling the movement of the motion component 600. Specifically, the physician can wirelessly transmit training plans for different patients to the patient's mobile terminal, which then inputs the plans into the MCU. The MCU controls the movement speed of the motion component 600 and the pressure applied to the patient's jaw by the chin pad 300 based on the parameters in the acquired training plan and real-time data collected by various sensors.

[0078] The MCU mentioned above refers to a microcontroller unit or microcontroller chip.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0080] For those skilled in the art, various changes and modifications will undoubtedly be apparent after reading the above description. Therefore, the appended claims should be construed as covering all changes and modifications that encompass the true intent and scope of the invention. Any and all equivalent scope and content within the scope of the claims should be considered to remain within the intent and scope of the invention.

Claims

1. A mandibular movement rehabilitation device, comprising a housing, a maxillary pad fixed to the housing, and a mandibular pad matching the maxillary pad, characterized in that: The housing contains a screw, a power component for driving the screw to rotate, and a motion component that drives the screw via a lead screw. The mandibular pad is fixedly connected to the motion component so that the motion component can drive the mandibular pad and the maxillary pad to move towards each other or away from each other. The housing has a clearance channel for avoiding the movement path of the mandibular pad. The motion component includes a carrier and a lead screw and nut disposed on the carrier. The lead screw and the lead screw and nut are connected in a driving connection. The chin pad is fixedly connected to the carrier. The housing has an arc-shaped guide groove extending vertically, the maxillary pad is located at the position corresponding to the upper end of the arc-shaped guide groove, and the carrier slides in conjunction with the arc-shaped guide groove. The two sides of the lead screw nut are respectively connected to the carrier pivot via convex shafts; The power assembly includes a carrier plate and a motor mounted on the carrier plate. The carrier plate is hinged to the housing, and the output shaft of the motor is connected to the lower end of the screw. The carrier is equipped with an emergency switch and a movable component for driving the cam shaft to move axially. The emergency switch is configured to allow contact from outside the housing. The movable component responds to the opening and closing action of the emergency switch to pivotally connect the cam shaft with or disengage it from the lead screw nut. The emergency switch includes a handle, a connecting section, and an active ring fitted around a cam shaft. Part of the handle protrudes outside the housing and is fixedly connected to the active ring via the connecting section. The active ring has several first toothed guide surfaces evenly arranged circumferentially on the side facing away from the carrier. The movable part is located on the side of the active ring facing away from the carrier and has a second toothed guide surface that matches the first toothed guide surfaces. One end of the cam shaft passes through the active ring and is fixedly connected to the movable part, while the other end is pivotally connected to a lead screw nut through a through hole on the carrier. A preload spring is provided on the side of the movable part facing away from the active ring. The two ends of the preload spring abut against the movable part and a baffle fixed on the carrier, respectively. The handle drives the active ring to rotate, so that the movable part reciprocates axially.

2. The mandibular movement rehabilitation device according to claim 1, characterized in that: The lead screw nut has a threaded hole that matches the screw. On the outer side of the lead screw nut, there are two parallel lateral end faces along the radial direction of the threaded hole. Each of the two lateral end faces has a shaft hole that mates with the corresponding cam. The two shaft holes are coaxially arranged. The carrier has a mounting cavity for accommodating the lead screw nut. The two ends of the mounting cavity have a lower port and an upper port for the screw to pass through. The two lateral end faces of the lead screw nut are respectively attached to the symmetrical inner surfaces of the accommodating cavity. The accommodating cavity is provided with an upper limit stop and a lower limit stop for limiting the travel of the lead screw nut. The upper limit stop is configured to align the shaft hole on the lead screw nut with the through hole on the carrier when the lead screw nut moves upward.

3. The mandibular movement rehabilitation device according to claim 2, characterized in that: The convex shaft has a piston chamber, and a piston and a piston rod are provided in the piston chamber. One end of the piston rod is fixed to the piston, and the other end passes through the piston chamber axially and is fixedly connected to the baffle on the carrier. A positioning ring is provided in the piston chamber on the side of the piston away from the lead screw nut, and a guide plug is provided on the other side. The piston has a plurality of first inclined guide blocks arranged circumferentially on its front end face facing the guide plug. The guide plug is provided with a second inclined guide block that matches the first inclined guide blocks. When the piston moves axially toward the position of the guide plug, the second inclined guide block abuts against the first inclined guide block, so that the piston rotates circumferentially. The positioning ring is circumferentially confined within the piston cavity, and has multiple deep and shallow grooves formed axially on its end face facing the piston. The deep and shallow grooves are alternately arranged circumferentially. The piston has a positioning rod on its rear end face facing the positioning ring. During circumferential rotation, the positioning rod alternately engages with the deep or shallow grooves, so that the convex shaft extends axially out of the through hole and is inserted into the shaft hole of the lead screw nut or retracts into the through hole.

4. The mandibular movement rehabilitation device according to any one of claims 1-3, characterized in that: The carrier is provided with several pulleys that roll in cooperation with the inner wall of the arc-shaped guide groove.

5. The mandibular movement rehabilitation device according to claim 1, characterized in that: The housing contains an upper connecting plate and a lower connecting plate. The mandibular pad is fixedly connected to the carrier through the lower connecting plate. The maxillary pad is fixedly connected to one end of the upper connecting plate. The upper connecting plate is connected to the housing through a buffer.

6. The mandibular movement rehabilitation device according to claim 1, characterized in that: The housing contains an MCU, a power supply, a Bluetooth module, and several sensors. The power component, power supply, Bluetooth module, and each sensor are electrically connected to the MCU. The sensors include a velocity sensor for acquiring the speed of the moving component, a displacement sensor for detecting the position of the moving component, and a pressure sensor for loading force on the chin pad. The MCU can transmit the data collected by each sensor to the associated mobile terminal via Bluetooth module.

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