Temporomandibular joint postoperative mouth opening training mechanism and rehabilitation apparatus

By designing a temporomandibular joint mouth-opening training mechanism driven by a geared servo motor, the fatigue problem caused by manual operation was solved, achieving manual mouth-opening training and adapting to different face shapes.

CN121196871APending Publication Date: 2025-12-26BEIJING STOMATOLOGY HOSPITAL CAPITAL MEDICAL UNIV
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Patent Information

Application Number
CN202511500757.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-21
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Existing mouth-opening training rehabilitation devices require manual operation by patients, leading to soreness in the arms and hands, poor training effects, and are not suitable for patients with different face shapes.

Method used

A mouth-opening training mechanism was designed after temporomandibular joint surgery. The mechanism uses a geared servo motor-driven support frame. The motor controls the opening and closing movements of the top and bottom horizontal moving supports, enabling mouth-opening training without manual operation. The adjustable cap can be used to adapt to different face shapes.

Benefits of technology

It enables mouth-opening training without manual operation, reduces arm and hand fatigue, improves training effectiveness, and adapts to the needs of patients with different facial features.

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Abstract

The invention relates to the technical field of medical apparatus and instruments, and discloses a temporomandibular joint postoperative mouth opening training mechanism and rehabilitation apparatus, the temporomandibular joint postoperative mouth opening training mechanism comprises a wearing cap, and the outer wall of the wearing cap is provided with an elastic band. A first mechanism support and a second mechanism support move forwards, at the moment, a top limiting column and a bottom limiting column slide in limiting grooves in a first shell and a second shell, and the distance between a top horizontal moving support and a bottom horizontal moving support is gradually increased; the distance between the top horizontal moving support and the bottom horizontal moving support can be shortened by reverse operation of the speed reduction servo motor, and the lower jaw of the patient can be moved by repeated opening and closing movement of the top horizontal moving support and the bottom horizontal moving support. The problems that according to an existing mouth opening training device, a patient needs to lift the arms and then continuously press the rehabilitation device through the hands to achieve mouth opening training, long-time training can cause aching pain of the arms and the hands, the rehabilitation device is not standard in use, and the training effect is poor are solved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a postoperative mouth opening training mechanism for temporomandibular joint and a rehabilitation device. BACKGROUND

[0002] The temporomandibular joint is also known as "temporomandibular joint" or "mandibular joint". It is composed of the mandibular head, the temporal mandibular fossa and the articular tubercle, and the left and right joints form a combined joint, which controls the opening and closing of the mouth and the chewing movement. The joint capsule is loose, and the lateral sides are strengthened by the medial and lateral ligaments. The articular disc in the capsule is oval-shaped and composed of fibrocartilage, which is divided into three parts: anterior, middle and posterior. The upper part is saddle-shaped, with a concave front and a convex back, corresponding to the convex and concave contours of the articular tubercle and the mandibular fossa; the lower part is concave and directly opposite the mandibular head, and the periphery is connected to the joint capsule, and the anterior edge is connected to the external pterygoid muscle tendon passing through the joint capsule. The articular disc divides the joint cavity into upper and lower halves. The joint is further reinforced by the sphenomandibular ligament and the styloid mandibular ligament.

[0003] The temporomandibular joint surgery is mainly used for the treatment of temporomandibular joint diseases that are ineffective for conservative treatment and seriously affect the life, and the core purpose is to restore the function of the joint and relieve pain. After the operation, mouth opening training is needed, so a mouth opening training rehabilitation device is needed.

[0004] The existing mouth opening training rehabilitation device uses a manual method for training, and the patient needs to lift his arms and press the rehabilitation device with his hands to achieve mouth opening training. Long-term training can cause soreness in the arms and hands, and the use of the rehabilitation device will gradually become irregular, resulting in poor training effect. SUMMARY

[0005] The present application provides a postoperative mouth opening training mechanism for temporomandibular joint and a rehabilitation device, which solves the problems raised in the background art.

[0006] The present application provides the following technical solution: a postoperative mouth opening training mechanism for temporomandibular joint and a rehabilitation device, comprising a wearing cap, wherein the outer wall of the wearing cap is provided with an elastic band, and the bottom of the wearing cap is provided with a training mechanism body.

[0007] The training mechanism body comprises a shell one, an outer wall of the shell one is provided with a shell two, mechanism supports one and two are installed between the shell one and the shell two, an inner threaded block is installed between the mechanism support one and the mechanism support two, the top and bottom of the mechanism support one and the mechanism support two are movably connected with the left top adjusting support and the right top adjusting support and the left bottom adjusting support and the right bottom adjusting support respectively, the left top adjusting support and the right top adjusting support are provided with a top horizontal moving support at the end away from the mechanism support one, the top horizontal moving support is provided with a top dental brace at the end away from the right top adjusting support, the left bottom adjusting support and the right bottom adjusting support are provided with a bottom horizontal moving support at the end away from the mechanism support one, the bottom horizontal moving support is provided with a bottom dental brace at the end away from the right bottom adjusting support, the inner wall of the inner threaded block is threadedly connected with a lead screw, the lead screw is movably sleeved on the power output shaft of a speed reduction servo motor, and the speed reduction servo motor is installed on the shell two.

[0008] As a preferred technical scheme of the present application, the top of the top horizontal moving support is fixedly provided with a top limiting piece, the top of the top limiting piece is provided with a top limiting column, the top of the bottom horizontal moving support is provided with a bottom limiting piece, the top of the bottom limiting piece is provided with a bottom limiting column, the inner walls of the shell one and the shell two are provided with limiting grooves, and the top limiting column and the bottom limiting column are slidably connected with the limiting grooves.

[0009] As a preferred technical scheme of the present application, the top limiting piece and the top limiting column and the bottom limiting piece and the bottom limiting column are respectively provided with two groups, and the two groups of top limiting pieces and top limiting columns and the two groups of bottom limiting pieces and bottom limiting columns are respectively installed on the top horizontal moving support and the bottom horizontal moving support.

[0010] As a preferred technical scheme of the present application, the outer wall of the shell one is provided with a setting module, the inner wall of the bottom horizontal moving support is provided with a controller, and the setting module, the controller and the speed reduction servo motor are electrically connected.

[0011] As a preferred technical scheme of the present application, the inner wall of the shell two is provided with a storage battery, a transformer and a charging plug, the charging plug penetrates through the shell two, the charging plug, the transformer, the storage battery and the controller are electrically connected, and the storage battery and the speed reduction servo motor are electrically connected.

[0012] As a preferred technical scheme of the present application, the outer edges of the top horizontal moving support and the bottom horizontal moving support are provided with supporting plates, the outer edges of the supporting plates are provided with limiting plates, the outer walls of the top dental brace and the bottom dental brace are provided with anti-dropping pieces, and the anti-dropping pieces are clamped with the limiting plates.

[0013] As a preferred technical scheme of the present application, the outer edge of the top horizontal moving support and the bottom horizontal moving support is provided with a fixing hole, and the outer edge of the top horizontal moving support and the bottom horizontal moving support is provided with a fixing plate, and the inner wall of the fixing plate is provided with a locking bolt.

[0014] As a preferred technical scheme of the present application, the outer edge of the fixing plate is provided with a round rod, and the outer edge of the top horizontal moving support and the bottom horizontal moving support is provided with a round hole, and the round rod is inserted into the round hole.

[0015] As a preferred technical scheme of the present application, the top of the shell one and the shell two is provided with a vertical adjusting support, the outer wall of the vertical adjusting support is slidingly connected with a cross beam, and the end of the cross beam away from the vertical adjusting support is installed on a wearing cap.

[0016] As a preferred technical scheme of the present application, the inner wall of the cross beam is threadedly connected with a fixing bolt, and the fixing bolt is in contact with the vertical adjusting support.

[0017] The present application has the following advantages:

[0018] 1. The postoperative mouth opening training mechanism and rehabilitation device for temporomandibular joint, by moving the mechanism support one and the mechanism support two forward, at this time the top limiting column and the bottom limiting column slide in the limiting grooves on the shell one and the shell two, gradually increasing the distance between the top horizontal moving support and the bottom horizontal moving support, and the reverse operation of the deceleration servo motor can reduce the distance between the top horizontal moving support and the bottom horizontal moving support, and the repeated opening and closing movement of the top horizontal moving support and the bottom horizontal moving support can move the patient's mandible, thereby solving the problem that the patient needs to lift the arm and press the rehabilitation device by hand to realize mouth opening training, and long-term training can cause arm and hand pain, resulting in non-standard use of the rehabilitation device, thereby causing poor training effect.

[0019] 2. The postoperative mouth opening training mechanism and rehabilitation device for temporomandibular joint, by wearing the wearing cap on the patient's head, then wearing the elastic band on the patient's mandible, loosening the fixing bolt, then adjusting the top mouthpiece and the bottom mouthpiece on the training mechanism body to the patient's oral cavity, and when the position of the training mechanism body is appropriate, the fixing bolt is tightened, and when the fixing bolt cannot be tightened, the training mechanism body is fixed, so that the device can be suitable for patients with different face shapes, and the flexibility of the device is improved.

[0020] 3、The postoperative opening training mechanism and rehabilitation device of the temporomandibular joint, by inputting the opening and closing distance parameters and the opening and closing times parameters of the top horizontal moving support and the bottom horizontal moving support into the setting module, the data obtained by the setting module is transmitted to the controller, the controller controls the speed reducing servo motor through calculation, so that the number of activities and the distance data of the patient's mandibular joint are more accurate, and the training effect of the patient is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front perspective structural schematic diagram of the application;

[0022] Figure 2 It is a back perspective structural schematic diagram of the application;

[0023] Figure 3 It is a schematic diagram of the internal structure of the shell two;

[0024] Figure 4 It is a schematic diagram of the internal structure of the shell one;

[0025] Figure 5 It is a schematic diagram of the training mechanism body structure;

[0026] Figure 6 It is a schematic diagram of the top horizontal moving support and the top dental brace structure;

[0027] Figure 7 It is a schematic diagram of the fixed plate and the round rod structure;

[0028] Figure 8 It is a schematic diagram of the anti-drop sheet and the limiting plate structure.

[0029] In the figure: 1, wear cap; 2, elastic band; 3, cross beam; 4, vertical adjusting support; 5, fixed bolt; 6, training mechanism body;

[0030] 601, shell one; 602, shell two; 603, mechanism support one; 604, mechanism support two; 605, left top adjusting support; 606, right top adjusting support; 607, left bottom adjusting support; 608, right bottom adjusting support; 609, top horizontal moving support; 610, bottom horizontal moving support; 611, top dental brace; 612, bottom dental brace; 613, top limiting sheet; 614, top limiting column; 615, bottom limiting sheet; 616, bottom limiting column; 617, anti-drop sheet; 618, supporting plate; 619, limiting plate; 620, fixed plate; 621, fixed hole; 622, locking bolt; 623, controller; 624, setting module; 625, battery; 626, transformer; 627, charging plug; 628, speed reducing servo motor; 629, lead screw; 630, internal threaded block; 631, limiting groove; 632, round hole; 633, round rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-8 A training mechanism and rehabilitation device for opening the mouth after temporomandibular joint surgery includes a cap 1, an elastic band 2 installed on the outer wall of the cap 1, and a training mechanism body 6 at the bottom of the cap 1.

[0033] In the above structure, the training device body 6 is worn on the head, so that the training device body 6 is located in the patient's mouth. The patient bites the training device body 6 with his teeth, and the operation of the training device body 6 enables the patient to complete the mouth opening training.

[0034] The training mechanism body 6 includes a first housing 601, a second housing 602 mounted on the outer wall of the first housing 601, a first mechanism bracket 603 and a second mechanism bracket 604 mounted between the first housing 601 and the second housing 602, and an internal threaded block 630 mounted between the first mechanism bracket 603 and the second mechanism bracket 604. A left top adjusting bracket 605 and a right top adjusting bracket 606, and a left bottom adjusting bracket 607 and a right bottom adjusting bracket 608 are movably connected to the top and bottom of the first mechanism bracket 603 and the second mechanism bracket 604, respectively. The left top adjusting bracket 605 and the right top adjusting bracket 606 are located away from the first mechanism bracket 603. A top horizontal moving bracket 609 is installed at one end. A top toothed sleeve 611 is installed at the end of the top horizontal moving bracket 609 away from the right top adjusting bracket 606. A bottom horizontal moving bracket 610 is installed at the end of the left bottom adjusting bracket 607 and the right bottom adjusting bracket 608 away from the mechanism bracket 603. A bottom toothed sleeve 612 is installed at the end of the bottom horizontal moving bracket 610 away from the right bottom adjusting bracket 608. A lead screw 629 is threadedly connected to the inner wall of the internal thread block 630. The lead screw 629 is movably sleeved on the power output shaft of the reduction servo motor 628. The reduction servo motor 628 is installed on the housing 602.

[0035] In the structure, the screw rod 629 is driven to rotate forward and backward by the deceleration servo motor 628, and the inner threaded block 630 moves left and right when rotating forward and backward, and the mechanism support one 603 and the mechanism support two 604 installed on the inner threaded block 630 can move left and right. When the mechanism support one 603 and the mechanism support two 604 move to the right, the included angle between the left top adjusting support 605, the right top adjusting support 606, the left bottom adjusting support 607, the right bottom adjusting support 608 and the mechanism support one 603 increases, the top horizontal moving support 609 moves upward, and the bottom dental brace 612 moves downward, so that the lower jaw of the patient can be moved, and the device does not need to be manually operated to move the lower jaw.

[0036] In a preferred embodiment: the top of the top horizontal moving support 609 is fixedly provided with a top limiting piece 613, the top of the top limiting piece 613 is provided with a top limiting column 614, the top of the bottom horizontal moving support 610 is provided with a bottom limiting piece 615, the top of the bottom limiting piece 615 is provided with a bottom limiting column 616, the inner walls of the shell one 601 and the shell two 602 are provided with limiting grooves 631, and the top limiting column 614 and the bottom limiting column 616 are in sliding connection with the limiting grooves 631.

[0037] In the structure, the top limiting piece 613, the top limiting column 614, the bottom limiting piece 615 and the bottom limiting column 616 are arranged, the top limiting piece 613 and the top limiting column 614 and the bottom limiting piece 615 and the bottom limiting column 616 can make the top horizontal moving support 609 and the bottom horizontal moving support 610 installed on the shell one 601 and the shell two 602, the top limiting column 614 and the bottom limiting column 616 slide in the limiting grooves 631, so that the top horizontal moving support 609 and the bottom horizontal moving support 610 can only move up and down in the shell one 601 and the shell two 602 in a vertical state, and the rationality of the device is improved.

[0038] In a preferred embodiment: the top limiting piece 613 and the top limiting column 614 and the bottom limiting piece 615 and the bottom limiting column 616 are respectively provided with two groups, and the two groups of top limiting piece 613 and top limiting column 614 and the two groups of bottom limiting piece 615 and bottom limiting column 616 are respectively installed on the top horizontal moving support 609 and the bottom horizontal moving support 610.

[0039] In the structure, the two sets of top limiting pieces 613 and the top limiting columns 614 and the two sets of bottom limiting pieces 615 and the bottom limiting columns 616 are arranged, the two top limiting columns 614 can keep the top horizontal moving bracket 609 in the vertical state in the shell one 601 and the shell two 602, so that the top horizontal moving bracket 609 cannot swing, the two bottom limiting columns 616 also keep the bottom horizontal moving bracket 610 in the vertical state in the shell one 601 and the shell two 602, so that the bottom horizontal moving bracket 610 cannot swing, therefore, the top horizontal moving bracket 609 and the bottom horizontal moving bracket 610 can keep the vertical state in the shell one 601 and the shell two 602 to move, and the stability of the device is improved.

[0040] In a preferred embodiment: the outer wall of the shell one 601 is provided with a setting module 624, the inner wall of the bottom horizontal moving bracket 610 is provided with a controller 623, the setting module 624, the controller 623 and the speed reducing servo motor 628 are electrically connected;

[0041] In the structure, the number of times of training and the distance between the top horizontal moving bracket 609 and the bottom horizontal moving bracket 610 are input into the setting module 624, then the setting module 624 transmits the information to the controller 623, the controller 623 calculates and controls the speed reducing servo motor 628 to run, the power output shaft of the speed reducing servo motor 628 rotates to gradually increase the distance between the top horizontal moving bracket 609 and the bottom horizontal moving bracket 610, at this time, the lower jaw of the patient is gradually opened.

[0042] In a preferred embodiment: the inner wall of the shell two 602 is provided with a storage battery 625, a transformer 626 and a charging plug 627, the charging plug 627 penetrates the shell two 602, the charging plug 627, the transformer 626, the storage battery 625 and the controller 623 are electrically connected, and the storage battery 625 and the speed reducing servo motor 628 are electrically connected;

[0043] In the structure, the data line is inserted into the charging plug 627, the electricity is charged into the storage battery 625 through the transformer 626, the storage battery 625 supplies power to the speed reducing servo motor 628 and the controller 623, so that the equipment can reasonably run.

[0044] In a preferred embodiment: the outer edge of the top horizontal moving bracket 609 and the bottom horizontal moving bracket 610 is provided with a supporting plate 618, the outer edge of the supporting plate 618 is provided with a limiting plate 619, the outer wall of the top dental brace 611 and the bottom dental brace 612 is provided with an anti-drop piece 617, and the anti-drop piece 617 is clamped with the limiting plate 619;

[0045] In the structure, the anti-disengagement sheet 617 on the top mouthpiece 611 is inserted into the limiting plate 619 by placing the top mouthpiece 611 on the bottom limiting column 616 and then pushing the top mouthpiece 611 towards the limiting plate 619, and at this time, the top mouthpiece 611 cannot be moved upwards.

[0046] In a preferred embodiment: the outer edge of the top horizontal moving support 609 and the bottom horizontal moving support 610 is provided with a fixing hole 621, and the outer edge of the top horizontal moving support 609 and the bottom horizontal moving support 610 is provided with a fixing plate 620, and the inner wall of the fixing plate 620 is installed with a locking bolt 622;

[0047] In the structure, the fixing plate 620 is fixed on the top horizontal moving support 609 by the locking bolt 622, and the fixing plate 620 can block the top mouthpiece 611, so that the top mouthpiece 611 cannot move forward, and at this time, the top mouthpiece 611 can be stably fixed on the top horizontal moving support 609, improving the stability when the top mouthpiece 611 is separated from the teeth.

[0048] In a preferred embodiment: the outer edge of the fixing plate 620 is installed with a round rod 633, and the outer edge of the top horizontal moving support 609 and the bottom horizontal moving support 610 is provided with a round hole 632, and the round rod 633 is inserted into the round hole 632;

[0049] In the structure, the round rod 633 is inserted into the round hole 632, and the fixing plate 620 is fixed on the top horizontal moving support 609 by the locking bolt 622, so that the fixing plate 620 is positioned by the locking bolt 622 and the round rod 633, and the fixing plate 620 cannot swing left and right, so that the fixing plate 620 always remains parallel to the top mouthpiece 611.

[0050] In a preferred embodiment: the top of the shell one 601 and the shell two 602 is installed with a vertical adjusting support 4, the outer wall of the vertical adjusting support 4 is slidingly connected with a cross beam 3, and the end of the cross beam 3 away from the vertical adjusting support 4 is installed on the wearing cap 1;

[0051] In the structure, the training mechanism body 6 can be connected to the wearing cap 1 through the cross beam 3 and the vertical adjusting support 4 by the setting of the cross beam 3 and the vertical adjusting support 4, and the vertical adjusting support 4 can slide in the cross beam 3, so that the distance between the training mechanism body 6 and the wearing cap 1 can be adjusted, so that the device can be suitable for patients with different face shapes, and the flexibility of the device is improved.

[0052] In a preferred embodiment: the inner wall of the cross beam 3 is threadedly connected with a fixing bolt 5, and the fixing bolt 5 is in contact with the vertical adjusting support 4;

[0053] In the above structure, through the setting of the fixing bolt 5, when the training mechanism body 6 is adjusted to the appropriate position, the fixing bolt 5 is screwed, and when the fixing bolt 5 cannot be screwed, the fixing bolt 5 is in contact with the vertical adjusting support 4, so that the vertical adjusting support 4 cannot move in the cross beam 3, and at this time the training mechanism body 6 is positioned.

[0054] Working principle; in use, wear the cap 1 on the head of the patient, then wear the elastic band 2 on the lower jaw of the patient, then loosen the fixing bolt 5, then adjust the top mouthpiece 611 and the bottom mouthpiece 612 on the training mechanism body 6 to the oral cavity of the patient, when the position of the training mechanism body 6 is appropriate, screw the fixing bolt 5, when the fixing bolt 5 cannot be screwed, at this time the training mechanism body 6 is fixed, then place the upper teeth of the patient in the top mouthpiece 611 and the lower teeth in the bottom mouthpiece 612, before this, the opening and closing distance parameter and the opening and closing times parameter of the top horizontal moving support 609 and the bottom horizontal moving support 610 need to be input into the setting module 624, the data obtained by the setting module 624 is transmitted to the controller 623, the controller 623 controls the speed reducing servo motor 628 through calculation, the speed reducing servo motor 628 runs to drive the screw rod 629 to rotate, the screw rod 629 rotates to drive the internal threaded block 630, the mechanism support one 603 and the mechanism support two 604 to move, when the mechanism support one 603 and the mechanism support two 604 move forward, the included angle between the left top adjusting support 605 and the left bottom adjusting support 607 and the mechanism support one 603 becomes larger, at this time the top limiting column 614 and the bottom limiting column 616 slide in the limiting groove 631 on the shell one 601 and the shell two 602, gradually making the distance between the top horizontal moving support 609 and the bottom horizontal moving support 610 larger, the reverse operation of the speed reducing servo motor 628 can make the distance between the top horizontal moving support 609 and the bottom horizontal moving support 610 smaller, and the parameters set by the operation of the speed reducing servo motor 628 make the mandibular joint of the patient move.

[0055] It should be noted that, in the present document, the terms such as first and second, etc. are used merely to differentiate one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0056] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A temporomandibular joint surgery mouth-opening training device, comprising wearing a cap (1), characterized in that: The outer wall of the cap (1) is fitted with an elastic band (2), and the bottom of the cap (1) is provided with a training mechanism body (6). The training mechanism body (6) includes a housing one (601), a housing two (602) is installed on the outer wall of the housing one (601), a mechanism support one (603) and a mechanism support two (604) are installed between the housing one (601) and the housing two (602), an internal thread block (630) is installed between the mechanism support one (603) and the mechanism support two (604), and a left top adjustment bracket (605) and a right top adjustment bracket (606) and a left bottom adjustment bracket (607) and a right bottom adjustment bracket (608) are movably connected to the top and bottom of the mechanism support one (603) and the mechanism support two (604), respectively. The left top adjustment bracket (605) and the right top adjustment bracket (606) are away from the mechanism support one (601) (602). 3) One end is equipped with a top horizontal moving bracket (609), and the end of the top horizontal moving bracket (609) away from the right top adjusting bracket (606) is equipped with a top toothed sleeve (611). The ends of the left bottom adjusting bracket (607) and the right bottom adjusting bracket (608) away from the mechanism bracket one (603) are equipped with bottom horizontal moving brackets (610). The end of the bottom horizontal moving bracket (610) away from the right bottom adjusting bracket (608) is equipped with a bottom toothed sleeve (612). The inner wall of the internal thread block (630) is threaded with a lead screw (629). The lead screw (629) is movably sleeved on the power output shaft of the reduction servo motor (628). The reduction servo motor (628) is installed on the housing two (602).

2. The temporomandibular joint surgery mouth opening training mechanism according to claim 1, characterized in that: The top of the top horizontal moving bracket (609) is fixedly equipped with a top limiting piece (613), and a top limiting post (614) is installed on the top of the top limiting piece (613). The top of the bottom horizontal moving bracket (610) is equipped with a bottom limiting piece (615), and a bottom limiting post (616) is installed on the top of the bottom limiting piece (615). The inner walls of the first housing (601) and the second housing (602) are both provided with limiting grooves (631). The top limiting post (614) and the bottom limiting post (616) are both slidably connected to the limiting grooves (631).

3. The temporomandibular joint surgery mouth opening training mechanism according to claim 2, characterized in that: The top limiting piece (613) and top limiting post (614) and the bottom limiting piece (615) and bottom limiting post (616) are respectively provided in two sets, and the two sets of top limiting pieces (613) and top limiting post (614) and the two sets of bottom limiting pieces (615) and bottom limiting post (616) are respectively installed on the top horizontal moving bracket (609) and the bottom horizontal moving bracket (610).

4. The temporomandibular joint surgery mouth opening training mechanism according to claim 1, characterized in that: A setting module (624) is installed on the outer wall of the housing (601), and a controller (623) is installed on the inner wall of the bottom horizontal moving bracket (610). The setting module (624), the controller (623), and the deceleration servo motor (628) are electrically connected.

5. The temporomandibular joint postoperative mouth opening training mechanism according to claim 1, characterized in that: The inner wall of the housing (602) is equipped with a storage battery (625), a transformer (626) and a charging plug (627). The charging plug (627) passes through the housing (602). The charging plug (627), the transformer (626), the storage battery (625) are electrically connected to the controller (623). The storage battery (625) is electrically connected to the geared servo motor (628).

6. The temporomandibular joint postoperative mouth opening training mechanism according to claim 1, characterized in that: The outer edges of the top horizontal moving bracket (609) and the bottom horizontal moving bracket (610) are both equipped with a support plate (618), and the outer edges of the support plate (618) are equipped with a limiting plate (619). The outer walls of the top dental sleeve (611) and the bottom dental sleeve (612) are both equipped with anti-detachment pieces (617), and the anti-detachment pieces (617) are engaged with the limiting plate (619).

7. The temporomandibular joint surgery mouth opening training mechanism according to claim 6, characterized in that: The top horizontal moving bracket (609) and the bottom horizontal moving bracket (610) are both provided with fixing holes (621) on their outer edges. The top horizontal moving bracket (609) and the bottom horizontal moving bracket (610) are both provided with fixing plates (620) on their outer edges. Locking bolts (622) are installed on the inner wall of the fixing plates (620).

8. The temporomandibular joint postoperative mouth opening training mechanism according to claim 7, characterized in that: A round rod (633) is installed on the outer edge of the fixed plate (620). The outer edges of the top horizontal moving bracket (609) and the bottom horizontal moving bracket (610) are both provided with round holes (632). The round rod (633) is inserted into the round hole (632).

9. A temporomandibular joint postoperative mouth opening training rehabilitation device according to any one of claims 1-8, characterized in that: The top of the first housing (601) and the second housing (602) are equipped with vertical adjustment brackets (4), and the outer wall of the vertical adjustment brackets (4) is slidably connected with a crossbeam (3). The end of the crossbeam (3) away from the vertical adjustment brackets (4) is installed on the cap (1).

10. A temporomandibular joint surgery mouth opening training rehabilitation device according to claim 9, characterized in that: The inner wall of the crossbeam (3) is threaded with a fixing bolt (5), which is in contact with the vertical adjustment bracket (4).

Citation Information

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