CN109984916B - Temporomandibular joint rehabilitation training device - Google Patents
Temporomandibular joint rehabilitation training device Download PDFInfo
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- CN109984916B CN109984916B CN201910320908.3A CN201910320908A CN109984916B CN 109984916 B CN109984916 B CN 109984916B CN 201910320908 A CN201910320908 A CN 201910320908A CN 109984916 B CN109984916 B CN 109984916B
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- 210000001738 temporomandibular joint Anatomy 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims description 14
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- 229910052742 iron Inorganic materials 0.000 description 2
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- 206010023232 Joint swelling Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 208000028911 Temporomandibular Joint disease Diseases 0.000 description 1
- 206010043220 Temporomandibular joint syndrome Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0218—Drawing-out devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/02—Head
- A61H2205/026—Mandible
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses a temporomandibular joint rehabilitation trainer which is used for rehabilitation training of temporomandibular joints and mainly comprises a power assembly, a transmission assembly, an occlusion assembly and a shell, wherein the power assembly is arranged inside the side wall of the shell and is in driving connection with the transmission assembly, the occlusion assembly is arranged outside an opening at the left end of the shell and is connected with the transmission assembly. The power assembly mainly comprises a clockwork spring, a clockwork gear, a clockwork knob, a ratchet wheel and a pawl, the transmission assembly mainly comprises a transmission rotating shaft, an incomplete gear, a lever gear and a warping rod, the incomplete gear is in transmission connection with the lever gear, the rotating shaft end part of the lever gear is rotatably arranged on the side wall of the shell, a rotating rod is arranged on the side face of the lever gear, the rotating rod is arranged in a sliding groove in the right end part of the warping rod, and the left end part of the warping rod is connected with the meshing assembly through a supporting shaft. The incomplete gear can assist a patient to open the mouth under the driving of the power assembly and does not cause resistance when the patient closes the jaw joint.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a temporomandibular joint rehabilitation trainer.
Background
Temporomandibular joint disorder is a common oral and maxillofacial disease, is arranged at the fourth position by WTO in oral diseases affecting human health, and patients can have pains of temporomandibular joint parts and corresponding soft tissues clinically, abnormal mandibular movement, limited mouth opening, incapability of occluding hard objects, joint ringing, breaking sound and the like. The causes of the disease are thought to be related to mental factors, local trauma, occlusion disorders, etc., and the specific pathogenesis is not clear.
The existing treatment method mainly comprises drug treatment, acupuncture treatment and exercise rehabilitation treatment, among a plurality of conservative treatment methods, the exercise rehabilitation treatment of patients by using the bite plate is non-invasive reversible treatment, the exercise of the temporomandibular joint can prevent cartilage deterioration, stimulate joint healing and reduce joint pain and swelling, and particularly for patients with joint reverberation and limited opening, the earlier exercise is more beneficial to recovery, so that the research on the rehabilitation exercise of the temporomandibular joint has important significance.
Patent application No.: 201611251522.4 discloses a temporomandibular joint training device, which comprises a support part and a body part, wherein the body part comprises a shell, a sliding sleeve, a sliding core, a spring, a pressure adjusting nut, a pressure adjusting screw and a position adjusting nut. The elastic force of the spring assists the patient to open the mouth, so that the lower jaw reciprocates.
Patent application No.: 201711276160.9 discloses a temporomandibular joint retractor, comprising a first bite piece, a second bite piece, a first adjustment handle and a second adjustment handle. The strutting force of both sides can be adjusted through adjustment handle, carry out the pertinence to the patient and pull the exercise.
The existing temporomandibular joint training apparatus has the following problems when in use:
1) the elastic force of the spring is used for assisting the patient to open the mouth, but the patient needs to compress the spring when closing the mouth, so that the lower jaw can be closed by overcoming the elastic force of the spring, and the fatigue of muscles and joints in the lower jaw area is easily caused during the exercise process.
2) The existing rehabilitation training equipment can only assist a patient to complete the motion training of the lower jaw in the up-down direction, but cannot assist the patient to perform the forward extension and backward movement training of the lower jaw, and the training of the lower jaw in the front-back direction is beneficial to the normal relationship recovery of the condylar disk of the lower jaw joint.
Therefore, the temporomandibular joint rehabilitation training device is needed to be designed, which can assist a patient to perform mouth opening training, does not cause resistance to the patient when the lower jaw is closed, and can assist the patient to perform motion training in the front-back direction of the mandibular joint according to needs.
Disclosure of Invention
Aiming at the defects in the prior art, the temporomandibular joint rehabilitation trainer can assist a patient to perform mouth opening training and can not cause resistance to the patient when the lower jaw is closed.
The technical scheme adopted by the invention for solving the technical problems is as follows: a temporomandibular joint rehabilitation training device is used for rehabilitation training of temporomandibular joints and mainly comprises a power assembly, a transmission assembly, an occlusion assembly and a shell, wherein at least one group of power assembly is arranged inside the side wall of the shell and is in driving connection with the transmission assembly, the occlusion assembly is arranged on the outer side of a left end opening of the shell, and the occlusion assembly is connected with the transmission assembly.
Power component mainly includes clockwork spring, clockwork spring gear, clockwork spring knob, ratchet and pawl, the clockwork spring knob sets up the outside of casing, the rotation axis is connected to the clockwork spring knob, the cover is equipped with on the rotation axis the clockwork spring gear, the clockwork spring sets up inside the clockwork spring gear, just the one end of clockwork spring is fixed to be set up on the rotation axis, the other one end setting of clockwork spring is in the inside of clockwork spring gear. The ratchet wheel is fixedly arranged on the rotating shaft, the pawl is arranged on the inner wall of the shell and clamped between the gear teeth of the ratchet wheel, and the inner wall of the shell is provided with a pressing sheet through a torsion spring, and the pressing sheet is pressed on the pawl.
The transmission assembly mainly includes transmission pivot, incomplete gear, lever gear and sticks up the pole, the rotatable setting of transmission pivot is in the inside of casing, the transmission pivot with clockwork spring gear drive connects, be provided with one in the transmission pivot at least incomplete gear, incomplete gear with lever gear drive connects, the rotatable setting of pivot tip of lever gear is in on the lateral wall of casing, be provided with the bull stick on the side of lever gear, the bull stick sets up in the spout of stick up pole right side tip, the rotatable setting of left side tip of stick up the pole is on the back shaft of casing inside.
The interlock subassembly mainly includes layer board and snap-in plate, the snap-in plate passes through the connecting rod to be connected the left end of stick up the pole, the layer board is the umbrella-type just the layer board sets up the top of snap-in plate, the layer board pass through the bracing piece with the casing is connected.
Furthermore, the incomplete gear is movably sleeved on the transmission rotating shaft and is connected with a direction changing assembly, and a stretching assembly is further arranged on the bottom surface inside the shell.
The direction changing assembly mainly comprises a direction changing rotating shaft, a sliding rod and a shifting plate, wherein two ends of the direction changing rotating shaft are rotatably arranged on the side wall of the shell, a direction changing knob connected with the direction changing rotating shaft is arranged on the outer side of the shell, a guide groove is formed in the surface of the direction changing rotating shaft, the shifting plate is slidably arranged on the sliding rod, a guide rod arranged inside the guide groove is arranged at the upper end of the shifting plate, and the lower rotatable sleeve of the shifting plate is arranged on the sleeve on one side of the incomplete gear.
The stretching assembly mainly comprises a sliding plate, a steel wire rope, a return spring and a telescopic cylinder, wherein the sliding plate is slidably arranged on the bottom surface of the shell, gear teeth are arranged on the surface of the sliding plate, and when the sliding plate rotates and changes the rotating shaft, the shifting plate can shift the incomplete gear to the position above the sliding plate. The wire rope is wound on the rollers in the shell, the wire rope is connected between the left end of the sliding plate and the telescopic cylinder, the telescopic cylinder is movably sleeved at the left end of the connecting rod, the left end of the telescopic cylinder is connected with the snap-in plate, and a reset spring is arranged in the telescopic cylinder.
Furthermore, a rotary damper is arranged between the transmission rotating shaft and the side wall of the shell, a stop block is arranged on the end face of the front side of the transmission rotating shaft, and a sliding switch is arranged on the outer side of the shell above the stop block. The sliding switch mainly comprises a lantern ring and a brake rod, the brake rod is arranged in the lantern ring in a vertically sliding mode, a driving plate is arranged in the middle of the brake rod, and an adsorption magnet is arranged on the driving plate.
Further, the both ends of lever gear's pivot are provided with adjustment mechanism, adjustment mechanism sets up the outside of casing, adjustment mechanism mainly includes reset torsion spring, swivel and go-between, reset torsion spring cover is established in lever gear's the pivot, just reset torsion spring's both ends are fixed respectively lever gear's pivot and on the go-between, the mobilizable cover of swivel is established the outside of go-between. The outside of casing is provided with the support ring, be provided with the screens groove on the support ring, the rotatable setting of go-between is in the support ring outside, fixedly on the side of swivel be provided with screens groove complex screens magnet.
Furthermore, the supporting plate is connected with the connecting plate through a universal ball head, and a plurality of through holes are formed in the supporting plate. The occluding plate is U-shaped, and a U-shaped groove with a downward opening is formed in the lower surface of the occluding plate.
Furthermore, a limiting block is fixedly arranged on the bottom surface of the shell at the left end of the sliding plate, the left end of the sliding plate is connected with an adjusting spring, the left end of the adjusting spring is connected with an adjusting rod, the adjusting rod is arranged on the vertical wall of the shell through threaded connection, and the left end of the adjusting rod penetrates through the vertical wall of the shell and is arranged on the outer side of the shell.
Further, the bracing piece mainly include with the linkage segment that the casing is connected, crooked section of downwarping, set up the straightway and the perk section of upwarping above the bite-plate, the bottom of straightway with the upper surface contact of bite-plate, the perk section with the layer board is connected.
The invention has the beneficial effects that:
1. the incomplete gear can assist a patient to open the mouth under the driving of the power assembly and cannot cause resistance when the patient closes the jaw joint.
2. The articulating assembly of the present invention can be switched between assisting the mandibular joint up and down movement and forward and backward movement by the direction changing assembly.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic diagram of the internal top view structure of the present invention;
FIG. 4 is a schematic view of the internal three-dimensional structure of the present invention;
FIG. 5 is a schematic sectional view of the present invention;
FIG. 6 is a schematic partial perspective view of the power assembly of the present invention;
FIG. 7 is a schematic illustration in partial cross-sectional view of the power assembly of the present invention;
FIG. 8 is a schematic perspective view of a redirecting assembly of the present invention;
FIG. 9 is a schematic perspective view of a slide switch according to the present invention;
FIG. 10 is a front view of the ratchet and pawl of the present invention;
FIG. 11 is a schematic drawing showing a partial perspective cross-sectional view of the stretching assembly of the present invention;
FIG. 12 is a schematic sectional view of the telescopic cylinder of the present invention;
FIG. 13 is a partial perspective view of the clutch assembly of the present invention;
FIG. 14 is a schematic perspective exploded view of the adjustment mechanism of the present invention;
FIG. 15 is a schematic cross-sectional view of an adjustment mechanism of the present invention;
fig. 16 is a schematic perspective view of a bite plate of the present invention.
In the figure, a power assembly 1, a clockwork spring 10, a clockwork gear 11, a seal panel 111, a clockwork knob 12, a ratchet wheel 13, a pawl 14, a rotating shaft 15, a support bracket 16, a pressing piece 17, a transmission assembly 2, a transmission rotating shaft 21, a transmission gear 211, a stopper 212, an incomplete gear 22, a sleeve 221, a lever gear 23, a rotating rod 231, a rocker 24, a support shaft 25, a slide switch 26, a collar (261, 262), a brake rod 263, a dial 264, an adsorption magnet 265, a rotary damper 266, a snap component 3, a supporting plate 31, a snap plate 32, a U-shaped groove 321, a connecting rod 33, a stopper ring 331, a support rod 34, a connecting section 341, a bending section 342, a straight section 343, a tilting section 344, a universal ball head 35, a housing 4, a stopper 41, a support ring 42, a clamping groove 43, a redirection assembly 5, a redirection rotating shaft 51, a cylindrical section 511, redirection knob 54, stretching assembly 6, sliding plate 61, wire rope 62, return spring 63, telescopic cylinder 64, roller 65, adjusting spring 66, adjusting rod 67, adjusting mechanism 7, return torsion spring 71, swivel 72, connecting ring 73 and clamping magnet 74.
Detailed Description
For a better understanding of the present invention, embodiments thereof are explained in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 16, a temporomandibular joint rehabilitation training device is used for temporomandibular joint rehabilitation training and can assist a patient in performing mouth opening and mandibular joint traction training. As shown in fig. 4, the invention mainly comprises a power assembly 1, a transmission assembly 2, an engagement assembly 3 and a shell 4, wherein the power assembly 1 and the transmission assembly 2 are arranged inside the shell 4, a group of power assemblies 1 are arranged on the front side wall and the rear side wall of the shell 4, the transmission assembly 2 is arranged inside the shell 4, two groups of power assemblies 1 are connected with the transmission assembly 2 through a belt, the engagement assembly 3 is arranged on the left side of the left end opening of the shell 4, and the engagement assembly 3 is connected with the transmission assembly 2.
As shown in fig. 6 and 7, the power assembly 1 mainly includes a clockwork spring 10, a clockwork gear 11, a clockwork knob 12, a ratchet 13 and a pawl 14, the clockwork spring knob 12 is rotatably arranged at the outer side of the shell 4, a rotating shaft 15 is arranged on the clockwork spring knob 12, one end of the rotating shaft 15 penetrates through the shell 4 and is rotatably arranged on a support frame 16 in the shell 4, the spring gear 11 is sleeved on the rotating shaft 15, as shown in fig. 7, the side of the power spring gear 11 has two seal panels 111, the seal panels 111 are rotatably provided on the rotary shaft 15 via bearings, the power spring 10 is provided inside the power spring gear 11, and is located between the two sealing panels 111, one end of the clockwork spring 10 is fixedly arranged on the rotating shaft 15, the other end of the clockwork spring 10 is fixedly connected to the inside of the clockwork gear 11. The ratchet wheel 13 is fixedly arranged on the rotating shaft 15, the pawl 14 is rotatably arranged on the inner wall of the shell 4, the pawl 14 is clamped between the gear teeth of the ratchet wheel 13, a pressing sheet 17 is arranged on the inner wall of the shell 4 through a torsion spring, and the pressing sheet 17 presses the pawl 14 under the torsion action of the torsion spring and presses the pawl 14 between the gear teeth of the ratchet wheel 13. When the power spring knob 12 is rotated, the rotation shaft 15 rotates to tighten the power spring 10, energy is accumulated in the power spring 10, and the power spring gear 11 is rotated by the elastic force of the power spring 10.
The transmission assembly 2 is arranged inside the left shell 4 of the power assembly 1, as shown in fig. 5, the transmission assembly 2 mainly comprises a transmission rotating shaft 21, an incomplete gear 22, a lever gear 23 and a warping rod 24, the transmission rotating shaft 21 is rotatably arranged inside the shell 4, two ends of the transmission rotating shaft 21 are provided with transmission gears 211, the two transmission gears 211 are respectively connected with the two clockwork gears 11 through belts, the transmission rotating shaft 21 is provided with two incomplete gears 22, the two incomplete gears 22 are respectively connected with the two lever gears 23 in a transmission manner, two ends of the rotating shaft of the lever gear 23 are rotatably arranged on the side wall of the shell 4 through bearings, two opposite side surfaces of the lever gear 23 are respectively provided with a rotating rod 231 vertical to the side surface, the rotating rod 231 is arranged in a sliding groove at the right side end of the warping rod 24, the rotating rod 231 can rotate and move in the sliding groove, and the left end of the tilting rod 24 is rotatably disposed on the supporting shaft 25 inside the housing 4. The clockwork gear 11 passes through the belt drive the transmission pivot 21 is rotatory, incomplete gear 22 in the transmission pivot 21 is rotatory, works as the teeth of a cogwheel on the incomplete gear 22 with can drive when the teeth of a cogwheel meshing of lever gear 23 is rotatory, the bull stick 231 drive on the lever gear 23 stick up the pole 24 and center on the back shaft 25 is rotatory.
Since it is necessary for the patient to bite the bite block 3 when the spring knob 12 is rotated to accumulate the elastic force in the spring 10, and to avoid the rotation of the transmission shaft 21 when the spring knob 12 is rotated, which may cause fatigue of the patient, a stopper 212 is provided on an end surface of the transmission shaft 21 protruding from the case 4 on the front side, and a slide switch 26 is provided on the outer side of the case 4 above the stopper 212. As shown in fig. 9, the slide switch 26 mainly includes a collar 261 and a brake lever 263, the collar 261 has two collars 261 and is vertically fixed and disposed outside the housing 4, the brake lever 263 is vertically slidably disposed inside the two collars (261, 262), a dial 264 is disposed at a middle position of the brake lever 263, an adsorption magnet 265 is disposed on the dial 264, the collars (261, 262) are made of iron sheets, the dial 264 is shifted downward to move the brake lever 263 downward in the collars (261, 262), the adsorption magnet 265 on the dial 264 can be adsorbed on the collar 261 below, and a lower end of the brake lever 263 blocks the stopper 212, so that the rotation of the transmission rotation shaft 21 is stopped. When the transmission rotating shaft 21 needs to be started, the dial 264 is shifted upwards, the absorption magnet 265 on the dial 264 is absorbed on the upper lantern ring 262, the lower end of the brake lever 263 no longer blocks the stop block 212, and the transmission rotating shaft 21 starts to rotate under the driving of the power assembly 1. In order to prevent the transmission rotating shaft 21 from generating impact on the patient due to too high speed when being started, a rotation damper 266 is arranged between the transmission rotating shaft 21 and the side wall of the housing 4, so that the rotation of the transmission rotating shaft 21 is more gradual.
Interlock subassembly 3 mainly includes layer board 31 and bite-block plate 32, bite-block plate 32 passes through connecting rod 33 to be connected stick up the left end of pole 24, layer board 31 is the umbrella-type just layer board 31 sets up the top of bite-block plate 32, layer board 31 pass through bracing piece 34 with the left side upper end of casing 4 is connected. When the tilting lever 24 rotates, the engagement plate 32 can move downward by the principle of a lever.
In order to assist the patient to do traction training to the mandible in the front and back direction, a direction changing assembly 5 is further arranged inside the shell 4 on the left side of the transmission assembly 2, and a stretching assembly 6 is arranged on the inner bottom surface of the shell 4. The surface of the transmission rotating shaft 21 is provided with gear teeth, the incomplete gear 22 is movably sleeved on the outer side of the gear teeth on the transmission rotating shaft 21, so that the incomplete gear 22 can move along the axial direction of the transmission rotating shaft 21 and can be driven to rotate by the transmission rotating shaft 21.
As shown in fig. 8, the direction changing assembly 5 mainly includes a direction changing rotation shaft 51, a slide rod 52 and a toggle plate 53, both ends of the redirecting rotating shaft 51 are rotatably arranged on the side wall of the shell 4 through bearings, a redirection knob 54 connected with the redirection rotating shaft 51 is arranged on the outer side of the shell 4, the redirection rotating shaft 51 is provided with two sections of cylindrical sections 511, the diameter of the cylindrical section 511 is larger than that of the redirection rotating shaft 51, a guide groove 512 is arranged on the surface of the cylindrical section 511, the two ends of the sliding rod 52 are fixedly connected to the inside of the housing 4, the toggle plate 53 is slidably disposed on the sliding rod 52, and the upper end of the toggle plate 53 is provided with a vertical guide rod 513, the upper end of the guide rod 513 is arranged inside the guide groove 512, the lower part of the toggle plate 53 is rotatably sleeved on the sleeve 221 at one side of the incomplete gear 22. When the direction-changing button is rotated, the direction-changing rotating shaft 51 rotates, the guide rod 513 is driven by the guide groove 512 to move in the guide groove 512, and the incomplete gear 22 is driven by the poke plate 53 to move on the transmission rotating shaft 21.
The stretching assembly 6 mainly comprises a sliding plate 61, a steel wire rope 62, a return spring 63 and a telescopic cylinder 64, a T-shaped sliding block is arranged on the bottom surface of the shell 4, the lower portion of the sliding plate 61 is slidably arranged on the bottom surface of the shell 4 through a sliding groove and the T-shaped sliding block in a matched mode, gear teeth are arranged on the upper surface of the sliding plate 61, when the direction-changing rotating shaft 51 rotates, the incomplete gear 22 can be shifted to the upper portion of the sliding plate 61 along the axial direction of the transmission rotating shaft 21 by the shifting plate 53, so that the gear teeth of the incomplete gear 22 are in transmission connection with the gear teeth on the upper portion of the sliding plate 61, and the two sliding plates 61 are respectively connected with the two incomplete gears 22. The wire rope 62 is wound on a plurality of rollers 65 inside the housing 4, the right end of the wire rope 62 is connected to the left ends of the two sliding plates 61, and the left end of the wire rope 62 is connected to the telescopic cylinder 64. As shown in fig. 12, the telescopic cylinder 64 is sleeved on the left end of the connecting rod 33, the left end of the connecting rod 33 is provided with a limit ring 331 for preventing the telescopic cylinder 64 from being separated from the connecting rod 33, the return spring 63 is arranged inside the telescopic cylinder 64, and the left end of the telescopic cylinder 64 is fixedly connected with the bite plate 32.
In order to be able to adjust slide 61's tensile force, every be provided with stopper 41 on the casing 4 bottom surface of slide 61 left end, as shown in fig. 11, two slide 61's left end respectively is connected with an adjusting spring 66, adjusting spring 66's left end is connected with adjusts pole 67, adjust pole 67 through threaded connection and set up on the vertical wall of casing 4, just adjust pole 67's left end and pass the vertical wall of casing 4 sets up the outside of casing 4 through rotating adjust pole 67 can be for adjusting spring 66 exerts the deformation volume, makes adjusting spring 66 has pulling force or elasticity, and then adjusts slide 61 tensile force when sliding right to adapt to different patients ' demand.
In order to ensure the track of the bite plate 32 sliding left and right, the support rod 34 mainly includes a connection section 341, a curved section 342, a straight section 343, and a tilted section 344, the connection section 341 is connected to the left end above the housing 4, the curved section 342 is connected to the connection section 341, the left end of the curved section 342 is bent downward and connected to the straight section 343, the left end of the straight section 343 is the tilted section 344 tilted upward, and the support plate 31 is connected to the tilted section 344. The bottom of the straight line segment 343 is in contact with the upper surface of the bite plate 32, and when the bite plate 32 is pulled by the sliding plate 61 to move rightward, the upper surface of the bite plate 32 is kept in contact with the straight line segment 343, so that the bite plate 32 can move linearly rightward stably, and the problems of tooth collision and the like caused by the large vertical movement of the lower jaw joint of a patient when the lower jaw is pulled are avoided.
When the redirection knob 54 is rotated to toggle the incomplete gear 22, the incomplete gear 22 is separated from the lever gear 23, the incomplete gear 22 moves above the sliding plate 61, the incomplete gear 22 drives the sliding plate 61 to move rightwards, and then the telescopic cylinder 64 and the bite plate 32 are pulled to move rightwards through the steel wire rope 62, so that the mandible of a patient can be stretched. After the gear teeth of the incomplete gear 22 complete the meshing transmission with the gear teeth on the upper surface of the sliding plate 61, the sliding plate 61 returns to the initial position (i.e. the leftmost position is located at the position of the limiting block 41) under the elastic force of the return spring 63, and waits for the next meshing transmission of the incomplete gear 22.
When the incomplete gear 22 drives the lever gear 23 to rotate, when the teeth on the incomplete gear 22 are in meshing transmission with the lever gear 23, the lever gear 23 can be driven to rotate, so that the bite plate 32 is opened downwards, the mouth opening of a patient is assisted, when the incomplete gear 22 continues to rotate, so that the teeth on the incomplete gear 22 are separated from the teeth of the lever gear 23, the meshing transmission between the incomplete gear 22 and the lever gear 23 is disconnected, at the moment, the lever gear 23 is not influenced by the driving force any more, a patient can bite the bite plate 32 to an initial position (namely, the highest position which can be reached by the bite plate 32, at the moment, the upper surface of the bite 32 is in contact with the straight line segment 343) by means of own biting force, and the mouth closing action is completed, in the process, because the teeth of the lever gear 23 and the incomplete gear 22 are disconnected, the patient is therefore not affected by the resistance of the spring 10 and can easily complete the closure without causing muscular fatigue near the mandibular joint.
Since the number of teeth on the incomplete gear 22 is fixed, the angle at which the lever gear 23 can be driven to rotate is fixed when the incomplete gear 22 rotates one revolution, and therefore, if the patient does not bite the bite plate 32 to the initial position due to the difficulty in closing the mouth or other reasons after the lever gear 23 drives the bite plate 32 to assist the patient in opening the mouth, after the incomplete gear 22 rotates for one circle, when the gear teeth on the incomplete gear 22 are meshed with the lever gear 23 for transmission again, the lower jaw of the patient is opened by a fixed angle again on the basis of the opening angle of the patient, the opening angle and the opening angle reserved by the patient can be overlapped, so that the condition of overlarge opening amplitude occurs, and the lower jaw joint of the patient can be excessively dragged at the moment, so that the recovery of the patient is not facilitated.
In order to avoid the above situation, it is necessary to provide the bite plate 32 with a function of automatically returning to the initial position, so that the adjusting mechanism 7 is provided at both ends of the rotating shaft of the lever gear 23, the adjusting mechanism 7 can provide a torque to the rotating shaft of the lever gear 23, and when the incomplete gear 22 is disengaged from the lever gear 23, the lever gear 23 can be driven by the torque of the adjusting mechanism 7 to rotate in the opposite direction, so that the bite plate 32 returns to the initial position, i.e., the position of the patient at the time of the patient's mouth closing.
When the occluding plate 32 is at the initial position, the reset torsion spring 71 is in a natural relaxed state, when the incomplete gear 22 drives the lever gear 23 to rotate, the occluding plate 32 assists the patient to open the mouth, meanwhile, the reset torsion spring 71 is rotated to generate reverse torque, and after the meshing transmission of the incomplete gear 22 and the lever gear 23 is finished, the lever gear 23 reversely rotates under the torque action of the reset torsion spring 71 to enable the occluding plate 32 to recover to the initial position. Simultaneously, can with swivel 72 outwards slides, works as on the swivel 72 screens magnet 74 with screens groove 43 after separately, it is rotatory swivel 72 can twist reverse reset spring 63 makes reset spring 63 produces the moment of torsion, goes into screens magnet 74 on the swivel 72 after will rotating screens groove 43, can make reset torsion spring 71 keeps moment this moment, and then can for the motion that opens of occlusal plate 32 provides power or resistance, reaches the effect of adjusting the dynamics of opening one's mouth, makes the dynamics of opening one's mouth of occlusal plate 32 can be adjusted to the needs of the different patients of adaptation.
In order to enable the splint 31 to have a small-amplitude rotation function so as to make the patient more comfortable when using, the splint 31 is connected with the tilting section 344 through the universal ball head 35, and a plurality of through holes are formed in the splint 31 so as to increase the air permeability of the splint 31 and increase the friction force between the splint 31 and the upper jaw. The bite plate 32 is U-shaped and is used for being matched with teeth on the mandible of a patient, a U-shaped groove 321 with a downward opening is formed in the lower surface of the bite plate 32, and the U-shaped groove 321 can be sleeved on the teeth of the patient to increase the binding force between the bite plate 32 and the mandible.
The working process of the invention is as follows:
the patient can put the supporting plate 31 under the upper jaw, the mandible tooth bites the bite plate by turning the dial 264, the patient can move the brake lever 263 upwards by turning the clockwork knob 12 to tighten the clockwork spring 10, the patient can drive the transmission rotating shaft 21 to rotate, the incomplete gear 22 rotates to drive the lever gear 23 to rotate, the rotating rod 231 on the lever gear 23 drives the tilting rod 24 to move upwards, so that the bite plate 32 moves downwards, and the patient can complete the mouth opening movement. After the teeth of the incomplete gear 22 complete the meshing transmission with the lever gear 23, the bite plate 32 returns to the initial position under the action of the reset torsion spring 71, the patient completes one opening and closing movement, and the above process is repeated under the driving of the clockwork spring 10 until the training times are reached or the elasticity of the clockwork spring 10 is exhausted.
When stretching training in the front and back directions of the mandible is needed, the direction change knob 54 is rotated, the toggling plate 53 is driven by the direction change rotating shaft 51 to move the incomplete gear 22 above the sliding plate 61, the incomplete gear 22 drives the sliding plate to move rightwards, the sliding plate pulls the telescopic cylinder 64 through the steel wire rope 62 to further pull the bite plate 32 to move rightwards to complete stretching of the mandible joint, and when the incomplete gear 22 is connected with the sliding plate 61, the sliding plate 61 moves leftwards to the position of the limiting block 41 under the elastic force of the return spring to complete one-time stretching movement.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, the scope of the present invention is not limited thereto, and various modifications and variations which do not require inventive efforts and which are made by those skilled in the art are within the scope of the present invention.
Claims (7)
1. A temporomandibular joint rehabilitation trainer is used for temporomandibular joint rehabilitation training and is characterized by mainly comprising a power assembly, a transmission assembly, an occlusion assembly and a shell, wherein at least one group of power assembly is arranged inside the side wall of the shell, the power assembly is in driving connection with the transmission assembly, the occlusion assembly is arranged outside an opening at the left end of the shell, and the occlusion assembly is connected with the transmission assembly;
the power assembly mainly comprises a clockwork spring, a clockwork gear, a clockwork knob, a ratchet wheel and a pawl, the clockwork knob is arranged on the outer side of the shell and is connected with a rotating shaft, the clockwork gear is sleeved on the rotating shaft, the clockwork spring is arranged inside the clockwork gear, one end of the clockwork spring is fixedly arranged on the rotating shaft, and the other end of the clockwork spring is arranged inside the clockwork gear; the ratchet wheel is fixedly arranged on the rotating shaft, the pawl is arranged on the inner wall of the shell and clamped between gear teeth of the ratchet wheel, and a pressing sheet is arranged on the inner wall of the shell through a torsion spring and pressed on the pawl;
the transmission assembly mainly comprises a transmission rotating shaft, an incomplete gear, a lever gear and a warping rod, the transmission rotating shaft is rotatably arranged in the shell and is in driving connection with the clockwork gear, at least one incomplete gear is arranged on the transmission rotating shaft and is in driving connection with the lever gear, the end part of the rotating shaft of the lever gear is rotatably arranged on the side wall of the shell, a rotating rod is arranged on the side surface of the lever gear and is arranged in a sliding groove at the right end part of the warping rod, and the left end part of the warping rod is rotatably arranged on a supporting shaft in the shell;
the interlock subassembly mainly includes layer board and snap-in plate, the snap-in plate passes through the connecting rod to be connected the left end of stick up the pole, the layer board is the umbrella-type just the layer board sets up the top of snap-in plate, the layer board pass through the bracing piece with the casing is connected.
2. The temporomandibular joint rehabilitation trainer according to claim 1, wherein the incomplete gear is movably sleeved on the transmission rotating shaft, the incomplete gear is connected with a direction changing assembly, and a stretching assembly is further arranged on the inner bottom surface of the shell;
the direction changing assembly mainly comprises a direction changing rotating shaft, a sliding rod and a shifting plate, wherein two ends of the direction changing rotating shaft are rotatably arranged on the side wall of the shell, a direction changing knob connected with the direction changing rotating shaft is arranged on the outer side of the shell, a guide groove is formed in the surface of the direction changing rotating shaft, the shifting plate is slidably arranged on the sliding rod, a guide rod arranged in the guide groove is arranged at the upper end of the shifting plate, and the lower part of the shifting plate is rotatably sleeved on a sleeve on one side of the incomplete gear;
the stretching assembly mainly comprises a sliding plate, a steel wire rope, a return spring and a telescopic cylinder, the sliding plate is slidably arranged on the bottom surface of the shell, gear teeth are arranged on the surface of the sliding plate, and when the redirection rotating shaft is rotated, the poking plate can poke the incomplete gear to the upper part of the sliding plate; the wire rope is wound on the rollers in the shell, the wire rope is connected between the left end of the sliding plate and the telescopic cylinder, the telescopic cylinder is movably sleeved at the left end of the connecting rod, the left end of the telescopic cylinder is connected with the snap-in plate, and a reset spring is arranged in the telescopic cylinder.
3. The temporomandibular joint rehabilitation trainer according to claim 1, wherein a rotary damper is provided between the transmission shaft and the side wall of the housing, a stopper is provided on the front end face of the transmission shaft, and a slide switch is provided on the outside of the housing above the stopper; the sliding switch mainly comprises a lantern ring and a brake rod, the brake rod is arranged in the lantern ring in a vertically sliding mode, a driving plate is arranged in the middle of the brake rod, and an adsorption magnet is arranged on the driving plate.
4. The temporomandibular joint rehabilitation trainer according to claim 1, wherein adjusting mechanisms are provided at both ends of the rotating shaft of the lever gear, the adjusting mechanisms are provided at the outer side of the housing, the adjusting mechanisms mainly comprise a reset torsion spring, a swivel and a connecting ring, the reset torsion spring is sleeved on the rotating shaft of the lever gear, both ends of the reset torsion spring are respectively fixed on the rotating shaft of the lever gear and the connecting ring, and the swivel is movably sleeved at the outer side of the connecting ring; the outside of casing is provided with the support ring, be provided with the screens groove on the support ring, the rotatable setting of go-between is in the support ring outside, fixedly on the side of swivel be provided with screens groove complex screens magnet.
5. The temporomandibular joint rehabilitation trainer according to claim 1, wherein the support plate is connected with the tilting section by a universal ball head, and a plurality of through holes are arranged on the support plate; the occluding plate is U-shaped, and a U-shaped groove with a downward opening is formed in the lower surface of the occluding plate.
6. The temporomandibular joint rehabilitation trainer according to claim 2, wherein a limiting block is fixedly arranged on the bottom surface of the housing at the left end of the sliding plate, an adjusting spring is connected to the left end of the sliding plate, an adjusting rod is connected to the left end of the adjusting spring, the adjusting rod is arranged on the vertical wall of the housing through threaded connection, and the left end of the adjusting rod penetrates through the vertical wall of the housing and is arranged outside the housing.
7. The temporomandibular joint rehabilitation trainer as claimed in claim 2, wherein the support bar basically includes a connecting section connected to the housing, a curved section curved downwardly, a straight section disposed above the bite plate with a bottom portion contacting an upper surface of the bite plate and a raised section curved upwardly connected to the support plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910320908.3A CN109984916B (en) | 2019-04-21 | 2019-04-21 | Temporomandibular joint rehabilitation training device |
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| CN201910320908.3A CN109984916B (en) | 2019-04-21 | 2019-04-21 | Temporomandibular joint rehabilitation training device |
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| CN109984916A CN109984916A (en) | 2019-07-09 |
| CN109984916B true CN109984916B (en) | 2021-01-12 |
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| CN110538047B (en) * | 2019-10-11 | 2024-04-09 | 南京医科大学附属口腔医院 | Special opening training device for temporomandibular joint disorder correction |
| CN113589960A (en) * | 2021-07-14 | 2021-11-02 | 李伟 | Intelligent wireless mouse |
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| US20170290727A1 (en) * | 2016-04-11 | 2017-10-12 | Elton Devin Savage | Cervical traction device and method of using same |
| CN106726351B (en) * | 2016-12-29 | 2023-04-07 | 山东威高集团医用高分子制品股份有限公司 | Temporomandibular joint training device |
| CN206896500U (en) * | 2016-12-30 | 2018-01-19 | 新疆医科大学附属肿瘤医院 | The individual chemoradiotherapy exerciser of dehiscing of controllable opening amplitude |
| WO2018154425A1 (en) * | 2017-02-22 | 2018-08-30 | Shrivastava Rahul | Physio-therapeutic device for guided mouth opening |
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