Oral appliance for improving sleep apnea

Abstract

The invention belongs to the technical field of devices for improving sleep apnea, and discloses an oral appliance for improving sleep apnea, which comprises an upper tooth socket, a lower tooth socket and a connecting seat, the upper tooth socket is in sliding connection with the other end of the connecting seat in the vertical direction through an L-shaped rod; the connecting seat is rotationally connected with a driving rod through a rotating shaft, the free end of the driving rod is rotationally connected with a connecting rod, one end of the connecting rod is rotationally connected with the L-shaped rod, and the other end of the connecting rod is rotationally connected with the cross rod; the connecting seat is provided with a limiting device which is used for limiting the rotation of the driving rod; the oral auxiliary device solves the problems that an existing oral auxiliary device is poor in correction effect, a patient cannot keep smooth breathing all the time, and the upper jaw and the lower jaw of the patient are ache.

Description

Technical Field

[0001] The present invention relates to the technical field of devices for improving sleep apnea, and in particular to an oral appliance for improving sleep apnea. Background Art

[0002] Sleep apnea is a sleep disorder in which breathing stops or shallow breathing occurs during sleep. It is divided into three main types: obstructive sleep apnea (OSA), central sleep apnea (CSA) and mixed sleep apnea. Obstructive sleep apnea (OSA) is the most common type. Obstructive sleep apnea (OSA) refers to the apnea caused by the collapse of the upper airway during sleep, resulting in intermittent hypoxia, hypercapnia and sleep structure disorders. In severe cases, hypertension, coronary heart disease, arrhythmia, cerebrovascular disease, cognitive dysfunction, diabetes and other multi-organ and multi-system damage may occur. One manifestation of upper airway collapse is that the muscles of the whole body are in a relaxed state when sleeping, especially when lying on the back, the root of the tongue, uvula or soft palate will drop backwards, thereby obstructing the airway. At present, oral assistive devices are generally used to open the mouth to help open the airway.

[0003] However, the existing oral assistive devices are complex in structure and are not conducive to patients maintaining unobstructed breathing when sleeping; in addition, opening the airway only by stretching the mouth requires stretching the mouth a large distance to achieve the desired effect, which will cause pain in the patient's upper and lower jaws and cause secondary injury to the patient. Summary of the invention

[0004] The present invention aims to provide an oral device for improving sleep apnea, which solves the problems that the existing oral auxiliary devices have poor correction effects, are not conducive to patients maintaining unobstructed breathing at all times, and cause pain in the upper and lower jaws of patients.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] An oral appliance for improving sleep apnea, comprising an upper brace, a lower brace and a connecting seat, wherein the lower brace is slidably connected to one end of the connecting seat in a horizontal direction via a cross bar, and the upper brace is slidably connected to the other end of the connecting seat in a vertical direction via an L-shaped rod; the connecting seat is rotatably connected to a driving rod via a rotating shaft, the free end of the driving rod is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to the L-shaped rod, and the other end of the connecting rod is rotatably connected to the cross bar; the connecting seat is provided with a limiting device for limiting the rotation of the driving rod.

[0007] Furthermore, the limiting device includes a limit tube and a sleeve, the limit tube is tightly connected to the connecting seat, the limit tube is slidably connected to a sliding rod, a spring is arranged in the limit tube, one end of the spring is connected to the sliding rod, and the other end of the spring is connected to the connecting seat; an internal spline is arranged in the sleeve, and an external spline engaged with the internal spline is arranged at a corresponding position of the rotating shaft; the sleeve is tightly connected to the sliding rod.

[0008] Furthermore, when no external force is applied to the sliding rod, the sleeve abuts against the connecting seat; and the limiting tube and the sleeve are arranged along the vertical direction.

[0009] Furthermore, one end of the rotating shaft away from the external spline is connected to a knob, and the knob is axially connected to a plurality of anti-slip strips along the circumference.

[0010] Furthermore, the sliding rod is provided with a limiting groove, the sleeve is connected with a matching sliding key, and the sliding key is slidably connected in the limiting groove; and the width of the limiting groove is greater than the width of the sliding key, and the distance between two adjacent teeth of the external spline is greater than the tooth width of the internal spline.

[0011] Furthermore, the upper braces and the lower braces are both arranged in an arc shape, and soft silicone support pads are arranged inside the upper braces and the lower braces.

[0012] Furthermore, the connecting seat is provided with two mutually perpendicular slide grooves, the L-shaped rod and the cross bar are both connected with slide rails, the slide rail of the L-shaped rod is slidably connected in one slide groove, and the slide rail of the cross bar is slidably connected in another slide groove; and the cross-sectional shapes of the slide groove and the slide rail are both "convex" shapes.

[0013] Furthermore, the lower brace is provided with a tongue restrictor.

[0014] Furthermore, the tongue restraining member is an arc-shaped tongue depressor, the tongue depressor is provided with a plurality of air holes, and the tongue depressor is connected to the lower braces.

[0015] Furthermore, the tongue restricting member is a suction cup, and the suction cup is connected to the lower brace via an elastic band.

[0016] The principle and beneficial effects of the technical solution are:

[0017] 1. An oral appliance for improving sleep apnea provided by the present invention comprises an upper brace, a lower brace and a connecting seat, wherein the upper brace is adapted to the upper jaw for fixing the upper jaw, and the lower brace is adapted to the upper jaw for fixing the upper jaw; the connecting seat is used to adjust the relative positions of the upper brace and the lower brace (including the distance in the vertical direction and the distance in the horizontal direction); the connecting seat is provided with a limiting device for fixing the positions of the adjusted upper brace and the lower brace, specifically, the lower brace is connected to one end of the connecting seat by sliding in the horizontal direction through a cross bar, the upper brace is connected to the other end of the connecting seat by sliding in the vertical direction through an L-shaped rod, the connecting seat is rotatably connected to a driving rod through a rotating shaft, the free end of the driving rod is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to the L-shaped rod, and the other end of the connecting rod is rotatably connected to the cross bar; the rotating shaft is rotated, the rotating shaft drives the driving rod to swing, the driving rod drives the connecting rod to rotate, the connecting rod drives the cross bar to slide left and right in the horizontal direction, the cross bar drives the lower brace to move left and right, and the horizontal distance between the upper brace and the lower brace is adjusted. , thereby stretching the patient's mandible forward and adjusting the appropriate stretching distance; at the same time, the connecting rod drives the L-shaped rod to slide up and down in the vertical direction, and the L-shaped rod drives the upper braces to move up and down, adjusting the distance between the upper braces and the lower braces in the vertical direction, thereby adjusting the degree of opening of the patient's upper and lower jaws; the limiting device limits the rotation of the rotating shaft to fix the upper and lower braces in the adjusted position; by opening the patient's upper and lower jaws and stretching the patient's lower jaw forward, it can effectively prevent the root of the tongue, uvula or soft palate from falling backward, which is beneficial for the patient to keep breathing unobstructed when going to bed, and the desired effect can be achieved by slightly opening the mouth. Slightly opening the mouth can also ensure that the air in the mouth is unobstructed during sleep, effectively relieving the patient's upper and lower jaw pain and avoiding secondary injury to the patient; in addition, the limiting device can fix the position of the upper and lower braces, which can not only ensure air circulation in the mouth, but also keep the lower jaw forward, always ensure that the airway is in an open state, and avoid the loosening of the upper and lower braces during sleep, resulting in accidents.

[0018] 2. The present invention provides an oral device for improving sleep apnea, wherein the limiting device comprises a limiting tube and a sleeve, wherein an internal spline is arranged in the sleeve, and an external spline meshing with the internal spline is arranged at a corresponding position of the rotating shaft, and the rotation of the rotating shaft can be limited by the meshing of the internal spline and the external spline; through the limiting tube, the sliding rod and the spring, the sliding rod can only slide along the axial direction of the rotating shaft, and the rotating shaft can be fixed by the resilience of the spring, so the operation is simple and the fixing effect is good; specifically, when the rotating shaft needs to be rotated, the sliding rod is pulled outward, the sliding rod drives the sleeve to move outward, and the spring in the limiting tube is stretched, and the sleeve moves outward until the external spline is separated from the internal spline, so that the rotating shaft can be rotated; after the upper and lower braces are adjusted to suitable positions, put When the slide bar is opened, the rebound force of the spring drives the slide bar to slide in the direction close to the connecting seat, so that the inner spline and the outer spline are meshed. The rebound force of the spring makes the inner spline and the outer spline tightly meshed, and makes the sleeve tightly abut against the connecting seat, so that the rotating shaft can be fixed by the inner and outer splines, and the friction between the sleeve and the connecting seat further limits the rotation of the rotating shaft, thereby increasing the fixing effect; the limit tube and the sleeve are arranged in the vertical direction, and the slide bar can be connected to the sleeve by the U-shaped rod. When pushing the slide bar open, only the thumb and index finger of the left hand need to hold the connecting seat, and the middle finger can push the U-shaped rod outward, which is easy to operate; a knob is connected to the end of the rotating shaft away from the spline, and the knob is connected to a plurality of anti-slip strips along the axial direction to avoid slipping during rotation.

[0019] 3. The present invention provides an oral device for improving sleep apnea, wherein the sliding rod is provided with a limiting groove, the sleeve is connected with a matching sliding key, the sliding key is slidably connected in the limiting groove, and the width of the limiting groove is greater than the width of the sliding key, and the distance between two adjacent teeth of the external spline is greater than the tooth width of the internal spline. In this way, in actual use, the gap between the limiting groove and the sliding key, and the spacing between the internal key and the external spline teeth are reasonably set, which can leave a certain rotation margin for the rotating shaft after the external spline is meshed with the internal spline, thereby leaving a certain margin for the horizontal and vertical movement of the upper braces and the lower braces, so that the patient can slightly move the upper and lower jaws during sleep, further increasing the patient's comfort.

[0020] 4. The present invention provides an oral appliance for improving sleep apnea, wherein the upper and lower braces are both arranged in an arc shape to adapt to the structure of the upper jaw and the lower jaw, to conform to ergonomics, and to increase comfort of use; the connecting seat is provided with two mutually perpendicular slide grooves, the L-shaped rod and the cross rod are both connected to the slide rails, and the slide groove and the slide rail are both "convex" shaped, which increases the smoothness of sliding, and can prevent the cross rod and the L-shaped rod from detaching from the slide groove, thereby increasing the structural stability.

[0021] 5. The present invention provides an oral device for improving sleep apnea, wherein the lower braces are provided with a tongue restraint, which can further prevent the tongue root from falling backwards by pressing down or stretching forwards, further helping to open the airway and ensure smooth breathing during sleep. Specifically, the tongue restraint is a suction cup, which is connected to the lower braces by an elastic band, and can suck the patient's tongue tip, further preventing the tongue root from blocking the airway, and is connected by an elastic band, which can leave a range for the patient's tongue to move without hindering the opening of the airway, so as to increase the patient's comfort; the tongue restraint is an arc-shaped tongue depressor, which is connected to the lower braces, and is provided with a plurality of air holes, which can press down the tongue by the tongue depressor, further relieving the tongue root from falling backwards, and the air holes are convenient for ventilation and also conducive to the flow of saliva; soft silicone support pads are provided in the grooves of the upper and lower braces to avoid damaging the patient's upper and lower jaws, so as to increase the patient's comfort in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of an oral device for improving sleep apnea according to embodiment 1 of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of an oral device for improving sleep apnea according to embodiment 1 of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 The structure of an oral device for improving sleep apnea according to embodiment 1 of the present invention is shown in FIG. Figure 3 ;

[0025] Figure 4 A top view of an oral device for improving sleep apnea according to embodiment 1 of the present invention;

[0026] Figure 5 for Figure 4 Partial cross-sectional view of AA;

[0027] Figure 6 for Figure 4 A partial cross-sectional view of the middle BB;

[0028] Figure 7 A side view of an oral device for improving sleep apnea according to embodiment 1 of the present invention;

[0029] Figure 8 for Figure 7 Cross-sectional view of CC;

[0030] Fig. 9 This is a schematic structural diagram of an oral appliance for improving sleep apnea according to Example 1 of the present invention.

[0031] The names of the corresponding marks in the accompanying drawings are:

[0032] 1. Upper braces; 2. Lower braces; 3. Connecting seat; 4. L-shaped rod; 5. Cross bar; 6. Rotating shaft; 7. Driving rod; 8. Connecting rod; 9. Knob; 10. Anti-slip strip; 11. Slide rail; 12. Slide groove; 13. Elastic band; 14. Suction cup; 15. Tongue depressor; 16. Air vent; 17. Sleeve; 18. Limiting tube; 19. U-shaped rod; 20. Slide rod; 21. Spring; 22. Sliding key; 23. External spline; 24. Internal spline; 25. Limiting groove. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0034] like Figures 1 to 9 As shown, an oral appliance for improving sleep apnea comprises an upper brace 1, a lower brace 2 and an L-shaped connecting seat 3, the upper brace 1 and the lower brace 2 are both arranged in an arc shape, and soft silicone support pads are arranged in the grooves of the upper brace 1 and the lower brace 2; the lower brace 2 is slidably connected to one end of the connecting seat 3 in the horizontal direction through a cross bar 5, and the upper brace 1 is slidably connected to the other end of the connecting seat 3 in the vertical direction through an L-shaped rod 4; specifically, the connecting seat 3 is provided with two mutually perpendicular slide grooves 12, one slide groove 12 extends in the vertical direction, and the other slide groove 12 extends in the horizontal direction; the L-shaped rod 4 and the cross bar 5 are both connected with a slide rail 11, the slide rail 11 of the L-shaped rod 4 is slidably connected in the vertical slide groove 12, and the slide rail 11 of the cross bar 5 is slidably connected in the horizontal slide groove 12, and the cross-sectional shapes of the slide groove 12 and the slide rail 11 are both "convex" shaped.

[0035] The connecting seat 3 is rotatably connected to the driving rod 7 through the rotating shaft 6, that is, the rotating shaft 6 and the connecting seat 3 are rotatably connected through the bearing, the rotating shaft 6 and the driving rod 7 are tightly connected, and the free end of the driving rod 7 is rotatably connected to the connecting rod 8 through the rotating shaft pin, and one end of the connecting rod 8 is rotatably connected to the L-shaped rod 4, and the other end of the connecting rod 8 is rotatably connected to the cross bar 5 through the rotating shaft pin; the connecting seat 3 is provided with a limiting device for limiting the rotation of the driving rod 7; specifically, the limiting device includes a limiting tube 18 and a sleeve 17, the limiting tube 18 is tightly connected to the connecting seat 3, the limiting tube 18 is slidably connected to the sliding rod 20, and the sliding rod 20 is provided with a limiting groove along the axial direction, and the corresponding position in the limiting tube 18 The sleeve 17 is connected to the connecting seat 3 along the axial direction with a sliding key 22, which is slidably connected to the limiting groove; and a spring 21 is arranged in the limiting tube 18, which is located between the sliding rod 20 and the connecting seat 3, one end of the spring 21 is connected to the sliding rod 20, and the other end of the spring 21 is connected to the connecting seat 3; when no external force is applied to the sliding rod 20, under the action of the rebound force of the spring 21, the sleeve 17 abuts against the connecting seat 3; the limiting tube 18 and the sleeve 17 are arranged along the vertical direction; an internal spline 24 is arranged in the sleeve 17, and an external spline 23 meshing with the internal spline 24 is arranged at the corresponding position of the rotating shaft 6; the sleeve 17 and the sliding rod 20 are fastened and connected by a U-shaped rod 19. And a knob 9 is connected to the end of the rotating shaft 6 away from the external spline 23, and the knob 9 is connected to a plurality of anti-slip strips 10 along the circumferential direction. In addition, the slide rod 20 is provided with a limit groove, and the sleeve 17 is connected with a matching sliding key 22, and the sliding key 22 is slidably connected in the limit groove 25; and the width of the limit groove 25 is greater than the width of the sliding key 22, and the distance between two adjacent teeth of the internal spline 24 is greater than the tooth width of the external spline 23.

[0036] The lower brace 2 is provided with a tongue restraining member, which is a suction cup 14 , and the suction cup 14 is connected to the lower brace 2 via an elastic band 13 .

[0037] Example 2

[0038] The difference between this embodiment and the first embodiment is that the tongue restricting member is an arc-shaped tongue depressor 15, the tongue depressor 15 is provided with a plurality of air holes 16, and the tongue depressor 15 is connected to the lower brace 2. The other contents are the same as those in the embodiment and will not be repeated here.

[0039] The specific implementation process is as follows:

[0040] When using the oral appliance, the slide bar 20 is pulled outward to further stretch the spring 21, and the slide bar 20 drives the sleeve 17 to move outward, so that the inner spline 24 is separated from the outer spline 23, and the rotating shaft 6 is rotated clockwise. The rotating shaft 6 drives the driving rod 7 to swing clockwise, and the driving rod 7 drives the connecting rod 8 to rotate clockwise. One end of the connecting rod 8 drives the cross bar 5 to slide to the left in the horizontal direction, and also drives the L-shaped rod 4 to slide upward in the vertical direction, thereby driving the lower brace 2 to move to the left in the horizontal direction, so as to move the lower brace 2 forward relative to the upper brace 1, and move the upper brace 1 upward, and adjust the horizontal and vertical distances between the upper brace 1 and the lower brace 2. If the distance needs to be reduced, rotate the rotating shaft 6 counterclockwise; put the upper brace 1 on the patient's upper jaw, and put the lower brace 2 on the patient's lower jaw. After putting them on, the distance can be adjusted according to the situation, and the tongue depressor 15 can be pressed on the tongue, or the suction cup 14 can be sucked on the tip of the tongue.

[0041] In summary, the present invention provides an oral appliance for improving sleep apnea, wherein the upper braces 1 are used to fix the upper jaw, and the lower braces 2 are used to fix the upper jaw; the connecting seat 3 is used to adjust the relative positions of the upper braces 1 and the lower braces 2 (including the vertical distance and the horizontal distance); the limiting device is used to fix the positions of the adjusted upper braces 1 and the lower braces 2, and by opening the upper and lower jaws of the patient and stretching the lower jaw of the patient forward, the root of the tongue, the uvula or the soft palate can be effectively prevented from falling backward, which is beneficial for the patient to keep breathing unobstructed when going to bed, and the desired effect can be achieved by slightly opening the mouth, and the slightly open mouth can also ensure that the air in the mouth is unobstructed during sleep, effectively relieving the patient's upper and lower jaw soreness and avoiding secondary injury to the patient; in addition, the limiting device can fix the positions of the upper braces 1 and the lower braces 2, which can not only ensure the air circulation in the mouth, but also keep the lower jaw moved forward, and always ensure that the airway is in an open state, so as to avoid the loosening of the upper braces 1 and the lower braces 2 during sleep, which may cause accidents.

[0042] The engagement of the inner spline 24 and the outer spline 23 can limit the rotation of the rotating shaft 6; the limiting tube 18, the slide bar 20 and the spring 21 can fix the rotating shaft 6 with the resilience of the spring 21, which is simple to operate and has a good fixing effect; after the upper and lower braces 1 and 2 are adjusted to suitable positions, the slide bar 20 is released, and the resilience of the spring 21 drives the slide bar 20 to slide in the direction close to the connecting seat 3, so that the inner spline 24 and the outer spline 23 are engaged, and the resilience of the spring 21 makes the inner spline 24 and the outer spline 23 tightly engaged, and makes the sleeve 17 tightly abut against the connecting seat 3, so that the rotating shaft 6 can be fixed by the inner and outer splines 23, and the friction between the sleeve 17 and the connecting seat 3 further limits the rotation of the rotating shaft 6, thereby increasing the fixing effect;

[0043] The upper and lower braces 1 and 2 are both arc-shaped to adapt to the structure of the upper and lower jaws, conform to ergonomics, and increase comfort; the connecting seat 3 is provided with two mutually perpendicular slide grooves 12, and the L-shaped rod 4 and the cross bar 5 are both connected to the slide rail 11, and the slide groove 12 and the slide rail 11 are both "convex" shaped, which increases the smoothness of sliding and can prevent the cross bar 5 and the L-shaped rod 4 from detaching from the slide groove 12, thereby increasing the stability of the structure. The lower brace 2 is provided with a tongue restriction, which presses the tongue downward or stretches it forward, which can further prevent the root of the tongue from falling backward, further help open the airway, and ensure smooth breathing during sleep.

[0044] By reasonably setting the gap between the limit groove 25 and the sliding key 22, and the tooth spacing between the internal key and the external spline 23, a certain rotation margin can be reserved for the rotating shaft 6 after the external spline 23 is meshed with the internal spline 24, thereby leaving a certain margin for the horizontal and vertical movement of the upper brace 1 and the lower brace, so that the patient can slightly move the upper and lower jaws during sleep, further increasing the patient's comfort.

[0045] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An oral device for improving sleep apnea, characterized in that: The invention comprises an upper brace (1), a lower brace (2) and a connecting seat (3); the lower brace (2) is connected to one end of the connecting seat (3) in a sliding manner in the horizontal direction via a cross bar (5); the upper brace (1) is connected to the other end of the connecting seat (3) in a sliding manner in the vertical direction via an L-shaped rod (4); the connecting seat (3) is connected to a driving rod (7) in a rotational manner via a rotating shaft (6); the free end of the driving rod (7) is connected to a connecting rod (8) in a rotational manner, and one end of the connecting rod (8) is connected to the L-shaped rod (4) in a rotational manner, and the other end of the connecting rod (8) is connected to the cross bar (5) in a rotational manner; the connecting seat (3) is provided with a limiting device for limiting the rotation of the driving rod (7).

2. The oral appliance for improving sleep apnea according to claim 1, characterized in that: The limiting device comprises a limiting tube (18) and a sleeve (17); the limiting tube (18) is tightly connected to the connecting seat (3); the limiting tube (18) is slidably connected to a sliding rod (20); a spring (21) is arranged inside the limiting tube (18); one end of the spring (21) is connected to the sliding rod (20), and the other end of the spring (21) is connected to the connecting seat (3); an internal spline (24) is arranged inside the sleeve (17); an external spline (23) meshing with the internal spline (24) is arranged at a corresponding position of the rotating shaft (6); the sleeve (17) is tightly connected to the sliding rod (20).

3. The oral appliance for improving sleep apnea according to claim 2, characterized in that: When no external force is applied to the sliding rod (20), the sleeve (17) abuts against the connecting seat (3); the limiting tube (18) and the sleeve (17) are arranged in a vertical direction.

4. The oral device for improving sleep apnea according to claim 2, characterized in that: One end of the rotating shaft (6) away from the external spline (23) is connected to a knob (9), and the knob (9) is connected to a plurality of anti-slip strips (10) along the circumferential direction.

5. The oral appliance for improving sleep apnea according to claim 2, characterized in that: The slide rod (20) is provided with a limiting groove (25), and the sleeve (17) is connected with a matching sliding key (22), and the sliding key (22) is slidably connected in the limiting groove (25); and the width of the limiting groove (25) is greater than the width of the sliding key (22), and the distance between two adjacent teeth of the internal spline (24) is greater than the tooth width of the external spline (23).

6. The oral appliance for improving sleep apnea according to claim 1, characterized in that: The upper brace (1) and the lower brace (2) are both arranged in an arc shape, and soft silica gel support pads are arranged inside the upper brace (1) and the lower brace (2).

7. The oral appliance for improving sleep apnea according to claim 1, characterized in that: The connecting seat (3) is provided with two mutually perpendicular slide grooves (12); the L-shaped rod (4) and the cross rod (5) are both connected with slide rails (11); the slide rail (11) of the L-shaped rod (4) is slidably connected in one slide groove (12), and the slide rail (11) of the cross rod (5) is slidably connected in the other slide groove (12); and the cross-sectional shapes of the slide groove (12) and the slide rail (11) are both "convex" shapes.

8. The oral appliance for improving sleep apnea according to claim 1, characterized in that: The lower brace (2) is provided with a tongue restricting member.

9. The oral appliance for improving sleep apnea according to claim 8, characterized in that: The tongue restricting member is an arc-shaped tongue depressor (15), the tongue depressor (15) is provided with a plurality of air holes (16), and the tongue depressor (15) is connected to the lower brace (2).

10. The oral appliance for improving sleep apnea according to claim 8, characterized in that: The tongue restricting member is a suction cup (14), and the suction cup (14) is connected to the lower brace (2) via an elastic band (13).

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