Tongue muscle rehabilitation exercise device
By designing a tongue muscle rehabilitation exercise device including a power motor driven tongue sleeve and massage component, the problem of difficulty in performing tongue elongation and tongue tip massage in the prior art is solved, and a comprehensive rehabilitation exercise of the tongue and tongue tip is achieved.
Patent Information
- Application Number
- CN202411749237.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-03-07
AI Technical Summary
It is difficult to perform effective massage and rehabilitation on the tip of the tongue during rehabilitation exercises of tongue elongation exercises.
A tongue muscle rehabilitation exercise device is designed, including a tongue sleeve and massage parts driven by a powered motor. Through the adjustment parts, the tongue sleeve can be reciprocated back and forth to adapt to the tongue lengthening exercise of different lengths; at the same time, the massage parts drive the arc massage sleeve and massage ball to massage the tip of the tongue to recover.
It realizes effective stretching and rehabilitation exercises on the tongue, and massage the tip of the tongue to rehabilitate, improving the efficiency and comfort of the patients' tongue rehabilitation training.
Smart Images

Figure CN119564461A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of tongue muscle rehabilitation training and relates to a tongue muscle rehabilitation training device. Background Art
[0002] Dysphagia refers to the process in which food cannot be safely and effectively transported to the stomach due to damage to the structure and / or function of organs such as the mandible, lips, tongue, soft palate, throat, and esophagus. With age, the elderly are prone to degenerative changes such as reduced muscle tissue and decreased elasticity of connective tissue, decreased swallowing speed, reduced chewing function, decreased saliva secretion, atrophy of the oral mucosa, and weakened nerve endings reflex. Coupled with diseases, drugs, food properties, mental and psychological factors, dysphagia is more likely to occur. Studies have shown that the incidence of dysphagia in the elderly population over 65 years old is 30% to 40%. Dysphagia can lead to adverse outcomes such as malnutrition, dehydration, aspiration, choking, and suffocation in the elderly, so rehabilitation training of reciprocating stretching of the tongue muscles is required;
[0003] The Chinese patent with the authorization number CN117481960B discloses a swallowing disorder rehabilitation training device for the elderly, including a cylinder, a connecting tube is provided at the front end of the cylinder, a massage head is detachably connected to the head end of the connecting tube, the tail end of the connecting tube extends into the interior of the cylinder, a control panel is provided on the outer wall of the cylinder, a driving mechanism, a jet mechanism and a battery are provided inside the cylinder, the driving mechanism can drive the connecting tube to reciprocate along the axial direction, the jet mechanism can spray pulsed airflow through the connecting tube, the control panel can control the operation of the driving mechanism and the jet mechanism, and the control panel, the driving mechanism and the jet mechanism are all electrically connected to the battery. The device integrates multiple functions in one, is simple and convenient to operate, is suitable for clinical nursing staff to operate and patients to use at home, and is suitable for promotion and application; however, there is a problem in the technical solution that it is not convenient to perform rehabilitation exercises for the patient's tongue lengthening exercise while being able to perform rehabilitation massage on the patient's tongue tip; therefore, a tongue muscle rehabilitation exercise device is urgently needed Summary of the invention
[0004] In view of the above problems, the present invention proposes a tongue muscle rehabilitation exercise device, which effectively solves the problem in the prior art that it is inconvenient to perform rehabilitation exercises for lengthening the patient's tongue while being able to perform rehabilitation massage on the patient's tongue tip.
[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:
[0006] A tongue muscle rehabilitation exercise device comprises a hollow installation box, a support plate is fixedly arranged on the upper side of the bottom of the installation box, the upper side of the support plate is rotatably connected to a driving shaft through a bearing seat, the right side of the driving shaft is connected to a connecting shaft through a bevel gear set, the lower side of the connecting shaft is connected to a power motor, the lower side of the power motor is fixedly connected to the bottom of the installation box, a turntable is fixedly connected to the left side of the driving shaft, a placement box is fixedly arranged on the left side of the turntable, an adjusting component is connected in the placement box, a long rod is hinged on the left side of the adjusting component, a reciprocating component is hinged on the upper side of the long rod, the upper side of the reciprocating component is connected to the installation box, a connecting sleeve is fixedly connected to the front side of the reciprocating component, a hollow tongue sleeve is fixedly connected to the front side of the connecting sleeve, a negative pressure tube is fixedly connected to the rear side of the connecting sleeve, and a negative pressure device is connected to the lower side of the negative pressure tube.
[0007] Preferably, the reciprocating component includes a slide plate hinged to the front side of the long rod, two parallel cross bars are arranged on the upper side of the inner wall of the installation box, both ends of the cross bars are fixedly connected with fixed plates, the upper side of the fixed plate is fixedly connected to the upper end of the inner wall of the installation box, and the left and right sides of the slide plate are provided with insertion holes, the cross bars are inserted into the insertion holes and the slide plate can slide freely along the front and rear sides of the cross bars, a telescopic rod is fixedly arranged on the middle side of the front end surface of the slide plate, the telescopic rod is slidably connected to the installation box, and the front end of the telescopic rod is fixedly connected to the connecting sleeve, a reciprocating rack is fixedly connected to the right side of the slide plate, the reciprocating rack is meshingly connected to a massage component, an arc-shaped massage sleeve is fixedly connected to the front side of the massage component, and a plurality of massage balls are ball-hinged in the arc-shaped massage sleeve.
[0008] Preferably, the massage component includes a transmission gear meshing with the reciprocating rack, the transmission gear is fixedly connected to the first transmission shaft, a hanging plate is fixedly connected to the upper side of the inner wall of the installation box, the first transmission shaft is connected to the second transmission shaft through a bevel gear set, one side of the second transmission shaft is rotatably connected to the hanging plate, and the other side of the second transmission shaft is rotatably connected to the installation box, the second transmission shaft is connected to the third transmission shaft through a belt and a pulley, the third transmission shaft is rotatably connected to the installation box, a spline rod is fixedly provided on the front end surface of the third transmission shaft, and a fourth transmission shaft is inserted into the front side of the spline rod, the connecting sleeve is fixedly connected to a sleeve, the fourth transmission shaft is penetrated through the inner side of the sleeve and rotates freely in the sleeve, and the fourth transmission shaft is fixedly connected to the arc-shaped massage sleeve.
[0009] Preferably, the adjusting component includes an adjusting screw rotatably connected to the placement box, a moving block is threadedly connected to the middle side of the adjusting screw, the moving block slides freely along the upper and lower sides of the inner wall of the placement box, a plug rod is fixedly connected to the outer side of the moving block, the left side of the plug rod is hinged to the long rod, a short shaft is fixedly connected to the upper end of the adjusting screw, the short shaft is rotatably connected to the placement box, an adjusting rod is connected to the upper side of the short shaft through a bevel gear set, an opening is opened on the middle side of the driving shaft, the adjusting rod is rotatably connected to the opening, the right side of the adjusting rod is rotatably connected to the placement box, and a handle is fixedly connected to the right end of the adjusting rod.
[0010] Preferably, a negative pressure gauge is fixedly connected to the upper side of the negative pressure pipe, and the right side of the negative pressure gauge is fixedly connected to the installation box.
[0011] Preferably, a through hole is opened in the middle side of the reciprocating rack, an auxiliary rod is passed through the through hole, and both ends of the auxiliary rod are fixedly connected to the installation box.
[0012] Preferably, the tongue cover and the arc-shaped massage cover are both made of silicone.
[0013] Preferably, a lifting rod is fixedly provided on the upper side of the installation box.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The medical staff inserts the tongue cover through the patient's tongue tip into the inside of the tongue, and then adjusts the adjustment component to change the stroke of the tongue cover to do back and forth reciprocating motion, so as to meet the patient's need for tongue rehabilitation exercise with appropriate extension length.
[0016] 2. The present invention drives the driving shaft to work through a power motor, so that the turntable allows the tongue cover to reciprocate in the front and back directions through a reciprocating component, thereby facilitating the tongue elongation rehabilitation treatment for the patient.
[0017] 3. The present invention drives the arc-shaped massage sleeve to reciprocate through the massage component, so that multiple massage balls can massage and rehabilitate the tongue tip of the patient.
[0018] 4. According to the need of exercising the patient's tongue to reciprocate and stretch the length, the present invention adjusts the slide plate to a suitable position away from the axis of the turntable, so that the turntable drives the slide plate to make an eccentric motion, thereby adjusting the distance of the slide plate's reciprocating motion along the front and back sides of the cross bar, so as to achieve the purpose of the slide plate driving the tongue cover to make a reciprocating motion on the front and back sides, thereby improving the efficiency of the patient's tongue rehabilitation exercise. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the axonometric structure of the present invention.
[0020] Figure 2 It is a partial cross-sectional view of the installation box of the present invention.
[0021] Figure 3 It is a schematic diagram of the structure of the reciprocating component of the present invention.
[0022] Figure 4 It is a schematic diagram of the turntable structure of the present invention.
[0023] Figure 5 It is a schematic diagram of the structure of the regulating component of the present invention.
[0024] Figure 6 It is a partial cross-sectional view of the tongue cover of the present invention.
[0025] Figure 7 For the present invention Figure 1 Schematic diagram of the enlarged structure of the middle J part.
[0026] In the figure: 1. installation box; 2. lifting rod; 3. handle; 4. negative pressure tube; 5. tongue cover; 6. support plate; 7. connecting sleeve; 8. adjusting rod; 9. power motor; 10. connecting shaft; 11. turntable; 12. driving shaft; 13. negative pressure equipment; 14. negative pressure gauge; 15. telescopic rod; 16. second transmission shaft; 17. cross bar; 18. slide plate; 19. fixed plate; 20. long rod; 21. reciprocating rack; 22. third transmission shaft; 23. spline rod; 24. transmission gear; 25. first transmission shaft; 26. hanging plate; 27. short shaft; 28. installation box; 29. moving block; 30. plug rod; 31. adjusting screw; 32. sleeve; 33. fourth transmission shaft; 34. arc massage sleeve; 35. massage ball; 36. auxiliary rod. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] See also Figure 1-7 The present invention provides a technical solution: a tongue muscle rehabilitation exercise device, comprising a hollow installation box 1, a support plate 6 is fixedly arranged on the upper side of the bottom of the installation box 1, a driving shaft 12 is rotatably connected to the upper side of the support plate 6 through a bearing seat, a connecting shaft 10 is connected to the right side of the driving shaft 12 through a bevel gear set, a power motor 9 is connected to the lower side of the connecting shaft 10, and the lower side of the power motor 9 is fixedly connected to the bottom of the installation box 1, a turntable 11 is fixedly connected to the left side of the driving shaft 12, a placement box 28 is fixedly arranged on the left side of the turntable 11, an adjusting component is connected in the placement box 28, a long rod 20 is hinged on the left side of the adjusting component, a reciprocating component is hinged on the upper side of the long rod 20, the upper side of the reciprocating component is connected to the installation box 1, a connecting sleeve 7 is fixedly connected to the front side of the reciprocating component, a hollow tongue sleeve 5 is fixedly connected to the front side of the connecting sleeve 7, a negative pressure pipe 4 is fixedly connected to the rear side of the connecting sleeve 7, and a negative pressure device 13 is connected to the lower side of the negative pressure pipe 4.
[0029] First, the patient opens his mouth, and the medical staff inserts the tongue cover 5 into the tongue through the patient's tongue tip, and then turns on the negative pressure device 13. The inner wall of the tongue cover 5 is formed into a negative pressure state through the negative pressure tube 4, so that the patient's tongue is attracted and fixed in the tongue cover 5. According to the needs of the patient's tongue extension rehabilitation exercise, the adjustment component is adjusted to adjust the stroke of the reciprocating component movement, thereby changing the stroke of the tongue cover 5 to do reciprocating motion back and forth, and then the power motor 9 is turned on. The power motor 9 drives the driving shaft 12 to rotate, and the driving shaft 12 drives the turntable 11 to rotate, and the reciprocating component drives the tongue cover 5 to do reciprocating motion in the front and back directions, so as to facilitate the extension rehabilitation treatment of the patient's tongue; the technology of the negative pressure equipment here is very mature in the market, and no excessive overview is given here.
[0030] The reciprocating component includes a slide plate 18 hinged to the front side of the long rod 20, two parallel cross bars 17 are arranged on the upper side of the inner wall of the installation box 1, both ends of the cross bars 17 are fixedly connected with fixed plates 19, the upper side of the fixed plate 19 is fixedly connected to the upper end of the inner wall of the installation box 1, and the left and right sides of the slide plate 18 are provided with plug holes, the cross bars 17 are inserted into the plug holes and the slide plate 18 can slide freely along the front and rear sides of the cross bars 17, a telescopic rod 15 is fixedly arranged on the middle side of the front end surface of the slide plate 18, the telescopic rod 15 is slidably connected to the installation box 1, and the front end of the telescopic rod 15 is fixedly connected to the connecting sleeve 7, a reciprocating rack 21 is fixedly connected to the right side of the slide plate 18, the reciprocating rack 21 is meshedly connected with a massage component, an arc-shaped massage sleeve 34 is fixedly connected to the front side of the massage component, and a plurality of massage balls are hinged in the ball of the arc-shaped massage sleeve 34 35, the long rod 20 is driven to move by the turntable 11, and the long rod 20 drives the slide plate 18 to reciprocate along the front and rear direction of the cross bar 17, and the slide plate 18 drives the telescopic rod 15 to reciprocate front and rear, thereby making the telescopic rod 15 connecting sleeve 7 to reciprocate front and rear, thereby driving the tongue sleeve 5 to reciprocate front and rear, which is convenient for the patient's tongue to be reciprocated and extended for rehabilitation exercise, the slide plate 18 drives the reciprocating rack 21 to reciprocate front and rear, and drives the arc-shaped massage sleeve 34 to reciprocate through the massage component, thereby driving multiple massage balls 35 to massage the patient's tongue tip for rehabilitation exercise; the arc-shaped massage sleeve 34 is ball-hinged with multiple massage balls 35, and the arc-shaped massage sleeve 34 is provided with multiple spherical grooves, and the massage balls 35 are in the spherical grooves and roll in the spherical grooves.
[0031] The massage component includes a transmission gear 24 meshing with the reciprocating rack 21, the transmission gear 24 is fixedly connected to the first transmission shaft 25, the upper side of the inner wall of the installation box 1 is fixedly connected to the hanging plate 26, the first transmission shaft 25 is connected to the second transmission shaft 16 through a bevel gear set, one side of the second transmission shaft 16 is rotatably connected to the hanging plate 26, and the other side of the second transmission shaft 16 is rotatably connected to the installation box 1, the second transmission shaft 16 is connected to the third transmission shaft 22 through a belt and a pulley, the third transmission shaft 22 is rotatably connected to the installation box 1, the front end surface of the third transmission shaft 22 is fixedly provided with a spline rod 23, the front side of the spline rod 23 is plugged with a fourth transmission shaft 33, the connecting sleeve 7 is fixedly connected with a sleeve 32, and the fourth transmission The shaft 33 is passed through the inner side of the sleeve 32 and rotates freely in the sleeve 32. The fourth transmission shaft 33 is fixedly connected to the arc-shaped massage sleeve 34. The reciprocating rack 21 is driven to make reciprocating motion in the front-rear direction through the slide plate 18. The reciprocating rack 21 drives the transmission gear 24 to make reciprocating rotation. The transmission gear 24 drives the second transmission shaft 16 to make reciprocating rotation through the first transmission shaft 25. The second transmission shaft 16 drives the third transmission shaft 22 to rotate through the belt and the pulley. The third transmission shaft 22 drives the spline rod 23 to reciprocate. The spline rod 23 drives the fourth transmission shaft 33 to reciprocate. The fourth transmission shaft 33 drives the arc-shaped massage sleeve 34 to reciprocate, thereby performing massage rehabilitation exercises on the patient's tongue tip.
[0032] The adjusting component includes an adjusting screw 31 rotatably connected to the placement box 28, a moving block 29 is threadedly connected to the middle side of the adjusting screw 31, and the moving block 29 slides freely along the upper and lower sides of the inner wall of the placement box 28, a plug rod 30 is fixedly connected to the outer side of the moving block 29, and the left side of the plug rod 30 is hinged to the long rod 20, and the upper end of the adjusting screw 31 is fixedly connected to the short shaft 27, and the short shaft 27 is rotatably connected to the placement box 28. The upper side of the short shaft 27 is connected to the adjusting rod 8 through a bevel gear set, an opening is opened on the middle side of the driving shaft 12, and the adjusting rod 8 is rotatably connected to the opening, the right side of the adjusting rod 8 is rotatably connected to the placement box 28, and the right end of the adjusting rod 8 is fixedly connected to the handle 3. By rotating the handle 3, the handle 3 drives the adjusting rod 8 to rotate, and the adjusting rod 8 drives the short shaft 27 to rotate through the bevel gear set, so that the short shaft 27 drives the adjusting screw 31 to rotate, and the adjusting screw 31 mobilizes the movable plate to move freely in the upper and lower directions, so as to adjust the slide plate 18 to a suitable position from the axis of the turntable 11 according to the exercise of the reciprocating extension length of the patient's tongue, and then the turntable 11 is rotated to drive the slide plate 18 to do eccentric movement, and drive the long rod 20 to move, so as to adjust the distance of the slide plate 18 to reciprocate along the front and back sides of the cross bar 17, and drive the tongue cover 5 to do reciprocating movement front and back through the slide plate 18, so as to improve the efficiency of the patient's tongue rehabilitation exercise.
[0033] The upper side of the negative pressure tube 4 is fixedly connected with a negative pressure gauge 14 , and the right side of the negative pressure gauge 14 is fixedly connected to the installation box 1 . The model of the negative pressure gauge 14 is MIK-300, and it is used to detect the pressure value in the negative pressure tube 4 .
[0034] A through hole is opened in the middle side of the reciprocating rack 21, and an auxiliary rod 36 is passed through the through hole. Both ends of the auxiliary rod 36 are fixedly connected to the installation box 1. The auxiliary rod 36 here has a supporting function, so that the reciprocating rack 21 can slide freely along the front and rear sides of the auxiliary rod 36, thereby improving the stability of the reciprocating rack 21 during movement.
[0035] The tongue cover 5 and the arc-shaped massage cover 34 are both made of silicone material, which is beneficial to protecting the patient's tongue and also improves the patient's comfort when using the device.
[0036] A lifting rod 2 is fixedly provided on the upper side of the installation box 1, and the lifting rod 2 is used to facilitate the movement of the position of the device.
[0037] When the present invention is used, the patient first opens his mouth, and the medical staff inserts the tongue cover 5 into the tongue through the patient's tongue tip position, and then turns on the negative pressure device 13, so that the inner wall of the tongue cover 5 forms a negative pressure state through the negative pressure tube 4, thereby attracting and fixing the patient's tongue in the tongue cover 5, and according to the need of the patient's tongue to do length extension rehabilitation exercises, the adjustment component is adjusted to adjust the stroke of the reciprocating component movement, thereby changing the stroke of the tongue cover 5 to do reciprocating motion back and forth, and then the power motor 9 is turned on, the power motor 9 drives the driving shaft 12 to rotate, the driving shaft 12 drives the turntable 11 to rotate, and the reciprocating component drives the tongue cover 5 to do reciprocating motion in the front and back directions, thereby facilitating the lengthening rehabilitation treatment of the patient's tongue.
[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A tongue muscle rehabilitation training device, characterized in that: It includes a hollow installation box, a support plate is fixedly provided on the upper side of the bottom of the installation box, the upper side of the support plate is rotatably connected to a driving shaft through a bearing seat, the right side of the driving shaft is connected to a connecting shaft through a bevel gear set, the lower side of the connecting shaft is connected to a power motor, the lower side of the power motor is fixedly connected to the bottom of the installation box, a turntable is fixedly connected to the left side of the driving shaft, a placement box is fixedly provided on the left side of the turntable, an adjusting component is connected in the placement box, a long rod is hinged on the left side of the adjusting component, a reciprocating component is hinged on the upper side of the long rod, the upper side of the reciprocating component is connected to the installation box, a connecting sleeve is fixedly connected to the front side of the reciprocating component, a hollow tongue sleeve is fixedly connected to the front side of the connecting sleeve, a negative pressure pipe is fixedly connected to the rear side of the connecting sleeve, and a negative pressure device is connected to the lower side of the negative pressure pipe.
2. The tongue muscle rehabilitation training device according to claim 1, characterized in that: The reciprocating component includes a slide plate hinged to the front side of the long rod, two parallel cross bars are arranged on the upper side of the inner wall of the installation box, both ends of the cross bars are fixedly connected with fixed plates, the upper side of the fixed plate is fixedly connected to the upper end of the inner wall of the installation box, and sockets are provided on the left and right sides of the slide plate, the cross bars are inserted into the sockets and the slide plate can slide freely along the front and rear sides of the cross bars, a telescopic rod is fixedly arranged on the middle side of the front end surface of the slide plate, the telescopic rod is slidably connected to the installation box, and the front end of the telescopic rod is fixedly connected to the connecting sleeve, a reciprocating rack is fixedly connected to the right side of the slide plate, the reciprocating rack is meshedly connected with a massage component, an arc-shaped massage sleeve is fixedly connected to the front side of the massage component, and a plurality of massage balls are hingedly connected to the inner ball of the arc-shaped massage sleeve.
3. The tongue muscle rehabilitation training device according to claim 2, characterized in that: The massage component includes a transmission gear meshing with a reciprocating rack, the transmission gear is fixedly connected to a first transmission shaft, a hanging plate is fixedly connected to the upper side of the inner wall of the installation box, the first transmission shaft is connected to the second transmission shaft through a bevel gear set, one side of the second transmission shaft is rotatably connected to the hanging plate, the other side of the second transmission shaft is rotatably connected to the installation box, the second transmission shaft is connected to a third transmission shaft through a belt and a pulley, the third transmission shaft is rotatably connected to the installation box, a spline rod is fixedly provided on the front end surface of the third transmission shaft, a fourth transmission shaft is plugged into the front side of the spline rod, the connecting sleeve is fixedly connected to a sleeve, the fourth transmission shaft is penetrated through the inner side of the sleeve and rotates freely in the sleeve, and the fourth transmission shaft is fixedly connected to the arc-shaped massage sleeve.
4. The tongue muscle rehabilitation training device according to claim 1, characterized in that: The adjusting component includes an adjusting screw which is rotatably connected and arranged in the placement box. A moving block is threadedly connected to the middle side of the adjusting screw. The moving block slides freely along the upper and lower sides of the inner wall of the placement box. A plug rod is fixedly connected to the outer side of the moving block. The left side of the plug rod is hinged to the long rod. A short shaft is fixedly connected to the upper end of the adjusting screw. The short shaft is rotatably connected to the placement box. An adjusting rod is connected to the upper side of the short shaft through a bevel gear set. An opening is opened on the middle side of the driving shaft. The adjusting rod is rotatably connected to the opening. The right side of the adjusting rod is rotatably connected to the placement box. A handle is fixedly connected to the right end of the adjusting rod.
5. The tongue muscle rehabilitation training device according to claim 1, characterized in that: The upper side of the negative pressure pipe is fixedly connected with a negative pressure gauge, and the right side of the negative pressure gauge is fixedly connected with the installation box.
6. The tongue muscle rehabilitation training device according to claim 1, characterized in that: A through hole is opened in the middle side of the reciprocating rack, an auxiliary rod is passed through the through hole, and two ends of the auxiliary rod are fixedly connected to the installation box.
7. The tongue muscle rehabilitation training device according to claim 1, characterized in that: The tongue cover and the arc-shaped massage cover are both made of silicone material.
8. The tongue muscle rehabilitation training device according to claim 1, characterized in that: A lifting rod is fixedly arranged on the upper side of the installation box.
Citation Information
Patent Citations
A swallowing disorder rehabilitation training device for the elderly
CN117481960B