Mouth opening training device
Patent Information
- Application Number
- CN202522264934.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-27
Smart Images

Figure CN224893252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical rehabilitation equipment technology, specifically to an mouth-opening training device. Background Technology
[0002] Head and neck tumors include three main categories: neck tumors, otolaryngological tumors, and others. Neck tumors fall under the general surgery department in comprehensive hospitals, while otolaryngological tumors are more common. After surgery, patients need to undergo radiotherapy and rehabilitation through mouth-opening exercises, which require the use of mouth-opening training devices. CN218607876U discloses a mouth-opening exercise device after radiotherapy. By incorporating a return mechanism, when the patient uses the device, the teeth are engaged with the slots. By squeezing the two dental braces, a sliding block slides within the sliding groove, causing the sliding block to compress a spring. When the patient releases the pressure, the spring resets the dental braces, making it convenient for the patient to use at any time and improving the efficiency of the device.
[0003] Currently, in existing technologies, the spring is placed inside the sliding groove during use, making it difficult to remove. Consequently, it is not convenient to replace springs of different stiffnesses according to the training situation. Furthermore, the number of training sessions cannot be recorded during training, making it inconvenient for medical staff to check the training progress. Utility Model Content
[0004] The purpose of this invention is to provide a novel mouth-opening training device to solve the problems mentioned in the background art, where the spring is located inside the sliding groove, making it inconvenient to remove the spring and thus difficult to conveniently replace springs of different stiffness according to the training situation. Furthermore, it is not possible to record the number of training sessions during training, making it inconvenient for medical staff to check the training progress.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel mouth-opening training device, comprising a main body and a recording component. A limiting component and a supporting spring are movably installed on the inner side of the main body, a mouth support is movably installed on the outer side of the main body, and a fixing component connected to the mouth support is movably installed on the inner side of the main body. The main body includes a lower mouth support and an upper mouth support, which are hinged together. The lower and upper mouth supports have two symmetrically arranged locking holes inside. Symmetrically arranged locking blocks are fixedly installed on the inner sides of the lower and upper mouth supports, and the supporting spring is movably engaged between the locking blocks. The recording component includes a housing, which is fixedly installed on the top of the lower mouth support. A counting button and a reset button are fixedly installed on the top of the housing, and a display screen is provided on the top of the housing.
[0006] Preferably, the limiting component includes a locking post one and a locking post two. The outer sides of the locking post one and the locking post two are respectively fixedly connected to a limiting piece one and a limiting piece two. The locking post one and the locking post two are respectively movably locked into the locking holes one inside the lower dental pad and the upper dental pad. A pull rope is fixedly connected between the locking post one and the locking post two.
[0007] Preferably, the limiting component and the support spring are symmetrically arranged between the lower and upper dental pads.
[0008] Preferably, the length of the support spring is greater than the length of the pull rope.
[0009] Preferably, soft pads are fixedly installed on the inner sides of both the lower and upper dental pads.
[0010] Preferably, the dental tray has a fixing hole inside that corresponds to the position of the first locking hole; the fixing component includes a post, which is movably engaged inside the second locking hole and the fixing hole, and a limiting piece three located inside the fixing hole is fixedly connected to the outside of the post.
[0011] Preferably, a knob is fixedly connected to the side of the insert away from the limiting piece three.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By rotating the upper dental pad, the counting button located on the upper housing of the lower dental pad is pressed down. After the counting button is triggered, the count is displayed on the screen, which is convenient for medical staff to check and know the training status. By rotating the first locking pin in the first locking hole, the locking pin rotates and the limiting piece disengages from the first locking hole, thereby releasing the restriction on the opening angle of the upper dental pad. At this time, the support spring can be replaced. After completion, the locking pin is reinserted into the first locking hole and screwed. The pull rope is straightened to limit the opening angle of the upper dental pad and prevent the support spring from falling out, thus conveniently realizing the replacement of support springs with different stiffness and improving the flexibility of use. 2. When using this product, if you encounter a patient with incomplete teeth, you can place the dental tray inside the lower and upper dental pads, ensuring that the fixing hole and the second clasp are aligned. Then, align the third limiting piece with the second clasp, insert the insert into the second clasp and the fixing hole, and rotate it to misalign the third limiting piece with the fixing hole to limit the dental tray. This allows for adjustments to suit the specific conditions of different patients. The operation is simple, and it is convenient to disassemble and clean the dental tray. It also allows medical staff to flexibly adjust and maintain the product according to the specific condition of the patient. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present utility model; Figure 3 This is a schematic diagram of the structure of the main body and recording components of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A; Figure 5 This is an exploded three-dimensional structural diagram of the dental tray and fixation components of this utility model.
[0014] In the diagram: 1. Main body; 11. Lower dental pad; 12. Upper dental pad; 13. Locking hole one; 14. Locking hole two; 15. Locking block; 2. Recording component; 21. Housing; 22. Counting button; 23. Display screen; 24. Reset button; 3. Limiting component; 31. Locking post one; 32. Limiting piece one; 33. Locking post two; 34. Limiting piece two; 35. Pull cord; 4. Support spring; 5. Dental tray; 51. Fixing hole; 6. Fixing component; 61. Insert post; 62. Limiting piece three; 63. Knob. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This utility model provides a technical solution: a novel mouth-opening training device, including a main body 1 and a recording component 2. A limiting component 3 and a support spring 4 are movably installed on the inner side of the main body 1, and a mouth tray 5 is movably installed on the outer side of the main body 1. A fixing component 6 connected to the mouth tray 5 is movably installed on the inner side of the main body 1. The main body 1 includes a lower mouth pad 11 and an upper mouth pad 12 arranged in an arc shape corresponding to the shape of the upper and lower jaws of the user's mouth. The two arc-shaped ends of the lower mouth pad 11 and the upper mouth pad 12 are hinged to each other. The lower mouth pad 11 and the upper mouth pad 12 are provided with two symmetrically arranged locking holes 13 and 14. The locking holes 13 and 14 are respectively located on the occlusal surface of the lower mouth pad 11 and the upper mouth pad 12. The locking holes 13 are located on the outer side of the locking holes 14, that is, the two symmetrically arranged locking holes 13 are close to the hinge of the lower mouth pad 11 and the upper mouth pad 12, and the two symmetrically arranged locking holes 14 are far away from the hinge of the lower mouth pad 11 and the upper mouth pad 12. Both the lower dental pad 11 and the upper dental pad 12 are fixedly installed with symmetrically arranged locking blocks 15 on their respective sides. That is, two locking blocks 15 are symmetrically arranged on both sides of the lower dental pad 11 near the hinge of the lower dental pad 11 and the upper dental pad 12, and two locking blocks 15 are symmetrically arranged on both sides of the upper dental pad 12 near the hinge of the lower dental pad 11 and the upper dental pad 12. The two sets of locking blocks 15 on the lower dental pad 11 and the upper dental pad 12 are matched and correspondingly arranged with each other. The upper and lower ends of the support spring 4 are respectively movably engaged with the locking block 15 between the lower dental pad 11 and the upper dental pad 12; the recording component 2 includes a housing 21, which is fixedly installed on the top of the lower dental pad 11. A counting button 22 and a reset button 24 are fixedly installed on the top of the housing 21. A display screen 23 is provided on the top of the housing 21. When in use, the upper dental pad 12 is rotated to touch and press down the counting button 22 located on the housing 21 above the lower dental pad 11. The counting button 22 is triggered by being pressed down, and the detected pressing action is converted into an electrical signal. The electrical signal is transmitted to the circuit board built into the housing 21 through the circuit. The processing chip on the circuit board receives the signal and converts it into a digital signal. Finally, the counter completes the cumulative counting and displays the data on the display screen 23 on the housing 21, so that medical staff can view and know the training status.
[0017] The limiting component 3 includes a locking post 31 and a locking post 33. The outer sides of the locking post 31 and the locking post 33 are respectively fixedly connected to a limiting piece 32 and a limiting piece 34. The locking post 31 and the locking post 33 are respectively movably locked into the locking holes 13 inside the lower jaw pad 11 and the upper jaw pad 12. A pull rope 35 is fixedly connected between the locking post 31 and the locking post 33. When it is necessary to replace the support spring 4 with a different stiffness, the locking post 31 inside the locking hole 13 is rotated. The rotation of the locking post 31 causes the limiting piece 32 to disengage from the locking hole 13, thereby releasing the restriction on the opening angle of the upper jaw pad 12. At this time, the support spring 4 can be replaced. After completion, the locking post 31 is reinserted into the locking hole 13 and screwed on. The pull rope 35 is straightened to limit the opening angle of the upper jaw pad 12 and prevent the support spring 4 from falling out, thereby conveniently realizing the replacement of support springs 4 with different stiffnesses and improving the flexibility of use.
[0018] The limiting component 3 and the support spring 4 are symmetrically arranged between the lower jaw pad 11 and the upper jaw pad 12. The symmetrical arrangement can ensure that the force is balanced during use and avoid the deformation or damage of the device due to uneven force. The symmetrical structure helps to improve the stability of the device, so that the lower jaw pad 11 and the upper jaw pad 12 always maintain a good relative position under the action of the support spring 4, thereby ensuring the training effect.
[0019] The length of the support spring 4 is set to be greater than the length of the pull rope 35. The design of the support spring 4 being longer than the length of the pull rope 35 ensures that the support spring 4 always maintains a certain preload during the use of the device. The presence of this preload makes the relative position between the upper tooth pad 12 and the lower tooth pad 11 more stable, avoiding loosening or displacement caused by external forces. At the same time, the longer support spring 4 can continue to provide elastic support after the pull rope 35 is straightened, preventing the support spring 4 from coming off.
[0020] Both the lower tooth pad 11 and the upper tooth pad 12 have soft pads fixedly installed on their inner sides. The soft pads are made of soft and elastic material, which can effectively reduce the pressure on the teeth and gums during training.
[0021] Please see Figure 5The dental tray 5 has a fixing hole 51 inside that corresponds to the position of the first locking hole 13. The fixing component 6 includes a post 61, which is movably locked inside the second locking hole 14 and the fixing hole 51. The external part of the post 61 is fixedly connected to a limiting piece 62 located inside the fixing hole 51. When using the dental tray, if the patient has incomplete teeth, the dental tray 5 can be placed inside the lower dental pad 11 and the upper dental pad 12, ensuring that the fixing hole 51 and the second locking hole 14 are aligned. Then, the limiting piece 62 is aligned with the second locking hole 14, and the post 61 is inserted into the second locking hole 14 and the fixing hole 51. The limiting piece 62 is rotated to make the limiting piece 62 and the fixing hole 51 misaligned to limit the dental tray 5. This can be adjusted to suit the specific situation of different patients. The operation is simple and convenient for the dental tray 5 to be disassembled and cleaned. It is also convenient for medical staff to flexibly adjust and maintain the dental tray according to the specific condition of the patient.
[0022] A knob 63 is fixedly connected to the side of the insert 61 away from the limiting piece 62. The knob 63 is designed to make it easy for medical staff to apply force during operation. By rotating the knob 63, the position of the limiting piece 62 can be quickly adjusted.
[0023] Working principle: During use, the support spring 4 located between the inner latch 15 of the lower and upper dental pads 11 provides support, causing the lower dental pad 11 and upper dental pad 12 to open. The patient bites down on the lower dental pad 11 and upper dental pad 12 to compress the support spring 4 for training. When biting down, the upper dental pad 12 touches the counting button 22 pressed down on the housing 21. The counting button 22 is triggered and transmits a signal to the electronic chip inside the housing 21. After processing the information, the electronic chip displays the count on the display screen 23 through the housing 21 for easy viewing by medical staff. When it is necessary to replace the support spring 4 with one of different stiffness, by rotating the locking pin 31 located in the locking hole 13, the limiting piece 32 is disengaged from the locking hole 13 and thus disengaged, thereby releasing the restriction on the opening angle of the upper jaw pad 12. After replacing the support spring 4, the locking pin 31 is inserted into the locking hole 13 again and screwed. The pull rope 35 is stretched, thereby restricting the opening angle of the upper jaw pad 12 and preventing the support spring 4 from disengaging. This allows for convenient replacement of support springs 4 with one of different stiffness, improving the flexibility of use. When encountering patients without complete teeth during use, the dental tray 5 can be inserted into the lower dental pad 11 and the upper dental pad 12, aligning the fixing hole 51 and the second locking hole 14. By aligning the limiting piece 62 with the second locking hole 14, the insert 61 is inserted into the second locking hole 14 and the fixing hole 51. Rotating the knob 63 causes the limiting piece 62 to be misaligned with the fixing hole 51, thus limiting the dental tray 5. This allows for adjustments to suit the specific conditions of different patients, making it convenient to use. The above is the working process of the entire device. Any content not described in detail in this manual belongs to the prior art known to those skilled in the art.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An mouth-opening training device, comprising a main body (1) and a recording component (2), characterized in that: The inner side of the main body (1) is movably equipped with a limiting component (3) and a support spring (4), the outer side of the main body (1) is movably equipped with a dental tray (5), and the inner side of the main body (1) is movably equipped with a fixing component (6) connected to the dental tray (5). The main body (1) includes a lower dental pad (11) and an upper dental pad (12). The lower dental pad (11) and the upper dental pad (12) are hinged together. The lower dental pad (11) and the upper dental pad (12) are provided with two symmetrically arranged locking holes (13) and (14) inside. The lower dental pad (11) and the upper dental pad (12) are fixedly installed with two symmetrically arranged locking blocks (15) on the inner side. The support spring (4) is movably locked between the locking blocks (15). The recording component (2) includes a housing (21), which is fixedly installed on the top of the lower dental pad (11). A counting button (22) and a reset button (24) are fixedly installed on the top of the housing (21), and a display screen (23) is provided on the top of the housing (21).
2. The mouth-opening training device according to claim 1, characterized in that: The limiting component (3) includes a locking post one (31) and a locking post two (33). The outer sides of the locking post one (31) and the locking post two (33) are respectively fixedly connected to a limiting piece one (32) and a limiting piece two (34). The locking post one (31) and the locking post two (33) are respectively movably locked into the locking hole one (13) inside the lower dental pad (11) and the upper dental pad (12). A pull rope (35) is fixedly connected between the locking post one (31) and the locking post two (33).
3. The mouth-opening training device according to claim 1, characterized in that: The limiting component (3) and the support spring (4) are symmetrically arranged between the lower dental pad (11) and the upper dental pad (12).
4. The mouth-opening training device according to claim 3, characterized in that: The length of the support spring (4) is set to be greater than the length of the pull rope (35).
5. The mouth-opening training device according to claim 1, characterized in that: The inner sides of both the lower dental pad (11) and the upper dental pad (12) are fixedly fitted with soft pads.
6. The mouth-opening training device according to claim 1, characterized in that: The inside of the dental tray (5) is provided with a fixing hole (51) corresponding to the position of the card hole (13); The fixing component (6) includes a plug (61), which is movably engaged with the inside of the second locking hole (14) and the fixing hole (51). The plug (61) is fixedly connected to the outside of the limiting piece (62) located in the fixing hole (51).
7. The mouth-opening training device according to claim 6, characterized in that: A knob (63) is fixedly connected to the side of the insert (61) away from the limiting piece three (62).
Citation Information
Patent Citations
Post-radiotherapy mouth opening exercise device
CN218607876U