Device for preventing mental patient from biting tongue
By designing a detachable anti-bite tongue device, the problem of not being able to replace damaged parts in existing technologies is solved, achieving convenience in replacement and cleaning, and reducing usage costs.
Patent Information
- Application Number
- CN202520307061.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing anti-bite tongue devices are one-piece molded structures, making it impossible to replace damaged parts, which increases usage costs and makes cleaning difficult.
Design an anti-biting tongue device that includes a cross-connected swing rod and a fixed rod. The biting pad is removable and is snapped in place by limiting protrusions and grooves, making it easy to replace and clean.
The removable and replaceable bite pads reduce operating costs and improve the ease of cleaning the device.
Smart Images

Figure CN223654004U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of patient care technology, and in particular to a device for preventing mental patients from biting their tongues. Background Technology
[0002] In cases of epileptic seizures, psychosis, or other similar conditions, patients may involuntarily bite their tongues during periods of abnormal excitement or convulsions. Therefore, it is necessary to place a medical device in the patient's mouth to prevent tongue biting.
[0003] In the prior art, an anti-tongue-biting dental brace (application number: 2022228483436) is disclosed. This brace holds the patient's upper and lower teeth in place on upper and lower pads, and places the patient's tongue on the inner pad, thus preventing discomfort caused by the device being too hard and colliding with the patient's teeth. However, the biting force of mental patients during an episode is very strong, and the dental brace may be damaged. Since this dental brace is molded as a single piece, the biting structure cannot be removed and replaced. Therefore, the entire dental brace must be replaced, which may increase the cost of use. Utility Model Content
[0004] The technical problem to be solved by this application is to provide a device to prevent mental patients from biting their tongues, and to facilitate the replacement of parts that have been bitten by the patients.
[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:
[0006] A device for preventing mental patients from biting their tongue includes two swing rods that are distributed on the left and right and cross each other. The rear ends of the two swing rods are respectively connected to a fixed rod. The outer side of the fixed rod is provided with a locking groove. The locking groove is provided with a biting pad. The inner wall of the locking groove and the biting pad is provided with a limiting protrusion. The end face of the biting pad facing the locking groove is provided with a limiting groove that matches the limiting protrusion.
[0007] The occlusal pad is placed between the patient's molars on both sides to prevent tongue biting by restricting the patient's bite. The occlusal pad can be removed and replaced if it is damaged.
[0008] To prevent patients from biting the pendulum fixation bar, in some embodiments, the thickness of the occlusal pad is greater than the thickness of the fixation bar.
[0009] In order to reduce the size of the swing arms by combining them, so as to facilitate the placement of the fixation bar and occlusal pad inside the patient's mouth, in some embodiments, the two swing arms are hinged together.
[0010] In order to enable the two swing arms to open automatically, in some embodiments, an arc-shaped guide rod is provided between the front ends of the two swing arms, and the left end of the guide rod is fixedly connected to the right side of the left swing arm; the front end of the right swing arm is provided with a through hole and is movably sleeved on the right side of the guide rod; a spring is sleeved between the front ends of the two swing arms and on the guide rod.
[0011] To prevent the swing arm from coming off the guide rod, in some embodiments, the guide rod has a thread on its right side, and a nut is screwed onto the thread.
[0012] Further extending the above scheme, the nut is located on the right side of the right-side swing arm.
[0013] Compared with the prior art, this application achieves at least the following beneficial effects: The device is designed with a detachable structure for the swing rod, the fixed rod, and the occlusal pad placed between the molars on the left and right sides of the patient's mouth. After each use, the damaged or saliva-stained occlusal pad can be removed and discarded. After cleaning the swing rod and the fixed rod, a new occlusal pad can be installed for continued use. This not only prevents the patient from biting their tongue but also facilitates replacement and saves on usage costs. Attached Figure Description
[0014] One or more embodiments of this application will now be described by way of example only with reference to the accompanying drawings, in which:
[0015] Figure 1 This is a perspective view of a device for preventing mental patients from biting their tongue, according to one embodiment of this application.
[0016] Figure 2 for Figure 1 A three-dimensional schematic diagram of the occlusal pad separating from the fixing rod in the device for preventing mental patients from biting their tongues according to the embodiment;
[0017] Figure 3 for Figure 2 A partial schematic diagram of point A in the middle;
[0018] Figure 4 for Figure 2 A partial schematic diagram at point B in the middle;
[0019] Figure 5 This is a cross-sectional view of the fixing rod and the interlocking pad layer of this application.
[0020] The following are the labels in the diagram: 1. Swing rod; 11. Pressing plate; 2. Fixing rod; 21. Snap-fit groove; 22. Limiting protrusion; 3. Engaging pad; 31. Sink; 32. Limiting groove; 4. Guide rod; 5. Spring; 6. Nut. Detailed Implementation
[0021] The present application will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.
[0022] In the description of this application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.
[0023] The inventors addressed the shortcomings of existing technologies, such as the inability to replace damaged parts or locations. After careful analysis, they discovered that the main reason for this problem lies in the fact that the existing anti-tongue-biting dental brace is made of soft silicone. However, the strong biting force of mental patients during an episode can damage the biting parts. Since the brace is a one-piece structure, damaged parts cannot be replaced, and saliva can enter these gaps, making cleaning difficult. Furthermore, because the brace has openings on the bite plate to facilitate saliva flow, and the one-piece design makes these openings difficult to clean, the entire brace must be discarded to prevent damage and bacterial growth. While anti-tongue-biting devices are ideally designed for single use to avoid cross-infection, discarding the entire brace, especially since the external oral structures are not infected, could increase the cost of single-use applications. For example, patent CN211156341U discloses a tongue-biting prevention device for psychiatric patients. In this device, the tongue-biting prevention device is a single piece, and the strap and mask are sewn together and cannot be separated. Therefore, when used once, the entire device needs to be discarded, which increases the cost of single use. Based on the above analysis, the inventors have made structural improvements to the tongue-biting prevention device for patients.
[0024] like Figure 1 and Figure 2As shown, in one embodiment of a device for preventing mental patients from biting their tongue, the device includes two swing rods 1 made of medical plastic or metal, which are distributed horizontally and intersecting each other. The swing rods 1 are preferably square in shape and distributed vertically. The rear ends of the two swing rods 1 are respectively connected to rectangular fixed rods 2. Since the two swing rods 1 are distributed vertically, the swing rod 1 on the right is higher than the swing rod 1 on the left. In order to make the top and bottom surfaces of the fixed rods 2 be on the same plane, the top surface of the fixed rod 2 on the right is coplanar with the top surface of the swing rod 1 on the right, and the bottom surface protrudes downward. The bottom surface of the fixed rod 2 on the left is coplanar with the bottom surface of the swing rod 1 on the left, and the top surface protrudes upward.
[0025] The outer sides (opposite end faces) of the two fixing rods 2 are respectively provided with locking grooves 21, and the locking grooves 21 are equipped with occlusal pads 3. The material of the occlusal pads 3 can be silicone, bamboo, wood or other non-toxic materials suitable for placement inside the oral cavity.
[0026] like Figure 3 and Figure 4 As shown, a hemispherical limiting protrusion 22 is provided on the inner wall of the locking groove 21 opposite to the biting pad 3. A limiting groove 32 matching the limiting protrusion 22 is provided on the end face of the biting pad 3 facing the locking groove 21. The locking groove 21 extends from the front to the rear end of the fixing rod 2. When installing the biting pad 3, the biting pad 3 is pushed forward at the rear end of the fixing rod 2. The limiting groove 32 of the biting pad 3 and the limiting protrusion 22 in the locking groove 21 cooperate to lock and fix the biting pad 3 in the fixing rod 2. At the connection between the swing rod 1 and the fixing rod 2, the rear end of the swing rod 1 blocks half of the space of the locking groove 21 of the fixing rod 2. When installing the biting pad 3, the front end of the biting pad 3 will contact the rear end of the swing rod 1, and the biting pad 3 can no longer be pushed forward, indicating that the biting pad 3 has been installed in place.
[0027] like Figure 5 As shown, the cross-section of the snap-fit groove 21 is convex, and the interlocking pad 3 is semi-circular, with one flat end facing the snap-fit groove 21. The top and bottom surfaces of this end are respectively provided with recesses 31 that match the snap-fit groove 21. After the interlocking pad 3 is installed in the snap-fit groove 21, the two recesses 31 wrap around the two ribs of the convex-shaped snap-fit groove 21, preventing the interlocking pad 3 from coming out of the snap-fit groove 21.
[0028] It is worth noting that the limiting groove 32 is formed on one end face of the interlocking pad layer 3, which is a plane.
[0029] Continue to refer to Figure 5 The thickness of the occlusal pad 3 is greater than the thickness of the fixation bar 2. This way, when the patient makes a biting motion, he will bite the occlusal pad 3 first, instead of biting the fixation bar 2, which can also protect the patient's teeth.
[0030] The edges of the occlusal pad 3 are curved to prevent scratching the patient's mouth.
[0031] The two swing rods 1 should be connected by hinges, mainly because when the two swing rods 1 are open, they may be too wide to be placed in the patient's mouth. By using the hinges, the two swing rods 1 can be closed before being placed in the patient's mouth. The two occlusal pads 3 are roughly circular in shape, which reduces the overall size and makes it easier to insert the occlusal pads 3 into the mouth.
[0032] In order to enable the occlusal pad 3 to automatically expand to the left and right sides and fit between the upper and lower molars after being inserted into the oral cavity, in this embodiment, an arc-shaped guide rod 4 is provided between the front ends of the two swing rods 1. The front ends of the two swing rods 1 form a vertical flat plate, forming a pressing plate 11. The left end of the guide rod 4 is welded and fixedly connected to the lower right side of the pressing plate 11 at the front end of the left swing rod 1. A through hole is opened on the lower side of the pressing plate 11 at the front end of the right swing rod 1, and it is movably sleeved on the right side of the guide rod 4. A spring 5 is sleeved between the front ends of the two swing rods 1 and on the guide rod 4.
[0033] The function of the pressing plate 11 is to facilitate the pinching of this device. By pinching the pressing plate 11 on the two swing rods 1 with the thumb and forefinger respectively, and then pinching it with force, the spring 5 is compressed, and the two biting pads 3 are closed and brought closer to each other through the swing rod 1 and the fixed rod 2. Then, the pressing plate 11 is released, and the pressing plate 11 is pushed open by the pushing force of the spring 5. The biting pads 3 open to the left and right sides and are inserted into the upper and lower molars on the left and right sides of the oral cavity.
[0034] To facilitate control over the opening degree of the two occlusal pads 3 and prevent them from opening excessively and pressing against the left and right sides of the oral cavity, the guide rod 4 has a thread on its right side, with a nut 6 screwed onto the thread. The nut 6 is located to the right of the right-side swing rod 1. Rotating the nut 6 to the left will reduce the opening angle of the two swing rods 1, while rotating the nut 6 to the right will increase the opening angle of the two swing rods 1.
[0035] When in use, install the occlusal pad 3 at the snap-fit slots 21 of the two fixed rods 2 respectively. Then, by pinching the pressing plate 11 at the front end of the two swing rods 1 with your hand, the two occlusal pads 3 are brought together to reduce their size and make it easier to put into the patient's mouth. After being put into the mouth, release the pressing plate 11. The pressing plate 11 is pushed open by the pushing force of the spring 5, and the occlusal pad 3 opens to the left and right sides and is inserted between the upper and lower molars on the left and right sides of the mouth.
[0036] It should be understood that all the above embodiments are exemplary and not restrictive. Various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the protection scope of this application.
Claims
1. A device for preventing mentally ill patients from biting their tongue, characterized in that, It includes two swing rods that are distributed to the left and right and cross each other. The rear ends of the two swing rods are respectively connected to fixed rods. The outer side of the fixed rods is provided with a snap-fit groove. The snap-fit groove is provided with a biting pad. The inner wall of the snap-fit groove and the biting pad is provided with a limiting protrusion. The end face of the biting pad facing the snap-fit groove is provided with a limiting groove that matches the limiting protrusion.
2. The apparatus according to claim 1, characterized in that, The cross-section of the snap-fit groove is convex.
3. The apparatus according to claim 2, characterized in that, The interlocking pad is semi-circular, and the top and bottom surfaces of the end facing the interlocking groove are respectively provided with grooves that match the interlocking groove.
4. The apparatus according to claim 3, characterized in that, The thickness of the engagement pad is greater than the thickness of the fixing rod.
5. The apparatus according to claim 1, characterized in that, The two swing rods are hinged together.
6. The apparatus according to claim 5, characterized in that, An arc-shaped guide rod is provided between the front ends of the two swing rods. The left end of the guide rod is fixedly connected to the right side of the left swing rod. A through hole is opened on the front side of the right swing rod, and it is movably sleeved on the right side of the guide rod. A spring is sleeved between the front ends of the two swing rods and on the guide rod.
7. The apparatus according to claim 6, characterized in that, The guide rod has a thread on its right side, and a nut is screwed onto the thread.
8. The apparatus according to claim 7, characterized in that, The nut is located on the right side of the right-hand swing arm.
Citation Information
Patent Citations
Tongue biting prevention device for psychiatric patients
CN211156341U