Pediatric oral cavity tongue pressing device
By integrating the bow arm, support block, long handle connecting rod, and medical camera, the design solves the problems of limited functionality and cumbersome operation of pediatric dental examination devices, achieving multi-functional integrated operation and improving the stability and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAIJI COUNTY PEOPLES HOSPITAL OF GUANGDONG PROVINCE
- Filing Date
- 2026-03-17
- Publication Date
- 2026-05-26
Smart Images

Figure CN122074886A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pediatric oral examination technology, specifically to a pediatric oral tongue depressor. Background Technology
[0002] In pediatric dental care, effectively exposing the internal structures of the oral cavity and clearly observing areas such as the tongue and pharynx is crucial. Traditional methods mainly rely on doctors holding disposable tongue depressors, which requires the doctor to hold the tongue depressor in one hand while performing other operations (such as examinations or taking pictures) with the other, making the procedure cumbersome and unstable.
[0003] While existing oral dilatation devices offer some support, they generally suffer from the following shortcomings: low integration of function and operation, failing to simultaneously perform oral dilatation, tongue depressor, lighting, and image recording. Doctors must hold the light source and imaging equipment separately, leading to cumbersome operation, a high risk of cross-contamination, difficulty in securing external devices, and cable interference with the field of vision. Furthermore, they lack mechanical stability and self-holding capacity, with suboptimal dilatation mechanism design that easily generates uneven lateral pressure or displacement, increasing oral discomfort in children. They also lack an automatic reset mechanism, requiring doctors to continuously apply force to maintain the dilatation state, affecting the smoothness of the operation. Therefore, there is an urgent need for a pediatric-specific oral tongue depressor and examination device that is easy to operate, stable, reliable, highly integrated, and effectively reduces discomfort for children. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a pediatric oral tongue depressor that solves the current problem of not being able to simultaneously accommodate oral expansion and photography.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a pediatric oral tongue depressor, comprising two arch arms and a support block for expanding the patient's oral cavity, wherein an integrated block and a connecting seat for expansion are provided between the two arch arms, and a long-handled connecting rod is rotatably provided at the side end of the connecting seat and the support block for achieving initial transmission. When the integrated block is continuously pushed towards the support block, the arch arms and the support block can be expanded by the lateral expansion of the long-handled connecting rod.
[0006] A secondary connecting rod is rotatably configured between the bow arm and the long-handled connecting rod to limit the bow arm's expansion stroke.
[0007] A groove is provided in the middle of the bow arm.
[0008] In some embodiments, the support block has a concave arcuate structure and is covered with a rubber pad to prevent injury to the patient's lips. During the examination, the patient's upper and lower teeth are embedded in the concave groove to prevent displacement.
[0009] In some embodiments, the bow arm has an irregular curved arc structure, and its end is fitted with a support block by a micro-bolt. The connecting seat and the integrated block are connected in the same way.
[0010] In some embodiments, the long-handled connecting rod has a hollowed-out strip-shaped groove structure in the middle, and the secondary connecting rod is inserted into the hollowed-out groove through the shaft at its end, with the strip-shaped groove serving as additional offset space.
[0011] In some embodiments, a push rod for gripping is provided on one side of the integrated block, and a "U"-shaped frame is provided between the push rod and the integrated block. The "U"-shaped frame makes the thrust transmission more uniform by changing the single transmission path of the thrust to two-point pressure, and prevents the pressure on the two sides of the bow arm from being different.
[0012] In some embodiments, a medical camera for taking pictures of the patient's mouth is hung in the middle of the bow arm, and an axle is provided on the side of the medical camera. The axle is hung in the groove in the middle of the bow arm through the central axis and is supported by the axle to achieve multi-angle rotation. The medical camera can be directly removed and data can be transmitted through the internal USB interface. Alternatively, it can be connected to a computer via an external data cable through the USB interface for real-time viewing.
[0013] In some embodiments, a tongue depressor is fixedly installed in the middle of the bow arm. The tongue depressor is in a fixed position and is positioned below the patient's mouth during an oral examination. The patient needs to insert their tongue into the gap between the tongue depressor and the bow arm on that side.
[0014] In some embodiments, a coaxial arm is rotatably provided on the side end of the integrated block, and insert rods are rotatably provided on both sides of the end of the coaxial arm. The insert rods can be rotated by the support of the coaxial arm. The coaxial arm passes obliquely through the two bow arms, and a spring is sleeved on the periphery of the section through which it passes. The spring will continuously apply pre-tightening pressure to the outside of the bow arm and keep the bow arm in a posture of closing towards the center after losing the central thrust. The bottom of the coaxial arm is equipped with a supplementary light for providing intraoral illumination.
[0015] In some embodiments, a sleeve is fitted over the insertion rod where it passes through the bow arm to help the insertion rod slide within a small range inside the bow arm.
[0016] Compared with the prior art, the present invention provides a pediatric oral tongue depressor, which has the following beneficial effects: A pediatric oral tongue depressor device involves a doctor slowly expanding the bow arm by holding a push rod and applying pressure. The bow arm is supported by a long-handled connecting rod and limited by a secondary connecting rod. The patient inserts their tongue into the space between the tongue depressor and the bow arm and remains still. When the patient's mouth is sufficiently expanded for examination, the doctor holds the push rod with one hand to maintain the expansion of the bow arm, while using the other hand to adjust the shooting range of a medical camera and examine the patient's mouth by viewing the image imported into a computer, until a light touch on the touch control panel takes the picture. Throughout the process, a supplemental light continuously illuminates the patient's mouth to ensure image clarity. After the oral examination is complete, the doctor slowly releases the push rod, and the bow arm slowly returns to its original position and closes due to spring pressure. Through the above setup and process, the device achieves the following beneficial effects: The highly integrated design completely solves the problems of single function and cumbersome operation: ① Multifunctional integration: The medical camera 15 is suspended from the groove 17 of the bow arm 1 via the wheel axle 16, and combined with the supplementary light 12 at the bottom of the coaxial arm 8, it realizes simultaneous lighting and imaging. Doctors can control the imaging through the touch control panel 18 without holding the equipment. The USB interface supports real-time image transmission to the computer; the design of the tongue depressor 13 fixed to the bow arm 1 allows the tongue depressor function to be completed simultaneously with oral expansion. ② Optimized operation process: The linkage design of the push rod 5 and the "U"-shaped frame 14 realizes two-handed control of the entire expansion-imaging process, significantly reducing the number of instrument replacement steps and avoiding the risk of cross-contamination; the external equipment cable is integrated into the device, eliminating visual interference. The hollow structure of the long-handled connecting rod 4 and the secondary connecting rod 7 precisely limits the tail offset of the bow arm 1, ensuring that the expansion trajectory is linear and controllable; the "U"-shaped frame 14 decomposes the single thrust of the push rod 5 into two-point pressure, reducing the force difference on the two sides of the bow arm 1 and effectively avoiding local pressure on the oral cavity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the side end planar structure of the bow arm in the expanded state of the present invention; Figure 3 This is a schematic diagram of the connection position structure of the single-sided bow arm, long-handled connecting rod, and auxiliary connecting rod of the present invention; Figure 4 This is a schematic diagram of the connection position of the bow arm and the tongue depressor plate of the present invention; Figure 5 This is a schematic diagram of the connection positions of the integrated block, the "U"-shaped frame, and the two side inserts of the present invention; Figure 6 This is a schematic diagram of the expansion surface structure of the bow arm in the expanded state of the present invention; Figure 7 This is a schematic diagram of the overall structure of the present invention when the bow arm is closed.
[0018] In the diagram: 1. Bow arm; 2. Support block; 3. Integrated block; 4. Long handle connecting rod; 5. Push rod; 6. Connecting seat; 7. Secondary connecting rod; 8. Coaxial arm; 9. Insert rod; 10. Sleeve; 11. Spring; 12. Fill light; 13. Tongue depressor; 14. "U" shaped frame; 15. Medical camera; 16. Wheel and axle; 17. Embedded groove; 18. Touch control panel. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., 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 invention and for 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 limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0022] Please see Figure 1-7 In this embodiment: a pediatric oral tongue depressor includes a bow arm 1 and a support block 2 for expanding the patient's oral cavity. An integrated block 3 and a connecting seat 6 for expansion connection are provided between the two bow arms 1. A long handle connecting rod 4 for initial transmission is rotatably provided at the side end of the connecting seat 6 and the support block 2. When the integrated block 3 is continuously pushed towards the support block 2, the bow arm 1 and the support block 2 can be expanded by the lateral expansion of the long handle connecting rod 4. The expansion stroke can help open the patient's oral cavity and facilitate subsequent examination steps.
[0023] Support block 2 has a concave arc-shaped structure and is covered with a layer of rubber pad to prevent injury to the patient's lips. This allows the patient's upper and lower teeth to be embedded in the groove, preventing displacement and improving the stability of the oral expansion procedure.
[0024] Bow arm 1 has an irregular curved arc structure (such as...) Figure 2 As shown in the figure, its end is fitted with a support block 2 by a tiny bolt, and the connecting seat 6 and the integrated block 3 are connected in the same way.
[0025] Since the end of the long-handled connecting rod 4 is connected to the bow arm 1 near the end, an additional connection fulcrum is provided to prevent the tail of the bow arm 1 from shifting when it expands: a secondary connecting rod 7 is rotatably set between the bow arm 1 and the long-handled connecting rod 4 to limit the expansion stroke of the bow arm 1; in order for the secondary connecting rod 7 to obtain an additional offset stroke according to the expansion and closing stroke of the bow arm 1, the middle part of the long-handled connecting rod 4 is set as a hollow structure, and the secondary connecting rod 7 is inserted into the hollow groove through the shaft at the end, so that the strip groove can be used as an additional offset space, thereby further improving flexibility.
[0026] Since the bow arm 1 acts in the patient's oral cavity and requires pressure to be applied to the integrated block 3 in the middle to control the expansion stroke, a push rod 5 for holding is set on one side of the integrated block 3 to facilitate the operation of the bow arm 1 by medical staff. A "U"-shaped frame 14 is set between the push rod 5 and the integrated block 3. The "U"-shaped frame 14 changes the single transmission path of the thrust to two-point pressure, making the transmission of the thrust more uniform. This prevents the difference in pressure on the two sides of the bow arm 1 from causing greater pressure in a local area of the patient's oral cavity.
[0027] It should be noted that: a groove 17 is provided in the middle of the bow arm 1, in the expanded state (such as...). Figure 1 As shown in the diagram, a medical camera 15 for taking pictures of the patient's oral cavity is hung in the middle of the upper bow arm 1. Figure 3 As shown, a wheel axle 16 is provided on the side of the medical camera 15. The wheel axle 16 is hung in the groove 17 in the middle of the bow arm 1 through the central axis, and the wheel axle 16 is used as a support to achieve multi-angle rotation. Thus, the medical camera 15 at this position can take pictures of different positions in the patient's oral cavity through the expansion gap between the bow arms 1. Since the medical camera 15 is only hung on the side of the bow arm 1 through the wheel axle 16, it can be directly removed after the oral examination is completed and the data can be transmitted through the internal USB interface. It can also be connected to a computer through the USB interface for real-time viewing. To facilitate the use of the medical camera 15, a touch control panel 18 is provided on its outward-facing side. The specific operation steps are as follows: The operator connects the USB data cable to the medical camera 15 and the other end to the computer. Then, the operator selects the shooting area by pointing the lens of the medical camera 15. During this process, the image inside the patient's mouth is transmitted through the data cable and displayed in real time on the computer monitor until the shooting is completed.
[0028] A tongue depressor 13 is fixedly installed in the middle of the bow arm 1 on the other side (e.g. Figure 4 As shown), the tongue depressor 13 is fixed in position. During oral examination, the tongue depressor 13 is located below the patient's mouth. The patient needs to insert their tongue into the gap between the tongue depressor 13 and the bow arm 1 on that side.
[0029] To further improve the expansion stability of the bow arm 1, a coaxial arm 8 is rotatably installed on the side end of the integrated block 3, and insert rods 9 are rotatably installed on both sides of the end of the coaxial arm 8 (such as...). Figure 5 As shown), the insertion rod 9 can rotate with the support of the coaxial arm 8. The coaxial arm 8 obliquely passes through the two bow arms 1, and a spring 11 is sleeved on the outer periphery of the section through which it passes (as shown). Figure 3 As shown), the spring 11 will continuously apply preload pressure to the outside of the bow arm 1. That is to say, after the bow arm 1 loses the central thrust, it will maintain a posture of closing towards the center (as shown). Figure 7 (as shown) A sleeve 10 is fitted onto the part where the insertion rod 9 passes through the bow arm 1. The sleeve 10 helps the insertion rod 9 to slide within a small range inside the bow arm 1.
[0030] A supplementary light 12 for intraoral illumination is provided at the bottom of the coaxial arm 8 (e.g., ...). Figure 6 As shown, this allows the medical camera 15 to take clear photos without additional lighting, and also avoids the need to insert a light tube inside the mouth.
[0031] In this embodiment, the patient slowly opens their mouth by inserting their upper and lower teeth into the grooves of the support block 2. The medical staff expands the bow arm 1 by holding the push rod 5 and slowly applying a pushing force. The bow arm 1 is slowly pushed forward by the support of the long handle connecting rod 4 and the limiting of the secondary connecting rod 7. The patient inserts their tongue into the gap between the tongue depressor 13 and the bow arm 1 and keeps it still. When the patient's oral cavity is expanded to a sufficient extent for examination, the doctor holds the push rod 5 with one hand to keep the bow arm 1 expanded, while using the other hand to adjust the shooting range of the medical camera 15 and examine the patient's oral cavity by importing the image into the computer, until the shutter is controlled by lightly pressing the touch control panel 18 to take a picture. During the above process, the supplementary light 12 continuously illuminates the patient's oral cavity to ensure the clarity of the image. After the oral examination is completed, the doctor slowly releases the push rod 5, and the bow arm 1 slowly returns to its original position and closes due to the pressure of the spring 11.
[0032] Workflow and Principle: First, medical staff guide the patient to fix their upper and lower teeth in the concave arc-shaped rubber pad of the support block 2. Then, they apply pressure by holding the push rod 5 with one hand, distributing the pressure evenly to the integrated block 3 through the "U"-shaped frame 14, driving the long-handled connecting rod 4 to push the bow arm 1 outwards. At this time, the auxiliary connecting rod 7 inserts into the hollow structure of the long-handled connecting rod 4 to limit tail displacement, ensuring the smooth expansion of the bow arm 1. Simultaneously, the patient positions and fixes their tongue in the gap between the tongue depressor 13 and the bow arm 1. After expansion, the doctor provides illumination through the supplementary light 12 at the bottom of the coaxial arm 8 and adjusts the shooting angle of the medical camera 15 suspended by the wheel axle 16. The image is transmitted in real time to a computer monitor via a USB interface for observation; the touch control panel 18 controls the shutter to record the lesion. After the examination, the push rod 5 is released, and the spring 11 drives the bow arm 1 to automatically reset, achieving single-handed operation and safe reset throughout the process.
[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A pediatric oral tongue depressor device comprising two arches (1) and a brace (2) for expanding the oral cavity of a patient, characterized in that: An integrated block (3) and a connecting seat (6) for expansion connection are provided between the two bow arms (1). The connecting seat (6) and the side end of the support block (2) are rotatably provided with a long handle connecting rod (4) for initial transmission. When the integrated block (3) is continuously pushed to the side of the support block (2), the bow arm (1) and the support block (2) can be expanded by the lateral expansion of the long handle connecting rod (4). A secondary connecting rod (7) is rotatably provided between the bow arm (1) and the long handle connecting rod (4) to limit the expansion stroke of the bow arm (1). A groove (17) is provided in the middle of the bow arm (1).
2. A pediatric oral tongue depressor according to claim 1, wherein: The support block (2) adopts a concave arc surface structure and is covered with a layer of rubber pad to prevent injury to the patient's lips. During the examination, the patient's upper and lower teeth are embedded in the concave groove to prevent displacement.
3. A pediatric oral tongue depressor according to claim 1, wherein: The bow arm (1) has an irregular curved arc structure, and its end is fitted with a support block (2) by a tiny bolt. The connecting seat (6) and the integrated block (3) are connected in the same way.
4. A pediatric oral tongue depressor according to claim 1, wherein: The long-handled connecting rod (4) has a hollowed-out strip-shaped groove structure in the middle. The secondary connecting rod (7) is inserted into the hollowed-out groove through the shaft at the end, and the strip-shaped groove serves as an additional offset space.
5. A pediatric oral tongue depressor according to claim 1, wherein: A push rod (5) for gripping is provided on one side of the integrated block (3), and a "U"-shaped frame (14) is provided between the push rod (5) and the integrated block (3). The "U"-shaped frame (14) makes the thrust transmission more uniform by changing the single transmission path of the thrust to two-point pressure, and prevents the pressure on the two bow arms (1) from being different.
6. A pediatric oral tongue depressor according to claim 1, wherein: A medical camera (15) for taking pictures of the patient's mouth is hung in the middle of the bow arm (1). A wheel axle (16) is set on the side end of the medical camera (15). The wheel axle (16) is hung in the groove (17) in the middle of the bow arm (1) through the central axis and is supported by the wheel axle (16) to achieve multi-angle rotation. The medical camera (15) can be directly removed and data can be transmitted through the internal USB interface. It can also be connected to a computer via the USB interface to view data in real time.
7. A pediatric oral tongue depressor according to claim 1, wherein: A tongue depressor (13) is fixedly installed in the middle of the bow arm (1). The position of the tongue depressor (13) is fixed. During oral examination, the tongue depressor (13) is located below the patient's mouth. The patient needs to insert his tongue into the gap between the tongue depressor (13) and the bow arm (1) on that side.
8. A pediatric oral tongue depressor according to claim 1, wherein: A coaxial arm (8) is rotatably provided on the side end of the integrated block (3), and insert rods (9) are rotatably provided on both sides of the end of the coaxial arm (8). The insert rods (9) can be rotated by the support of the coaxial arm (8). The coaxial arm (8) obliquely passes through the two bow arms (1), and a spring (11) is sleeved on the periphery of the section that passes through. The spring (11) will continuously apply pre-tightening pressure to the outside of the bow arm (1) and make the bow arm (1) maintain the posture of closing towards the center after losing the middle thrust. The bottom of the coaxial arm (8) is provided with a supplementary light (12) for realizing intraoral lighting.
9. A paediatric oral tongue depressor according to claim 8, wherein: A sleeve (10) is fitted around the insertion rod (9) where it passes through the bow arm (1) to help the insertion rod (9) slide within a small range inside the bow arm (1).