Adjustable orthodontic mouth gag
By employing a longitudinally sliding adjustment structure in the orthodontic mouth opener, the stability and operational inconvenience caused by lateral adjustment in existing technologies are solved, realizing a multi-purpose stable mouth opener design suitable for various oral medical procedures.
Patent Information
- Application Number
- CN202610051520.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-02-27
AI Technical Summary
The existing orthodontic mouth opener has a large lateral adjustment structure, resulting in high stability after adjustment. However, the adjustment screw is located horizontally in the middle of the opening, which is inconvenient for medical operation.
The lower and upper support seats, which employ left and right opening devices, are longitudinally slidably connected by a first adjusting plate, a second adjusting plate, a height adjusting frame, and an adjusting screw. The distance between the lower and upper support seats is adjusted by rotating the adjusting screw, and sliding guidance is provided by a limiting post and a limiting slot to ensure stability and ease of operation.
It achieves adaptive adjustment for different opening sizes, maintains the overall curvature stability of the mouth opener, facilitates medical operation, and avoids interference with the oral cavity caused by lateral adjustment.
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Figure CN121570286A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of oral orthodontic mouth openers, and specifically relates to an adjustable oral orthodontic mouth opener. BACKGROUND
[0002] The mouth opener, also known as a mouth stretcher, is a device used to open the mouth when a patient is having difficulty breathing or is unconscious and needs to have their stomach washed. The mouth opener body is in the shape of a "U", and two handles are fixed to the two ends of the mouth opener body. The disposable mouth opener with this structure is simple in structure, easy to operate, and low in cost, and is suitable for use in various dental medical institutions, especially in dental medical operations. The existing oral orthodontic mouth opener has a fixed size, and is only suitable for use by a fixed population, so the range of use is limited.
[0003] The prior art patent application No. 202122754662.6 discloses an oral orthodontic mouth opener, which comprises a support frame. By rotating a nut, a screw rod is driven to rotate, so that the one end of the screw rod presses the fixed seat to move to one side, thereby driving the left mouth opener and the right mouth opener to move to both sides, facilitating the expansion of the patient's mouth for medical personnel to check and handle. The cooperation of the fixed seat, the screw rod and the threaded sleeve facilitates medical personnel to adjust the distance between the left mouth opener and the right mouth opener, thereby expanding the applicable population of the mouth opener. By pulling and pulling out the handle outward, the pull rod drives the left mouth opener and the right mouth opener to move to both sides and is removed, facilitating the removal of the left mouth opener and the right mouth opener. However, the structure for adjusting the distance between the left mouth opener and the right mouth opener is large, resulting in high stability of the adjusted structure, and the adjusting screw rod is transversely arranged in the middle of the opening, which is not convenient for medical operation on the opened mouth. SUMMARY
[0004] The present application aims to provide an adjustable oral orthodontic mouth opener to solve the problem that the structure for adjusting the distance between the left mouth opener and the right mouth opener is large, resulting in high stability of the adjusted structure, and the adjusting screw rod is transversely arranged in the middle of the opening, which is not convenient for medical operation on the opened mouth.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an adjustable oral orthodontic mouth opener, comprising a left mouth opener and a right mouth opener, wherein the left mouth opener and the right mouth opener each comprise a lower mouth opening support seat and an upper mouth opening support seat, the inner sides of the lower mouth opening support seat and the upper mouth opening support seat are provided with lip limiting grooves, one side of the lower mouth opening support seat is provided with a first adjusting plate, one side of the upper mouth opening support seat is provided with a second adjusting plate, one side of the second adjusting plate is provided with a height adjusting frame which is slidably arranged with the first adjusting plate, and one end of the height adjusting frame is threadedly connected with an adjusting screw rod on one side of the first adjusting plate.
[0006] Further, the lower support seat and the upper support seat are arranged in an arc shape, and the lower support seat and the upper support seat are arranged in a C-shaped seat when they are connected.
[0007] Further, the first adjusting plate is internally provided with a limiting sliding hole slidably arranged with a height adjusting frame, and a locking bolt is threadedly arranged on the side wall of the limiting sliding hole.
[0008] Further, the height adjusting frame is arranged in a U-shaped support, and a threaded hole is arranged at the lower end of the height adjusting frame and threadedly connected with an adjusting screw rod, one end of the adjusting screw rod is vertically rotatably arranged on one side of the first adjusting plate through a bearing, and the height adjusting frame can be adjusted in lifting by rotating the adjusting screw rod, so that the distance between the lower support seat and the upper support seat can be adjusted, thereby meeting the requirements of different opening sizes of the orthodontic opening, and the longitudinal adjusting structure is compact, the stability of the adjusted structure is high, and the distance between the left opening device and the right opening device will not change the use arc of the whole opening device, so that the original arc support opening can be better maintained.
[0009] Further, the first stable support plate is arranged between the two lower support seats, and the second stable support plate is arranged between the two upper support seats, the upper side of the second stable support plate is provided with a groove, and the first stable support plate and the second stable support plate are longitudinally arranged with a certain arc, so as to make the left opening device and the right opening device have a certain inclined arc, and better clamped on the two sides of the lips.
[0010] Further, the inner limiting seat is arranged on the inner side of the lower support seat and the upper support seat, the limiting column is arranged on the inner limiting seat of the lower support seat, the width of the inner limiting seat is smaller than the width of the outer limiting seat of the support seat, and the limiting slot is arranged on the lower side of the inner limiting seat of the upper support seat and matched with the limiting column, so that the limiting column and the limiting slot can guide the sliding of the lower support seat and the upper support seat when they are adjusted in up and down movement, and the structural stability of the movement and adjustment of the lower support seat and the upper support seat is improved.
[0011] An orthodontic opening method, characterized in that an adjustable orthodontic opening device according to any one of claims 1-7 is used, comprising the following steps: S1, rotating the adjusting screw rod, adjusting the distance between the lower support seat and the upper support seat to the minimum state (initial closed state), and putting it into the patient's mouth; at the same time, confirming that the limiting column is aligned with the limiting slot to ensure smooth subsequent adjustment; S2, the left opening device and the right opening device are respectively arranged corresponding to the left side and the right side of the patient's mouth, the lower support seat is attached to the inner side of the lower lip of the patient, the upper support seat is attached to the inner side of the upper lip, the lip is completely embedded in the lip limiting clamping groove, and the attachment is stable and does not press the mucosa of the lip. S3. Adjust the position of the left and right mouth openers so that the first and second stabilizing support plates fit the inner sides of the cheeks on both sides of the mouth. Use the natural curvature of the support plates to adapt to the facial contours and avoid instrument displacement. S4. Medical staff hold the end of the adjusting screw and slowly rotate it (clockwise rotation increases the gap, counterclockwise rotation decreases the gap). Through the sliding cooperation between the height adjustment frame and the first adjustment plate, the upper support seat is raised and lowered relative to the lower support seat, gradually expanding the oral cavity opening. S5. During the adjustment process, observe whether the limiting post slides smoothly along the limiting slot to ensure that the lower support seat and the upper support seat rise and fall vertically without tilting, so as to avoid compressing the teeth or gums. S6. According to the orthodontic operation requirements (such as examination, treatment, instrument insertion space, etc.), stop rotating the adjusting screw when the opening width reaches the required size; S7. Tighten the locking bolts on the first adjustment plate until the height adjustment frame is fully engaged, fixing the current opening spacing and preventing the instruments from loosening or the opening size from changing during treatment.
[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a left and right mouth opener, each comprising a lower support seat and an upper support seat. The lower and upper support seats are slidably connected via a first adjusting plate, a second adjusting plate, a height adjusting bracket, and an adjusting screw. This allows the height adjusting bracket to be raised or lowered by rotating the adjusting screw, thereby adjusting the distance between the lower and upper support seats. This caters to the needs of orthodontic mouth openings of different sizes. Furthermore, the longitudinal adjustment structure is compact, and the adjusted structure has high stability. The adjusting screw is longitudinally positioned on both sides of the lips, so it does not interfere with medical operations on the opened mouth. Compared to lateral adjustment of the distance between the left and right mouth openers, this invention does not change the overall curvature of the mouth opener, facilitating better maintenance of the original curvature for mouth opening.
[0013] 2. The present invention utilizes an inner limiting seat provided on the inner side of the lower support seat and the upper support seat. The inner limiting seat of the lower support seat is provided with a limiting post. The width of the inner limiting seat is smaller than the width of the outer limiting seat of the support seat. The lower side of the inner limiting seat of the upper support seat is provided with a limiting slot that is inserted and matched with the limiting post. The limiting post and the limiting slot can be used to slide and guide the lower support seat and the upper support seat when they move up and down, which is beneficial to improving the structural stability of the movement adjustment of the lower support seat and the upper support seat. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall first-view structure of the present invention; Figure 2 The overall second perspective view of the application is shown in the figure; Figure 3 The lower support seat structure of the application is shown in the figure; Figure 4 The upper support seat structure of the application is shown in the figure.
[0015] In the figure: 1, lower support seat; 2, upper support seat; 3, inner limiting seat; 4, second stable support plate; 5, groove; 6, first adjusting plate; 7, second adjusting plate; 8, height adjusting frame; 9, adjusting screw; 10, locking bolt; 11, lip limiting slot; 12, first stable support plate; 13, limiting sliding hole; 14, limiting column; 15, limiting slot. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.
[0017] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 In the embodiments of the application, an adjustable oral orthodontic mouth opener includes a left mouth opener and a right mouth opener. The left mouth opener and the right mouth opener each include a lower support seat 1 and an upper support seat 2. The lower support seat 1 and the upper support seat 2 are arranged as arc-shaped support seats, and are arranged as a C-shaped seat when the lower support seat 1 and the upper support seat 2 are butted. The inner sides of the lower support seat 1 and the upper support seat 2 are provided with lip limiting slots 11. One side of the lower support seat 1 is provided with a first adjusting plate 6. One side of the upper support seat 2 is provided with a second adjusting plate 7. One side of the second adjusting plate 7 is provided with a height adjusting frame 8 which is slidingly arranged with the first adjusting plate 6. One end of the height adjusting frame 8 is also threadedly connected with an adjusting screw 9 on one side of the first adjusting plate 6. The height adjusting frame 8 is arranged as a U-shaped support, and the lower end of the height adjusting frame 8 is provided with a threaded hole which is threadedly connected with the adjusting screw 9. One end of the adjusting screw 9 is vertically rotatably arranged on one side of the first adjusting plate 6 through a bearing, so that the height adjusting frame 8 can be adjusted in lifting by rotating the adjusting screw 9, thereby adjusting the distance between the lower support seat 1 and the upper support seat 2, and further meeting the requirements of different oral orthodontic mouth opening sizes. Moreover, the longitudinal adjusting structure is compact, the adjusted structure has high stability, and the distance between the left mouth opener and the right mouth opener will not change the overall use arc of the mouth opener, so that the original arc support opening can be better maintained.
[0018] As Figure 1 andFigure 3 As shown, a limiting sliding hole 13 is also arranged inside the first adjusting plate 6 and is slidingly arranged with the height adjusting frame 8, and the side wall of the limiting sliding hole 13 is threadedly provided with a locking bolt 10, so as to facilitate locking of the height adjusting frame 8 after movement adjustment.
[0019] As shown, Figure 1 and Figure 2 As shown, a first stable supporting plate 12 is arranged between the two lower supporting mouth seats 1, and a second stable supporting plate 4 is arranged between the two upper supporting mouth seats 2, the upper side of the second stable supporting plate 4 is provided with a groove 5, and the first stable supporting plate 12 and the second stable supporting plate 4 are longitudinally arranged with a certain arc, so as to facilitate the left mouth opener and the right mouth opener to have a certain inclination arc and be better clamped on both sides of the lips.
[0020] As shown, Figure 3 and Figure 4 As shown, in order to improve the structural stability of the movement adjustment of the lower supporting mouth seat 1 and the upper supporting mouth seat 2, an inner limiting seat 3 is arranged inside the lower supporting mouth seat 1 and the upper supporting mouth seat 2, the inner limiting seat 3 of the lower supporting mouth seat 1 is provided with a limiting column 14, the width of the inner limiting seat 3 is smaller than the width of the outer limiting seat of the supporting mouth seat, and the lower side of the inner limiting seat 3 of the upper supporting mouth seat 2 is provided with a limiting slot 15 which is inserted and matched with the limiting column 14, the limiting column 14 and the limiting slot 15 can guide the sliding of the lower supporting mouth seat 1 and the upper supporting mouth seat 2 during the up-down movement adjustment, which is beneficial to improve the structural stability of the movement adjustment of the lower supporting mouth seat 1 and the upper supporting mouth seat 2.
[0021] An oral orthodontic opening method, comprising the following steps: I. Preparation before opening Instrument inspection: confirm that the lower supporting mouth seat 1 and the upper supporting mouth seat 2 of the left mouth opener and the right mouth opener are not damaged or deformed, and the lip limiting clamping groove 11 is smooth without burrs; check that the limiting sliding hole 13 of the first adjusting plate 6, the height adjusting frame 8, the adjusting screw 9 and the locking bolt 10 are smoothly movable without jamming or loosening.
[0022] Initial adjustment: rotate the adjusting screw 9 to adjust the distance between the lower supporting mouth seat 1 and the upper supporting mouth seat 2 to the minimum initial closed state, so as to facilitate the placement into the patient's oral cavity; at the same time, confirm that the limiting column 14 is aligned with the limiting slot 15 to ensure smooth subsequent adjustment.
[0023] Patient cooperation: let the patient keep the head fixed, relax the facial muscles, and slightly open the mouth to facilitate the placement of the instrument, so as to avoid the difficulty in operation caused by the tension of the masseter muscle.
[0024] II. Opening device placement steps Positioning and fitting: respectively correspond the left mouth opener and the right mouth opener to the left side and the right side of the patient's oral cavity, so that the lower supporting mouth seat 1 is fitted to the inner side of the lower lip of the patient and the upper supporting mouth seat 2 is fitted to the inner side of the upper lip, the lips are completely embedded in the lip limiting clamping groove 11, and it is ensured that the fitting is stable and does not press the lip mucosa.
[0025] Overall calibration: Adjust the position of the left and right openers so that the first and second stable support plates 12 and 4 fit the inside of the cheeks on both sides of the mouth. Use the natural curvature of the support plates to adapt to the facial contours and avoid the displacement of the device.
[0026] Three, opening size adjustment steps Progressive adjustment: Hold the end of the adjustment screw 9 with the medical staff, slowly rotate clockwise to increase the distance, rotate counterclockwise to reduce the distance, and through the sliding cooperation of the height adjustment frame 8 and the first adjustment plate 6, drive the upper support seat 2 to rise and fall relative to the lower support seat 1, gradually expand the opening amplitude of the oral cavity.
[0027] Guiding confirmation: Observe whether the limiting column 14 slides smoothly along the limiting slot 15 during adjustment to ensure that the lower support seat 1 and the upper support seat 2 vertically rise and fall without tilting, avoiding pressing the teeth or gums.
[0028] Stop fitting: According to the needs of orthodontic operation such as inspection, treatment, instrument insertion space, etc., stop rotating the adjustment screw 9 when the opening amplitude reaches the required size.
[0029] Locking: Tighten the locking bolt 10 on the first adjustment plate 6 until the height adjustment frame 8 is tightly pressed, fix the current opening distance, and prevent the device from loosening or the opening size from changing during treatment.
[0030] Four, post-opening maintenance and precautions Position monitoring: Regularly check the position of the mouth opener during treatment to ensure that the lips are not separated from the limiting slot 11 and the support plate is not displaced, avoiding loosening of the device due to slight movement of the patient.
[0031] Comfort adjustment: If the patient experiences lip compression or discomfort, you can fine-tune the adjustment screw 9, with a fine-tuning range of 1-2mm, taking into account the treatment needs and patient tolerance.
[0032] Device removal: After treatment, loosen the locking bolt 10, then reverse the rotation of the adjustment screw 9 to reduce the distance between the lower support seat and the upper support seat, and gently remove the left and right openers from both sides of the oral cavity to avoid pulling the lips.
[0033] Applicable restrictions: The opening amplitude needs to be reasonably controlled according to the patient's age, oral cavity size and treatment needs to avoid excessive opening and cause temporomandibular joint injury; children patients need to be used under the supervision of adults, and the adjustment process needs to be slower and gentler.
[0034] This method relies on the longitudinal adjustment structure of the device, which not only ensures the precise control of the opening size, but also avoids the blocking of the adjustment components inside the oral cavity, adapts to various operation scenarios in orthodontic treatment, and improves the safety and stability of the opening process through the limiting and stable structure.
[0035] The working principle and use process of the present application: when in use, the left and right openers each include a lower support seat 1 and an upper support seat 2, and the lower support seat 1 and the upper support seat 2 are slidably connected through a first adjusting plate 6, a second adjusting plate 7, a height adjusting frame 8 and an adjusting screw 9, so that the height adjusting frame 8 can be adjusted up and down by rotating the adjusting screw 9, thereby adjusting the distance between the lower support seat 1 and the upper support seat 2, and further meeting the needs of different opening sizes of the oral orthodontic opening, and the longitudinal adjusting structure is compact, the stability of the adjusted structure is higher, and the distance between the left and right openers will not change the overall use arc of the opener, which is convenient for better maintaining the original arc support opening.
[0036] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An adjustable orthodontic mouth opener, comprising a left mouth opener and a right mouth opener, characterized in that: Both the left and right mouth openers include a lower support seat (1) and an upper support seat (2). The lower support seat (1) and the upper support seat (2) are provided with lip limiting grooves (11) on their inner sides. The lower support seat (1) is provided with a first adjusting plate (6) on one side, and the upper support seat (2) is provided with a second adjusting plate (7) on one side. The second adjusting plate (7) is provided with a height adjusting bracket (8) that is slidably disposed with the first adjusting plate (6) on one side. One end of the height adjusting bracket (8) is also threadedly connected to the adjusting screw (9) on one side of the first adjusting plate (6).
2. The adjustable orthodontic mouth opener according to claim 1, characterized in that: The lower support seat (1) and the upper support seat (2) are configured as arc-shaped support seats, and the lower support seat (1) and the upper support seat (2) are configured as C-shaped seats when they are connected.
3. An adjustable orthodontic mouth opener according to claim 1, characterized in that: The first adjusting plate (6) is provided with a limiting sliding hole (13) that is slidably disposed with the height adjusting frame (8), and the side wall of the limiting sliding hole (13) is provided with a locking bolt (10).
4. An adjustable orthodontic mouth opener according to claim 3, characterized in that: The height adjustment bracket (8) is configured as a U-shaped bracket, and the lower end of the height adjustment bracket (8) is provided with a threaded hole that is threadedly connected to the adjustment screw (9). One end of the adjustment screw (9) is vertically rotated and set on one side of the first adjustment plate (6) through a bearing.
5. An adjustable orthodontic mouth opener according to claim 1, characterized in that: A first stabilizing support plate (12) is provided between the two lower support seats (1), and a second stabilizing support plate (4) is provided between the two upper support seats (2).
6. An adjustable orthodontic mouth opener according to claim 1, characterized in that: The lower support seat (1) and the upper support seat (2) are provided with an inner limiting seat (3) on their inner sides. The width of the inner limiting seat (3) is smaller than the width of the outer limiting seat of the support seat.
7. An adjustable orthodontic mouth opener according to claim 1, characterized in that: The lower support seat (1) has a limiting post (14) on its inner limiting seat (3), and the upper support seat (2) has a limiting slot (15) on its lower side that is engaged with the limiting post (14).
8. A method for orthodontic orthodontic opening, characterized in that: Using an adjustable orthodontic mouth opener according to any one of claims 1-7, the procedure includes the following steps: S1. Rotate the adjusting screw (9) to adjust the distance between the lower support seat (1) and the upper support seat (2) to the minimum state, so as to facilitate insertion into the patient's oral cavity; at the same time, confirm that the limiting post (14) and the limiting slot (15) are aligned to ensure smooth subsequent adjustment; S2. Place the left mouth opener and the right mouth opener on the left and right sides of the patient's mouth respectively, so that the lower mouth opener (1) fits against the inside of the patient's lower lip and the upper mouth opener (2) fits against the inside of the upper lip. The lips are completely embedded in the lip limiting slot (11) to ensure a stable fit and without compressing the lip mucosa. S3. Adjust the position of the left and right mouth openers so that the first stabilizing support plate (12) and the second stabilizing support plate (4) fit the inner sides of the cheeks on both sides of the mouth and adapt to the facial contour using the natural curvature of the support plate. S4. Medical staff hold the end of the adjusting screw (9) and slowly rotate it. Through the sliding cooperation between the height adjusting bracket (8) and the first adjusting plate (6), the upper support seat (2) moves up and down relative to the lower support seat (1), gradually expanding the oral cavity opening range. S5. During the adjustment process, observe whether the limiting post (14) slides smoothly along the limiting slot (15) to ensure that the lower support seat (1) and the upper support seat (2) rise and fall vertically without tilting, and avoid compressing the teeth or gums. S6. According to the orthodontic operation requirements, stop rotating the adjusting screw (9) when the opening width reaches the required size. S7. Tighten the locking bolt (10) on the first adjusting plate (6) until the height adjusting bracket (8) is tightened to fix the current opening spacing.
Citation Information
Patent Citations
Orthodontic mouth gag
CN216257585U