Orthodontic appliance

By designing a transmission and cleaning mechanism, the fit and self-cleaning function of the orthodontic appliance are adjusted using the patient's biting force, solving the problems of appliance loosening and tooth cleaning in existing appliances, and reducing treatment costs and the risk of tooth damage.

CN116807648BActive Publication Date: 2026-07-10WUXI ZHENSI MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI ZHENSI MEDICAL TECH CO LTD
Filing Date
2023-07-11
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing orthodontic appliances are prone to loosening during use, require avoidance of biting hard foods, cannot be adjusted for fit on their own, and are difficult to clean the inside of the teeth, resulting in high treatment costs and an increased risk of tooth damage.

Method used

An orthodontic appliance comprising a transmission mechanism and a cleaning mechanism was designed. The fit between the anterior occlusal block and the outer wall of the tooth is adjusted by the patient's biting force, and the cleaning mechanism is used to achieve self-cleaning of the inner wall of the tooth, reducing the frequency of replacement and improving cleaning efficiency.

Benefits of technology

This approach reduces the frequency of appliance replacements without affecting treatment outcomes, lowers treatment costs, improves the cleaning effect on the inner surfaces of teeth, and enhances patient convenience.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN116807648B_ABST
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Abstract

The application discloses an orthodontic appliance and relates to the field of tooth correction, which comprises an appliance main body, a plurality of front bonding blocks, a plurality of brackets, a plurality of ligation wires and an arch wire, wherein each group of the front bonding blocks is bonded to the outside of a tooth, the brackets are fixed to the outside of the front bonding blocks, the ligation wires are connected to the inside of the brackets, and the arch wire is arranged on the inside of the ligation wires; one side of the appliance main body is provided with a transmission mechanism, the appliance main body is in transmission connection with the tooth through the transmission mechanism, and the upper side of the transmission mechanism is provided with a cleaning mechanism. The transmission mechanism comprises a sleeve rod, a limiting wheel, a rotating shaft and a stretching wire, so that the cost of replacing the appliance in a hospital can be reduced after the patient is treated for a period of time, and the cleaning mechanism comprises a second telescopic column, a spring telescopic column, a fixing shaft, a fixing rod and a cleaning block, so that the inner wall of the tooth can be cleaned.
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Description

Technical Field

[0001] This invention relates to the field of orthodontics, specifically orthodontic appliances. Background Technology

[0002] An orthodontic appliance is a device used to treat malocclusion. It can be called an orthodontic appliance. It can generate force, or the functional force of the masticatory muscles and perioral muscles. Through the appliance, the malformed jawbone, misaligned teeth and periodontal supporting tissues are changed to facilitate the normal growth and development of the dentofacial region. The appliance is usually a mechanical device that combines a flexible metal wire and brackets or a plastic base, and is worn in the mouth or on the maxillofacial region.

[0003] When orthodontic appliances are used, the front and back clasps, along with the shape of the appliance designed by the dentist based on the patient's periodontal condition, fix the teeth and, through long-term force, guide them to grow in the correct direction.

[0004] When using orthodontic appliances, the bands and brackets are bonded to the teeth with adhesive. The adhesive strength is not unlimited, and they may loosen under excessive external force. Therefore, patients should avoid biting hard foods (such as ribs, nuts, etc.) and sticky foods during the treatment period. After a period of treatment, patients need to go to the hospital to change or adjust the shape of the appliances to fit the teeth again for further treatment. The treatment time is also relatively long, which increases the treatment cost for patients. In addition, while the outer surface of the teeth can be cleaned with a toothbrush, the inner surface of the teeth cannot be cleaned due to some of the devices in the appliances, which can cause damage to the teeth. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide an orthodontic appliance to solve the technical problems mentioned in the background above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an orthodontic appliance, comprising an appliance body, the appliance body including multiple sets of front aligners, multiple sets of brackets, multiple sets of ligatures and archwires, wherein each set of front aligners is attached to the outer side of the teeth, the brackets are fixed to the outer side of the front aligners, the ligatures are connected to the inner side of the brackets, and the archwire is disposed on the inner side of the ligatures. A transmission mechanism is provided on one side of the appliance body, and the appliance body is connected to the teeth via the transmission mechanism. A cleaning mechanism is provided above the transmission mechanism.

[0007] By adopting the above technical solution, it is ensured that while the position of the teeth is corrected, after a certain period of treatment, the occlusal force causes the archwire to retract inward until the anterior clasp is once again attached to the outer wall of the tooth, thereby reducing the need to replace the orthodontic appliance.

[0008] The present invention is further configured such that the transmission mechanism is provided with a sleeve rod, a limiting wheel, a rotating shaft and a drawing wire, and the drawing wire is located inside the bow wire, and the limiting wheel is connected to the end of the drawing wire, and the connection is to the outside of the limiting wheel.

[0009] By adopting the above technical solution, it is ensured that when the fixed shaft moves downward, it drives the toothed plate at the end of the fixed shaft to mesh with the limiting wheel, causing the limiting wheel to rotate. The limiting wheel and the stretching wire are fixedly connected, so that the limiting wheel can wind up the stretching wire. This achieves the purpose of adjusting the fit between the anterior veneer and the outer wall of the tooth by the patient's own biting force.

[0010] The present invention is further configured such that a cleaning mechanism is provided above the transmission mechanism, and the cleaning mechanism includes a second telescopic column, a spring telescopic column, a fixed shaft, a fixed rod, and a cleaning block. The second telescopic column is fixed to the inner side of the sleeve rod, and the spring telescopic column is provided above the second telescopic column. The fixed shaft is provided at the top of the spring telescopic column, and the fixed rod is fixed on both sides of the fixed shaft. The cleaning block is provided at the end of the fixed rod.

[0011] By adopting the above technical solution, when the patient bites down, the fixed shaft moves downward. The fixed shaft and the fixed rod are fixedly installed, which causes the fixed rod to move downward. At the same time, the cleaning block moves downward and fits tightly against the inner wall of the tooth, so that the cleaning block cleans the inner wall of the tooth.

[0012] The present invention is further configured such that the limiting wheel includes a limiting groove, a first telescopic column and a fixing plate, wherein the limiting groove is disposed on the inner side of the limiting wheel, the first telescopic column is fixed to the inner side of the limiting groove, and the fixing plate is fixed to the end of the first telescopic column.

[0013] By adopting the above technical solution, when the fixed shaft moves downward, the rack at the end of the fixed shaft meshes with the limiting wheel, causing the limiting wheel to rotate counterclockwise, thereby completing the purpose of winding the drawing wire.

[0014] The present invention is further configured such that the fixing plate is disposed at equal angles on the outside of the limiting wheel, and there are six sets of fixing plates. The fixing plate and the limiting groove are fixedly installed. The width of the fixing plate is less than the length of the first telescopic column when compressed to the end. The fixing plate is made of soft material.

[0015] By adopting the above technical solution, the limiting wheel rotates counterclockwise through the meshing connection between the fixed shaft and the limiting wheel. At this time, the first telescopic column is at its maximum extension, so that the fixed plate will not bend. This drives the front contact block to fit against the outer wall of the teeth. When the transmission column resets, the fixed plate is subjected to a reverse force. At this time, the first telescopic column retracts, causing the fixed plate to bend inward and disconnect the meshing connection between the fixed plate and the toothed plate at the end of the fixed shaft, thus preventing the front contact block from resetting.

[0016] The invention is further configured such that the inner side of the sleeve rod is hollow, and the second telescopic column and the sleeve rod are fixedly installed. A through groove is provided on one side of the second telescopic column, and the depth of the through groove is greater than the telescopic height of the spring telescopic column.

[0017] By adopting the above technical solution, it is ensured that when the patient adjusts the fit of the anterior fitting block by biting force, the fixed shaft moves downward, the spring telescopic column retracts downward, and the toothed plate at the end of the fixed shaft completes the engagement connection with the limiting wheel through the through groove on the outside of the sleeve rod.

[0018] The present invention is further configured such that the degree of inclination of the cleaning block is consistent with the degree of inclination of the inner wall of the patient's tooth, the cleaning block is in close contact with the inner wall of the tooth, and the height of the cleaning block is equal to half the height of the tooth.

[0019] By adopting the above technical solution, it is ensured that when the patient loosens their bite force, the elasticity of the spring telescopic column causes the fixed axis to return to its original position. At this time, the cleaning block moves upward, thereby completing the secondary cleaning of the tooth wall.

[0020] The present invention is further configured such that an abutment plate is provided above the cleaning mechanism, and the abutment plate is made of a high-molecular non-toxic and corrosion-resistant material, and the abutment plate has good elasticity.

[0021] By adopting the above technical solution, it is ensured that the biting force when the patient is eating will not cause the cleaning mechanism to move downward, thus preventing the front acetylene block from adhering to the outer wall of the tooth. Only when the patient uses a biting force greater than the elasticity of the contact plate will the contact plate move downward, thereby completing the adjustment of the position of the front acetylene block.

[0022] In summary, the present invention has the following main beneficial effects:

[0023] 1. This invention, by setting up a transmission mechanism, includes a sleeve rod, a limiting wheel, a rotating shaft, and a tension wire. When the fixed shaft is subjected to a downward force, the toothed plate at the end of the transmission column engages with the limiting wheel, causing the limiting wheel to rotate. Through the fixed connection between the limiting wheel and the tension wire, the tension wire rotates, thereby causing the archwire to move towards the transmission mechanism until the front aligning block is once again aligned with the outer wall of the tooth. This reduces the cost of changing orthodontic appliances at the hospital after a period of treatment.

[0024] 2. The present invention provides a cleaning mechanism, including a second telescopic column, a spring telescopic column, a fixed shaft, a fixed rod, and a cleaning block. When the contact plate is subjected to force, the fixed shaft moves downward. Since the fixed shaft and the fixed rod are fixedly connected, the fixed rod moves downward until it drives the cleaning block to move downward, thereby cleaning the inner wall of the tooth. When the patient releases the biting force, the fixed shaft and the cleaning block move upward, thereby completing the purpose of cleaning the inside of the tooth again. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the orthodontic appliance of the present invention;

[0027] Figure 3 This is a schematic diagram of the transmission mechanism structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the limiting wheel structure of the present invention;

[0030] Figure 6 This is an enlarged structural diagram of point A in the present invention;

[0031] Figure 7 This is a magnified schematic diagram of section B of the present invention.

[0032] In the diagram: 1. Main body of the orthodontic appliance; 101. Front fitting block; 102. Bracket; 103. Ligating wire; 104. Archwire; 2. Transmission mechanism; 201. Sleeve rod; 202. Limiting wheel; 2021. Limiting groove; 2022. First telescopic post; 2023. Fixing plate; 203. Rotating shaft; 204. Tensioning wire; 3. Cleaning mechanism; 301. Second telescopic post; 302. Spring telescopic post; 303. Fixing shaft; 304. Fixing rod; 305. Cleaning block; 4. Contact plate; 5. Fixing post; 6. Rear fitting plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of the present invention will now be described.

[0035] The orthodontic appliance, as shown in the figure, includes an appliance body 1. The appliance body 1 includes multiple sets of front aligners 101, multiple sets of brackets 102, multiple sets of ligatures 103, and archwires 104. Each set of front aligners 101 is attached to the outer side of the teeth. The brackets 102 are fixed to the outer side of the front aligners 101. The ligatures 103 are connected to the inner side of the brackets 102, and the archwires 104 are located inside the ligatures 103. A transmission mechanism 2 is provided on one side of the appliance body 1, and the appliance body 1 is connected to the teeth through the transmission mechanism 2. A cleaning mechanism 3 is provided above the transmission mechanism 2.

[0036] Please see Figure 3 , Figure 4 and Figure 7 The transmission mechanism 2 is equipped with a sleeve 201, a limiting wheel 202, a rotating shaft 203, and a tension wire 204. The tension wire 204 is located inside the archwire 104, and the limiting wheel 202 is connected to the end of the tension wire 204. The rotating shaft 203 is connected to the outside of the limiting wheel 202, ensuring that when the fixed shaft 303 moves downward, it drives the toothed plate at the end of the fixed shaft 303 to mesh with the limiting wheel 202, causing the limiting wheel 202 to rotate. The limiting wheel 202 and the tension wire 204 are fixedly connected, so that the limiting wheel 202 can wind up the tension wire 204. This achieves the purpose of adjusting the fit between the front veneer and the outer wall of the tooth by the patient's own biting force.

[0037] Please see Figure 4 and Figure 7 A cleaning mechanism 3 is provided above the transmission mechanism 2. The cleaning mechanism 3 includes a second telescopic column 301, a spring telescopic column 302, a fixed shaft 303, a fixed rod 304, and a cleaning block 305. The second telescopic column 301 is fixed to the inner side of the sleeve rod 201, and the spring telescopic column 302 is located above the second telescopic column 301. The fixed shaft 303 is located at the top of the spring telescopic column 302, and the fixed rod 304 is fixed to both sides of the fixed shaft 303. The cleaning block 305 is located at the end of the fixed rod 304. When the patient bites, the fixed shaft 303 moves downward. Due to the fixed installation structure between the fixed shaft 303 and the fixed rod 304, the fixed rod 304 moves downward, and the cleaning block 305 moves downward at the same time. The cleaning block 305 fits tightly against the inner wall of the tooth, so that the cleaning block 305 cleans the inner wall of the tooth.

[0038] Please see Figure 5 and Figure 7 The limiting wheel 202 includes a limiting groove 2021, a first telescopic column 2022, and a fixing plate 2023. The limiting groove 2021 is located inside the limiting wheel 202. The first telescopic column 2022 is fixed inside the limiting groove 2021, and the fixing plate 2023 is fixed to the end of the first telescopic column 2022. When the fixing shaft 303 moves downward, the rack at the end of the fixing shaft 303 meshes with the limiting wheel 202, causing the limiting wheel 202 to rotate counterclockwise, thereby completing the purpose of winding the drawing wire 204.

[0039] Please see Figure 5 The fixing plate 2023 is set at equal angles on the outside of the limiting wheel 202, and there are six sets of fixing plates 2023. The fixing plate 2023 and the limiting groove 2021 are fixedly installed. The width of the fixing plate 2023 is less than the length of the first telescopic column 2022 when compressed to the end. The fixing plate 2023 is made of soft material. The limiting wheel rotates counterclockwise through the meshing connection between the fixing shaft 303 and the limiting wheel 202. At this time, the first telescopic column 2022 is at its maximum extension, so that the fixing plate 2023 will not bend. This drives the front contact block to fit against the outer wall of the teeth. When the transmission column is reset, the fixing plate 2023 is subjected to a reverse force. At this time, the first telescopic column 2022 retracts, causing the fixing plate 2023 to bend inward, breaking the meshing connection between the fixing plate 2023 and the toothed plate at the end of the fixing shaft 303, thus preventing the front contact block from resetting.

[0040] Please see Figure 5 and Figure 7 The inner side of the sleeve rod 201 is hollow, and the second telescopic column 301 and the sleeve rod 201 are fixedly installed. A through groove is provided on one side of the second telescopic column 301, and the depth of the through groove is greater than the telescopic height of the spring telescopic column 302. This ensures that when the patient adjusts the fit of the front fitting block by biting force, the fixed shaft 303 moves downward. At this time, the spring telescopic column 302 retracts downward, and the toothed plate at the end of the fixed shaft 303 completes the engagement connection with the limiting wheel 202 through the through groove on the outside of the sleeve rod 201.

[0041] Please see Figure 1 and Figure 4 The tilt of the cleaning block 305 is consistent with the tilt of the inner wall of the patient's tooth, and the cleaning block 305 fits tightly against the inner wall of the tooth. The height of the cleaning block 305 is equal to half the height of the tooth, which ensures that when the patient releases the biting force, the elastic force of the spring telescopic column 302 causes the fixed shaft 303 to return to its original position. At this time, the cleaning block 305 moves upward, thereby completing the effect of secondary cleaning of the inner wall of the tooth.

[0042] Please see Figure 4 The cleaning mechanism 3 is equipped with an abutment plate 4 above it. The abutment plate 4 is made of a high-polymer non-toxic and corrosion-resistant material and has good elasticity. This ensures that the biting force of the patient when eating will not cause the cleaning mechanism 3 to move downward, thus preventing the front aligning block 101 from adhering to the outer wall of the tooth. Only when the patient uses a biting force greater than the elasticity of the abutment plate 4 will the abutment plate 4 move downward, thereby adjusting the position of the front aligning block 101.

[0043] The working principle of this invention is as follows: When a patient needs to use an orthodontic appliance, the front aligner 101 is first attached to the outer side of the teeth. The archwire 104 is passed through the annular hole of the ligature wire 103, and the tension wire 204 is passed through the gap between the teeth to fix the position of the teeth. The cleaning mechanism 3 is fixed above the transmission mechanism 2. After the patient has undergone a period of orthodontic treatment, the teeth are clenched. At this time, the upper contact plate 4 and the lower contact plate 4 fixed above the cleaning mechanism 3 are attached. The material of the contact plate 4 is elastic, which allows the fixing shaft 303 to move downward. The toothed plate at the end of the fixing shaft 303 and the limiting plate are then engaged. The meshing connection between wheels 202 causes the limiting wheel 202 to rotate counterclockwise. The fixing plate 2023 is made of a soft material. When the limiting wheel 202 rotates counterclockwise, the first telescopic column 2022 is in its maximum extended state, straightening the fixing plate 2023 and ensuring meshing with the toothed plate at the end of the fixing shaft 303. The limiting wheel 202 is fixedly connected to the rotating shaft 203, causing the rotating shaft 203 to rotate. Furthermore, the fixed connection between the limiting wheel 202 and the drawing wire 204 winds up the drawing wire 204, causing it to move inward. When the archwire 104 is tightened, the front clasp block 101 is re-attached to the outer wall of the tooth. When the patient clenches their teeth, the abutment plate 4 moves towards the cleaning mechanism 3, causing the fixed shaft 303 to move downwards. The fixed shaft 303 is fixedly connected to the fixed rod 304, causing the fixed rod 304 to move the cleaning block 305 along the inner wall of the tooth, thereby cleaning the inner wall of the tooth. When the patient releases their teeth, the elasticity of the spring telescopic column 302 causes the fixed shaft 303 to move upwards, thereby moving the abutment plate 4 upwards, thus cleaning the inner wall of the tooth again. The purpose is to prevent the fixed shaft 303 from moving upward when the contact plate 4 moves upward. Since the toothed plate at the end of the fixed shaft 303 is meshed with the limiting wheel 202, when the limiting wheel 202 is under force, the first telescopic column 2022 acts as the fixing plate 2023, which is made of elastic material, causing the fixing plate 2023 to bend downward and the first telescopic column 2022 to retract inward. When the toothed plate at the end of the fixed shaft 303 meshes with the limiting wheel 202, the limiting wheel 202 cannot rotate clockwise, thus preventing the bowwire 104 from springing back and reducing the cost of replacing the orthodontic appliance at the hospital.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An orthodontic appliance, comprising an appliance body (1), characterized in that: The main body (1) of the orthodontic appliance includes multiple sets of front clasps (101), multiple sets of brackets (102), multiple sets of ligatures (103), and archwires (104). Each set of front clasps (101) is fitted to the outer side of the teeth, the brackets (102) are fixed to the outer side of the front clasps (101), the ligatures (103) are connected to the inner side of the brackets (102), and the archwires (104) are located inside the ligatures (103). A transmission mechanism (2) is provided on one side of the main body (1), and the main body (1) is connected to the teeth via the transmission mechanism (2). A cleaning mechanism (3) is provided above the transmission mechanism (2). The transmission mechanism (2) is provided with a sleeve rod (201), a limiting wheel (202), a rotating shaft (203), and a drawing wire (204). The drawing wire (204) is located inside the bow wire (104), and the limiting wheel (202) is connected to the end of the drawing wire (204). The rotating shaft (203) is connected to the outside of the limiting wheel (202). The cleaning mechanism (3) is provided above the transmission mechanism (2). The cleaning mechanism (3) includes a second telescopic column (301), a spring telescopic column (302), a fixed shaft (303), and a fixed... The rod (304) and cleaning block (305) are provided. The second telescopic column (301) is fixed to the inner side of the sleeve rod (201), and the spring telescopic column (302) is located above the second telescopic column (301). The fixed shaft (303) is located at the top of the spring telescopic column (302), and the fixed rod (304) is fixed to both sides of the fixed shaft (303). The cleaning block (305) is located at the end of the fixed rod (304). The limiting wheel (202) includes a limiting groove (2021), a first telescopic column (2022), and a fixing plate (2023). The limiting groove (2021) is located at the bottom of the sleeve rod (2023). The first telescopic column (2022) is fixed to the inner side of the limiting groove (2021), and the fixing plate (2023) is fixed to the end of the first telescopic column (2022). The fixing plate (2023) is set at equal angles on the outer side of the limiting wheel (202), and there are six sets of fixing plates (2023). The fixing plate (2023) and the limiting groove (2021) are fixedly installed. The width of the fixing plate (2023) is less than the length of the first telescopic column (2022) compressed to the end. The fixing plate (2023) is made of soft material.

2. The orthodontic appliance according to claim 1, characterized in that: The inner side of the sleeve rod (201) is hollow, and the second telescopic column (301) and the sleeve rod (201) are fixedly installed. A through groove is provided on one side of the second telescopic column (301), and the depth of the through groove is greater than the telescopic height of the spring telescopic column (302).

3. The orthodontic appliance according to claim 2, characterized in that: The cleaning block (305) is tilted at the same angle as the inner wall of the patient's tooth, and the cleaning block (305) fits tightly against the inner wall of the tooth, and the height of the cleaning block (305) is equal to half the height of the tooth.

4. The orthodontic appliance according to claim 3, characterized in that: The cleaning mechanism (3) is provided with a contact plate (4) above it, and the material of the contact plate (4) is a high-molecular non-toxic anti-corrosion material, and the contact plate (4) has good elasticity.