A multi-segmented orthodontic archwire device for tooth alignment

Abstract

The application relates to the technical field of tooth correction, in particular to a multi-section orthodontic arch wire device for tooth correction, which comprises a sectional arch wire assembly and a connecting adjusting assembly. The sectional arch wire assembly is composed of multiple independent arch wire sections, and the detachable connection and angle adjustment are realized through the connecting adjusting assembly; the connecting adjusting assembly comprises a threaded sleeve, an elastic support and a limiting mechanism, and is used for controlling the distance between the arch wire sections and the correction force distribution. The elastic support can be replaced to adapt to the requirements of different correction stages, and the connecting end head is designed to allow free swinging, thereby improving the adaptability. Through the sectional arch wire assembly and the connecting adjusting assembly, the flexibility adjustment of the orthodontic arch wire device in different correction stages is realized. Specifically, the design of the sectional arch wire assembly allows the selection of arch wire sections with different material hardness and elastic modulus according to the specific conditions of teeth, so as to meet the correction requirements in different stages.

Description

Technical Field

[0001] This utility model belongs to the field of orthodontic technology, specifically a multi-segment orthodontic archwire device for teeth straightening. Background Technology

[0002] In orthodontic treatment, orthodontic archwires are one of the key components for achieving tooth movement and alignment. Currently, most orthodontic archwires on the market are single, integral structures, and their elasticity and rigidity are usually difficult to adjust flexibly according to the orthodontic needs at different stages. In addition, this traditional design may have uneven force distribution when dealing with complex malocclusions.

[0003] Therefore, we have made improvements to this and proposed a multi-segment orthodontic archwire device for orthodontic treatment. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the elasticity and rigidity of existing orthodontic archwire devices are difficult to adjust flexibly due to the use of a single integral structure in orthodontic treatment, and to improve their shortcomings in uneven force distribution in the correction of complex malocclusions.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a multi-segment orthodontic archwire device for teeth straightening, comprising a segmented archwire assembly and a connection adjustment assembly. The segmented archwire assembly consists of multiple independent archwire segments, each segment being detachably connected and angle-adjustable via the connection adjustment assembly. The connection adjustment assembly further includes an elastic support and a limiting mechanism to control the relative positional relationship between the archwire segments and the applied orthodontic force.

[0006] The segmented archwire assembly comprises three or more archwire segments, each with a connecting end at both ends. The outer surface of each connecting end is threaded for connection with a threaded sleeve in the adjustment assembly. The material hardness and elastic modulus of each archwire segment can be selected according to the requirements of the correction stage, thereby meeting the different requirements for correction force at different stages.

[0007] The connection adjustment assembly includes a threaded sleeve, an elastic support, and a limiting mechanism. The inner wall of the threaded sleeve is provided with threads that match the connecting end, and a through hole is formed in the middle of the threaded sleeve. An annular groove is provided on the inner wall of the through hole. The elastic support is a cylindrical spring, installed inside the annular groove, with its two ends contacting the connecting ends of two adjacent archwire segments, respectively. The distance between adjacent archwire segments is adjusted by compression or extension. The limiting mechanism includes two limiting blocks, respectively fixed to both ends of the threaded sleeve. Limiting protrusions are provided on the inner side of the limiting blocks to limit the rotation angle range of the archwire segments.

[0008] As a preferred technical solution of this application, the end of the connecting head is provided with a spherical protrusion, and the two ends of the through hole of the threaded sleeve are provided with spherical grooves that match the spherical protrusion, so that the connecting head can swing freely within a certain range, thereby adapting to changes in the tooth alignment direction and evenly distributing the orthodontic force.

[0009] As a preferred technical solution of this application, the elastic coefficient of the elastic support can be changed according to the needs of the correction stage, specifically by installing springs of different materials or diameters in the annular groove. For example, a spring with a lower elastic coefficient is selected in the early stage of correction, while a spring with a higher elastic coefficient is selected in the later stage of correction, so as to gradually increase the correction force.

[0010] As a preferred technical solution of this application, the limiting block of the limiting mechanism is provided with an adjustment hole, and an adjustment screw is provided in the adjustment hole. The end of the adjustment screw contacts the limiting protrusion. By rotating the adjustment screw, the position of the limiting protrusion is changed, thereby adjusting the maximum rotation angle range of the bowwire segment.

[0011] As a preferred technical solution of this application, the outer surface of the threaded sleeve is provided with anti-slip texture, which facilitates manual adjustment by the operator inside the oral cavity. Furthermore, the length of the threaded sleeve can be customized according to the distance between two adjacent teeth to ensure a tight and stable connection between the archwire segments.

[0012] As a preferred technical solution of this application, the cross-sectional shape of each segment of the segmented archwire assembly is rectangular or circular, wherein the archwire segment with a rectangular cross-section is suitable for areas requiring a larger corrective force, while the archwire segment with a circular cross-section is suitable for areas requiring a smaller corrective force.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: The segmented archwire assembly and connection adjustment assembly enable flexible adjustment of the orthodontic archwire device at different stages of treatment. Specifically, the segmented archwire assembly design allows for the selection of archwire segments with different material hardness and elastic modulus based on the specific condition of the teeth, thus meeting the orthodontic needs at different stages. The elastic support and limiting mechanism in the connection adjustment assembly can precisely control the distance and angle between adjacent archwire segments, ensuring a more uniform distribution of orthodontic force and avoiding the uneven force distribution problem in traditional one-piece designs. In addition, the fit design between the connection end and the threaded sleeve makes the connection between archwire segments more stable while allowing for a certain degree of free swing, further improving the adaptability and comfort of the device.

[0014] Through the above technical solution, this utility model solves the problems of uneven force distribution and difficulty in flexibly adjusting the corrective force in the correction of complex malocclusion using existing orthodontic archwire devices, significantly improving the efficiency of orthodontic treatment and patient comfort, and has outstanding creativity, novelty and practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the bowwire section structure for connecting the adjustment assembly.

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0018] Figure 4 Schematic diagram of the internal structure of the threaded sleeve The attached figures are labeled as follows: 1. Segmented bow wire assembly; 2. Connection and adjustment assembly; 3. Bow wire segment; 4. Connection end; 5. Threaded sleeve; 6. Elastic support; 7. Limiting mechanism; 8. Spherical protrusion; 9. Annular groove; 10. Limiting block; 11. Limiting protrusion; 12. Adjusting screw. Detailed Implementation

[0019] This utility model provides a multi-segment orthodontic archwire device for teeth straightening, the specific implementation of which is as follows. Figure 1-4 As shown, the device includes a segmented archwire assembly 1 and a connecting adjustment assembly 2. The segmented archwire assembly 1 consists of multiple independent archwire segments 3, and each archwire segment 3 is detachably connected and angle-adjustable through the connecting adjustment assembly 2. The connecting adjustment assembly 2 includes a threaded sleeve 5, an elastic support 6, and a limiting mechanism 7. These components cooperate to control the relative positional relationship between adjacent archwire segments 3 and the applied corrective force.

[0020] In practice, each archwire segment 3 has a connecting end 4 at both ends. The outer surface of the connecting end 4 is threaded to engage with the threaded sleeve 5 in the connecting adjustment assembly 2. The inner wall of the threaded sleeve 5 has threads that match those of the connecting end 4. When the connecting end 4 is screwed into the threaded sleeve 5, a stable mechanical connection is formed, ensuring a tight connection between the archwire segments 3. Furthermore, the end of the connecting end 4 has a spherical protrusion 8, and the two ends of the through hole of the threaded sleeve 5 have spherical grooves that match the spherical protrusion 8, allowing the connecting end 4 to swing freely within a certain range. This design allows the archwire segment 3 to make minute angular adjustments when under force, thus adapting to changes in tooth alignment and evenly distributing the corrective force. The engagement of the spherical protrusion 8 and the spherical groove is clearly visible; its swing range is limited by the shape of the through hole of the threaded sleeve 5, but it is sufficient to meet the flexibility requirements during orthodontic treatment.

[0021] Furthermore, the elastic support 6 in the connecting adjustment assembly 2 is a cylindrical spring, installed in the annular groove 9 on the inner wall of the through hole in the middle of the threaded sleeve 5. Both ends of the elastic support 6 contact the connecting ends 4 of two adjacent archwire segments 3, adjusting the distance between adjacent archwire segments 3 by compression or extension. Springs of different materials or diameters can be replaced and installed in the annular groove 9 to achieve different elastic coefficients. For example, a spring with a lower elastic coefficient can be selected in the initial stage of correction, while a spring with a higher elastic coefficient can be selected in the later stage of correction to gradually increase the corrective force. This design allows the elastic support 6 to be flexibly adjusted according to the needs of the correction stage, thereby meeting the different requirements for corrective force at different stages.

[0022] The limiting mechanism 7 includes two limiting blocks 10, which are fixed to both ends of the threaded sleeve 5. A limiting protrusion 11 is provided on the inner side of each limiting block 10 to limit the rotation angle range of the archwire segment 3. An adjustment hole is provided on each limiting block 10, and an adjusting screw 12 is installed inside the adjustment hole. The end of the adjusting screw 12 contacts the limiting protrusion 11. By rotating the adjusting screw 12, the position of the limiting protrusion 11 is changed, thereby adjusting the maximum rotation angle range of the archwire segment 3. This design allows the operator to precisely control the rotation angle of the archwire segment 3 according to the patient's specific condition, avoiding discomfort or poor corrective effect caused by excessive rotation.

[0023] The outer surface of the threaded sleeve 5 is textured with anti-slip grooves, facilitating manual adjustment by the operator within the oral cavity. Furthermore, the length of the threaded sleeve 5 can be customized according to the distance between adjacent teeth to ensure a tight and stable connection between the archwire segments 3. Each archwire segment 3 of the segmented archwire assembly 1 can have a rectangular or circular cross-sectional shape. Rectangular cross-section archwire segments 3 are suitable for areas requiring greater orthodontic force, while circular cross-section archwire segments 3 are suitable for areas requiring less orthodontic force. This design allows for greater flexibility in the selection of archwire segments 3, providing appropriate orthodontic force for different orthodontic needs in various areas.

[0024] In practical applications, the multi-segment orthodontic archwire device of this invention is assembled and used according to the following steps. First, select the appropriate number and material hardness of the archwire segments 3 based on the patient's tooth alignment. Each archwire segment 3 has threaded connecting ends 4 at both ends, with spherical protrusions 8 at their ends. Then, screw the connecting ends 4 into the threaded sleeve 5, ensuring that the spherical protrusions 8 of the connecting ends 4 fully engage with the spherical grooves of the threaded sleeve 5. Next, install the elastic support 6 into the annular groove 9 of the threaded sleeve 5, ensuring that its two ends contact the connecting ends 4 of the adjacent two archwire segments 3. Finally, fix the limiting blocks 10 to both ends of the threaded sleeve 5, and adjust the position of the limiting protrusions 11 using the adjusting screws 12 to set the maximum rotation angle range of the archwire segments 3.

[0025] During orthodontic treatment, the operator can adjust the device in real time according to the patient's specific condition. For example, when it is necessary to increase the orthodontic force, the effect of the elastic support 6 can be enhanced by replacing it with a spring with a higher elastic coefficient; when it is necessary to adjust the angle of the archwire segment 3, the position of the limiting protrusion 11 can be changed by rotating the adjusting screw 12, thereby resetting the rotation angle range of the archwire segment 3. In addition, since the fit design of the connecting end 4 and the threaded sleeve 5 allows for a certain degree of free swing, the archwire segment 3 can automatically adjust its angle according to changes in the tooth alignment direction, thereby ensuring a more uniform distribution of orthodontic force.

[0026] This invention's multi-segment orthodontic archwire device achieves flexible adjustment at different stages of orthodontic treatment through the design of a segmented archwire assembly 1 and a connecting adjustment assembly 2. The segmented archwire assembly 1 allows for the selection of archwire segments 3 with different material hardness and elastic modulus based on the specific condition of the teeth, thus meeting the orthodontic needs at different stages. The elastic support 6 and limiting mechanism 7 in the connecting adjustment assembly 2 can precisely control the distance and angle between adjacent archwire segments 3, ensuring a more uniform distribution of orthodontic force and avoiding the problem of uneven force distribution in traditional one-piece designs. Furthermore, the mating design of the connecting end 4 and the threaded sleeve 5 makes the connection between the archwire segments 3 more stable while allowing for a certain degree of free swing, further improving the adaptability and comfort of the device.

[0027] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the implementation principle of this utility model is provided in conjunction with specific application scenarios.

[0028] In orthodontic treatment, the first step is to design the overall layout of the multi-segment orthodontic archwire appliance based on the specific condition of the patient's dentition. Taking the treatment of a patient with complex malocclusion as an example, the maxillary anterior teeth are disordered due to crowding, while the posterior teeth need to maintain their current position with slight adjustment forces. Through imaging analysis and model measurements, the operator determined that the segmented archwire assembly 1 should have four archwire segments 3, and selected archwire segments 3 with different material hardness for the anterior and posterior regions respectively. For the anterior region, a circular cross-section archwire segment 3 with a lower elastic modulus was selected to provide flexible corrective force; while for the posterior region, a rectangular cross-section archwire segment 3 with higher rigidity was selected to enhance stability.

[0029] Subsequently, the operator screws the connecting end 4 of each archwire segment 3 into the threaded sleeve 5, ensuring a tight fit between the spherical protrusion 8 on the connecting end 4 and the spherical groove inside the threaded sleeve 5. The key to this step is ensuring a stable mechanical connection between the connecting end 4 and the threaded sleeve 5 while allowing for a certain range of free movement. This oscillation function is designed so that when teeth undergo slight displacement during orthodontic treatment, the connecting end 4 can automatically adjust its angle through the range of motion of the spherical protrusion 8 within the spherical groove, thereby avoiding discomfort or poor orthodontic results caused by stress concentration. The range of motion of the spherical protrusion 8 is limited by the shape of the through-hole, but its flexibility is sufficient to adapt to changes in tooth alignment and to evenly distribute the orthodontic force.

[0030] Next, the elastic support 6 is installed within the annular groove 9 of the threaded sleeve 5. For the patient's initial orthodontic needs, the operator selected a spring with a low elastic coefficient as the elastic support 6. Both ends of the elastic support 6 contact the connecting ends 4 of two adjacent archwire segments 3, adjusting the distance between the archwire segments 3 by compression or extension. At this stage, the main function of the elastic support 6 is to provide gentle initial orthodontic force, helping the teeth gradually move into the correct position. As treatment progresses, the operator can replace the spring with one of a higher elastic coefficient, gradually increasing the orthodontic force to meet the needs of different stages.

[0031] The limiting mechanism 7 further enhances the accuracy of the device. The limiting block 10 is fixed to both ends of the threaded sleeve 5, and the limiting protrusion 11 limits the maximum rotation angle range of the archwire segment 3 by adjusting the position of the adjusting screw 12. For example, during orthodontic treatment of the patient's anterior teeth, the operator adjusts the position of the limiting protrusion 11 by rotating the adjusting screw 12, setting the rotation angle range of the archwire segment 3 to ±10° to prevent tooth displacement or malocclusion caused by excessive rotation. This design allows the device to be flexibly adjusted according to the patient's individual needs, improving the safety and effectiveness of the orthodontic process.

[0032] In practice, the operator also needs to customize the length of the threaded sleeve 5 according to the distance between the patient's teeth. For example, if the distance between two teeth is large, a longer threaded sleeve 5 is selected to ensure a tight and stable connection between the archwire segments 3. In addition, the anti-slip texture design on the outer surface of the threaded sleeve 5 facilitates manual adjustment by the operator in the oral cavity, which can significantly improve operational efficiency, especially when performing delicate operations in confined spaces.

[0033] During orthodontic treatment, the operator can monitor the patient's tooth movement in real time and dynamically adjust the device. For example, when the teeth in the anterior region are found to be basically aligned, the operator can increase the orthodontic force by replacing the spring with one with one of higher elasticity coefficients, pushing the teeth further to the ideal position. Simultaneously, if the angle of a section of the archwire 3 needs adjustment, the operator can change the position of the limiting protrusion 11 by rotating the adjusting screw 12, thus resetting the rotation angle range of the archwire section 3. Because the fit design between the connecting end 4 and the threaded sleeve 5 allows for a certain degree of free movement, the archwire section 3 can automatically adjust its angle according to changes in the tooth alignment direction, thereby ensuring a more uniform distribution of orthodontic force.

[0034] Through the above steps, the multi-segment orthodontic archwire device of this invention achieves flexible adjustment at different orthodontic stages. The segmented archwire assembly 1 allows for the selection of archwire segments 3 with different material hardness and elastic modulus according to the specific condition of the teeth, thereby meeting the orthodontic needs at different stages. The elastic support 6 and limiting mechanism 7 in the connecting adjustment assembly 2 can precisely control the distance and angle between adjacent archwire segments 3, ensuring a more uniform distribution of orthodontic force and avoiding the problem of uneven force distribution in traditional one-piece designs. In addition, the matching design of the connecting end 4 and the threaded sleeve 5 makes the connection between the archwire segments 3 more stable, while allowing a certain degree of free swing, further improving the adaptability and comfort of the device.

[0035] In summary, this utility model demonstrates its actual operating principle and procedures in orthodontic treatment through specific application scenarios, showcasing its outstanding advantages in solving existing technical problems.

Claims

1. A multi-segment orthodontic archwire device for teeth straightening, characterized in that, The system includes a segmented bowwire assembly (1) and a connecting adjustment assembly (2). The segmented bowwire assembly (1) consists of multiple independent bowwire segments (3). Each bowwire segment (3) is detachably connected and its angle is adjusted through the connecting adjustment assembly (2). The connecting adjustment assembly (2) includes a threaded sleeve (5), an elastic support (6), and a limiting mechanism (7). The elastic support (6) is installed in an annular groove (9) in the middle of the threaded sleeve (5). The limiting mechanism (7) includes two limiting blocks (10), which are fixed to both ends of the threaded sleeve (5).

2. The multi-segment orthodontic archwire device for teeth straightening according to claim 1, characterized in that, The segmented bow wire assembly (1) includes three or more bow wire segments (3), and each bow wire segment (3) has a connecting end (4) at both ends. The outer surface of the connecting end (4) is provided with a threaded structure for connecting with a threaded sleeve (5).

3. A multi-segment orthodontic archwire device for teeth straightening according to claim 2, characterized in that, The end of the connecting end (4) is provided with a spherical protrusion (8), and the two ends of the through hole of the threaded sleeve (5) are provided with spherical grooves that match the spherical protrusion (8), so that the connecting end (4) can swing freely within a certain range.

4. A multi-segment orthodontic archwire device for teeth straightening according to claim 1, characterized in that, The elastic support (6) is a cylindrical spring, with its two ends in contact with the connecting ends (4) of two adjacent bow wire segments (3), and the distance between adjacent bow wire segments (3) can be adjusted by compression or extension.

5. A multi-segment orthodontic archwire device for teeth straightening according to claim 1, characterized in that, The limiting block (10) of the limiting mechanism (7) has an adjustment hole, and an adjustment screw (12) is provided in the adjustment hole. The end of the adjustment screw (12) contacts the limiting protrusion (11). By rotating the adjustment screw (12), the position of the limiting protrusion (11) is changed, thereby adjusting the maximum rotation angle range of the bow wire section (3).

6. A multi-segment orthodontic archwire device for teeth straightening according to claim 1, characterized in that, The outer surface of the threaded sleeve (5) is provided with anti-slip texture, and the length of the threaded sleeve (5) is customized according to the distance between two adjacent teeth.

7. A multi-segment orthodontic archwire device for teeth straightening according to claim 2, characterized in that, The cross-sectional shape of each section (3) of the segmented bowwire assembly (1) is rectangular or circular.

8. A multi-segment orthodontic archwire device for teeth straightening according to claim 4, characterized in that, The material or diameter of the elastic support (6) can be changed according to the needs of the correction stage to achieve different elastic coefficients.

Images