Active elastic sheet self-ligating bracket
By designing an active spring self-ligating bracket, the arc-shaped convex surface of the spring automatically presses against the archwire to achieve the self-ligating function, which solves the problems of complex structure and insufficient restraint of existing self-ligating brackets, and improves the convenience and accuracy of orthodontic operation.
Patent Information
- Application Number
- CN202422792493.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-15
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-15
AI Technical Summary
Existing self-locking brackets have complex structures, are difficult to process and assemble, are costly, and cannot apply sufficient restraint to the archwire, affecting tooth movement and torsion.
Design an active spring self-ligating bracket that uses the arc-shaped convex surface of the spring to automatically press against the archwire to achieve self-ligating function. The elastic deformation of the spring provides sufficient restraint force, simplifying operation and improving the accuracy of orthodontic treatment.
It simplifies the operation steps, improves the convenience of operation and the accuracy of orthodontic treatment, ensures the effective restraint of the archwire, and enhances the control of tooth movement and rotation.
Smart Images
Figure CN223653956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthodontics, specifically to a self-ligating bracket for orthodontic treatment. Background Technology
[0002] In orthodontic treatment, orthodontic brackets are typically attached to the tooth surface, and the orthodontic archwire is placed within the archwire slots of the brackets to transmit corrective forces and achieve the desired tooth movement. Traditional orthodontic brackets require ligatures or rubber bands to secure the archwire within the bracket. This ligation method is cumbersome and puts significant pressure on the archwire, affecting its normal movement and thus impacting the orthodontic outcome. To address this issue, self-ligating bracket designs have emerged in recent years.
[0003] While existing self-ligating brackets can reduce ligation procedures, their structure is relatively complex, requiring the use of specialized tools or small components to achieve the self-ligating function. This makes them difficult to manufacture and assemble, resulting in high costs. Furthermore, some self-ligating brackets are limited by their sliding cover self-ligating structure, making it impossible to apply sufficient restraint force to the archwire and effectively control tooth movement and torsion. Summary of the Invention
[0004] In order to overcome at least one deficiency of the prior art, this utility model provides a spring self-locking bracket that can generate an active self-locking function for the archwire, which can apply sufficient restraint force to the archwire and effectively control tooth movement and torsion.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An active spring-loaded self-ligating orthodontic bracket includes a bracket body and a self-ligating slide cover. The bracket body has an archwire groove for accommodating an orthodontic archwire, which divides the bracket body into a first base and a second base. The second base has a slide groove for accommodating the self-ligating slide cover. The self-ligating slide cover moves within the slide groove to close and open the archwire groove. A spring is provided on the bottom surface of the self-ligating slide cover. The spring has an arc-shaped convex surface protruding from the bottom surface of the self-ligating slide cover. A spring limiting groove that mates with the arc-shaped convex surface of the spring is provided in the corresponding slide groove. Furthermore, a first limiting boss is provided between the spring limiting groove and the archwire groove for the arc-shaped convex surface of the spring to slide.
[0007] The aforementioned active spring self-ligating orthodontic bracket has a spring mounting groove on the bottom surface of the self-ligating sliding cover, and a first slot and a second slot are provided on both sides of the spring mounting groove; the two ends of the arc-shaped convex surface of the spring are respectively provided with a first extension section and a second extension section, the first extension section is located in the first slot, and the second extension section is located in the second slot.
[0008] In the aforementioned active spring self-ligating orthodontic bracket, the length of the first extension segment is less than the depth of the first clasp, and the length of the second extension segment is less than the depth of the second clasp.
[0009] In the aforementioned active spring-loaded self-ligating orthodontic bracket, the length of the spring is slightly less than or equal to the width of the self-ligating sliding cover.
[0010] The aforementioned active spring self-ligating orthodontic bracket has a U-shaped or V-shaped arc-shaped convex surface protruding from the bottom surface of the self-ligating sliding cover.
[0011] The aforementioned active spring self-ligating orthodontic bracket has a notch provided on one side of the spring along the first extension and / or the second extension.
[0012] The aforementioned active spring self-ligating orthodontic bracket has a spring limiting block on the side wall of the limiting groove away from the archwire groove. The spring limiting block cooperates with the notch at the corresponding position to limit the opening of the self-ligating sliding cover.
[0013] The aforementioned active spring self-ligating orthodontic bracket has a spring insertion guide arc surface at the sliding end of the groove.
[0014] In summary, the advantages of this utility model are as follows:
[0015] 1. Because the spring on the self-locking slide cover has an arc-shaped convex surface that protrudes from the bottom surface of the self-locking slide cover, when the self-locking slide cover covers the archwire groove, the arc-shaped convex part of the spring can automatically press the archwire to achieve an active self-locking function, avoiding the cumbersome steps of using ligatures or rubber rings to fix the archwire in traditional orthodontic brackets, and greatly improving the convenience of operation.
[0016] 2. The wider spring under the self-ligating slide cover can apply sufficient restraint to the archwire, effectively controlling tooth movement and rotation, and improving the accuracy and effect of orthodontic treatment.
[0017] 3. The first extension of the spring sheet has ample room to move within the first slot, and the second extension of the spring sheet has ample room to move within the second slot, ensuring that the spring sheet has better elastic deformation space. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the active spring self-ligating orthodontic bracket of this utility model.
[0019] Figure 2 for Figure 1 A schematic diagram of an active spring self-ligating orthodontic bracket without a self-ligating sliding cover.
[0020] Figure 3This is a schematic diagram of the structure of the self-locking sliding cover of the active spring self-locking orthodontic bracket of this utility model without the spring.
[0021] Figure 4 This is a schematic diagram of the bottom structure of the self-locking sliding cover of the active spring self-locking orthodontic bracket of this utility model.
[0022] Figure 5 for Figure 4 CC cross-section view.
[0023] Figure 6 This is a schematic diagram of the open state of the self-locking sliding cover of the active spring self-locking orthodontic bracket of this utility model.
[0024] Figure 7 for Figure 6 GG cross-section diagram.
[0025] Figure 8 This is a schematic diagram showing the state of the self-locking sliding cover of the active spring self-locking orthodontic bracket during the sliding process of this utility model.
[0026] Figure 9 for Figure 8 EE cross-section diagram.
[0027] Figure 10 This is a schematic diagram showing the state of the active spring self-locking orthodontic bracket when the archwire is closed.
[0028] Figure 11 for Figure 10 DD cross-section view.
[0029] Figure 12 This is a schematic diagram of one embodiment of the spring on the self-locking sliding cover of the active spring self-locking orthodontic bracket of this utility model.
[0030] Figure 13 This is a schematic diagram of another embodiment of the spring sheet structure on the self-locking sliding cover of the active spring sheet self-locking orthodontic bracket of this utility model.
[0031] The diagram shows: 1. Bracket body, 2. Self-locking sliding cover, 3. Archwire groove, 11. First base, 12. Second base, 13. Slide groove, 4. Spring piece, 41. Arc-shaped convex surface, 42. First extension section, 43. Second extension section, 44. Notch, 5. Spring piece limiting groove, 6. First limiting boss, 7. Spring piece mounting groove, 71. First slot, 72. Second slot, 8. Spring piece limiting block, 9. Spring piece extrusion guide arc surface, 10. Bracket base plate, 10. Archwire A. Detailed Implementation
[0032] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.
[0033] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0034] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0035] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.
[0036] Example 1:
[0037] like Figures 1-3 As shown,
[0038] An active spring-loaded self-ligating orthodontic bracket includes a bracket body 1, a bracket base 10, and a self-ligating sliding cover 2. The bracket body 1 has an archwire groove 3 for accommodating the orthodontic archwire, which divides the bracket body 1 into a first base 11 and a second base 12. The second base 12 is provided with a groove 13 for accommodating the self-ligating sliding cover 2. The self-ligating sliding cover 1 can slide within the groove 13 along sliding cover tracks 16 on both sides of the groove 13, thereby closing and opening the archwire groove 3. Furthermore, a sliding cover positioning rail 17 can be provided within any of the sliding cover tracks 16. The sliding cover positioning rail 17 cooperates with the sliding cover positioning strip 21 on the self-ligating sliding cover 2, which facilitates the positioning of the self-ligating sliding cover 2, i.e., ensures that the self-ligating sliding cover 2 does not wobble within the groove 13.
[0039] like Figures 6 to 11 As shown, a spring piece 4 is also provided on the bottom surface of the self-locking sliding cover 2. Figure 12 and Figure 13As shown, the spring piece 4 has an arc-shaped convex surface 41 protruding from the bottom surface of the self-locking sliding cover 2. In specific implementation, the arc-shaped convex surface 41 of the spring piece 4 can be U-shaped or V-shaped, as long as it has enough area to press the bow wire in the bow wire groove (see the attached instruction manual for details). Figure 10 and Figure 11 Its shape is not limited to the two shapes mentioned above.
[0040] like Figure 2 As shown, the slide groove 13 corresponding to the bracket body 1 is provided with a spring piece limiting groove 5 that mates with the arc-shaped convex surface 41 of the spring piece 4; and a first limiting boss 51 for the arc-shaped convex surface 41 of the spring piece 4 to slide is also provided between the spring piece limiting groove 5 and the bow wire groove 3. The first limiting boss 51 can ensure that when the self-locking slide cover 2 is fully open, the entire arc-shaped convex surface 41 of the spring piece is located in the spring piece limiting groove 5, and at the same time, it can also ensure that when the self-locking slide cover 2 is fully closed, the arc-shaped convex surface 41 of the spring piece acts completely on the bow wire without displacement. At the same time, the first limiting boss 51 is set in an arc-shaped slope, which can both limit the spring piece and allow it to slide on the first limiting boss 51 after deformation under the action of external force.
[0041] like Figures 3 to 5 As shown, the bottom surface of the self-locking sliding cover 2 is provided with a spring clip mounting groove 7, and the two side walls of the spring clip mounting groove 7 are also provided with a first slot 71 and a second slot 72. Figure 12 and Figure 13 As shown, the two ends of the arc-shaped convex surface 41 of the spring piece 4 are respectively provided with a first extension section 42 and a second extension section 43. The first extension section 42 is disposed in the first slot 71, and the second extension section 43 is disposed in the second slot 2. In a specific implementation, the length of the first extension section 42 can be set to be less than the depth of the first slot 71, and the length of the second extension section 43 can be set to be less than the depth of the second slot 72, so that the spring piece can have more deformation space when it deforms.
[0042] In specific implementation, the spring piece 4 can also be provided with a notch 44 as needed, and the specific setting method is as follows: Figure 13 or Figure 12As shown, the notch 44 can be set on any segment of the first extension 42 and the second extension 43. However, the notch 44 cannot be too large to ensure the integrity of the arc-shaped convex surface 41 of the spring piece 4. Furthermore, a spring piece limiting block 8 can be set on the side wall of the spring piece limiting groove 5 of the mother body bracket 1 away from the archwire groove. The spring piece limiting block 8 protrudes vertically from the side wall plane of the spring piece limiting groove 5 away from the archwire groove. The protruding spring piece limiting block 8 cooperates with the notch 44 on the spring piece (this notch only refers to the notch located near the extension segment away from the archwire groove. In specific implementation, notches will also be set in other positions, but the notches in other positions do not interact with the spring piece limiting block 8, but are only to reduce the force on the spring piece due to compression deformation) to further limit the opening of the self-locking sliding cover 2.
[0043] like Figure 12 and Figure 4 As shown, in specific implementation, the length of the spring piece 4 (length is...) Figure 12 As shown in (a), it can be set to be slightly less than or equal to the width of the self-locking sliding cover (width is...). Figure 4 (As shown in d). In this way, the arc-shaped convex surface 41 of the spring 4 can ensure a larger contact area with the bowwire, thereby achieving effective control of the bowwire.
[0044] like Figure 2 As shown, in order to install the self-locking sliding cover 2, a spring inserting guide arc surface 9 can also be provided at the sliding end of the slide groove 13 to facilitate the insertion of the spring.
[0045] The active spring self-locking bracket of this utility model is briefly described in its usage process as follows: Figures 6 to 12 As shown, first open the self-locking sliding cover; the opening process is as follows: Figure 8 and Figure 9 As shown, the spring clip slides past the first limiting boss 51 along with the self-locking sliding cover 2, and then... Figure 6 and Figure 7 As shown, the overall arc-shaped convex surface 41 of the spring slides into the spring limiting groove 5, realizing the complete opening of the self-locking sliding cover. Then, after inserting the bowwire A, the self-locking sliding cover 2 is closed to obtain the desired result. Figure 10 and Figure 11 As shown in the diagram, the arc-shaped convex surface 41 of the spring plate actively acts on the archwire A, achieving active self-locking of the archwire and applying sufficient constraint force to the archwire to effectively control tooth movement and torsion.
[0046] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.
Claims
1. An active spring self-locking bracket, comprising a bracket body and a self-locking sliding cover; the bracket body has an archwire groove for accommodating the orthodontic archwire, the archwire groove dividing the bracket body into a first base and a second base, the second base being provided with a sliding groove for accommodating the self-locking sliding cover, the self-locking sliding cover moving within the sliding groove to close and open the archwire groove; characterized in that: A spring is provided on the bottom surface of the self-locking sliding cover. The spring has an arc-shaped convex surface that protrudes from the bottom surface of the self-locking sliding cover. A spring limiting groove that matches the arc-shaped convex surface of the spring is provided in the corresponding sliding groove. A first limiting boss for the arc-shaped convex surface of the spring is also provided between the spring limiting groove and the bow wire groove for the spring to slide.
2. The active spring self-locking bracket as described in claim 1, characterized in that: The bottom surface of the self-locking sliding cover is provided with a spring plate mounting groove, and the two side walls of the spring plate mounting groove are also provided with a first slot and a second slot; the two ends of the arc-shaped convex surface of the spring plate are respectively provided with a first extension section and a second extension section, the first extension section is located in the first slot, and the second extension section is located in the second slot.
3. The active spring self-locking bracket as described in claim 2, characterized in that: The length of the first extension segment is less than the depth of the first slot, and the length of the second extension segment is less than the depth of the second slot.
4. The active spring self-locking bracket as described in any one of claims 1-3, characterized in that: The length of the spring is slightly less than or equal to the width of the self-locking sliding cover.
5. The active spring self-locking bracket as described in any one of claims 1-3, characterized in that: The protruding arc-shaped surface of the spring sheet protruding from the bottom surface of the self-locking sliding cover is U-shaped or V-shaped.
6. The active spring self-locking bracket as described in any one of claims 1-3, characterized in that: The spring has a notch on one side of the first extension and / or the second extension.
7. The active spring self-locking bracket as described in claim 6, characterized in that: A spring-loaded limiting block is also provided on the side wall of the limiting groove away from the bow wire groove. The spring-loaded limiting block cooperates with the notch at the corresponding position to limit the opening of the self-locking sliding cover.
8. The active spring self-locking bracket as described in any one of claims 1-3, characterized in that: The sliding end of the groove is provided with a spring sheet for insertion into the guide arc surface.