An orthodontic bracket having a detachable traction hook

Abstract

The utility model discloses an orthodontic bracket with detachable towing hook, including bracket main part and detachable towing hook, the bracket main part has the installation through hole for inserting the towing hook, the installation through hole is counterbore, the towing hook includes towing hook function section, retaining section, plug -in section and bending section that connect gradually, the towing hook function section is provided with towing hook, the retaining section is provided with retaining lug, and retaining lug is all convex in the radial on the outer wall of towing hook function section and the outer wall of plug -in section, the retaining section and plug -in section are located in the installation through hole, and the retaining section is located in the upper section of the larger hole diameter of counterbore and the inner wall of counterbore upper section and retaining lug cooperation realizes the retention, the plug -in section is located in the smaller lower section of hole diameter, the bending section is outside force bending and leans on the bracket main part after the complete insertion of plug -in section, the utility model discloses the towing hook installation has multiple positioning steady accurate advantage.

Description

Technical Field

[0001] This utility model relates to orthodontic brackets, specifically to an orthodontic bracket with a detachable traction hook. Background Technology

[0002] In orthodontic treatment, brackets are the most commonly used component. Currently, various self-ligating brackets are available in clinical applications, greatly simplifying the locking of the archwire within the bracket for clinicians. To expand the functionality of brackets, various functional accessories are often added, such as the most common traction hook. Previously, traction hooks were often fixed to the bracket's working wings; now, with the diversification of orthodontic needs, traction hooks are detachably installed into the bracket body. This is typically achieved through insertion holes on the bracket body, which can be one or more as needed. The part of the traction hook that inserts into the bracket body often uses a combination of cylindrical and circular through-hole designs. After insertion, the traction hook is usually secured by bending its end. However, this method of retention can easily cause the traction hook to wobble within the insertion hole, leading to unstable retention. Furthermore, simply positioning the hook by bending its end can lead to axial thrust when the end is bent under external force. This can cause a change in the hook's positioning within the insertion hole, affecting its accuracy. Therefore, accurately securing and positioning the hook within the bracket body is a problem that needs to be solved. Summary of the Invention

[0003] In view of the problems existing in the background technology, the present invention provides an orthodontic bracket with a detachable traction hook. The orthodontic bracket and the detachable traction hook are fixed to the orthodontic bracket body more stably through the fixation structure of the fixation section on the traction hook, thus ensuring accurate positioning of the correction.

[0004] The technical solution of this utility model is as follows:

[0005] An orthodontic bracket with a detachable traction hook includes a bracket body and a detachable traction hook. The bracket body has a mounting through hole for inserting the traction hook. The mounting through hole is a countersunk hole. The traction hook includes a traction hook functional section, a retention section, a insertion section, and a bending section connected in sequence. The traction hook functional section is provided with a traction hook, and the retention section is provided with a retention protrusion, which protrudes radially from the outer wall of both the traction hook functional section and the outer wall of the insertion section. The retention section and the insertion section are located within the mounting through hole. The retention section is located in the upper section of the countersunk hole with a larger diameter, and the inner wall of the upper section of the countersunk hole cooperates with the retention protrusion to achieve retention. The insertion section is located in the lower section with a smaller diameter. The bending section bends under external force and abuts against the bracket body after the insertion section is fully inserted.

[0006] The orthodontic bracket with a detachable traction hook described above has a retaining protrusion that is a radially larger protrusion than the two adjacent sections, arranged around the traction hook axis at the retaining section.

[0007] The orthodontic bracket with a detachable traction hook described above has a retaining protrusion that is a half-circle or a protrusion that is locally larger than the two adjacent segments in the radial direction at the retaining segment, arranged around the traction hook axis.

[0008] The above-mentioned orthodontic bracket with a detachable traction hook, wherein the retaining protrusion is a local radially larger protrusion arranged around the traction hook axis at the retaining section, and the protrusion is two radially symmetrical protrusions.

[0009] The above-mentioned orthodontic bracket with a detachable traction hook has a polygonal insertion section, and the mounting through hole has a matching shape consistent with the polygon.

[0010] The above-mentioned orthodontic bracket with a detachable traction hook has a pair of elastic retaining rings symmetrically arranged radially outward on the outer wall of the retaining protrusion, and a retaining groove for accommodating the elastic retaining ring is provided at the countersunk hole position corresponding to the elastic retaining ring.

[0011] The orthodontic bracket with a detachable traction hook described above is further provided with a compression hole on the retention section, and the compression hole is located at the center of the retention section.

[0012] The orthodontic bracket with a detachable traction hook is provided with a locking block at the position corresponding to the squeezing force point of the squeezing hole, and a slot for accommodating the locking block is provided at the countersunk hole position corresponding to the locking block.

[0013] The above-mentioned orthodontic bracket with a detachable traction hook has a compression hole that is rhomboid or elliptical, and the two opposite corners of the rhomboid or elliptical shape are the compression force application points.

[0014] The orthodontic bracket with a detachable traction hook described above has a spherical traction hook or an annular traction hook in the traction hook functional section.

[0015] Compared with the prior art, this utility model has the following advantages: the retaining section of the traction hook has a raised retaining protrusion, and the retaining protrusion cooperates with the inner wall of the upper section of the countersunk hole in the mounting through hole of the bracket body to achieve retention, ensuring the stable retention of the traction hook in the axial direction of the through hole. At the same time, the insertion section of the traction hook is of various polygons, and the lower section of the corresponding countersunk hole with a smaller diameter also adopts the same polygon as the insertion section. The two achieve further retention through the cooperation of shape and size, achieving double retention, which can more accurately and firmly fix the traction hook, preventing the traction hook from shaking in the mounting through hole in the bracket body, while not affecting disassembly.

[0016] Furthermore, in order to better fit with the inner wall of the upper section of the countersunk hole where the through hole is installed, this utility model provides a compression through hole in the fixing section, so that the fixing protrusion fits more tightly with the inner wall of the upper section of the countersunk hole. Attached Figure Description

[0017] Figure 1 This utility model relates to an orthodontic bracket with a detachable traction hook.

[0018] Figure 2 yes Figure 1 A side view diagram.

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure without a base plate.

[0020] Figure 4 yes Figure 3 A schematic diagram of a structure without a towing hook.

[0021] Figure 5 yes Figure 1 A schematic diagram of the structure of the traction hook.

[0022] Figure 6 yes Figure 1 A schematic diagram of one embodiment where the middle traction hook insertion section is hexagonal and the retaining protrusion is a full circle of protrusions.

[0023] Figure 7 yes Figure 1 A schematic diagram of one embodiment where the middle traction hook insertion section is an inverted triangular shape.

[0024] Figure 8 yes Figure 1 A schematic diagram of one embodiment where the middle traction hook insertion section is an inverted ellipse shape.

[0025] Figure 9 This is a schematic diagram of the traction hook in Example 2.

[0026] Figure 10 This is a schematic diagram of the installation of the traction hook in the main body of the bracket in Embodiment 2.

[0027] Figure 11 This is a schematic diagram of the traction hook in Example 3.

[0028] Figure 12 This is a schematic diagram of the installation of the traction hook in the main body of the bracket in Example 3.

[0029] Figure 13 This is a schematic diagram of the traction hook in Example 4.

[0030] Figure 14 This is a schematic diagram of the installation of the traction hook in the main body of the bracket in Example 4.

[0031] In the figure, the base plate is 1, the bracket body is 2, the bow wire groove is 3, the detachable traction hook is 4, the traction hook functional section is 41, the traction hook retaining section is 42, the retaining protrusion is 421, the extrusion hole is 422, the locking block is 423, the elastic retaining ring is 424, the traction hook insertion section is 43, the traction hook bend is 44, the mounting through hole is 5, the upper section with a larger hole diameter is 51, and the lower section with a smaller hole diameter is 52. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. However, the present invention is not limited to the following embodiments.

[0033] See Figure 1-8 An orthodontic bracket with a detachable traction hook comprises a base plate 1, a bracket body 2, and a detachable traction hook 4. The bracket body 2 has an archwire groove 3, which is laterally opened along the bracket body 2 for the insertion of the orthodontic archwire. The bracket can be a self-locking bracket or a general bracket. Figure 4 As shown, the bracket body 2 is provided with a mounting through hole 5, which is a countersunk hole structure, including an upper section 51 with a larger diameter and a lower section 52 with a smaller diameter. Figure 5 As shown, the traction hook 4 includes a traction hook functional section 41, a retention section 42, a insertion section 43, and a bending section 44 connected in sequence. The traction hook functional section 41 is provided with a traction hook, the form of which can vary according to actual needs and can be spherical, annular, or other existing forms, not limited to the spherical form shown in the accompanying drawings. It is used to connect orthodontic accessories such as rubber bands. The retention section 42 is provided with retention protrusions 421, which protrude radially from the outer wall of the traction hook functional section 41 and the outer wall of the insertion section 43. The retention protrusions 421 can be configured as partial or full ring structures; when partially configured, they can be arranged as follows: Figure 5 The diagram shows two radially symmetrical protrusions. However, this form can be freely chosen and is not limited to in specific implementations. The retaining section 42 and the insertion section 43 are located within the mounting through hole, with the retaining section 42 located in the upper section of the countersunk hole with a larger diameter. The inner wall of the upper section of the countersunk hole cooperates with the retaining protrusion 421 to achieve retention. The insertion section 43 is located in the lower section with a smaller diameter. The insertion section 43 has a polygonal structure, and the corresponding lower section of the countersunk hole also adopts the same polygonal shape as the insertion section 43. The two achieve further retention through the cooperation of their shapes and sizes. After the insertion section 43 is fully inserted, the bent section 44 is bent by external force and abuts against the bracket body 2, forming a third layer of retention.

[0034] See Figure 6-8 The plug-in segment 43 of this utility model can adopt various polygonal structures. Specific examples are shown in the accompanying drawings. Of course, the specific form is not limited to the following forms:

[0035] Figure 6 The diagram shows an embodiment where the insertion section 43 is hexagonal, and the corresponding lower section of the mounting through hole also adopts a hexagonal structure. The retaining protrusion 421 is a ring of protrusions arranged radially around the traction hook axis at the retaining section 42, which is larger than the protrusions of the two adjacent sections.

[0036] Figure 7 The diagram shows an embodiment where the insertion section 43 is an inverted triangle shape, and the corresponding lower section of the mounting through hole also adopts an inverted triangle structure. The retaining protrusion 421 is a semi-circular radial protrusion located at the retaining section 42 around the traction hook axis, which is larger than the protrusions of the two adjacent sections.

[0037] Figure 8 The diagram shows an embodiment where the insertion section 43 is an inverted elliptical shape, and the corresponding lower section of the mounting through hole also adopts an inverted elliptical structure. The retaining protrusion 421 is a protrusion that is larger in radial direction than the two adjacent sections, arranged around the axial direction of the traction hook at the retaining section 42.

[0038] Example 2

[0039] The other structures in this embodiment are the same as those in Embodiment 1, but the difference lies in the following features: Figure 9 and Figure 10 As shown, the retaining section 42 is also provided with a compression hole 422. The compression hole is preferably located at the center of the retaining section, making the retaining protrusion 421 fit more tightly with the inner wall of the upper section of the countersunk hole. Because the retaining section is made of metal and is relatively small, the compression hole 422 can deform under external force. This deformation of the compression hole 422 makes the retaining section 42 fit more tightly with the inner wall of the upper section of the countersunk hole, which has a larger diameter. The compression hole 422 is preferably rhomboid in shape, but other shapes are also possible, as long as there is sufficient compression space, such as elliptical or other shapes. In this embodiment, the two opposite corners of the rhomboid compression hole 422 are the compression force application points.

[0040] Example 3

[0041] The other structures in this embodiment are the same as those in Embodiment 2, but the difference lies in the following features: Figure 11 and Figure 12 As shown, a retaining protrusion 421 corresponding to the extrusion point of the extrusion hole 422 is further provided with a retaining block 423 on its outer edge, and a retaining groove is provided at the countersunk hole position corresponding to the retaining block 423 (i.e., Figure 12 (The position of the card block 423 on the inner wall of the countersunk hole shown) to achieve a further fixation effect.

[0042] Example 4

[0043] The other structures in this embodiment are the same as those in embodiment 3, the difference being that, for example... Figure 13 and 14As shown, the retaining section of the traction hook does not have a compression hole, and a pair of elastic retaining rings 424 are symmetrically arranged radially outward on the outer wall of the retaining protrusion 421. A groove (i.e., a countersunk hole position) is provided at the position corresponding to the elastic retaining ring 424. Figure 14 (The position of the elastic retaining ring 424 on the inner wall of the countersunk hole shown) further enhances the retention effect.

[0044] The detachable traction hook orthodontic bracket provided by this utility model has the following advantages:

[0045] 1. Multiple fixation: The traction hook 4 is stably fixed by a triple fixation method, which involves the engagement of the fixation protrusion 421 with the countersunk hole, the engagement of the insertion section 43 with the shape of the through hole, and the abutment of the bent section 44.

[0046] 2. Precise positioning: The polygonal plug section 43 fits into the corresponding shaped mounting through hole to prevent the traction hook 4 from rotating within the through hole and to ensure the accuracy of the traction hook direction.

[0047] 3. Easy to disassemble: The design of the compression hole 422 or the elastic retaining ring 424 allows for easy disassembly of the traction hook 4 while maintaining a stable and secure position, meeting the needs of different clinical treatment stages.

[0048] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the scope of protection of the utility model. Therefore, the scope of protection of the utility model should be determined by the scope defined in the claims.

Claims

1. An orthodontic bracket with a detachable traction hook, comprising a bracket body and a detachable traction hook, wherein the bracket body has a mounting through hole for inserting the traction hook; characterized in that: The mounting through hole is a countersunk hole. The traction hook includes a traction hook functional section, a retaining section, a plug-in section, and a bending section connected in sequence. The traction hook functional section is provided with a traction hook, and the retaining section is provided with a retaining protrusion. The retaining protrusion protrudes radially from the outer wall of the traction hook functional section and the outer wall of the plug-in section. The retaining section and the plug-in section are located inside the mounting through hole. The retaining section is located in the upper section of the countersunk hole with a larger diameter, and the inner wall of the upper section of the countersunk hole cooperates with the retaining protrusion to achieve retention. The plug-in section is located in the lower section with a smaller diameter. The bending section bends under external force and abuts against the bracket body after the plug-in section is fully inserted.

2. The orthodontic bracket with a detachable traction hook as described in claim 1, characterized in that, The retaining protrusion is a radially larger protrusion than the two adjacent sections, arranged around the axial direction of the traction hook at the retaining section.

3. An orthodontic bracket with a detachable traction hook as described in claim 1, characterized in that, The retaining protrusion is a half-circle or a protrusion that is locally larger than the two adjacent segments in the radial direction at the retaining segment, which is arranged around the traction hook axis.

4. An orthodontic bracket with a detachable traction hook as described in claim 1, characterized in that, The retaining protrusion is a local radial protrusion that is larger than the two adjacent protrusions and is arranged around the axial direction of the traction hook at the retaining section. It consists of two radially symmetrical protrusions.

5. An orthodontic bracket with a detachable traction hook as described in any one of claims 1 to 4, characterized in that, The plug segment is polygonal, and the mounting through hole has a matching shape consistent with the polygon.

6. An orthodontic bracket with a detachable traction hook as described in any one of claims 1 to 4, characterized in that, A pair of elastic retaining rings are symmetrically arranged radially outward on the outer wall of the retaining protrusion, and a retaining groove for accommodating the elastic retaining ring is provided at the countersunk hole position corresponding to the elastic retaining ring.

7. An orthodontic bracket with a detachable traction hook as described in any one of claims 1 to 4, characterized in that, The retaining section is also provided with a compression hole, which is located at the center of the retaining section.

8. An orthodontic bracket with a detachable traction hook as described in claim 7, characterized in that, A locking block is provided at the position corresponding to the pressing force point of the extrusion hole, and a slot for accommodating the locking block is provided at the countersunk hole position corresponding to the locking block.

9. An orthodontic bracket with a detachable traction hook as described in claim 7, characterized in that, The extrusion hole is set to a rhombus or an ellipse, and the two opposite corners of the rhombus or ellipse are the extrusion force application points.

10. An orthodontic bracket with a detachable traction hook as described in any one of claims 1-4, 8, and 9, characterized in that, The traction hook in the traction hook functional section is either a spherical traction hook or a ring-shaped traction hook.

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