Orthodontic traction locking piece and orthodontic system

Abstract

The utility model relates to an orthodontic traction locking piece and orthodontic system.The orthodontic traction locking piece comprises a traction section, a clamping section and a limiting section, the clamping section comprises a body part and two clamping arms extending from the body part, the traction section is arranged on the body part and used for achieving the traction function, the two clamping arms extend to the two opposite sides of an orthodontic appliance, and the limiting section is arranged on the body part. Each clamping arm is provided with a limiting section, the limiting section is used for being limited in a ligation groove or an arch wire groove of the orthodontic appliance, each clamping arm is further provided with a locking part, and the locking parts are located on the side edges of the orthodontic appliance respectively and used for limiting or abutting against an arch wire. When the traction function needs to be used, after the traction locking piece is assembled in place, the limiting section is limited in the ligation groove or the arch wire groove, the traction section achieves the traction function, the locking parts are located on the side edges of the orthodontic appliance respectively, the locking parts limit or abut against the arch wire, and the arch wire is prevented from moving relative to the arch wire groove. When the traction function does not need to be used, the traction locking piece is detached from the orthodontic appliance.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and in particular to an orthodontic traction locking device and orthodontic system. Background Technology

[0002] During orthodontic treatment, traction hooks are typically used to gradually move a portion of the teeth to the correct position. The ideal orthodontic process is as follows: A first orthodontic appliance with a first traction hook is fixed to the surface of the first tooth, which does not need to be moved. A second orthodontic appliance with a second traction hook is fixed to the surface of the second tooth, which needs to be moved to the correct position. Then, a rubber band is placed on the first and second traction hooks. The elastic force of the rubber band is transmitted to the first and second orthodontic appliances to pull the second tooth to the correct position.

[0003] However, when using traditional orthodontic appliances for correction, at least the following two problems exist:

[0004] 1. The archwire is placed in the archwire slot of the orthodontic appliance. During traction, due to the elastic force of the rubber band, the elastic force is transmitted to the second orthodontic appliance through the second traction hook, forcing the second orthodontic appliance to move the second tooth. At the same time, the elastic force is also transmitted to the first orthodontic appliance through the first traction hook, causing the first orthodontic appliance to also move relative to the archwire, thus affecting the correction effect and prolonging the treatment time.

[0005] 2. Traction hooks are usually formed on the body of orthodontic appliances by welding, bonding or integral molding. When the traction function is not needed, the traction hook protrudes from the body, which can easily cause a foreign body sensation and may also scratch the inner lip lining, causing ulcers. Utility Model Content

[0006] Therefore, it is necessary to provide an orthodontic traction locking device and orthodontic system that can lock the archwire and is removable when not in use, in order to address the above-mentioned technical problems.

[0007] An orthodontic traction locking device is used for installation on an orthodontic appliance. The orthodontic traction locking device includes a traction section, a clamping section, and a limiting section. The clamping section includes a body and two clamping arms extending from the body. The traction section is disposed on the body and is used to realize the traction function. The two clamping arms extend to opposite sides of the orthodontic appliance. Each clamping arm is provided with a limiting section, which is used to limit the ligation groove or archwire groove of the orthodontic appliance. Each clamping arm is also provided with a locking part, which is located on the side of the orthodontic appliance and is used to limit or abut against the archwire.

[0008] In one embodiment, the locking portion is a protrusion extending from the clamping arm.

[0009] In one embodiment, the protrusion is integrally formed on the clamping arm; or

[0010] The protrusion is fixed to the clamping arm by a fixing method.

[0011] In one embodiment, the locking part is a protrusion movably disposed on the clamping arm.

[0012] In one embodiment, the protrusion includes a protrusion, a connecting portion, and a limiting portion. The protrusion and the limiting portion are located at opposite ends of the connecting portion. A guide groove is provided on the clamping arm, and the connecting portion passes through the guide groove. The protrusion and the limiting portion are located on opposite sides of the clamping arm.

[0013] In one embodiment, the protrusion, the connecting portion, and the limiting portion are integrally formed, and the limiting portion is elastically bendable relative to the connecting portion; or

[0014] The protrusion and the connecting part form a bolt, and the limiting part is a nut.

[0015] In one embodiment, the locking part is an elastic element.

[0016] In one embodiment, the limiting segment is bendable relative to the clamping arm to encircle the orthodontic appliance together with the clamping segment; or

[0017] The limiting section includes a pair of anti-detachment parts located opposite each other on the clamping arm, the anti-detachment parts being limited within the ligation groove or the bowwire groove.

[0018] An orthodontic system includes an orthodontic appliance and an orthodontic traction locking device as described in any of the preceding claims. The orthodontic appliance includes a main body and a cover. The main body has an archwire groove that extends through the main body in a mesiodistal direction. The archwire groove divides the main body into a first working wing and a second working wing. The cover is movably disposed on the second working wing and can open or close the archwire groove. The orthodontic traction locking device is detachably installed on the main body. A limiting section is used to limit the archwire groove or ligation groove. The locking portion abuts against the archwire to lock the archwire, or there is a clearance between the locking portion and the archwire to limit the archwire.

[0019] In one embodiment, the main body is provided with a limiting protrusion and a limiting groove, and the limiting protrusion cooperates with the limiting groove.

[0020] The above-mentioned orthodontic traction locking device has at least the following advantages:

[0021] During orthodontic treatment, when traction is required, the orthodontic traction locking device is installed on the orthodontic appliance. Once properly assembled, the limiting section is positioned within the ligature groove or archwire groove. At this time, the traction section provides traction, while the locking section is located on the side of the orthodontic appliance, limiting or abutting the archwire to prevent movement relative to the archwire groove. Therefore, during traction, the elastic force of the rubber band is transmitted to the second orthodontic appliance via the second traction hook, forcing the second orthodontic appliance to move the second tooth. Simultaneously, the elastic force is also transmitted to the first orthodontic appliance via the first traction hook. However, because the locking section directly or indirectly limits the archwire, the first orthodontic appliance does not move relative to the archwire or moves only a small distance, thus improving orthodontic efficiency. When traction is no longer needed, the entire orthodontic traction locking device can be removed from the orthodontic appliance. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the orthodontic system in the first embodiment;

[0025] Figure 2 for Figure 1 The main view;

[0026] Figure 3 for Figure 1 Side view;

[0027] Figure 4 for Figure 1 A schematic diagram of the structure of orthodontic appliances in China;

[0028] Figure 5 for Figure 1 A schematic diagram of the orthodontic traction locking device;

[0029] Figure 6 This is a front view of the orthodontic system in the second embodiment, in which the locking part abuts against the archwire from the occipital to the gingival direction;

[0030] Figure 7 for Figure 6 The locking part of the orthodontic system shown is pressed against the archwire from the gingival direction to the occlusal direction;

[0031] Figure 8 for Figure 6 The locking part of the orthodontic system shown presses against the archwire from the lingual side to the labial side;

[0032] Figure 9 for Figure 6 The locking section of the orthodontic system shown limits the archwire.

[0033] Figure 10 for Figure 6 A schematic diagram of the orthodontic traction locking device;

[0034] Figure 11 for Figure 10 The main view.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Orthodontic system; 100. Orthodontic appliance; 200. Orthodontic traction locking device; 110. Main body; 120. Cover body; 111. Archwire groove; 112. First working wing; 113. Second working wing; 210. Traction section; 220. Clamping section; 230. Limiting section; 101. Archwire; 221. Main body; 222. Clamping arm; 240. Locking part; 211. Anti-dislodgement head; 223. Limiting protrusion; 114. Limiting groove; 241. Protrusion; 242. Connecting part; 243. Limiting part; 224. Guide groove. Detailed Implementation

[0037] It should be noted that the orthodontic appliances mentioned in this utility model refer to orthodontic brackets or buccal tubes, or other orthodontic appliances with similar functions and structures.

[0038] Unless otherwise stated, the following structural description requires the use of a frame of reference for the maxillary teeth to describe embodiments of the present invention. Therefore, as used herein, terms such as labial, lingual, mesial, distal, occlusal, and gingival, used to describe orthodontic appliances, are relative to the selected frame of reference. However, embodiments of the present invention are not limited to the selected frame of reference and the terms described, as orthodontic appliances can be used with other teeth in the oral cavity and in other directions.

[0039] For example, brackets or buccal tubes can also be coupled to the lingual surface of the teeth and fall within the scope of this invention. Those skilled in the art will recognize that the descriptive terms used herein may not be directly applicable when there are changes in the frame of reference. However, embodiments of this invention are intended to be independent of position and orientation within the oral cavity, and the related terminology used to describe the embodiments is merely to provide clear illustration of the embodiments in the drawings. Similarly, the related terms labial, lingual, mesial, distal, occlusal, and gingival in no way limit this invention to a particular position or orientation.

[0040] The terms labial, lingual, mesial, distal, occlusal, and gingival are industry terms used in orthodontic treatment. Taking an upper jaw tooth as an example, the tooth surface can be roughly divided into six surfaces. The surface of the tooth that occludes with the lower jaw teeth is the occlusal surface; the surface of the tooth that connects to the attached gingival tissue is the gingival surface; the occlusal surface and the gingival surface are opposite each other, and the direction formed by the occlusal surface and the gingival surface is also called the gingio-occlusal direction. The surface of the tooth facing the lips is the labial surface, and the surface of the tooth facing the tongue is the lingual surface; the labial surface and the lingual surface are opposite each other, and the direction formed by the labial surface and the lingual surface is also called the labiolingual direction. The two surfaces of the tooth that contact adjacent teeth are the mesial surface and the distal surface, the difference being their distance from the center; the direction formed by the two is also called the mesiodistal direction, or mesiodistal direction.

[0041] Furthermore, in the description of direction, "lip-tongue direction" generally refers to two directions. However, "lip-tongue direction" specifically refers to a single direction, that is, from the side of the lips to the side of the tongue, and this is used to distinguish them.

[0042] Please see Figures 1 to 5 The orthodontic system 10 in the first embodiment includes an orthodontic appliance 100 and an orthodontic traction locking element 200. In this embodiment, the orthodontic appliance 100 is described using an orthodontic bracket as an example. Of course, in other embodiments, the orthodontic appliance 100 can also be a buccal tube. Please refer to [further details omitted]. Figure 4 The orthodontic appliance 100 includes a main body 110 and a cover 120. The main body 110 is provided with an archwire groove 111, which runs through the main body 110 in a mesiodistal direction. The archwire groove 111 divides the main body 110 into a first working wing 112 and a second working wing 113. The cover 120 is movably disposed on the second working wing 113, and the cover 120 can open or close the archwire groove 111.

[0043] Please refer to the following: Figure 1 and Figure 5The orthodontic traction locking member 200 is detachably installed on the main body 110. Specifically, the orthodontic traction locking member 200 includes a traction section 210, a clamping section 220, and a limiting section 230. The clamping section 220 includes a main body 221 and two clamping arms 222 extending from the main body 221. The traction section 210 is disposed on the main body 221 and is used to realize the traction function. The two clamping arms 222 extend to opposite sides of the orthodontic appliance 100. Each clamping arm 222 is provided with a limiting section 230, which is used to limit the ligation groove of the orthodontic appliance 100. Each clamping arm 222 is also provided with a locking part 240, which is located on the side of the orthodontic appliance 100 and is used to limit or abut against the archwire 101. For example, the locking part 240 abuts against the bow wire 101, or there is a clearance between the locking part 240 and the bow wire 101 to limit the bow wire 101.

[0044] In this embodiment, when the orthodontic traction locking member 200 is installed on the orthodontic appliance 100, the main body 221 is engaged in the ligation groove, and the two clamping arms 222 are set at a certain angle to the main body 221, such as an obtuse angle or a right angle. The main body 221 can be roughly arc-shaped, or it can be a zigzag shape, or any other structure that can engage in the ligation groove to encircle the main body 110.

[0045] One end of the traction section 210 is fixed to the main body 221, while the other end is suspended. For example, the traction section 210 can be integrally formed with the main body 221, or it can be fixed to the main body 221 by welding or bonding. The traction section 210 can be located in the middle of the main body 221 or on one side of the main body 221, both positions enabling the traction function. The traction section 210 has a generally rod-like structure to stably hold traction accessories such as rubber rings. The traction section 210 can be a cylindrical rod or a square column rod. The suspended end of the traction section 210 is also provided with a ball-shaped anti-detachment head 211, which prevents the rubber ring on the traction section 210 from coming off.

[0046] Specifically, in this embodiment, the limiting segment 230 is located at one end of the clamping arm 222 and is integrally formed with the clamping arm 222. The limiting segment 230 is bendable relative to the clamping arm 222. After bending, the limiting segment 230 is limited within the ligation groove of the orthodontic appliance 100, so that it, together with the main body 221 and the clamping arm 222, encircles the main body 110, so as to install the orthodontic traction locking member 200 on the orthodontic appliance 100.

[0047] Of course, in other embodiments, the limiting segment 230 may include a pair of anti-dislodgement portions located opposite each other on the clamping arm 222, the anti-dislodgement portions being limited within the ligation groove or archwire groove 111 to prevent the clamping segment 220 from separating from the orthodontic appliance 100. It should be noted that in some embodiments, the archwire groove includes a main archwire groove and an auxiliary archwire groove. In these cases, the limiting segment may be limited within the main archwire groove or within the auxiliary archwire groove.

[0048] Please see Figure 1 , 3 5. The locking part 240 is a protrusion protruding from the clamping arm 222. Specifically, in the illustrated embodiment, the protrusion is a block-shaped structure and is integrally formed on the clamping arm 222, which is easy to manufacture and reduces costs. When the orthodontic traction locking member 200 is installed on the orthodontic appliance 100, the block-shaped protrusions on the two clamping arms 222 are located on both sides of the main body 110 and abut against the archwire 101 from the gingival to the occlusal direction. Of course, in other embodiments, the protrusion can also be fixed to the clamping arm 222 by welding or bonding. Alternatively, in other embodiments, the protrusion is formed by bending a portion of the clamping arm 222. Alternatively, the thickness of one end of the clamping arm 222 gradually decreases towards the other end, so that the protruding part forms a protrusion, which can also play a locking role. Alternatively, the protrusion can be a rounded protrusion or a raised dot provided on the clamping arm 222, or a protrusion or a raised dot with smooth lines.

[0049] Please see Figure 4 In this embodiment, a limiting protrusion 223 is also provided on the main body 221, and correspondingly, a limiting groove 114 is provided on the main body 110. The limiting protrusion 223 and the limiting groove 114 cooperate with each other. The limiting protrusion 223 and the limiting groove 114 have the following advantages: First, they can improve the positioning convenience of the orthodontic traction locking member 200 when it is installed on the orthodontic appliance 100. Second, when the limiting section 230 needs to be bent after the orthodontic traction locking member 200 is installed, the limiting protrusion 223 is in the limiting groove 114, which can reduce shaking and thus improve the installation efficiency. Third, they can increase the strength of the orthodontic traction locking member 200.

[0050] During orthodontic treatment, when traction is required, the orthodontic traction locking element 200 is installed on the orthodontic appliance 100. After assembly, the limiting section 230 is positioned within the ligation groove, and the limiting section 230 and the clamping section 220 together encircle the main body 110. At this time, the traction section 210 is used to achieve the traction function, and the locking parts 240 are located on the sides of the orthodontic appliance 100. The locking parts 240 limit or abut against the archwire 101, preventing the archwire 101 from moving relative to the archwire groove 111. Therefore, during traction, the elastic force of the rubber band is transmitted to the second orthodontic appliance 100 through the second traction hook, forcing the second orthodontic appliance 100 to move the second tooth; at the same time, the elastic force is also transmitted to the first orthodontic appliance 100 through the first traction hook. However, since the locking parts 240 directly or indirectly limit the archwire 101, the first orthodontic appliance 100 will not move relative to the archwire 101 or will move a very small distance, thus improving the orthodontic efficiency. When the traction function is not needed, the entire orthodontic traction locking device 200 can be removed from the orthodontic appliance 100.

[0051] Please see Figures 6 to 11 The orthodontic system 10 in the second embodiment differs from that in the first embodiment, including but not limited to the following: the locking part 240 is a protrusion movably disposed on the clamping arm 222. In other words, in the second embodiment, the locking part 240 is movable relative to the clamping arm 222, making it suitable for more work scenarios.

[0052] For example, please see Figure 6 The protrusion can abut or limit the archwire 101 from the occlusal to the gingival direction (as shown by the dotted arrow in the figure). Please refer to Figure 7 The protrusion can limit or abut against the archwire 101 in the gingival-maxillary direction (as shown by the dotted arrow in the figure). Please refer to Figure 8 The protrusion can limit or abut against the archwire 101 from the lingual side to the labial side (as shown by the dotted arrow in the figure). Please refer to... Figure 9 The protrusion can have a clearance with the archwire 101 to limit the archwire 101 from the gingival and lingual directions. It is precisely because the protrusion can move relative to the clamping arm 222 that this is achieved. Figures 6 to 9 The state shown.

[0053] Please see Figure 10 and Figure 11Specifically, the protrusion includes a protrusion 241, a connecting portion 242, and a limiting portion 243. The protrusion 241 and the limiting portion 243 are located at opposite ends of the connecting portion 242. A guide groove 224 is provided on the clamping arm 222, and the connecting portion 242 passes through the guide groove 224. The protrusion 241 and the limiting portion 243 are located on opposite sides of the clamping arm 222. The protrusion 241 is mainly used to abut or limit the bowwire 101. The connecting portion 242 moves within the guide groove 224, and the limiting portion 243 is used to limit the movement and prevent the protrusion 241 from dislodging from the clamping arm 222.

[0054] Specifically, in the second embodiment, the protrusion 241, the connecting portion 242, and the limiting portion 243 are integrally formed, and the limiting portion 243 can be elastically bent relative to the connecting portion 242. Therefore, when assembling the protrusion onto the clamping arm 222, the limiting portion 243 can first pass through the guide groove 224, and then after the protrusion 241 is assembled in place, the limiting portion 243 can be bent relative to the connecting portion 242, thereby limiting and fixing the limiting portion 243 onto the clamping arm 222, and the entire protrusion can be installed onto the clamping arm 222.

[0055] In other embodiments, the protrusion 241 and the connecting portion 242 form a bolt, and the limiting portion 243 is a nut. The bolt body is inserted into the guide groove 224, and then the nut is threaded into the bolt body to limit the bolt on the clamping arm 222. Alternatively, in other embodiments, the locking portion is an elastic element. When the elastic element is used for locking, the locking force is variable, which is gentler and easier to operate.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0058] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. An orthodontic traction locking device for installation on orthodontic appliances, characterized in that, The orthodontic traction locking device includes a traction section, a clamping section, and a limiting section. The clamping section includes a main body and two clamping arms extending from the main body. The traction section is disposed on the main body and is used to realize the traction function. The two clamping arms extend to opposite sides of the orthodontic appliance. Each clamping arm is provided with a limiting section, which is used to limit the ligation groove or archwire groove of the orthodontic appliance. Each clamping arm is also provided with a locking part, which is located on the side of the orthodontic appliance and is used to limit or abut against the archwire.

2. The orthodontic traction locking device according to claim 1, characterized in that, The locking part is a protrusion that extends out of the clamping arm.

3. The orthodontic traction locking device according to claim 2, characterized in that, The protrusion is integrally formed on the clamping arm; or The protrusion is fixed to the clamping arm by a fixing method.

4. The orthodontic traction locking device according to claim 1, characterized in that, The locking part is a protrusion that is movably provided on the clamping arm.

5. The orthodontic traction locking device according to claim 4, characterized in that, The protrusion includes a protrusion, a connecting part, and a limiting part. The protrusion and the limiting part are located at opposite ends of the connecting part. A guide groove is provided on the clamping arm, and the connecting part passes through the guide groove. The protrusion and the limiting part are located on opposite sides of the clamping arm.

6. The orthodontic traction locking device according to claim 5, characterized in that, The protrusion, connecting portion, and limiting portion are integrally formed, and the limiting portion can be elastically bent relative to the connecting portion; or The protrusion and the connecting part form a bolt, and the limiting part is a nut.

7. The orthodontic traction locking device according to claim 1, characterized in that, The locking part is an elastic element.

8. The orthodontic traction locking device according to any one of claims 1 to 7, characterized in that, The limiting segment is bendable relative to the clamping arm to jointly encircle the orthodontic appliance with the clamping segment; or The limiting section includes a pair of anti-detachment parts located opposite each other on the clamping arm, the anti-detachment parts being limited within the ligation groove or the bowwire groove.

9. An orthodontic system, characterized in that, The invention includes an orthodontic appliance and an orthodontic traction locking device as described in any one of claims 1 to 8. The orthodontic appliance comprises a main body and a cover. The main body is provided with an archwire groove that extends through the main body in a mesiodistal direction. The archwire groove divides the main body into a first working wing and a second working wing. The cover is movably disposed on the second working wing and can open or close the archwire groove. The orthodontic traction locking device is detachably installed on the main body. The limiting section is used to limit the archwire groove or ligation groove. The locking part abuts against the archwire to lock the archwire, or there is a clearance between the locking part and the archwire to limit the archwire.

10. The orthodontic system according to claim 9, characterized in that, The main body is provided with a limiting protrusion and a limiting groove, and the limiting protrusion cooperates with the limiting groove.

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