Locking traction assembly

Abstract

The utility model discloses a locking traction assembly. The orthodontic device comprises a first anchorage assembly and a second orthodontic appliance. The first anchorage assembly includes at least one first orthodontic appliance. The first orthodontic appliance comprises a first bracket body, a first traction body and a first locking piece. The first bracket body is provided with a first arch wire groove. The first locking piece is connected with at least one of the first bracket body and the first traction body, and the first locking piece can lock the arch wire in the first arch wire groove. The second orthodontic appliance and the first anchorage assembly are arranged at intervals in the length direction of the arch wire. The second orthodontic appliance includes a second bracket body and a second traction body. And the second bracket body is provided with a second arch wire groove. Wherein the first traction body and the second traction body are used for hanging a traction accessory so as to pull the second orthodontic appliance to move towards the direction close to the first anchorage assembly. According to the locking traction assembly, corrected teeth can accurately move towards the anchorage assembly to the correction position, and the orthodontic correction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a locking traction assembly. Background Technology

[0002] With the improvement of people's living standards, the demand for obtaining and maintaining correct occlusion, improving facial aesthetics, and enhancing oral hygiene is becoming increasingly strong. Consequently, the development of orthodontic appliances for correcting teeth is also improving, but competition is also becoming increasingly fierce.

[0003] In orthodontic treatment, any force applied to a tooth to move it will simultaneously generate a force of the same magnitude but in the opposite direction. The support for this reaction force is called "anchorage." Anchorage is the foundation for generating the corrective force for tooth movement. In traditional orthodontic treatment, some orthodontic appliances are used as anchorage for the teeth that need to be moved. However, because the orthodontic appliances used as anchorage can move relative to the archwire, the teeth that need to be moved cannot accurately reach the correct position, which is detrimental to improving orthodontic efficiency. Utility Model Content

[0004] This disclosure provides a locking traction assembly. This locking traction assembly enables the orthodontic teeth that need to be moved to be precisely moved toward the anchorage assembly to the orthodontic position, thereby improving the efficiency of orthodontic treatment.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, a locking traction assembly is provided, including a first anchorage assembly and a second orthodontic appliance. The first anchorage assembly includes at least one first orthodontic appliance. The first orthodontic appliance includes a first bracket body, a first traction body, and a first locking member. The first bracket body has a first archwire groove for receiving an archwire. The first traction body is fixedly connected to or detachably connected to the first bracket body. The first locking member is connected to at least one of the first bracket body and the first traction body, and the first locking member can at least partially extend into the first archwire groove to lock the archwire within the first archwire groove. The second orthodontic appliance is spaced apart from the first anchorage assembly along the length direction of the archwire. The second orthodontic appliance includes a second bracket body and a second traction body. The second bracket body has a second archwire groove for receiving an archwire. The second traction body is fixedly connected to or detachably connected to the first bracket body. The first traction body and the second traction body are used to suspend traction attachments to pull the second orthodontic appliance toward the first anchorage assembly.

[0007] The technical solution will be further explained below:

[0008] In one embodiment, the first locking member is fixedly connected to the first traction body, and the first locking member and the first traction body are movably connected to the first bracket body, so that the first locking member has a first loosened state of releasing the bowwire and a first locked state of locking the bowwire. When the first locking member is in the first locked state, at least a portion of the first locking member extends into the first bowwire groove to press the bowwire and lock the bowwire in the first bowwire groove.

[0009] In one embodiment, the first bracket body has a first internal threaded hole communicating with the first bow wire groove, and the first locking member includes a first screw that is screwed into the first internal threaded hole, with one end of the first screw fixedly connected to the first traction body. When the first locking member is in the first locking state, the other end of the first screw extends into the first bow wire groove, which can press the bow wire.

[0010] In one embodiment, the first traction body and the first locking member are integrally formed as a first bolt. One end of the first bolt protrudes from the first bracket body for suspending the traction attachment, and the other end of the first bolt is threaded into the first internal thread hole and extends into the first bow wire groove for locking the bow wire.

[0011] In one embodiment, the first traction body is snapped together with the first tray body to switch the first locking member to the first locking state.

[0012] In one embodiment, the first bracket body has a first connecting hole communicating with the first archwire groove, and the first connecting hole is spaced apart from the first traction body. The first traction body is fixedly connected to the first bracket body. The first locking member includes a first connecting portion and a first clamping portion that can pass through the first connecting hole and extend into the first archwire groove. The first connecting portion is fixedly connected to the first connecting hole so that the first clamping portion can clamp the archwire and lock the archwire in the first archwire groove.

[0013] Alternatively, the first bowwire groove may have a first opening into which the bowwire extends. A first locking member extends into the first bowwire groove through the first opening and is used to press the bowwire in place, thereby locking the bowwire within the first bowwire groove.

[0014] Alternatively, the first traction body is rotatably connected to the first bracket body, and has a used state protruding from the first bracket body and a non-used state at least partially retracted within the first bracket body. The first locking member is movably connected to the first bracket body, such that the first locking member has a first loosened state (releasing the bowstring) and a first locked state (locking the bowstring). The first traction body is drive-connected to the first locking member, thereby switching the first locking member between the first loosened state and the first locked state. When the first traction body is in the non-used state, the first locking member is in the first loosened state. When the first traction body is in the used state, the first locking member is in the first locked state.

[0015] In one embodiment, the first anchorage assembly includes at least two first orthodontic appliances, each with a first locking member locking the archwire.

[0016] And / or, the second bracket body is provided with a second internal threaded hole, the second internal threaded hole may or may not be connected to the second bow wire groove, and the second traction body is provided with a second screw that is screwed into the second internal threaded hole.

[0017] In one embodiment, the second traction body is a second bolt, one end of which protrudes from the second bracket body for suspending the traction attachment. The second bolt is provided with a second screw, which does not extend into the second bow wire groove, or the second screw extends into the second bow wire groove but does not abut or contact the bow wire.

[0018] In one embodiment, the locking traction assembly further includes a second anchoring assembly spaced apart from the first anchoring assembly along the length of the archwire. The second anchoring assembly includes at least one third orthodontic appliance. The third orthodontic appliance includes a third bracket body, a third traction body, and a second locking member. The third bracket body has a third archwire groove for receiving the archwire. The third traction body is fixedly connected to or detachably connected to the third bracket body. The second locking member is connected to at least one of the third bracket body and the third traction body, and the second locking member can extend into the third archwire groove to lock the archwire within the third archwire groove. The second orthodontic appliance is disposed between the first anchoring assembly and the second anchoring assembly.

[0019] In one embodiment, the second locking member is fixedly connected to the third traction body, and the second locking member and the third traction body are movably connected to the third bracket body, so that the second locking member has a second released state of releasing the bowwire and a second locked state of locking the bowwire. When the second locking member is in the second locked state, at least a portion of the second locking member extends into the third bowwire groove to press the bowwire and lock the bowwire in the third bowwire groove.

[0020] Alternatively, the third bracket body has a second connecting hole communicating with the third bowwire groove, and the second connecting hole is spaced apart from the third traction body. The second traction body is fixedly connected to the second bracket body. The second locking member includes a second connecting portion and a second clamping portion that can pass through the second connecting hole and extend into the third bowwire groove. The second connecting portion is fixedly connected to the second connecting hole, so that the second clamping portion can clamp the bowwire and lock the bowwire in the third bowwire groove.

[0021] Alternatively, the third bracket body is provided with a third internal threaded hole communicating with the third bow wire groove; the second locking member includes a third screw that is screwed into the third internal threaded hole, one end of the third screw is fixedly connected to the third traction body, and the other end of the third screw can extend into the third bow wire groove to press the bow wire and lock the bow wire in the third bow wire groove.

[0022] Alternatively, the third bowwire groove may have a second opening into which the bowwire extends. The second locking element extends into the third bowwire groove through the second opening and is used to press the bowwire in place, thereby locking the bowwire within the third bowwire groove.

[0023] The technical solutions provided by the embodiments of this disclosure have at least the following beneficial effects:

[0024] When this locking traction assembly is used in orthodontic treatment, the second orthodontic appliance is fixed to the tooth to be moved using adhesive or similar materials. The first orthodontic appliance is fixed to the first tooth adjacent to and spaced from the tooth being moved, using adhesive or other structures. The archwire is then passed through the first archwire slot of the first appliance and the second archwire slot of the second appliance, completing the archwire installation. Next, at least a portion of the first locking element is inserted into the first archwire slot until it presses against the archwire, locking it within the slot. At this point, no relative movement occurs between the first orthodontic appliance and the archwire, facilitating a secure anchorage. The second traction body is used only as a suspension attachment and does not lock the archwire. Then, the traction attachment is connected to both the first and second traction bodies. Under the elastic restoring force of the traction attachment, it gradually pulls the second orthodontic appliance closer to the first anchorage assembly, allowing the tooth to move closer to the first tooth. During orthodontic treatment, the first orthodontic appliance installed on the first tooth is fixed to the archwire through the first locking element, while the second orthodontic appliance on the corrected tooth is not fixed to the archwire. Therefore, the corrected tooth that needs to be moved can be accurately moved towards the corrected position closer to the first tooth, thus improving the efficiency of orthodontic treatment.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0026] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of human teeth in one embodiment.

[0029] Figure 2This is a schematic diagram of an anti-locking traction component applied to orthodontic treatment in one embodiment.

[0030] Figure 3 for Figure 2 The diagram shows a half-section of the locking and traction assembly.

[0031] Figure 4 This is a schematic diagram of the first locking member of the first orthodontic appliance in a first released state, as shown in one embodiment.

[0032] Figure 5 for Figure 4 The diagram shown illustrates the first locking element in the first locking state.

[0033] Figure 6 This is a schematic diagram of the first locking member of the first orthodontic appliance in a first locking state, as shown in another embodiment.

[0034] Figure 7 This is a schematic diagram of the first locking member of the first orthodontic appliance in a first locking state, as shown in another embodiment.

[0035] Figure 8 This is a schematic diagram of the first locking member of the first orthodontic appliance in a first locking state, as shown in another embodiment.

[0036] Figure 9 This is a top view schematic diagram of the first orthodontic appliance shown in one embodiment.

[0037] Figure 10 for Figure 9 The diagram shown illustrates the first locking element in the first locking state.

[0038] Figure 11 for Figure 10 The diagram shown illustrates the first locking element in the first released state.

[0039] Figure 12 This is a schematic diagram of the locking traction assembly applied to orthodontic treatment in yet another embodiment.

[0040] Figure 13 for Figure 12 The diagram shows a half-section of the locking and traction assembly.

[0041] Figure 14 This is a schematic diagram of the third locking member of the third orthodontic appliance in a second locking state, as shown in another embodiment.

[0042] Figure 15 This is a schematic diagram of the third locking member of the third orthodontic appliance in a second locking state, as shown in another embodiment.

[0043] Explanation of reference numerals in the attached figures:

[0044] 10. Locking traction assembly; 100. First anchorage assembly; 110. First orthodontic appliance; 111. First bracket body; 1111. First archwire groove; 1001. First slot; 1112. First internal threaded hole; 1113. Buckle; 1114. First connecting hole; 112. First traction body; 1121. Locking part; 1122. First gear; 113. First locking element; 1131. First screw; 1132. First connecting part; 1133. First rack; 200. Second orthodontic appliance; 210. Second bracket body; 211. 212. Second archwire groove; 220. Second traction body; 221. Second screw; 300. Second anchorage assembly; 310. Third orthodontic appliance; 311. Third bracket body; 3111. Third archwire groove; 3001. Third slot; 3112. Third internal threaded hole; 3113. Second connecting hole; 312. Third traction body; 313. Third locking element; 3131. Third screw; 3132. Second connecting part; 20. Archwire; 30. Traction accessory; 40. Orthodontic tooth; 50. First tooth; 60. Second tooth. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0047] To better understand the orthodontic appliance of this application, we will first use the dental reference frame to understand the orientation of the orthodontic appliance.

[0048] like Figure 1The diagram shows the directional coordinate system for teeth, including the labial, lingual, mesial, distal, occlusal, and gingival surfaces. It should be noted that the terms labial, lingual, mesial, distal, occlusal plane, and gingival surface are industry terms used in orthodontic treatment. Taking the mandibular teeth as an example, the surface of the orthodontic system can be roughly divided into six surfaces. The surface facing the labial side is the labial surface of the orthodontic system, and the surface facing the lingual side is the lingual surface. The direction formed by the labial and lingual surfaces is also called the labiolingual direction. The surface facing the occlusal surface of the maxillary teeth is the occlusal surface of the orthodontic system, also known as the occlusal plane or occlusal end face. The surface facing the gingival tissue of the teeth it adheres to is the gingival end face of the orthodontic system. The occlusal surface and the gingival end face are opposite each other, and the direction formed by the occlusal surface and the gingival surface is also called the gingival direction. The surface of the tooth facing the midline of the tooth is the mesial surface, and the surface opposite the mesial surface is called the distal surface. The direction formed by the mesial and distal surfaces is called the mesiodistal direction.

[0049] Furthermore, in describing the 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, distinguished by whether or not a short horizontal line is added.

[0050] To better understand the orthodontic appliance of this application, the components and spaces described below are also described using the reference frame of the mandibular teeth, such as the labial-lingual direction, the maxillogingival direction, and the mesiodistal direction, but this does not unduly limit the orthodontic correction system and space of this application.

[0051] like Figure 2 as well as Figure 3As shown, in some embodiments of this disclosure, a locking traction assembly 10 is provided, including a first anchorage assembly 100 and a second orthodontic appliance 200. The first anchorage assembly 100 includes at least one first orthodontic appliance 110. The first orthodontic appliance 110 includes a first bracket body 111, a first traction body 112, and a first locking member 113. The first bracket body 111 has a first archwire groove 1111 for receiving the archwire 20. The first traction body 112 is fixedly connected to or detachably connected to the first bracket body 111. The first locking member 113 is connected to at least one of the first bracket body 111 and the first traction body 112, and the first locking member 113 can at least partially extend into the first archwire groove 1111 to lock the archwire 20 within the first archwire groove 1111. The second orthodontic appliance 200 is spaced apart from the first anchorage assembly 100 along the length direction of the archwire 20. The second orthodontic appliance 200 includes a second bracket body 210 and a second traction body 220. The second bracket body 210 has a second archwire groove 211 for receiving the archwire 20. The second traction body 220 is fixedly connected to or detachably connected to the first bracket body 111. The first traction body 112 and the second traction body 220 are used to suspend the traction attachment 30 to pull the second orthodontic appliance 200 toward the first anchorage assembly 100.

[0052] In orthodontic treatment, a group of teeth that are adjacent to and spaced apart from the orthodontic tooth 40 in the direction of movement of the orthodontic tooth 40 are designated as the first tooth 50. The first tooth 50 corresponds one-to-one with the first orthodontic appliance 110, and there is at least one of them.

[0053] When the locking traction assembly 10 is applied to orthodontic treatment, the second orthodontic appliance 200 is fixed to the orthodontic tooth 40 that needs to be moved using adhesive or other structures. The first orthodontic appliance 110 is fixed to the corresponding first tooth 50 using adhesive or other structures. Then, the archwire 20 is passed through the first archwire groove 1111 of the first orthodontic appliance 110 and the second archwire groove 211 of the second orthodontic appliance 200, completing the installation of the archwire 20. Next, the first locking member is inserted at least partially into the first archwire groove 1111 until the first locking member presses against the archwire, locking the archwire 20 within the first archwire groove 1111. At this time, the first orthodontic appliance 110 on the first tooth 50 is fixedly connected by the archwire 20 and cannot move relative to the archwire 20, facilitating its use as a secure anchor. The second traction body 220 is only used as a suspension traction accessory and does not lock the archwire. Then, the traction attachment 30 is connected to the first traction body 112 and the second traction body 220 respectively. Under the traction force of the traction attachment 30, the traction attachment 30 gradually pulls the second orthodontic appliance 200 towards the direction closer to the first anchorage component 100, so that the orthodontic tooth 40 can move towards the direction closer to the first tooth 50. During orthodontic treatment, since the first orthodontic appliance 110 installed on the first tooth 50 is reliably fixed to the archwire 20 through the first locking member 113, while the second orthodontic appliance 200 on the orthodontic tooth is not fixed to the archwire, the orthodontic tooth 40 that needs to be moved can be accurately moved towards the direction closer to the first tooth 50 to the orthodontic position, improving the efficiency of orthodontic treatment.

[0054] It should be noted that the traction attachment can be an elastic band, elastic chain, or traction wire, etc. The first orthodontic appliance 110 can be a bracket or a buccal tube. Similarly, the second orthodontic appliance 200 can be a bracket or a buccal tube.

[0055] In some embodiments, the first anchorage assembly 100 includes at least two first orthodontic appliances 110, each locking the archwire 20 via a first locking member 113. Thus, by using at least two first orthodontic appliances 110 to form anchorage, at least two first teeth 50 are fixed together to form a single unit, resulting in more stable anchorage and improved orthodontic efficiency.

[0056] like Figures 3 to 5As shown, in some embodiments, the first locking member 113 is fixedly connected to the first traction body 112, and the first locking member 113 and the first traction body 112 are movably connected to the first bracket body 111, so that the first locking member 113 has a first loosened state of releasing the archwire 20 and a first locked state of locking the archwire 20. When the first locking member 113 is in the first locked state, at least a portion of the first locking member 113 extends into the first archwire groove 1111 to press the archwire 20, thereby locking the archwire 20 in the first archwire groove 1111. In this way, fixing the first locking member 113 to the first traction body 112 makes the structure of the first orthodontic appliance 110 more compact, the appearance more aesthetically pleasing, and also helps to reduce the feeling of foreign objects. When the first locking member 113 is in the first released state, it facilitates the opening of the first archwire groove 1111, allowing the archwire 20 to be inserted into the first archwire groove 1111 and move within it. When the first orthodontic appliance 110 is needed for anchorage, the first locking member 113 is switched to the first locking state, at least a portion of which is inserted into the first archwire groove 1111, pressing the archwire 20 to lock it within the first archwire groove 1111. In this case, the archwire 20 is locked within the first archwire groove 1111 by the first locking member 113, and there is no relative movement between the archwire 20 and the first orthodontic appliance 110. The archwire 20, the first locking member 113, the first orthodontic appliance 110, and the first tooth 50 together form the anchorage.

[0057] It should be noted that there are various ways to achieve the "movable connection" between the first locking member 113 and the first traction body 112 and the first bracket body 111, including but not limited to snap-fit ​​connection, threaded connection, etc.

[0058] Optionally, such as Figure 3 As shown, in some embodiments, the first bracket body 111 is provided with a first internal threaded hole 1112 communicating with the first bow wire groove 1111, and the first locking member 113 includes a first screw 1131 screwed into the first internal threaded hole 1112, one end of the first screw 1131 being fixedly connected to the first traction body 112. When the first locking member 113 is in the first locking state, the other end of the first screw 1131 extends into the first bow wire groove 1111, which can press the bow wire 20. Thus, the screwed engagement between the first screw 1131 and the first internal threaded hole 1112 facilitates the switching between the first unlocked state and the first locking state of the first locking member 113.

[0059] In addition, the engagement of the first screw 1131 with the first internal threaded hole 1112 allows for flexible adjustment of the length of the first locking member 113 extending into the first bow wire groove 1111, in order to adapt to locking and tightening of bow wires 20 of different sizes.

[0060] Once the orthodontic tooth 40 has been moved to the target position, the first screw 1131 can be unscrewed from the first internal threaded hole 1112, and the first traction body 112 can be removed from the first bracket body 111, thereby reducing the foreign body sensation of the first orthodontic appliance 110 and improving the user's comfort when wearing the first orthodontic appliance 110.

[0061] In some embodiments, the first traction body 112 and the first locking member 113 are integrally formed as a first bolt. One end of the first bolt protrudes from the first bracket body 111 for suspending the traction accessory 30, and the other end of the first bolt is threaded into the first internal threaded hole 1112 and extends into the first archwire groove 1111 to lock the archwire 20. This allows the nut of the first bolt to be used as the first traction body 112, while the other end of the first bolt is used to press the archwire 20, thus fixing the first orthodontic appliance 110 to the archwire 20. The first bolt can be made as a standard part, which is easy to implement and helps reduce the manufacturing cost of the first orthodontic appliance 110.

[0062] like Figure 3 As shown, in some embodiments, the second bracket body 210 is provided with a second internal threaded hole 212, which may or may not be connected to the second archwire groove 211. The second traction body 220 is provided with a second screw 221 that is screwed into the second internal threaded hole 212. Thus, the screwed engagement of the second screw 221 with the second internal threaded hole 212 facilitates the assembly and disassembly of the second traction body 220. When it is necessary to connect the traction accessory 30, the second screw 221 is screwed into the second internal threaded hole 212 to fix the second traction body 220 onto the second bracket body 210. After the orthodontic treatment of the orthodontic tooth 40 is completed, the second screw 221 can be unscrewed from the second internal threaded hole 212, and the second traction body 220 can be removed, thereby reducing the foreign body sensation of the second orthodontic appliance 200 and improving the user's comfort when wearing the second orthodontic appliance 200.

[0063] In some embodiments, the second traction body 220 is a second bolt, one end of which protrudes from the second bracket body 210 for suspending the traction attachment 30. The second bolt is provided with a second screw 221, which does not extend into the second archwire groove 212, or the second screw 221 extends into the second archwire groove 212 but does not abut against or contact the archwire 20. Thus, the second traction body 220 is only used for suspending the traction attachment 30 and does not have a locking function, which can prevent the second orthodontic appliance 200 from being fixed to the archwire 20 due to the doctor's operation error, thereby affecting the movement of the orthodontic tooth 40.

[0064] In addition, the second bolt can be made into a standard part, which is easy to implement and helps to reduce the manufacturing cost of the second orthodontic appliance 200.

[0065] It should be noted that the first locking element is screwed into the first bracket body to lock the bow wire, or the bow wire can be tightened by a clamping structure such as a roller, push plate, push rod, or clamping plate.

[0066] like Figure 4 as well as Figure 5 As shown, in some embodiments, the first traction body 112 is snap-fitted to the first bracket body 111 to switch the first locking member 113 to the first locking state. Thus, the snap-fit ​​connection between the first traction body 112 and the first bracket body 111 facilitates easy assembly and disassembly.

[0067] Optionally, one of the first traction body 112 and the first tray body 111 is provided with a locking part 1121, and the other is provided with a buckle part 1113 that engages with the locking part 1121.

[0068] like Figure 6 as well as Figure 7 As shown, in some embodiments, the first bracket body 111 is provided with a first connecting hole 1114 communicating with the first archwire groove 1111, and the first connecting hole 1114 is spaced apart from the first traction body 112. The first traction body 112 is fixedly connected to the first bracket body 111. The first locking member 113 includes a first connecting portion 1132 and a first pressing portion that can pass through the first connecting hole 1114 and extend into the first archwire groove 1111. The first connecting portion 1132 is fixedly connected to the first connecting hole 1114 so that the first pressing portion can press the archwire 20 and lock the archwire 20 in the first archwire groove 1111. In this way, through the connection of the first connecting hole 1114 and the first connecting portion 1132, it is easy to fix the first locking member 113 independently and the first traction body 112 to the first bracket body 111, so that the first traction body 112 and the first locking member 113 can be flexibly arranged on the first bracket body 111 to meet different correction design needs.

[0069] It should be noted that there are multiple ways to fix the first connecting hole 1114 and the first connecting part 1132. For example, as Figure 6 As shown, the first connecting hole 1114 is a threaded hole, and the first connecting part 1132 is a screw. Alternatively, as... Figure 7 As shown, the first connecting hole 1114 is a snap-fit ​​hole, and the first connecting part 1132 is a connecting body that engages with the snap-fit ​​hole. Alternatively, the first connecting hole 1114 is a pin hole, and the first connecting part 1132 is a fixing pin that is interference-fitted with the pin hole.

[0070] like Figure 8As shown, in some embodiments, the first archwire groove 1111 is provided with a first slot 1001 into which the archwire 20 extends. The first locking member 113 extends into the first archwire groove 1111 through the first slot 1001 and is used to press the archwire 20 to lock the archwire 20 in the first archwire groove 1111. In this way, the first locking member 113 is inserted into the first archwire groove 1111 through the first slot 1001 to press the archwire 20. The fixation of the first orthodontic appliance 110 and the archwire 20 can ensure the strength of the first bracket body 111, which is conducive to the miniaturization of the first bracket body 111.

[0071] like Figures 9 to 11 As shown, in some embodiments, the first traction body 112 is rotatably connected to the first bracket body 111, and has a used state protruding from the first bracket body 111 and a non-used state at least partially retracted within the first bracket body 111. The first locking member 113 is movably connected to the first bracket body 111, such that the first locking member 113 has a first loosened state (releasing the bowwire 20) and a first locked state (locking the bowwire 20). The first traction body 112 and the first locking member 113 are drive-connected to switch the first locking member 113 between the first loosened state and the first locked state. When the first traction body 112 is in the non-used state, the first locking member 113 is in the first loosened state. When the first traction body 112 is in the used state, the first locking member 113 is in the first locked state. Thus, when the first orthodontic appliance 110 does not need to be connected to the traction attachment 30, the first traction body 112 can be rotated, causing the first traction body 112 to retract at least partially within the first bracket body 111, switching to a non-use state. This reduces the foreign body sensation of the first orthodontic appliance 110 and improves the user's comfort when wearing it. When the first orthodontic appliance 110 needs to be connected to the traction attachment 30, the first traction body 112 can be rotated, causing it to protrude from the first bracket body 111, switching to a use state. Simultaneously, the first locking member 113 is switched to the first locking state, thus fixing the first orthodontic appliance 110 to the archwire 20 and facilitating anchorage formation.

[0072] It should be noted that there are many ways to achieve the "transmission connection" between the first traction body 112 and the first locking member 113, including eccentric transmission, gear and rack transmission, swing arm transmission, etc.

[0073] Optionally, in some embodiments, the first traction body 112 is provided with a gear, and the first locking member 113 is provided with a rack that engages with the gear transmission.

[0074] like Figure 12 as well as Figure 13As shown, in some embodiments, the locking traction assembly 10 further includes a second anchorage assembly 300 spaced apart from the first anchorage assembly 100 along the length direction of the archwire 20. The second anchorage assembly 300 includes at least one third orthodontic appliance 310. The third orthodontic appliance 310 includes a third bracket body 311, a third traction body 312, and a second locking member 313. The third bracket body 311 has a third archwire groove 3111 for receiving the archwire 20. The third traction body 312 is fixedly connected to or detachably connected to the third bracket body 311. The second locking member is connected to at least one of the third bracket body 311 and the third traction body 312, and the second locking member can extend into the third archwire groove 3111 to lock the archwire 20 within the third archwire groove 3111. The second orthodontic appliance 200 is disposed between the first anchorage assembly 100 and the second anchorage assembly 300. Thus, in orthodontic treatment, the second tooth 60 is set in the opposite direction of the movement of the orthodontic tooth 40 and is adjacent to the orthodontic tooth 40. The second tooth 60 corresponds one-to-one with the third orthodontic appliance 310, and there is at least one of them.

[0075] When the locking traction assembly 10 is applied to orthodontic treatment, the second orthodontic appliance 200 is fixed to the tooth 40 that needs to be moved using adhesive or other structures. The first orthodontic appliance 110 is fixed to the corresponding first tooth 50 using adhesive or other structures. The third orthodontic appliance 310 is fixed to the corresponding second tooth 60 using adhesive or other structures. Then, the archwire 20 is passed through the first archwire groove 1111 of the first orthodontic appliance 110, the second archwire groove 211 of the second orthodontic appliance 200, and the third archwire groove 3111 of the third orthodontic appliance 310, respectively, and the installation of the archwire 20 is completed. Next, the first locking member is inserted into the first archwire groove 1111 until the first locking member presses against the archwire, locking the archwire 20 in the first archwire groove 1111. At this time, the first orthodontic appliance 110 on the first tooth 50 is fixedly connected by the archwire 20 and cannot move relative to the archwire 20, which facilitates its use as a stable anchorage. The second traction body 220 is used only as a suspension attachment and does not lock the archwire. The third locking member 313 is inserted into the third archwire groove 3111 until it presses against the archwire 20, locking it within the groove. At this point, the third orthodontic appliance 310 on the second tooth 30 is fixedly connected to the archwire 20 and cannot move relative to it, facilitating the formation of a secure second anchorage. Then, the traction attachment 30 is connected to both the first traction body 112 and the second traction body 220. Under the traction force of the attachment 30, it gradually pulls the second orthodontic appliance 200 towards the first anchorage assembly 100, allowing the orthodontic tooth 40 to move towards the first tooth 50. During orthodontic treatment, the first orthodontic appliance 110 installed on the first tooth 50 is reliably fixed to the archwire 20 via the first locking element 113, and the third orthodontic appliance 310 installed on the second tooth 60 is reliably fixed to the archwire 20 via the third locking element 313. This allows the archwire 20, located between the first and third orthodontic appliances 110 and 310, to function as a guide. The second orthodontic appliance 200 on the treated tooth is not fixed to the archwire, allowing the archwire, acting as a guide, to precisely guide the treated tooth 40 towards the corrective position closer to the first tooth 50, thus improving orthodontic treatment efficiency.

[0076] It should be noted that the structure of the second anchorage component 300 can be completely identical to, partially identical to, or completely different from the structure of the first anchorage component 100. The choice can be made according to actual needs. The first orthodontic appliance 110 can be a bracket or a buccal tube. Similarly, the second orthodontic appliance 200 can be a bracket or a buccal tube. Similarly, the third orthodontic appliance 310 can be a bracket or a buccal tube.

[0077] like Figure 13As shown, in some embodiments, the second locking member is fixedly connected to the third traction body 312, and the second locking member and the third traction body 312 are movably connected to the third bracket body 311, so that the second locking member has a second loosened state of releasing the archwire 20 and a second locked state of locking the archwire 20. When the second locking member is in the second locked state, at least a portion of the second locking member extends into the third archwire groove 3111 to press the archwire 20, thereby locking the archwire 20 in the third archwire groove 3111. In this way, fixing the third locking member 313 to the third traction body 312 makes the structure of the third orthodontic appliance 310 more compact, the appearance more aesthetically pleasing, and also helps to reduce the feeling of foreign objects. When the third locking member 313 is in the second loosened state, it is convenient to open the third archwire groove 3111, making it convenient to insert the archwire 20 into the third archwire groove 3111, so that the archwire 20 can move within the third archwire groove 3111. When the third orthodontic appliance 310 is needed for anchorage, the third locking member 313 is switched to the second locking state. At least a portion of the third locking member 313 is inserted into the third archwire groove 3111, and the archwire 20 is pressed to lock the archwire 20 within the third archwire groove 3111. Thus, the archwire 20 is used to connect the third tooth to other structures into a single unit, forming a reliable fixed anchorage.

[0078] It should be noted that there are various ways to achieve the "movable connection" between the first locking member 113 and the first traction body 112 and the first bracket body 111, including but not limited to snap-fit ​​connection, threaded connection, etc.

[0079] like Figure 13 As shown, in some embodiments, the third bracket body 311 is provided with a third internal threaded hole 3112 communicating with the third bow wire groove 3111; the second locking member includes a third screw 3131 screwed into the third internal threaded hole 3112. One end of the third screw 3131 is fixedly connected to the third traction body 312, and the other end of the third screw 3131 can extend into the third bow wire groove 3111 to press the bow wire 20, thereby locking the bow wire 20 in the third bow wire groove 3111. In this way, the screwed engagement between the third screw 3131 and the third internal threaded hole 3112 facilitates the switching between the second loosened state and the second locking state of the third locking member 313.

[0080] In addition, the engagement of the third screw 3131 with the third internal threaded hole 3112 is self-locking, which facilitates flexible adjustment of the length of the third locking member 313 extending into the third bow wire groove 3111 to adapt to locking and tightening of bow wires 20 of different sizes.

[0081] After the orthodontic treatment of tooth 40 is completed, the third screw 3131 can be unscrewed from the third internal thread, and the third traction body 312 can be removed from the third bracket body 311, reducing the foreign body sensation of the third orthodontic appliance 310 and improving the user's comfort when wearing the third orthodontic appliance 310.

[0082] In some embodiments, the third traction body 312 and the first three-stop locking member are integrally formed as a third bolt. This allows the nut of the third bolt to be used as the third traction body 312, while the other end of the third bolt is used to press the archwire 20, thus fixing the third orthodontic appliance 310 to the archwire 20. This is easy to implement and helps reduce the manufacturing cost of the third orthodontic appliance 310.

[0083] It should be noted that the third locking element is screwed into the third bracket body to lock the bow wire, or the bow wire can be tightened by a clamping structure such as a roller, push plate, top rod, or clamping plate.

[0084] like Figure 14 As shown, in some embodiments, the third bracket body 311 is provided with a second connecting hole 3113 communicating with the third archwire groove 3111, and the second connecting hole 3113 is spaced apart from the third traction body 312. The second traction body 220 is fixedly connected to the second bracket body 210. The second locking member includes a second connecting portion 3132 and a second pressing portion that can pass through the second connecting hole 3113 and extend into the third archwire groove 3111. The second connecting portion 3132 is fixedly connected to the second connecting hole 3113 so that the second pressing portion can press the archwire 20 and lock the archwire 20 in the third archwire groove 3111. Thus, through the connection of the second connecting hole 3113 and the second connecting portion 3132, it is easy to fix the third locking member 313 independently and the third traction body 312 to the third bracket body 311, so that the third traction body 312 and the third locking member 313 can be flexibly arranged on the third bracket body 311 to meet different correction design needs.

[0085] It should be noted that there are multiple ways to fix the second connecting hole 3113 and the second connecting part 3132. For example, as Figure 14 As shown, the second connecting hole 3113 is a threaded hole, and the second connecting part 3132 is a screw. Alternatively, the second connecting hole 3113 is a locking hole, and the second connecting part 3132 is a connecting body that engages with the locking hole. Alternatively, the second connecting hole 3113 is a pin hole, and the second connecting part 3132 is a fixing pin that is interference-fitted with the pin hole.

[0086] like Figure 15As shown, in some embodiments, the third archwire groove 3111 is provided with a second opening into which the archwire 20 extends. A second locking member extends into the third archwire groove 3111 through the second opening and is used to press the archwire 20, thereby locking the archwire 20 within the third archwire groove 3111. Thus, by inserting the third locking member 313 into the third archwire groove 3111 through the second opening to press the archwire 20, the fixation of the third orthodontic appliance 310 to the archwire 20 is achieved while maintaining the strength of the third bracket body 311, which is beneficial for miniaturizing the third bracket body 311.

[0087] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0088] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0089] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0090] In this application, unless otherwise expressly 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.

[0091] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable. Examples include socketing, snap-fitting, integral molding, and welding, which are feasible in conventional technologies and will not be elaborated upon here.

[0092] 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.

[0093] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, 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 application, and these all fall within the protection scope of this application.

Claims

1. A locking traction assembly, characterized in that, include: The first bracing assembly includes at least one first orthodontic appliance, the first orthodontic appliance including a first bracket body, a first traction body and a first locking member, the first bracket body having a first archwire groove for receiving the archwire, the first traction body being fixedly connected to or detachably connected to the first bracket body, the first locking member being connected to at least one of the first bracket body and the first traction body, and the first locking member being able to at least partially extend into the first archwire groove to lock the archwire in the first archwire groove; as well as The second orthodontic appliance is spaced apart from the first anchorage component along the length of the archwire. The second orthodontic appliance includes a second bracket body and a second traction body. The second bracket body is provided with a second archwire groove for accommodating the archwire. The second traction body is fixedly connected to or detachably connected to the first bracket body. The first traction body and the second traction body are used to suspend traction attachments to pull the second orthodontic appliance toward the direction of the first anchorage assembly.

2. The anti-locking traction assembly according to claim 1, characterized in that, The first locking member is fixedly connected to the first traction body, and the first locking member and the first traction body are movably connected to the first bracket body, so that the first locking member has a first loosened state of loosening the bow wire and a first locked state of locking the bow wire. When the first locking member is in the first locking state, at least a portion of the first locking member extends into the first bow wire groove to press the bow wire and lock the bow wire in the first bow wire groove.

3. The anti-locking traction assembly according to claim 2, characterized in that, The first bracket body is provided with a first internal threaded hole communicating with the first bow wire groove, and the first locking member includes a first screw rod that is screwed into the first internal threaded hole, and one end of the first screw rod is fixedly connected to the first traction body. When the first locking member is in the first locking state, the other end of the first screw extends into the first bow wire groove, which can press the bow wire.

4. The anti-locking traction assembly according to claim 3, characterized in that, The first traction body and the first locking member are integrally formed as a first bolt. One end of the first bolt protrudes from the first bracket body for suspending the traction attachment, and the other end of the first bolt is threaded into the first internal thread hole and extends into the first bow wire groove for locking the bow wire.

5. The anti-locking traction assembly according to claim 2, characterized in that, The first traction body is snapped together with the first tray body to switch the first locking member to the first locking state.

6. The anti-locking traction assembly according to claim 1, characterized in that, The first bracket body is provided with a first connecting hole communicating with the first archwire groove. The first connecting hole is spaced apart from the first traction body, and the first traction body is fixedly connected to the first bracket body. The first locking member includes a first connecting part and a first pressing part that can pass through the first connecting hole and extend into the first archwire groove. The first connecting part is fixedly connected to the first connecting hole so that the first pressing part can press the archwire and lock the archwire in the first archwire groove. Alternatively, the first bowwire groove is provided with a first opening for the bowwire to extend into; the first locking member extends into the first bowwire groove through the first opening and is used to press the bowwire to lock the bowwire in the first bowwire groove. Alternatively, the first traction body is rotatably connected to the first bracket body and has a used state that protrudes from the first bracket body and a non-used state that is at least partially retracted into the first bracket body; the first locking member is movably connected to the first bracket body so that the first locking member has a first loosened state that releases the bowwire and a first locked state that locks the bowwire. The first traction body is connected to the first locking member in a transmission manner, so as to drive the first locking member to switch between the first released state and the first locked state; when the first traction body is in the non-use state, the first locking member is in the first released state; when the first traction body is in the use state, the first locking member is in the first locked state.

7. The anti-locking traction assembly according to claim 1, characterized in that, The first anchorage assembly includes at least two of the first orthodontic appliances, and each of them is locked by the first locking member to secure the archwire; And / or, the second bracket body is provided with a second internal threaded hole, the second internal threaded hole may or may not be connected to the second bow wire groove, and the second traction body is provided with a second screw that is screwed into the second internal threaded hole.

8. The anti-locking traction assembly according to claim 7, characterized in that, The second traction body is a second bolt. One end of the second bolt protrudes from the second bracket body for suspending the traction attachment. The second bolt is provided with a second screw. The second screw does not extend into the second bow wire groove, or the second screw extends into the second bow wire groove but does not abut against or contact the bow wire.

9. The anti-locking traction assembly according to any one of claims 1 to 8, characterized in that, The locking traction assembly further includes a second anchorage assembly spaced apart from the first anchorage assembly along the length direction of the archwire. The second anchorage assembly includes at least one third orthodontic appliance. The third orthodontic appliance includes a third bracket body, a third traction body, and a second locking member. The third bracket body has a third archwire groove for accommodating the archwire. The third traction body is fixedly connected to or detachably connected to the third bracket body. The second locking member is connected to at least one of the third bracket body and the third traction body, and the second locking member can extend into the third archwire groove to lock the archwire in the third archwire groove. The second orthodontic appliance is disposed between the first anchorage assembly and the second anchorage assembly.

10. The anti-locking traction assembly according to claim 9, characterized in that, The second locking member is fixedly connected to the third traction body, and the second locking member and the third traction body are movably connected to the third bracket body, so that the second locking member has a second loosened state that loosens the bow wire and a second locked state that locks the bow wire. When the second locking member is in the second locking state, at least a portion of the second locking member extends into the third bow wire groove to press the bow wire and lock the bow wire in the third bow wire groove. Alternatively, the third bracket body is provided with a second connecting hole communicating with the third bow wire groove, the second connecting hole being spaced apart from the third traction body, and the third traction body being fixedly connected to the third bracket body; the second locking member includes a second connecting part and a second pressing part that can pass through the second connecting hole and extend into the third bow wire groove, the second connecting part being fixedly connected to the second connecting hole so that the second pressing part can press the bow wire and lock the bow wire in the third bow wire groove; Alternatively, the third bracket body is provided with a third internal threaded hole communicating with the third bow wire groove; the second locking member includes a third screw that is screwed into the third internal threaded hole, one end of the third screw is fixedly connected to the third traction body, and the other end of the third screw can extend into the third bow wire groove to press the bow wire and lock the bow wire in the third bow wire groove. Alternatively, the third bowwire groove may have a second opening for the bowwire to extend into; the second locking member extends into the third bowwire groove through the second opening and is used to press the bowwire in order to lock the bowwire in the third bowwire groove.

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