An interface bent free hook and its orthodontic assembly

Abstract

This utility model discloses a free traction hook with a bent interface and its orthodontic components, including: a hook body, a first clamping part, and a second clamping part; both the first clamping part and the second clamping part are connected to the upper end of the hook body, and the first clamping part and the second clamping part are respectively provided with a first clamping neck and a second clamping neck for clamping the archwire; the first clamping part and the second clamping part are inclined to each other, and together they form a relative bent structure. Compared with the previous traction hooks with straight joints, which are difficult to clamp onto lingual archwires with multiple bends, this utility model can be used to match personalized lingual archwires with various bend angles, and can be mass-produced in a standardized manner. When patients need to add a traction device during the orthodontic process, it can be used directly without having to place a separate order with the factory for customization. In this way, the medical costs for patients can be significantly reduced and the treatment cycle can be shortened.

Description

Technical Field

[0001] This utility model relates to the field of orthodontics, specifically to a free traction hook with a bent interface, and an orthodontic component including such a free traction hook. Background Technology

[0002] Traction devices are widely used in orthodontics to assist in tooth movement and adjust occlusion. They are suitable for patients who need precise control of tooth position or to improve skeletal problems. Traction devices typically consist of traction hooks and rubber bands: the traction hooks are mounted on the appliance, providing stable anchorage as a force application basis, while the rubber bands or springs apply directional force to guide the teeth to the ideal position. This type of orthodontic treatment is often used to address problems such as protrusion, deep overbite, and skeletal malocclusion.

[0003] Long traction hooks are widely used in retracting anterior teeth and closing anterior interdental spaces, and can be used in both labial and lingual orthodontic treatments. For labial orthodontic treatment, the archwire is usually a straight wire with an arc shape, and the spacing between the brackets on the labial side is relatively large. Therefore, the clamps on the traction hooks that connect to the archwire can be made straight (the clamps and traction hooks are perpendicular to each other). Such traction hooks can be mass-produced and standardized. When traction hooks are needed clinically, the physician only needs to take a pre-made traction hook and clamp the clamps onto the archwire.

[0004] However, existing traction hooks often exhibit mismatch issues when applied to lingual orthodontics. This is because the spacing between lingual brackets in lingual orthodontics is relatively small (the inner arch has a greater curvature than the outer arch), and the archwire segments between brackets often have bends at uncertain angles (as the archwire is individually designed based on the case, the bend angle of the archwire worn by different patients varies). Therefore, traction hooks with straight connectors are difficult to use in lingual orthodontics. To address this, lingual traction hooks can only be custom-made for each patient's specific case, rather than being mass-produced and standardized. This results in higher medical costs for patients and a longer production cycle for customized hooks. Utility Model Content

[0005] To overcome the shortcomings of the prior art, one objective of this utility model is to provide a free traction hook with a bent interface, and another objective is to provide an orthodontic component including such a free traction hook, which can solve the problem that existing traction hooks cannot be well matched for use in lingual orthodontic treatment.

[0006] This utility model is achieved through the following technical solution:

[0007] A free-floating traction hook with a bent interface includes: a hook body having a hook portion for attaching an elastic element; a first clamping portion connected to the upper end of the hook body; the first clamping portion having a first clamping neck for clamping onto a bowwire; a second clamping portion connected to the upper end of the hook body; the first clamping portion having a second clamping neck for clamping onto a bowwire; the first clamping portion and the second clamping portion being located on opposite sides of the hook body; the first clamping portion and the second clamping portion being inclined relative to each other, together forming a relatively bent structure.

[0008] Furthermore, the first clamping part, the second clamping part, and the hook body are integrally formed.

[0009] Furthermore, the free-floating traction hook of the interface bend is made of any one of stainless steel, titanium alloy, or metal ceramic.

[0010] Furthermore, the first clamping portion extends a first extension portion along the outer side of the first clamp neck; the second clamping portion extends a second extension portion along the outer side of the second clamp neck; the first extension portion and the second extension portion are arranged symmetrically.

[0011] Furthermore, the shape of the hook body can be any one of a question mark hook, a spiral hook, or a T-hook.

[0012] Furthermore, the cross-sectional shape of the first clamp neck and the second clamp neck is any one of the following: circular, square, elliptical, horseshoe-shaped, polygonal, or irregular.

[0013] Furthermore, several anti-slip grooves are protruding on the inner sidewalls of the first clamp neck and the second clamp neck.

[0014] An orthodontic component, the orthodontic component including the aforementioned free traction hook with bent interface, further including: an archwire; at least one of the first clamping portion and the second clamping portion is clamped to the outside of the archwire.

[0015] Furthermore, the bowwire also has a bend, and the first clamping part and the second clamping part are respectively clamped on the two opposite ends of the bend.

[0016] Furthermore, the orthodontic component also includes: an elastic element; the end of the elastic element is attached to the hook portion of the hook body.

[0017] Compared with existing technologies, the beneficial effects that this utility model can achieve are as follows:

[0018] For lingual orthodontic treatment, the spacing between lingual brackets is relatively small, and the transition section connecting the lingual archwires between each bracket often has a bend. A straight-joint traction hook is difficult to clamp onto the lingual archwire. When the patient needs to use the traction device, the pre-made free traction hook of this invention is used. Because the first and second clamping parts are inclined relative to each other, they can respectively clamp and hold the two ends of the archwire bend, completing the installation of the traction hook. Compared to the previous traction hooks with straight joints that were difficult to clamp onto lingual archwires with multiple bends, this invention can be used with personalized lingual archwires with various bend angles, and can be mass-produced in a standardized manner. When the patient needs to add a traction device during orthodontic treatment, it can be used directly without needing to place a separate order with the factory for customization. This significantly reduces the patient's medical costs and shortens the treatment cycle. Attached Figure Description

[0019] Figure 1 The image shown is a 3D view of the free-floating traction hook;

[0020] Figure 2 The image shown is a front view of the free-floating traction hook;

[0021] Figure 3 The diagram shown is a schematic of the installation of the free-floating traction hook;

[0022] Figure 4 As shown Figure 3 The front view;

[0023] Figure 5 The diagram shown is a schematic of the archwire structure.

[0024] In the figure: 10, free-floating traction hook; 11, first clamping part; 111, first clamp neck; 112, first extension part; 12, second clamping part; 121, second clamp neck; 122, second extension part; 13, hook body; 20, bow wire; 21, bending part. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0027] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model discloses a free traction hook 10 with a bent interface, which is an orthodontic accessory used in orthodontic treatment systems. (See also...) Figures 1-4 This free-floating traction hook 10 includes a hook body 13, a first clamping part 11, and a second clamping part 12. Both the first clamping part 11 and the second clamping part 12 are connected to the upper end of the hook body 13. The first clamping part 11 and the second clamping part 12 are respectively provided with a first clamping neck 111 and a second clamping neck 121 for clamping the archwire 20. Specifically, the clamping neck has a locking structure suitable for fastening the archwire 20 into it, so that the traction hook is attached to the archwire 20. During installation, the locking is fastened onto the archwire 20, and then the opening of the clamping neck is gently clamped using orthodontic pliers or other tools. The clamping neck will undergo a slight deformation, thereby clamping it onto the archwire 20. In particular, the first clamping part 11 and the second clamping part 12 are located on both sides of the hook body 13, and the first clamping part 11 and the second clamping part 12 are inclined towards each other, forming a relative bent structure.

[0030] For lingual orthodontic treatment, the spacing between lingual brackets is relatively small, and the transition section connecting the two lingual brackets often has a bend (such as the common mushroom bend). See details. Figure 5 Therefore, a straight-jointed traction hook is difficult to clamp onto the lingual archwire 20. In this embodiment, when the patient needs to use the traction device, the finished free traction hook 10 of this invention is taken. Since the first clamping part 11 and the second clamping part 12 are inclined to each other, the first clamping part 11 and the second clamping part 12 can respectively clamp and hold onto both ends of the bent part 21 of the archwire 20, completing the installation of the traction hook. The first clamping part 11 and the second clamping part 12, which have a certain bending angle, can match and adapt to the angle of the bent part 21 on the personalized lingual archwire 20. Of course, the angle of different bent parts 21 on different archwires 20 (or the same archwire 20) is different, but the difference in angle will not be too large. Figure 5 The traction hook is usually made of metal, commonly stainless steel or titanium alloy. It has a certain degree of material plasticity. In clinical use, if the bending angle between the first clamping part 11 and the second clamping part 12 differs significantly from the bending angle of the archwire 20, the doctor can gently press inward or pry the first clamping part 11 and the second clamping part 12 outward to slightly change the angle between the two clamping parts, so that it can match different bending angles of the archwire 20. Since the range of this angle difference is not too large, this is achievable in clinical practice.

[0031] Compared to traditional traction hooks with straight connectors that are difficult to secure to lingual archwires 20 with multiple bends, this invention can be used with customized lingual archwires 20 with various bend angles. Furthermore, it can be mass-produced in a standardized manner, allowing for direct use when patients require traction devices during orthodontic treatment, eliminating the need for custom orders. This significantly reduces medical costs for patients and shortens the treatment cycle.

[0032] Preferably, the first clamping part 11, the second clamping part 12 and the hook body 13 are integrally formed.

[0033] Preferably, the free traction hook 10 is made of stainless steel, titanium alloy, or cermet. These materials have a certain degree of plasticity, which allows the physician to make slight adjustments to the angles of the first clamping part 11 and the second clamping part 12; they also have good corrosion resistance, making them suitable for long-term use in the oral environment. Of course, other materials known in the art for manufacturing traction hooks can also be used.

[0034] Preferably, in the first clamping portion 11, a first extension portion 112 extends outward along the outer side of the first clamp neck 111; in the second clamping portion 12, a second extension portion 122 extends outward along the outer side of the second clamp neck 121; the first extension portion 112 and the second extension portion 122 are symmetrically arranged. When the angle between the first clamping portion 11 and the second clamping portion 12 differs significantly from the angle of the archwire 20 bending portion 21, the extension portion allows the physician to apply force by hand, thereby slightly clamping the first clamping portion 11 and the second clamping portion 12 inward or prying them outward, thus achieving angle adjustment between the clamping portions.

[0035] Preferably, the shape of the hook body 13 can be any one of a question mark hook, a spiral hook, or a T-hook. Of course, it can also be other traction hook shapes known in the art.

[0036] Preferably, the cross-sectional shape of the first clamp neck 111 and the second clamp neck 121 is any one of circular, square, elliptical, horseshoe, polygonal, or irregular shapes, corresponding to different cross-sectional shapes of the bowwire 20; usually, square bowwire 20 and circular bowwire 20 are the main types. Of course, the cross-sectional shape of the clamp neck can also be matched with other known shapes of bowwire 20.

[0037] Preferably, in order to enhance the connection stability of the traction hook, several anti-slip grooves are also provided on the inner sidewalls of the first clamp neck 111 and the second clamp neck 121 to improve the friction between the traction hook and the bow wire 20.

[0038] Preferably, this utility model also discloses an orthodontic component, including the aforementioned free traction hook 10; any orthodontic component that uses the same or substantially the same free traction hook 10 should be within the protection scope of this utility model. The orthodontic component also includes an archwire 20, with at least one of the first clamping part 11 and the second clamping part 12 clamped to the outer surface of the archwire 20. More specifically, the archwire 20 also has a bent part 21, which is usually located on the connecting section between two brackets, and the first clamping part 11 and the second clamping part 12 are respectively clamped to the two opposite ends of the bent part 21.

[0039] Preferably, the orthodontic component also includes an elastic element, which may be an elastic ligature such as a rubber band; the end of the elastic element is hung on the hook body 13, and the teeth are pulled by the elastic force.

[0040] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A free-floating traction hook with a bent interface, characterized in that, include: The hook body has a hook portion for attaching an elastic element; The first clamping part is connected to the upper end of the hook body; the first clamping part is provided with a first clamping neck for clamping onto the bowwire; The second clamping part is connected to the upper end of the hook body; the first clamping part is provided with a second clamping neck for clamping onto the bowwire; The first clamping part and the second clamping part are located on both sides of the hook body; the first clamping part and the second clamping part are inclined to each other, and together they form a relatively bent structure.

2. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, The first clamping part and the second clamping part are integrally formed with the hook body.

3. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, The free-floating traction hook with the bent interface is made of any one of stainless steel, titanium alloy, or metal ceramic.

4. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, The first clamping part extends outward along the outer side of the first clamp neck and has a first extension; the second clamping part extends outward along the outer side of the second clamp neck and has a second extension; the first extension and the second extension are arranged symmetrically.

5. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, The shape of the hook body can be any one of a question mark hook, a spiral hook, or a T-hook.

6. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, The cross-sectional shape of the first clamp neck and the second clamp neck is any one of the following: circular, square, elliptical, horseshoe-shaped, polygonal, or irregular.

7. The free-floating traction hook with a bent interface as described in claim 1, characterized in that, Several anti-slip grooves are protruding on the inner sidewalls of the first clamp neck and the second clamp neck.

8. An orthodontic component, characterized in that, The orthodontic component includes the free traction hook with a bent interface as described in any one of claims 1 to 7, and further includes: an archwire; at least one of the first clamping portion and the second clamping portion is clamped to the outside of the archwire.

9. The orthodontic component as claimed in claim 8, characterized in that, The bowwire also has a bend, and the first clamping part and the second clamping part are respectively clamped on the two opposite ends of the bend.

10. The orthodontic component as claimed in claim 8, characterized in that, The orthodontic component further includes: an elastic element; the end of the elastic element is attached to the hook portion of the hook body.

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