Invisible orthodontic j-hook device

Abstract

The utility model discloses a kind of invisible correction J hook devices, including wearing piece, first J hook, second J hook, maxillary invisible mouthguard, mandibular invisible mouthguard and rigid top rod, the both ends of wearing piece are equipped with elastic part, the one end of first J hook and the one end of second J hook are connected with the elastic part of same side, the other end of first J hook is detachably connected with maxillary invisible mouthguard, the other end of second J hook is detachably connected with mandibular invisible mouthguard, the both ends of rigid top rod are fixed in maxillary invisible mouthguard and mandibular invisible mouthguard respectively. By first J hook and second J hook, exerting pulling force to upper invisible mouthguard and mandibular invisible mouthguard synchronously, the control to teeth retraction and depression is realized;Rigid top rod is arranged between maxillary invisible mouthguard and mandibular invisible mouthguard, forms rigid connection, can offset vertical component force generated when second J hook acts on mandibular invisible mouthguard, prevent mandibular invisible mouthguard from warping or dislocation.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and in particular to an invisible J-hook device. Background Technology

[0002] In the field of orthodontics, J-hooks are typically used in conjunction with fixed braces to control tooth retraction and intrusion through traction. Traditional metal braces have a tight connection to the teeth, providing a stable hook position for the J-hooks. However, traditional metal braces have been gradually replaced by clear aligners due to their poor aesthetics, difficulty in maintaining oral hygiene, and low patient comfort. Clear aligners, with their advantages of transparency, removability, and comfort, have improved patient acceptance and treatment experience. However, when using J-hooks with clear aligners, their application is usually limited to the maxillary aligners. This is because the J-hooks are typically worn on the head, and when they apply tension to the mandibular clear aligners, the J-hooks generate a vertical force on the mandibular clear aligners. This force can cause vertical displacement or even lifting of the aligners, making it impossible to ensure a proper fit between the mandibular clear aligners and teeth, reducing the accuracy of the orthodontic force, and potentially causing the mandibular clear aligners to loosen, thus affecting the orthodontic outcome. Utility Model Content

[0003] The purpose of this invention is to provide an invisible orthodontic J-hook device to solve one or more technical problems existing in the background art.

[0004] To achieve this objective, the present invention adopts the following technical solution: A J-hook device for invisible orthodontic treatment includes a wearable component, a first J-hook, a second J-hook, an upper invisible aligner, a lower invisible aligner, and a rigid top rod. The wearable component has elastic portions at both ends. One end of the first J-hook and one end of the second J-hook are both connected to the elastic portion on the same side. The other end of the first J-hook is detachably connected to the upper invisible aligner, and the other end of the second J-hook is detachably connected to the lower invisible aligner. The two ends of the rigid top rod are respectively fixed to the upper invisible aligner and the lower invisible aligner.

[0005] Preferably, the outer side of the upper invisible brace is provided with a first fixing screw, the outer side of the lower invisible brace is provided with a second fixing screw, and the two ends of the rigid top rod are provided with connecting rings. The two ends of the rigid top rod are respectively fixed to the upper invisible brace and the lower invisible brace by the first fixing screw and the second fixing screw.

[0006] Preferably, the wearable device includes a headband and two sets of elastic components. The two sets of elastic components are respectively disposed at both ends of the headband to form the elastic portion. Each elastic component includes a fixing strip, a positioning post, and an elastic element. One end of the fixing strip is connected to the headband, the positioning post is disposed on the fixing strip, one end of the elastic element is connected to the positioning post, and the other end of the elastic element is connected to the first J hook and the second J hook.

[0007] Preferably, the elastic component further includes a limiting strip, which is fixed to the other end of the fixing strip. A limiting hole is provided on the limiting strip, and the first J hook and the second J hook pass through the limiting strip and the fixing strip and then pass out through the limiting hole.

[0008] Preferably, the elastic element is a rubber band or a spring.

[0009] Preferably, the upper invisible brace has a first mating groove at the canine corresponding to the canine, and the lower invisible brace has a second mating groove at the canine corresponding to the canine, with the hook portion of the first J-hook and the hook portion of the second J-hook respectively mating with the first mating groove and the second mating groove.

[0010] Preferably, the angle between the first J-hook and the upper invisible brace is 60-75°, and the angle between the second J-hook and the lower invisible brace is 60-75°.

[0011] Preferably, the rigid push rod is made of stainless steel.

[0012] The beneficial effects of this utility model are as follows: By setting the first J-hook and the second J-hook to be detachably connected to the upper and lower mandibular invisible braces respectively, the elastic parts at both ends of the wearer undergo elastic deformation after the patient wears the wearer. This allows the first J-hook and the second J-hook to simultaneously apply tension to the upper and lower mandibular invisible braces, thereby controlling the inward retraction and intrusion of the teeth. At the same time, the rigid top rod set between the upper and lower mandibular invisible braces forms a rigid connection, which can counteract the vertical component force generated when the second J-hook acts on the lower mandibular invisible braces, preventing the lower mandibular braces from lifting or dislodging. This ensures the transmission of orthodontic force and achieves stable cooperation between the J-hook device and the lower mandibular invisible braces, solving the problem that existing J-hook devices cannot be used with lower mandibular invisible braces. Attached Figure Description

[0013] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0014] Figure 1 This is a schematic diagram of the wearing of one embodiment of the present invention; Figure 2 yes Figure 1A magnified view of a portion of the image; Figure 3 This is a schematic diagram of the structure of a wearable component according to one embodiment of the present invention.

[0015] Among them: wearable component 1, first J hook 2, second J hook 3, upper jaw invisible brace 4, lower jaw invisible brace 5, rigid top rod 6, first fixing screw 41, second fixing screw 51, connecting ring 61, headband 11, fixing strip 12, positioning post 13, elastic element 14, limiting cloth strip 15, limiting hole 151, first mating groove 42, second mating groove 52. Detailed Implementation

[0016] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] This embodiment of an invisible orthodontic J-hook device includes a wearable component 1, a first J-hook 2, a second J-hook 3, an upper invisible brace 4, a lower invisible brace 5, and a rigid top rod 6. The wearable component 1 has elastic parts at both ends. One end of the first J-hook 2 and one end of the second J-hook 3 are both connected to the elastic part on the same side. The other end of the first J-hook 2 is detachably connected to the upper invisible brace 4, and the other end of the second J-hook 3 is detachably connected to the lower invisible brace 5. The two ends of the rigid top rod 6 are respectively fixed to the upper invisible brace 4 and the lower invisible brace 5.

[0018] By setting the first J-hook 2 and the second J-hook 3 to be detachably connected to the upper clear aligner 4 and the lower clear aligner 5 respectively, the elastic parts at both ends of the wearer 1 undergo elastic deformation after the patient wears the wearer 1. This allows the first J-hook 2 and the second J-hook 3 to simultaneously apply tension to the upper clear aligner and the lower clear aligner 5, thereby controlling the retraction and intrusion of the teeth. At the same time, the rigid top rod 6 set between the upper clear aligner 4 and the lower clear aligner 5 forms a rigid connection, which can counteract the vertical component force generated when the second J-hook 3 acts on the lower clear aligner 5, preventing the lower clear aligner from lifting or dislodging. This ensures the transmission of orthodontic force and achieves stable cooperation between the J-hook device and the lower clear aligner 5, solving the problem that existing J-hook devices cannot be used with the lower clear aligner 5.

[0019] Preferably, the outer side of the upper invisible brace 4 is provided with a first fixing screw 41, the outer side of the lower invisible brace 5 is provided with a second fixing screw 51, and the two ends of the rigid push rod 6 are provided with connecting rings 61. The two ends of the rigid push rod 6 are fixed between the upper invisible brace 4 and the lower invisible brace 5 through the cooperation of the connecting rings 61 with the first fixing screw 41 and the second fixing screw 51.

[0020] By designing attachments or pre-drilling holes in the maxillary and mandibular clear aligners 4 and 5 respectively, the first fixing screw 41 and the second fixing screw 51 are directly fixed to the maxillary clear aligners 4 and 5, ensuring the stability of the rigid push rod 6. Connecting rings 61 are provided at both ends of the rigid push rod 6. The rigid push rod 6 is fixed by the cooperation of the connecting rings 61 with the first fixing screw 41 and the second fixing screw 51, allowing the rigid push rod 6 to self-adjust within a certain angle range. During use, the installation angle of the rigid push rod 6 can be finely adjusted to ensure it is always in the optimal force-bearing position, ensuring that the force is transmitted along the axial direction of the push rod. The cooperation of the connecting rings 61 and the fixing screws also makes the rigid push rod 6 a detachable module. During use, rigid push rods of different lengths can be disassembled or replaced according to the actual treatment situation, increasing the flexibility of treatment.

[0021] Preferably, the wearable component 1 includes a headband 11 and two sets of elastic components. The two sets of elastic components are respectively disposed at both ends of the headband 11 to form elastic parts. The elastic components include a fixing strip 12, a positioning post 13 and an elastic element 14. One end of the fixing strip 12 is connected to the headband 11, the positioning post 13 is disposed on the fixing strip 12, one end of the elastic element 14 is connected to the positioning post 13, and the other end of the elastic element 14 is connected to the first J hook 2 and the second J hook 3.

[0022] The headband 11 facilitates patient wearing and secures the J-hook device to the patient's head, thereby generating an upward pulling force on the upper and lower invisible braces 4 and 5. A fixing strip 12, made of rigid plastic and connected to the headband 11, provides a stable and reliable mounting base for the elastic element 14 and positioning post 13, preventing fluctuations in the pulling force on the upper and lower invisible braces 4 and 5 due to deformation, ensuring the continuous effectiveness of the J-hook device. The positioning post 13 on the fixing strip 12 provides a fixing point for the elastic element 14, causing the elastic element 14 to elastically deform towards the end away from the positioning post 13, thus generating a pulling force on the first J-hook 2 and the second J-hook 3. The side of the fixing strip 12 closest to the patient's skin can also be covered with a skin-friendly fabric to improve wearing comfort.

[0023] Preferably, the elastic component further includes a limiting strip 15, which is fixed to the other end of the fixing strip 12. A limiting hole 151 is provided on the limiting strip 15. The first J hook 2 and the second J hook 3 pass through the space between the limiting strip 15 and the fixing strip 12 and then pass out through the limiting hole 151.

[0024] By setting a limiting strip 15 at one end of the fixing strip 12 near the braces, the first J hook 2 and the second J hook 3 are used to limit and constrain them, preventing the first J hook 2 and the second J hook 3 from easily changing angles, which would cause fluctuations in the tension on the upper invisible braces 4 and the lower invisible braces 5.

[0025] Preferably, the elastic element 14 is an elastic band or a spring. Using an elastic band as the elastic element 14 allows for replacement depending on the elasticity, ensuring the effectiveness of the pulling force. Using a spring as the elastic element 14 provides stable pulling force, ensuring the stability of the force output throughout the wearing period.

[0026] Preferably, the upper invisible brace 4 has a first mating groove 42 at the canine corresponding to the canine, and the lower invisible brace 5 has a second mating groove 52 at the canine corresponding to the canine. The hook part of the first J hook 2 and the hook part of the second J hook 3 respectively mate with the first mating groove 42 and the second mating groove 52.

[0027] Since the smooth surface of the invisible aligners cannot provide a reliable gripping point for the J-hooks, this embodiment provides a first mating groove 42 and a second mating groove 52 on the outer side of the upper invisible aligner 4 and the lower invisible aligner 5, providing a mating structure for the first J-hook 2 and the second J-hook 3, so that they can be locked in. This avoids the problem of the J-hooks slipping off the surface of the invisible aligners during traction, ensuring that the orthodontic force can be continuously and stably transmitted to the invisible aligners through the J-hooks, thus guaranteeing the effectiveness of the treatment.

[0028] Preferably, the angle between the first J-hook 2 and the upper invisible aligner 4 is 60-75°, and the angle between the second J-hook 3 and the lower invisible aligner 5 is 60-75°. By setting the angle between the J-hook and the invisible aligner to 60-75°, the orthodontic effect is ensured. At the same time, it avoids violent shaking of the aligners or local pressure caused by improper force direction, further improving the wearing experience.

[0029] Preferably, the rigid push rod 6 is made of stainless steel. Stainless steel has high strength, rigidity, and hardness, preventing bending, stretching, or deformation that could affect the orthodontic effect over long-term use. Moreover, medical-grade stainless steel is a biocompatible material widely used in orthodontics and surgical implants, meeting the stringent safety requirements for dental medical devices.

[0030] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A J-hook device for invisible orthodontic treatment, characterized in that, The device includes a wearable component, a first J-hook, a second J-hook, an upper chin invisible brace, a lower chin invisible brace, and a rigid push rod. The wearable component has elastic portions at both ends. One end of the first J-hook and one end of the second J-hook are both connected to the elastic portion on the same side. The other end of the first J-hook is detachably connected to the upper chin invisible brace, and the other end of the second J-hook is detachably connected to the lower chin invisible brace. The two ends of the rigid push rod are respectively fixed to the upper chin invisible brace and the lower chin invisible brace.

2. The invisible orthodontic J-hook device according to claim 1, characterized in that, The outer side of the upper chin invisible brace is provided with a first fixing screw, and the outer side of the lower chin invisible brace is provided with a second fixing screw. The two ends of the rigid top rod are provided with connecting rings. The two ends of the rigid top rod are fixed to the upper chin invisible brace and the lower chin invisible brace respectively by the first fixing screw and the second fixing screw.

3. The invisible orthodontic J-hook device according to claim 1, characterized in that, The wearable device includes a headband and two sets of elastic components. The two sets of elastic components are respectively disposed at both ends of the headband to form the elastic part. Each elastic component includes a fixing strip, a positioning post, and an elastic element. One end of the fixing strip is connected to the headband, the positioning post is disposed on the fixing strip, one end of the elastic element is connected to the positioning post, and the other end of the elastic element is connected to the first J hook and the second J hook.

4. The invisible orthodontic J-hook device according to claim 3, characterized in that, The elastic component also includes a limiting strip, which is fixed to the other end of the fixing strip. A limiting hole is provided on the limiting strip, and the first J hook and the second J hook pass through the limiting strip and the fixing strip and then pass out through the limiting hole.

5. The invisible orthodontic J-hook device according to claim 3, characterized in that, The elastic element is a rubber band or a spring.

6. The invisible orthodontic J-hook device according to claim 1, characterized in that, The upper invisible brace has a first mating groove at the canine corresponding to the canine, and the lower invisible brace has a second mating groove at the canine corresponding to the canine. The hook portion of the first J hook and the hook portion of the second J hook respectively mate with the first mating groove and the second mating groove.

7. The invisible orthodontic J-hook device according to claim 1, characterized in that, The angle between the first J-hook and the upper invisible brace is 60-75°, and the angle between the second J-hook and the lower invisible brace is 60-75°.

8. The invisible orthodontic J-hook device according to claim 1, characterized in that, The rigid top rod is made of stainless steel.

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