Annular self-ligating bracket structure and appliance

Abstract

The annular self-ligating bracket structure comprises a bottom plate, a body part, an elastic locking component, a first arch wire and a second arch wire, the bottom plate is fixed on a tooth surface and is respectively provided with a first fixing part and a second fixing part, the elastic locking component is arranged at the first fixing part, the elastic locking component is arranged at the second fixing part, and the elastic locking component is arranged at the second fixing part. A first locking cover through groove is formed between the elastic locking assembly and the second fixing part, the body part comprises a fixing section and a connecting section which are integrally formed, the fixing section is located in the first locking cover through groove and abuts against and is locked with the elastic locking assembly, the first arch wire penetrates through the fixing section, the second arch wire penetrates through the connecting section, and the first arch wire is parallel to the second arch wire. According to the utility model, the operation of adjusting the arch wire and the bracket or applying force is simplified, and the comfort is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a ring-shaped self-locking bracket structure and an orthodontic appliance. Background Art

[0002] At present, the commonly used devices for correcting deformed dentition are fixed appliances and removable appliances. Among them, fixed appliances usually consist of two parts: brackets and correction archwires. During correction, the brackets are fixed on the tooth surface, and the deformed teeth are moved by the force between the grooves and the correction archwires to achieve the purpose of correction. However, fixed correction technology also has certain defects. After the doctor bonds the brackets on the tooth surface, the patient usually needs to go to the hospital for a follow-up visit once every one to two months. The doctor adjusts the archwire, brackets or applies force according to the diagnosis. A patient with a moderate treatment difficulty needs to go for a follow-up visit about ten times, which takes a long time of medical treatment. In addition, the brackets are usually bonded to the lip side, which greatly affects the appearance. At present, there are also brackets bonded to the tongue side, which improves the appearance, but because the operating space in the mouth is narrow, the doctor's operation is more difficult, the comfort is relatively poor, the cost and fee are relatively high, and the popularity rate is not high. Therefore, it is necessary to improve the existing fixed appliances. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a ring-shaped self-ligating bracket structure and an orthodontic appliance, which simplifies the operation of adjusting the archwire, bracket or applying force and improves comfort.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] In a first aspect of the utility model, the utility model provides a ring-type self-ligating bracket structure, comprising a base plate, a body, an elastic locking assembly, a first arch wire and a second arch wire, the base plate being fixed on the tooth surface, the first fixing portion and the second fixing portion being respectively arranged at two ends of the top surface of the base plate, the first fixing portion being arranged with a fixing groove on a side facing the second fixing portion, the elastic locking assembly being arranged in the fixing groove, a first locking cover through groove being formed between the elastic locking assembly and the second fixing portion, the body comprising an integrally formed fixing section and a connecting section, the fixing section being in the first locking cover through groove and being abutted and locked with the elastic locking assembly, the first arch wire passing through the fixing section, the second arch wire passing through the connecting section, the first arch wire and the second arch wire being parallel;

[0006] Wherein, the first arch wire is fixedly connected to the fixed segment, and the second arch wire is slidably connected to the connecting segment, or the first arch wire is slidably connected to the fixed segment, and the second arch wire is fixedly connected to the connecting segment.

[0007] Preferably, the elastic locking assembly includes an elastic lock core and a fixed pin, the elastic lock core is arranged in a fixed groove, the fixed groove is provided with a pin hole, the fixed pin passes through the pin hole to fix the elastic lock core, and the body abuts against the elastic lock core.

[0008] Preferably, the second fixing portion is provided with a second locking cover through groove, the second locking cover through groove leads to the first locking cover through groove and is perpendicular to the first locking cover through groove, and the connecting section is placed in the second locking cover through groove.

[0009] Preferably, the fixed segment is provided with a fixed through slot, the first arch wire passes through the fixed through slot and comes out from the first locking cover through slot, the first arch wire is fixedly connected to the fixed segment, the portion of the connecting segment outside the second locking cover through slot is provided with a guide through hole, the second arch wire passes through the guide through hole, and the second arch wire is slidably connected to the connecting segment.

[0010] More preferably, the fixed through slot is interference fit with the first arch wire.

[0011] Preferably, the diameter of the first arch wire is smaller than the diameter of the second arch wire.

[0012] Preferably, in the body, the width of the fixing section is greater than the width of the connecting section, a snap-in protrusion is formed at the intersection of the fixing section and the connecting section, two snap-in protrusions are symmetrically distributed on both sides of the connecting section, and a docking groove is provided on one side of the second fixing portion facing the fixing section, and the snap-in protrusion of the fixing section is embedded in the docking groove.

[0013] More preferably, a surface of the fixing section facing the second fixing portion is a clamping end surface, and the end surface of the clamping end of the fixing section is in an inclined state.

[0014] Preferably, one end of the fixing section facing the elastic locking assembly is an abutting end surface, the abutting end surface is provided with an embedding groove, and the elastic locking assembly is partially embedded in the embedding groove.

[0015] More preferably, the abutting end surface is inclined.

[0016] More preferably, the front end of the elastic lock core is a curved surface.

[0017] In a second aspect of the utility model, the utility model provides an orthodontic appliance, comprising a plurality of annular self-ligating bracket structures, a plurality of base plates being fixed on a tooth surface, and a plurality of body portions forming a whole through a first arch wire and a second arch wire.

[0018] Beneficial effects:

[0019] The utility model forms an orthodontic appliance. Under the connection of the first arch wire and the second arch wire, multiple body parts form an arch wire as a whole, and the base plate is fixed on the tooth surface. Since the arch wire as a whole can be designed according to the patient's correction process, the doctor only needs to make the arch wire as a whole in advance and replace the arch wire as a whole when adjusting, which greatly simplifies the operation of adjusting the arch wire, bracket or force. For the situation where the base plate is bonded to the side of the tongue, the utility model effectively reduces the difficulty of operation and improves the comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shown is a schematic diagram of the utility model;

[0021] Figure 2 Shown is a schematic diagram of the utility model from another angle;

[0022] Figure 3 Shown is a schematic diagram of the body and the first arch wire and the second arch wire;

[0023] Figure 4 Shown is a schematic diagram of the base plate and the elastic locking assembly;

[0024] Figure 5 Shown is a schematic diagram of the bottom plate and the elastic locking assembly from another angle;

[0025] Figure 6 Shown is a cross-sectional schematic diagram of the present utility model.

[0026] Reference numerals: 1-base plate, 2-body, 3-elastic locking assembly, 4-first arch wire, 5-second arch wire;

[0027] 11-first fixing part, 12-second fixing part, 13-jointing groove, 14-first locking cover through groove, 15-second locking cover through groove;

[0028] 21-fixing section, 22-connecting section, 23-fixing through groove, 24-guide through hole, 25-clamping protrusion, 26-fitting groove;

[0029] 31-elastic lock core, 32-fixing pin shaft. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] The technical solution of the utility model is described in detail below with specific embodiments.

[0032] The utility model provides a ring-type self-locking bracket structure, comprising a base plate 1, a body 2, an elastic locking assembly 3, a first arch wire 4 and a second arch wire 5, such as Figure 1-6 As shown, the base plate 1 is fixed on the tooth surface, and the first fixing part 11 and the second fixing part 12 are respectively arranged at the two ends of the top surface of the base plate 1. A fixing groove is arranged on a side of the first fixing part 11 facing the second fixing part 12, and the elastic locking component 3 is arranged in the fixing groove. A first locking cover through groove 14 is formed between the elastic locking component 3 and the second fixing part 12. The body 2 includes an integrally formed fixing section 21 and a connecting section 22. The fixing section 21 is in the first locking cover through groove 14 and abuts against and locks with the elastic locking component 3. The first arch wire 4 passes through the fixing section 21, and the second arch wire 5 passes through the connecting section 22. The first arch wire 4 and the second arch wire 5 are parallel.

[0033] Among them, the first arch wire 4 is fixedly connected to the fixed segment 21, and the second arch wire 5 is slidably connected to the connecting segment 22, or the first arch wire 4 is slidably connected to the fixed segment 21, and the second arch wire 5 is fixedly connected to the connecting segment 22.

[0034] In the present invention, the fixing section 21 of the body 2 plays the role of fixing the body 2 to the bottom 1, and the connecting section 22 of the body 2 plays the role of providing a force point to install the body 2 into or remove it from the bottom plate 1, and the connecting section 22 is connected to the second arch wire 5. Further, in order to prevent the connecting section 22 from protruding too much from the bottom plate 1, the second fixing portion 12 is provided with a second lock cover slot 15, the second lock cover slot 15 leads to the first lock cover slot 14, and is perpendicular to the first lock cover slot 14, and the connecting section 22 is placed in the second lock cover slot 15.

[0035] Preferably, in the utility model, the fixed segment 21 is provided with a fixed through slot 23, the first arch wire 4 passes through the fixed through slot 23 and passes through the first lock cover through slot 14, the first arch wire 4 is fixedly connected to the fixed segment 21, and the portion of the connecting segment 22 outside the second lock cover through slot 15 is provided with a guide through hole 24, the second arch wire 5 passes through the guide through hole 24, and the second arch wire 5 is slidably connected to the connecting segment 22.

[0036] Specifically, the first arch wire 4 and the fixed segment 21 are installed by pressing the first arch wire 4 into the fixed through slot 23 along the length direction of the fixed through slot 23, the first arch wire 4 and the fixed through slot 23 are interference fit, and then the first arch wire 4 and the fixed through slot 23 are glued or welded to be fixedly connected.

[0037] In the utility model, the body 2 is locked on the base plate 1 by the elastic locking assembly 3. Specifically, when installing the body 2, the fixed section 21 of the body 2 is firstly moved diagonally downward to contact the elastic locking assembly 3, and then the fixed section 21 is pushed to compress the elastic locking assembly 3, so that the fixed section 21 enters the first locking cover slot 14, and at this time, the connecting section 22 also enters the second locking cover slot 15, and then the elastic locking assembly 3 is restored, and the fixed section 21 is pushed toward the second fixing portion 12, and the fixed section 21 is locked in the first locking cover slot 14; when taking out the body 2, the fixed section 21 is pushed to compress the elastic locking assembly 3, so that the fixed section 21 is disengaged from the first locking cover slot 14, thereby taking out the body 2.

[0038] In the present invention, the first arch wire 4 is in a fixed and locked state to increase the traction force for tooth movement, and the second arch wire 5 is not locked, and acts as a slide rail. Preferably, the second arch wire 5 is thicker than the first arch wire 4, and the second arch wire 5 provides a supporting force. If the supporting force is insufficient, the teeth will tilt to one side, resulting in insufficient control over the torque, axial tilt, and torsion of the teeth.

[0039] It is easy to understand that multiple annular self-ligating bracket structures of the utility model can form an orthodontic appliance, wherein, under the connection action of the first arch wire 4 and the second arch wire 5, multiple body parts 2 form an arch wire as a whole, and the base plate 1 is fixed on the tooth surface. Since the arch wire as a whole can be designed according to the patient's correction process, the doctor only needs to make the arch wire as a whole in advance and replace the arch wire as a whole when adjusting, which greatly simplifies the operation of adjusting the arch wire, bracket or force. For the situation where the base plate 1 is bonded to the side of the tongue, the utility model effectively reduces the difficulty of operation and improves comfort.

[0040] like Figure 3 As shown in the perspective, in the body 2, the width of the fixed section 21 is greater than the width of the connecting section 22, and a snap-fit ​​protrusion 25 is formed at the intersection of the fixed section 21 and the connecting section 22. The two snap-fit ​​protrusions 25 are symmetrically distributed on both sides of the connecting section 22. A docking groove 13 is provided on one side of the second fixing portion 12 facing the fixed section 21, and the snap-fit ​​protrusion 25 of the fixed section 21 is embedded in the docking groove 13 to prevent the body 2 from falling out of the first locking cover slot 14.

[0041] Specifically, the snap-fit ​​protrusion 25 is part of the fixing section 21 . Since the width of the fixing section 21 is greater than that of the connecting section 22 , the side surface of the fixing section 21 protrudes more than the side surface of the connecting section 22 along its width direction, and the protruding portion forms the snap-fit ​​protrusion 25 .

[0042] It should be noted that, in the present invention, the width directions of the fixing section 21 and the connecting section 22 are parallel to the first arch wire 4 and the second arch wire 5 .

[0043] Furthermore, the side of the fixing section 21 facing the second fixing portion 12 is a snap-fit ​​end face. To facilitate the installation of the body 2 into the base plate 1, the end face of the snap-fit ​​end of the fixing section 21 is inclined. During assembly, the body 2 slides downward along the snap-fit ​​end face.

[0044] The end of the fixed section 21 facing the elastic locking assembly 3 is an abutting end surface, and the abutting end surface is provided with an engaging groove 26, and the elastic locking assembly 3 is partially embedded in the engaging groove 26, so that the body 2 is positioned on the bottom. In order to facilitate the installation of the body 2 into the bottom plate 1, the abutting end surface is in an inclined state, that is, the fixed section 21 is in an inverted quadrangular pyramid shape as a whole. During assembly, the contact surface between the fixed section 21 and the elastic locking assembly 3 is an inclined surface, and the contact surface between the fixed section 21 and the second fixing part 12 is an inclined surface, which makes it easier for the body 2 to enter the first locking cover through groove 14 and be fixed.

[0045] In the present invention, the structure of the elastic locking assembly 3 can be various, as long as it can achieve the function of supporting the body 2. The present invention proposes a feasible structure of the elastic locking assembly 3, as follows:

[0046] The elastic locking assembly 3 includes an elastic lock core 31 and a fixed pin 32. The elastic lock core 31 is made of an elastic material such as nickel titanium. The elastic lock core 31 is arranged in a fixed groove. The fixed groove is provided with a pin hole. The fixed pin 32 passes through the pin hole to fix the elastic lock core 31. The body 2 abuts against the elastic lock core 31. The elastic lock core 31 has a certain compression space in the fixed groove. In a relaxed state, the front end of the elastic lock core 31 protrudes from the installation groove. When the body 2 is installed, the fixed section 21 contacts the elastic lock core 31 to compress the elastic lock core 31. When the body 2 is fully installed, the elastic lock core 31 pushes the fixed section 21 to abut against the second fixed portion 12 to fix the body 2 on the bottom.

[0047] Furthermore, the front end of the elastic lock core 31 is an arc surface, which is convenient for connection with the fitting groove 26 of the fixing section 21 to achieve positioning.

[0048] The embodiments provided by the utility model are described in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A ring-shaped self-locking bracket structure, characterized in that: The invention comprises a base plate (1), a body (2), an elastic locking assembly (3), a first arch wire (4) and a second arch wire (5), wherein the base plate (1) is fixed on the tooth surface, and a first fixing portion (11) and a second fixing portion (12) are respectively arranged at two ends of the top surface of the base plate (1), a fixing groove is arranged on a side of the first fixing portion (11) facing the second fixing portion (12), the elastic locking assembly (3) is arranged in the fixing groove, and a first locking cover slot (14) is formed between the elastic locking assembly (3) and the second fixing portion (12), the body (2) comprises an integrally formed fixing section (21) and a connecting section (22), the fixing section (21) is located in the first locking cover slot (14) and is abutted and locked with the elastic locking assembly (3), the first arch wire (4) passes through the fixing section (21), the second arch wire (5) passes through the connecting section (22), and the first arch wire (4) and the second arch wire (5) are parallel; Wherein, the first arch wire (4) is fixedly connected to the fixed section (21), and the second arch wire (5) is slidably connected to the connecting section (22), or the first arch wire (4) is slidably connected to the fixed section (21), and the second arch wire (5) is fixedly connected to the connecting section (22); The elastic locking assembly (3) comprises an elastic lock core (31) and a fixed pin shaft (32); the elastic lock core (31) is arranged in a fixed groove; the fixed groove is provided with a pin shaft hole; the fixed pin shaft (32) passes through the pin shaft hole to fix the elastic lock core (31); and the body (2) abuts against the elastic lock core (31).

2. The ring-shaped self-ligating bracket structure according to claim 1, characterized in that: The second fixing portion (12) is provided with a second locking cover through groove (15), the second locking cover through groove (15) leads to the first locking cover through groove (14) and is perpendicular to the first locking cover through groove (14), and the connecting section (22) is disposed in the second locking cover through groove (15).

3. The ring-shaped self-ligating bracket structure according to claim 1, characterized in that: The fixed section (21) is provided with a fixed through slot (23), the first arch wire (4) passes through the fixed through slot (23) and passes out from the first lock cover through slot (14), the first arch wire (4) is fixedly connected to the fixed section (21), the portion of the connecting section (22) outside the second lock cover through slot (15) is provided with a guide through hole (24), the second arch wire (5) passes through the guide through hole (24), and the second arch wire (5) is slidably connected to the connecting section (22).

4. The ring-shaped self-ligating bracket structure according to any one of claims 1 to 3, characterized in that: In the body (2), the width of the fixing section (21) is greater than the width of the connecting section (22); a snap-fitting protrusion (25) is formed at the intersection of the fixing section (21) and the connecting section (22); two snap-fitting protrusions (25) are symmetrically distributed on both sides of the connecting section (22); a docking groove (13) is provided on one side of the second fixing portion (12) facing the fixing section (21); and the snap-fitting protrusion (25) of the fixing section (21) is embedded in the docking groove (13).

5. The ring-shaped self-ligating bracket structure according to claim 4, characterized in that: A surface of the fixing section (21) facing the second fixing portion (12) is a clamping end surface, and the end surface of the clamping end of the fixing section (21) is in an inclined state.

6. The ring-shaped self-ligating bracket structure according to claim 1, characterized in that: One end of the fixing section (21) facing the elastic locking assembly (3) is an abutting end surface, and the abutting end surface is provided with an embedding groove (26), and the elastic locking assembly (3) is partially embedded in the embedding groove (26).

7. The ring-shaped self-ligating bracket structure according to claim 6, characterized in that: The abutting end surface is in an inclined state.

8. The ring-shaped self-ligating bracket structure according to claim 1, characterized in that: The diameter of the first arch wire (4) is smaller than the diameter of the second arch wire (5).

9. The ring-shaped self-ligating bracket structure according to claim 8, characterized in that: The front end of the elastic lock core (31) is a curved surface.

10. A corrective appliance, characterized in that: It comprises a plurality of annular self-ligating bracket structures as described in any one of claims 1-3 and 5-9, a plurality of base plates (1) are fixed on the tooth surface, and a plurality of body parts (2) are formed into a whole through a first arch wire (4) and a second arch wire (5).

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