Double-wire self-ligating bracket structure and appliance

Abstract

The utility model discloses a double-wire self-ligating bracket structure and appliance, the double-wire self-ligating bracket comprises a bottom plate, a body part, an elastic locking component, a first arch wire and a second arch wire, the top surface of the bottom plate is provided with a first fixing part and a second fixing part, the elastic locking component is arranged on the side surface of the first fixing part facing the second fixing part, and the elastic locking component is arranged on the side surface of the second fixing part. A locking space is formed between the elastic locking assembly and the second fixing part, one end of the body part is fixed in the locking space in an abutting mode through the elastic locking assembly, the other end of the body part is located outside the second fixing part, the first arch wire penetrates through one end of the body part and extends out of the locking space, and the second arch wire penetrates through the other end of the body part and extends out of the locking space. The second arch wire is located outside the second fixing part, the first arch wire is parallel to the second arch wire, the first arch wire is fixedly connected with the body part, and the second arch wire is slidably connected with the body part. 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 double-wire self-locking bracket structure and an orthodontic appliance. Background Art

[0002] At present, the commonly used devices for correcting malocclusion are fixed appliances and removable appliances. Fixed appliances usually consist of brackets and archwires. During correction, brackets are fixed on the tooth surface, and the deformed teeth are moved through the force between the grooves and the archwires to achieve the purpose of correction. However, this fixed correction method still has certain defects. After the doctor bonds the brackets to the tooth surface, the patient usually needs to go to the hospital for a follow-up visit every one to two months. The doctor adjusts the archwire, brackets or applies force according to the diagnosis. A patient with a moderately difficult case needs to go for a follow-up visit about a dozen times, which takes up a long time of medical treatment.

[0003] In addition, brackets are usually bonded to the side of the lips, which is convenient for doctors to adjust the archwire, but it greatly affects the appearance, and multiple fine-tuning may be required during the adjustment process, which is a very bad experience for patients; brackets can also be bonded to the side of the tongue, which improves the appearance, but the operating space in the mouth is narrow, which makes it more difficult for doctors to operate, and the patient experience is worse, the comfort is poor, and the cost and fee are relatively high. Therefore, it is necessary to propose a new type of bracket structure. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a double-wire self-ligating bracket structure and an orthodontic appliance, which simplifies the operation of adjusting the archwire, bracket or applying force and improves comfort.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] In the first aspect of the utility model, the utility model proposes a double-wire self-ligating bracket structure, including a base plate, a body, an elastic locking assembly, a first arch wire and a second arch wire, the top surface of the base plate is provided with a first fixing portion and a second fixing portion, the elastic locking assembly is arranged on the side of the first fixing portion facing the second fixing portion, a locking space is formed between the elastic locking assembly and the second fixing portion, the elastic locking assembly holds and fixes one end of the body in the locking space, the other end of the body is outside the second fixing portion, the first arch wire runs through one end of the body and extends from the locking space, the second arch wire runs through the other end of the body, the second arch wire is outside the second fixing portion, the first arch wire is parallel to the second arch wire, wherein the first arch wire is fixedly connected to the body, the second arch wire is slidably connected to the body, or the first arch wire is slidably connected to the body, and the second arch wire is fixedly connected to the body. Preferably, the first arch wire is fixedly connected to the body, and the second arch wire is slidably connected to the body.

[0007] Preferably, the body includes an integrally formed fixing section and a connecting section, the fixing section is in the locking space, the second fixing section is provided with a fixing through slot, the connecting section passes through the fixing through slot, a first clamping protrusion is formed at the intersection of the fixing section and the connecting section, two first clamping protrusions are symmetrically distributed on both sides of the connecting section, the first clamping protrusion abuts against the second fixing section, the first arch wire passes through the fixing section, and the second arch wire passes through the outer end of the connecting section.

[0008] More preferably, a fixing groove adapted to the first clamping protrusion is provided on a surface of the second fixing portion facing the fixing section.

[0009] More preferably, a surface of the first clamping protrusion of the fixing section facing the second fixing portion is an inclined surface.

[0010] Preferably, the first fixing portion comprises an upper limit member and a lower support member formed in one piece, the upper and lower ends of the lower support member are respectively connected to the upper limit member and the bottom plate, a first avoidance position is formed between the bottom surfaces of the left and right ends of the upper limit member and the bottom plate, and the two first avoidance positions are located on both sides of the lower support member;

[0011] The elastic locking assembly includes a lock core component and an elastic pin shaft, and the lock core component includes an integrally formed lock core substrate and a connecting part. The bottom surfaces on both sides of the lock core substrate are respectively connected to the connecting parts, and the inner side surface of the connecting part is provided with a guide groove that cooperates with the left and right ends of the upper limit positioning part. The elastic pin shaft passes through the connecting parts on both sides and is located below the guide groove. The lock core component is slidably connected to the upper limit positioning part along the guide groove, and the part of the connecting part below the guide groove is in the first avoidance position on the same side, and the elastic pin shaft is outside the lower support part.

[0012] More preferably, the side surface of the lower support member in the first avoidance position is inclined from the inside to the outside to form an inclined side surface, and the two inclined side surfaces intersect to form a limiting edge, and the limiting edge is close to the elastic locking component.

[0013] More preferably, a second avoidance position is provided on a side of the fixed section facing the lock core, a second clamping protrusion is formed on the portion of the fixed section below the second avoidance position, and the lock core substrate is embedded in the second avoidance position to prevent it from escaping from the locking space.

[0014] More preferably, the side surface of the second locking protrusion facing the first fixing portion is an inclined surface.

[0015] Preferably, the diameter of the first arch wire is smaller than the diameter of the second arch wire.

[0016] In a second aspect of the utility model, the utility model provides an orthodontic appliance, comprising a plurality of double-wire self-ligating bracket structures, for use in tooth correction.

[0017] Beneficial effects:

[0018] In the utility model, 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 comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is an overall schematic diagram of the utility model;

[0020] Figure 2 Shown is a schematic diagram of the base plate;

[0021] Figure 3 Shown is a schematic diagram of another angle of the base plate;

[0022] Figure 4 Shown is a schematic diagram of the bottom plate in a top-down direction;

[0023] Figure 5 Shown is a schematic diagram of the body;

[0024] Figure 6 Shown is a schematic diagram of an elastic locking assembly;

[0025] Figure 7 Shown is a cross-sectional schematic diagram of the elastic locking assembly;

[0026] Figure 8 Shown is a cross-sectional schematic diagram of the utility model.

[0027] Reference numerals: 1-base plate, 2-body, 3-elastic locking assembly, 4-first arch wire, 5-second arch wire;

[0028] 11-first fixing part, 111-lower supporting part, 112-upper limit part, 113-first avoidance position, 114-limiting edge, 12-second fixing part, 121-fixing groove, 13-locking space, 14-fixing through groove;

[0029] 21-fixed section, 211-first clamping protrusion, 212-second clamping protrusion, 213-second avoidance position, 22-connecting section;

[0030] 31 - lock core component, 311 - lock core base plate, 312 - connecting portion, 313 - guide groove, 32 - elastic pin shaft. DETAILED DESCRIPTION

[0031] 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.

[0032] The technical solution of the utility model is described in detail below with specific embodiments.

[0033] like Figure 1-8 As shown, the utility model provides a double-wire self-ligating bracket structure, including a base plate 1, a body 2, an elastic locking assembly 3, a first arch wire 4 and a second arch wire 5. The bottom surface of the base plate 1 is bonded to the tooth surface, and the top surface of the base plate 1 is provided with a first fixing portion 11 and a second fixing portion 12, and a receiving space is formed between the first fixing portion 11 and the second fixing portion 12. The elastic locking assembly 3 is arranged on the side of the first fixing portion 11 facing the second fixing portion 12, and a locking space 13 is formed between the elastic locking assembly 3 and the second fixing portion 12. One end of the body 2 is in the locking space 13. Inside, the elastic locking component 3 holds and fixes one end of the body 2 in the locking space 13, and the other end of the body 2 is outside the second fixing part 12, the first arch wire 4 passes through one end of the body 2 and extends out from the locking space 13, the second arch wire 5 passes through the other end of the body 2, and the second arch wire 5 is outside the second fixing part 12, the first arch wire 4 is parallel to the second arch wire 5, wherein the first arch wire 4 is fixedly connected to the body 2, and the second arch wire 5 is slidably connected to the body 2, or the first arch wire 4 is slidably connected to the body 2, and the second arch wire 5 is fixedly connected to the body 2.

[0034] The method of using the double-wire self-locking bracket structure is as follows: the elastic locking component 3 itself has a certain compression space. When subjected to external force, the elastic locking component 3 can be compressed a distance toward the first fixing portion 11, so that the volume of the locking space 13 increases; one end of the body 2 is first placed between the second fixing portion 12 and the elastic locking component 3, and the body 2 is pushed toward the first fixing portion 11 as a whole until one end of the body 2 is completely in the locking space 13, and then the elastic locking component 3 is reset to lock one end of the body 2 in the locking space 13. Similarly, when taking the body 2 out of the base plate 1, first push the body 2 toward the first fixing portion 11 to compress the elastic locking component 3, release the locking state of the body 2, and then pull one end of the body 2 out of the base plate 1.

[0035] It is easy to understand that the body 2 is divided into two parts, one part is in the locking space 13, and the other part is outside the locking space 13. The overall shape of the body 2 is not limited as long as one end of the body 2 is embedded in the locking space 13.

[0036] In the present invention, a plurality of double-wire self-locking bracket structures constitute an appliance, wherein a base plate 1 is fixed on the patient's tooth surface. Generally speaking, the number of teeth is the same as the number of base plates 1. A plurality of body parts 2 are connected in series by a first arch wire 4 and a second arch wire 5 to form an arch wire as a whole. The arch wire as a whole is installed on the base plate 1 outside the upper teeth or the lower teeth. The body 2 is connected and locked with the base plate 1 in a one-to-one correspondence. Preferably, the first arch wire 4 is fixedly connected to the body 2, and the second arch wire 5 is slidably connected to the body 2. The first arch wire 4 is in a fixed locked state, providing traction for tooth movement, and the second arch wire 5 acts as a slide rail to provide support force. If the support force is insufficient, the teeth will tilt to one side, resulting in insufficient control force for the torque, axial tilt, and torsion of the teeth. Preferably, the diameter of the first arch wire 4 is smaller than the diameter of the second arch wire 5. It is easy to understand that the doctor can adjust the length of the first arch wire 4 and the second arch wire 5 and the position of the body 2 on the arch wire in advance according to the treatment plan, and directly install the arch wire as a whole on the base plate 1 on the tooth surface to reduce the difficulty of operation. The wearing and removing operation of the utility model is relatively simple, and the patient can also wear and remove the mask by himself if conditions permit, so as to facilitate oral cleaning.

[0037] The following is a feasible structure of the body 2 proposed by the present invention, which improves the integrity of the double-wire self-locking bracket structure. Furthermore, the body 2 is in an elongated shape as a whole, including an integrally formed fixed section 21 and a connecting section 22, the fixed section 21 is in the locking space 13, the second fixed section 12 is provided with a fixed through groove 14, the connecting section 22 passes through the fixed through groove 14, and the intersection of the fixed section 21 and the connecting section 22 forms a first clamping protrusion 211, the two first clamping protrusions 211 are symmetrically distributed on both sides of the connecting section 22, the first clamping protrusion 211 abuts against the second fixed section 12, and under the action of the elastic locking component 3, the fixed section 21 is locked; the first arch wire 4 passes through the fixed section 21, and the second arch wire 5 passes through the outer end of the connecting section 22, that is, the second arch wire 5 is outside the second fixed section 12.

[0038] In this utility model, "width" is based on the attached Figure 4 In the perspective description, the left-right direction of the locking space 13 is the width. For example, if the fixing section 21 of the body 2 is installed in the locking space 13, the direction from left to right of the fixing section 21 is the width direction of the fixing section 21.

[0039] Attach Figure 4 As shown in the perspective, the locking space 13 is similar to a through-slot structure that passes through from left to right. The first arch wire 4 passes through the fixed segment 21 in the left-right direction and passes out of the locking space 13, while the fixed through-slot 14 is perpendicular to the locking space 13 and is in an up-and-down direction. The fixed segment 21 abuts against the second fixed portion 12 through the first clamping protrusion 211, and the fixed segment 21 is locked in the locking space 13 under the action of the elastic locking component 3. The second fixed portion 12 serves to limit the connecting segment 22 of the body 2. It is easy to understand that the width of the fixed through-slot 14 is equal to or slightly larger than the width of the connecting segment 22. After the body 2 is installed, the fixed segment 21 of the body 2 is locked by the elastic locking component 3, and the connecting segment 22 of the body 2 is limited by the second fixed portion 12, so that the body 2 is locked as a whole with the base plate 1.

[0040] Furthermore, a fixing groove 121 adapted to the first engaging protrusion 211 is provided on one side of the second fixing portion 12 facing the fixing section 21 , so as to prevent the body 2 from escaping from the locking space 13 .

[0041] In the present invention, the structure of the elastic locking component 3 is diverse, as long as the structure can realize the effect of applying force in the direction of the second fixing portion 12, for example, the elastic locking component 3 can be a spring structure, the expansion and contraction direction of the spring structure is toward the second fixing portion 12, when the body 2 is installed, the spring structure is compressed, for example, the elastic locking component 3 can also be an elastic member, the elastic member is installed on the side of the first fixing portion 11 facing the second fixing portion 12, has a certain amount of compression, when the body 2 is installed, the elastic member is compressed, thereby locking the fixing section 21 of the body 2. Further, the present invention also proposes one of the feasible structures of the elastic locking component 3, and the first fixing portion 11 also has a corresponding installation structure, as follows:

[0042] The first fixing portion 11 includes an upper limit member 112 and a lower support member 111 formed in one piece. Figure 2-4 As shown, the upper and lower ends of the lower support member 111 are respectively connected to the upper limit member 112 and the bottom plate 1, and the first avoidance positions 113 are formed between the bottom surfaces of the left and right ends of the upper limit member 112 and the bottom plate 1. The two first avoidance positions 113 are located on both sides of the lower support member 111, and the side surfaces of the lower support member 111 located in the first avoidance positions 113 are inclined from the inside to the outside to form oblique side surfaces. The two oblique side surfaces intersect to form a limiting edge 114, and the limiting edge 114 is close to the elastic locking assembly 3;

[0043] The unclamping piece 312 is a block diagram of a block diagram of a first embodiment of the present invention, wherein the unclamping piece 312 is a block diagram of a first embodiment of the present invention, and the unclamping piece 312 is a block diagram of a first embodiment of the present invention.

[0044] Combined with Figure 1 , 2, 3 and 7, the lock core 31 is slidably connected to the upper limit member 112 of the first fixed part 11. When not limited by the elastic pin 32, the lock core 31 can escape from the upper limit member 112 along the guide groove 313. The elastic pin 32 has two main functions. First, the elastic pin 32 allows the lock core 31 to move a certain distance away from the second fixed part 12, so that the locking space 13 is expanded, and the fixed section 21 of the body 2 can enter the locking space 13, but prevents the lock core 31 from completely escaping from the first fixed part 11 in the direction away from the second fixed part 12. Second, the elastic pin 32 plays a role in abutting and fixing the fixed section 21 of the body 2 with the second fixed part 12.

[0045] It is easy to understand that when installing the body 2, the fixed section 21 of the body 2 is inserted obliquely downward into the locking space 13, and then the body 2 is pushed toward the first fixing portion 11, so that the lock core 31 moves outward a certain distance, and the elastic pin 32 is bent toward the oblique side surfaces on both sides with the limiting edge 114 as the fulcrum, until the fixed section 21 is completely placed in the locking space 13. At this time, the elastic pin 32 is in a bent state. After the external force is lost, the elastic pin 32 drives the lock core 31 to continue to apply force to the fixed section 21, so that the fixed section 21 is locked between the lock core 31 and the second fixing portion 12. When removing the body 2, first push the body 2 toward the first fixing portion 11, so that the lock core 31 moves outward a certain distance, and then lift one end of the connecting section 22 of the body 2 upward to leave the second fixing portion 12, and pull out the body 2, so that the fixed section 21 is out of the locking space 13, and the removal of the body 2 is completed.

[0046] Furthermore, a second avoidance position 213 is set on a side of the fixed section 21 facing the lock core member 31, and a second snap-in protrusion 212 is formed on the part of the fixed section 21 below the second avoidance position 213. After the body 2 is installed, the lock core substrate 311 is embedded in the second avoidance position 213. Based on the connection between the lock core substrate 311 and the first fixing part 11, the fixed section 21 of the body 2 is restricted by the lock core substrate 311 toward the direction of the first fixing part 11, and the fixed section 21 of the body 2 is restricted by the second fixing part 12 toward the second fixing direction. Under the action of the elastic locking assembly 3, the fixed section 21 is firmly locked to prevent it from escaping from the locking space 13.

[0047] Furthermore, the side surface of the second clamping protrusion 212 facing the first fixing portion 11 is an inclined surface. Figure 5 It can be seen that the inclined surface of the second clamping protrusion 212 is inclined downward from the first fixing portion 11 to the second fixing portion 12. The inclined surface of the second clamping protrusion 212 can guide the body 2 to fit into the locking space 13 and also avoid the elastic pin 32.

[0048] Furthermore, the first clamping protrusion 211 of the fixing section 21 is an inclined surface facing the second fixing portion 12. Figure 5 It can be seen that the inclined surface of the first clamping protrusion 211 is inclined from the second fixing portion 12 to the first fixing portion 11 and obliquely downward, and the inclination directions of the first clamping protrusion 211 and the second clamping protrusion 212 are opposite, so that the first clamping protrusion 211 and the second clamping protrusion 212 of the fixing section 21 of the body 2 form a shape that is small at the top and large at the bottom. When assembling the body 2, the connection between the body 2 and the base plate 1 can be achieved by pressing, which simplifies the assembly steps.

[0049] 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 double-wire self-ligating 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 a first fixing portion (11) and a second fixing portion (12) are arranged on the top surface of the base plate (1), the elastic locking assembly (3) is arranged on the side of the first fixing portion (11) facing the second fixing portion (12), a locking space (13) is formed between the elastic locking assembly (3) and the second fixing portion (12), the elastic locking assembly (3) holds and fixes one end of the body (2) in the locking space (13), the other end of the body (2) is outside the second fixing portion (12), the first arch wire (4) passes through one end of the body (2) and extends out of the locking space (13), the second arch wire (5) passes through the other end of the body (2), the second arch wire (5) is outside the second fixing portion (12), and the first arch wire (4) is parallel to the second arch wire (5); Wherein, the first arch wire (4) is fixedly connected to the body (2), and the second arch wire (5) is slidably connected to the body (2), or the first arch wire (4) is slidably connected to the body (2), and the second arch wire (5) is fixedly connected to the body (2).

2. The double-wire self-ligating bracket structure according to claim 1, characterized in that: The body (2) comprises an integrally formed fixing section (21) and a connecting section (22); the fixing section (21) is located in the locking space (13); the second fixing section (12) is provided with a fixing through slot (14); the connecting section (22) passes through the fixing through slot (14); a first clamping protrusion (211) is formed at the intersection of the fixing section (21) and the connecting section (22); two first clamping protrusions (211) are symmetrically distributed on both sides of the connecting section (22); the first clamping protrusion (211) abuts against the second fixing section (12); the first arch wire (4) passes through the fixing section (21); and the second arch wire (5) passes through the outer end of the connecting section (22).

3. The double-wire self-ligating bracket structure according to claim 2, characterized in that: A fixing groove (121) adapted to the first clamping protrusion (211) is provided on a surface of the second fixing portion (12) facing the fixing section (21).

4. The double-wire self-ligating bracket structure according to claim 2, characterized in that: A surface of the first locking protrusion (211) of the fixing section (21) facing the second fixing portion (12) is an inclined surface.

5. The double-wire self-ligating bracket structure according to claim 2, characterized in that: The first fixing portion (11) comprises an upper limit position member (112) and a lower support member (111) which are integrally formed, the upper and lower ends of the lower support member (111) being respectively connected to the upper limit position member (112) and the bottom plate (1), and a first avoidance position (113) is formed between the bottom surfaces of the left and right ends of the upper limit position member (112) and the bottom plate (1), and the two first avoidance positions (113) are located on both sides of the lower support member (111); The elastic locking assembly (3) comprises a lock core component (31) and an elastic pin shaft (32). The lock core component (31) comprises an integrally formed lock core substrate (311) and a connecting portion (312). The bottom surfaces on both sides of the lock core substrate (311) are respectively connected to the connecting portion (312). The inner side surface of the connecting portion (312) is provided with a guide groove (313) that matches with the left and right ends of the upper limit position component (112). The elastic pin shaft (32) passes through the connecting portions (312) on both sides and is located below the guide groove (313). The lock core component (31) is slidably connected to the upper limit position component (112) along the guide groove (313). The portion of the connecting portion (312) located below the guide groove (313) is located in the first avoidance position (113) on the same side. The elastic pin shaft (32) is located outside the lower support component (111).

6. The double-wire self-ligating bracket structure according to claim 5, characterized in that: The side surface of the lower support member (111) in the first avoidance position (113) is inclined from the inside to the outside to form an inclined side surface, and the two inclined side surfaces intersect to form a limiting edge (114), and the limiting edge (114) is close to the elastic locking assembly (3).

7. The double-wire self-ligating bracket structure according to claim 5, characterized in that: A second avoidance position (213) is provided on a side of the fixed section (21) facing the lock core member (31), a second clamping protrusion (212) is formed on the portion of the fixed section (21) below the second avoidance position (213), and the lock core substrate (311) is embedded in the second avoidance position (213) to prevent it from escaping from the locking space (13).

8. The double-wire self-ligating bracket structure according to claim 7, characterized in that: The side surface of the second locking protrusion (212) facing the first fixing portion (11) is an inclined surface.

9. The double-wire self-ligating bracket structure according to any one of claims 1 to 8, characterized in that: The diameter of the first arch wire (4) is smaller than the diameter of the second arch wire (5).

10. A corrective appliance, characterized in that: It comprises a double-wire self-ligating bracket structure as described in any one of claims 1 to 9.

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