阅读说明：本技术 自锁正畸托槽、矫正装置以及系统 (Self-ligating orthodontic brackets, orthotic devices, and systems ) 是由 陈贤明 林全红 周王峰 于 2020-08-27 设计创作，主要内容包括：本申请公开了自锁正畸托槽、矫正装置以及系统,其中自锁正畸托槽包括网底,所述网底的顶侧带有两个固定耳,各固定耳与所述网底之间为一体结构或分体固定结构；各固定耳分别开设有容许牙弓丝通过的弓丝孔,所述弓丝孔周向上为全封闭结构或局部带有开放区,两固定耳上的弓丝孔相对设置构成弓丝穿引通道。本申请公开的技术方案通过固定耳的设计取代了传统自锁托槽中槽体,从而避免了复杂的结构对生产制造以及日常使用清洁的影响；同时固定耳的结构能够克服传统技术方案中锁片容易失效的问题,从而能够给患者带来稳定方便的使用感受。(The application discloses a self-ligating orthodontic bracket, an orthodontic device and a system, wherein the self-ligating orthodontic bracket comprises a net bottom, the top side of the net bottom is provided with two fixing lugs, and an integrated structure or a split fixing structure is arranged between each fixing lug and the net bottom; the arch wire holes allowing the tooth arch wire to pass through are respectively arranged on each fixing lug, the arch wire holes are of a fully-closed structure or are provided with open areas at local parts in the circumferential direction, and the arch wire holes on the two fixing lugs are oppositely arranged to form an arch wire threading channel. According to the technical scheme disclosed by the application, the groove body in the traditional self-locking bracket is replaced by the design of the fixing lug, so that the influence of a complex structure on production, manufacturing and daily use and cleanness is avoided; the problem that the locking piece is easy to lose efficacy in the traditional technical scheme can be overcome to the structure of fixed ear simultaneously to can bring stable convenient use impression for the patient.)

1. The self-locking orthodontic bracket comprises a net bottom and is characterized in that the top side of the net bottom is provided with two fixing lugs, and an integrated structure or a split fixing structure is arranged between each fixing lug and the net bottom;

the arch wire holes allowing the tooth arch wire to pass through are respectively arranged on each fixing lug, the arch wire holes are of a fully-closed structure or are provided with open areas at local parts in the circumferential direction, and the arch wire holes on the two fixing lugs are oppositely arranged to form an arch wire threading channel.

2. The self-ligating orthodontic bracket of claim 1, wherein the securement ear is a resilient loop.

3. The self-ligating orthodontic bracket of claim 2, wherein each spring loop includes a fixed side connected to the web base and an extended side extending away from the web base; the two elastic rings gradually get away from the fixed side to the extending side or extend at equal intervals or get close to each other.

4. The self-ligating orthodontic bracket of claim 1, wherein the archwire hole comprises:

a guide located on a side of the arch wire hole away from the mesh bottom and allowing relative movement of the dental arch wire;

the clamping part is positioned at one side of the arch wire hole close to the net bottom and is clamped with the tooth arch wire.

5. The self-ligating orthodontic bracket of claim 4, wherein the guide portion has an underside that gradually converges in width until it interfaces with the engaging portion, the engaging portion extending as wide as and having a width that matches the size of the dental archwire.

6. The self-ligating orthodontic bracket of claim 1, wherein the archwire holes are axially angled.

7. The self-ligating orthodontic bracket of claim 1, wherein the web base has a raised top side and a middle portion and is smoothly transitioned from the middle portion to both sides to form two transition surfaces, and the two securing ears are respectively disposed on the two transition surfaces; the axial direction of each arch wire hole is approximately parallel to the transition surface.

8. An orthodontic device comprising the self-ligating orthodontic bracket of any one of claims 1-7 and a ligature disposed thereon;

the top sides or the middle parts of the fixing lugs are provided with widened parts protruding relative to the bottom sides, the ligature wires embrace at least one fixing lug and drive the dental arch wire to be attached to the top sides of the net bottoms under the pushing of the widened parts.

9. The orthotic device of claim 8, wherein said ligature wire embraces said two securing ears and the sides of said two securing ears distal from said mesh bottom move away from each other to tend to move said ligature wire toward said mesh bottom.

10. An orthotic device system, comprising the self-ligating orthodontic bracket of any one of claims 1 to 7, a ligature disposed on the self-ligating orthodontic bracket, and a dental archwire threaded onto the self-ligating orthodontic bracket; the dental arch wire exerts the correcting force through the self-locking orthodontic bracket.

Technical Field

The present application relates to the field of orthodontics, and more particularly to self-ligating orthodontic brackets, orthodontic devices and systems.

Background

The existing active self-ligating bracket structure basically adopts a SPEED form or a flip-open cover form structure, and the bracket with the structure has the greatest advantage that the passive ligation function can be realized when thin round wires are adopted in early treatment, and the active ligation function can be realized when thick wires are changed. For example, Chinese patent publication No. CN209751255U discloses a self-ligating bracket for orthodontic treatment, which comprises an orthodontic bracket body, a sliding cover, a pin, an elastic component and a net bottom, the orthodontic bracket body is provided with a groove capable of accommodating an orthodontic tooth arch wire, two sides of the groove are respectively provided with a first ligating wing and a second ligating wing, the first ligation wing is provided with a guide groove in which the sliding cover slides, the sliding cover is arranged in the guide groove, the sliding direction of the sliding cover is vertical to the direction of the groove, the bottom of the guide groove is provided with a hole through which the pin passes, the bottom of the sliding cover is provided with a blind hole which is shaped like a Chinese character 'ji', the elastic component is embedded in the blind hole, the elastic component is a spring piece or a spring pin and is in the shape of ︺ or V, the net bottom is arranged at the back of the orthodontic bracket body, and the orthodontic tooth arch wire is fixed in the groove on the orthodontic bracket body after the sliding cover is closed.

The inventor finds that the self-ligating bracket with the active ligation function has the biggest problem that the cover plate is easy to damage after being stressed clinically; meanwhile, due to the complex structure, the self-ligating bracket is difficult to clean in the daily use process of a patient, and an improvement space exists.

Disclosure of Invention

In order to solve the technical problem, the application discloses a self-locking orthodontic bracket which comprises a net bottom, wherein the top side of the net bottom is provided with two fixing lugs, and an integral structure or a split fixing structure is formed between each fixing lug and the net bottom;

the arch wire holes allowing the tooth arch wire to pass through are respectively arranged on each fixing lug, the arch wire holes are of a fully-closed structure or are provided with open areas at local parts in the circumferential direction, and the arch wire holes on the two fixing lugs are oppositely arranged to form an arch wire threading channel.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the fixing lug is an elastic ring.

Optionally, each elastic ring comprises a fixed side connected with the net bottom and an extended side extending away from the net bottom; the two elastic rings gradually get away from the fixed side to the extending side or extend at equal intervals or get close to each other.

Optionally, the archwire aperture comprises:

a guide located on a side of the arch wire hole away from the mesh bottom and allowing relative movement of the dental arch wire;

the clamping part is positioned at one side of the arch wire hole close to the net bottom and is clamped with the tooth arch wire.

Optionally, the width of the bottom side of the guide portion gradually converges until the guide portion is abutted against the engaging portion, and the engaging portion extends in an equal width and has a width adapted to the size of the dental arch wire.

Optionally, the axial direction of the two arch wire holes is arranged at an included angle.

Optionally, the middle part of the top side of the net bottom is raised and smoothly transited from the middle part to two sides to form two transition surfaces, and the two fixing lugs are respectively arranged on the two transition surfaces; the axial direction of each arch wire hole is approximately parallel to the transition surface.

The application also discloses an orthodontic device, which comprises the self-locking orthodontic bracket and a ligature wire arranged on the self-locking orthodontic bracket according to the technical scheme;

the top sides or the middle parts of the fixing lugs are provided with widened parts protruding relative to the bottom sides, the ligature wires embrace at least one fixing lug and drive the dental arch wire to be attached to the top sides of the net bottoms under the pushing of the widened parts.

Optionally, the ligature wire is held by the two fixing lugs, and the two fixing lugs are far away from one side of the net bottom and are mutually far away from the net bottom to tend the ligature wire moves towards the direction of the net bottom.

The application also discloses an orthodontic device system, which comprises the self-locking orthodontic bracket, a ligature wire arranged on the self-locking orthodontic bracket and a dental arch wire threaded on the self-locking orthodontic bracket in the technical scheme; the dental arch wire exerts the correcting force through the self-locking orthodontic bracket.

According to the technical scheme disclosed by the application, the groove body in the traditional self-locking bracket is replaced by the design of the fixing lug, so that the influence of a complex structure on production, manufacturing and daily use and cleanness is avoided; the problem that the locking piece is easy to lose efficacy in the traditional technical scheme can be overcome to the structure of fixed ear simultaneously to can bring stable convenient use impression for the patient.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIGS. 1 a-1 d are schematic views of a self-ligating orthodontic bracket in one embodiment;

FIG. 2 is a schematic view of an orthotic device according to one embodiment;

figures 3a and 3b are schematic views of an orthotic device system according to one embodiment.

The reference numerals in the figures are illustrated as follows:

1. a net bottom; 11. a transition surface;

2. fixing the ear; 21. an archwire hole; 211. a guide section; 212. a fastening part; 22. an arch wire threading channel; 23. a fixed side; 24. an extension side;

3. tying the wires;

4. a dental arch wire.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1a to 1d, the application discloses a self-locking orthodontic bracket, which comprises a net bottom 1, wherein the top side of the net bottom 1 is provided with two fixing lugs 2, and an integral structure or a split fixing structure is arranged between each fixing lug 2 and the net bottom 1;

the fixing lugs 2 are respectively provided with arch wire holes 21 for allowing the dental arch wire 4 to pass through, the arch wire holes 21 are of a fully closed structure or are provided with open areas at partial parts along the circumferential direction, and the arch wire holes 21 on the two fixing lugs 2 are oppositely arranged to form an arch wire threading channel 22.

The fixing lug 2 plays a role of a groove body in a traditional self-locking bracket, can restrain the dental arch wire 4 and transmits acting force of the dental arch wire 4 to teeth to realize orthodontic effect. The fixed ear 2 can realize the restraint of the dental arch wire 4, so that the arrangement of a cover plate in the traditional self-locking bracket is not needed, the problem that the cover plate is easy to lose efficacy after being opened and closed for many times is avoided, and the stability of the self-locking orthodontic bracket is improved. Correspondingly, because the change of structure has avoided the complicated problem of traditional self-ligating bracket structure, is convenient for clean and maintain, wears the in-process at patient's daily easy to operate, promotes the user and feels.

In order to meet different orthodontic requirements during different treatment procedures, the fixing ears 2 may have various deformations, such as changes in the extension direction, changes in the open form, etc., including in the material, and the fixing ears 2 may be adjusted accordingly. In one embodiment, the fixing lug 2 is an elastic ring. The fixing ear 2 can realize the function of an elastic ring by nickel-titanium material, the elastic ring can realize more orthodontic effects by utilizing the elasticity of the elastic ring, for example, the elastic ring can generate positive pressure on a dental arch wire 4 with proper thickness, thereby facilitating the moment transmission of the dental arch wire 4; and can realize active self-locking of the dental arch wire 4, thereby realizing the functions of the traditional self-locking bracket and the like.

In the form of the fastening ears 2, with reference to one embodiment, each elastic loop comprises a fastening side 23 connected to the net bottom 1 and an extension side 24 extending away from the net bottom 1; the two elastic loops extend away from or at equal distances from the fastening side 23 to the extension side 24 or close to each other.

The fastening side 23 is used to transmit the moment between the fastening lug 2 and the net bottom 1, and the extension side 24 is used to facilitate the assembly and mounting and fitting. With reference to the solution of the figures, the elastic force of the elastic ring is achieved by deformation of the expansion side 24 with respect to the fixation side 23. The arrangement between the two fixing ears 2 can be changed in different treatment processes, for example, the two elastic rings shown in the drawings are gradually separated from the fixing side 23 to the extending side 24, or the two elastic rings not shown in the drawings can be used to extend from the fixing side 23 to the extending side 24 at equal distances or to approach each other.

The different arrangement cores between the two fixing lugs 2 are used for better transmitting the stress of the dental arch wire 4 to the net bottom 1, and the part of the fixing lug 2, which is directly contacted with the dental arch wire 4, is an arch wire hole 21. In the setting of the archwire aperture 21, with reference to one embodiment, the archwire aperture 21 comprises:

a guide 211 located on the side of the archwire slot 21 remote from the net bottom 1 and allowing relative movement of the dental archwire 4;

and an engaging portion 212 which is located on the side of the archwire hole 21 close to the net bottom 1 and engages with the dental archwire 4.

The guiding portion 211 is used for conveniently threading the dental arch wire 4, so that the work of operators such as clinicians is facilitated, and the clamping portion 212 is used for bearing the moments of the dental arch wire 4 in multiple directions to realize the orthodontic process. In order to achieve the above functions, the shapes of the two components also need to be adjusted accordingly. Further, referring to an embodiment, the bottom width of the guiding portion 211 gradually converges until it is abutted against the engaging portion 212, and the engaging portion 212 extends with a constant width and a width adapted to the size of the dental arch wire 4.

The inner shape and size of the guide 211 is larger than the outer shape and size of the dental arch wire 4, allowing threading of the dental arch wire 4; the width of the engaging portion 212 is adapted to the size of the dental arch wire 4 to receive stress in various directions. Both the guide 211 and the catch 212 are in communication with each other and smoothly transition, thereby allowing the dental archwire 4 to move between them to meet the needs of use in different situations. In the illustrated embodiment, the width dimension of the engaging portion 212 is defined as the position shown at D1, and the overall cross-sectional shape of the engaging portion 212 is also substantially rectangular to fit within a suitably sized dental archwire 4.

In addition to the shape of the archwire aperture 21 itself constraining the dental archwire 4, the interrelationship between the archwire apertures 21 on the two securing ears 2 also stresses the dental archwire 4. In one embodiment, the two archwire holes 21 are angled axially.

When the axial directions of the two arch wire holes 21 are arranged at an included angle, the arch wire holes 21 can generate prestress on the dental arch wire 4, so that the stress of the dental arch wire 4 is better transmitted to the net bottom 1. With reference to the drawings, the axial angle between the two archwire holes 21 is shown as angle a. This angle can be achieved by the oblique arrangement of the archwire opening 21 on the surface of the fixing lug 2 or by the self-inclination of the fixing lug 2. In a specific reference embodiment, the middle part of the top side of the net bottom 1 is raised and smoothly transited from the middle part to two sides to form two transition surfaces 11, and the two fixing lugs 2 are respectively arranged on the two transition surfaces 11; the axial direction of each archwire hole 21 is generally parallel to the transition face 11 in which it is located. The advantage of this embodiment is that the archwire hole 21 is perpendicular to the surface of the fixing lug 2, and is easy to process, and the two fixing lugs 2 form a certain angle with each other, so as to meet the use requirements of other components.

Referring to fig. 2, the present application further discloses an orthodontic device comprising a self-ligating orthodontic bracket according to the above technical solution and a ligature wire 3 disposed on the self-ligating orthodontic bracket;

the top side or the middle part of the fixing lug 2 is provided with a widened part protruding relative to the bottom side, the ligature wire 3 embraces at least one fixing lug 2, and the ligature wire 3 drives the dental arch wire 4 to be attached to the top side of the net bottom 1 under the pushing of the widened part.

The widened region may be a separate component, or may be formed by extending the material of the fixing lug 2 itself, or may be a widening in the dimension of the fixing lug 2 itself as shown in the drawings. The widened part can drive the ligature wire 3, ensure the pressure of the ligature wire on the dental arch wire 4 and realize the function of passive ligature.

The ligature wire 3 can be driven by the arrangement mode of the two fixing lugs 2 besides the widening part. In one embodiment, the ligature wire 3 is held by the two fixing lugs 2, and the sides of the two fixing lugs 2 far away from the net bottom 1 are far away from each other to tend the ligature wire 3 to move towards the net bottom 1.

The sides of the two fixing lugs 2 far away from the net bottom 1 are far away from each other, so that the widening part is actually widened, and the ligature wire 3 is driven to move towards the direction of the net bottom 1. With reference to the embodiment of the figures, the ligature 3 is in fact subjected to two forces, one being the driving force generated by the mutual distancing of the two fixing lugs 2 and the other being the driving force of the widened portion formed by the widening of the fixing lugs 2 themselves.

In this embodiment, the sides of the two fixing lugs 2 far away from the net bottom 1 are far away from each other, which may cause inconvenience in installing the dental arch wire 4, so that an annular bridge (not shown) may be further provided to assist in installing the dental arch wire 4. The annular bridge is installed from the gum jaw of the fixing ear 2 to the side, and the fixing ear 2 can be erected before the dental arch wire 4 enters the arch wire hole 21, so that the dental arch wire 4 is convenient to install. Before the tooth arch wire 4 penetrates into the fixing ear 2, the fixing ear 2 is erected on the annular bridge, after the tooth arch wire 4 penetrates into the fixing ear 2, a special tool is inserted into the fixing ear 2 and then rotates to enable the fixing ear 2 to be unfolded and separated from the annular bridge, the tooth arch wire 4 is directly pressed on the tooth arch wire 4, and the tooth arch wire 4 is continuously and softly gradually pressed into the clamping part 212 through the elasticity of the fixing ear 2. In a specific product, the fixed lug 2 can be also provided with an inclined guide slope which facilitates the tooth arch wire 4 to enter the groove.

In practical use, in combination with specific clinical data, the application exemplarily gives a reference size, when the diameter of the dental arch wire 4 is less than or equal to 0.016 ", the fixing lug 2 can not form pressure on the dental arch wire 4, and when the size of the dental arch wire 4 is more than 0.020", the fixing lug 2 generates pressure on the dental arch wire 4.

Referring to fig. 3a to 3b, the present application further discloses an orthodontic device system, comprising the self-ligating orthodontic bracket of the above technical solution, a ligature wire 3 arranged on the self-ligating orthodontic bracket, and a dental arch wire 4 threaded on the self-ligating orthodontic bracket; the dental arch wire 4 exerts the correcting force through the self-locking orthodontic bracket.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.