Orthodontic self-ligating bracket

Abstract

The utility model discloses an orthodontic self-ligating bracket, and relates to the technical field of orthodontics, the orthodontic self-ligating bracket comprises a bracket main body, a lock cover, an elastic piece, a slideway, a first clamping bulge and a second clamping bulge, the technical scheme of the utility model is as follows: the slideway is provided with an opening along the insertion direction of the lock cover; the lock cover is pushed to be inserted into the bracket main body, the elastic piece enters the slide way in an unobstructed manner through the slide way along the opening in the insertion direction of the lock cover, and the elastic piece moves between the first clamping bulge and the second clamping bulge after passing through the first clamping bulge, so that the relative limitation of the bracket main body and the lock cover is completed, and the lock cover is continuously pushed; the elastic piece moves into the side, away from the first clamping protrusion, of the second clamping protrusion through the second clamping protrusion, the lock cover and the bracket body are relatively fixed, through the design, the force needing to be applied by an assembler to insert the lock cover into the bracket body is smaller, assembling is convenient, and therefore the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and in particular to an orthodontic self-ligating bracket. Background Technology

[0002] With societal development, people are paying more attention to orthodontics. Traditional orthodontic bracket treatment typically relies on ordinary metal brackets and metal ligatures or elastic ligatures to fix the archwire. This method is not only complex to operate, but the ends of the ligatures can easily cause trauma to the oral soft tissues. The emergence of self-ligating brackets, through their unique self-ligating mechanism, effectively solves these problems. With the continuous advancement of materials science and oral medicine technology, their design and function have been further improved. Today, self-ligating brackets have become one of the mainstream choices in fixed orthodontic treatment.

[0003] Existing self-locking brackets generally include a bracket body, a sliding cover, an elastic element, and a base plate. These four parts constitute the self-locking bracket. During assembly, it is often necessary to push the sliding cover to force the elastic element to deform and match the bottom of the sliding cover. In this process, a large amount of pressure is often required to be applied to the length of the elastic element, which makes assembly inconvenient. Utility Model Content

[0004] The main purpose of this invention is to propose an orthodontic self-locking bracket, which aims to improve the problem of difficult assembly in the prior art.

[0005] To achieve the above objectives, the orthodontic self-ligating bracket proposed in this utility model includes:

[0006] The bracket body is provided with mounting holes;

[0007] A locking cover is slidably inserted into the bracket body. A slide is provided on the inner side of the locking cover. The slide opens towards the mounting hole and along the insertion direction of the locking cover. The opening of the slide towards the mounting hole is opposite to the opening of the mounting hole.

[0008] An elastic element is provided in the mounting hole, the elastic element extends out of the bracket body, and cooperates with the slide rail provided in the lock cover;

[0009] The slide rail has a first locking protrusion and a second locking protrusion spaced apart on its side. The slide rail has an avoidance notch on the side opposite to the first locking protrusion. The first locking protrusion and the second locking protrusion restrict the portion of the elastic element that extends into the slide rail.

[0010] In one embodiment, the opening of the slide along the insertion direction of the lock cover is defined as a slide entrance;

[0011] The first locking protrusion includes an abutting surface near the sliding entrance, the abutting surface facing the clearance notch.

[0012] In one embodiment, the side of the slide connected to the first locking protrusion is defined as the first base surface;

[0013] The distance from the surface of the first locking protrusion away from the first base surface to the first base surface is greater than or equal to the distance from the axis of the elastic element to the first base surface.

[0014] In one embodiment, the first locking protrusion further includes a limiting surface, the limiting surface and the abutting surface being opposite to each other, the limiting surface being perpendicular to the first base surface or the inclination direction of the limiting surface being consistent with the inclination direction of the abutting surface.

[0015] In one embodiment, the distance from the side of the clearance notch near the first locking protrusion to the first locking protrusion is greater than the maximum inner diameter of the elastic element cross-section.

[0016] In one embodiment, the bracket body is provided with a recessed groove, the opening of the recessed groove faces the lock cover, the length direction of the recessed groove is the same as the insertion direction of the lock cover, the side wall of the recessed groove away from the lock cover is provided with the placement hole, and the opening of the placement hole is provided with a first avoidance area.

[0017] In one embodiment, the mounting hole is connected to a second clearance area, which is connected to the first clearance area, and the second clearance area and the clearance notch are located on the same side of the elastic member.

[0018] In one embodiment, the orthodontic self-ligating bracket further includes a base plate, which is integrally connected to the bracket body on the side away from the locking cover. The base plate has a cavity for dispensing the dispensing agent, the opening of which faces away from the bracket body. The side of the base plate has a dispensing notch that communicates with the cavity for dispensing the dispensing agent.

[0019] In one embodiment, the container cavity is provided with a retaining protrusion.

[0020] In one embodiment, the mounting hole has a through hole on the side wall away from the lock cover, and the through hole passes through the base plate.

[0021] The technical solution of this utility model solves the problem of difficult assembly by adopting an opening in the slide along the insertion direction of the lock cover. During the assembly process, the assembler first places the elastic element into the placement hole, and then pushes the lock cover into the bracket body. First, the elastic element enters the slide unobstructed through the opening in the insertion direction of the lock cover. Second, after the elastic element contacts the first locking protrusion, it is mainly subjected to a bending deformation force in the direction of the protrusion. Then, the elastic element bends and deforms towards the clearance notch to store elastic potential energy. After passing through the first locking protrusion, the elastic potential energy of the elastic element is released, and the elastic element moves between the first locking protrusion and the second locking protrusion, completing the relative restriction between the bracket body and the lock cover. Continuing to push the lock cover, the elastic element moves past the second locking protrusion to the side of the second locking protrusion away from the first locking protrusion. The lock cover and the bracket body are relatively fixed. Through the above design, the force required for the assembler to insert the lock cover into the bracket body is smaller, which facilitates assembly and improves assembly efficiency. Attached Figure Description

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the assembled orthodontic self-ligating bracket provided by this utility model;

[0024] Figure 2 This is an exploded view of the orthodontic self-locking bracket provided by this utility model;

[0025] Figure 3 This is a structural schematic diagram of the orthodontic self-locking bracket lock cover provided by this utility model;

[0026] Figure 4 A side view of the orthodontic self-ligating bracket provided by this utility model;

[0027] Figure 5 This is a structural schematic diagram of the orthodontic self-ligating bracket body provided by this utility model;

[0028] Figure 6 A cross-sectional view of the orthodontic self-ligating bracket provided by this utility model;

[0029] Figure 7 A bottom view of the orthodontic self-ligating bracket provided by this utility model;

[0030] Figure 8 A bottom view of the orthodontic self-locking bracket lock cover provided by this utility model;

[0031] Figure 9 A diagram showing the connection relationship between the elastic element and the locking cover in one embodiment of the orthodontic self-locking bracket provided by this utility model;

[0032] Figure 10 This is a diagram showing the connection relationship between the elastic element and the lock cover in another embodiment of the orthodontic self-locking bracket lock provided by this utility model;

[0033] Figure 11 A schematic diagram of the structure of the orthodontic self-locking bracket elastic element and the bracket body provided by this utility model;

[0034] Figure 12 for Figure 6 A partially enlarged sectional view at point A in the middle;

[0035] Figure 13 This is a cross-sectional view of yet another embodiment of the orthodontic self-ligating bracket provided by this utility model.

[0036] Description of Figure Numbers:

[0037] 100. Orthodontic self-ligating bracket; 1. Bracket body; 10. Groove; 101. First sidewall; 102. Second sidewall; 103. Third bottom wall; 11. Placement hole; 111. First clearance area; 112. Second clearance area; 12. Second track support surface; 13. First ligation area; 14. Second ligation area; 141. First ligation wing; 142. Second ligation wing; 143. First support surface; 144. Second support surface; 15. Guide rail; 151. First track support surface; 2. Lock 21. Cover; 21. Slide; 211. First locking protrusion; 212. Second locking protrusion; 213. Avoidance notch; 214. Slide entrance; 215. Contact surface; 216. Limiting surface; 217. Vertical surface; 218. First limiting point; 219. Second limiting point; 22. Second reverse track surface; 23. First reverse track surface; 24. Front assembly surface; 25. Bottom surface; 209. Unlocking groove; 3. Elastic element; 4. Base plate; 41. Dispensing cavity; 42. Dispensing notch; 43. Retaining protrusion; 44. Through hole.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0041] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0042] With societal development, people are paying more attention to orthodontics. Traditional orthodontic bracket treatment typically relies on ordinary metal brackets and metal ligatures or elastic ligatures to fix the archwire. This method is not only complex to operate, but the ends of the ligatures can easily cause trauma to the oral soft tissues. The emergence of self-ligating brackets, through their unique self-ligating mechanism, effectively solves these problems. With the continuous advancement of materials science and oral medicine technology, their design and function have been further improved. Today, self-ligating brackets have become one of the mainstream choices in fixed orthodontic treatment.

[0043] Existing brackets generally consist of four parts: the bracket body, the sliding cover, the elastic element, and the base plate. During assembly, it is often necessary to push the sliding cover to force the elastic element to deform and match the bottom of the sliding cover. In this process, a large amount of pressure is often applied to the length of the elastic element, which makes assembly inconvenient.

[0044] This utility model proposes an orthodontic self-locking bracket 100.

[0045] Please see Figure 1-3 In one embodiment of this utility model, the orthodontic self-ligating bracket 100 includes:

[0046] The bracket body 1 is provided with a mounting hole 11;

[0047] Lock cover 2, which is slidably inserted into the bracket body 1. A slide 21 is provided on the inner side of the lock cover 2. The slide 21 opens towards the mounting hole 11 and also opens along the insertion direction of the lock cover 2. The opening of the slide 21 towards the mounting hole 11 is opposite to the opening of the mounting hole 11.

[0048] The elastic element 3 is partially disposed in the mounting hole 11, and the elastic element 3 extends out of the bracket body 1 and cooperates with the slide 21 provided on the lock cover 2;

[0049] The slide 21 is provided with a first locking protrusion 211 and a second locking protrusion 212 at intervals on its side. The slide 21 is provided with an avoidance notch 213 on the side opposite to the first locking protrusion 211. The first locking protrusion 211 and the second locking protrusion 212 restrict the portion of the elastic member 3 that extends into the slide 21.

[0050] The technical solution of this utility model solves the problem of difficult assembly by adopting an opening in the slide 21 along the insertion direction of the lock cover 2. During the assembly process, the assembler first places the elastic element 3 into the mounting hole 11, and then pushes the lock cover 2 into the bracket body 1. First, the elastic element 3 enters the slide 21 without obstruction through the opening in the slide 21 along the insertion direction of the lock cover 2. Second, after the elastic element 3 contacts the first locking protrusion 211, the elastic element 3 will be subjected to a force applied by the first locking protrusion 211 in the direction of movement of the lock cover 2. However, the elastic element 3 is mainly subjected to a bending deformation force in the direction of the protrusion. After being subjected to the force, the elastic element 3... The bending deformation of the avoidance notch 213 stores elastic potential energy. After passing through the first locking protrusion 211, the elastic potential energy of the elastic element 3 is released, and the elastic element 3 moves between the first locking protrusion 211 and the second locking protrusion 212, completing the relative restriction between the bracket body 1 and the locking cover 2. Continuing to push the locking cover 2, the elastic element 3 moves past the second locking protrusion 212 to the side of the second locking protrusion 212 away from the first locking protrusion 211. At this time, the locking cover 2 and the bracket body 1 are relatively fixed. Through the above design, the force required for the assembler to insert the locking cover 2 into the bracket body 1 is reduced, which facilitates assembly and improves assembly efficiency.

[0051] Combination Figure 4As shown, it should be noted that the bracket body 1 has a groove 10 suitable for archwire insertion. The groove 10 includes a first sidewall 101, a second sidewall 102, and a third bottom wall 103. The first sidewall 101 is the sidewall away from the locking cap 2. In clinical use, enamel bonding agent is applied to the bracket body 1, and then the assembled bracket assembly is placed on the tooth surface and pressed to make the bracket body 1 fit and contact the tooth surface to complete the fixation. After fixation, the first sidewall 101 and the second sidewall 102 restrict the movement of the archwire in the gingival-occlusal direction, and the third bottom wall 103 and the first and second planes of the locking cap 2 restrict the movement of the archwire in the labial-lingual direction. Figure 1 The bracket body 1 is provided with an unlocking groove 209, which facilitates the insertion of clinical tools to open the lock cover 2.

[0052] Combination Figure 8 As shown, a first limiting point 218 is provided between the first locking protrusion 211 and the second locking protrusion 212. When the elastic element 3 is located at the first limiting point 218, the elastic element does not deform. A second limiting point 219 is provided on the side of the second locking protrusion 212 away from the first limiting point 218, when the elastic element 3 does not deform. When the elastic element 3 is located at the first limiting point 218, the groove 10 is not closed by the locking cover 2, but the locking cover 2 and the bracket body 1 are relatively restricted to form a whole, which facilitates the operation of medical personnel. When the elastic element 3 is located at the second limiting point 219, the groove 10 is closed by the locking cover 2, restricting the movement of the archwire.

[0053] It should be noted that the opening of the slide 21 along the insertion direction of the lock cover 2 is defined as the slide entrance 214;

[0054] The first locking protrusion 211 includes an abutment surface 215 near the sliding entrance 214, the abutment surface 215 facing the avoidance notch 213.

[0055] It is understandable that during the insertion of the locking cover 2, the elastic element 3 first contacts the abutment surface 215. As the locking cover 2 continues to be pushed forward, the abutment surface 215 forces the elastic element 3 to deform under force, such as... Figure 9As shown by the dashed lines and arrows, the elastic element 3 will slide along the contact surface 215, which faces the clearance notch 213. This will cause the part of the elastic element 3 in contact with the contact surface 215 to bend and deform towards the clearance notch 213. During this process, the elastic element 3 will be subjected to a component force from the contact surface 215 in the direction of movement of the lock cover 2 and a component force towards the clearance notch 213. The contact surface 215 facing the clearance notch 213 will reduce the component force on the elastic element 3 along the closing direction of the lock cover 2, thereby reducing its deformation along the closing direction of the lock cover 2.

[0056] In one embodiment, the contact surface 215 is a horizontal slope.

[0057] In another embodiment, the contact surface 215 is an arc surface.

[0058] It is understandable that when the assembler inserts the lock cover 2 into the tray body 1, the contact surface 215 faces the clearance notch 213, which makes the force required by the assembler less, facilitates assembly, and thus improves assembly efficiency.

[0059] It should be noted that the side of the slide 21 connected to the first card slot protrusion 211 is defined as the first base surface;

[0060] Preferably, the distance from the surface of the first locking protrusion 211 away from the first base surface to the first base surface is greater than or equal to the distance from the axis of the elastic member 3 to the first base surface.

[0061] Combination Figure 9 As shown, it can be understood that after the elastic element 3 passes the first locking protrusion 211, the elastic potential energy stored in the elastic element 3 is released, and the elastic element 3 returns to its shape and enters the first limiting position 218. Since the distance from the surface of the first locking protrusion 211 away from the first base surface to the first base surface is greater than or equal to the distance from the axis of the elastic element 3 to the first base surface, when the elastic element 3 is located at the first limiting position 218, when the locking cover 2 and the bracket body 1 move away from each other, the elastic element 3 is not easy to forcibly cross the first locking protrusion 211 and move towards the avoidance notch 213.

[0062] Combination Figure 10 It is understood that after the elastic element 3 passes the second locking protrusion 212, the elastic potential energy stored in the elastic element 3 is released, the elastic element 3 returns to its shape and enters the second limiting position 219. At this time, the locking cover 2 and the bracket body 1 are locked together, and the groove 10 is closed.

[0063] In one embodiment, the first locking protrusion 211 further includes a vertical surface 217 parallel to the first base surface, the distance from the vertical surface 217 to the first base surface being equal to the distance from the axis of the elastic member 3 to the first base surface.

[0064] In another embodiment, the first locking protrusion also includes the vertical surface 217, the difference being that the distance from the vertical surface 217 to the first base surface is greater than the distance from the axis of the elastic member 3 to the first base surface.

[0065] In another embodiment, the first locking protrusion 211 includes the abutting surface 215 and the limiting surface 216. The limiting surface 216 is opposite to the abutting surface 215 and connected to the abutting surface 215. The distance from the connection point of the abutting surface 215 and the limiting surface 216 to the first base surface is equal to the distance from the axis of the elastic member 3 to the first base surface.

[0066] In another embodiment, the distance from the junction of the contact surface 215 and the limiting surface 216 to the first base surface is greater than the distance from the axis of the elastic member 3 to the first base surface.

[0067] It should be noted that the first card slot protrusion 211 can be trapezoidal, triangular, or 1 / 4 circle, etc. There are many other shapes that can achieve the same function, which will not be described in detail here.

[0068] It is understandable that the first locking protrusion 211 ensures the relative restriction between the locking cover 2 and the bracket body 1 after assembly, that is, the locking cover 2 is not easy to separate from the bracket body 1, thereby improving the stability of the mutual restriction between the bracket body 1 and the locking cover 2 after assembly.

[0069] Preferably, the first locking protrusion 211 further includes a limiting surface 216, the limiting surface 216 and the contact surface 215 are opposite to each other, the limiting surface 216 is perpendicular to the first base surface or the inclination direction of the limiting surface 216 is consistent with the inclination direction of the contact surface 215.

[0070] Combination Figure 8 It is understood that the elastic element 3 is located at the first limiting position 218. When the locking cover 2 and the bracket body 1 move away from each other, the force direction of the elastic element 3 is mainly determined by the position of the contact point that contacts the limiting surface 216 and the normal direction of the contact point. As can be seen from the above, the abutting surface 215 is facing the avoidance gap 213, that is, the abutting surface 215 is inclined to the side of the slide 21 away from the slide entrance 214.

[0071] Preferably, the limiting surface 216 and the contact surface 215 are inclined in the same direction. When the lock cover 2 and the bracket body 1 move away from each other, due to the inclined design, the part of the elastic member 3 that contacts the slide 21 is mainly subjected to a component force opposite to the insertion direction of the lock cover 2 and a component force toward the side away from the clearance notch 213. This ensures that the part of the elastic member 3 that cooperates with the slide 21 will not slide out through the clearance notch 213 when the lock cover 2 and the bracket body 1 move away from each other.

[0072] In another embodiment, the limiting surface 216 is perpendicular to the first base surface. When the lock cover 2 moves away from the bracket body 1, the part of the elastic member 3 that contacts the slide 21 is mainly subjected to a force opposite to the insertion direction of the lock cover 2.

[0073] It is understandable that by designing the limiting surface 216 to be inclined or perpendicular to the first base surface, when the locking cover 2 and the bracket body 1 are assembled and subjected to opposing forces, the two are not easily separated, thereby improving the stability of the mutual constraint between the bracket body 1 and the locking cover 2 after assembly.

[0074] Preferably, the distance from the side of the clearance notch 213 near the first locking protrusion 211 to the first locking protrusion 211 is greater than the maximum inner diameter of the cross section of the elastic element 3.

[0075] Combination Figure 8 and Figure 9 It should be noted that after the elastic element 3 deforms upon contact with the contact surface 215, the elastic element 3 will pass through the clearance notch 213 until it recovers its shape, releases its elastic potential energy, and enters the first limiting position 218. During the above process, one side of the elastic element is always in contact with the first locking protrusion 211. Since the distance from the clearance notch 213 to the first locking protrusion 211 is greater than the maximum inner diameter of the cross-section of the elastic element 3, the elastic element 3 will not be squeezed by the clearance notch 213 and the first locking protrusion 211 during movement. The elastic element 3 can smoothly enter the first limiting position 218 without compression, which not only ensures the service life of the elastic element 3, but also makes the assembly personnel require less force during assembly, making assembly more convenient.

[0076] Optionally, the elastic element 3 can be a solid cylinder or a hollow cylindrical tube.

[0077] Preferably, the wall thickness of the hollow cylindrical tube of the elastic element 3 is between 0.05 mm and 0.4 mm.

[0078] Optionally, the elastic element 3 can be made of highly elastic metal materials such as stainless steel or nickel-titanium shape memory alloy.

[0079] In one embodiment, the elastic element 3 is a hollow structure. In this case, even if the distance from the side of the clearance notch 213 near the first locking protrusion 211 to the first locking protrusion 211 is less than the maximum inner diameter of the cross-section of the elastic element 3, the hollow structural design increases the maximum elastic deformation of the elastic element 3. The elastic element 3 can be deformed by compression through the clearance notch 213, move to the first limiting position 218, and restore its shape.

[0080] Preferably, the bracket body 1 is provided with a recessed groove, the opening of the recessed groove faces the lock cover 2, the length direction of the recessed groove is the same as the insertion direction of the lock cover 2, the side wall of the recessed groove away from the lock cover 2 is provided with the placement hole 11, and the opening of the placement hole 11 is provided with a first avoidance area 111.

[0081] Combination Figure 3 and Figure 5 The recessed groove has a plane with the mounting hole 11 as a second track support surface 12. The inner side of the lock cover 2 has a second reverse track surface 22 that cooperates with the second track support surface 12. When the elastic member 3 deforms in contact with the first locking protrusion 211 and the second locking protrusion 212, the part of the elastic member 3 located inside the mounting hole 11 will not deform due to the restriction of the mounting hole 11. Therefore, the part of the elastic member 3 that extends out of the mounting hole 11 deforms. The recessed groove can increase the volume of the deformable part of the elastic member 3, increase the lever arm, provide a larger deformable range, and facilitate the assembly of the lock cover 2 and the bracket body 1.

[0082] Preferably, combined with Figure 6 The first clearance area 111 is a circular clearance area opened around the opening of the mounting hole 11. Through the first clearance area 111, the deformable volume of the elastic member 3 can be further increased, that is, the lever arm length can be increased, so that the thrust required during assembly is smaller, which facilitates assembly and improves assembly efficiency. At the same time, when the elastic member 3 is placed to the mounting hole 11, the first clearance area 111 can play a guiding role, which facilitates assembly and improves assembly efficiency.

[0083] In one embodiment, the first clearance area 111 is a clearance area opened on the side of the mounting hole 11 facing the groove 10 and on the side near the clearance notch 213. Since the main deformation direction of the elastic member 3 is the above two directions, by setting clearance areas in the above two directions, the lever arm distance when the elastic member 3 is deformed by force can be increased, which facilitates assembly.

[0084] Preferably, the mounting hole 11 is connected to a second clearance area 112, the second clearance area 112 is connected to the first clearance area 111, and the second clearance area 112 and the clearance notch 213 are located on the same side of the elastic member 3.

[0085] Combination Figure 9 To prevent the locking cover 2 from easily separating from the bracket body 1 after assembly, the distance from the surface of the first locking protrusion 211 away from the first base surface to the first base surface is greater than or equal to the distance from the axis of the elastic element 3 to the first base surface. This also leads to an increase in the required deformation when the elastic element 3 passes through the first locking protrusion 211, such as... Figure 11 As shown, the elastic element 3 deforms under force and enters the position of the second avoidance area 112, as... Figure 11 The dashed line indicates that when the elastic element 3 slides beyond the vertical surface 217, the elastic element 3 releases the stored force during deformation, at which point the elastic element 3... Figure 11 The area indicated by the dotted line returns to a vertical state and enters the first limit position 218, at which point the lock cover 2 is in the open state.

[0086] It is understandable that the second clearance area 112 provides a larger deformation space, which reduces the force required for assembly, i.e., when the elastic element 3 passes through the first locking protrusion 211, making assembly easier and thus improving assembly efficiency.

[0087] It should be noted that if Figure 7 As shown, the orthodontic self-ligating bracket 100 also includes a base plate 4. The base plate 4 is integrally connected to the side of the bracket body 1 away from the locking cover 2. The base plate 4 has a container cavity 41. The opening of the container cavity 41 faces away from the bracket body 1. The side of the base plate 4 has a discharge notch 42 that communicates with the container cavity 41.

[0088] It should be noted that during the process of fixing the orthodontic self-ligating bracket 100 to the tooth, an adhesive is applied to the base plate 4 so that the base plate 4 is in contact with the tooth surface. The adhesive cavity 41 can better retain the adhesive, making the fixation more convenient and easier for medical staff to operate.

[0089] In one embodiment, there is one discharge notch 42, and during clinical bonding, excess adhesive can overflow along the discharge notch 42.

[0090] Preferably, the opening of the drainage notch 42 faces the gums, making it convenient for clinicians to scrape.

[0091] It is understood that the dispensing gap 42 is not limited to one; multiple dispensing gaps 42 can also achieve the above-mentioned technical effects, which will not be elaborated here.

[0092] Optionally, such as Figure 7 As shown, the container cavity 41 is provided with a retaining protrusion 43.

[0093] In one embodiment, the retention protrusion 43 is disposed on the side of the container cavity 41 near the locking cap 2, and the dimension of the end of the retention protrusion 43 near the crown surface is larger than the dimension of the end away from the crown surface, such as... Figure 12 As shown, dimension L is larger than dimension L'. This design, combined with the adhesive, adds a layer of mechanical buckle, making the bond stronger, enhancing the bonding strength, and improving the installation strength.

[0094] Combination Figure 13 In another embodiment, the retaining protrusion 43 is disposed inside the solvent cavity 41, and the extension direction of the retaining protrusion 43 is parallel to the side of the solvent cavity 41 near the lock cover 2. A gap is left between the retaining protrusion 43 and the side of the solvent cavity 41 near the lock cover 2. Through this design and the combination with the adhesive, the connection between the base plate 4 and the teeth is more secure and less likely to fall off after installation.

[0095] Optionally, the mounting hole 11 has a through hole 44 on the side wall away from the locking cover 2. The through hole 44 passes through the base plate 4. The through hole 44 allows the adhesive to fix the elastic element 3 to the base plate 4 after the orthodontic self-ligating bracket 100 is installed on the teeth, thereby improving the strength of the orthodontic self-ligating bracket 100 after installation.

[0096] It should be noted that, as Figure 1 and Figure 2As shown, the bracket body 1 is provided with a first ligation area 13 and a second ligation area 14. The first ligation area 13 has an unlocking groove 209 on the side near the locking cover 2 and away from the base plate 4, allowing medical personnel to easily open the locking cover 2 with clinical tools. The second ligation area 14 has a first ligation wing 141 and a second ligation wing 142 on both sides for orthodontists to use when ligation is required during clinical operations. The second ligation area 14 has a first support surface 143 and a second support surface 144 on the side near the locking cover 2. The first support surface 143 is located on the side of the first ligation wing 141 away from the base plate 4, and the second support surface 144 is located on the side of the second ligation wing 142 away from the base plate 4. In one embodiment, the first support surface 143 and the second support surface 144 are located on the same plane. After assembly, the first support surface 143 and the second support surface 144 fit against the bottom surface 25 on the inner side of the locking cover 2, providing a guiding function.

[0097] In another embodiment, the first support surface 143 and the second support surface 144 are not located on the same plane.

[0098] It should be noted that a guide rail 15 is provided on the bracket body 1, the guide rail 15 is provided with a first rail support surface 151, and the lock cover 2 is provided with a first reverse rail surface 23 that cooperates with the first rail support surface 151. The above design provides a guiding function for the insertion of the lock cover 2 and restricts the movement of the lock cover 2.

[0099] It should be noted that the locking cover 2 has a front mounting surface 24 on the side near the first side wall 101. When the elastic member 3 is located at the first limiting position 218, the front mounting surface 24 is not in contact with the first side wall 101. When the elastic member 3 is located at the second limiting position 219, the front mounting surface 24 is in contact with the first side wall 101, and at this time the groove 10 is closed by the locking cover 2.

[0100] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An orthodontic self-ligating bracket, characterized in that, include: The bracket body is provided with mounting holes; A locking cover is slidably inserted into the bracket body. The inner side of the locking cover is provided with a slide rail. The slide rail opens towards the mounting hole and also opens along the insertion direction of the locking cover. The opening of the slide rail towards the mounting hole is opposite to the opening of the mounting hole. An elastic element is provided in the mounting hole, the elastic element extends out of the bracket body, and cooperates with the slide rail provided in the lock cover; The slide rail has a first locking protrusion and a second locking protrusion spaced apart on its side. The slide rail has an avoidance notch on the side opposite to the first locking protrusion. The first locking protrusion and the second locking protrusion restrict the portion of the elastic element that extends into the slide rail.

2. The orthodontic self-ligating bracket as described in claim 1, characterized in that, The opening of the slide along the insertion direction of the lock cover is defined as the slide entrance; The first locking protrusion includes an abutting surface near the sliding entrance, the abutting surface facing the clearance notch.

3. The orthodontic self-ligating bracket as described in claim 2, characterized in that, The side of the slide connected to the first card slot protrusion is defined as the first base surface; The distance from the surface of the first locking protrusion away from the first base surface to the first base surface is greater than or equal to the distance from the axis of the elastic element to the first base surface.

4. The orthodontic self-ligating bracket as described in claim 3, characterized in that, The first locking protrusion also includes a limiting surface, which is opposite to the contact surface. The limiting surface is perpendicular to the first base surface or the inclination direction of the limiting surface is consistent with the inclination direction of the contact surface.

5. The orthodontic self-ligating bracket as described in claim 4, characterized in that, The distance from the side of the clearance notch closest to the first locking protrusion to the first locking protrusion is greater than the maximum inner diameter of the elastic element cross-section.

6. The orthodontic self-ligating bracket as described in any one of claims 1 to 5, characterized in that, The main body of the bracket is provided with a recessed groove, the opening of the recessed groove faces the lock cover, the length direction of the recessed groove is the same as the insertion direction of the lock cover, the side wall of the recessed groove away from the lock cover is provided with the placement hole, and the opening of the placement hole is provided with a first avoidance area.

7. The orthodontic self-ligating bracket as described in claim 6, characterized in that, The mounting hole is connected to a second clearance area, which is connected to the first clearance area. The second clearance area and the clearance notch are located on the same side of the elastic member.

8. The orthodontic self-ligating bracket as described in claim 2, characterized in that, The orthodontic self-ligating bracket also includes a base plate, which is integrally connected to the bracket body on the side away from the locking cover. The base plate has a cavity for dispensing the dispensing agent, with the opening of the cavity facing away from the bracket body. The side of the base plate has a discharge notch that communicates with the cavity for dispensing the dispensing agent.

9. The orthodontic self-ligating bracket as described in claim 8, characterized in that, The container cavity is provided with a retaining protrusion.

10. The orthodontic self-ligating bracket as described in any one of claims 8 to 9, characterized in that, The mounting hole has a through hole on the side wall away from the lock cover, and the through hole passes through the base plate.

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