A ceramic self-ligating bracket for orthodontics

Abstract

An embodiment of the present invention provides a ceramic self-ligating bracket for orthodontics. It includes a self-ligating bracket and an oral support device, the self-ligating bracket includes a body and a locking plate, the body is provided with a hard buckle structure, the locking plate is connected to an elastic deformation buckle structure, and the locking plate is opened or closed with the body through the cooperation of the elastic deformation buckle structure and the hard buckle structure. An embodiment of the present invention also provides a processing method for a ceramic self-ligating bracket for orthodontics. The present invention provides a ceramic self-ligating bracket for orthodontics, which saves 25% of the volume compared with traditional tooth brackets; the hidden mechanism has no dead angle when cleaning; the curved surface shape can improve the comfort of patients, and the self-ligating mechanism is less painful for patients during correction; the operation is convenient for clinical physicians and shortens the correction time.

Description

Technical Field

[0001] The invention relates to the technical field of orthodontic products, and in particular to a ceramic self-ligating bracket for orthodontics. Background Art

[0002] Brackets are basic components of orthodontic treatment used to improve the patient's bite. During the treatment process, the doctor fixes the brackets on the patient's teeth and places the archwires in the bracket grooves. The archwires apply a corrective force to force the teeth to move to the correct position. However, patients who have experienced the use of metal brackets feel embarrassed because of the visibility of the metal, which is unpleasant for patients who pay attention to aesthetics. Therefore, some people in the prior art have begun to use transparent or translucent materials to make traditional non-self-ligating brackets, which greatly improves the aesthetic problems of non-self-ligating brackets. However, in clinical applications, it can be found that the application of ceramic non-self-ligating brackets is very easy to break, and the breakage rate is basically around 25%, so the scope of use is not very large.

[0003] The aesthetics of self-ligating brackets is still a problem. The self-ligating components of self-ligating brackets currently on the market are all made of metal, which also has the problem of being unsightly.

[0004] Of course, in the prior art, there are also a few self-ligating brackets made of ceramics on the market. They are made by injecting high-purity alumina powder into the desired appearance, and then using vacuum sintering to achieve high-density, low-porosity and high-toughness ceramic components. From the current process technology, to produce a transparent ceramic component, its grain size will be greater than 50 microns. Due to the excessive grain size, the material's bending strength is less than 300MPa. Therefore, the ceramic self-ligating brackets in the prior art increase the product size to make up for the lack of strength, resulting in reduced comfort for patients during the correction process. In addition, the current ceramic self-ligating bracket assembly includes a locking plate and a body. The body is provided with two left-right symmetrical tracks, and the locking plate is provided with two protrusions symmetrical to the left and right tracks. The two protrusions cooperate with the two tracks. Such a structure has many problems, such as poor sliding, or it cannot be fixed and is easy to loosen and cannot achieve effective traction.

[0005] Therefore, the existing technology has yet to be developed. Summary of the invention

[0006] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a ceramic self-ligating bracket for orthodontics, aiming to solve the problems of insufficient wearing comfort, poor sliding of locking plates or insufficient fixation in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a ceramic self-ligating bracket for orthodontics, comprising a self-ligating bracket and an oral support device, the oral support device comprising a fixed base frame, a movable support frame and a liquid-absorbing syringe, a distribution pipe is evenly laid on the inner wall of the top of the fixed base frame, the two ends of the distribution pipe are respectively fixedly connected to a saliva hose provided at the middle position of the inner wall of the fixed base frame, and a liquid-absorbing hose is fixedly connected to the distribution pipe, and the other end of the liquid-absorbing hose is fixedly connected to the liquid-absorbing syringe, and a piston is installed inside the liquid-absorbing syringe through a pull rod, and a storage groove is provided on the top of the fixed base frame, and a second groove is provided at the bottom at the middle position of the storage groove, and the bottom ends of the storage grooves on both sides of the second groove are opened. A first groove is provided, and an adjusting sleeve is hingedly connected inside the first groove, an adjusting threaded column is movably installed at one end of the adjusting sleeve, and a support rod is provided for the adjusting threaded column, a movable support frame is hingedly connected to the top of the storage groove, a third groove is provided at the position of the bottom of the movable support frame corresponding to the first groove, the inside of the third groove is hingedly provided with a supporting sleeve, and second limiting protrusions are fixed on the inner walls of both sides of the third groove, the inside of the supporting sleeve is fixedly connected with a supporting plate through a buffer spring, an adjusting slide groove is provided at the top of the bottom of the movable support frame, a slider is movably installed inside the adjusting slide groove, the bottom end of the slider extends to the outside of the adjusting slide groove and is fixed with a ball head, a movable sleeve is sleeved on the ball head, and a lighting lamp is installed at the bottom of the movable sleeve;

[0008] The self-ligating bracket includes a body and a locking plate, the body is provided with a hard buckle structure, the locking plate is connected with an elastically deformable buckle structure, and the locking plate is opened or closed with the body through the cooperation of the elastically deformable buckle structure and the hard buckle structure. Further, the hard buckle structure is made of stainless steel, and the cross-section of the hard buckle structure can be circular, elliptical, semicircular, annular or semicircular, and the hard buckle structure is fixedly connected to the body.

[0009] Furthermore, the hard buckle structure is made of stainless steel, and the cross-section of the hard buckle structure can be circular, elliptical, semicircular, annular or semi-annular, and the hard buckle structure is fixedly connected to the body.

[0010] Furthermore, a through hole is provided at one end of the adjusting sleeve, and internal threads are evenly provided on the inner wall of the through hole. The adjusting threaded column is movably installed inside the through hole at one end of the adjusting sleeve through threads.

[0011] Furthermore, the locking plate performs an opening or closing action with the main body through the cooperation of an elastic deformation buckle structure and a hard buckle structure, which means that when the locking plate and the main body are opened or closed, the elastic deformation buckle structure connected to the locking plate and the hard buckle structure installed on the main body are in an circumscribed relationship, and the line connecting the centers of the two circles forms an angle of 15 to 45 degrees with the horizontal line, or the line connecting the centers of the two circles forms an angle of -15 to -45 degrees with the horizontal line.

[0012] Furthermore, the body is an integrally molded product formed by powder injection, the height of the body is 2.4 mm, the length is 3.7 mm, and the width is 2.8 mm. The product grain size of the body is about 5 um, and the three-point bending strength is 600 MPa.

[0013] Furthermore, a first limiting protrusion and a second limiting protrusion are respectively arranged on the inner walls on both sides of the first groove and the third groove, and the distance between the two first limiting protrusions is smaller than the diameter of the support rod. At the same time, the depth of the first groove is greater than the diameter of the support rod, and the distance between the two second limiting protrusions is smaller than the diameter of the support sleeve.

[0014] Furthermore, a self-adhesive layer is provided at the bottom of the body, and a disposable dustproof sticker is provided outside the self-adhesive layer.

[0015] Furthermore, the movable support frame and the fixed base frame are both in a "U"-shaped structure, and the outer contour of the movable support frame is smaller than the inner contour of the storage groove, and the thickness of the movable support frame is equal to the depth of the storage groove; the support rod and the adjusting threaded column are in an integrated structure, the support rod is in a hexagonal prism structure, and the diameter of the support rod is smaller than the inner diameter of the support sleeve, the inner contour of the adjusting slot is larger than the outer contour of the slider, and the slider forms a sliding structure inside the adjusting slot.

[0016] In order to achieve the above object, the present invention adopts the following technical scheme: a method for processing a ceramic self-ligating bracket for orthodontics, comprising the following steps:

[0017] A. Batching: Raw materials include ceramic powder and polymer materials. Raw materials are weighed according to product and material numbers, and the weighed mixture is put into the material warehouse;

[0018] B. Internal Mixing: Use a fully automatic computer-controlled internal mixer to take out the raw materials from the material warehouse, pour the prepared raw materials into the internal mixing chamber for internal mixing. This is high-pressure closed mixing. The raw materials are extruded and internally mixed by spiral meshing double rollers in the high-pressure closed chamber to make all kinds of materials fully mixed and uniform.

[0019] C. Crushing: After the raw materials are fully mixed, they are physically crushed, first into small pieces, then into small particles, to form ceramic powder;

[0020] D. Using powder injection molding (CIM), ceramic powder and binder are mixed into a mixed material, then heated, and then the heated mixed material is injected into the mold through an injection molding machine to form a green embryo;

[0021] E. Degreasing, removing the binder mixed in step D;

[0022] F. Sintering: After sintering by HIP hot isostatic sintering method, a high-density and high-strength semi-product with a density of more than 95% can be obtained. The sintering temperature is 1000~1600℃;

[0023] G. The sintered semi-finished product has an uneven surface, which will affect the product performance and appearance. The surface is polished and cleaned by drum grinding;

[0024] H. Finished product.

[0025] Furthermore, the step D also includes using a micro mold hot glue channel to inject glue and cast the finished product.

[0026] Beneficial effects: The present invention provides a ceramic self-ligating bracket for orthodontics, which saves 25% of the volume compared with traditional tooth brackets; the hidden mechanism has no dead angle when cleaning; the curved surface shape can improve the comfort of patients, and the self-ligating mechanism is less painful for patients during correction; it is convenient for clinical physicians to operate and shortens the correction time. High-purity biomedical ceramic materials are used, and the CIM process is used to produce high-precision and complex-shaped micro-components. The minimum wall thickness can be less than 1mm. After the improved design, the product of this project has an overall height of about 2.4mm, which is easy to place and has smooth edges and corners, so that patients feel more comfortable. The cost of mold development is reduced.

[0027] Improved production quality stability: Using hot glue to directly pour finished products can completely avoid the generation of sprue material and the pollution of recycled materials. The weight ratio of sprue material to finished product will be reduced from the original 4:1 to 0:1. Without the generation of sprue material, there will be no pollution problem. Since the injection is done with virgin material, the stability of injection quality will be improved, thereby reducing production costs.

[0028] Ultra-high vacuum sintering technology is used to produce transparent ceramics. Preliminary test results show that the hot isostatic pressing process can effectively enhance the mechanical strength of the product from the original 300~350MPa to 600MPa, and the grain size is reduced from 40um to 5um.

[0029] The movable support frame is hingedly connected to the top of the storage groove opened on the top of the fixed base frame, so that the movable support frame can be rotated and unfolded with the rotating shaft at the hinge as the center, and the support sleeve hinged in the third groove at the bottom of the movable support frame cooperates with the support rod to support the movable support frame. Since the adjustment threaded column at the bottom end of the support rod is installed with the inner side of the through hole at the top end of the adjustment sleeve through the thread, it is convenient to adjust the length of the support rod under the action of the thread, thereby realizing the adjustment of the opening angle of the movable support frame, which is convenient for adjustment according to the patient's oral cavity, is easy to use, and is conducive to reducing the difficulty of the doctor's work. In addition, the movable support frame can be stored in the storage slot when not in use, which is convenient for storage.

[0030] By sleeve-fitting a movable sleeve on the ball head at the bottom end of the slider, a lighting lamp is arranged on the movable sleeve, so that the angle of the lighting lamp is convenient to adjust, and the slider is slidably installed inside the adjustment slide slot, so that according to the needs of the corrected tooth position side, the slider drives the lighting lamp to move the adjustment position inside the adjustment slide slot, so that the lighting angle is convenient to adjust and the correction efficiency is improved;

[0031] A saliva hose is arranged on the inner wall of the fixed base frame to connect with the distribution tube, and the distribution tube is connected with the suction syringe through the suction hose. When the pull rod drives the piston to be pulled outward, negative pressure is formed inside the suction syringe. Under the action of the pressure difference, the saliva inside the oral cavity is extracted through the saliva hose, the distribution tube and the suction hose. In addition, a buffer spring is used to fix the connection support plate inside the support sleeve. During the process of the support rod being inserted into the support sleeve for support, the movable support frame has a certain movable space, which is convenient for the patient to move the facial muscles during the long period of opening the mouth, avoid muscle soreness, and improve the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The figure is a schematic structural diagram of a ceramic self-ligating bracket for orthodontics according to an embodiment of the present invention.

[0033] Figure 2 Schematic diagram of the partial structure of a ceramic self-ligating bracket for orthodontics according to an embodiment of the present invention.

[0034] Figure 3 It is a schematic diagram of the structure of the present invention;

[0035] Figure 4 It is a side view structural schematic diagram of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the lighting lamp adjustment mechanism of the present invention;

[0037] Figure 6 It is a schematic diagram of the internal structure of the support sleeve of the present invention.

[0038] In the figure: 1. Fixed base frame; 101. Storage slot; 102. First groove; 1021. First limiting protrusion; 103. Second groove; 2. Pipette syringe; 201. Piston; 202. Pull rod; 3. Pipette hose; 4. Adjustment sleeve; 401. Adjustment threaded column; 402. Support rod; 5. Support sleeve; 501. Buffer spring; 502. Support plate; 6. Movable support frame; 601. Adjustment slide groove; 602. Third groove; 603. Second limiting protrusion; 7. Distribution pipe; 8. Saliva hose; 9. Sliding block; 901. Ball head; 10. Lighting lamp; 1001. Movable sleeve. DETAILED DESCRIPTION

[0039] The present invention provides a ceramic self-ligating bracket for orthodontics and a processing method thereof. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Figure 1-6 A ceramic self-ligating bracket for orthodontics provided in an embodiment of the present invention comprises a self-ligating bracket and a mouth support device. During orthodontics, the two can be used simultaneously, which is more convenient.

[0046] The main body is provided with a hard buckle structure, and the locking piece is connected with an elastically deformable buckle structure. The locking piece is opened or closed with the main body through the cooperation of the elastically deformable buckle structure and the hard buckle structure.

[0047] The hard buckle structure is made of stainless steel, and the cross-section of the hard buckle structure can be circular, elliptical, semicircular, annular or semi-annular, and the hard buckle structure is fixedly connected to the body.

[0048] The locking plate performs an opening or closing action with the main body through the cooperation of the elastic deformation buckle structure and the hard buckle structure, which means that when the locking plate and the main body are opened or closed, the elastic deformation buckle structure connected to the locking plate and the hard buckle structure installed on the main body form an external circle relationship, and the line connecting the centers of the two circles forms an angle of 15 to 45 degrees with the horizontal line, or the line connecting the centers of the two circles forms an angle of -15 to -45 degrees with the horizontal line.

[0049] The main body is an integrally formed product formed by powder injection, and the height of the main body is 2.4 mm, the length is 3.7 mm, and the width is 2.8 mm. The product grain size of the main body is about 5 um, and the three-point bending strength is 600 MPa.

[0050] The elastic deformation buckle structure should satisfy the following elastic coefficient calculation method:

[0051] The bottom of the body is provided with a self-adhesive layer, and a disposable dustproof sticker is provided outside the self-adhesive layer. This further facilitates clinical operation, and the sticker can be directly torn off without the need to prepare separate stickers.

[0052] In order to achieve the above object, the present invention adopts the following technical scheme: a method for processing a ceramic self-ligating bracket for orthodontics, comprising the following steps:

[0053] A. Batching: Raw materials include ceramic powder and polymer materials. Raw materials are weighed according to product and material numbers, and the weighed mixture is put into the material warehouse;

[0054] B. Internal Mixing: Use a fully automatic computer-controlled internal mixer to take out the raw materials from the material warehouse, pour the prepared raw materials into the internal mixing chamber for internal mixing. This is high-pressure closed mixing. The raw materials are extruded and internally mixed by spiral meshing double rollers in the high-pressure closed chamber to make all kinds of materials fully mixed and uniform.

[0055] C. Crushing: After the raw materials are fully mixed, they are physically crushed, first into small pieces, then into small particles, to form ceramic powder;

[0056] D. Using powder injection molding (CIM), ceramic powder and binder are mixed into a mixed material, then heated, and then the heated mixed material is injected into the mold through an injection molding machine to form a green embryo;

[0057] E. Degreasing, removing the binder mixed in step D;

[0058] F. Sintering: After sintering by HIP hot isostatic sintering method, a high-density and high-strength semi-product with a density of more than 95% can be obtained. The sintering temperature is 1000~1600℃;

[0059] G. The sintered semi-finished product has an uneven surface, which will affect the product performance and appearance. The surface is polished and cleaned by drum grinding;

[0060] H. Finished product.

[0061] The step D also includes using a micro mold hot glue channel to inject glue and cast the finished product.

[0062] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0063] See also Figure 1-4 , an embodiment of the present invention: a stable oral support device for correcting teeth, comprising a fixed base frame 1, a movable support frame 6 and a liquid suction syringe 2, a distribution pipe 7 is evenly laid on the inner side wall of the top of the fixed base frame 1, and the two ends of the distribution pipe 7 are respectively fixedly connected to a saliva hose 8 provided at the middle position of the inner side wall of the fixed base frame 1, and a liquid suction hose 3 is fixedly connected to the distribution pipe 7, and the other end of the liquid suction hose 3 is fixedly connected to the liquid suction syringe 2, and a piston 201 is installed inside the liquid suction syringe 2 through a pull rod 202, a storage groove 101 is opened on the top of the fixed base frame 1, a second groove 103 is set at the bottom of the middle position of the storage groove 101, and the bottom ends of the storage grooves 101 on both sides of the second groove 103 are opened with first grooves 102, and the inside of the first groove 102 is hinged with an adjustment sleeve 4, and the adjustment sleeve 4 is hinged. An adjusting threaded column 401 is movably installed at one end of the section sleeve 4, and a support rod 402 is provided on the adjusting threaded column 401. A movable support frame 6 is hingedly connected to the top of the storage groove 101. A third groove 602 is provided at the position of the bottom of the movable support frame 6 corresponding to the first groove 102. A support sleeve 5 is hingedly connected inside the third groove 602, and a second limiting protrusion 603 is fixed on the inner walls of both sides of the third groove 602. The inside of the support sleeve 5 is fixedly connected to the support plate 502 through a buffer spring 501. An adjusting slide groove 601 is provided at the top of the bottom of the movable support frame 6. A slider 9 is movably installed inside the adjusting slide groove 601. The bottom end of the slider 9 extends to the outside of the adjusting slide groove 601 and is fixed with a ball head 901. A movable sleeve 1001 is sleeved on the ball head 901, and an illuminating lamp 10 is installed at the bottom of the movable sleeve 1001.

[0064] One end of the adjusting sleeve 4 is provided with a through hole, and the inner side wall of the through hole is evenly provided with internal threads. The adjusting threaded column 401 is movably installed inside the through hole at one end of the adjusting sleeve 4 through the thread. When the adjusting threaded column 401 rotates, the length of the adjusting threaded column 401 is adjustable under the interaction of the threads, thereby adjusting the angle between the fixed base frame 1 and the movable support frame 6;

[0065] A first limiting protrusion 1021 and a second limiting protrusion 603 are respectively provided on the inner walls on both sides of the first groove 102 and the third groove 602, and the distance between the two first limiting protrusions 1021 is smaller than the diameter of the support rod 402, and the depth of the first groove 102 is greater than the diameter of the support rod 402. When the support rod 402 is received in the first groove 102, the two first limiting protrusions 1021 effectively clamp the support rod 402 to limit the support rod 402. At the same time, when the support rod 402 is received in the first groove 102, the top of the support rod 402 and the top of the first groove 102 are located in the same horizontal plane, which will not affect the storage of the movable support frame 6. The distance between the two second limiting protrusions 603 is smaller than the diameter of the support sleeve 5. When the support sleeve 5 is received in the third groove 602, the two second limiting protrusions 603 effectively clamp the support sleeve 5 to fix the position of the support sleeve 5;

[0066] The movable support frame 6 and the fixed base frame 1 are both in a "U"-shaped structure, and the outer contour of the movable support frame 6 is smaller than the inner contour of the storage groove 101. At the same time, the thickness of the movable support frame 6 is equal to the depth of the storage groove 101. When the movable support frame 6 is folded, the movable support frame 6 is well stored in the storage groove 101, which reduces the volume of the device and facilitates storage;

[0067] The support rod 402 and the adjusting threaded column 401 are in an integrated structure. The support rod 402 is in a hexagonal prism structure, and the diameter of the support rod 402 is smaller than the inner diameter of the support sleeve 5. The support rod 402 in the hexagonal prism structure is easy to rotate, avoiding slipping during the rotation process, and is easy to insert the support rod 402 into the support sleeve 5.

[0068] The inner contour of the adjustment groove 601 is larger than the outer contour of the slider 9. At the same time, the slider 9 forms a sliding structure inside the adjustment groove 601. The slider 9 drives the lighting lamp 10 to move the adjustment position inside the adjustment groove 601, which facilitates the use of lighting for tooth correction and improves the correction efficiency.

[0069] Working principle: When in use, the movable support frame 6 is rotated and unfolded around the hinge with the storage groove 101, the support sleeve 5 is rotated and unfolded inside the third groove 602, and the adjustment sleeve 4 is rotated and unfolded inside the first groove 102, so that the top end of the support rod 402 is inserted into the support sleeve 5 to support the movable support frame 6, and then the whole device is placed in the patient's oral cavity. According to the needs of the patient's oral cavity, the support rod 402 is rotated, and under the action of the thread, the threaded column 401 is adjusted to move up and down inside the adjustment sleeve 4 to adjust the height to meet the patient's oral support needs, and then according to the correction of teeth. When the position is needed, the slider 9 drives the lighting lamp 10 to move the adjustment position inside the adjustment slot 601, and the lighting angle of the lighting lamp 10 is adjusted by adjusting the angle between the movable sleeve 1001 and the ball head 901, so as to facilitate the use of lighting for tooth correction and improve the correction efficiency. When the patient opens his mouth for a long time and saliva is generated inside the oral cavity, the pull rod 202 is pulled outward, and the pull rod 202 drives the piston 201 to move outward, so that negative pressure is formed inside the aspiration syringe 2. Under the action of the pressure difference, the saliva inside the oral cavity is extracted into the interior of the aspiration syringe 2 through the saliva hose 8, the distribution tube 7, and the aspiration hose 3, thereby improving the patient's comfort.

[0070] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A ceramic self-ligating bracket for orthodontics, comprising a self-ligating bracket and a mouth support device, characterized in that: The oral support device comprises a fixed base frame, a movable support frame and a liquid-absorbing syringe. A distribution pipe is evenly laid on the inner side wall of the top of the fixed base frame. Both ends of the distribution pipe are fixedly connected to a saliva hose provided at the middle position of the inner side wall of the fixed base frame, and a liquid-absorbing hose is fixedly connected to the distribution pipe. The other end of the liquid-absorbing hose is fixedly connected to the liquid-absorbing syringe. At the same time, a piston is installed inside the liquid-absorbing syringe through a pull rod. A storage groove is provided on the top of the fixed base frame, and a second groove is provided at the bottom of the middle position of the storage groove. The bottom ends of the storage grooves on both sides of the second groove are both provided with first grooves, and the inside of the first groove is hinged with an adjusting sleeve. An adjusting threaded column is movably installed at one end of the adjusting sleeve, and a support rod is provided for the adjusting threaded column, a movable support frame is hingedly connected to the top of the storage groove, a third groove is provided at the position of the bottom of the movable support frame corresponding to the first groove, a support sleeve is hingedly connected inside the third groove, and a second limiting protrusion is fixed on the inner walls of both sides of the third groove, a support plate is fixedly connected to the inside of the support sleeve through a buffer spring, an adjusting slide groove is provided at the top of the bottom of the movable support frame, a slider is movably installed inside the adjusting slide groove, the bottom end of the slider extends to the outside of the adjusting slide groove and is fixed with a ball head, a movable sleeve is sleeved on the ball head, and a lighting lamp is installed at the bottom of the movable sleeve; The self-locking bracket comprises a body and a locking plate, the body is provided with a hard buckle structure, the locking plate is connected with an elastically deformable buckle structure, and the locking plate performs an opening or closing action with the body through the cooperation of the elastically deformable buckle structure and the hard buckle structure; The locking piece performs an opening or closing action with the body through the cooperation of the elastic deformation buckle structure and the hard buckle structure, which means that when the locking piece and the body are opened or closed, the elastic deformation buckle structure connected to the locking piece and the hard buckle structure installed on the body form a circumscribed relationship, and the line where the centers of the two circles are connected to the horizontal line forms an angle of 15 to 45 degrees, or the line where the centers of the two circles are connected to the horizontal line forms an angle of -15 to -45 degrees; The first and second limiting protrusions are respectively arranged on the inner walls on both sides of the first groove and the third groove, and the distance between the two first limiting protrusions is smaller than the diameter of the support rod. At the same time, the depth of the first groove is greater than the diameter of the support rod, and the distance between the two second limiting protrusions is smaller than the diameter of the support sleeve.

2. A ceramic self-ligating bracket for orthodontics according to claim 1, characterized in that: The hard buckle structure is made of stainless steel, and the cross-section of the hard buckle structure can be circular, elliptical, semicircular, annular or semi-annular, and the hard buckle structure is fixedly connected to the body.

3. The ceramic self-ligating bracket for orthodontics according to claim 1, characterized in that: One end of the adjusting sleeve is provided with a through hole, the inner side wall of the through hole is evenly provided with internal threads, and the adjusting threaded column is movably installed inside the through hole at one end of the adjusting sleeve through threads.

4. The ceramic self-ligating bracket for orthodontics according to claim 1, characterized in that: The main body is an integrally formed product formed by powder injection, and the height of the main body is 2.4 mm, the length is 3.7 mm, and the width is 2.8 mm. The product grain size of the main body is 5 um, and the three-point bending strength is 600 MPa.

5. The ceramic self-ligating bracket for orthodontics according to claim 1, characterized in that: A self-adhesive layer is arranged at the bottom of the body, and a disposable dustproof sticker is arranged outside the self-adhesive layer.

6. The ceramic self-ligating bracket for orthodontics according to claim 1, characterized in that: The movable support frame and the fixed base frame are both in a "U"-shaped structure, and the outer contour of the movable support frame is smaller than the inner contour of the storage groove, and the thickness of the movable support frame is equal to the depth of the storage groove; the support rod and the adjusting threaded column are in an integrated structure, the support rod is in a hexagonal prism structure, and the diameter of the support rod is smaller than the inner diameter of the supporting sleeve, the inner contour of the adjusting slot is larger than the outer contour of the slider, and the slider forms a sliding structure inside the adjusting slot.

Images