CN217186513U - Orthodontic appliance and orthodontic system - Google Patents

Abstract

The utility model relates to an orthodontic appliance and an orthodontic system, the orthodontic appliance comprises a main body part and a functional component, the main body part is provided with a groove, the functional component is arranged on the main body part, the functional component can move or deform or rotate relative to the main body part so as to be switched between a first working state and a second working state, under the condition of the first working state, the first end of the functional component protrudes out of the main body part to realize a traction function, the second end of the functional component does not enter the groove and can not realize a locking function, and the functional component only realizes the traction function but can not lock; in the second working state, one of the first end or the second end of the functional component enters the groove to realize the locking function, the first end and the second end of the functional component cannot realize the traction function, and the functional component only realizes the locking function but cannot realize the traction function. The orthodontic appliance can not be locked by the traction function or by the locking function, and can be suitable for more application scenes.

Description

Orthodontic appliance and orthodontic system

Technical Field

The utility model relates to an just abnormal technical field especially relates to an just abnormal utensil and just abnormal system.

Background

The orthodontic appliance includes orthodontic bracket and buccal tube, is one important part of fixing and correcting technology, and is one appliance for correcting tooth arrangement and malformation.

The applicant filed an invention application on 29.1.2015, named as a traction bracket and orthodontic system and an orthodontic method thereof, with the patent number of 201510046931. X.

This patent discloses a draw and hold in palm groove, has seted up the locking traction hole on the main part that draws the support groove. When the locking bolt is arranged in the locking traction hole, one end of the locking bolt protrudes out of the main body part for traction, and the other end of the locking bolt extends into the locking traction hole and is tightly abutted against the arch wire in the groove, so that the arch wire is locked. When the traction bolt is arranged in the locking traction hole, one end of the traction bolt protrudes out of the main body part for traction, and the other end of the traction bolt extends into the locking traction hole and keeps a certain distance with the arch wire groove (the traction bolt can not abut against the arch wire). Therefore, the traction bracket has a traction function regardless of the use of the locking bolt or the traction bolt.

However, the traction bracket can not solve the problem that only locking is needed and traction is not needed, and can not be suitable for more application occasions.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide an orthodontic appliance and an orthodontic system that can not be locked by either having a traction function or a locking function.

An orthodontic appliance, the orthodontic appliance includes main part and functional unit, the slot has been seted up on the main part, the functional unit sets up in on the main part, the functional unit can move or can deform or can rotate for the main part can switch between first operating condition and second operating condition:

under the condition of a first working state, the first end of the functional component protrudes out of the main body part to realize a traction function, and the second end of the functional component does not enter the groove and cannot realize a locking function;

in the second working state, one of the first end or the second end of the functional component enters the groove to realize the locking function, and the first end and the second end of the functional component cannot realize the traction function.

In one embodiment, the main body portion is provided with an open cavity communicated with the groove, the functional component is arranged in the open cavity in a penetrating manner, and the functional component can move relative to the main body portion to realize switching between a first working state and a second working state.

In one embodiment, the locking device further comprises an elastic sheet embedded on the side wall of the open type cavity, the functional component is connected with the elastic sheet, and the first end of the functional component extends out of the main body part to achieve a traction function or the second end of the functional component extends into the groove to achieve a locking function through deformation of the elastic sheet.

In one embodiment, the pressing part is arranged at the second end of the functional part and is located in the open cavity, the groove or both the open cavity and the groove.

In one embodiment, the functional component is arc-shaped and has elastic performance, the second end of the functional component is fixedly arranged on the main body part, and under the condition of a first working state, the first end of the functional component extends out of the main body part to realize a traction function; under the condition of a second working state, the first end of the functional component extends into the groove to realize the locking function.

In one embodiment, the first end of the functional component is provided with a limit stop, the cross-sectional area of which is greater than the cross-sectional area of the end of the first end.

In one embodiment, the second end of the functional component is rotatably arranged on the main body part, and under the condition of a first working state, the first end of the functional component is rotated to a position extending out of the main body part to realize a traction function; under the condition of a second working state, the first end of the functional component extends into the groove to realize the locking function.

In one embodiment, the second end of the functional component is rotatably disposed on the main body portion by an adjustment screw having an engagement bit disposed thereon.

In one embodiment, the first end of the functional component is provided with a limit stop, the cross-sectional area of which is greater than the cross-sectional area of the end of the first end.

The orthodontic appliance has at least the following advantages:

the orthodontic appliance comprises a main body part and a functional component, wherein the functional component is movable or deformable or rotatable relative to the main body part so as to be switched between a first working state and a second working state, under the condition of the first working state, a first end of the functional component protrudes out of the main body part to realize a traction function, and a second end of the functional component does not enter the groove and cannot realize a locking function, so that the functional component only realizes the traction function but cannot be locked; in the second working state, one of the first end or the second end of the functional component enters the groove to realize the locking function, and the first end and the second end of the functional component can not realize the traction function, so that the functional component only realizes the locking function but can not realize the traction. Therefore, the orthodontic appliance can not be locked by the traction function or can not be pulled by the locking function, and can be suitable for more application scenes.

An orthodontic system comprising an archwire and at least one orthodontic appliance as described in any one of the above, the archwire for receipt in a slot of the orthodontic appliance.

The orthodontic system is applied to the orthodontic appliance, so that the orthodontic system can realize that the traction function cannot be locked or the locking function cannot be used for traction, and can adapt to more application scenes.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a side view of an orthodontic appliance in a first embodiment, with the orthodontic appliance in a first operative configuration;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is another cross-sectional view of FIG. 1;

fig. 4 is a side view of the orthodontic appliance of the first embodiment, with the orthodontic appliance in a second operational configuration;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is another cross-sectional view of FIG. 4;

fig. 7 is a top view of the orthodontic appliance of the second embodiment in a first operative configuration;

FIG. 8 is a side view of FIG. 7;

fig. 9 is a top view of the orthodontic appliance of the second embodiment in a second operational configuration;

FIG. 10 is a side view of FIG. 9;

fig. 11 is a top view of an orthodontic appliance in a third embodiment, the orthodontic appliance in a first operative configuration;

FIG. 12 is a side view of FIG. 11;

fig. 13 is a side view of an orthodontic appliance in a third embodiment, with the orthodontic appliance in a second operational configuration.

Description of reference numerals:

100. orthodontic brackets; 110. a main body portion; 120. a base plate; 130. a lid portion; 140. a functional component; 111. a groove; 112. a first working wing; 113. a second working wing; 141. a first end; 142. a second end; 114. an open cavity; 150. a spring plate; 143. a through hole; 160. a pressing member;

200. orthodontic brackets; 210. a main body portion; 220. a base plate; 230. a cap portion; 240. a functional component; 211. a trench; 201. an arch wire; 212. a first working wing; 213. a second working wing; 241. a first end; 242. a second end; 243. a limit locking block;

300. orthodontic brackets; 310. a main body portion; 320. a base plate; 330. a lid portion; 340. a functional component; 311. a groove; 301. an arch wire; 312. a first working wing; 313. a second working wing; 341. a first end; 342. a second end; 350. an adjusting screw; 343. and a limit locking block.

Detailed Description

It should be noted that the orthodontic appliances mentioned in the present invention refer to orthodontic brackets or buccal tubes, or other appliances with similar functions and similar structures.

Unless otherwise indicated, in the following structural description, reference frames to maxillary teeth are required to describe embodiments of the invention, and thus, as used herein, terms such as labial, lingual, mesial, distal, occlusal, gingival are used to describe orthodontic appliances with respect to the selected reference frame. However, embodiments of the present invention are not limited to the chosen frame of reference and the described terminology, as orthodontic appliances may be used with other teeth and other orientations within the oral cavity.

For example, brackets or buccal tubes may also be coupled to the lingual surfaces of the teeth and fall within the scope of the invention. Those skilled in the art will appreciate that when there are variations in the reference frame, the descriptive terms used herein may not be directly applicable. However, embodiments of the invention are intended to be independent of position and orientation within the oral cavity and the relative terms used to describe the embodiments are merely intended to provide an unambiguous explanation of the embodiments in the drawings. Likewise, the relative terms labial, lingual, mesial, distal, occlusal and gingival are in no way intended to limit the invention to a particular position or orientation.

The relative terms labial, lingual, mesial, distal, occlusal and gingival are the industry terms for orthodontic treatment. Taking a certain tooth of the upper jaw as an example, the surface of the tooth can be roughly divided into six surfaces. The surface of the tooth that is occluded with the mandibular tooth is the occlusal surface; the surface of the tooth that is in contact with the gingival tissue to which it is attached is the gingival surface; the occlusal surface is opposite to the gingival surface, and the direction formed by the occlusal surface and the gingival surface is also called the gingival-jaw direction. The face of the tooth facing the lip is the labial face, the face of the tooth facing the tongue is the lingual face, the labial face and the lingual face are opposed to each other, and the direction formed by the labial face and the lingual face is also referred to as the labial-lingual direction. The two surfaces of the tooth that contact the adjacent teeth are the mesial and distal surfaces, respectively, and the difference is the distance from the middle, and the direction formed by the two is also called the mesial-distal direction, or the mesial-distal direction.

And in the description of the direction, such as the labial and lingual directions, it is commonly referred to as bi-directional. However, the distinction is made that the term "lip-tongue direction" refers to a single direction, i.e., a direction from the labial side to the lingual side.

The orthodontic appliance in one embodiment comprises a main body part and a functional component, wherein the main body part is provided with a groove, and the functional component is arranged on the main body part. For example, the orthodontic appliance may be an orthodontic bracket with a slot extending through the orthodontic bracket in a mesial-distal direction separating the orthodontic bracket into a first working wing and a second working wing. Of course, the orthodontic appliance may also be a buccal tube, with the groove extending through the buccal tube in a mesial-distal direction. The slot is for receiving an archwire.

The functional component is movable or deformable or rotatable relative to the main body part to switch between a first working state and a second working state. Under the condition of a first working state, the first end of the functional component protrudes out of the main body part to realize a traction function, the second end of the functional component does not enter the groove and cannot realize a locking function, and at the moment, the functional component only realizes the traction function but cannot realize locking; in the second working state, one of the first end or the second end of the functional component enters the groove to realize the locking function, and the first end and the second end of the functional component can not realize the traction function, so that the functional component only realizes the locking function but can not realize the traction function. Therefore, the orthodontic appliance can not be locked by the traction function or can not be pulled by the locking function, and can be suitable for more application scenes.

The present invention is explained in detail below with reference to three specific examples, but the present invention is not limited to these three specific examples.

Referring to fig. 1 to 6, a first embodiment of an orthodontic appliance is shown. Specifically, the orthodontic appliance in the first embodiment is an orthodontic bracket 100. The orthodontic bracket 100 in this embodiment includes a body portion 110, a base plate 120, a cover portion 130, and a functional component 140. The main body portion 110 is provided with a groove 111, specifically, the groove 111 penetrates through two sides of the main body portion 110 along the mesial-distal direction, and the groove 111 divides the main body portion 110 into two components including a first operating wing 112 and a second operating wing 113, and the groove 111 is used for accommodating an archwire.

The base plate 120 is disposed on a bottom surface of the body portion 110, and the base plate 120 is used to bond the orthodontic bracket 100 to a tooth surface. The lid portion 130 is provided on the main body portion 110 for opening or closing the groove 111. Specifically, the cover portion 130 is slidably provided on the lip side surface of the second operating wing 113.

The functional component 140 is disposed on the main body portion 110, and the functional component 140 is movable relative to the main body portion 110 to switch between a first operating state and a second operating state:

in the first operating state, the first end 141 of the functional component 140 protrudes out of the main body 110 to perform a pulling function, and the second end 142 of the functional component 140 does not enter the groove 111 to perform a locking function. That is, in the first operating state, feature 140 is pulled but not locked.

In the second operating condition, the second end 142 of the functional member 140 enters the slot 111 to perform the locking function, and neither the first end 141 nor the second end 142 of the functional member 140 performs the pulling function. That is, in the second operating state, feature 140 is locked but not pulled. And the functional component 140 is not detached from the main body 110 and remains attached to the main body 110 regardless of the first and second operating states.

Furthermore, the main body 110 is provided with an open cavity 114 communicated with the groove 111, the functional component 140 is disposed in the open cavity 114 in a penetrating manner, and the functional component 140 is movable relative to the main body 110 to realize switching between the first working state and the second working state.

Specifically, the open cavity 114 is disposed on the first working wing 112 of the body 110, and the open cavity 114 penetrates the gingival surface of the first working wing 112 and the sidewall of the groove 111 along the gingival-jaw direction. The functional component 140 may be an elongated rod shape, and one end of the functional component 140 extends into the main body 110 through the open cavity 114.

Further, the orthodontic bracket 100 further comprises a spring plate 150, and the spring plate 150 is embedded in the side wall of the open cavity 114. The functional component 140 is connected to the elastic sheet 150, and the deformation of the elastic sheet 150 causes the first end 141 of the functional component 140 to extend out of the main body 110 to achieve a traction function or the second end 142 of the functional component 140 to extend into the groove 111 to achieve a locking function.

Specifically, after the elastic sheet 150 is embedded in the open cavity 114, the elastic sheet 150 is approximately in a curved arc shape, and two ends of the elastic sheet 150 are embedded in the side wall of the open cavity 114. The functional component 140 is further provided with a through hole 143, the elastic sheet 150 is inserted and fixed in the through hole 143, and the elastic sheet 150 is driven to protrude towards the groove 111 or the gum of the main body 110 in the process that the functional component 140 moves relative to the main body 110. For example, when the first end 141 of the functional component 140 extends out of the main body 110 to perform the traction function, the elastic piece 150 protrudes toward the gum of the main body 110. When the second end 142 of the functional component 140 extends into the groove 111 to achieve the locking function, the resilient piece 150 protrudes toward the groove 111. The strip-shaped rod-shaped functional component 140 and the curved arc-shaped elastic sheet 150 are adopted, and the elastic performance of the elastic sheet 150 is utilized, so that the structure is stable, and the operation is easy.

Further, the orthodontic bracket 100 further comprises a pressing member 160, and the pressing member 160 is disposed at the second end 142 of the functional member 140 and is located in the slot 111. As shown in fig. 3, when the pressing member 160 is located in the slot 111 and abuts against the side wall of the slot 111 near the gingival, the pressing member 160 cannot be locked, and the first end 141 of the functional component 140 protrudes out of the main body 110 to achieve traction. As shown in fig. 6, the pressing member 160 is located in the slot 111 and can press the arch wire to achieve the locking function. Specifically, the pressing component 160 may be a pressing plate, and when the pressing plate is pressed against the arch wire in the slot 111, the area of the pressing plate is large, so as to increase the contact area between the pressing plate and the arch wire, thereby ensuring that the arch wire does not shift randomly and better transmit torque. Of course, in other embodiments, the abutment member 160 may also be located within the open cavity 114, where the abutment member 160 does not lock the archwire within the slot 111. Or the biasing member 160 is partially disposed within the open cavity 114 and partially disposed within the slot 111, wherein the biasing member 160 does not lock the archwire within the slot 111.

The specific working principle of the first embodiment is as follows:

referring to fig. 1 to 3, in the first working state, the first end 141 of the functional component 140 protrudes out of the main body 110 to implement a pulling function, and the second end 142 of the functional component 140 does not enter the groove 111 to implement a locking function. The resilient tab 150 projects toward the gum of the body 110, and the pressing member 160 is located in the groove 111 and abuts against the sidewall of the groove 111 near the gum.

Referring to fig. 4 to 6, in the second working state, the first end 141 of the functional component 140 retracts into the main body 110, and the traction function cannot be realized. The second end 142 of the functional component 140 enters the slot 111 to hold the archwire tightly for a locking function, and neither the first 141 nor the second 142 end of the functional component 140 can perform a pulling function.

The functional component 140 is not removed from the main body 110 and remains attached to the main body 110 regardless of the first operating state or the second operating state.

In other embodiments, the cavity is not limited to be open at both ends, and may have other shapes or be in higher communication with the outside. For the non-self-ligating orthodontic bracket 100, the surface of the working wing is inherently provided with some grooves, that is, a space suitable for accommodating the functional component 140 and the spring plate 150, the space is a cavity, so that the functional component 140 and the spring plate 150 do not protrude out of the main body 110 obviously. The functional component 140 and the spring piece 150 are exposed, so that the processing difficulty and the production cost can be effectively reduced.

In other embodiments, the open cavity may be replaced by a through hole with an internal thread, and the functional component is connected to the main body by a thread, and at this time, the functional component is moved relative to the main body by a thread. Or the open type cavity is replaced by a through hole, a clamping groove is formed in the inner side wall of the through hole, a clamping protrusion matched with the clamping groove is formed in the outer side wall of the functional component, the functional component can move relative to the main body part, and when the clamping protrusion is matched with the clamping groove, positioning is achieved.

Referring to fig. 7 to 10, the orthodontic appliance of the second embodiment is an orthodontic bracket 200. The orthodontic bracket 200 in this embodiment includes a body portion 210, a base plate 220, a cap portion 230, and a functional component 240. The main body portion 210 is provided with a groove 211, specifically, the groove 211 penetrates through two sides of the main body portion 210 along the proximal and distal directions, and the groove 211 divides the main body portion 210 into two components including a first operating wing 212 and a second operating wing 213, and the groove 211 is used for accommodating the archwire 201.

The base plate 220 is disposed on a bottom surface of the body portion 210, and the base plate 220 is used to bond the orthodontic bracket 200 to a tooth surface. The cover portion 230 is provided on the main body portion 210 to open or close the slot 211. Specifically, the cover body portion 230 is slidably provided on the lip side surface of the second operating wing 213.

The functional component 240 is disposed on the main body portion 210, and the functional component 240 is deformable relative to the main body portion 210 to switch between a first operating state and a second operating state:

in the first operating state, the first end 241 of the functional component 240 protrudes out of the main body portion 210 to perform a pulling function, and the second end 242 of the functional component 240 does not enter the slot 211 to perform a locking function. That is, in the first operating state, feature 240 pulls but does not lock.

In the second operating condition, the first end 241 of the functional component 240 enters the slot 211 to perform the locking function, and neither the first end 241 nor the second end 242 of the functional component 240 performs the pulling function. That is, in the second operating state, feature 240 is locked but not pulled. And functional component 240 is not removed from body portion 210 and remains attached to body portion 210 regardless of the first and second operating states.

Specifically, the functional component 240 is arc-shaped and has elastic performance, and the second end 242 of the functional component 240 is fixedly disposed on the main body portion 210. In the first operating state, the first end 241 of the functional component 240 protrudes out of the main body 210 to implement a traction function; in the second operating state, the first end 241 of the functional component 240 extends into the groove 211 to achieve the locking function. The switching of first operating condition and second operating condition is realized through the deformation of functional unit 240, and simple structure not only convenient operation has utilized functional unit 240's elasticity performance moreover, and overall structure is more stable when having traction function and locking function.

Further, the first end 241 of the functional component 240 is provided with a limit locking block 243, and the cross-sectional area of the limit locking block 243 is larger than that of the end part of the first end 241, so that when in the first working state, a limit function can be provided for the traction piece, and the traction piece is prevented from being separated from the first end 241 of the functional component 240; when in the second operating state, the contact area with the arch wire 201 can be increased, and the locking function can be better provided.

The specific working principle of the second embodiment is as follows:

referring to fig. 7 to 8, in the first working state, the first end 241 of the functional component 240 protrudes out of the main body 210 to achieve a pulling function, and the first end 241 and the second end 242 of the functional component 240 do not enter the groove 211 to achieve a locking function.

Referring to fig. 9 to 10, in the second working condition, the first end 241 of the functional component 240 is deformed and enters the slot 211 to tightly abut against the arch wire 201, so as to achieve the locking function, and neither the first end 241 nor the second end 242 of the functional component 240 can achieve the pulling function. That is, in the second embodiment, the pulling function and the locking function are realized by the first end 241 of the functional component 240, and the second end 242 of the functional component 240 does not realize the pulling and locking.

Regardless of the first or second operating state, the functional component 240 is not removed from the body portion 210 and remains attached to the body portion 210.

Referring to fig. 11 to 13, an orthodontic appliance in a third embodiment is shown, wherein the orthodontic appliance is an orthodontic bracket 300. The orthodontic bracket 300 in this embodiment includes a body portion 310, a base plate 320, a cap portion 330, and a functional component 340. The main body portion 310 is provided with a groove 311, specifically, the groove 311 penetrates through two sides of the main body portion 310 along the mesial-distal direction, and the groove 311 divides the main body portion 310 into two components including a first working wing 312 and a second working wing 313, and the groove 311 is used for accommodating the archwire 301.

The base plate 320 is disposed on a bottom surface of the body portion 310, and the base plate 320 is used to bond the orthodontic bracket 300 to a tooth surface. The lid portion 330 is provided on the main body portion 310 for opening or closing the groove 311. Specifically, the cover portion 330 is slidably disposed on the lip side surface of the second operating wing 313.

The functional component 340 is disposed on the main body portion 310, and the functional component 340 is rotatable relative to the main body portion 310 to switch between a first operating state and a second operating state:

in the first operating state, the first end 341 of the functional component 340 protrudes out of the main body 310 to perform a pulling function, and the second end 342 of the functional component 340 does not enter the groove 311 to perform a locking function. That is, in the first operating state, feature 340 pulls but does not lock.

In the second operating state, the first end 341 of the functional component 340 rotates relative to the main body 310, the locking function is realized by entering the groove 311, and the traction function cannot be realized by the first end 341 and the second end 342 of the functional component 340. That is, in the second operating state, feature 340 is locked but not pulled. And the functional component 340 is not detached from the main body part 310 and remains attached to the main body part 310 regardless of the first and second operation states.

Specifically, the second end 342 of the functional component 340 is rotatably disposed on the main body 310, and in a first operating state, the first end 341 of the functional component 340 rotates to a position protruding out of the main body 310 to implement a traction function; in the second working condition, the first end 341 of the functional component 340 extends into the slot 311 to achieve the locking function.

Further, the second end 342 of the functional component 340 is rotatably disposed on the main body portion 310 through an adjusting screw 350, and the adjusting screw 350 is provided with a fitting bit. For example, in the present embodiment, the main body 310 has a first threaded hole, the functional component 340 has a second threaded hole, and the adjusting screw 350 is inserted into the first threaded hole and the second threaded hole, so that the second end 342 of the functional component 340 is rotatably disposed on the main body 310. The functional component 340 can be rotated by a screwing tool in cooperation with a suitable bit on the adjusting screw 350, so that the first operating state and the second operating state can be switched. For example, the mating locations may be square bosses or hexagonal socket holes. In other embodiments, the fitting position may be an n-angle hole or an n-angle protrusion corresponding to different shapes of the screwing tool, where n is a natural number and 1 < n. Further, the transmission fitting position may also be an elliptical hole, an elliptical protrusion, a petal-shaped protrusion, or a petal-shaped hole, or other hole or protrusion with a non-circular cross section, so that the adjusting screw 350 can be driven to rotate after the screwing tool is matched with the adjusting screw 350, and the functional component 340 is driven to rotate relative to the main body portion 310. Even if the fitting bit is a gear, correspondingly, the receiving end of the screwing tool is a matched gear, and the adjusting screw 350 can be driven to rotate.

Further, the first end 341 of the functional component 340 is provided with a limit locking block 343, and the cross-sectional area of the limit locking block 343 is larger than that of the end of the first end 341. Therefore, when in the first working state, the device can provide a limiting effect for the traction piece and prevent the traction piece from being separated from the first end 341 of the functional component 340; when in the second working state, the contact area with the arch wire 301 can be increased, and the locking function can be better provided.

In the illustration of fig. 13, the archwire 301 is abutted by the limit stop 343 at the first end 341 of the functional component 340. In other embodiments, the arch wire 301 may also be abutted by the limit lock 343 in cooperation with the first end 341 of the functional component 340, with the arch wire 301 being received within the slot formed by the limit lock 343 in cooperation with the first end 341.

The specific working principle of the third embodiment is as follows:

referring to fig. 11 to 12, in the first working state, the first end 341 of the functional component 340 protrudes out of the main body 310 to implement the pulling function, and the first end 341 and the second end 342 of the functional component 340 do not enter the groove 311 to implement the locking function.

Referring to fig. 13, in the second working state, the functional component 340 is rotated, so that the first end 341 of the functional component 340 enters the slot 311 to tightly abut against the arch wire 301, thereby achieving the locking function, and neither the first end 341 nor the second end 342 of the functional component 340 can achieve the pulling function. That is, in the second embodiment, regardless of the pulling function or the locking function, the first end 341 of the functional block 340 is used to perform the pulling function and the locking function are not performed by the second end 342 of the functional block 340.

The functional component 340 is not removed from the main body portion 310 and remains attached to the main body portion 310 regardless of the first operating state or the second operating state.

Of course, in other embodiments, the bottom plate and the cover portion may be omitted, which does not affect the switching of the functional components between the first operating state and the second operating state to adapt to more application scenarios.

The present invention also provides an orthodontic system comprising an archwire and at least one orthodontic appliance of any of the above embodiments, the archwire being received in a slot of the orthodontic appliance.

In the above embodiments, the main body and the lid are combined into a smooth curved surface. Is a preferred embodiment, effectively reducing the foreign body sensation and the uncomfortable sensation of the user. In other embodiments, the body portion may be a conventional square self-ligating bracket. The connection between the cap and the body is not limited to sliding connection, and other embodiments may be rotating connection, turning connection, etc.

In other embodiments, the body portion may also be a non-self-ligating bracket, i.e., a cover portion that is not provided to cover the slot. In addition, in other embodiments of the present invention, the bottom plate is not provided, as long as the bottom surface of the main body has a structure adhered to the tooth surface.

The above embodiments are all orthodontic brackets. In other embodiments, the orthodontic appliance of the invention is a buccal tube. Some conventional buccal tubes are not designed with working wings, but the buccal tube is provided with a groove dividing the main body of the buccal tube into two components. The utility model is suitable for orthodontic appliances which are provided with the grooves and the grooves divide the main body part into two parts.

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.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. The orthodontic appliance is characterized by comprising a main body part and a functional component, wherein a groove is formed in the main body part, the functional component is arranged on the main body part, and the functional component is movable or deformable or rotatable relative to the main body part so as to be switched between a first working state and a second working state:

under the condition of a first working state, the first end of the functional component protrudes out of the main body part to realize a traction function, and the second end of the functional component does not enter the groove and cannot realize a locking function;

in the second working state, one of the first end or the second end of the functional component enters the groove to realize the locking function, and the first end and the second end of the functional component cannot realize the traction function.

2. The orthodontic appliance according to claim 1, wherein the main body portion is provided with an open cavity communicated with the slot, the functional component is arranged in the open cavity in a penetrating manner, and the functional component is movable relative to the main body portion to realize switching between a first working state and a second working state.

3. The orthodontic appliance according to claim 2, further comprising a spring plate, wherein the spring plate is embedded in the side wall of the open cavity, the functional component is connected with the spring plate, and the deformation of the spring plate enables a first end of the functional component to extend out of the main body part to achieve a traction function or a second end of the functional component to extend into the groove to achieve a locking function.

4. The orthodontic appliance of claim 3 further comprising a compression member disposed at the second end of the functional member and located within the open cavity, within the slot, or within both the open cavity and the slot.

5. The orthodontic appliance of claim 1, wherein the functional component is arc-shaped and has elastic properties, the second end of the functional component is fixedly arranged on the main body, and in the first working state, the first end of the functional component extends out of the main body to realize a traction function; under the condition of a second working state, the first end of the functional component extends into the groove to realize the locking function.

6. The orthodontic appliance of claim 5 wherein said first end of said functional component is provided with a positive stop having a cross-sectional area greater than a cross-sectional area of an end of said first end.

7. The orthodontic appliance of claim 1 wherein the second end of the functional component is rotatably disposed on the body portion, and wherein in the first operative configuration, the first end of the functional component is rotated to extend beyond the body portion for a traction function; under the condition of a second working state, the first end of the functional component extends into the groove to realize the locking function.

8. The orthodontic appliance of claim 7 wherein said second end of said functional component is rotatably disposed on said body portion by an adjustment screw having an adjustment bit disposed thereon.

9. The orthodontic appliance of claim 7 wherein the first end of the functional component is provided with a positive stop having a cross-sectional area greater than a cross-sectional area of an end of the first end.

10. An orthodontic system comprising an archwire and at least one orthodontic appliance of any one of claims 1 to 9, the archwire being adapted to be received in a slot of the orthodontic appliance.

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