An orthodontic appliance and an orthodontic system

Abstract

The present invention discloses an orthodontic appliance and an orthodontic system. The orthodontic appliance includes a main body portion, and a traction component, a transmission component and a placeholder component which are independently arranged. The traction component is detachably connected to the main body portion and / or the transmission component to realize the switching between the working state and the non-working state. The transmission component and the placeholder component are arranged on the main body portion, and the transmission component is in transmission connection with the placeholder component. The main body portion is provided with a groove. When it is necessary to change the effective space of the groove, the traction component is in transmission connection with the transmission component, so as to drive at least part of the placeholder component to enter or exit the groove or move along the groove width direction in the groove, so as to change the effective space of the groove. And during the process of driving the placeholder component to move, the traction component does not undergo a state change. By introducing a transmission component, the traction function and the placeholder function for the groove are split, without affecting each other, and can be freely implemented independently, or can be implemented simultaneously or not implemented simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of orthodontics, and particularly relates to an orthodontic appliance and an orthodontic system. Background Art

[0002] Orthodontic appliances include orthodontic brackets and buccal tubes, which are important components of fixed orthodontic techniques. They are appliances used to correct dental malocclusions, directly fixed on the surface of the tooth crown. The arch wire applies various types of corrective forces to the teeth through the brackets to achieve the purpose of orthodontics.

[0003] The applicant filed an invention application on January 29, 2015, with the title of Traction Bracket and Orthodontic Correction System and Its Correction Method, and the patent number is 201510046931.X.

[0004] This patent discloses a traction element, which includes a locking bolt and a traction bolt. The difference between the locking bolt and the traction bolt is that the end of the locking bolt protrudes. When the locking bolt is inserted into the locking traction hole of the main body part, the end of the locking bolt can enter the main groove to lock the arch wire. When the traction bolt is inserted into the locking traction hole of the main body part, the end of the traction bolt does not enter the main groove and will not lock the arch wire, but only for traction.

[0005] This bracket can realize a traction locking system: the bracket with a locking bolt is an active bracket, and the bracket with a traction bolt is a passive bracket. The two ends of the rubber band are respectively hung on the locking bolt and the traction bolt, and the elastic contraction of the rubber band acts on the locking bolt and the traction bolt. Due to the large friction between the locking bolt and the arch wire, the active bracket pulls the passive bracket, and the bracket with the traction bolt drives the teeth to approach the teeth where the bracket with the locking bolt is located, so as to realize the phased correction of malpositioned teeth.

[0006] In order to realize the arbitrary switching between the active and passive brackets, the locking bolt must have a traction function. However, this traction locking system cannot solve the situation where only locking is required without traction. When only locking is needed, the head of the locking bolt still protrudes continuously, bringing obvious discomfort to the patient. And it causes a series of oral health problems brought by the traction bolt, such as hanging food residues and breeding bacteria, or wearing the oral mucosa and inducing ulcers. Summary of the Invention

[0007] In view of the above technical problems, the present invention provides a multifunctional adjustable orthodontic appliance and an orthodontic system.

[0008] The technical solution adopted by the present invention to solve the above technical problems is:

[0009] An orthodontic appliance comprises a main body and a traction component, a transmission component and a placeholder component which are independently arranged from each other, wherein the traction component is detachably connected to the main body and / or the transmission component to achieve switching between a working state and a non-working state; the transmission component and the placeholder component are arranged on the main body, the transmission component is transmission-connected to the placeholder component, the main body is provided with a groove, and when it is necessary to change the effective space of the groove, the traction component is transmission-connected to the transmission component, thereby driving the placeholder component to at least partially enter or exit the groove or move in the groove along the groove width direction to change the effective space of the groove; and in the process of driving the placeholder component to move, the traction component does not switch its state.

[0010] In one of the embodiments, the transmission component is provided with a transmission adapting position, and correspondingly, the traction component is provided with an access end. When the access end of the traction component docks with the transmission adapting position, the traction component is linked with the transmission component.

[0011] In one of the embodiments, the transmission adapter position is a cam, an elastic buckle, a buckle position, a thread, a protrusion or a hole with a non-circular cross section.

[0012] In one embodiment, the transmission component is connected to the access end of the traction component, and the access end of the traction component is not connected to the transmission adapter, and the traction component does not link with the transmission component.

[0013] In one embodiment, the main body is provided with an open cavity connected to the groove, the place-occupying component is arranged in the groove or in the cavity and the groove, and the traction component is connected to the cavity and / or the transmission component.

[0014] In one of the embodiments, the cavity is provided with a limiting structure, so that the transmission component can rotate in the cavity but cannot move axially; the place-occupying component is limited by the cavity and / or the groove and cannot rotate.

[0015] In one embodiment, the place-occupying component is provided with a moving part which is in the shape of a plate or a block, and one side edge of the moving part abuts against the bottom wall of the groove or the inner wall of the cavity so that the moving part is restricted from rotating; the transmission component is threadedly connected to the moving part.

[0016] In one embodiment, the groove divides the main body into two working wings, and the cavity is arranged on any one of the working wings, or is arranged through the groove on both working wings; the transmission component and the place-occupying component are arranged on the same working wing, or the transmission component and the place-occupying component are arranged on different working wings.

[0017] In one of the embodiments, it further includes a bottom plate, which is arranged on the bottom surface of the main body; and a cover body, which is arranged on the surface of the main body.

[0018] An orthodontic system includes an arch wire and at least one orthodontic appliance as described in any one of the above.

[0019] Compared with the prior art, it has the following positive effects:

[0020] 1. The present invention introduces a transmission component, splitting the traction function and the function of occupying the slot groove, which do not affect each other and can be freely implemented separately, or can be implemented simultaneously or not implemented simultaneously. The present invention can reproduce the traction locking system of the prior patent and can also implement the occupying function alone. When the occupying function is implemented alone, the traction component is removed, so that the traction component will not protrude outward to cause problems such as discomfort, uncleanliness and unhygieneness.

[0021] 2. The present invention extends the traction component as a transmission component on the main body part, reducing the access degree of the screwing tool, facilitating the operation of the doctor and improving the working efficiency of the doctor.

[0022] 3. The present invention redefines the locking function. The purpose of the locking bolt in the prior art entering the slot groove is to press against the arch wire and have static friction with the arch wire, while the occupying component of the present invention has more possibilities. The occupying component of the present invention can not only achieve the locking function, but also adjust the depth of the occupying component in the slot groove, that is, only occupy a certain position in the slot groove, so as to adjust the movement space of the arch wire in the slot groove, control the torque of the arch wire, effectively reduce the number of times of arch wire replacement, and then relatively continuously, gently and precisely express the torque, achieve significant orthodontic effects, reduce the operation time of the doctor, improve the working efficiency, and reduce the mental burden and economic burden of the patient.

[0023] The present invention will be further described below with reference to the drawings and embodiments. Description of the Drawings

[0024] Figure 1 It is a schematic structural view of the bracket in the first state in Embodiment 1;

[0025] Figure 2 is Figure 1 side view of

[0026] Figure 3 is Figure 1 cross-sectional view of

[0027] Figure 4 is Figure 1 another cross-sectional view of

[0028] Figure 5 It is a schematic structural view of the bracket in the second state in Embodiment 1;

[0029] Figure 6 is Figure 5 cross-sectional view of

[0030] Figure 7 is a cross-sectional view of the bracket in the third state in Embodiment 1;

[0031] Figure 8 is Figure 7 another cross-sectional view of;

[0032] Figure 9 a cross-sectional view of the bracket in the fourth state in Embodiment 1;

[0033] Figure 10 is Figure 9 another cross-sectional view of;

[0034] Figure 11 is an exploded view of the traction component, transmission component and placeholder component in Embodiment 1;

[0035] Figure 12 is Figure 11 a structural view of the traction component in;

[0036] Figure 13 a cross-sectional view of the bracket in the first state in Embodiment 2;

[0037] Figure 14 a cross-sectional view of the bracket in the second state in Embodiment 2;

[0038] Figure 15 a cross-sectional view of the bracket in the third state in Embodiment 2;

[0039] Figure 16 a cross-sectional view of the bracket in the third state in Embodiment 2;

[0040] Figure 17 is an exploded view of the traction component and the screw in Embodiment 3;

[0041] Figure 18 is Figure 17 a cross-sectional view after the shown traction component and the screw are fitted together.

[0042] In the figure,

[0043] 101, bracket; 110, main body part; 120, cover body part; 130, bottom plate; 140, slot groove; 111, first working wing; 112, second working wing; 150, transmission component; 160, placeholder component; 170, traction component; 113, cavity; 114, first flange; 115, first annular groove; 116, second annular groove; 151, transmission adaptation position; 152, third annular groove; 161, moving part; 162, clamping arm; 171, traction end; 172, access end; 173, second flange;

[0044] 102, Bracket; 270, Traction Component; 213, Cavity; 250, Transmission Component; 251, Transmission Adaptation Position; 214, Annular Groove; 252, Flange; 260, Occupancy Component; 240, Slot Groove;

[0045] 310, Traction Component; 320, Transmission Component; 311, Square Hole; 321, Square Protrusion. Detailed Implementation Manner

[0046] It should be noted that the orthodontic appliance mentioned in the present invention refers to an orthodontic bracket or buccal tube, or other appliances with similar functions and similar structures.

[0047] Unless otherwise specified, in the following structural description, a reference system of maxillary teeth needs to be used to describe the embodiments of the present invention. Therefore, as used herein, terms such as labial, lingual, mesial, distal, occlusal, and gingival used to describe the orthodontic appliance are relative to the selected reference system. However, the embodiments of the present invention are not limited to the selected reference system and the described terms, because the orthodontic appliance can be used for other teeth in the oral cavity and in other directions.

[0048] For example, a bracket or buccal tube can also be coupled to the lingual surface of a tooth and fall within the scope of the present invention. Those skilled in the art will realize that when there are changes in the reference system, the descriptive terms used herein may not be directly applicable. However, the embodiments of the present invention are intended to be independent of the position and orientation in the oral cavity, and the relevant terms used to describe the embodiments are only to provide a clear description of the embodiments in the drawings. Similarly, the relevant terms labial, lingual, mesial, distal, occlusal, and gingival will never limit the present invention to a specific position or orientation.

[0049] The relevant terms labial, lingual, mesial, distal, occlusal, and gingival are industry terms for orthodontic treatment. Taking a certain tooth in the maxilla as an example, the surface of the tooth can be roughly divided into six surfaces. The surface of the tooth that occludes with the mandibular teeth is the occlusal surface; the surface of the tooth that is connected to its attached gingival tissue is the gingival surface; the occlusal surface and the gingival surface are opposite, and the direction formed by the occlusal surface and the gingival surface is also called the gingivo-occlusal direction. The surface of the tooth facing the lips is the labial surface, and the surface of the tooth facing the tongue is the lingual surface. The labial surface and the lingual surface are opposite, and the direction formed by the labial surface and the lingual surface is also called the labiolingual direction. The two surfaces of the tooth that contact adjacent teeth are the mesial surface and the distal surface respectively, and the difference lies in the distance from the middle. The direction formed by the two is also called the mesiodistal direction, or mesio-distal direction.

[0050] And in the description of directions, such as the labiolingual direction, it generally refers to both directions. While in the case of the labial-lingual direction, it specifically refers to a single direction, that is, the direction from the labial surface to the lingual surface, for this as a distinction. Embodiment

[0051] like Figures 1 to 12 As shown, the bracket 101 of this embodiment 1 includes a main body 110, a cover body 120 and a bottom plate 130. The main body 110 is provided with grooves 140 running through both sides of the main body 110 in the proximal and distal directions, and the grooves 140 divide the main body 110 into two components, including a first working wing 111 and a second working wing 112. The groove 140 is used to accommodate an archwire, and the groove 140 has two opposite side walls and a bottom wall, and is open at the top.

[0052] The bottom plate 130 is connected to the bottom surface of the main body 110 , and the bottom plate 130 is used to bond the bracket 101 to the tooth surface.

[0053] The cover portion 120 is connected to the surface of the main body portion 110 and is used to open or close the groove 140. In this embodiment, the cover portion 120 is preferably connected to the lip side surface of the second working wing 112 in a sliding manner.

[0054] For the present invention, the bottom plate 130 and the cover body 120 are optional components. As a preferred embodiment, these two components are provided.

[0055] The bracket 101 is also provided with a transmission component 150, a place-occupying component 160 and a traction component 170. The transmission component 150, the place-occupying component 160 and the traction component 170 are independent parts and are not fixedly connected to each other. The main body 110 is provided with an open cavity 113 connected to the groove 140. The cavity 113 accommodates the transmission component 150. The transmission component 150 is connected to the place-occupying component 160 in a transmission manner. The place-occupying component 160 is accommodated in the cavity 113 and the groove 140. The place-occupying component 160 is limited by the cavity 113 and / or the groove 140 so as not to rotate. The traction component 170 is detachably connected to the cavity 113. The transmission component 150 is provided with a transmission adapter position 151. Correspondingly, the traction component 170 is provided with an access end 172 transmission adapter position 151. When the access end 172 of the traction component 170 docks with the transmission adapter position 151, the traction component 170 links the transmission component 150. When the effective space of the groove 140 needs to be changed, the traction component 170 is connected to the transmission component 150 through transmission, thereby driving the place-occupying component 160 to at least partially enter or exit the groove 140 or move along the groove width direction in the groove 140 to change the effective space of the groove 140; and in the process of driving the place-occupying component 160 to move, the traction component 170 does not switch its state.

[0056] Specifically, the cavity 113 is disposed in the first working wing 111 of the main body 110. The cavity 113 penetrates through the surface of the main body 110 and the groove 140 in the gingival-jaw direction, and the opening of the cavity 113 is arranged on the gingival surface of the main body 110. The cavity 113 is provided with a limiting structure such that the transmission component 150 rotates in the cavity 113 but cannot move axially. Specifically, the limiting structure is the first flange 114 arranged on the inner wall of the cavity 113. The cavity 113 is also provided with a first annular groove 115 and a second annular groove 116 for mating and docking with the traction component 170.

[0057] Please refer to Figure 11 and Figure 12 , the transmission component 150 is a screw, and one end thereof is provided with a transmission adaptation position 151 for mating with the traction component 170. The transmission adaptation position 151 is a square protrusion. Correspondingly, the access end 172 of the traction component 170 is provided with a square hole. The other end of the transmission component 150 is provided with an external thread, and the middle part of the transmission component 150 is concave to form a third annular groove 152, and the third annular groove 152 is located between the external thread and the transmission adaptation position 151. The transmission component 150 is accommodated in the cavity 113, and the end with the transmission adaptation position 151 faces the opening of the cavity 113, and the threaded end of the transmission component 150 faces the groove 140, and the transmission component 150 is substantially perpendicular to the groove 140. The first flange 114 is in mating connection with the third annular groove 152, limiting that the transmission component 150 can only rotate around the gingival-jaw direction axis in the cavity 113 and cannot move axially significantly.

[0058] The placeholder component 160 includes a moving member 161 arranged in the groove 140. The moving member 161 is plate-shaped or block-shaped, and its two opposite plate surfaces respectively correspond to the two side walls of the groove 140. The surface facing the cavity 113 is the connection surface of the moving member 161, and the other surface is the functional surface of the moving member 161. A pair of clamping arms 162 are arranged on the connection surface of the moving member 161. The clamping arms 162 can move in the groove 140 along with the moving member 161 and can also extend into the cavity 113. An accommodation cavity for receiving the threaded end of the transmission component 150 is formed between the clamping arms 162, and the opposite surfaces of the clamping arms 162 are respectively provided with internal threads. The clamping arms 162 are in mating connection with the threaded end of the transmission component 150, realizing the transmission connection between the transmission component 150 and the placeholder component 160. In this embodiment, one side edge of the moving member 161 abuts against the bottom wall of the groove 140, so that the moving member 161 cannot rotate along with the transmission component 150, forcing the moving member 161 to convert rotation into movement to realize the placeholder function of the placeholder component 160.

[0059] The traction component 170 is a bolt body, one end of which radially protrudes into a bolt head as the traction end 171; the other end of the traction component 170 is concave to form an interface as the access end 172, which matches the transmission adaptation position 151 of the transmission component 150. The middle part of the traction component 170 radially protrudes into a second flange 173, which matches the first annular groove 115 or the second annular groove 116 of the cavity 113 for detachably connecting to the main body 110. When the second flange 173 of the traction component 170 matches the first annular groove 115 of the cavity 113, the traction component 170 does not dock with the transmission component 150. When the second flange 173 of the traction component 170 matches the second annular groove 116 of the cavity 113, that is, when the traction component 170 further penetrates into the cavity 113, the traction component 170 docks with the transmission component 150.

[0060] Working principle of Embodiment 1:

[0061] Please refer to Figures 1 to 4 , in the first state, the connecting surface of the moving part 161 closely adheres to the side wall of the connecting cavity 113 of the groove 140, and the effective space of the groove 140 is the largest. The traction component 170 is removed from the main body 110. The bracket 101 in the first state does not apply the traction function nor the occupation function.

[0062] Please refer to Figure 5 and Figure 6 , in the second state, on the basis of the first state, the traction component 170 is connected. Specifically, the access end 172 of the traction component 170 docks with the opening of the cavity 113, the second flange 173 is clamped in the first annular groove 115 of the cavity 113, and the traction end 171 of the traction component 170 is located above the main body 110 and can implement the traction function. And the traction component 170 is only connected to the cavity 113 and is not connected to the transmission component 150, and the access end 172 of the traction component 170 does not dock with the transmission adaptation position 151 of the transmission component 150.

[0063] Please refer to Figure 7 and Figure 8In the third state, based on the second state, the effective space of the groove 140 is adjusted to implement the place-occupying function. Specifically, the second flange 173 matches the second annular groove 116 of the cavity 113, and the access end 172 of the traction component 170 docks with the transmission adapter 151 of the transmission component 150, then the traction component 170 is transmission-connected to the transmission component 150. The traction component 170 drives the transmission component 150 to rotate forward or reverse, which can make the threaded end of the transmission component 150 go deep into or shallow out of the receiving cavity of the place-occupying component 160. Since the cavity 113 limits the axial movement of the transmission component 150, at the same time, the place-occupying component 160 is restricted from rotating, and the rotation is passively converted into movement, so that the place-occupying component 160 moves in the groove width direction. For example, the forward rotation of the traction component 170 can make the transmission component 150 drive the place-occupying component 160 close to the second working wing 112, and the effective space of the groove 140 becomes smaller. The reverse rotation of the traction component 170 can make the transmission component 150 drive the place-occupying component 160 away from the second working wing 112, and the effective space of the groove 140 becomes larger. When the access end 172 of the traction component 170 is separated from the transmission adapting position 151 of the transmission component 150, the effective space of the groove 140 is redefined. The situation where the access end 172 of the traction component 170 is separated from the transmission adapting position 151 of the transmission component 150 includes the removal of the traction component 170 and the traction component 170 is only connected to the cavity 113 but not connected to the transmission component 150. This third state is the removal of the traction component 170. In this third state, the bracket 101 does not have the traction function.

[0064] See also Figure 9 and Figure 10 In the fourth state, based on the third state, the traction component 170 is connected. Specifically, the access end 172 of the traction component 170 is connected to the opening of the cavity 113, the second flange 173 is engaged with the first annular groove 115 of the cavity 113, the traction component 170 is detachably connected to the cavity 113, and the traction end 171 of the traction component 170 is located above the main body 110, and can implement the traction function.

[0065] The first state, the second state, the third state and the fourth state can be switched freely, and there is no strict order of switching between the four states. After the traction component 170 is connected to the main body 110, it switches to the first annular groove 115 or the second annular groove 116 to select whether to drive the place-occupying component 160 to move.

[0066] It should be noted that the slot 140 is provided with two opposite side walls, and the total accommodating space of the slot 140 is between the two opposite side walls. In the present invention, a positioning member 160 is arranged in the slot 140 to re-divide the space in the slot 140. In some cases, as the positioning member 160 moves in the slot 140, the total accommodating space of the slot 140 remains unchanged, and the positioning member 160 only axially divides the slot 140 into two spaces. However, usually, only one of the spaces can be used to store the arch wire. Then, the space formed by the functional surface of the positioning member 160 that can be used to store the arch wire and the side wall of the slot 140 is the effective space of the slot 140 defined by the present invention. Therefore, as the positioning member 160 generates a position change or a shape change in the slot 140, the total accommodating space of the slot 140 may remain unchanged, but the effective space of the slot 140 should change. The real-time size of the effective space is based on the radial dimension of the largest arch wire that can be stored in the space at present. For the understanding of the effective space of the slot 140, the same applies to other embodiments of the present invention, which will not be elaborated below.

[0067] Compared with the prior art, Embodiment 1 can reproduce the traction locking system of the prior patent and can also implement the positioning function independently. In Embodiment 1, the traction member 170 and the positioning member 160 are structurally separated, and a transmission member 150 is introduced, so that the traction function and the positioning function of the slot 140 are separated and do not affect each other. They can be freely implemented respectively, or can be implemented simultaneously or not implemented simultaneously. The traction member 170 can be arranged on the main body 110 to achieve traction, or can be removed from the main body 110, and then the traction function fails. The transmission member 150 of Embodiment 1 is a screw, which is hidden in the main body 110. After the traction member 170 is removed, there is no obvious protruding foreign object on the surface of the bracket 101, and it will not cause discomfort, uncleanliness and unhygienic problems to the patient. The positioning member 160 can limit the arch wire or even lock the arch wire, or can be close to the side wall of the slot 140 to yield the largest effective space. The space of the slot 140 by the positioning member 160 is adjustable to meet different orthodontic stages.

[0068] In addition, taking the traction member 170 as an extension of the transmission member 150 on the main body 110, a screwing tool is linked to the traction member 170, the traction member 170 is linked to the transmission member 150, and the transmission member 150 is linked to the positioning member 160, so as to change the effective space of the slot 140. With this transmission chain, the access degree of the screwing tool is reduced, which is convenient for the doctor to operate and improves the doctor's work efficiency. Embodiment

[0069] As Figures 13 to 16 shown, the bracket 102 of Embodiment 2 is basically the same as the structure of Embodiment 1, and the main difference is that:

[0070] The traction component 270 of Embodiment 2 is not detachably connected to the cavity 213, and the traction component 270 of Embodiment 2 is detachably connected to the transmission component 250; therefore, the cavity 213 of the main body portion is not provided with the first annular groove 214 and the second annular groove 214 for mating and docking with the traction component 270.

[0071] The traction component 270 of Embodiment 2 is detachably connected to the transmission component 250. The access end of the traction component 270 is provided with an internal thread. Correspondingly, the transmission component 250 is a screw rod, and its transmission adaptation position 251 is an external thread.

[0072] The connection relationship between the cavity 213 of Embodiment 2 and the transmission component 250 is that the cavity 213 is provided with an annular groove 214. Correspondingly, the transmission component 250 is a screw rod, and a flange 252 is provided in the middle of the screw rod. The annular groove 214 is matched and docked with the flange 252, restricting the transmission component 250 to only rotate around the gingival-jaw direction axis in the cavity 213 and not be able to move axially significantly.

[0073] The working principle of Embodiment 2:

[0074] Please refer to Figure 13 , in the first state, the connecting surface of the moving part closely adheres to the side wall of the cavity 213 of the groove 240, and the effective space of the groove 240 is the largest. The traction component 270 is removed from the main body portion. The bracket 102 in the first state does not apply the traction function nor the placeholder function.

[0075] Please refer to Figure 14 , in the second state, on the basis of the first state, the traction component 270 is connected. Specifically, the access end of the traction component 270 docks with the opening of the cavity 213, the access end of the traction component 270 is in interference fit with the transmission adaptation position 251 of the transmission component 250, and the traction end of the traction component 270 is located above the main body portion, capable of implementing the traction function.

[0076] Please refer to Figure 15 , in the third state, on the basis of the second state, the effective space of the groove 240 is adjusted to implement the placeholder function. Specifically, the traction component 270 drives the transmission component 250 to rotate forward or backward, which can make the threaded end of the transmission component 250 penetrate into or out of the receiving cavity of the placeholder component 260. Since the cavity 213 restricts the axial movement of the transmission component 250, at the same time, the placeholder component 260 is restricted from rotating and passively converts the rotation into movement, causing the placeholder component 260 to move in the groove width direction. For example, rotating the traction component 270 forward can make the transmission component 250 drive the placeholder component 260 closer to the second working wing, and the effective space of the groove 240 becomes smaller; rotating the traction component 270 backward can make the transmission component 250 drive the placeholder component 260 away from the second working wing, and the effective space of the groove 240 becomes larger.

[0077] See also Figure 16 , the fourth state, based on the third state, the traction component 270 is removed.

[0078] The first state, the second state, the third state and the fourth state can be switched freely, and there is no strict order of change between the four states. Example

[0079] like Figures 17 to 18 As shown, the structure of the bracket of the present embodiment 3 is basically the same as that of the embodiment 2, and the main difference is that the traction component 310 and the transmission component 320 are detachably connected by screw connection. Specifically, the access end of the traction component 310 of the embodiment 2 is provided with a square hole 311, and correspondingly, the transmission adapter position of the transmission component 320 is a square protrusion 321, and the traction component 310 and the transmission component 320 are interference-fitted and linked.

[0080] The working principle of Example 3 is the same as that of Example 3. Example

[0081] This embodiment 4 is basically the same as the embodiment 1, except that: the transmission component of the embodiment 4 is a threaded sleeve, which is a sleeve-shaped sleeve with two ends open. The threaded sleeve is provided with an external thread, which is screwed with the place-taking component. The threaded sleeve is provided with an inner wall to form a hexagonal hole, which is a transmission adapter, and the access end of the traction component is connected to the transmission. Correspondingly, the access end of the traction component is a hexagonal column.

[0082] When the second flange of the traction component of Example 4 matches the first annular groove, the traction component does not dock with the transmission component. When the second flange of the traction component matches the second annular groove of the cavity, that is, the traction component further penetrates into the cavity, the traction component docks with the transmission component. Example

[0083] This embodiment 5 is basically the same as embodiment 2, except that: the transmission component of embodiment 5 is a threaded sleeve, which is a sleeve shape with two ends open. The threaded sleeve is provided with an external thread, which is threadedly connected to the place-taking component. The inner wall of the threaded sleeve is provided with an internal thread, which is a transmission adapter, and the access end of the traction component is connected to the transmission. Correspondingly, the access end of the traction component is an external thread.

[0084] The traction component connection method of Example 5 is only detachably connected to the transmission component, and is not connected to the cavity.

[0085] In the case of screw connection, those skilled in the art will know that the number of threads required to connect the traction component and the transmission component is significantly greater than the number of threads required for the displacement of the spacer component, and after the traction component is screwed and fastened to the transmission component, the traction component and the transmission component will also have a certain static friction. Rotating the traction component to adjust the spacer component will not affect the connection relationship between the traction component and the transmission component. Example

[0086] This embodiment 6 is basically the same as embodiment 1, except that:

[0087] The traction component of Example 6 is not detachably connected to the cavity, and the traction component of Example 6 is detachably connected to the transmission component; therefore, the cavity of the main body is not provided with a first annular groove and a second annular groove for matching the docking traction component.

[0088] The traction component of Example 6 is detachably connected to the transmission component, and an elastic buckle is provided on the outer side wall of the access end of the traction component of Example 6. Specifically, the access end of the traction component is concave in a sleeve shape, and a blind groove is opened in the side wall of the access end from the opening axis, and a convex block is provided on the outer wall of the opening edge at the groove to form an elastic buckle.

[0089] The transmission component of Example 6 is a threaded sleeve, which is in the shape of a sleeve with one end open and the other end closed. The threaded sleeve is accommodated in the cavity, the open end of the threaded sleeve corresponds to the opening of the cavity, the closed end faces the groove, and the central axis of the threaded sleeve is substantially perpendicular to the groove. The inner side wall of the threaded sleeve is respectively provided with an annular groove and a buckle position, both of which are used to dock the access end of the traction component, and the buckle position is a transmission adapter position. The outer wall of the threaded sleeve close to the closed end is provided with an external thread, which is screwed to the place-taking component.

[0090] Working principle of embodiment 6:

[0091] In the first state, the connection surface of the moving part is close to the side wall of the connection cavity of the groove, and the effective space of the groove is the largest. The traction component is removed from the main body. The bracket in the first state has neither the traction function nor the space-occupying function.

[0092] In the second state, based on the first state, the traction component is connected. Specifically, the access end of the traction component enters the opening of the cavity, and the access end of the traction component docks the inner wall of the threaded sleeve. Specifically, the elastic buckle of the access end of the traction component slides into the annular groove, and the traction end of the traction component is located above the main body, which can implement the traction function. At this time, the traction component is connected to the transmission component, but the traction component is not docked with the transmission adapter, so the traction component does not link the transmission component.

[0093] The third state is based on the second state. The effective space of the groove is adjusted to implement the occupancy function. Specifically, the elastic buckle at the access end of the traction component slides into the buckle position of the transmission component and is engaged with each other by matching. The rotation of the traction component can drive the transmission component to rotate. Driving the transmission component to rotate forward or backward can make the threaded end of the transmission component penetrate into or withdraw from the receiving cavity of the occupancy component. Due to the restriction of the axial movement of the transmission component by the cavity, at the same time, the occupancy component is restricted from rotating and passively converts the rotation into movement, so that the occupancy component moves in the groove width direction. For example, rotating the traction component forward can make the transmission component drive the occupancy component closer to the second working wing, and the effective space of the groove becomes smaller; rotating the traction component backward can make the transmission component drive the occupancy component away from the second working wing, and the effective space of the groove becomes larger. When the access end of the traction component is separated from the transmission adaptation position of the transmission component, the effective space of the groove is re-determined. The situation where the access end of the traction component is separated from the transmission adaptation position of the transmission component includes the removal of the traction component and the elastic buckle sliding out of the buckle position and into the annular groove. In this third state, the elastic buckle slides out of the buckle position and into the annular groove, and the traction component is not removed from the transmission component. The traction component is connected to the transmission component but not linked. The traction end of the traction component is above the main body. In this third state, the bracket has a traction function.

[0094] The fourth state is based on the third state. The traction component is removed.

[0095] The first state, the second state, the third state, and the fourth state can be freely switched, and there is no strict transformation order among the four states.

[0096] Regarding the connection relationship of the traction component, from the above embodiments, it can be seen that the traction component can be detachably connected to the cavity, and the traction component can also be detachably connected to the transmission component. In other embodiments, the traction component can also be detachably connected to the cavity and the transmission component at the same time. When the traction component is provided on the main body and the traction end is above the main body, the traction component is in the working state; otherwise, the traction component is in the non-working state.

[0097] As for the connection mode of the traction component, it can be seen from the above embodiments that the traction component is movably connected to the housing and / or the transmission component, specifically a detachable connection. Among them, the detachable connection mode includes snap connection, interference fit and screw connection, and the snap connection includes the fit between the elastic snap and the buckle position, the buckle between the snap convex and the buckle position, and the fit between the annular groove and the flange. For example: a hemispherical protrusion is provided on the outer wall of the access end of the traction component, and correspondingly, the inner wall of the cavity or the inner wall of the transmission component is concave to form a hemispherical buckle, or the positions of the protrusion and the buckle are interchanged; or, an elastic buckle is provided on the outer wall of the access end of the traction component, and correspondingly, the inner wall of the cavity or the inner wall of the transmission component is concave to form a buckle, or the positions of the elastic buckle and the buckle are interchanged; or, the traction component and the cavity are interference fit, or the traction component and the transmission component are interference fit; or, the access end of the traction component is provided with an external thread, and correspondingly, the inner wall of the cavity is provided with an internal thread; or, the access end of the traction component is provided with an external thread or an internal thread, and correspondingly, the inner wall of the transmission component is provided with an internal thread or an external thread; or, the traction component simultaneously engages the transmission component and the cavity.

[0098] In the above embodiments, the traction end of the traction component is a bolt head. In other embodiments, the traction end can be a hook or other shapes that can be used for traction.

[0099] In the above embodiments, the transmission adapter is a square protrusion. In other embodiments, corresponding to the shape of the access end of different screwing tools, the transmission adapter can be an inner n-angle hole or an n-angle protrusion, where n is a natural number and 1<n. Furthermore, the transmission adapter can also be an elliptical hole, an elliptical protrusion, a petal-shaped protrusion or a petal-shaped hole, etc., all holes or protrusions with non-circular cross-sections, so that the screwing tool can drive the placeholder component to rotate after matching the placeholder component.

[0100] In the above-mentioned multiple embodiments, the cavity accommodates the transmission component and the place-occupying component, avoids the parts from being exposed, the structure is built-in, the appearance is neat and beautiful, and the patient's comfort is improved. In addition, when the traction component is selected to be connected to the cavity, the cavity is also conducive to avoiding the mutual influence of the traction function and the place-occupying function. Specifically, compared with the traditional traction component fixedly connected to the main body, the traction component of the present invention has a certain degree of mobility. When the traction component implements traction, the traction component may have a very slight position deviation or deflection due to the force of the ligature wire or the rubber band. Similarly, the place-occupying component also has a certain degree of mobility. When the place-occupying component implements the place-occupying function, it may produce a slight position deviation due to the force of the arch wire. For the embodiment in which the traction component is connected to the place-occupying component by transmission, the deviation may be transmitted. Of course, the deviation and indirect influence are not obvious, but if the traction component is directly connected to the cavity, the problem is avoided from the root.

[0101] In other embodiments, the cavity is not limited to having openings only at both ends. It can be of other shapes or have a higher degree of connection to the outside world. For non-self-locking orthodontic brackets, some grooves are inherently provided on the surface of the working wing, which is a space suitable for accommodating the occupying member. This space is the cavity, such that the transmission member and the occupying member do not protrude significantly from the main body. The way the transmission member and the occupying member are exposed can effectively reduce the processing difficulty and production cost.

[0102] In each embodiment, the limiting connection between the cavity and other components is achieved by providing an annular groove and engaging it with a flange. Those skilled in the art can make simple interchanges based on common general knowledge.

[0103] In other embodiments, the groove divides the main body into two working wings, and the cavity is provided through the groove on the two working wings.

[0104] In the above-mentioned multiple embodiments, the transmission member and the occupying member are arranged on the first working wing. In other embodiments, the transmission member and the occupying member can also be jointly arranged on the second working wing. The arrangement of the transmission member and the occupying member is not affected by whether a cover part is provided on this working wing.

[0105] Furthermore, in other embodiments, the transmission member and the occupying member can be arranged on different working wings. For example, the transmission member is arranged on the first working wing, and the occupying member is arranged on the second working wing. The transmission member penetrates the bottom wall of the groove to dock with the occupying member. The functional surface of the moving member faces the side wall of the groove close to the first working wing. The moving member approaches or moves away from the first working wing to change the effective space of the groove.

[0106] In Embodiment 1, by the bottom edge of the moving member abutting against the bottom wall of the groove, the occupying member cannot rotate. In other embodiments, a limiting structure is provided on the moving member, and the limiting structure is in limiting connection with the inner wall of the cavity or the side wall of the groove, such that the occupying member cannot rotate. Specifically, the moving member is provided with a connecting rod, which is perpendicularly connected to the connecting surface of the moving member. Correspondingly, a blind hole perpendicular to the surface of the side wall of the groove is provided on the side wall of the groove, and the connecting rod and the blind hole match each other. As the moving member moves in the groove, the connecting rod goes in and out of the blind hole, and the moving member cannot rotate.

[0107] In Embodiments 1, 2, and 3, the clamping arm of the occupying member is provided with an internal thread to dock with the external thread of the transmission member. In other embodiments, the threads can also be interchanged to achieve the same technical effect.

[0108] In the above-mentioned multiple embodiments, the moving member and the clamping arm are integrally formed. In other embodiments, the moving member and the clamping arm are not integrally formed, and the moving member and the clamping arm can be connected by welding, clamping, screwing, interference fit or other means. In Embodiments 1, 2 and 3, the clamping arm protrudes from the moving member. Those skilled in the art should know that the clamping arm only provides a receiving cavity and an internal thread to connect the threaded end of the transmission component. Therefore, based on this inventive concept, the function of the clamping arm can be built into the moving member. For example, if the moving member is a sufficiently thick plate, a local concave portion is formed on its connecting surface to form a receiving cavity, and an internal thread is provided on the inner wall of the receiving cavity, the technical effect of the present invention can also be achieved.

[0109] In Embodiment 1, the moving member is arranged in the groove, and its clamping arm extends deep into the cavity, that is, the positioning member is arranged in the groove and the cavity. In other embodiments, such as the case where the function of the clamping arm is built into the moving member as described above, the positioning member can be completely arranged in the groove.

[0110] Furthermore, the moving member is arranged in the groove and only moves within the groove; or, the moving member is arranged in the cavity and the groove, and the moving member can completely withdraw from the groove and can also completely enter the groove; or, the moving member can completely withdraw from the groove and can only partially enter the groove; or, the moving member can partially withdraw from the groove and can also partially enter the groove; or, the moving member can only partially withdraw from the groove but can completely enter the groove. For the design of the moving member that does not withdraw from the groove at all, the moving member can extend to both sides to cover the side walls of the groove, or it can be that a groove is formed by concave inward on the side wall of the groove to accommodate the moving member and make it flush with the side wall, as in Embodiment 1.

[0111] The above-mentioned multiple embodiments all adopt the design that the main body part and the cover body part are combined into a smooth curved surface shape. As a preferred embodiment, it can effectively reduce the foreign body sensation and discomfort of the user. In other embodiments, the main body part can be a traditional square self-locking bracket. The connection between the cover body part and the main body part is not limited to a sliding connection, and other embodiments can be a rotating connection, a flipping connection, etc.

[0112] In other embodiments, the main body part is a non-self-locking bracket, that is, a cover body part for covering the groove is not provided. In addition, in other embodiments of the present invention, a bottom plate is not provided, as long as the bottom surface of the main body part has a structure for adhering to the tooth surface.

[0113] The above-mentioned multiple embodiments are all orthodontic brackets. In other embodiments, the orthodontic appliance of the present invention is a buccal tube. Some traditional buccal tubes are not designed with working wings, but the buccal tube is provided with a groove, and the groove divides the main body of the buccal tube into two components. The present invention is applicable to any orthodontic appliance with a groove that divides its main body into two components.

[0114] The present application also provides an orthodontic appliance, comprising an arch wire and at least one bracket as described above, and the arch wire is received in the slot groove of the bracket.

[0115] The present invention is not limited to the above embodiments. If various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and if these modifications and variations are within the scope of the claims of the present invention and equivalent technical scope, then the present invention also intends to include these modifications and variations.

Claims

1. An orthodontic appliance, characterized in that: The invention comprises a main body and a traction component, a transmission component and a place-occupying component which are independently arranged from each other, wherein the traction component is detachably connected to the main body and / or the transmission component to realize switching between a working state and a non-working state; the transmission component and the place-occupying component are arranged on the main body, the transmission component is connected to the place-occupying component in a transmission manner, and the main body is provided with a groove, and when it is necessary to change the effective space of the groove, the traction component is connected to the transmission component in a transmission manner, thereby driving the place-occupying component to at least partially enter or exit the groove or move in the groove along the groove width direction to change the effective space of the groove; and in the process of driving the place-occupying component to move, the traction component does not switch its state; the transmission component is provided with a transmission adapting position, and correspondingly, the traction component is provided with an access end, and when the access end of the traction component is docked with the transmission adapting position, the traction component is linked with the transmission component; when the transmission component is connected to the access end of the traction component, and the access end of the traction component is not docked with the transmission adapting position, the traction component is not linked with the transmission component.

2. The orthodontic appliance according to claim 1, wherein: The transmission adapting position is a convexity, an elastic buckle, a buckle position, a thread, a protrusion or a hole with a non-circular cross section.

3. The orthodontic appliance according to claim 1, wherein: The main body is provided with an open cavity communicating with the groove, the place-occupying component is arranged in the groove or in the cavity and the groove, and the traction component is connected to the cavity and / or the transmission component.

4. The orthodontic appliance according to claim 3, wherein: The cavity is provided with a limiting structure, so that the transmission component can rotate in the cavity but cannot move axially; the space-occupying component is limited by the cavity and / or the groove and cannot rotate.

5. The orthodontic appliance according to claim 4, wherein: The place-occupying component is provided with a moving piece which is in the shape of a plate or a block. One side of the moving piece abuts against the bottom wall of the groove or the inner wall of the cavity so that the moving piece is restricted from rotating. The transmission component is threadedly connected to the moving piece.

6. The orthodontic appliance according to claim 3, characterized in that: The groove divides the main body into two working wings, and the cavity is arranged on any one of the working wings, or is arranged through the groove on the two working wings; the transmission component and the place-occupying component are arranged on the same working wing, or the transmission component and the place-occupying component are arranged on different working wings.

7. The orthodontic appliance according to claim 1, wherein: It also includes a bottom plate, which is arranged on the bottom surface of the main body; and a cover body, which is arranged on the surface of the main body.

8. An orthodontic system, characterized in that, The invention comprises an archwire and at least one orthodontic appliance as claimed in any one of claims 1 to 7.

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