WO2021175322A1

WO2021175322A1 - Orthodontic appliance

Info

Publication number: WO2021175322A1
Application number: PCT/CN2021/079399
Authority: WO
Inventors: 钟庭进; 徐梓恩; 吉利; 喻薇
Original assignee: 广州欧欧医疗科技有限责任公司
Priority date: 2020-03-06
Filing date: 2021-03-05
Publication date: 2021-09-10
Also published as: CN113349962A

Abstract

An orthodontic appliance, comprising a main body (100) and a movable component (200). The main body (100) is provided with a protruding portion (110) and an archwire groove (120) for accommodating an archwire. The movable component (200) is matched with the main body (100) and is movable between an open position and a closed position relative to the main body (100); an accommodation cavity (210) is provided on the movable component (200), and the protruding portion (110) is received within the accommodation cavity (210), a locking member (301) or a locking structure is placed within the accommodation cavity (210); and the locking member (301) or the locking structure comprises a movable end; when the locking member (301) or the locking structure is bent, retracted or swings, the movable end is driven to move; and as the locking member or the locking structure is provided with the movable end, when the movable component (200) is moved, the force application is soft, and the operation is easy.

Description

An orthodontic appliance

Technical field

The invention relates to the technical field of orthodontic appliances, in particular to an orthodontic appliance.

Background technique

At present, for dental or facial problems such as crowded dentition, buck teeth, misalignment of teeth, and malocclusion, orthodontists use orthodontic instruments to treat patients. Orthodontic instruments such as brackets and buccal tubes are orthodontic The main component of the treatment device. In conventional orthodontic treatment, the orthodontist pastes the brackets on the teeth of the patient and puts the arch wire into the arch wire slot of the bracket. The arch wire applies corrective force to the teeth through the bracket to move the teeth to the correct position. Location. The traditional bracket uses a ligature to keep the archwire in the archwire slot of each bracket. Now it has been developed into a self-contained archwire that uses movable parts such as latches or sliders to hold the archwire in the archwire slot of the bracket. Lock the brackets. At present, self-locking brackets have been successful in the market, but the structure of the brackets still needs continuous improvement to improve its function, stability and manufacturing cost.

At present, most of the self-locking brackets on the market are equipped with elastic parts to lock the moving position of the cover. Usually the elastic parts are fixed at both ends, or connected or pressed against the main body, or connected with the cover. Or tighten, when the cover needs to be moved, the middle section is flexed or deformed to unlock, because the two ends of the elastic piece are fixed, the middle section of the elastic piece needs to be flexed or deformed with greater force and more difficult to install. The brackets are pasted on the teeth of the patient. If the force required to unlock is large, on the one hand, it will increase the difficulty for the doctor to move the cover and prolong the treatment time of the patient, which will make the patient feel bad. Excessive force when covering the body can easily cause the brackets to fall off the teeth.

The purpose of this application is to provide an orthodontic appliance that is easy to install and easy to open and operate.

Summary of the invention

In view of the above technical problems, the present invention provides an orthodontic appliance that is easy to install and easy to open and operate.

The technical solution adopted by the present invention to solve the technical problem is:

An orthodontic appliance, comprising a main body and a movable part, the main body having a protrusion and an archwire groove for accommodating an archwire, the movable part is matched with the main body and can be in an open position relative to the main body To move between and the closed position, the movable component is provided with an accommodation cavity, the protrusion is received in the accommodation cavity, a locking member is placed in the accommodation cavity, and the locking member includes a retractable portion, The locking member includes a movable end, the contractible part can contract and expand and cooperate with the protruding part to fix the movable component in at least a closed position, and when the contractible part is contracted, the movable end is driven to move. The orthodontic appliance can be a bracket or a buccal tube. The locking piece of the orthodontic appliance used to lock the movable part has a movable end. When the movable part needs to be moved, force is applied to the locking part. Since one end is movable, it will be more contracted if the force is applied on the one hand. The movable part can be opened easily and gently, and the operation is easy; on the other hand, only the locking part needs to be put into the containing cavity, and the locking part and the movable part do not need to be welded, making it easier to manufacture and install. Unlike most self-locking brackets currently on the market, the locking piece is arranged in the accommodating cavity of the movable part, and there is no need to provide a recess on the main body, which simplifies the structure, simplifies the structure of the orthodontic appliance, and reduces the production cost. The locking member is arranged in the accommodating cavity of the movable member, and the locking member is limited to a smaller space, which can improve its stability, making the movable member open and close more times and more stable. CN107714205B and other similar existing technologies rely solely on the bending and deformation of the elastic shaft or the elastic body to control the movement of the movable part and the self-locking of the limit. The elasticity is determined by the elastic properties of the elastic body itself. The performance is difficult to adjust, and the control force of the position locking switch of the movable part is determined by elasticity. Therefore, the control of the self-locking switch of CN107714205B and similar prior art is difficult to adjust, but this solution uses a locking piece The shrinkable part of the slab is matched with the rigid protrusion. The shrinkable part shrinks and deforms to provide elasticity. The elasticity is more formed by a spring structure, rather than relying solely on the elastic properties of the material itself, so this solution can produce softer elasticity. Moreover, the control force value of the position lock of the movable part can also be finely adjusted and controlled by adjusting the specific row shape, size, thickness, etc. of the contractible part.

The locking member includes a retractable part, and the entire locking member may be a retractable member, or only a part of the locking member may be retractable, both of which can realize self-locking control of the movable part. When the movable component is in the open position, the archwire can be put into the archwire groove, and when the movable component is in the closed position, the archwire put in the archwire groove cannot be removed from the archwire groove. Take it out.

In some preferred embodiments, the locking member includes a blocking part, and when the movable part is in the closed position, the blocking part abuts against the protruding part, and then blocks the movement of the movable part. The orthodontic appliance needs to stably fix the archwire in the archwire groove during use. When the movable part is in the closed position, it means the position where the archwire groove is closed. The blocking part provided on the locking member can stably maintain the movable part in the closed position, that is, the orthodontic appliance can stably fix the archwire in the archwire groove. The blocking portion may be a restriction member such as a recess or a protrusion, or the portion contacted by the protrusion may form an angle with the moving direction of the movable component, which can also block the movement of the protrusion.

In some preferred embodiments, the contractible part can contract in the mesio-distal direction. The contractible part can contract in the mesio-distal direction, that is, move in a direction that avoids the movement of the movable part. When you want to move the movable part, apply force to the movable part, and then The movable part squeezes the contractible part, and the contractible part contracts in the mesio-distal direction to open the moving channel for the movable part, so that the movable part can move. After the movable part is removed, the contracted part is rebounding again. Expand back to the original position.

In some preferred embodiments, the contractible portion is in the form of "N", "M", "π", "匚", "C" in a cross section that is substantially parallel to the labial and tongue direction or the jaw-gingival direction. Any one of type, "S" type, and "H" type. When the section of the contractible part in the jaw-gingival direction is "N", "M", "π", "匚", "C", "H", or "S", from Looking in the direction of the lips and tongue, the contractible part is in the shape of "N", "M", "π", "匚", "C", "S" or "H"; When the cross section of the constriction in the lip and tongue direction is "N", "M", "π", "匚", "C", "S", or "H" shape, when looking from the lip and tongue direction, The shrinkable part may be in the shape of a pin or a sheet, and the cross-section is in the shape of "N", "M", "π", "匚", "C", "S" or "H". Type; the above two cases can realize the self-locking of the movable parts.

In some preferred embodiments, the accommodating cavity is provided on a surface of the movable component facing the protrusion.

In some preferred embodiments, the movable component is a locking slider.

The present invention also provides another orthodontic appliance, including a main body and a movable part, the main body having a protrusion and an archwire groove for receiving an archwire, the movable part is matched with the main body and can be opposed to The main body moves between an open position and a closed position, the movable part is provided with an accommodation cavity, the protrusion is received in the accommodation cavity, a locking structure is placed in the accommodation cavity, and the lock The structure includes a swingable element and an elastic element, the swingable element includes a movable end, the swingable element can swing and cooperates with the protrusion to fix the movable component in at least a closed position, and the elastic element is used for The restoring force is provided for the swingable member. The swingable member may be a single structural member, or a part of a structural member, and the locking structure may be formed by combining a separate swingable member with an elastic member that provides a restoring force for it, or it may be A structural member formed by connecting a rigid swingable member and an elastic part that provides a restoring force for it. As long as the locking structure includes a swingable part, it falls within the scope of protection of the present application. Because the swingable part has a swingable movable end, when the movable part needs to be moved, force is applied to the swingable part. Since one end of the movable part is movable, on the one hand, applying force to make the contraction easier and softer The movable part can be opened by applying force, and the operation is easy; on the other hand, the locking structure only needs to be placed in the accommodating cavity, and there is no need to weld the locking part with the movable part, making it easier to manufacture and install.

In some preferred embodiments, when the swingable member receives a force, the elastic member deforms, and then the swingable member swings. When the swingable member is not stressed, the elastic member is , The swingable member returns to its original position. The shape and structure of the elastic member can be arbitrary, as long as it can provide a restoring force for the swingable member. It is preferably a spring-type elastic member, that is, an elastic member that can be contracted.

In some preferred embodiments, in the initial state of the swingable member, the swingable member limits the protrusion to the limit area, and then fixes the movable component in the closed position, and the swingable member When the member is forced to swing, the protrusion is allowed to leave the limit area, and when the protrusion returns to the limit area, the swingable member returns to the initial state.

In some preferred embodiments, the swingable member is a plate-shaped member or a pin.

In some preferred embodiments, the initial state of the swingable member forms an angle with the direction in which the movable member moves, and then the swingable member limits the protrusion to a limit area to restrict its movement When the swingable member is forced to swing, the movement channel of the movable component is released, and then the movable component can move. In other embodiments, protrusions or depressions can also be provided on the swingable member to limit the protrusions to the limiting area.

The present invention also provides another orthodontic appliance, including a main body and a movable part, the main body having a protrusion and an archwire groove for receiving an archwire, the movable part is matched with the main body and can be opposed to The main body moves between an open position and a closed position, the movable part is provided with a containing cavity, the protrusion is received in the containing cavity, and a locking member is provided in the containing cavity, and the locking The locking member is a pin, and the locking member includes a movable end. The locking member can be bent and cooperates with the protrusion to fix the movable member in at least a closed position. When the locking member is bent, the movable end is driven to move.

In some preferred embodiments, in the initial state of the locking member, the locking member limits the protrusion to the limit area, and then fixes the movable part in the closed position, and the locking member is forced When bending, the protrusion is allowed to leave the limiting area.

In some preferred embodiments, the initial state of the locking member forms an angle with the direction in which the movable member moves, and then the locking member limits the protrusion to a limit area, restricts its movement, and locks The member is forced to bend to release the movement channel of the movable member, and then the movable member can move. In other embodiments, protrusions or depressions may also be provided on the locking member to limit the protrusions to the limiting area.

The present invention will be further described below with reference to the drawings and embodiments.

Description of the drawings

FIG. 1 is a front view of the orthodontic appliance of Example 1. FIG.

Fig. 2 is an exploded structural diagram of the orthodontic appliance in Example 1.

Fig. 3 is a right side view of the orthodontic appliance in Example 1.

Fig. 4 is a cross-sectional view of A-A in Fig. 3 when the orthodontic appliance is closed.

Fig. 5 is a cross-sectional view of A-A in Fig. 3 when the orthodontic appliance is opened.

Fig. 6 is a three-dimensional structural view of the movable part of the first embodiment.

Fig. 7 is a cross-sectional view of the orthodontic appliance of Example 2 in a closed state.

Fig. 8 is an exploded structural diagram of the orthodontic appliance of Example 3.

9 is a cross-sectional view of the orthodontic appliance of Example 3. FIG.

Fig. 10 is a cross-sectional view of the orthodontic appliance of Example 4 in a closed state.

Fig. 11 is a cross-sectional view of the orthodontic appliance of Example 4 in an opened state.

Fig. 12 is a cross-sectional view of the orthodontic appliance of Example 5 in a closed state.

Fig. 13 is a cross-sectional view of the orthodontic appliance of Example 6 in a closed state.

Fig. 14 is a cross-sectional view of the orthodontic appliance of Example 6 in an opened state.

Figure 15 is a schematic diagram of a tooth reference system.

Detailed ways

In the following structural description, you need to use the reference frame of the teeth to describe the orthodontic brackets. For details, see Figure 15. The ones used here are used to describe the orthodontic brackets such as labial, lingual, mesial, and orthodontic brackets. The terms distal, occlusal, and jaw-gingival are the reference frame of the corresponding teeth. However, the embodiments of the present invention are not limited to the selected reference frame and the described terminology, because the orthodontic brackets can be used for other teeth in the oral cavity and in other directions. For example, orthodontic brackets can also be used by bonding to the lingual surface of teeth, which also falls within the scope of the present invention. Those skilled in the art will realize that when there are changes in the reference frame, the descriptive terms used herein may not be directly applied. However, the embodiments of the present invention are intended to be independent of the position and direction in the oral cavity and the relevant terms used to describe the embodiments are merely to provide a clear description of the embodiments in the drawings. Likewise, the related terms labial, lingual, mesial, distal, occlusal, and jaw-gingival will never limit the present invention to a specific position or direction.

It should be noted that the related terms labial, lingual, mesial, distal, jaw plane, and jaw-gum are industry terms for orthodontic treatment. Take the mandible teeth as an example, the surface of the orthodontic bracket can be roughly divided into six faces. The side facing the lips is the labial side of the orthodontic bracket, and the side facing the tongue is the lingual side of the orthodontic bracket. The labial side and the lingual side face each other. The direction formed by the labial side and the lingual side is also called the labial and tongue direction. The surface facing the occlusal surface of the maxillary teeth is the occlusal surface of the orthodontic bracket, which can also be called the jaw plane or the maxillary end surface; the surface facing the gum tissue of the teeth to which it is bonded is the gingival end surface of the orthodontic bracket; the occlusal surface and The gingival end faces are opposite, and the direction formed by the occlusal surface and the gingival surface is also called the jaw-gingival direction. The surface of the tooth facing the midline of the tooth is the mesial surface, the surface opposite to the mesial surface is called the distal surface, and the direction formed by the mesial surface and the distal surface is called the mesio-distal direction.

And in the description of the direction, such as the direction of the lips and tongue, it generally refers to two directions. And such as the lip-tongue direction, specifically refers to a single direction, that is, the direction from the side of the lip to the side of the tongue, and it is distinguished by whether a short horizontal line is added.

The axis inclination marking line refers to an inclination line set on the orthodontic bracket with the same inclination angle as the bracket axis, which is used for more precise positioning when the doctor uses the bracket to bond to the tooth surface.

Furthermore, the components and spaces described below are also described by referring to the reference system of the mandibular teeth, such as the jaw-gingival direction of a certain component, the jaw end surface, etc., but it does not impose restrictions on the component and space.

Example 1:

Referring to Figures 1-3, Figure 1 is a front view of the orthodontic appliance in Example 1, Figure 2 is an exploded structural view of the orthodontic appliance in Example 1, and Figure 3 is a right side view of the orthodontic appliance in Example 1. The embodiment provides an orthodontic appliance, including a main body 100 and a movable part 200. The main body 100 has a protrusion 110 and an archwire groove 120 for accommodating an archwire. The movable part 200 is connected to the main body 100. Fits and can move between the open position and the closed position relative to the main body 100, the movable component 200 is provided with a receiving cavity 210, the protrusion 110 is received in the receiving cavity 210, and the receiving A locking member 300 is provided in the cavity 210, and the locking member 300 includes a retractable portion 310 that can expand and contract and cooperate with the protrusion 110 to fix the movable component 200 in at least a closed position. The orthodontic appliance can be a bracket or a buccal tube.

The locking member 300 includes a retractable part 310. The locking member 300 may be a retractable part as a whole, or may only include a part that is retractable, which can realize self-locking control of movable parts. In this embodiment In an example, the whole of the locking member 300 is a contractible part 310, that is, the whole is a contractible part.

Unlike most self-locking brackets currently on the market, the locking member 300 is provided in the accommodating cavity 210 of the movable component 200, and there is no need to provide a recess on the main body 100, which simplifies the structure of the orthodontic appliance and reduces the production cost. The locking member 300 is provided in the accommodating cavity 210 of the movable member 200, and the locking member 300 is confined in a smaller space, which can improve its stability, making the movable member 200 open and close more times and open and close more stably. Compared with simply relying on the elastic shaft or the bending deformation of the elastic body to control the movement of the cover and the self-locking of the limit, the solution that solely relies on the elastic properties of the elastic body itself to determine the elasticity, the position of the cover is locked by the control power of the switch It is difficult to adjust, but the solution described in this embodiment uses the retractable part 310 of the locking member 300 to cooperate with the rigid protrusion 110 to realize the self-locking of the movable part. The retractable part 310 shrinks and deforms to provide elasticity, which is more flexible. It is formed by a spring structure instead of solely relying on the elastic properties of the material itself, so this solution can produce softer elasticity, and the control force value of the position lock of the movable member 200 can also be adjusted by adjusting the specific row shape of the retractable part 310 , Size, thickness, etc. for fine adjustment control.

Referring to Figure 1, it can be seen that the movable component 200 is a locking slider, refer to Figures 4-5, Figure 4 is a cross-sectional view of AA in Figure 3 when the orthodontic appliance is closed, and Figure 5 is the orthodontic appliance in an open state In the AA cross-sectional view in FIG. 3, the movable component 200 is locked by the locking member 300 and the protrusion 110. The contractible part 310 can expand and contract in the mesio-distal direction, and can contract and release the moving path of the movable component 200. When you want to move the movable part 200, apply a force to the movable part 200, and then the movable part 200 squeezes the contractible part 310, and the contractible part 310 contracts in the mesio-distal direction to open the movable part 200 The moving channel allows the movable component 200 to move. After the movable component 200 is moved away, the contracted part expands back to its original position under the resilience force. It can be seen that the contractible part 310 is in the shape of "N" in the cross section in the jaw-gingival direction, and other shapes that can be contracted in the cross section can also be realized, such as "M", "π", "匚", "C" type, "S" type, etc. Similarly, the contractible portion 310 can also be "N", "M", "π", "匚", "C", "S", etc. in the cross-section in the lip and tongue direction. The contractible part 310 can expand and contract in the mesio-distal direction.

When the movable component 200 is in the open position, because the protrusion 110 is received in the accommodating cavity 210, during the sliding process of the movable component 200, the side wall of the accommodating cavity 210 will block the The protrusion 110 slides out therefrom, so the movable member 200 does not slide down from the main body 100. In this embodiment, the protrusion 110 is a cylindrical protrusion. In other embodiments, the protrusion 110 may be a protrusion of any shape.

2, the locking member 300 includes a blocking portion 320. When the movable member 200 is in the closed position, the blocking portion 320 blocks the movement of the protrusion 110. The orthodontic appliance needs to stably fix the archwire in the archwire slot 120 during use. When the movable member 200 is in the closed position, it means the position where the archwire slot 120 is closed. The blocking portion 320 provided on the locking member 300 can stably maintain the movable component 200 in the closed position, that is, the orthodontic appliance can stably fix the archwire in the archwire groove 120. The blocking portion 320 is concave or convex, and may also be other structures capable of blocking the movement of the movable component. In this embodiment, the shrinkable portion 310 is partially bent to form a protrusion.

Referring to Figure 6, Figure 6 is a three-dimensional structural view of the movable component of Embodiment 1. The dotted line in the figure is the protrusion 110, the movable component 200 is a locking slider, and the accommodating cavity 210 is provided in the movable component. 200 faces the surface of the protrusion 110.

Example 2:

Referring to Figure 7, Figure 7 is a cross-sectional view of the orthodontic appliance of Embodiment 2 in a closed state. This embodiment provides an orthodontic appliance whose structure is basically the same as that of Embodiment 1, except that the lock The blocking portion 321 on the member 301 is a recessed structure. When the movable member 201 is in the closed position, the protruding portion 111 is restricted to the recess, and a force is applied to the movable member 201. The protruding portion 111 squeezes the contractible part 311 of the locking member 301, and then the contractible part 311 contracts to release the movement channel of the protrusion 111. The other structure of this embodiment is basically the same as that of Embodiment 1, and the description will not be repeated.

Example 3:

8-9, FIG. 8 is an exploded structural view of the orthodontic appliance of Embodiment 3, and FIG. 9 is a cross-sectional view of the orthodontic appliance of Embodiment 3. This embodiment provides an orthodontic appliance, its structure and implementation Example 2 is basically the same, except that: the locking member 302 includes a retractable portion 312. In this embodiment, the entire locking member 302 is the retractable portion 312, and it can be seen that the retractable portion 312 The section 312 has a "C" shape in the lip and tongue direction, and other shrinkable cross sections can also be realized, such as "M", "π", "匚", "N", "S" In other words, the retractable portion 312 in the present application is a tubular pin, and the tubular pin has an opening extending in the axial direction, so that the tubular pin can be contracted when it is squeezed by a force. The other structure of this embodiment is basically the same as that of Embodiment 2, and will not be described repeatedly. The blocking portion 322 on the locking member 302 is a recessed structure.

Example 4:

10-11, Figure 10 is a cross-sectional view of the orthodontic appliance of Embodiment 4 in the closed state, and Figure 11 is a cross-sectional view of the orthodontic appliance of Embodiment 4 in the open state. This embodiment provides an orthodontic appliance , Including a main body 103 and a movable member 203, the main body 103 has a protrusion 113 and an archwire groove 123 for receiving the archwire, the movable member 203 is matched with the main body 103 and can be opposed to the main body 103 To move between the open position and the closed position, the movable member 203 is provided with a receiving cavity 213, the protrusion 113 is received in the receiving cavity 213, and the receiving cavity 213 is provided with a locking structure, so The locking structure includes a swingable member 403 and an elastic member 503. The swingable member 403 can swing and cooperate with the protrusion 113 to fix the movable member 203 in at least a closed position. The elastic member 503 is used for The swingable member 403 provides a restoring force. The swingable member 403 may be a single structural member, or a part of a structural member, and the locking structure may be formed by a combination of a separate swingable member 403 and an elastic member 503 that provides a restoring force for it. It may also be a structural member formed by connecting the swingable member 403 and the elastic portion 503 that provides the restoring force. As long as the locking structure includes a swingable part, it falls within the scope of protection of the present application. In this embodiment, the swingable member 403 and the elastic member 503 are welded to form a structural member.

When the swingable member 403 receives a force, the elastic member 503 contracts or bends, and then the swingable member 403 swings. When the swingable member 403 is not stressed, under the action of the elastic member 503, The swingable member 403 returns to its original position. The shape and structure of the elastic member 503 can be arbitrary, as long as it can provide the swingable member 403 with a restoring force. In this embodiment, the elastic member 503 is a retractable elastic member, and the figure shows a plate spring.

10, it can be seen that in the initial state of the swingable member, the swingable member 403 limits the protrusion 113 to the limit area, and then fixes the movable member 203 in the closed position, that is, to achieve The self-locking of the movable part 203 is shown in Fig. 11. When the swingable part 403 is forced to swing, the protrusion 113 is allowed to leave the limit area, so that the movable part 203 can be relative to the main body 103. When the movable component 203 moves, the side wall of the accommodating cavity 213 will block the protrusion 113 from sliding out, so the movable component 203 will not slide down from the main body 103. When the protrusion 113 returns to the limit area, the swingable member 403 returns to the initial state, and the movable member 203 is fixed in the closed position again.

As a preferred embodiment, the swingable member 403 may be a plate-shaped member or a pin. The plate-shaped member and pin have a simple structure and the lowest production cost. The initial state of the swingable member 403 and the movable member 203 move Is an included angle to limit the protrusion 113 to the limit area, that is, to realize the self-locking of the movable part 203. If the swingable part 403 is made into other shapes, it still meets the demand, the swingable part If 403 is parallel to the moving direction of the movable component 203, it can be realized by setting a limit protrusion or recess on the swingable member 403. It is also within the protection scope of this application.

Example 5:

Referring to Figure 12, Figure 12 is a cross-sectional view of the orthodontic appliance of Embodiment 5 in a closed state. This embodiment provides an orthodontic appliance whose structure is basically the same as that of Embodiment 4, except that: the elastic member 504 is a common compression spring, and one end of the compression spring is connected to one end of the swingable member 404. The other structure of this embodiment is basically the same as that of Embodiment 4, and the description will not be repeated.

Example 6:

Referring to Figures 13-14, Figure 13 is a cross-sectional view of the orthodontic appliance of Embodiment 6 in the closed state, and Figure 14 is a cross-sectional view of the orthodontic appliance of Embodiment 6 in the open state. This embodiment provides another orthodontic The appliance includes a main body 105 and a movable member 205, the main body 105 has a protrusion 115 and an archwire groove 125 for receiving an archwire, the movable member 205 is mated with the main body 105 and can be opposed to the main body 105 moves between an open position and a closed position. The movable part 205 is provided with a receiving cavity 215, the protrusion 115 is received in the receiving cavity 215, and a locking member 305 is provided in the receiving cavity 215 The locking member 305 is a pin, and the locking member 305 can be bent and cooperates with the protrusion 115 to fix the movable member 205 in at least the closed position. The locking member 305 is an elastic member. When its shape is a pin, its production cost is the lowest, which can effectively control the cost of the orthodontic appliance, making the appliance more acceptable in the market.

In the initial state of the locking member 305, the locking member 305 limits the protrusion 115 to the limit area, and then fixes the movable member 205 in the closed position, that is, realizes the self-locking of the movable member 205, When the locking member 305 is forced to bend, the protrusion 115 is allowed to leave the limiting area.

The initial state of the locking member 305 and the moving direction of the movable member 205 form an angle, and then the locking member 305 limits the protrusion 115 to the limit area to restrict its movement, and the locking member 305 is forced The bending releases the moving channel of the movable component 205, and then the movable component 205 can move to realize the opening of the archwire slot. In other embodiments, structures such as protrusions or depressions can also be provided on the locking member 305 to limit the protrusion 115 to the limiting area, which is also within the protection scope of the present application.

The present invention is not limited to the above-mentioned embodiments. If various changes or modifications to the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims of the present invention and equivalent technical scope, the present invention will also It is intended to include these changes and modifications.

Claims

An orthodontic appliance, which is characterized by comprising a main body and a movable part, the main body having a protrusion and an archwire groove for accommodating the archwire, and the movable part is matched with the main body and can be opposed to the The main body moves between an open position and a closed position, the movable component is provided with a receiving cavity, the protrusion is received in the receiving cavity, and a locking member is placed in the receiving cavity, and the locking member includes A retractable part, the locking member includes a movable end, the retractable part can contract and expand and cooperate with the protrusion to fix the movable component in at least a closed position, and when the retractable part contracts, the retractable part drives the Activity side activities.
The orthodontic appliance according to claim 1, wherein the locking member includes a blocking portion, and when the movable member is in the closed position, the blocking portion abuts against the protruding portion, and then blocks the movable Parts move.
The orthodontic appliance according to claim 1, wherein the contractible portion can contract in the mesio-distal direction.
The orthodontic appliance according to any one of claims 1 to 3, wherein the contractile part has an "N" shape, an "M" shape, and a "M" shape in a cross section that is substantially parallel to the labial and tongue direction or the jaw-gingival direction. Any of π" type, "匚" type, "C" type, "S" type, and "H" type.
The orthodontic appliance according to any one of claims 1 to 3, wherein the accommodating cavity is provided on a surface of the movable member facing the protrusion.
The orthodontic appliance according to any one of claims 1 to 3, wherein the movable component is a locking slider.
An orthodontic appliance, which is characterized by comprising a main body and a movable part, the main body having a protrusion and an archwire groove for accommodating the archwire, and the movable part is matched with the main body and can be opposed to the The main body moves between an open position and a closed position, the movable part is provided with a receiving cavity, the protrusion is received in the receiving cavity, and a locking structure is placed in the receiving cavity, and the locking structure includes A swingable piece and an elastic piece, the swingable piece includes a movable end, the swingable piece can swing and cooperates with the protrusion to fix the movable component in at least a closed position, and the elastic piece is used to The swingable member provides a restoring force.
The orthodontic appliance according to claim 7, wherein when the swingable member is stressed, the elastic member is deformed, and then the swingable member swings, and when the swingable member is not stressed, the elastic member is deformed. Under the action of the elastic member, the swingable member returns to its original position.
The orthodontic appliance according to claim 7, characterized in that, in the initial state of the swingable member, the swingable member limits the protruding portion to a limit area, and then fixes the movable member to In the closed position, when the swingable member is forced to swing, the protrusion is allowed to leave the limit area, and when the protrusion returns to the limit area, the swingable member returns to the initial state.
The orthodontic appliance according to claim 7, wherein the swingable member is a plate-shaped member or a pin.
7. The orthodontic appliance according to claim 7, wherein the initial state of the swingable member and the moving direction of the movable member form an angle.
An orthodontic appliance, which is characterized by comprising a main body and a movable part, the main body having a protrusion and an archwire groove for accommodating the archwire, and the movable part is matched with the main body and can be opposed to the The main body moves between an open position and a closed position, the movable part is provided with a receiving cavity, the protrusion is received in the receiving cavity, and a locking member is provided in the receiving cavity, and the locking member is A pin, the locking member includes a movable end, the locking member can be bent and cooperates with the protrusion to fix the movable member in at least a closed position, and when the locking member is bent, the movable end is driven to move.
The orthodontic appliance according to claim 12, characterized in that, in the initial state of the locking member, the locking member restricts the protruding portion to a limit area, and then fixes the movable member in the closed position When the locking member is bent under a force, the protrusion is allowed to leave the limiting area.
The orthodontic appliance according to claim 12, wherein the initial state of the locking member and the moving direction of the movable member form an angle.