CN113425431A - Appliance for orthodontics - Google Patents

Abstract

The invention discloses an appliance for orthodontics, which comprises a main body and a movable part, wherein the main body is provided with an arch wire groove, the movable part is matched with the main body and can move between an open position and a closed position relative to the main body, one of the movable part and the main body is provided with a stressed part and a locking part, the other of the movable part and the main body is provided with a first limiting part, when the movable part moves to the closed position, the first limiting part is locked with the locking part, then the movable part is fixed at the closed position, and when the stressed part is stressed, the locking part and the first limiting part can be driven to be unlocked, so that the movable part can move. The appliance opening process comprises two steps of unlocking and moving, the locking part replaces the locking mode of the elastic piece, the elastic piece is prevented from repeatedly rubbing with the movable part to cause loss of the orthodontic appliance during the opening and closing process of the movable part, the service life of the orthodontic appliance is prolonged, and the appliance opening mode is simple.

Description

Appliance for orthodontics

Technical Field

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

Background

Orthodontics means correcting teeth, relieving malocclusion and malformation, and orthodontics mainly adjusts coordination among facial bones, nerves and muscles of teeth and jaw faces through various correction devices, namely, abnormal relationships among upper and lower jaw bones, upper and lower teeth, teeth and jaws and nerves and muscles connecting the teeth and the jaws, and the final correction aim is to achieve balance, stability and beauty of the oral-jaw system. Orthodontic appliances of mainly using include support groove, buccal surface pipe etc. at present, and wherein the support groove is the fixed important part of correcting the technique, and the arch wire is through holding in the palm the groove and exert the power of correcting to the tooth, and the main effect in holding in the palm the groove lies in fixed arch wire to make the arch wire exert better and correct the power, in order to reach the purpose of just abnormal correction. Current self-ligating brackets generally include a bracket body and a removable cover, insert or clamp removably attached to the bracket body for opening and closing an archwire slot for receiving an archwire.

Patent CN201380070480.2 discloses a self ligating orthodontic bracket with a sliding cover comprising a body and a ligating archwire cover having a centrally disposed, forwardly extending locking member containing a flexible locking tab adapted to effect closing and opening of the archwire cover as the archwire cover moves from an open position toward a closed position and the locking structure mates with a protuberance on the body. The flexible locking connects for elastic joint among the technical scheme of this application, and the arch silk lid is when opening and closing, and locking structure need with the uplift on the main part friction repeatedly, and elastic material ubiquitous wear resistance can relatively poor problem, opens and shuts the back many times again, appears easily that the closure is not tight, the easy problem of opening automatically, to above-mentioned problem, this application provides a new wear resistance can be better, life is longer just abnormal utensil.

Disclosure of Invention

In view of the above technical problems, the present invention provides an appliance for orthodontic treatment, which has better wear resistance and longer service life.

The technical scheme adopted by the invention for solving the technical problem is as follows:

an appliance for orthodontics comprising a main body having an archwire slot and a movable part fitted with the main body and movable relative to the main body between an open position and a closed position, one of the movable part and the main body being provided with a force-receiving portion and a locking portion, the other of the movable part and the main body being provided with a first stop member, the first stop member being locked with the locking portion when the movable part is moved to the closed position and then securing the movable part in the closed position, the force-receiving portion being capable of driving the locking portion to unlock from the first stop member when the force is applied and then the movable part being capable of moving. The locking part is different from the flexible elbow in patent CN201380070480.2, the locking part itself does not elastically deform and does not need to be made of elastic material, the stressed part can drive the locking part to unlock with the first limiting part through moving, rotating, swinging or combination of two of them, the locking part is made of rigid material, so that the wear resistance of the locking part is better than that of the elastic material, and in the process of repeatedly moving the movable part, the locking part and the first limiting part rub against each other repeatedly and are still not easily worn, so that the service life of the appliance is longer, and the locking is more stable.

The structure of the first limiting part can be any structure capable of realizing limiting, such as a protrusion structure, a depression structure and the like. The opening position of the movable component is the state of opening the arch wire groove, and the arch wire can be placed in the arch wire groove at the moment; the closed position of the movable member, i.e., the closed position of the archwire slot, is where the archwire cannot be placed in the archwire slot. In the application, the movable part is moved from the closed position to the open state, and the two steps are divided into two steps, namely, in the first step, unlocking is carried out, force is applied to the stress part, the stress part is stressed to move, and then the locking part is driven to move and unlock with the first limiting part; and a second step of moving the movable member to the open position by continuing to apply a force to the force receiving portion or to the movable member. This is different from the way brackets on the market today are opened, where the brackets are all directly dragging a movable part, which moves against the blocking force of the locking element, and the movement and unlocking of the movable part takes place simultaneously.

The stressed part and the locking part can be directly connected or indirectly connected. When the locking part is arranged on the main body, the stress part is also arranged on the main body, and when the locking part is arranged on the movable part, the stress part is also arranged on the movable part. The force receiving part is a force application point for providing unlocking force for a doctor.

In some preferred embodiments, the force-bearing part can drive the locking part to move in the labial and lingual directions or the proximal and distal directions when being stressed. The movement mode of the locking part comprises movement, rotation, swing or the combination of the two, the movement direction is arbitrary, and any direction can be used as long as unlocking can be realized. Preferred directions of movement are the labial-lingual direction and the mesial-distal direction.

In a further embodiment, an active space is provided on at least one of the movable part and the main body, or between the movable part and the main body, and the force receiving portion and/or the locking portion are/is movable in the active space.

In some preferred embodiments, when the force-receiving part is subjected to a force, the force-receiving part and the locking part move in the same direction or in opposite directions.

In some specific embodiments, the movable member is provided with an invertible member, one side of the invertible member close to the archwire slot is the locking portion, and the side opposite to the locking portion is the stressed portion. The locking part and the stressed part are respectively arranged at two sides of the turnable member, and when downward pressure is applied to the stressed part, the locking part moves upwards to avoid the first limiting part, so that the movable part can move.

In a further preferred embodiment, an upper surface of the movable part forms an active space, the invertible member being located at the active space. The movable space provides turning space for the turnable piece.

In some further preferred embodiments, the force-receiving portion and the locking portion are connected by an intermediate portion, which is connected to the movable member to form a weakened position. Because the reversible piece is connected with the movable part through the weak position, the reversible piece can be turned by taking the weak position as an axis, when force is applied to the stress part, the locking part moves reversely to avoid the first limiting part, and then the movable part can move. After the force applied to the force-receiving portion is removed, the force-receiving portion and the locking portion return to the original state, and when the archwire slot needs to be closed again, the movable member is moved in the direction of the first limiting member, and when the locking portion abuts against the first limiting member, the movable member is pushed by the force continuously, the first limiting member is squeezed to enable the locking portion to move, then the locking portion is locked with the first limiting member, the locking portion is blocked by the first limiting member, and the movable member is fixed at the closed position.

In yet further preferred embodiments, the force-receiving portion and the locking portion are connected by an intermediate portion, the intermediate portion and the movable member are connected by a rotating shaft, and the instrument further includes an elastic member that restores the force-receiving portion or the locking portion to an original state. The middle part is connected with the movable component through a rotating shaft, the locking part and the stressed part can rotate around the selection shaft, when force is applied to the stressed part, the locking part moves reversely to avoid the first limiting part, and then the movable component can move. After the force applied to the force-receiving portion is removed, under the action of the reset force of the elastic piece, the force-receiving portion and the locking portion rotate to restore to the original state, when the archwire slot needs to be closed again, the movable component is moved towards the direction of the first limiting piece, when the locking portion abuts against the first limiting piece, the movable component is pushed by the force continuously, the first limiting piece can be extruded to enable the locking portion to move, the force-receiving portion extrudes the elastic piece to deform, the locking portion is locked with the first limiting piece, the elastic piece restores to the original state, and the movable component is fixed at the closed position. The position that the elastic component set up is different, and its mode of deformation is different, if the elastic component is located the left side of atress portion, when atress portion atress rotated to the left, the elastic component then atress compression or bending, if the elastic component is located the left side of closure portion, atress portion atress rotated to the left, closure portion rotated to the right, then the elastic component atress extension or unbend this moment.

In other specific embodiments, the device further includes an elastic member, when the movable member is located at the closed position and applies a force to the force-receiving portion, the elastic member is pressed to deform, the force-receiving portion drives the locking portion to move to unlock with the first limiting member, and then the movable member can move. The stressed portion and the locking portion may be disposed on the main body, or disposed on the movable component, the stressed portion is connected to the locking portion, the elastic member enables the stressed portion and the locking portion to recover to an original state when not stressed, when the archwire slot needs to be closed again, the movable component is moved in the direction of the first limiting member, when the locking portion abuts against the first limiting member, the force continues to be applied to push the movable component, the first limiting member is squeezed to enable the locking portion to move, the stressed portion squeezes the elastic member to deform, the locking portion is then locked with the first limiting member, the elastic member recovers to an original shape, and the movable component is fixed at a closed position.

In a further preferred embodiment, a movable space is provided on at least one of the movable member and the main body, or between the movable member and the main body, the force receiving portion or the locking portion is movable in the movable space, and the elastic member is provided in the movable space.

In some preferred embodiments, one of the movable member and the main body is provided with a second stopper that prevents the movable member from continuing to move after reaching the open position, the second stopper being capable of preventing the movable member from sliding off the main body. The structure of the second limiting part can be any structure capable of realizing limiting, such as a protrusion structure, a depression structure and the like.

In some preferred embodiments, the force-receiving portion is provided with a recess or hole for the opening tool to hook or press.

In some preferred embodiments, the movable member is a locking slider or a clamp, and the main body is provided with a sliding groove along which the movable member is movable between an open position and a closed position.

Has the advantages that: the application provides an appliance for orthodontics, including main part and movable part, the main part has the archwire groove, movable part with the main part cooperation and can for the main part move between open position and closed position, movable part with one of them is equipped with atress portion and locking portion in the main part, movable part with be equipped with first stopper on another one in the main part, when movable part moves to closed position, first stopper with the locking portion is locked, then will the movable part is fixed in the closed position, the atress portion can drive when being forced the locking portion with first stopper unlocks, then the movable part can move. The unlocking process of the appliance comprises two steps of unlocking and moving, the movable part and the main body are unlocked by the stress part capable of driving the locking part to move, the stress part moves under stress to drive the locking part to move, and the locking part and the first limiting part are unlocked. Firstly, the locking part replaces the locking mode of the elastic part, the repeated friction loss of the elastic part and the movable part in the opening and closing process of the movable part is avoided, the loss of the orthodontic appliance is reduced, the service life is prolonged, and secondly, the opening mode of the orthodontic appliance is simple.

The invention is further illustrated by the following figures and examples.

Drawings

Fig. 1 is a front view of an orthodontic appliance of embodiment 1.

Fig. 2 is a cross-sectional view a-a of fig. 1 with the orthodontic appliance closed.

Fig. 3 is a cross-sectional view a-a of fig. 1 with the orthodontic appliance open.

Fig. 4 is an exploded view of the orthodontic appliance of example 1.

Fig. 5 is a perspective structural view of a movable member of embodiment 1.

Fig. 6 is a cross-sectional view of the orthodontic appliance of example 2.

Fig. 7 is a front view of the orthodontic appliance of embodiment 3.

Fig. 8 is a cross-sectional view B-B of fig. 7 with the orthodontic appliance closed.

Fig. 9 is a cross-sectional view B-B of fig. 7 with the orthodontic appliance open.

Fig. 10 is an exploded view of the orthodontic appliance of example 3.

Fig. 11 is a perspective view of a movable member of embodiment 3.

Fig. 12 is a front view of the orthodontic appliance of embodiment 4.

Fig. 13 is a cross-sectional view through C-C of fig. 12 with the orthodontic appliance closed.

Fig. 14 is a cross-sectional view through C-C of fig. 12 with the orthodontic appliance open.

Fig. 15 is an exploded view of the orthodontic appliance of example 4.

Fig. 16 is a perspective view of an orthodontic appliance of example 6.

Fig. 17 is a front view of the orthodontic appliance of embodiment 6.

Fig. 18 is an exploded view of the structure of the orthodontic appliance of example 6.

Fig. 19 is a schematic view of a reference frame of a tooth.

Detailed Description

Unless otherwise indicated, in the following structural description, reference to the reference frame to the teeth is required to describe orthodontic brackets, and with particular reference to fig. 19, as used herein, terms such as labial, lingual, mesial, distal, occlusal, and gingival are used to describe orthodontic brackets are reference frames to corresponding teeth. However, embodiments of the invention are not limited to the chosen frame of reference and the terms described, as the orthodontic brackets may be used in other teeth and other orientations within the oral cavity. For example, orthodontic brackets may also be used bonded to the lingual surfaces of teeth and are within the scope of the invention. Those skilled in the art will appreciate that when there are variations in the reference frame, the descriptive terms used herein may not be directly applicable. However, embodiments of the invention are intended to be independent of position and orientation within the oral cavity and the relative terms used to describe the embodiments are merely intended to provide an unambiguous explanation of the embodiments in the drawings. Likewise, the relative terms labial, lingual, mesial, distal, occlusal and gingival are in no way intended to limit the invention to a particular position or orientation.

It is to be noted that the relative terms labial, lingual, mesial, distal, jaw plane and jaw-gum are the terms of art for orthodontic treatment. Taking the mandibular teeth as an example, the surface of the orthodontic bracket may be roughly divided into six planes. The face facing the lip is the labial side face of the orthodontic bracket, the face facing the tongue is the lingual side face of the orthodontic bracket, the labial side face is opposite to the lingual side face, and the direction formed by the labial side face and the lingual side face is also called the labial-lingual direction. The occlusal surface facing the upper teeth is the occlusal surface of an orthodontic bracket and can also be called as a jaw plane and a jaw end surface; the surface of the gum tissue facing the bonded teeth is the gum end surface of the orthodontic bracket; the direction in which the occlusal surface and the gingival surface form is also called the gingival jaw 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 mesial-distal direction.

And in the description of directions, such as the labial and lingual directions, it is generally referred to as bi-directional. For example, the lip-tongue direction refers to a single direction, i.e., a direction from the labial side to the lingual side, and whether or not a dash line is added is used as a distinction.

The axis inclination marking line refers to an inclination line which is arranged on the orthodontic bracket and has the same angle with the bracket axis inclination angle, and is used for more accurate positioning when a doctor uses the bracket to be bonded to a tooth surface.

Furthermore, the components and spaces described below are also described with reference to the reference system of the mandibular teeth, such as the gingival direction, jaw face, etc. of a component, but without limitation to the component and space.

Example 1:

referring to fig. 1-4, the present embodiment provides an appliance for orthodontic treatment, including a body 100 having an archwire slot 110 therethrough in a generally mesial-distal direction, and a movable member 200 engaged with the body 100 and movable relative to the body 100 between an open position and a closed position. With the movable member 200 in the open position, an archwire can be placed into the archwire slot 110, and with the movable member in the closed position, an archwire cannot be placed into or removed from the archwire slot 110. One of the movable component 200 and the main body 100 is provided with a force-receiving portion 210 and a locking portion 220, in this embodiment, the movable component 200 is provided with the force-receiving portion 210 and the locking portion 220, the force-receiving portion 210 and the locking portion 220 can swing in the labial-lingual direction, and the locking portion 220 is connected to the force-receiving portion 210.

Referring to fig. 2-3, fig. 2 is a sectional view taken along a-a of fig. 1 when the orthodontic appliance is in a closed state, fig. 3 is a sectional view taken along a-a of fig. 1 when the orthodontic appliance is in an open state, a first limiting member 120 is disposed on the other one of the movable member 200 and the main body 100, in this embodiment, the first limiting member 120 is disposed on the main body 100 and is a convex structure, the movable member 200 is disposed with a convex structure matching the first limiting member 120, in other embodiments, the first limiting member 120 may also be another structure such as a concave structure, and the movable member 200 may also be another structure such as a concave structure, a ring structure, etc. matching the first limiting member 120. When the movable member 200 moves to the closed position, the first stopper 120 locks with the latch 220, and then fixes the movable member 200 at the closed position, in this embodiment, the latch 220 is snapped with the main body 100. The locking portion 220 does not elastically deform itself, and need not be made of an elastic material, the force-receiving portion 210 can drive the locking portion 220 to be unlocked from the first limiting member by moving, rotating, swinging, or a combination thereof, in this embodiment, when a downward force is applied to the force-receiving portion 210, the force-receiving portion 210 drives the locking portion 220 to swing downward. The locking portion 220 is made of a rigid material, so that the wear resistance of the locking portion is better than that of an elastic material, and the locking portion 220 and the first limiting member 120 are not easily worn due to repeated friction during repeated movement of the movable member 200, so that the appliance has a longer service life and is more stable in locking.

An activity space 400 is provided between the movable member 200 and the main body 100, and the force receiving portion 210 and the locking portion can move in the activity space 400.

The locking portion 220 can be unlocked from the first limiting member 120 by swinging, and then the movable member 200 can move. In this embodiment, the apparatus further includes an elastic member 300, when the force is applied to the force-receiving portion 210, the elastic member 300 is pressed to deform, the force-receiving portion 210 drives the locking portion 220 to move away from the limiting region 130, so as to unlock with the first limiting member 120, and then the movable component 200 can move, and after the force applied to the force-receiving portion 210 is removed, the process of resetting the elastic member 300 drives the force-receiving portion 210 and the locking portion 220 to recover to the original state. The elastic member 300 is disposed in the activity space 400. In this embodiment, the elastic member 300 is fixedly connected to the movable member 200, and further, a guide groove 140 may be disposed on a surface of the main body 100 facing the movable member 200 to prevent the elastic member 300 from being tilted due to repeated movement of the movable member 200, thereby providing a moving space for the elastic member 300. In the present application, the elastic member 300 is a spring structure, and in other embodiments, the elastic member 300 may be any structure as long as it can provide a restoring force to the original state of the stressed portion 210, and the specific position of the elastic member can be adjusted. In other embodiments, the elastic member may be fixedly connected with the main body, or may be directly placed on the main body, and these embodiments are only conventional alternatives of this embodiment and still fall within the protection scope of this application.

The movable member 200 is a locking slider, a sliding groove 150 is formed on the main body 100, and the movable member 200 can move between an open position and a closed position along the sliding groove 150. In other embodiments, the movable member may be a clamp structure, and the solution is still possible. One of the movable component 200 and the main body 100 is provided with a second limiting member, in this embodiment, the second limiting member is a side wall of the guide groove 140, and after the movable component 200 moves to the open position, the elastic member 300 abuts against the side wall of the guide groove 140, so that the movable component 200 can be prevented from continuously moving to slide off the main body 100 after reaching the open position.

The upper surface of the force-receiving portion 210 is provided with a recess 230, and the recess 230 is used for being hooked by an opening tool and used for being dragged by the tool to the movable member 200.

Example 2:

referring to fig. 6, the present embodiment provides an appliance for orthodontic treatment, which has substantially the same structure as embodiment 1 except that: including being used for the bearing the supporting portion 151 of movable part 201, elastic component 301 is located the below of supporting portion 151, when movable part 201 is located the closed position and need opens, to atress portion 211 applys the holding power down, atress portion 211 extrudees supporting portion 151, supporting portion 151 extrudees elastic component 301 warp, atress portion 211 drives locking portion 221 moves down, then locking portion 221 leaves spacing district, with first locating part 121 unblock. A movable space 401 is arranged between the movable part 201 and the main body 101, and the locking part 221 can move along the lip and tongue direction in the movable space 401. More specifically, the supporting portion 151 includes a protruding portion 161, the main body is provided with a recessed portion 171, the elastic member 301 is disposed in the recessed portion 171, the protruding portion 161 is inserted into the recessed portion 171 and contacts with the elastic member 301, and the supporting portion 151 can also move along the labial-lingual direction.

Example 3:

referring to fig. 7 to 11, fig. 7 is a front view of an orthodontic appliance of embodiment 3, fig. 8 is a sectional view of B-B in fig. 7 in a closed state of the orthodontic appliance, fig. 9 is a sectional view of B-B in fig. 7 in an open state of the orthodontic appliance, fig. 10 is an exploded view of the orthodontic appliance of embodiment 3, and fig. 11 is a perspective view of a movable member of embodiment 3, and this embodiment provides an appliance for orthodontic treatment including a body 102 having a archwire slot 112 extending therethrough in a generally mesial-distal direction, and a movable member 202 engaged with the body 102 and movable between an open position and a closed position relative to the body 102. The main body 102 is provided with a stress part 212 and a locking part 222 which are connected, the movable component 202 is provided with a first limiting member 122, when the movable component 202 moves to the closing position, the first limiting member 122 is locked with the locking part 222, so that the movable component 202 is fixed at the closing position, the locking part 222 can leave the limiting area 132 by moving along the tongue and lip direction, and then the movable component 202 can move.

The main body 102 is provided with a moving space 402, the force-receiving portion 212 and the locking portion 222 can move in the moving space 402 along the lip-tongue direction, and when a downward force is applied to the force-receiving portion 212, the force-receiving portion 212 moves downward to drive the locking portion 222 to move downward, and then the locking portion is unlocked from the first limiting member 122.

The orthodontic appliance further comprises an elastic member 302, wherein the elastic member 302 is located below the force-receiving portion 212, when a downward force is applied to the force-receiving portion 212, the elastic member 302 deforms, the force-receiving portion 212 drives the locking portion 222 to move downward to unlock the first limiting member 122, and then the movable portion 202 can move. When the force is removed, the elastic member 302 returns to its original shape, and drives the locking portion 222 and the force-receiving portion 212 to return to their original positions.

More specifically, referring to fig. 10, the main body 102 includes a first main body 142 and a second main body 152 on opposite sides of the archwire slot 112, the first main body 142 defines a sliding slot 262, and the movable member 202 is movable along the sliding slot 262 between an open position and a closed position. The second body portion 152 is provided with a moving space 402, the force receiving portion 212, the locking portion 222 and the elastic member 302 are disposed in the moving space 402, the proximal surface and the distal surface of the force receiving portion 212 are both provided with a limiting protrusion 192, the side wall of the groove 172 is provided with a mounting groove 402 for mounting the limiting protrusion 192 and a guide groove 502 matched with the limiting protrusion 192, the limiting protrusion 192 can be mounted on the body 102 from the mounting groove 402 along the gum direction, and the limiting protrusion 192 can move in the guide groove 502 along the lip-tongue direction. The mounting groove 402 is communicated with the guide groove 502, and the guide groove 502 and the limiting protrusion 192 are matched to fix the force-bearing part 212 on the main body 102. The bottom of the movable space 402 is provided with an accommodating cavity 182, the elastic member 302 is placed in the accommodating cavity 182, the elastic member 302 abuts against the lower surface of the stressed portion 212, when the stressed portion 212 is stressed and pressed down, the elastic member 302 is extruded and deformed, and when the external force is removed, the stressed portion 212 moves upwards to restore the original position under the restoring force of the elastic member 302.

The force-receiving portion 212 is connected to the locking portion 222, the elastic member 302 provides a restoring force for the force-receiving portion 212, when the archwire slot 112 needs to be closed again, the movable member 202 is moved toward the first limiting member 122, when the locking portion 222 abuts against the first limiting member 122, the movable member 202 is pushed by the force, the first limiting member 122 is pressed to move the locking portion 222 downward, the force-receiving portion 212 presses the elastic member 302 to deform, the locking portion 222 enters and then locks with the first limiting member 122, and the movable member 202 is fixed at the closed position.

In this embodiment, the elastic member 302 is fixedly connected to the main body 102, and in some other embodiments, can be directly placed into the accommodating cavity 182.

Referring to fig. 11, fig. 11 is a perspective view of the movable member of embodiment 3, a second limiting member 242 is disposed on the movable member 202, the second limiting member 242 prevents the movable member 202 from moving after reaching the open position, and the second limiting member 242 can prevent the movable member 202 from sliding off the main body 102. The second limiting member 242 may have any structure capable of achieving limiting, such as a protrusion, a recess, and the like, and in this application, the protrusion is disposed on a surface of the movable component 202 facing the main body 102.

The upper surface of the force-bearing part 212 is provided with a recess for aligning and applying force to the opening tool.

Example 4:

referring to fig. 12-15, the present embodiment provides an appliance for orthodontic treatment comprising a body 103 having an archwire slot 113 therethrough in a generally mesial-distal direction and a movable member 203, the movable member 203 being engaged with the body 103 and movable relative to the body 103 between an open position and a closed position. The movable part 203 is provided with a reversible piece 223, the reversible piece 223 comprises a force-bearing part 233 and a locking part 243, the locking part 243 is arranged on one side of the reversible piece 223 close to the arch wire groove 113, and the force-bearing part 233 is arranged on the side opposite to the locking part 243.

The main body 103 is provided with a first stopper 123, and when the movable member 203 moves to the closed position, the first stopper 123 is locked with the locking portion 243, so as to fix the movable member 203 at the closed position. The locking portion 243 can move away from the limiting region, and then the movable part 203 can move. The locking portion 243 and the force-receiving portion 233 are two sides of the invertable member 223, respectively, and when a downward pressure is applied to the force-receiving portion 233, the locking portion 243 swings upward to avoid the first limiting member 123, so that the movable member 203 can move. In the present embodiment, the locking portion 243 can swing along the direction only by applying a force in the labial-lingual direction, because the joint surface of the orthodontic appliance and the tooth is substantially parallel to the gingival-maxillary direction, i.e. substantially perpendicular to the labial-lingual direction, the force in the labial-lingual direction does not generate a static friction force on the joint surface of the orthodontic appliance and the tooth, the joint strength of the orthodontic appliance and the tooth is not affected, and no special tool is required for applying the force in the labial-lingual direction.

The upper surface of the moving body 213 forms an active space 403, and the invertible member 223 is located at the active space 403. The active space 403 provides a space for the invertible member 223 to invert. The locking portion 243 and the force-receiving portion 233 are connected by the middle portion 263, and the middle portion 263 is connected to the moving body 213 to form a weak portion 273. Since the invertible member 223 is coupled to the moving body 213 through the weak portion 273, the invertible member 223 can be inverted and can be automatically restored to its original state. When a downward force is applied to the force-receiving portion 233, the locking portion 243 swings upward to avoid the first limiting member 123, and the locking portion 243 and the force-receiving portion 233 move in opposite directions. After the downward pressure applied to the force-receiving portion 233 is removed, the force-receiving portion 233 and the locking portion 243 are restored to their original positions, and when the archwire slot 113 needs to be closed again, the movable member 203 is moved in the direction of the first retaining member 123, and when the locking portion 243 abuts against the first retaining member 123, the movable member 203 is pushed by the force, and the first retaining member 123 is pressed to swing the locking portion 243, so that the locking portion 243 is locked with the first retaining member 123, and the movable member 203 is fixed to the closed position.

The movable main body 213 is provided with a second stopper 283, the second stopper 283 prevents the movable member 203 from moving continuously after reaching the open position, the second stopper 283 can prevent the movable member 203 from sliding off the main body 103, and the main body 103 is provided with a guide groove 143 for the second stopper 203 to move.

Example 5:

this example provides an orthodontic appliance having a structure substantially the same as that of example 4 except that: the middle part is connected with the movable main body through a rotating shaft, and an elastic part is arranged below the stress part. The locking portion and the force-receiving portion are rotatable about the rotation axis, and when a downward force is applied to the force-receiving portion, the locking portion swings upward to avoid the first limiting member, so that the movable member can move. After the downward force applied to the stressed portion is removed, the stressed portion and the locking portion are restored to the original positions under the action of the reset force of the elastic piece, when the arch wire groove needs to be closed again, the movable component is moved towards the first limiting piece, when the locking portion abuts against the first limiting piece, the force is continuously applied to push the movable component, the first limiting piece can extrude the locking portion to swing, the stressed portion extrudes the elastic piece to deform, the locking portion enters and then is locked with the first limiting piece, and the movable component is fixed at the closed position.

Example 6:

referring to fig. 16-18, the present embodiment provides an appliance for orthodontics, comprising a main body 105 and a movable member, wherein the main body 105 has an archwire slot, the movable member is engaged with the main body 105 and can move between an open position and a closed position relative to the main body 105, an invertible member is arranged on the movable member 205, the invertible member comprises a force-receiving portion 215, an intermediate portion 235 and a locking portion 225, one side of the invertible member near the archwire slot is the locking portion 225, the opposite side of the invertible member to the locking portion 225 is the force-receiving portion 215, the force-receiving portion 215 is connected with the locking portion 225 through the intermediate portion 235, a first stopper 125 is arranged on the main body, and when the movable member moves to the closed position, the first stopper 125 restricts the locking portion 225 to a stopper region 135, the first retaining member 125 locks with the locking portion 225, and then fixes the movable member 205 at the closed position, when the force receiving portion 215 is applied with a force, the force receiving portion 215 drives the locking portion 225 to move away from the retaining region 135, and then the movable member 205 can move. In this embodiment, the locking portion 225 is movable in the proximal-distal direction.

The movable body 205 of the movable member is provided with a first movable space 255, the locking portion 225 can move in the first movable space 155, the body 105 is provided with a second movable space 155, and the force receiving portion 215 can move in the second movable space 255. The middle portion 235 is connected to the moving body 205 through a rotating shaft 405, and the force receiving portion 215 is oppositely movable to the locking portion 225. In this embodiment, the first movable space 255 is a groove, a side wall of the groove forms an included angle with the force-receiving portion 215, when the cover needs to be opened, the probe is inserted into a gap between the side wall of the groove and the force-receiving portion 215, and is pulled down along the gingival-maxillary direction, so that the force-receiving portion 215 and the locking portion 225 rotate, then the locking portion 225 leaves the limiting region 135, the locking portion 225 is unlocked from the first limiting member 125, and the movable member 205 can be moved only by pulling down the probe, so that the archwire slot is opened.

The orthodontic appliance further comprises an elastic element 305, the elastic element 305 is arranged in the second movable space 255, the elastic element 305 abuts against the force-bearing part 215 to provide a restoring force for the force-bearing part 215, in the embodiment, the elastic element 305 deforms in a bending or compression mode, in other embodiments, the elastic element can also abut against the locking part to provide a restoring force for the locking part, and the deformation of the elastic element can be straightening or expanding.

When the movable member 205 is in the closed position, when a force is applied to the force-receiving portion 215, the elastic member 305 is pressed to deform, the force-receiving portion 215 drives the locking portion 225 to rotate and unlock the first stopper 125, so that the movable member 205 can move, and after the force applied to the force-receiving portion 215 is removed, the elastic member 305 drives the force-receiving portion 215 and the locking portion 225 to return to the original state. When the archwire slot needs to be closed again, the movable component 205 is moved toward the first limiting member 125, when the locking portion 225 abuts against the first limiting member 125, a force is continuously applied to push the movable component 205, the first limiting member 125 is pressed to rotate the locking portion 215, the force receiving portion 215 presses the elastic member 305 to deform, the locking portion 225 is then locked with the first limiting member 125, the elastic member 305 recovers to its original shape, and the movable component 205 is fixed at the closed position.

The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (13)

1. An appliance for orthodontics, comprising a main body having an archwire slot and a movable part fitted to the main body and movable relative to the main body between an open position and a closed position, one of the movable part and the main body being provided with a force receiving portion and a locking portion, the other of the movable part and the main body being provided with a first stopper, the first stopper being locked with the locking portion when the movable part is moved to the closed position and then fixing the movable part in the closed position, the force receiving portion being capable of driving the locking portion to be unlocked from the first stopper when the force receiving portion is applied, and then being capable of moving the movable part.

2. The orthodontic appliance of claim 1, wherein the force receiving portion is capable of moving the locking portion in the labial-lingual direction or the mesial-distal direction when the force receiving portion is applied.

3. The orthodontic appliance of claim 1, wherein an active space is provided on at least one of the movable member and the main body, or between them, and the force receiving portion and/or the locking portion are movable within the active space.

4. The orthodontic appliance of claim 1, wherein the force receiving portion moves in the same direction or in opposite directions as the locking portion when the force receiving portion is subjected to a force.

5. The orthodontic appliance as claimed in any one of claims 1 to 4, wherein the movable member is provided with an invertible member, a side of the invertible member adjacent to the archwire slot is the locking portion, and a side opposite to the locking portion is the force receiving portion.

6. The appliance for orthodontic treatment of claim 5, wherein the upper surface of the movable member forms an active space, the invertible member being located at the active space.

7. The orthodontic appliance of claim 5 wherein the force receiving portion and the locking portion are connected by an intermediate portion that is connected to the movable member to form a weakened position.

8. The orthodontic appliance as claimed in claim 5, wherein the force receiving portion and the locking portion are connected by an intermediate portion connected to the movable member by a rotation shaft, the appliance further comprising an elastic member for restoring the force receiving portion or the locking portion to an original state.

9. The orthodontic appliance according to claim 3, wherein the appliance further comprises an elastic member, when the movable member is in the closed position and a force is applied to the force-receiving portion, the elastic member is pressed to deform, the force-receiving portion drives the locking portion to move to unlock with the first stopper, so that the movable member can move, and after the force applied to the force-receiving portion is removed, the elastic member is reset to drive the force-receiving portion and the locking portion to return to the original state.

10. The orthodontic appliance as claimed in claim 9, wherein a movable space is provided on at least one of the movable member and the body or between them, the force receiving portion or the locking portion being movable in the movable space, and the elastic member is provided in the movable space.

11. The appliance for orthodontic treatment according to any one of claims 1 to 4, wherein one of the movable member and the main body is provided with a second stop preventing the movable member from continuing to move after reaching the open position.

12. The orthodontic appliance according to claim 2 or 3, wherein the force receiving portion is provided with a recess or a hole for an opening tool to catch or press.

13. The orthodontic appliance of claim 1, wherein the movable member is a locking slider or a clamp, the body having a sliding slot along which the movable member is movable between an open position and a closed position.

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