JP3235550U - Variable groove time-sharing self-locking orthodontic bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a groove-variable time-sharing self-locking orthodontic bracket adapted to each stage of orthodontic treatment. SOLUTION: A bracket main body 1 and a bracket bottom plate 2 in contact with teeth are provided on the bottom of the bracket main body, the bracket main body has a groove 3 for attaching an arch wire, and the arch wire has a first arch wire and a second arch wire. The radial dimension of the first arch wire is smaller than the radial dimension of the second arch wire. The time-sharing self-locking unit includes an elastic clamp provided on the side wall of the groove, a dimensionally variable channel is formed between the elastic clamp 6 and the side wall of the groove, and the channel is such that the arch wire enters and exits the groove. It is adapted. The radial dimension of the first arch wire is smaller than the maximum passage dimension of the channel, and the radial dimension of the second arch wire is larger than the maximum passage dimension of the channel. [Selection diagram] Fig. 1

Description

The present invention relates to the field of orthodontic brackets for teeth, and particularly to the time-sharing self-locking orthodontic brackets with variable grooves.

Conventional orthodontic brackets for teeth are divided into two types, conventional ligation type brackets and self-locking type brackets, according to clinical ligation methods. The self-locking bracket uses the self-locking structure of the bracket instead of the conventional ligation operation to reduce the frictional force between the groove and the arch wire. The clinical operation is convenient and efficient, the orthodontic force is soft, and the teeth move quickly.

However, the self-locking brackets currently on the market have the following drawbacks. 1. Self-locking brackets are used for orthodontics using thin archwires in the first stage: badly misaligned teeth receive a large amount of force when the slide cover is closed with the archwires fully positioned. Too much loosened teeth, sticking root bones, increasing the risk of tooth root resorption and causing pain to the patient; 2, self-locking brackets used thick square archwires in the second stage When adjusting the root of the tooth, the size of the thick archwire must be smaller than the size of the groove in order to put the thick archwire in the groove (full size archwire is difficult to completely fit in the groove or orthodontic). Because the force is too great). This creates a gap between the inner wall of the groove and the thick arch wire. In addition, the current self-locking cover plate structure cannot fix the thick arch wire in the groove. That is, the gap between the thick arch wire and the groove cannot be eliminated. This directly affects the accurate representation of the bracket's preset data (torque, axial tilt, etc.) and affects the course and effectiveness of the treatment. 3. The self-locking structure of the bracket is complicated and requires a large space. Since the size of the self-lock itself is small, if the self-lock structure occupies a large space, the outer shape of the bracket wing becomes small and rounded, making it difficult to tie the ligature wire and the chain leather ring, which is the successor product. It causes problems in use. 4. The relatively complicated self-locking structure has high demands on the production process, and the phenomenon that the self-locking structure is too loose, tight, or easily damaged during use is likely to occur.

Also, in the second stage, when a relatively hard arch wire (including both square arch wire and circular arch wire) is inserted into the groove of the bracket, the teeth move the arch wire as a rail by the orthodontic force. When using a thick square arch wire, the gap between the square arch wire and the groove is small and the frictional force is large, so that the orthodontic force required to move the teeth is large. The advantage is that the crown and the root of the tooth are almost integrated and move synchronously, but the disadvantage is that the fixed source that is consumed is large (the tooth that you do not want to move is moved). On the contrary, when a thin circular arch wire is used, the gap between the circular arch wire and the groove is large and the frictional force is small, so that the orthodontic force required to move the tooth is small. The advantage is that the source of fixation that is consumed is small (the tooth that you do not want to move does not move much), but since the movement of the crown is larger than the movement of the root, it is possible to move the whole by making the root vertical in the later stage. There is a drawback. These two techniques have their own clinical strengths and weaknesses in orthodontics. The former typical technique is straight arch wire orthodontic technique, which has the advantage of relatively good control over tooth migration, but it is fixed because the anterior teeth tend to tilt toward the lips and cause overcapsular occlusion when aligning the dentition. It is often necessary to strengthen the source (to avoid moving teeth that you do not want to move as much as possible). Widely applied in the clinical practice of orthodontics. The latter typical technology is Tip-Edge technology, which moves the entire crown by moving the crown diagonally and then making the roots vertical. The advantage is that it generally does not require an additional source of fixation, but it has less clinical application due to the complexity of verticalization of the posterior root and torque control.

The present invention is a groove-variable time-sharing self-locking orthodontic bracket with an exquisite design and rational structure, with elastic clamps in the grooves of the bracket for each stage of orthodontic treatment and each type of arch wire. Take advantage of the strengths when applying and avoid the weaknesses.

In the first stage of orthodontic treatment, the doctor pushes the first arch wire into the groove. The operation is very easy. Also, the doctor is advised not to completely groov the archwire (clinically, the suspension can be ligated), and the teeth are excessive to prevent unnecessary damage and distress to the patient. The first arch wire is configured to automatically break through the elastic clamp and exit the groove when subjected to a high traction force. By further optimizing the structure, the groove becomes wider at the initial stage of straightening, the gap between the arch wire and the groove becomes larger, the movement of the arch wire along the width direction of the groove increases, and the near / far / to some extent Allows mid-tooth tilt, avoids anterior lip tilt and overcapsular occlusion, and consumes less fixation source (tooth that you do not want to move hardly moves). In addition, the compensating member is used at an early stage of orthodontics to reduce the depth of the groove, reduce the movement of the arch wire along the depth direction of the groove, and make it easier to correct the twist of the tooth.

In the second stage of orthodontic treatment, the second arch wire can push the elastic clamp directly into the groove, and the elastic clamp is located between the arch wire and the groove, which narrows the width of the groove and narrows the width of the groove and the arch wire and the groove. By eliminating the gap in the width direction of the tooth, the ideal Turkish axis tilt angle and position for the tooth can be obtained, the axis tilt angle and torque angle of the tooth can be accurately controlled, and the orthodontic effect is greatly improved.

In addition, the self-locking structure of the present embodiment is clever and practical, does not take up too much space, and the ligation wing structure of the present invention is no different from the conventional ligation bracket, and the ligation wire and the chain-shaped skin ring are arranged in clinical operation. Will be easier. The whole self-locking bracket structure is not very demanding on the production process, the self-locking structure is very stable and cost-effective, and it solves most of the problems of conventional self-locking rackets and straightening techniques.

The technical solution adopted by the present invention to solve the above technical problem is a groove-variable time-sharing self-locking orthodontic bracket, which has the following features.

As the bracket body, there is a bracket substrate that comes into contact with teeth at the bottom of the bracket body described above, a groove for attaching an arch wire is provided in the bracket body, and the arch wire has a first arch wire and a second arch wire. The radial dimension of one arch wire is smaller than the radial dimension of the second arch wire.

As a time-sharing self-locking unit, an elastic clamp provided on the side wall of the groove is included, and a dimensionally variable channel is formed between the elastic clamp and the side wall of the groove, in which the arch wire enters and exits the groove. The radial dimension of the first arch wire is smaller than the maximum passage dimension of the channel, and the radial dimension of the second arch wire is larger than the maximum passage dimension of the channel.

The elastic clamp has first and second actuation states. When in the first actuated state, the first archwire passes through the channel and enters the groove to form a self-lock. When in the second actuated state, the second arch wire presses the elastic clamp closer to the side wall of the groove, forming a non-self-lock.

In addition, the elastic clamp has a first pressure that restricts the movement of the first arch wire to the outside, and when the first arch wire is attached, the elastic clamp is pressed in a direction away from the groove, and the elastic clamp applies the second pressure. When the second pressure received by the elastic clamp exerts a traction force on the tooth and the second pressure reaches the upper limit of the allowable traction force of the tooth, the second pressure applied to the elastic clamp of the first arch wire is applied. The first arch wire, which is larger than the first pressure, comes out of the groove.
Further, the side wall of the groove is provided with a groove so as to increase the dimension in the width direction of the groove and increase the moving range of the first arch wire along the width direction of the groove.

When a compensating member is provided on the bottom surface of the elastic clamp and the elastic clamp is in the first operating state, the compensating member reduces the movement dimension of the first arch wire along the depth direction of the groove. When the elastic clamp is in the second actuated state, the compensating member combines with the groove to compensate for the increased dimension of the groove with respect to the width direction of the groove, and the second along the width direction of the groove. 2 Restrict the movement of the arch wire.

Further, an elastic compensating member is used for the compensating member, and in a state where the elastic clamp is on the groove, the elastic compensating member is elastically deformed after being pressed against the first arch wire, and the first arch. The movement dimension along the depth direction of the groove of the wire is variable.

Further, when the elastic compensating member and the only contact with each other and elastic deformation does not occur, an angle is formed between the elastic clamp and the side wall of the groove. After the elastic clamp is pressed against the second arch wire, the elastic compensation member is elastically deformed so that the elastic clamp comes into close contact with the side wall of the groove.

Further, the elastic compensating member includes an elastic bending plate, one side of the elastic bending plate is connected to the elastic clamp, and the other side of the elastic bending plate forms an angle between the elastic bending plate and the elastic clamp. Suspended in.
Further, both sides of the elastic bending plate are connected to the elastic clamp, respectively, and the portion between both sides of the elastic bending plate connected to the elastic clamp is bent.

Further, a rigidity compensating member is used for the compensating member, and the rigidity compensating member does not undergo elastic deformation even when pressed against the first arch wire or the second arch wire, and the second arch wire is inserted into the groove. Later, when the rigidity compensating member is combined with the wire, the elastic clamp and the side wall of the groove are relatively fixed.
Also, the length of the elastic clamp is the same as the length of the groove so as to limit the movement of the second arch wire in the groove.

Further, the elastic clamp has a third actuated state, and when the elastic clamp is in the third actuated state, the elastic clamp can bend in a direction away from the groove. Thereby, the passage dimension of the channel is larger than the radial dimension of the second arch wire. When the second arch wire enters the groove, the elastic clamp returns to the top of the groove and with respect to the second arch wire. It becomes self-locking and there is a gap between the second arch wire and the groove.

Further, the elastic clamp has a fourth actuated state, and the elastic clamp in the fourth actuated state can bend in a direction away from the groove. This prevents the elastic clamp from vertically overlapping the groove.

Further, the elastic clamp is provided with a vertical step connected to the bracket body, and a connecting portion having a smaller tear strength than the step perpendicular to the elastic clamp is provided between the elastic clamp and the vertical step. It is provided.

Further, the bracket body is provided with a ligation blade, and the elastic clamp is provided in the middle of the two ligation blades on the same side, and the elastic clamp is connected so as to be in close contact with the outer surface of the groove of the two ligation blades. It can bend along the section away from the groove.

Further, the elastic clamp has an radian protruding outward with respect to the groove, and the radian portion of the elastic clamp applies pressure to the second arch wire in the second operating state to groove the second arch wire. It can be sandwiched inside to eliminate the gap between the second arch wire and the groove.

Further, an installation groove is provided on the side wall of the groove, the installation groove is on the opposite side of the groove, and the installation groove increases the movement dimension of the first arch wire along the width direction of the groove, and also. By making the dimension of the mouth of the installation groove smaller than the radial dimension along the depth direction of the groove after entering the groove of the second arch wire, the second arch wire is prevented from entering the installation groove. Restrict.

The present invention adopting the above structure is skillful and rational in its design, and by providing an elastic clamp in the groove of the bracket, the advantages are utilized at each stage of orthodontic treatment and when applying each type of arch wire, and the disadvantages are avoided. effective.

In the first stage of orthodontic treatment, the doctor pushes the first arch wire into the groove. The operation is very easy. Also, the first archwire is to inform the doctor that the archwire should not be completely grooved (clinically the suspension can be ligated) when the tooth is subject to excessive pulling force. It automatically breaks through the elastic clamp and slips out of the groove. Avoid unnecessary damage and distress to the patient. By further optimizing the structure, the groove becomes wider at the initial stage of correction, the gap between the arch wire and the groove becomes larger, the movement of the arch wire along the width direction of the groove increases, and a certain degree of near / far / medium Allows tooth tilt in the direction, avoids tilting of the anterior teeth to the lips and overcapsular occlusion, and consumes less fixation source (the teeth that you do not want to move hardly move). In addition, the compensating member is used at an early stage of orthodontics to make the groove depth shallow, reduce the movement of the arch wire along the groove depth direction, and make it easier to correct the tooth twist.

In the second stage of orthodontic treatment, the second arch wire can push the elastic clamp directly into the groove, and the elastic clamp is located between the arch wire and the groove, which narrows the width of the groove and narrows the width of the groove and the arch wire and the groove. By eliminating the gap with the width direction of the tooth, the ideal Turkish axis tilt angle and position for the tooth was created, the axis tilt angle and torque angle of the tooth were accurately controlled, and the orthodontic effect was greatly improved.

In addition, the self-locking structure of the above method is clever and practical, does not take up too much space, and the ligature wing structure of the present invention is no different from the conventional ligation bracket, and the ligation wire and the chain-shaped skin ring are arranged in clinical operation. Will be easier. The whole self-locking bracket structure is not very demanding on the production process, the self-locking structure is very stable, cost-effective, and almost solves the problems of conventional self-locking brackets and straightening techniques.

Is a schematic diagram of the three-dimensional structure of the present invention. Is a schematic view of the side structure of FIG. Is a block diagram of the first operating state of the elastic clamp of the present invention. Is a block diagram of the second operating state of the elastic clamp of the present invention. Is a block diagram of the third operating state of the elastic clamp of the present invention. Is a structural diagram having the radian of the elastic clamp of the present invention. Is a block diagram of a further optimization plan of the present invention. Is a structural diagram after attaching the first arch wire of the structure shown in FIG. 7. Is a structural diagram after attaching the second arch wire to the structure shown in FIG. Is a structural diagram of the mounting process of the first arch wire of the present invention. Is a structural drawing after the present invention attaches the second arch wire using the rigidity compensating member.

In order to clearly explain the technical features of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.
In order to fully understand this application, many specific details are described in the following description, but this application may be carried out in other embodiments different from those described herein, and therefore. , The scope of protection of this application is not limited by the particular embodiments disclosed below.

Also, in the explanation of this patent application, we would like you to understand the terms "center", "top", "bottom", "front", "rear", "left", "right", "vertical", etc. The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inside", "outside", "axial direction", "diametrical direction", "circumferential direction", etc. is the orientation or positional relationship shown in the attached drawing. It is intended to facilitate the description and simplify the description of the present application, and that the device or element described must have a specific orientation, be configured in a specific orientation, and operate. It is not shown or implied and should not be understood as a limitation of this application.

Also, the terms "first" and "second" are used for illustration purposes only and are understood to indicate or imply relative importance or imply a number of technical features indicated. I don't want you to do it. Therefore, features limited to "first" and "second" can include one or more features, either explicitly or implicitly. In the description of this application, "plurality" means two or more, unless expressly limited.

In this application, terms such as "mount", "connect", "connect", and "fixed" may be fixed or removable unless specifically specified or limited. It may be one or the other. It may be a mechanical connection, an electrical connection, or a communication. It may be directly connected, indirectly connected via an intermediate medium, an internal connection between the two elements, or an interaction relationship between the two elements. For ordinary traders in the industry, the specific meaning of the above terms in this application can be understood, depending on the circumstances.

In this application, unless specifically specified or limited, the first feature is "above" or "below" the second feature because the first and second features are in direct contact with each other. It may be, or the first and second features may be indirect contact via an intermediate medium. In the description of this application, the reference terms such as "in a preferred embodiment", "notable", "case", "specifically exemplified", or "some cases" are used in this embodiment or case. Specific features, structures, materials or features described in conjunction with are meant to be included in at least one embodiment or case of the present application. In this application, the schematic representations of the above terms do not necessarily cover the same embodiment or case. In addition, the particular features, structures, materials or features described may be combined in any one or more embodiments or examples in a suitable manner.
As shown in Figure 1-11, the groove variable time-sharing self-locking orthodontic bracket includes:

The bracket body 1 and the bottom of the bracket body 1 are provided with a bracket bottom plate 2 in contact with teeth, and the bracket body 1 is provided with a groove 3 for attaching an arch wire. The arch wire includes a first arch wire 4 and a second arch wire 5, and the radial dimension of the first arch wire 4 is smaller than the radial dimension of the second arch wire 5.

A time-sharing self-locking unit, including an elastic clamp 6 provided on the side wall of the groove 3, a dimensionally variable channel 7 is formed between the elastic clamp 6 and the side wall of the groove 3, and the channel 7 has an archwire groove. Fitted to enter and exit 3, the radial dimension of the first archwire 4 is smaller than the maximum passage dimension of the channel 7, and the radial dimension of the second archwire 5 is larger than the maximum passage dimension of the channel 7.

The elastic clamp 6 has first and second operating states. When in the first actuated state, the first archwire 4 passes through the channel 7 into the groove 3 to form a self-lock. When in the second actuated state, the second arch wire 5 presses the elastic clamp 6 closer to the side wall of the groove 3 to form a non-self-lock.

As shown in Attachments 3 and 4, the elastic clamp 6 has first and second operating states. When in the first actuated state, the first archwire 4, which is smaller than the radial dimension of the maximum passage dimension of the channel 7, passes through the channel 7 and enters the groove 3 to form a self-lock. When in the second actuation state, the second archwire 5, which is larger than the radial dimension of the maximum passage dimension of the channel 7, is pressed against the elastic clamp 6 and the side wall of the groove 3 to eliminate the gap and form a non-self-lock. .. The arch wire in this state needs to be fixed by ligation. Bracket reserve torque cannot be accurately represented, so orthodontists generally need to bend the archwire to properly adjust the torque, but clinically make the archwire torque scale accurate. Since it is difficult to do so, there is a risk that there is no torque force or the torque is too large to be absorbed from the tooth root. As shown in FIG. 4, the elastic clamp 6 in the second operating state is embedded in the groove 3, and the second arch wire 5 is directly sandwiched together with the groove 3, so that the torque expression of the second arch wire 5 is softer and safer. It was efficient and reduced the patient's pain and side effects.

More specifically, the elastic clamp 6 has a first pressure that limits the outward movement of the first arch wire 4, and once the first arch wire 4 is attached, the elastic clamp 6 is moved away from the groove 3. Pressed, the elastic clamp 6 receives the second pressure. The second pressure received by the elastic clamp 6 applies a traction force to the tooth, and when the second pressure reaches the upper limit of the allowable traction force of the tooth, the second pressure applied to the elastic clamp 6 of the first arch wire 4 becomes the first. The first arch wire 4, which is greater than the pressure, escapes from the groove 3. Once the first arch wire 4 is attached, it moves in the groove 3 and produces a force that presses against the groove 3 or a second pressure that is applied to the elastic clamp 6. Since the forces act on each other, the second pressure exerts a corresponding traction force on the tooth. When the second pressure reaches the upper limit of the allowable traction force of the tooth, the force applied to the first arch wire 4 and bracket 1 is adjusted to protect the tooth and prevent the patient from suffering unnecessary damage and distress. To inform the doctor, the first arch wire 4 breaks through the elastic clamp 6 and pops out of the groove 3.

In a preferred embodiment, the side wall of the groove 3 is provided with a recess 8 so as to increase the widthwise dimension of the groove 3 so that the range of movement of the first arch wire 4 along the width direction of the groove 3 is large. ..

A compensating member 9 is provided on the bottom surface of the elastic clamp 6 to reduce the movement dimension of the first arch wire 4 along the depth direction of the groove 3 when the elastic clamp 6 is in the first operating state. When the elastic clamp 6 is in the second actuated state, the compensating member 9 is combined with the recess 8 to compensate for the increased dimension of the recess 8 with respect to the width direction of the groove 3 and the second along the width direction of the groove 3. Restrict the movement of arch wire 5. When used, when the elastic clamp 6 is in the first actuated state (ie, in the early stages of orthodontic treatment of the tooth), the groove 3 becomes larger, the gap between the first arch wire 4 and the groove 3 becomes larger, and the first arch Increases the movement of the wire 4 along the width direction of the groove 3 to allow some degree of near / far / middle tooth tilt, avoids tilting of the anterior teeth to the lips and overcapsular occlusion, and consumes the fixed source. Less (the teeth that you do not want to move hardly move); Also, when the elastic clamp 6 is in the first operating state, the depth of the groove 3 is shallowed by the compensating member 9, and the depth of the groove 3 is along the depth direction. 1 Reduces the migration of archwire 4 and makes it easier to correct tooth twist. When the elastic clamp 6 is in the second actuated state (ie, late in orthodontic treatment), the width of the groove 3 is narrowed according to demand to eliminate the gap in the width direction between the second arch wire 5 and the groove 3. As a result, the ideal Turkish, axial tilt angle and position for the tooth can be obtained, the axial tilt angle and torque angle of the tooth can be accurately controlled, and the orthodontic effect can be improved.

It should be noted that if the movement dimension of the groove 3 of the first arch wire 4 along the width direction can be increased, the specific shape of the recess 8 should be arbitrarily set according to the actual processing usage situation. Can be done. Further, if the recess 8 compensates for the increased dimension in the width direction of the groove 3, the specific outer shape of the compensating member 9 can be set according to the recess 8.

In a preferred embodiment, the compensating member 9 employs an elastic compensating member 901, and when the elastic clamp 6 is on the groove 3, the elastic compensating member 901 is pressed against the first arch wire 4 to be elastically deformed and the first arch. The movement dimension of the groove 3 of the wire 4 along the depth direction is variable. After adopting the elastic compensating member 901, the movement dimension of the groove 3 of the first arch wire 4 along the depth direction becomes smaller, the movement is restricted, and the elastic compensating member 901 is pressed against the first arch wire 4. Because it was elastically deformed, it provided a buffering action against the traction force to the first arch wire 4, and the force applied to the teeth was safer and gentler, and the movement dimension along the depth direction of the groove 3 of the first arch wire 4. Will be variable and more adaptable and effective.

It should be explained that when the elastic compensating member 901 and the recess 8 are in contact with each other and elastic deformation does not occur, an angle is formed between the elastic clamp 6 and the side wall of the groove 3. After the elastic clamp 6 is pressed against the second arch wire 5, elastic deformation occurs in the elastic compensation member 901, so that the elastic clamp 6 comes into close contact with the side wall of the groove 3. Since the preliminary torque of the bracket cannot be accurately expressed by conventional techniques, it is generally necessary for the orthodontist to bend the archwire to adjust the torque properly, but clinically the torque scale of the archwire is required. Since it is difficult to make accurate, there is a risk that there is no torque force or the torque is too large and is absorbed from the tooth root. As shown in FIG. 9, when the elastic clamp 6 of the present invention is in the second operating state, after the second arch wire 5 is embedded in the groove 3, the elastic compensation member 901 is sandwiched in the recess 8 and the elastic clamp 6 is grooved. By sandwiching the second arch wire 5 directly together with the side wall of 3, the torque expression of the second arch wire 5 becomes softer, safer and more efficient, and it is difficult for the orthodontic doctor to bend the arch wire and to operate it. And reduced the patient's pain and side effects.

In a preferred embodiment, the elastic compensating member 901 includes an elastic bending plate, one side of the elastic bending plate is connected to the elastic clamp 6, and the other side is formed with an angle between the elastic bending plate and the elastic clamp 6. Suspended like. By adopting a method in which one side is connected to the elastic clamp 6 for the elastic bending plate, it is possible to both limit the first arch wire 4 and supplement the dent 8. When actually used, there are conditions that can be implemented.

In a preferred embodiment, both sides of the elastic bending plate are connected to the elastic clamp 6 respectively, and the portion between the two sides of the elastic bending plate connected to the elastic clamp 6 is bent. When the elastic bending plate is pressed, its outer shape is elastically deformed, that is, the form of the elastic compensating member changes. Both ends of the elastic bending plate are fixed and connected to the elastic clamp 6, and the elastic compensating member 901 is stable even when subjected to a force, the elastic deformation and recovery ability are more stable, the reliability is high, and the life is long. The structural stability and reliability of the connection between both ends of the elastic bent plate is an optimized form that is more reliable than the method in which one end is fixed and one end is suspended.

It should be noted that the connecting position of the elastic bending plate and the elastic clamp 6 is separated from the connecting end of the elastic clamp 6 and the bracket body 1. Taking into consideration the load of the elastic bending plate connected to one end, the connection position between the elastic bending plate and the elastic clamp 6 was intentionally set away from the connecting end of the elastic clamp 6 and the bracket body 1. At this time, the elastic bending plate not only gives a good limiting and buffering effect to the first arch wire 4, but also effectively compensates for the dent 8 when the elastic clamp 6 is in the second operating state, and the elastic clamp 6 The position of can be specified.

In the alternative, a rigidity compensating member 902 is adopted for the compensating member 9, and elastic deformation does not occur after the rigidity compensating member 902 is pressed against the first arch wire 4 or the second arch wire 5, and the second arch wire 5 is used. After being attached to the groove, the rigidity compensating member 902 and the recess 8 are combined and the position between the elastic clamp 6 and the side wall of the groove 3 is relatively fixed. As shown in the attached drawing 10, when the elastic clamp 6 is in the second operating state, the second arch wire 5 is embedded in the groove 3 and the rigidity compensating member 902 is inserted into the recess 8, so that the position of the elastic clamp 6 is obtained. Was fixed, and the elastic clamp 6 combined with the groove 3 directly sandwiched the second arch wire 5 to make the torque expression of the second arch wire 5 softer, safer and more efficient.

In a preferred embodiment, the length of the elastic clamp 6 is the same as the length of the groove 3 so as to limit the movement of the second arch wire in the groove. In this embodiment, since the elastic clamp 6 is not sufficient to cover the length direction of the groove 3, the second arch wire is displaced to an uncovered position between the length direction of the elastic clamp 6 and the groove 3, and the torque is increased. It is possible to avoid affecting the accurate representation of the corners.

Notably, the elastic clamp 6 has a third actuated state, and when in the third actuated state, the elastic clamp 6 can bend away from the groove 3. As a result, the passage dimension of the channel 7 is larger than the radial dimension of the second arch wire 5. When the second arch wire 5 enters the groove 3, the elastic clamp 6 returns to the top of the groove 3 and the second arch wire 5 It becomes self-locking, and there is a gap between the second arch wire 5 and the groove 3.

In another alternative embodiment compared to the third actuated state of the elastic clamp 6, the elastic clamp 6 has a fourth actuated state, and the elastic clamp 6 in the fourth actuated state bends away from the groove 3. Can be done. As a result, the elastic clamp 6 does not overlap with the groove 3 in the vertical direction. The elastic clamp 6 vertically separates from the groove 3 to ensure subsequent non-self-locking conditions.

In a preferred embodiment, the elastic clamp 6 is connected to the elastic clamp 6 vertically to the bracket body 1 in order to improve the stability of the connection between the elastic clamp 6 and the bracket body 1 in order to facilitate the fourth operating state. A step 10 is provided, and a connection portion 11 is provided between the elastic clamp 6 and the step 10 perpendicular to the elastic clamp 6, and the tear strength of the connection portion 11 is smaller than the tear strength of the step 10 perpendicular to the elastic clamp 6. The elastic clamp 6 and the vertical step 10 are integrated, and the vertical step 10 is connected to the bracket body 1, so that the installation of the elastic clamp 6 is stable and accurate. More specifically, it is more stable by integrating the vertical step 10 and the bracket body 1. Alternatively, the vertical step and the bracket body 1 are connected by a welding method.

In a preferred embodiment, the bracket body 1 is provided with a ligation blade 13, the elastic clamp 6 is provided in the middle of the two ligating blades 13 on the same side, and the elastic clamp 6 is provided outside the groove 14 of the two ligating blades 13. It can be bent away from the groove 3 along the connecting portion so as to be in close contact with the side surface. When using, bend the elastic clamp 6 so that it is close to the groove 14 in the middle of the ligation blade 13 so as not to tear it. The ligation wing 10 is designed so that the arch wire can be easily ligated and fixed. A material having a tear strength smaller than that of the step 10 perpendicular to the elastic clamp 6 can be used for the connection portion 11. Alternatively, the material utilization fee at the connection portion 11 position is reduced so that the thickness of the connection portion 11 is smaller than the thickness of the step 10 perpendicular to the elastic clamp 6. At the same time as ensuring that the elastic clamp 4 operates normally, it has the effect of bending the connection portion 11.

Notably, as another bending alternative to the elastic clamp 6, the elastic clamp 6 is directly folded to provide a plurality of holes in the connection portion 11, and the hole design reduces the tear strength at the position of the connection portion 11. And the elastic clamp 6 can be bent upwards to cut.

In a preferred embodiment, the elastic clamp 6 has an radian that projects outward with respect to the groove 3 so that the elastic clamp 6 can better press and limit the second arch wire 5 to the groove 3, said elastic clamp 6. By applying pressure to the second arch wire 5 in the second operating state of the radian, the second arch wire 5 is sandwiched in the groove 3, and the gap between the second arch wire 5 and the groove 3 is eliminated.

In a preferred embodiment, the mounting groove 12 is provided on the side wall of the groove 3 so that the mounting groove 12 is on the opposite side of the recess 8 and increases the movement dimension of the first arch wire 4 along the width direction of the groove 3. The size of the groove opening of the installation groove 12 is smaller than the radial size along the depth direction of the groove 3 after the second arch wire 5 has entered the groove 3. Restrict access to the installation groove 12 of 5. By corresponding to the provided installation groove 12 and the recess 8, the movement dimension of the first arch wire 4 along the width direction of the groove 3 is increased again, and the inclination of the tooth in the near / far / middle direction is more. It is highly adaptable, avoiding tilting of the anterior teeth to the lips and overcapsular occlusion, and can obtain a better effect.

The specific embodiments described above do not limit the scope of protection of the present invention, and for those in the art, any alternative improvement or conversion made by the embodiments of the present invention is the protection of the present invention. It is within range.
What is not described in detail in the present invention is a technique well known to those in the art.

In the figure, 1, the bracket body. 2, bracket bottom plate. 3, groove. 4, 1st arch wire. 5, 2nd arch wire. 6, elastic clamp. 7, channel. 8, dent. 9, compensation member. 901, elastic compensation member. 902, hardness compensation member. 10, vertical steps. 11, connection part. 12, installation groove. 13, ligated wings. 14, groove.

Claims (15)

A groove variable time-sharing self-locking orthodontic bracket that includes a bracket body and a time-sharing self-locking unit.
A bracket substrate that comes into contact with teeth is provided on the bottom of the bracket body, and a groove for attaching an arch wire is provided on the bracket body.
The arch wire includes a first arch wire and a second arch wire.
The radial dimension of the first arch wire is smaller than the radial dimension of the second arch wire.
The time-sharing self-locking unit includes an elastic clamp provided on the side wall of the groove.
A dimensionally variable channel is formed between the elastic clamp and the side wall of the groove.
The channel is adapted so that the arch wire goes in and out of the groove.
The radial dimension of the first arch wire is smaller than the maximum passage dimension of the channel.
The radial dimension of the second arch wire is greater than the maximum passage dimension of the channel.
The elastic clamp has first and second actuation states.
Upon hitting the first actuation state, the first arch wire passes through the channel and enters the groove to form a self-lock.
For groove-variable time-sharing self-locking orthodontics, the second archwire presses the elastic clamp closer to the side wall of the groove to form a non-self-lock during the second actuation state. bracket. The elastic clamp is provided with a first pressure to limit the outward movement of the first arch wire, and when the first arch wire is attached, the elastic clamp is pressed away from the groove, and the elastic clamp receives the second pressure. , The second pressure received by the elastic clamp exerts a traction force on the tooth, and when the second pressure reaches the upper limit of the allowable traction force of the tooth, the second pressure applied to the elastic clamp of the first arch wire becomes the second. The groove variable time-sharing self-locking orthodontic bracket according to claim 1, wherein the first arch wire, which is greater than one pressure, exits the groove. The side wall of the groove is provided with a recess so as to increase the dimension in the width direction of the groove and increase the movement range of the first arch wire along the width direction of the groove.
When a compensating member is provided on the bottom surface of the elastic clamp and the elastic clamp is in the first operating state, the compensating member reduces the movement dimension along the depth direction of the groove of the first arch wire.
When the elastic clamp is in the second actuated state, the compensator member combines the recess with the recess to compensate for the increased dimension of the recess with respect to the width direction of the groove and along the width direction of the groove. The groove variable time-sharing self-locking orthodontic bracket according to claim 1, wherein the movement of the second arch wire is restricted. An elastic compensating member is used as the compensating member, and an elastic compensating member is used.
When the elastic clamp is on the groove, the elastic compensator is elastically deformed after being pressed against the first arch wire, and the movement dimension along the depth direction of the groove of the first arch wire is variable. The groove-variable time-sharing self-locking orthodontic bracket according to claim 3, characterized in that. When the elastic compensating member abuts on the recess and no elastic deformation occurs, an angle is formed between the elastic clamp and the side wall of the groove.
The elastic clamp is characterized in that after being pressed against the second arch wire, the elastic compensation member is elastically deformed so that the elastic clamp comes into close contact with the side wall of the groove. The groove variable time-sharing self-locking orthodontic bracket according to claim 4. The elastic compensating member includes an elastic bending plate, and the elastic compensating member includes an elastic bending plate.
4. The groove-variable time-sharing self-locking orthodontic bracket according to 5. The variable groove according to claim 6, wherein both sides of the elastic bending plate are connected to the elastic clamp, and the portion between the two sides of the elastic bending plate connected to the elastic clamp is bent. Time-sharing self-locking orthodontic bracket. A rigidity compensating member is used for the compensating member, and the rigidity compensating member does not undergo elastic deformation even when pressed against the first arch wire or the second arch wire, and after the second arch wire is inserted into the groove, The groove variable time share according to claim 3, wherein when the rigidity compensating member is combined with the recess, the elastic clamp and the side wall of the groove are relatively fixed. Ring self-locking bracket for orthodontics. The groove variable timeshare according to claim 4 or 8, wherein the length of the elastic clamp is the same as the length of the groove so as to limit the movement of the second arch wire in the groove. Ring self-locking bracket for orthodontics. The elastic clamp has a third actuated state, and when in the third actuated state, the elastic clamp can bend away from the groove.
The passage dimension of the channel is larger than the radial dimension of the second arch wire.
When the second arch wire enters the groove, the elastic clamp returns to the top of the groove, becomes self-locking to the second arch wire, and is characterized by a gap between the second arch wire and the groove. The groove-variable time-sharing self-locking orthodontic bracket according to claim 2. The elastic clamp has a fourth actuated state, and the elastic clamp in the fourth actuated state can bend away from the groove.
The groove variable time-sharing self-locking orthodontic bracket according to claim 2, wherein the elastic clamp does not vertically overlap the groove. The elastic clamp is provided with a vertical step connected to the bracket body, and a connection portion having a smaller tear strength than the step perpendicular to the elastic clamp is provided between the elastic clamp and the vertical step. The groove variable time-sharing self-locking orthodontic bracket according to claim 11, characterized in that. The bracket body is provided with a ligation blade, the elastic clamp is provided in the middle of the two ligating blades on the same side, and the elastic clamp is attached to the connecting portion so as to be in close contact with the outer surface of the groove of the two ligating blades. The groove variable time-sharing self-locking orthodontic bracket according to claim 12, characterized in that it can be bent away from the groove along. The elastic clamp is provided with an radian protruding outward with respect to the groove, and the radian portion of the elastic clamp applies pressure to the second arch wire in the second operating state to groove the second arch wire. The groove-variable time-sharing self-locking orthodontic bracket according to claim 2, characterized in that it can be clamped inside to eliminate the gap between the second arch wire and the groove. An installation groove is provided on the side wall of the groove, the installation groove is on the opposite side of the recess, and the installation groove increases the movement dimension of the first arch wire along the width direction of the groove, and the installation is also performed. By making the dimension of the groove mouth smaller than the radial dimension along the depth direction of the groove after entering the groove of the second arch wire, the second arch wire is restricted from entering the installation groove. The groove-variable time-sharing self-locking orthodontic bracket according to claim 3, characterized in that.

Images