KR102537855B1 - Bracket for orthodontics - Google Patents

Abstract

The present invention relates to an orthodontic bracket, and the orthodontic bracket according to the present invention includes a base part 110, one surface of which is fixed to teeth, and a direction spaced apart from the base part 110 and away from one surface of the base part 110. A body including a first extension part 120 and a second extension part 130 extending to, and a slot 140 into which a wire is inserted is formed between the first extension part 120 and the second extension part 130. (100), coupled to the body 100, facing the second extension part 130 and sliding, the operating unit 200 for opening and closing the slot 140, formed to penetrate the body 100, and 200 includes a penetrating part 500 extending in a sliding direction, and a fastening part 600 provided in the operation part 200 and extending in a rod shape to be inserted into the penetrating part 500, In 500, a connection portion 510 between both ends is formed by protruding from the upper surface of the through portion 500 toward the lower surface of the through portion 500.

Description

Orthodontic bracket {Bracket for orthodontics}

The present invention relates to an orthodontic bracket.

In general, orthodontic treatment is a procedure for correctly correcting malformed teeth, using brackets, wires, and binding ties. Specifically, the bracket is firmly bonded and fixed to the tooth surface with an adhesive, and then a wire is inserted into the slot of the bracket and bound with a binding tie such as an O-ring so that the wire does not escape from the slot. At this time, the wire is stretched in the direction to correct the teeth, it is possible to correct the misaligned teeth over a long period of time.

However, the above-described method involves attaching a very small bracket to the tooth surface, inserting a wire into the slot and binding it with a binding tie such as an O-ring, periodically releasing the binding tie from the bracket, and then inserting a new wire into the slot. It must be inserted and secured with a binding tie. Therefore, there is a problem that the difficulty of the work is high and a lot of time is required.

In order to solve this problem, as disclosed in the patent documents of the prior art document below, a self-ligating orthodontic bracket capable of binding a wire to the bracket using a cover without using a binding tie such as an O-ring has been developed. .

However, orthodontic brackets according to the prior art are in the form of a rotating cover, and when the slot of the bracket is opened by rotating the cover, the volume becomes too large, making it difficult to actually perform the procedure.

Of course, there is also a method of sliding the cover, but there is a problem in that there is no means for stably guiding the sliding cover or stopping it at an accurate position.

KR 10-0767443 B1

The present invention is to solve the problems of the prior art described above, and one aspect of the present invention is to stably guide the operating unit by penetrating the fastening unit provided in the operating unit through a through hole penetrating the body, and at the same time stop it in an accurate position. It is about orthodontic brackets that are available.

An orthodontic bracket according to an embodiment of the present invention includes a base part having one surface fixed to a tooth, and a first extension part and a second extension part spaced apart from the base part and extending in a direction away from one surface of the base part, A body having a slot into which a wire is inserted is formed between the first extension and the second extension, an operating unit coupled to the body and facing the second extension while sliding to open and close the slot, A penetrating part formed to penetrate and extending in a direction in which the actuating part slides, and a fastening part provided in the actuating part and extending in a rod shape to be inserted into the penetrating part, wherein the penetrating part includes a connecting portion between both ends. It is formed by protruding from the upper surface of the through part toward the lower surface of the through part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, a first stop portion is formed at one end of the penetrating portion, and a second stop portion is formed at the other end, and a gap between the first stop portion and the second stop portion is formed. The connecting portion is formed by protruding.

In addition, in the orthodontic bracket according to an embodiment of the present invention, when the operation unit opens the slot, the fastening unit is inserted into the first stop, and when the operation unit closes the slot, the fastening unit It is inserted into the second stop.

In addition, in the orthodontic bracket according to an embodiment of the present invention, when the fastening part moves from the first stop to the second stop, or moves from the second stop to the first stop, the connecting part , and the fastening part is deformed while passing through the connection part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the area of the connection portion becomes narrower as it protrudes from the upper surface of the through portion toward the lower surface of the through portion.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the connecting portion protrudes from the upper surface of the penetrating portion toward the lower surface of the penetrating portion toward the second stop portion from the first stop portion, and the width narrows. A first contact area, a second contact area protruding from the upper surface of the penetrating part toward the lower surface of the penetrating part and narrowing in width from the second stop part toward the first stop part, and the first contact area and the first contact area. and a third contact area protruding from an upper surface of the through portion toward a lower surface of the through portion to connect the two contact areas.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the third contact area has a constant width.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the third contact area protrudes by a predetermined size from the upper surface of the penetrating part toward the lower surface of the penetrating part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, when viewed from the longitudinal direction of the fastening part, the width of the connecting part is smaller than the width of the penetrating part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the lower surface of the through part is bent downward by the amount of protrusion of the connection part from the upper surface of the through part toward the lower surface of the through part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening part is formed with a recessed groove to correspond to the third contact area.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening portion is formed in a hollow shape.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening part is cut along the longitudinal direction of the fastening part, and a plurality of cut parts are formed along the outer surface of the fastening part.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening part is made of stainless steel, a nickel-titanium (Ni-Ti) based alloy, or a copper-nickel-titanium (Cu-Ni-Ti) based alloy. , a cobalt-chrome-molybdenum (Co-Cr-Mo)-based alloy, or a shape memory polymer.

In addition, in the orthodontic bracket according to an embodiment of the present invention, a protruding portion is formed to protrude from the second extension portion toward the operating unit, and a recessed portion is formed to be depressed from the operating unit facing the body. The protruding portion and the recessed portion are coupled in a dovetail shape.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the penetrating portion is formed symmetrically with respect to an imaginary line perpendicular to the sliding direction of the operating unit at the center of the sliding direction of the operating unit.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the first stop part and the second stop part are spaced apart from the lowermost end of the penetrating part by the same distance in the vertical direction.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening part is formed of a wire or rod.

In addition, in the orthodontic bracket according to an embodiment of the present invention, the fastening part is formed of a shape memory member and is restored to a straight line at a predetermined temperature or higher.

In addition, in the orthodontic bracket according to an embodiment of the present invention, a first fastening hole and a second fastening hole are formed on both sides of the recessed part of the operating part so that the fastening part is coupled, and the first fastening hole is penetrated. , The second fastening hole is closed at the end.

Features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in this specification and claims should not be interpreted in a conventional and dictionary sense, and the inventor may appropriately define the concept of the term in order to explain his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is.

According to the present invention, there is an advantage in stably guiding the operating unit by penetrating the fastening unit provided in the operating unit through the through-hole penetrating the body.

In addition, according to the present invention, since the fastening part provided in the operating part passes through the penetrating part formed in the body, the fastening part cannot be separated from the penetrating part, and accordingly, even if the operating part slides countless times, the separating part from the body can be completely prevented. There are possible effects.

In addition, according to the present invention, when the fastening part passes through the protruding connection part of the penetrating part, it is possible to prevent excessive load from being applied to the fastening part by minimizing the contact area.

In addition, according to the present invention, the fastening part is formed of a shape memory member, is easily deformed at a predetermined temperature or less, and is restored to its original shape in a straight line at a predetermined temperature or more, so that the operating part can be easily slid at a predetermined temperature or less during operation, After the procedure, there is an effect of stably fixing the operation unit at a predetermined temperature or higher in the oral cavity and preventing random sliding.

1A is a perspective view of an orthodontic bracket according to an embodiment of the present invention;
1B is an exploded perspective view of an orthodontic bracket according to an embodiment of the present invention;
Figure 2a is a cross-sectional view taken along line AA of Figure 1a;
Figure 2b is a cross-sectional view taken along line BB of Figure 1a;
Figure 2c is a cross-sectional view taken along line CC of Figure 2a;
Figure 3a is a cross-sectional view taken along line AA of Figure 1a;
Figure 3b is a cross-sectional view taken along line BB of Figure 1a;
Figure 3c is a cross-sectional view taken along line CC of Figure 3a;
Figure 4a is a cross-sectional view taken along line AA of Figure 1a;
Figure 4b is a cross-sectional view taken along line BB of Figure 1a;
Figure 4c is a cross-sectional view taken along line CC of Figure 4a;
5 is a perspective view of a fastening part of an orthodontic bracket according to an embodiment of the present invention;
6 to 9 are cross-sectional views showing the operation process of the orthodontic bracket according to an embodiment of the present invention, and
10 is a cross-sectional view along line AA of FIG. 1A.

Objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In adding reference numerals to components of each drawing in this specification, it should be noted that the same components have the same numbers as much as possible, even if they are displayed on different drawings. In addition, terms such as “first” and “second” are used to distinguish one component from another component, and the components are not limited by the terms. Hereinafter, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A is a perspective view of an orthodontic bracket according to an embodiment of the present invention, and FIG. 1B is an exploded perspective view of an orthodontic bracket according to an embodiment of the present invention.

As shown in FIGS. 1A to 1B , the orthodontic bracket according to the present embodiment has a base part 110 whose one surface is fixed to the teeth, and is spaced apart from the base part 110 from one surface of the base part 110. It includes a first extension part 120 and a second extension part 130 extending in a direction away from each other, and a slot 140 into which a wire is inserted is formed between the first extension part 120 and the second extension part 130. The formed body 100, coupled to the body 100, and facing the second extension part 130 while sliding, the operation unit 200 for opening and closing the slot 140, is formed to pass through the body 100, It includes a penetrating part 500 extending in a direction in which the operating part 200 slides, and a fastening part 600 provided in the operating part 200 and extending in a rod shape to be inserted into the penetrating part 500, Between both ends of the penetrating part 500, a connecting part 510 protrudes from the upper surface of the penetrating part 500 toward the lower surface of the penetrating part 500.

The body 100 is attached to teeth and bound to a wire, and includes a base part 110, a first extension part 120, and a second extension part 130. Here, one surface of the base part 110 is fixed to the teeth, for example, it may be attached to the teeth using an adhesive layer or the like. In addition, the first extension part 120 and the second extension part 130 are spaced apart from each other from the base part 110 and extend in a direction (upward direction) away from one surface of the base part 110 . At this time, since the first extension 120 and the second extension 130 extend apart from each other, a slot 140 may be formed between the first extension 120 and the second extension 130. . Wires may be inserted into and bound to these slots 140 . In addition, the first extension part 120 may further extend upward compared to the second extension part 130 . Accordingly, the first extension part 120 may be formed at a height corresponding to that of the operating part 200 coupled to the second extension part 130 (see FIG. 1A ).

The operating unit 200 serves to open and close the slot 140 into which the wire is inserted. Here, the operating unit 200 is coupled to the body 100 and faces the second extension unit 130 and slides. The operating unit 200 opens and closes the slot 140 while sliding with respect to the second extension unit 130 . At this time, the operation unit 200 may slide in a state in which the depression 400 is inserted into the protrusion 300 of the body 100 . Specifically, the protruding part 300 is formed to protrude from the second extension part 130 of the body 100 in the direction (upward direction) of the operating part 200, and the recessed part 400 faces the body 100. It is formed to be recessed from one side (lower surface) of the operating unit 200 (see FIGS. 1A to 1B). At this time, the protruding part 300 formed on the body 100 is inserted into the recessed part 400 formed on the operating part 200 . In addition, the protruding portion 300 and the recessed portion 400 may extend in a direction parallel to the direction in which the operating portion 200 slides (a direction perpendicular to the direction in which the slot 140 extends). Accordingly, when the depression 400 slides relative to the protrusion 300 , the operation unit 200 may slide relative to the second extension 130 of the body 100 . At this time, the protruding part 300 and the recessed part 400 may be coupled in a dovetail shape to control the sliding of the operating part 200 . For example, the angle of the dovetail may be 2 to 15 degrees. In addition, the angle of the protruding portion 300 and the angle of the recessed portion 400 may differ by, for example, about 2 degrees. This is a compensation value for post-strain that may occur during manufacturing, and serves to maintain a constant interval in the coupling section between the protruding portion 300 and the recessed portion 400. For example, the angle of the protrusion 300 may be 10 degrees and the angle of the depression 400 may be 12 degrees. Through this configuration, a relatively narrow coupling section (lower side close to the base portion 110) can correspond to a greater deformation than a relatively wide coupling section (upper side far from the base portion 110).

On the other hand, although the protrusion 300 is formed on the body 100 and the depression 400 is formed on the operating unit 200, it has been described, but the scope of the present invention is not necessarily limited thereto, and the protrusion ( 300 may be formed on the operating part 200, and the recessed part 400 may be formed on the body 100.

The penetrating part 500 serves to guide the sliding of the operating part 200 together with the fastening part 600 . Here, the penetrating portion 500 is formed to pass through the second extension portion 130 (the protruding portion 300) in a direction perpendicular to the direction in which the operating portion 200 slides (a direction parallel to the direction in which the slot 140 extends). And, the fastening part 600 is inserted into this penetrating part 500. At this time, the penetrating portion 500 may be extended in a direction in which the operating portion 200 slides (a direction perpendicular to the direction in which the slot 140 extends). That is, the penetrating portion 500 may be formed in a long-hole shape as a whole. Accordingly, the fastening part 600 inserted into the penetrating part 500 may move along the extending direction of the penetrating part 500 (the direction in which the operating part 200 slides). As a result, when the operating unit 200 slides, the fastening unit 600 may guide the sliding of the operating unit 200 while moving along the extending direction of the penetrating unit 500 . More specifically, the upper surface of the penetrating part 500 may be flat and extended, and the lower surface of the penetrating part 500 may be bent downward. That is, the upper surface of the penetrating part 500 may extend in a straight line and the lower surface may extend in a curved shape when viewed from the side. In addition, both ends of the penetrating portion 500 may be formed in a curved surface to correspond to the outer circumferential surface of the fastening portion 600 .

Meanwhile, a connecting portion 510 between both ends of the penetrating portion 500 protrudes from an upper surface of the penetrating portion 500 toward a lower surface of the penetrating portion 500 and is formed. Accordingly, the connecting portion 510 protrudes toward the fastening portion 600 .

In addition, first and second stop parts 520 and 530 may be formed at both ends of the penetrating part 500 . That is, the first stopper 520 is formed at one end of the penetrating part 500, the second stopper 530 is formed at the other end of the penetrating part 500, and the first stopper 520 and the second stopper 530 are formed. A connecting portion 510 may be formed between the stop portions 530 . At this time, the connection part 510 protrudes in the direction of the fastening part 600 compared to the first stop part 520 and the second stop part 530 . The above-described connection part 510 and the first and second stop parts 520 and 530 serve to control the movement of the fastening part 600, which will be described in detail later.

On the other hand, the penetration area of the penetrating part 500 maintains a constant distance (vertical distance) due to the connection part 510, and moves from the first stop part 520 to the connection part 510 in a direction approaching the base part 110. It extends in a (downward direction), and may extend in a direction (downward direction) approaching the base member 110 from the second stop part 530 to the connecting part 510 (see FIG. 2A ). The lower surface of the penetrating part 500 is directed downward as much as the connection part 510 protrudes from the upper surface of the penetrating part 500 toward the lower surface of the penetrating part 500 so that the penetrating area of the penetrating part 500 maintains a constant interval. It can be bent and caved in.

The fastening part 600 serves to guide the sliding of the operating part 200 together with the penetrating part 500 . Here, the fastening part 600 is provided in the operation part 200 and extends in a rod shape to be inserted into the penetrating part 500 . Specifically, both ends of the fastening part 600 are coupled to fastening holes 210 formed on both sides of the recessed part 400 of the operating part 200, and in a direction perpendicular to the direction in which the operating part 200 slides (slot 140 ) may extend in a direction parallel to the extended direction) to pass through the penetrating portion 500 . Therefore, when the operating unit 200 slides, the fastening unit 600 may guide the sliding of the operating unit 200 while moving along the extending direction of the penetrating unit 500 . On the other hand, two fastening holes 210 are formed on both sides of the recessed part 400 of the operating part 600, both of the two fastening holes 210 are through, or one of the fastening holes 210 is penetrated, and the other fastening hole 210 may have a closed end. For example, as shown in FIG. 2B , a first fastening hole 210a and a second fastening hole 210b may be formed on both sides of the depression 400 of the operating part 200, respectively, and the first fastening hole 210a and the second fastening hole 210b may be formed. The hole 210a may pass through, and the end of the second fastening hole 210b may be closed.

As described above, the connection part 510 and the first and second stop parts 520 and 530 are formed in the through part 500 . Here, the fastening part 600 is inserted into the first stop 520 when the operation part 200 opens the slot 140 (see FIGS. 2A and 2B), and the operation part 200 is inserted into the slot ( 140) is inserted into the second stop 530 (see FIGS. 4A-4B). In this way, when the fastening part 600 is inserted into the first stopper 520 or the second stopper 530, the side of the fastening part 600 is supported by the protruding connection part 510, so that the fastening part It is possible to prevent the operating unit 200 coupled with the 600 from sliding arbitrarily with respect to the body 100 . As a result, when the operation unit 200 completely opens or completely closes the slot 140 (see FIGS. 2A and 4A ), the side of the fastening unit 600 is supported by the connection unit 510, so that the operation unit 200 can be fixed in place.

However, when an external force is applied to the operating unit 200 to slide the operating unit 200 relative to the body 100 as needed, the fastening unit 600 may pass through the relatively protruding connection unit 510. . That is, when an external force is applied to the operating unit 200, the fastening unit 600 is moved from the first stop unit 520 to the second stop unit 530 (opening -> closing the slot 140), or The first stop 520 can be moved from the second stop 530 (closing of the slot 140 -> opening). In this way, when the fastening part 600 is moved from the first stop 520 to the second stop 530 or from the second stop 530 to the first stop 520, the fastening The part 600 passes through the connection part 510 disposed between the first and second stop parts 520 and 530 (see FIGS. 3A to 3C). At this time, the connection part 510 protrudes toward the fastening part 600 more than the first and second stop parts 520 and 530 . Accordingly, the fastening part 600 may be deformed (bent, see FIG. 3c) while passing through the connection part 510, and then returned after passing through the connection part 510 (see FIGS. 2c and 4c). Preferably, the fastening part 600 may be formed of a material having elasticity so as to be deformed while passing through the connection part 510 . The material of the fastening part 600 is not particularly limited, but, for example, stainless steel, nickel-titanium (Ni-Ti)-based alloy, copper-nickel-titanium (Cu-Ni-Ti)-based alloy, It may be formed of a cobalt-chrome-molybdenum (Co-Cr-Mo)-based alloy or a shape memory polymer.

As described above, since the fastening part 600 provided in the operating part 200 passes through the penetrating part 500 formed in the body 100 (see FIGS. 2 to 4), the fastening part 600 is the penetrating part. It cannot be separated from the body 100, and thus the operating unit 200 can be completely prevented from being separated from the body 100 even if the operating unit 200 slides countless times.

Meanwhile, when the operation unit 200 slides, a load is applied to the fastening unit 600 while passing through the protruding connection unit 510 . In particular, if the contact area between the operating unit 200 and the connection unit 510 is large, a large load may be applied to the fastening unit 600 . In order to prevent a large load from being applied to the fastening part 600, the width of the connecting part 510 may be smaller than that of the penetrating part 500 when viewed from the longitudinal direction of the fastening part 600 (FIG. 2B). reference). For example, when viewed in the longitudinal direction of the fastening part 600, the width of the connecting part 510 may be less than 1/2 of the width of the penetrating part 500. At this time, the connection part 510 may extend in the direction in which the operating part 200 slides from the center of the penetrating part 500 .

In addition, in order to prevent a large load from being applied to the fastening part 600, the area of the connection part 510 may be formed to become narrower as it protrudes from the upper surface of the through part 500 toward the lower surface of the through part 500 ( see enlarged view of Fig. 1b). That is, the connection part 510 can be formed with a narrow area of the end (lower end) in contact with the fastening part 600 . Therefore, since the contact area is minimized when the fastening part 600 passes through the connection part 510, it is possible to prevent excessive load from being applied to the fastening part 600 (see FIG. 3B).

In particular, when sliding the operating unit 200 to open the slot 140, an external force is applied to the operating unit 200 by rotating a separate device. At this time, torque is generated in the operation unit 200 by an external force generated while a separate device rotates. Due to this torque, the operating unit 200 can be rotated and slid with respect to the body 100 at a predetermined angle, and at this time, the fastening unit 600 is also rotated at a predetermined angle, so that the contact area with the connection unit 510 can be widened. . Therefore, there is a concern that an excessive load is applied to the fastening part 600. As described above, since the area of the most protruding end (lower end) of the connecting part 510 is formed narrowly, even if the fastening part 600 is rotated, the contact area This is minimized, and it is possible to prevent an excessive load from being applied to the fastening part 600 .

More specifically, as shown in the enlarged view of FIG. 1B , the connection part 510 may include a first contact area 510a, a second contact area 510b, and a third contact area 510c. Here, the first contact area 510a protrudes from the upper surface of the penetrating part 500 toward the lower surface of the penetrating part 500 (lower direction) from the first stop part 520 toward the second stop part 530. The second contact area 510b moves from the upper surface of the penetrating part 500 to the lower surface of the penetrating part 500 in the direction from the second stop part 530 to the first stop part 520 (lower side). direction), the width may become narrower.

When viewed from a plane, the first and second contact areas 510a and 510b may have a triangular shape. In addition, the third contact area 510c is provided between the first contact area 510a and the second contact area 510b, and connects the first contact area 510a and the second contact area 510b. , may protrude from the upper surface of the through portion 500 toward the lower surface of the through portion 500 . Accordingly, the third contact area 510c is formed at the end (lower end) of the connection portion 510 that protrudes the most. Also, the third contact area 510c may protrude from the upper surface of the through part 500 toward the lower surface of the through part 500 by a predetermined size. That is, the third contact area 510c may constantly protrude from the upper surface of the through portion 500 . Overall, the first and second contact regions 510a and 510b may be inclined with respect to the sliding direction of the operating unit 200, and the third contact region 510c may be formed parallel to the sliding direction of the operating unit 200. can be formed Meanwhile, the third contact area 510c may have a constant width, unlike the first and second contact areas 510a and 510b, which become narrower as they protrude.

Therefore, when the operation unit 200 slides, the fastening unit 600 initially contacts the first and second contact areas 510a and 510b, and the contact area is relatively wide (see FIGS. 2B and 4B), and then gradually contacts The area may be narrowed (because the width of the first and second contact areas 510a and 510b becomes narrower as they protrude). Then, when the fastening part 600 comes into contact with the third contact area 510c that protrudes the most (see FIG. 3B ), the contact area may be the narrowest. As a result, since the contact area of the fastening part 600 with the connecting part 510 decreases as the connecting part 510 protrudes, the fastening part 600 can smoothly ride over the inclined first and second contact areas 510a and 510b. In addition, since the contact area is minimized in the third contact area 510c that protrudes the most, it is possible to prevent excessive load from being applied to the fastening part 600 .

Meanwhile, the fastening part 600 may be formed of a wire or bar. Basically, the fastening part 600 may be formed in a cylindrical shape with no empty space formed therein (see (a) of FIG. 5). At this time, since no empty space is formed inside the fastening part 600, the volume of the fastening part 600 does not change while passing through the connecting part 510, and the fastening part 600 is bent relative to the longitudinal direction. After passing through the connecting portion 510, it can be straightened.

Alternatively, the fastening part 600 may be hollow in which an empty space is formed (see (b) and (d) of FIG. 5 ). However, it is not necessary that an empty space be formed inside the fastening part 600 (see (a), (c), and (e) of FIG. 5 ). Meanwhile, the fastening part 600 may have, for example, a diameter of 0.05 to 1.0 mm and a length of 1.0 to 6.0 mm.

In addition, the fastening part 600 may be formed with a flat recessed groove 610 corresponding to the third contact area 510c (see FIGS. 5(b) and (c)). Therefore, when the fastening part 600 passes through the third contact area 510c (see FIG. 3B ), the recessed groove part 610 is in contact with the third contact area 510c, so that the fastening part 600 is caught. load can be further reduced. Specifically, the third contact area 510c may be formed at the center of the fastening part 600 in the longitudinal direction, and correspondingly, the groove 610 may also be formed at the center of the fastening part 600 in the longitudinal direction. Therefore, even if torque is generated in the operation unit 200 by a separate device and the fastening unit 600 rotates at a certain angle, when the fastening unit 600 passes through the third contact area 510c, the third contact The groove part 610 of the fastening part 600, not other parts of the fastening part 600, may come into contact with the region 510c.

In addition, the fastening part 600 may be cut along the longitudinal direction of the fastening part 600, and a plurality of cutout parts 620 may be formed along the outer surface of the fastening part 600 (FIG. 5(d)). , see (e)). In this case, the plurality of cutouts 620 may be arranged at predetermined angles along the outer surface of the fastening part 600 . In this way, when the cutout 620 is formed in the fastening part 600, the elastic force of the fastening part 600 can be further increased. Meanwhile, 1 to 6 incisions 620 may be formed, and the length of the incision 600 may be, for example, 0.05 to 5.0 mm.

Additionally, when the fastening part 600 is inserted into the first and second stop parts 520 and 530, the first and second contact areas 510a and 510b are recessed into curved surfaces to correspond to the outer circumferential surface of the fastening part 600. (See the enlarged view of FIG. 1B).

6 to 9 are cross-sectional views showing the operation process of the orthodontic bracket according to an embodiment of the present invention. Referring to these cross-sectional views, the operation process of the orthodontic bracket according to the present embodiment will be reviewed.

As shown in FIG. 6 , an orthodontic bracket in which the operating unit 200 opens the slot 140 is prepared. At this time, since the fastening part 600 is inserted into the first stop part 520 of the penetrating part 500 and supported by the protruding connection part 510, the operating part 200 is fixed with respect to the body 100 and arbitrarily. don't slide

Next, as shown in Figure 7, the wire (W) is inserted into the slot 140 of the body (100).

Next, as shown in FIG. 8 , when the operation unit 200 is pushed, the fastening unit 600 is moved from the first stop unit 520 and passes through the protruding connection unit 510 . At this time, the fastening part 600 may be deformed (bent) while passing through the connection part 510 . In addition, since the connecting portion 510 is formed to have a smaller area as it protrudes, the contact area of the connecting portion 600 is minimized while passing through the connecting portion 510 . Therefore, it is possible to prevent an excessive load from being applied to the fastening part 600 .

Next, as shown in FIG. 9 , when the operation part 200 is pushed continuously, the fastening part 600 is moved from the connection part 510 to the second stop part 530 and inserted. At this time, the operation unit 200 may completely close the slot 140 . In addition, since the fastening part 600 is inserted into the second stop part 530 and supported by the protruding connection part 510, the operation part 200 is fixed with respect to the body 100 and does not slide arbitrarily.

On the other hand, since the above process is a process of binding the wire (W) to the slot 140 of the body 100, it is possible to separate the wire (W) from the slot 140 of the body 100 through the opposite process.

Meanwhile, as shown in FIG. 10 , when viewed in cross section, the penetrating portion 500 may be formed symmetrically with respect to the imaginary line V. Here, the imaginary line V is perpendicular to the direction A in which the operating unit 200 slides at the center of the penetrating unit 500 (center with respect to the direction in which the operating unit 200 slides) (up and down). extended) lines. As a result, the penetrating portion 500 may be formed symmetrically so that the first stop portion 520 and the second stop portion 530 correspond to each other in size and shape based on the imaginary line V.

In addition, the first stop part 520 and the second stop part 530 of the penetrating part 500 have the same distance (D) in the vertical direction from the lowermost end of the penetrating part 500 (the central lower surface of the penetrating part 500). can be spaced apart. That is, the first stop portion 520 and the second stop portion 530 of the penetrating portion 500 may have the same height.

As described above, since the first and second stop parts 520 and 530 are formed symmetrically and have the same height, when the operating part 200 slides, the fastening part 600 is damaged due to a difference in load or malfunction occurs. occurrence can be prevented.

On the other hand, the fastening part 600 is deformed based on the longitudinal direction of the fastening part 600 while passing through the protruding connecting part 510 (bent, see FIG. It can be restored to (see Figs. 2c and 4c). At this time, the fastening part 600 is formed of a shape memory member (shape memory alloy or shape memory polymer), easily deformed below a predetermined temperature, and can be restored to its original shape in a straight line above a predetermined temperature. Therefore, during the procedure, the fastening part 600 is easily deformed below a predetermined temperature, so that the operation part 200 can be easily slid, and after the treatment, the fastening part 600 is restored to its original shape in a straight line at a predetermined temperature or higher in the oral cavity. Thus, the operation unit 200 is stably fixed and can be prevented from sliding randomly. At this time, the predetermined temperature may be, for example, 25 ° C to 37 ° C, but is not necessarily limited thereto.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, the present invention is not limited thereto, and within the technical spirit of the present invention, by those skilled in the art It is clear that modifications and improvements are possible.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

100: body 110: base
120: first extension 130: second extension
140: slot 200: operation unit
210: fastening hole 300: protrusion
400: depression 500: penetration
510: connection part 510a: first contact area
510b: second contact area 510c: third contact area
520: first stop 530: second stop
600: fastening part 610: groove part
620: cutout W: wire
V: imaginary line

Claims (20)

A base part having one surface fixed to a tooth, and a first extension part and a second extension part spaced apart from each other and extending in a direction away from the one surface of the base part, wherein the first extension part and the second extension part Between the body is formed a slot into which the wire is inserted;
an operating unit that is coupled to the body and faces and slides the second extension part to open and close the slot;
a penetrating portion formed to pass through the body and extending in a direction in which the operating portion slides; and
a fastening part provided in the operating part and extended in a rod shape to be inserted into the penetrating part;
including,
A connecting portion between both ends of the through portion protrudes from the upper surface of the through portion toward the lower surface of the through portion,
Among the penetrating portions, a first stop portion is formed at one end and a second stop portion is formed at the other end,
The connection portion is formed by protruding between the first stop portion and the second stop portion,
The connection part,
a first contact area protruding from an upper surface of the penetrating part toward a lower surface of the penetrating part and narrowing in width from the first stop part toward the second stop part;
a second contact area protruding from the upper surface of the penetrating part toward the lower surface of the penetrating part and narrowing in width from the second stop part toward the first stop part; and
a third contact area protruding from an upper surface of the through part toward a lower surface of the through part to connect the first contact area and the second contact area;
Including,
The fastening portion is an orthodontic bracket in which a recessed groove portion is formed to correspond to the third contact area.
delete The method of claim 1,
When the operation part opens the slot, the fastening part is inserted into the first stop part,
When the operating part closes the slot, the fastening part is inserted into the second stop part.
The method of claim 1,
The fastening portion passes through the connecting portion when moved from the first stop to the second stop, or when moved from the second stop to the first stop;
Orthodontic brackets that are deformed while passing through the connecting portion of the fastening portion.
delete delete The method of claim 1,
The third contact area is an orthodontic bracket having a constant width.
The method of claim 1,
The third contact area is an orthodontic bracket that protrudes by a predetermined size from the upper surface of the penetrating part toward the lower surface of the penetrating part.
The method of claim 1,
When viewed in the longitudinal direction of the fastening part, the width of the connection part is smaller than the width of the penetrating part orthodontic bracket.
The method of claim 1,
Orthodontic brackets in which the lower surface of the through part is curved and depressed in a downward direction as much as the connection part protrudes from the upper surface of the through part toward the lower surface of the through part.
delete The method of claim 1,
The fastening portion is formed in a hollow orthodontic bracket.
The method of claim 1,
The fastening part is cut along the longitudinal direction of the fastening part, and an orthodontic bracket in which a plurality of incisions are formed along the outer surface of the fastening part.
The method of claim 1,
The fastening part is stainless steel, a nickel-titanium (Ni-Ti) based alloy, a copper-nickel-titanium (Cu-Ni-Ti) based alloy, a cobalt-chrome-molybdenum (Co-Cr-Mo) based alloy , or orthodontic brackets formed from shape memory polymers.
The method of claim 1,
A protrusion is formed to protrude from the second extension toward the operating unit,
A recessed part is formed to be recessed from the operating part facing the body,
Orthodontic brackets in which the protruding portion and the recessed portion are coupled in a dovetail shape.
The method of claim 1,
The orthodontic bracket of claim 1 , wherein the penetrating portion is formed symmetrically with respect to an imaginary line perpendicular to a direction in which the operating unit slides at the center of a direction in which the operating unit slides.
The method of claim 1,
The first stop and the second stop are orthodontic brackets spaced the same distance from the lowermost end of the penetrating part in the vertical direction.
The method of claim 1,
The fastening part is an orthodontic bracket formed of a wire or bar.
The method of claim 1,
The fastening part is formed of a shape memory member, and the orthodontic bracket is restored to a straight line at a predetermined temperature or higher.
The method of claim 15
A first fastening hole and a second fastening hole are formed on both sides of the recessed part of the operating part so that the fastening part is coupled,
The first fastening hole passes through, and the second fastening hole has an end closed end orthodontic bracket.

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