A set of orthodontic traction clasp forming pliers

By designing a traction buckle forming pliers for clear aligners, and utilizing staggered hinged pliers arms and adjustable punching holes, the problems of complex operation and risk of detachment in existing technologies are solved. This enables the rapid forming of traction buckles on clear aligners, improving traction effect and ease of operation.

CN224269464UActive Publication Date: 2026-05-26HANGZHOU AIXINYA MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU AIXINYA MEDICAL TECH CO LTD
Filing Date
2025-01-24
Publication Date
2026-05-26

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Abstract

This utility model relates to a traction buckle forming pliers for invisible orthodontic appliances, including a first plier arm and a second plier arm that are hinged in an alternating manner. The first plier arm has a first plier head and a first handle located on both sides of the hinge point. The second plier arm has a second plier head and a second handle located on both sides of the hinge point. The second plier head is provided with a movable part that is movably connected thereto. The movable part has a punch with adjustable depth. The first plier head is provided with a punch for inserting into the punch. When the first plier arm and the second plier arm rotate relative to each other around the hinge point, the punch moves in a relatively linear direction along the depth direction of the punch to exit or insert into the punch. The contour shape of the punch and the punch satisfies the following: a part of the side surface of the punch matches and fits the inner wall of the punch, and there is a space between the other part and the inner wall of the punch for accommodating the diaphragm of the invisible orthodontic appliance. The depth of the punch is not less than the height of the punch, forming a protruding structure with edge cuts.
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Description

Technical Field

[0001] This utility model relates to the field of oral medical device technology, and in particular to a traction buckle forming forceps for invisible orthodontic appliances. Background Technology

[0002] In the current process of invisible orthodontic treatment, it is usually necessary to design traction components on the braces to assist in the downward, elongation, and rotation of the teeth during the orthodontic process. Generally, traction components such as lingual clips and traction clips are glued to the teeth or braces, and then the teeth are moved by applying orthodontic force through the suspension of elastic rubber bands.

[0003] However, attaching traction devices such as lingual clips or traction buckles to teeth or traditional braces has the following drawbacks:

[0004] (1) It is time-consuming and increases the difficulty of the doctor's operation. It requires a series of treatments such as acid etching and moisture isolation on the teeth or braces.

[0005] (2) There is a risk of the traction component falling off.

[0006] To reduce the difficulty and the risk of the traction device falling off, an incision can be made in one brace of the upper and lower aligners, and a window can be made in the other brace to attach the traction device to the corresponding tooth. A flexible rubber band connects the incision and the traction device to generate traction. However, this incision-window type traction also has the following problems: because the incision is close to the tooth surface, it is not easy to attach the flexible rubber band, requiring manual bending of the incision outwards; and the tip of the incision may cause discomfort to the oral mucosa.

[0007] Currently, the function of medical forceps for clear aligners is only to drill holes in the clear aligners, which cannot further improve the clear aligners. Therefore, there is an urgent need to design a clear aligner traction buckle forming forceps that can form a traction structure on the clear aligner in one step that can hold elastic rubber bands and is different from the incision, in order to overcome the above problems. Utility Model Content

[0008] The purpose of this utility model is to overcome the defects of the existing technology and provide a traction buckle forming pliers for invisible orthodontic devices.

[0009] The objective of this utility model can be achieved through the following technical solutions:

[0010] The present invention provides a traction buckle forming pliers for invisible orthodontic appliances, comprising a first plier arm and a second plier arm that are hinged together. The first plier arm has a first plier head and a first handle located on both sides of its hinge point with the second plier arm. The second plier arm has a second plier head and a second handle located on both sides of its hinge point with the first plier arm. The second plier head is provided with a movable component connected thereto, and the movable component has a depth-adjustable punch. The first plier head is provided with a punch for inserting into the punch. When the first plier arm and the second plier arm rotate relative to each other around the hinge point, the punch moves in a relatively linear direction along the depth direction of the punch to exit or insert into the punch. The contour shape of the punch and the punch satisfies the following: a part of the side surface of the punch matches and fits the inner wall of the punch, and another part has a space between it and the inner wall of the punch for accommodating the diaphragm of the invisible orthodontic appliance. The depth of the punch is not less than the height of the punch.

[0011] In some specific embodiments, 1 / 3 to 2 / 3 of the punch side surface is matched and fitted with the inner wall of the punch hole.

[0012] In some specific embodiments, the width of the space is 0.3 to 1.5 mm.

[0013] In some specific embodiments, the height of the punch is 0.5-3.5mm.

[0014] In some specific embodiments, the movable part is provided with a hole depth limiting member for inserting into the punch. The end face of the hole depth limiting member inserted into the punch is closely attached to the inner wall of the punch, so that during stamping, the end face of the hole depth limiting member inserted into the punch abuts against the punch to form a traction buckle structure.

[0015] In some specific embodiments, the first clamp head is provided with a guide hole, and the movable part is provided with a guide post inserted into the guide hole. The guide hole is in the same depth direction as the punch hole. When the first clamp arm and the second clamp arm rotate relative to each other around the hinge point, the guide post slides in the guide hole.

[0016] In some specific embodiments, the guide post is provided with a guide limiting hole in the same direction as the hole depth of the punch, and the first clamp head is provided with a guide limiting member that passes through the guide hole and the guide limiting hole, so that when the first clamp arm and the second clamp arm rotate relative to each other around the hinge point, the guide post slides linearly in the guide hole.

[0017] In some specific embodiments, the guide limiting member and the first clamp head are detachably connected.

[0018] In some specific embodiments, the guide limiting member includes a T-bolt and a nut that mates with the T-bolt. After the shank end of the T-bolt passes through the guide hole and the guide limiting hole, it is threadedly connected to the nut.

[0019] In some specific embodiments, the bottom of the movable part is provided with a first arc-shaped groove, the second clamp head is located in the first arc-shaped groove, and the upper end face of the second clamp head is a first arc surface that fits with the first arc-shaped groove. When the first clamp arm and the second clamp arm rotate around the hinge point, the first arc surface abuts against the groove wall of the first arc-shaped groove and drives the movable part to move.

[0020] In some specific embodiments, the second clamping head is provided with a second arc-shaped groove on the side wall near the first clamping head, which is connected to the first arc surface. The end of the first arc-shaped groove near the side wall of the first clamping head is a second arc surface that protrudes outward. When the first clamping arm and the second clamping arm rotate around the hinge point, the first arc surface abuts against the second arc surface and drives the side wall of the first arc-shaped groove near the first clamping head to extend into the second arc-shaped groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) By using the invisible aligner traction buckle forming forceps of this utility model, a raised structure with edge cuts can be formed at any position on the invisible aligner in one step, which is used as a traction buckle to hang the elastic rubber band, thereby achieving effective traction force on the teeth, filling the gap in the market for this type of dental forceps.

[0023] (2) The invisible orthodontic device traction buckle forming pliers of this utility model transforms the rotational relationship between the first plier arm and the second plier arm into a linear motion of the punch moving along the depth direction of the punch hole, which effectively avoids the deviation between the punch and the punch hole, making the formed protrusion structure more regular and easier for medical staff to operate.

[0024] (3) On the one hand, the height of the protrusion of the traction buckle structure can be adjusted by controlling the height of the punch. On the other hand, the depth of the punch can be flexibly adjusted, which makes it easier to process traction buckles with different protrusion heights on invisible orthodontic appliances, greatly expanding the application scope of this utility model. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the invisible orthodontic device traction buckle forming pliers of this utility model.

[0026] Figure 2 This is a partial enlarged view of the traction buckle forming pliers of the invisible orthodontic device of this utility model.

[0027] Figure 3 This is another enlarged view of the traction buckle forming clamp of the invisible orthodontic device of this utility model.

[0028] Figure 4 This is a schematic diagram of the planar projection of the punch and punch hole in the traction buckle forming pliers of the invisible orthodontic device of this utility model.

[0029] Figure 5 This is a schematic diagram of the structure of the traction buckle formed product obtained by the traction buckle forming pliers of the invisible orthodontic device of this utility model.

[0030] The diagram is labeled as follows:

[0031] 1 is the first handle, 2 is the first clamp arm, 3 is the first clamp head, 3-1 is the punch, 4 is the second handle, 5 is the second clamp arm, 6 is the second clamp head, 6-1 is the first arc surface, 6-2 is the second arc groove, 7 is the movable part, 7-1 is the punch, 7-2 is the first arc groove, 7-3 is the second arc surface, 7-4 is the hole depth limiting part, 8 is the guide post, 9 is the guide limiting part, 10 is the guide hole, 11 is the guide limiting hole, and 12 is the space. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] In the following embodiments, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0036] Example 1:

[0037] like Figures 1-4The image shows a traction buckle forming pliers for invisible orthodontic treatment, comprising a first clamp arm 2 and a second clamp arm 5 hinged in an alternating manner. The first clamp arm 2 has a first clamp head 3 and a first handle 1 located on both sides of its hinge point with the second clamp arm 5. The second clamp arm 5 has a second clamp head 6 and a second handle 4 located on both sides of its hinge point with the first clamp arm 2. The second clamp head 6 is provided with a movable part 7 movably connected thereto, and the movable part 7 is provided with a depth-adjustable punch 7-1. The first clamp head 3 is provided with a punch 3-1 for inserting into the punch 7-1. When the first clamp arm 2 and the second clamp arm 5 rotate relative to each other around the hinge point, the punch 3-1 moves in a relatively linear direction along the depth direction of the punch hole 7-1 to exit or insert into the punch hole 7-1. The contour shape of the punch 3-1 and the punch hole 7-1 satisfies the following: a part of the side surface of the punch 3-1 matches and fits the inner wall of the punch hole 7-1, and there is a space 12 between the other part and the inner wall of the punch hole 7-1 for accommodating the invisible orthodontic diaphragm. The depth of the punch hole 7-1 is not less than the height of the punch 3-1.

[0038] Understandably, punch 3-1 needs to press the clear aligner diaphragm into punch 7-1. The part of the punch 3-1 that matches and adheres to the inner wall of punch 7-1 cuts the clear aligner diaphragm to form an incision. The other part leaves space 12 to accommodate the clear aligner diaphragm, which is used to form a raised structure, such as... Figure 5 As shown.

[0039] The shape of the punch 3-1 is not limited and can be teardrop-shaped, round, elliptical, rectangular, triangular, etc., with teardrop-shaped being preferred, and the direction of its pointed tip can be arbitrary.

[0040] The end face of the punch 3-1 is preferably flat, which can form a raised structure with a flat end face during stamping, effectively preventing the edge of the cut from lifting or shrinking, thus causing discomfort to the oral mucosa or affecting the traction of the elastic rubber band.

[0041] This technical solution utilizes the space 12 reserved when the punch 3-1 is inserted into the punch hole 7-1 to shear the diaphragm of the invisible orthodontic appliance at the part where the punch 3-1 and the arc surface of the punch hole 7-1 meet, while the other part protrudes and deforms, forming a shape like... Figure 5 The raised structure with edge cuts shown is used as a traction buckle and can serve as a fulcrum for hanging elastic rubber bands. The invisible aligner traction buckle forming pliers provided by this utility model can form a raised structure with edge cuts on the invisible aligner in one step. The formed structure can effectively replace the traction buckles, tongue buckles, single cuts, etc. that need to be glued. The invisible aligner traction buckle forming pliers are convenient, quick and effective in use.

[0042] The arc length of the traction buckle cut is related to the arc surface mating portion of the side surface of the punch 3-1 and the inner wall of the punch hole 7-1. If there is too much arc surface mating portion, it indicates that the arc length of the cut is too long and the connecting portion is too short, which may cause deformation or breakage due to the traction of the elastic rubber ring. If there is too little arc surface mating portion, it indicates that the arc length of the cut is too short and insufficient as a fulcrum for holding the elastic rubber ring. Therefore, 1 / 3 to 2 / 3 of the side surface of the punch 3-1 matches and fits the inner wall of the punch hole 7-1. Preferably, when the punch 3-1 is inserted into the punch hole 7-1, half of the arc surface of the punch 3-1 mates with the inner wall of the punch hole 7-1, and there is a space 12 between the other half of the arc surface of the punch 3-1 and the inner wall of the punch hole 7-1. The width of the space 12 is 0.3 to 1.5 mm, which can be understood as the distance between the side surface of the punch 3-1 and the inner wall of the punch hole 7-1.

[0043] The height of punch 3-1 is related to the height of the traction buckle protrusion. If the height of punch 3-1 is too high, it indicates that the protrusion is too high, which may cause discomfort to the oral mucosa. If the height of punch 3-1 is too low, it indicates that the protrusion is too low and is not enough to serve as a fulcrum for attaching the elastic rubber band. Therefore, the height of punch 3-1 is 0.5-3.5mm.

[0044] In this embodiment, the height of the traction buckle protrusion structure can also be controlled by adjusting the depth of the punch 7-1. The movable member 7 is provided with a hole depth limiting member 7-4 for inserting into the punch 7-1. The end face of the hole depth limiting member 7-4 inserted into the punch 7-1 closely fits the inner wall of the punch 7-1. Therefore, when the hole depth limiting member 7-4 is inserted into the punch 7-1 to adjust the depth of the punch 7-1, the contour shape of the punch 3-1 and the punch 7-1 is not affected. This ensures that during stamping, the end face of the hole depth limiting member 7-4 inserted into the punch 7-1 abuts against the punch 3-1 to form the protrusion structure of the traction buckle. For example, the depth of the punch 7-1 can be adjusted by inserting the hole depth limiting member 7-4 into the punch 7-1 through stamping.

[0045] The first clamp head 3 is provided with a guide hole 10, and the movable part 7 is provided with a guide post 8 that is inserted into the guide hole 10. The guide hole 10 is in the same depth direction as the punch 7-1. When the first clamp arm 2 and the second clamp arm 5 rotate relative to each other around the hinge point, the guide post 8 slides in the guide hole 10, which effectively prevents the movable part 7 from being tilted at an angle as the second clamp head 6 rotates during the insertion of the punch head 3-1 into the punch 7-1.

[0046] The guide post 8 is provided with a guide limiting hole 11 in the same direction as the hole depth of the punch 7-1. The first clamp head 3 is provided with a guide limiting member 9 that penetrates the guide hole 10 and the guide limiting hole 11, so that when the first clamp arm 2 and the second clamp arm 5 rotate relative to each other around the hinge point, the guide post 8 slides linearly in the guide hole 10. That is, the guide limiting member 9 further limits the degree of offset of the guide post 8 in the guide hole 10, so that the punch head 3-1 and the punch 7-1 can move closer or further away in a straight line.

[0047] The guide limiting member 9 is detachably connected to the first clamp head 3, facilitating the replacement of movable parts 7 with different punch sizes 7-1 to accommodate invisible orthodontic appliances of different thicknesses. For example, the guide limiting member 9 includes a T-bolt and a nut that mates with the T-bolt. After the shank end of the T-bolt passes through the guide hole 10 and the guide limiting hole 11, it is threadedly connected to the nut.

[0048] When the first clamp arm 2 and the second clamp arm 5 rotate around their hinge point, to prevent the angle of their rotation from affecting the linear movement of the punch 3-1 and the punch hole 7-1, the bottom of the movable part 7 is provided with a first arc-shaped groove 7-2. The second clamp head 6 is located within the first arc-shaped groove 7-2, and the upper end face of the second clamp head 6 is a first arc surface 6-1 that fits against the first arc-shaped groove 7-2. When the first clamp arm 2 and the second clamp arm 5 rotate around the hinge point, the first arc surface 6-1 abuts against the groove wall of the first arc-shaped groove 7-2, causing the movable part 7 to move. By setting the first arc-shaped groove 7-2 and the first arc surface 6-1, the rotation angle of the movable part 7 is made smaller than the rotation angle of the second clamp head 6. Therefore, the rotational relationship between the first clamp arm 2 and the second clamp arm 5 is transformed into a linear movement of the punch 3-1 along the depth direction of the punch hole 7-1.

[0049] The second clamp head 6 has a second arcuate groove 6-2 on its side wall near the first clamp head 3, which connects to the first arcuate surface 6-1. The end of the first arcuate groove 6-2 near the side wall of the first clamp head 3 is a second arcuate surface 7-3 that protrudes outward. When the first clamp arm 3 and the second clamp arm 5 rotate around the hinge point, the first arcuate surface 6-1 abuts against the second arcuate surface 7-3, causing the first arcuate groove 7-2 to extend into the second arcuate groove 6-2 near the side wall of the first clamp head 3. The second arcuate groove 6-2 prevents the second clamp head 6 from interfering with the moving part 7 when the first clamp arm 3 and the second clamp arm 5 rotate around the hinge point.

[0050] Example 2:

[0051] For example Figure 5The traction buckle structure shown in this embodiment provides a method for forming the traction buckle using the invisible orthodontic traction buckle forming pliers of Embodiment 1, including the following steps:

[0052] (1) Adjust the length of the hole depth limiter 7-4 inserted into the punch 7-1 to determine the depth of the punch 7-1;

[0053] (2) Place the invisible orthodontic diaphragm between the punch 3-1 and the punch 7-1, and rotate the first clamp arm 2 and / or the second clamp arm 5 so that the first clamp arm 2 and the second clamp arm 5 rotate around their hinge point, thereby making the first clamp head 3 and the movable part 7 make relative linear motion.

[0054] (3) Continue to rotate the first clamp arm 2 and / or the second clamp arm 5 so that the punch 3-1 presses the invisible aligner diaphragm into the punch hole 7-1. The part where the side surface of the punch 3-1 meets the arc surface of the inner wall of the punch hole 7-1 causes the invisible aligner diaphragm to be cut, forming a slit. The other part of the space 12 accommodates the invisible aligner diaphragm, causing it to bulge and deform under the punching action of the punch 2, thereby forming a bulging structure with edge slits on the invisible aligner diaphragm, which is the traction buckle structure.

[0055] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A type of invisible orthodontic traction buckle forming pliers, characterized in that, The device includes a first clamp arm (2) and a second clamp arm (5) that are hinged together. The first clamp arm (2) has a first clamp head (3) and a first handle (1) located on both sides of the hinge point between it and the second clamp arm (5). The second clamp arm (5) has a second clamp head (6) and a second handle (4) located on both sides of the hinge point between it and the first clamp arm (2). The second clamp head (6) is provided with a movable part (7) that is movably connected thereto. The movable part (7) is provided with a depth-adjustable punch (7-1). The first clamp head (3) is provided with a punch (3-1) for inserting into the punch (7-1). When the first clamp arm (2) and the second clamp arm (5) rotate relative to each other around the hinge point, the punch (3-1) moves in a relatively linear direction along the depth direction of the punch (7-1) to exit or insert into the punch (7-1). The outline shape of the punch (3-1) and the punch (7-1) satisfies the following: a part of the side surface of the punch (3-1) matches and fits the inner wall of the punch (7-1), and another part has a space (12) between it and the inner wall of the punch (7-1) for accommodating the invisible orthodontic diaphragm. The depth of the punch (7-1) is not less than the height of the punch (3-1).

2. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, One-third to two-thirds of the side surface of the punch (3-1) is matched and fitted with the inner wall of the punch (7-1).

3. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, The width of the space (12) is 0.3~1.5 mm.

4. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, The height of the punch (3-1) is 0.5-3.5 mm.

5. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, The movable part (7) is provided with a hole depth limiting part (7-4) that is inserted into the punch (7-1) and adjusts the hole depth of the punch (7-1). The end face of the hole depth limiting part (7-4) inserted into the punch (7-1) is closely attached to the inner wall of the punch (7-1) so that during stamping, the end face of the hole depth limiting part (7-4) inserted into the punch (7-1) abuts against the punch (3-1) to form the traction buckle structure.

6. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, The first clamp head (3) is provided with a guide hole (10), and the movable part (7) is provided with a guide post (8) inserted into the guide hole (10). The guide hole (10) and the punch (7-1) have the same depth direction. When the first clamp arm (2) and the second clamp arm (5) rotate relative to each other around the hinge point, the guide post (8) slides in the guide hole (10).

7. The invisible orthodontic traction buckle forming pliers according to claim 6, characterized in that, The guide post (8) is provided with a guide limiting hole (11) in the same direction as the hole depth of the punch (7-1), and the first clamp head (3) is provided with a guide limiting member (9) that passes through the guide hole (10) and the guide limiting hole (11), so that when the first clamp arm (2) and the second clamp arm (5) rotate relative to each other around the hinge point, the guide post (8) slides linearly in the guide hole (10).

8. The invisible orthodontic traction buckle forming pliers according to claim 7, characterized in that, The guide limiting member (9) includes a T-bolt and a nut that mates with the T-bolt. When the end of the shank of the T-bolt passes through the guide hole (10) and the guide limiting hole (11), it is threadedly connected to the nut.

9. The invisible orthodontic traction buckle forming pliers according to claim 1, characterized in that, The bottom of the movable part (7) is provided with a first arc groove (7-2), and the second clamp head (6) is located in the first arc groove (7-2). The upper end face of the second clamp head (6) is a first arc surface (6-1) that fits against the first arc groove (7-2). When the first clamp arm (2) and the second clamp arm (5) rotate around the hinge point, the first arc surface (6-1) abuts against the groove wall of the first arc groove (7-2) and drives the movable part (7) to move.

10. The invisible orthodontic traction buckle forming pliers according to claim 9, characterized in that, The second clamp head (6) has a second arc-shaped groove (6-2) on one side wall near the first clamp head (3) that connects to the first arc surface (6-1). The first arc-shaped groove (7-2) has an outwardly protruding second arc surface (7-3) at one end of the side wall near the first clamp head (3). When the first clamp arm (2) and the second clamp arm (5) rotate around the hinge point, the first arc surface (6-1) abuts against the second arc surface (7-3) and drives the first arc-shaped groove (7-2) to extend into the second arc-shaped groove (6-2) at one side wall near the first clamp head (3).