Special orthodontic arch wire for weak anchorage

Abstract

The utility model relates to the technical field of orthodontic arch wires, in particular to a special orthodontic arch wire for weak anchorage, which comprises an arch wire body, two semi-spheres capable of holding tightly are arranged at the tail end of the arch wire body, and cavities capable of wrapping the tail end of the arch wire body are arranged in the semi-spheres. A supporting block which can be tightly held on the arch wire body is arranged on the semi-sphere, and a clamping assembly which is used for enabling the semi-sphere and the supporting block to clamp the arch wire body is arranged on the supporting block. The tail end, extending out of the metal bracket, of the arch wire body is wrapped by the two semi-spheres, so that the tail end of the arch wire body extends into the cavity, and the phenomenon that the tail end of the arch wire body is stressed to deform and tilt to puncture the mouth of a patient during weak anchorage orthodontics is avoided.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic archwire technology, specifically to an orthodontic archwire for weak anchorage. Background Technology

[0002] During orthodontic treatment, any force applied to the treated tooth to move it will simultaneously generate a force of the same magnitude but in the opposite direction. The reaction force supporting this tooth movement is called "anchorage." Based on the proportion of anterior and posterior tooth movement when closing the space, anchorage is classified into three types: strong, medium, and weak. Weak anchorage occurs when most of the extraction space is occupied by the anterior movement of the posterior teeth, with less posterior movement of the anterior teeth. The proportions of anterior and posterior teeth utilizing the extraction space are 40% and 60%, respectively. Anchorage devices and archwires are used as auxiliary devices during orthodontic treatment.

[0003] In existing weak anchorage orthodontic treatments, after the archwire is installed in the patient's mouth, the end of the archwire protrudes from the metal bracket used to install it. The dentist will trim or bend the end of the archwire. However, because the posterior teeth move forward more in weak anchorage, the end of the archwire is prone to deformation and lifting under stress. As the treatment time increases, the end of the archwire may still protrude from the metal bracket, which may easily injure the mouth of the orthodontic patient. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a special orthodontic archwire for weak anchorage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A special orthodontic archwire for weak anchorage includes an archwire body, the end of which is provided with two hemispheres that can be held tightly, the hemispheres having cavities that can wrap around the end of the archwire body, the hemispheres having supports that can be held tightly on the archwire body, and the supports having clamping components for clamping the hemispheres and supports to clamp the archwire body.

[0007] Furthermore, the clamping assembly includes fixing blocks symmetrically arranged on the corresponding support blocks, the fixing blocks having grooves, and rubber straps between the grooves for clamping the archwire body between the hemisphere and the support blocks.

[0008] Furthermore, the edge of the fixing block is provided with a rounded corner to prevent scratching the oral cavity.

[0009] Furthermore, one hemisphere has multiple evenly arranged insertion holes on its end face, and the other hemisphere has a insertion rod that can be inserted into the corresponding insertion hole on its end face.

[0010] Furthermore, the sides of the support blocks that are spliced ​​together are provided with grooves that fit against the archwire body, and the sidewalls of the grooves are provided with protrusions for squeezing the archwire body.

[0011] Furthermore, the surface of the hemisphere is provided with a semi-circular cavity for fitting with the surface of the archwire body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, the arrangement of the hemispheres and the cavity allows the two hemispheres to wrap around the end of the archwire body that extends from the metal bracket, so that the end of the archwire body extends into the cavity, thereby preventing the end of the archwire body from deforming and lifting under force during weak anchorage orthodontics, which could injure the patient's mouth.

[0014] 2. In this utility model, by setting up fixing blocks, grooves and rubber cable ties, after the hemisphere wraps around the end of the archwire body, the support block also fits into the archwire body. Then, by using rubber cable ties to fit into the grooves set on the two fixing blocks, the support block and the hemisphere are tightly held on the archwire body, preventing the spliced ​​hemisphere from detaching from the archwire body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a special orthodontic archwire for weak anchorage in this utility model.

[0016] Figure 2 This is a cross-sectional view of a special orthodontic archwire for weak anchorage according to this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model without the bowwire body.

[0018] Figure 4 This is a schematic diagram of the structure of the present invention when the hemisphere and the support block are not tightly gripping the archwire body.

[0019] The meanings of the labels in the diagram are as follows: 1. Bowwire body; 2. Hemisphere; 3. Cavity; 4. Support block; 100. Fixing block; 101. Groove; 102. Rubber cable tie; 103. Rounded corner; 200. Insertion hole; 201. Insert rod; 202. Hemisphere cavity; 203. Groove. Detailed Implementation

[0020] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0021] The following is in conjunction with the appendix Figures 1-4 This embodiment will be described in further detail.

[0022] Please see Figures 1-4 In this embodiment, a special orthodontic archwire for weak anchorage includes an archwire body 1. The end of the archwire body 1 is provided with two hemispherical balls 2 that can be held tightly. The hemispherical balls 2 are provided with cavities 3 that can wrap around the end of the archwire body 1. The hemispherical balls 2 are provided with support blocks 4 that can be held tightly on the archwire body 1. The support blocks 4 are provided with clamping components for clamping the hemispherical balls 2 and the support blocks 4 to the archwire body 1.

[0023] In this embodiment, by setting up the archwire body 1, the hemispheres 2 and the cavity 3, when the archwire body 1 is used, it is first installed in the metal bracket that has been installed on the teeth. Then, the two hemispheres 2 are spliced ​​together to wrap the end of the archwire body 1 that extends out of the metal bracket, so that the end of the archwire body 1 extends into the cavity 3, thereby avoiding the end of the archwire body 1 from piercing the patient's mouth.

[0024] In this embodiment, as Figure 4 As shown, by setting up the support block 4 and the clamping assembly, the support block 4 is fixedly connected to the surface of the hemisphere 2. The support block 4 is in the shape of a semi-cylinder. Thus, when the two hemispheres 2 are spliced ​​together to wrap around the end of the archwire body 1, the two support blocks 4 also form a cylinder that hugs the outside of the archwire body 1. At this time, the clamping assembly makes the two support blocks 4 hug the archwire body 1, which can better realize the assembly between the two hemispheres 2.

[0025] In this embodiment, the hemisphere 2 and the support block 4 can be made of transparent silicone material. The material makes it less likely to pierce the mouth when they are held tightly at both ends of the archwire body 1, thereby improving comfort. The hemisphere 2 has a certain thickness to prevent it from being pierced by the end of the archwire body 1. Of course, in actual use, in order to prevent the spliced ​​hemisphere 2 from detaching from the end of the archwire body 1, the end of the archwire body 1 needs to be bent back. At this time, the bent end of the archwire body 1 is not easy to detach from the cavity 3.

[0026] Please see Figures 3-4 In this embodiment, the clamping assembly includes a fixing block 100 symmetrically arranged on the corresponding support block 4. The fixing block 100 is provided with a groove 101, and a rubber cable tie 102 is provided between the grooves 101 to clamp the archwire body 1 between the hemisphere 2 and the support block 4.

[0027] In this embodiment, the fixing block 100, the groove 101, and the rubber cable tie 102 are used to fix the fixing block 100 to the support block 4. The fixing blocks 100 are positioned opposite each other on the same support block 4. The openings of the grooves 101 all face away from the sides where the support blocks 4 are joined. For example... Figure 4As shown, the sides of the support block 4 that are spliced ​​together are provided with grooves 203 that fit with the bow wire body 1. When the two hemispheres 2 wrap around the end of the bow wire body 1, the grooves 203 on the support block 4 also fit with the bow wire body 1. At this time, the rubber cable ties 102 are then placed between the grooves 101 that are set opposite to each other on the two fixing blocks 100, so that the support block 4 and the hemispheres 2 are tightly held on the bow wire body 1, thus realizing the splicing of the two hemispheres 2.

[0028] Please see Figures 1-4 In this embodiment, the edge of the fixing block 100 is provided with a rounded corner 103 to prevent scratching the oral cavity.

[0029] In this embodiment, by setting the arc angle 103, the edge of the fixing block 100 can increase the contact area with the oral cavity, avoid scratching the oral cavity, and at the same time reduce the patient's discomfort.

[0030] Please see Figures 1-4 In this embodiment, a plurality of evenly arranged insertion holes 200 are provided on the end face of one hemisphere 2, and a insertion rod 201 that can be inserted into the corresponding insertion hole 200 is provided on the end face of the other hemisphere 2.

[0031] In this embodiment, the insertion hole 200 and the insertion rod 201 allow the two hemispheres 2 to be quickly fitted together to form a complete sphere when they are assembled, so that the two hemispheres 2 can be quickly fitted together to form a complete sphere that wraps around the end of the archwire body 1, making it easier for the doctor to operate. At the same time, the insertion rod 201 into the insertion hole 200 can prevent misalignment between the two hemispheres 2, which would affect the effectiveness of the use.

[0032] Please see Figures 1-4 In this embodiment, the sidewall of the groove 203 is provided with protrusions for pressing the bowwire body 1.

[0033] In this embodiment, the protrusions are supported by silicone material. When the support blocks 4 are spliced ​​together, the friction between the groove 203 and the archwire body 1 can be increased, so that the support blocks 4 can better hold the archwire body 1 and avoid falling off.

[0034] Please see Figures 1-4 In this embodiment, the surface of the hemisphere 2 is provided with a hemisphere cavity 202 for fitting with the surface of the bowwire body 1.

[0035] In this embodiment, the semicircular cavity 202 is correspondingly provided with the corresponding groove 203. By providing the semicircular cavity 202, after the two hemispheres 2 are tightly bound together, the semicircular cavity 202 can be spliced ​​into a complete circle so that the archwire body 1 can be inserted into the cavity 3. Under the action of the rubber cable tie 102, the hemispheres 2 can also tightly bind the archwire body 1, further strengthening the binding and preventing it from falling off.

[0036] Working principle: When using this weak anchorage orthodontic archwire, the archwire body 1 is first installed in the metal bracket already installed on the tooth, and the end of the archwire body 1 is bent back. Then, the insert 201 is inserted into the insertion hole 200, so that the two hemispheres 2 are spliced ​​together, wrapping the end of the archwire body 1 that extends from the metal bracket. Then, the rubber cable tie 102 is placed in the groove 101 on the corresponding fixing block 100, so that the bracket 4 and the hemispheres 2 hold the archwire body 1 tightly, preventing the two spliced ​​hemispheres 2 from falling off.

[0037] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A special orthodontic archwire for weak anchorage, comprising an archwire body (1), characterized in that: The end of the archwire body (1) is provided with two hemispheres (2) that can be held tightly. The hemispheres (2) are provided with cavities (3) that can wrap the end of the archwire body (1). The hemispheres (2) are provided with blocks (4) that can be held tightly on the archwire body (1). The blocks (4) are provided with clamping components for clamping the hemispheres (2) and blocks (4) to the archwire body (1).

2. The orthodontic archwire for weak anchorage according to claim 1, characterized in that: The clamping assembly includes a fixing block (100) symmetrically arranged on the corresponding support block (4), the fixing block (100) is provided with a groove (101), and a rubber cable tie (102) is provided between the grooves (101) for clamping the archwire body (1) between the hemisphere (2) and the support block (4).

3. The orthodontic archwire for weak anchorage according to claim 2, characterized in that: The edge of the fixing block (100) is provided with a rounded corner (103) to prevent scratching the oral cavity.

4. The orthodontic archwire for weak anchorage according to claim 3, characterized in that: One hemisphere (2) has multiple evenly arranged insertion holes (200) on its end face, and the other hemisphere (2) has a insertion rod (201) that can be inserted into the corresponding insertion hole (200) on its end face.

5. The orthodontic archwire for weak anchorage according to claim 1, characterized in that: The side of the support block (4) is provided with a groove (203) that fits against the bow wire body (1), and the side wall of the groove (203) is provided with protrusions for squeezing the bow wire body (1).

6. The orthodontic archwire for weak anchorage according to claim 5, characterized in that: The surface of the hemisphere (2) is provided with a hemisphere cavity (202) for fitting with the surface of the bowwire body (1).

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