A double loop locking form ligature loop

Abstract

The utility model discloses a double -loop locking solid ligature ring. It includes mutually connected into the first lock loop and second lock loop of sheet shape, first lock loop is composed of first ring pad and the first through -hole in first ring pad middle, second lock loop is composed of second ring pad and the second through -hole in second ring pad middle, the distance between first through -hole and second through -hole is 0.5~0.7mmmm, and forms interval pad between first through -hole and second through -hole.

Description

Technical Field

[0001] This utility model relates to a ligation ring, and in particular discloses a double-ring locking ligation ring. Background Technology

[0002] In fixed orthodontic treatment, ligatures are crucial accessories used to securely fasten the archwire within the bracket grooves, thereby transmitting corrective forces. Currently, the traditional O-shaped single-loop ligature is widely used in clinical practice. However, this existing single-loop structure has the following inherent drawbacks: 1. Single-point locking, easy to slip out: Relying on the elastic force of only a closed ring for fixation, under the long-term action of complex chewing movements in the oral cavity and the deformation force of the archwire, it is easy to rotate, slip out or even break, causing the archwire to fall out of the bracket, affecting the orthodontic effect and increasing the frequency of follow-up visits.

[0003] 2. Rapid force decay: Single-loop ligatures are prone to stress relaxation in the intraoral environment, which leads to a significant decrease in the ligature force on the archwire over time, making it impossible to maintain a stable light-force orthodontic environment.

[0004] 3. Dead zones exist: A single ligature can only provide fixation around the outer perimeter of the four wings of the bracket. The middle part of the four wings lacks fixation support, especially in the corners and between the two lateral wings, creating dead zones. This results in poor fixation and can easily affect the precise movement of the teeth. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a double-ring locking ligature that has strong locking force, is not easy to slip out, and can provide continuous and stable corrective force.

[0006] This utility model is implemented as follows: a double-ring locking ligature includes a first locking ring and a second locking ring that are connected to each other in a sheet-like shape and have elasticity; the first locking ring is composed of a first ring pad and a first through hole located in the middle of the first ring pad, and the second locking ring is composed of a second ring pad and a second through hole located in the middle of the second ring pad, the distance between the edge of the first through hole and the second through hole is 0.5~0.7mm, and a spacer is formed between the first through hole and the second through hole.

[0007] The structures of the first locking ring and the second locking ring are symmetrical about the center line of the spacer pad.

[0008] The first and second through holes are circular or rounded rectangular in shape.

[0009] The width of the center line of the spacer pad is less than the width of the first or second locking ring.

[0010] The first and second locking rings are respectively symmetrically curved.

[0011] The sum of the lateral lengths of the first and second locking rings is 4.3~4.5 mm.

[0012] It also includes a connecting piece, on each side of which are provided a plurality of connecting short ears, and each connecting short ear is connected to one of the first locking rings; the connecting piece, connecting short ears, first locking ring and second locking ring are of the same thickness and their top surfaces are located in the same plane.

[0013] One end of the connecting piece is provided with a hanging ring.

[0014] The center distance between the first through hole and the second through hole is 1.7~1.9mm.

[0015] The beneficial effects of this utility model are: (1) Bidirectional locking: The first and second locking rings are connected to form a double-ring structure, which locks the wings of the bracket from different directions to form bidirectional locking, greatly enhancing the overall stability and effectively preventing the ligation ring from rotating and slipping off the bracket. (2) Durable and stable force: The double-ring structure of the first and second locking rings can share and offset the deformation stress brought by the archwire and chewing force, reduce the stress relaxation of the single material, make the ligation force last longer, and ensure the stability of the orthodontic force. (3) All-round wrapping: The double-ring structure can wrap the four wings of the bracket more fully, eliminating the dead angle of fixation in the existing single-ring ligation, making the archwire and bracket fit more tightly, which is conducive to precise control of tooth movement. (4) Convenient operation: Doctors can use ligation forceps to put the two rings on the bracket one by one or simultaneously, just like using traditional ligation rings. The operation process does not need to be changed, the learning cost is low, and it is easy to promote. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the top surface of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the first and second locking rings of this utility model connected to both sides of the connecting piece.

[0019] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0020] Figure 5 This is a structural schematic diagram of Embodiment 1.

[0021] Among them: 1. First locking ring; 2. Second locking ring; 3. First ring pad; 4. First through hole; 5. Second ring pad; 6. Second through hole; 7. Spacer pad; 8. Center line; 9. Recess; 10. Connecting piece; 11. Connecting short ear; 12. Suspension ring; 13. Wing; 14. Bow wire. Detailed Implementation

[0022] according to Figures 1-5 This utility model relates to a double-ring locking ligature, comprising a first locking ring 1 and a second locking ring 2 connected to each other in a sheet-like shape and possessing elasticity. The first locking ring 1 consists of a first ring pad 3 and a first through hole 4 located in the middle of the first ring pad 3. The second locking ring 2 consists of a second ring pad 5 and a second through hole 6 located in the middle of the second ring pad 5. The edge distance between the first through hole 4 and the second through hole 6 is 0.5~0.7mm, preferably 0.6mm, and a spacer 7 is formed between the first through hole 4 and the second through hole 6. The center distance between the first through hole 4 and the second through hole 6 is 1.7~1.9mm, preferably 1.8mm.

[0023] The structural shapes of the first locking ring 1 and the second locking ring 2 are symmetrical about the center line 8 of the spacer pad 7.

[0024] The first through hole 4 and the second through hole 6 are circular or rounded rectangles.

[0025] The width of the centerline 8 of the spacer 7 is less than the width of the first locking ring 1 or the second locking ring 2, meaning that recesses 9 are formed on both sides of the connection between the first locking ring 1 and the second locking ring 2, relative to the sides of the first locking ring 1 and the second locking ring 2. Specifically, the first locking ring 1 and the second locking ring 2 are respectively symmetrically curved. The total lateral length of the first locking ring and the second locking ring is 4.3~4.5mm, preferably 4.4mm.

[0026] Preferably, the assembly also includes a connecting piece 10, on both sides of which are provided a plurality of connecting short ears 11, and each connecting short ear 11 is connected to one of the first locking rings 1; the connecting piece 10, the connecting short ears 11, the first locking ring 1 and the second locking ring 2 have the same thickness, and their top surfaces are located in the same plane. One end of the connecting piece 11 is provided with a hanging ring buckle 12. Example 1:

[0027] according to Figure 5 , combined Figure 3 In this embodiment, the first through hole 4 and the second through hole 6 of the first locking ring 1 and the second locking ring 2 are rounded rectangles. The width of the spacer 7 is the same as the width of the first ring pad 3 and the second ring pad 5. The rest are the same as described above.

[0028] In use, the connecting short lug 11 on the connecting piece 10 of this utility model is cut off, the first locking ring 1 and the second locking ring 2 are removed, and the first through hole 4 and the second through hole 6 of the first locking ring 1 and the second locking ring 2 are sequentially or simultaneously looped onto the wing 13 of the bracket using ligation pliers. The bracket is fixed by the first ring pad 3, the spacer pad 7 and the second ring pad 5, which fully wraps the four wings 13 of the bracket. In particular, the spacer pad 7 fixes and wraps the space between the two wings in the lateral direction, eliminating the dead angle of fixation that exists in the existing single-loop ligation, making the archwire 14 fit more tightly with the bracket, which is conducive to precise control of tooth movement.

Claims

1. A double-ring locking ligature, characterized in that: It includes a first locking ring and a second locking ring that are connected to each other in a sheet-like shape and are elastic; the first locking ring is composed of a first ring pad and a first through hole located in the middle of the first ring pad, and the second locking ring is composed of a second ring pad and a second through hole located in the middle of the second ring pad. The distance between the holes of the first through hole and the second through hole is 0.5~0.7mm, and a spacer is formed between the first through hole and the second through hole.

2. The double-ring locking ligature ring according to claim 1, characterized in that: The structures of the first locking ring and the second locking ring are symmetrical about the center line of the spacer pad.

3. A dual loop locking tubular ligature according to claim 1 wherein: The first and second through holes are circular or rounded rectangular in shape.

4. The dual-loop locking tubular ligature loop of claim 1 wherein: The width of the center line of the spacer pad is less than the width of the first or second locking ring.

5. A double-ring locking ligature according to claim 1 or 4, characterized in that: The first and second locking rings are respectively symmetrically curved.

6. A dual loop locking tubular ligature according to claim 1 or 4, wherein: The sum of the lateral lengths of the first and second locking rings is 4.3~4.5 mm.

7. A dual loop locking tubular ligature according to claim 1 wherein: It also includes a connecting piece, on each side of which are provided a plurality of connecting short ears, and each connecting short ear is connected to one of the first locking rings; the connecting piece, connecting short ears, first locking ring and second locking ring are of the same thickness and their top surfaces are located in the same plane.

8. A dual loop locking tubular ligature according to claim 7, wherein: One end of the connecting piece is provided with a hanging ring.

9. A double-ring locking ligature according to claim 1, characterized in that: The center distance between the first through hole and the second through hole is 1.7~1.9mm.

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