一种口腔正畸弓丝辅助结扎工具
By designing an orthodontic archwire ligation tool, which utilizes an adjustable threaded rod and clamping head structure, the problem of archwires being difficult to press into bracket grooves has been solved, achieving stable fixation and ligation of the archwire and adapting to the needs of different brackets and operating sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA AEROSPACE SCI & IND GRP 731 HOSPITAL
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-17
AI Technical Summary
Clinically, there is a lack of effective tools to help press the archwire into the bracket groove, especially for thick archwires that are difficult to fix completely. Existing methods rely on finger pressing and are prone to failure due to elasticity.
An orthodontic archwire ligation tool was designed, including a handle, a connecting rod, a clamping head, and an adjustable threaded rod structure. By adjusting the depth of the threaded rod and the shape of the clamping head, the archwire is pressed into the bracket groove. The handle angle is adjusted using a turntable and a positioning screw, and a rubber band is used to achieve stable ligation.
It achieves stable insertion and fixation of the archwire, overcomes the problem of difficulty in complete insertion caused by the elasticity of the archwire, ensures the stability and safety of ligation, and adapts to the needs of different brackets and operating positions.
Smart Images
Figure CN224505615U_ABST
Abstract
Claims
1. A tool for assisting in the ligation of orthodontic archwires, characterized in that: Includes a handle (7), a connecting rod (17) is installed on the top of the handle (7), and a crossbar (14) is fixedly installed at both ends of the connecting rod (17). A horizontal groove (6) is opened at the end of the crossbar (14) away from the connecting rod (17). A threaded rod (13) is movably inserted in the horizontal groove (6). A nut (16) is fitted on the threaded rod (13). The nut (16) is set on the outside of the crossbar (14). The threaded rod (13) is fixed by tightening the nut (16). An L-shaped rod (5) is detachably installed at the end of the threaded rod (13) away from the connecting rod (17). A telescopic rod mechanism is fixedly installed at the top of the L-shaped rod (5). The length of the telescopic rod mechanism is adjustable and fixed. A clamping head (1) is fixedly installed at the top of the telescopic rod mechanism. The clamping head (1) is clover-shaped or convex.
2. The orthodontic archwire tie -down tool of claim 1, wherein: A turntable (21) is fixedly installed on the top of the handle (7), and a rotating groove (18) is opened at the bottom of the connecting rod (17). The turntable (21) is rotatably installed in the rotating groove (18), and the installation angle of the turntable (21) can be fixed.
3. The orthodontic archwire tie -down tool of claim 2, wherein: The turntable (21) has a plurality of threaded holes (19) evenly arranged in a ring on its front side. The connecting rod (17) has a positioning screw (10) on its front side. The positioning screw (10) is threadedly engaged with the connecting rod (17). The turntable (21) is fixed by screwing the positioning screw (10) into the threaded hole (19).
4. The orthodontic archwire tie -down tool of claim 3, wherein: A rotating rod (20) is fixedly installed through the center of the turntable (21), and the two ends of the rotating rod (20) are rotatably installed on the inner wall of the rotating groove (18).
5. The orthodontic archwire tie -down tool of claim 1, wherein: A rubber ring (15) is fitted on the threaded rod (13). The rubber ring (15) is located between the nut (16) and the crossbar (14). The nut (16) and the crossbar (14) are both in a limiting fit with the rubber ring (15).
6. The orthodontic archwire tie -down tool of claim 1, wherein: The outer surface of the handheld end of the handle (7) is provided with anti-slip threads (8), the end of the threaded rod (13) is fixedly provided with a screw (12), the end of the L-shaped rod (5) is provided with a rod groove (11), and the screw (12) is threadedly inserted into the rod groove (11).
7. The orthodontic archwire tie -down tool of claim 1, wherein: The telescopic rod mechanism includes a fixed rod (3), the top of which has a groove (4) longitudinally formed, and a movable rod (2) is movably inserted into the groove (4). The clamping head (1) is installed at the top of the movable rod (2). A tightening screw (9) is provided on the outer side of the upper end of the fixed rod (3). The tightening screw (9) is threadedly engaged with the fixed rod (3). The movable rod (2) is fixed by tightening the tightening screw (9).
8. The orthodontic archwire tie -down tool of claim 7, wherein: The bottom of the clamping head (1) is fixedly provided with a plug rod (23), the cross-section of the plug rod (23) is square, and the top of the movable rod (2) is longitudinally provided with a square groove (22), and the plug rod (23) is inserted into the square groove (22).