A new spiral expander for orthodontics
By designing a new spiral arch expander including a stent body, screw, guide rod, short stent rod and long stent rod, bone expansion is achieved, and the problem of bone expansion in the existing technology is solved, effectively expanding the arch, so that the teeth can be arranged naturally.
CN222708425UActive Publication Date: 2025-04-04CHANGSHA TIANTIAN DENTAL EQUIP CO LTD
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Patent Information
- Application Number
- CN202421376348.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-17
AI Technical Summary
Technical Problem
The existing spiral arch expansion device can only perform dental arch expansion, but cannot perform bone arch expansion, which cannot effectively solve the problem of too narrow arch caused by insufficient maxillary development.
Method used
A new spiral expander including a bracket body, a screw, a guide rod, a short bracket rod and a long bracket rod were designed. The fixation and expansion of the maxillary bone was achieved through the combination of two long bracket rods and the fixation of external bolts.
Benefits of technology
The bone expansion is achieved, which can effectively expand the arch and enable the teeth to be arranged naturally, solving the problem of too narrow arch caused by insufficient maxillary development.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model belongs to the technical field of orthodontics. The utility model discloses a novel spiral expander for orthodontics; it includes a bracket body, a screw rod, a guide rod, a short bracket rod and a long bracket rod, and is characterized in that: there are two bracket bodies, the screw rod and the guide rod are located between the bracket bodies, through holes are provided at both ends of the bracket body, a short bracket rod is welded in the through hole at one end, and a long bracket rod is welded in the through hole at the other end, a fixing hole is provided at the end of the short bracket rod away from the bracket body, the threads at the top and bottom of the screw rod turn in opposite directions, the middle ends of the two bracket bodies are respectively provided with screw holes connected with threads at both ends, the middle end of the screw rod is provided with a cross-shaped jack, there are two guide rods and they are located at both ends of the screw rod, and both ends of the two bracket bodies are also provided with sliding holes connected with the guide rods in a sliding manner. The utility model adopts two types of bracket rods, long and short, and a fixing hole is left on the short bracket rod, and the expander is fixed on the maxillary bone through the fixing hole, so as to achieve bony expansion.
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