Shell-shaped dental instrument

By optimizing the structure of the traction part of the shell-shaped dental instrument, making its length greater in the first direction than in the second direction, the problem of deformation of invisible orthodontic appliances under high traction force was solved, and the stability of traction force and comfort were improved.

CN223787717UActive Publication Date: 2026-01-13ZHEJIANG YINCHILI MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202423285414.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-13
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The traction structure of existing invisible orthodontic appliances is prone to deformation when providing high traction force, resulting in an inability to provide stable traction force, which affects the treatment effect and comfort.

Method used

Design a shell-shaped dental instrument with a first-direction length greater than a second-direction length of the traction part, and the receiving groove oriented towards the first direction. Improve the structure of the traction part to enhance its bending resistance, and optimize the design through finite element analysis to ensure that the traction part stably provides traction force under different orthodontic needs.

Benefits of technology

It improves the deformation resistance of the traction unit, enabling it to provide stable traction force during treatment, thereby enhancing the treatment effect and improving patient comfort.

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Abstract

The embodiment of the utility model provides a shell-shaped dental instrument which comprises a shell-shaped body with a plurality of tooth containing cavities, a traction part for hanging a traction piece is arranged on part of the surface of the shell-shaped body in an outward protruding and extending mode, and the traction part and the shell-shaped body are integrally formed and are of a hollow structure. A containing groove for containing a traction piece is formed in the side surface of the traction part, the containing groove is used for being detachably connected with the traction piece, the maximum length of any first cross section of the traction part in the first direction is larger than the maximum length of any first cross section in the second direction, the first direction is the direction where the long axis of the traction part is located, and the second direction is the direction where the long axis of the traction part is located. The first direction is perpendicular to the second direction, the first direction and the second direction are located on the first cross section, and the containing groove faces the first direction or the direction opposite to the first direction.
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