Mechanic property evaluation of medical Kirschner wire’s large deflection bending

doi:10.3969/j.issn.2095-4344.1038

Abstract

Abstract:

BACKGROUND: When Kirschner wire is used for clinical traction and correction, the precise quantification and safety assessment of the treatment plan are particularly important.

OBJECTIVE: To analyze the mechanical properties and stability of medical Kirschner wire in large deflection bending state by experimental and theoretical analysis, and to evaluate the rationality of using the elastic force as a traction orthodontic solution.

METHODS: The large deflection bending (type U deformation) experiment of the same batch of Kirschner wires with different diameters and lengths was carried out. Combining with the experimental data, the mechanical process was analyzed, and the formula for the elastic force of large deflection bending under different parameters was fitted.

RESULTS AND CONCLUSION: (1) Elastic force of type U Kirschner wire was a function of the size factor (D⁴/L²) of Kirschner wire and time (t), which was stable over time. (2) To conclude, the elastic force produced by Kirschner wire’s large deflection is stable during treatment, and it is a reasonable plan for the traction of orthodontic treatment. This study provides theoretical support for the precise quantification of type U Kirschner wire in clinical application and provides reference for similar applications of type U Kirschner wire.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Mechanics, Orthodontics, Tissue Engineering

CLC Number:

R318.01

Wang Hailong, Lü Ying, An Meiwen, Hou Chunsheng. Mechanic property evaluation of medical Kirschner wire’s large deflection bending[J]. Chinese Journal of Tissue Engineering Research, 2019, 23(4): 567-572.

Figures/Tables 6

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