Open AccessA Novel Parametric Design Method of Three-section Bioabsorbable Interface Screw
Author(s) -
Lihua Chen,
Xianyuan Meng,
Wenxing Dong,
Lutong Shan
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1986/1/012062
Subject(s) - parametric statistics , interface (matter) , parametric design , perpendicular , computer science , thread (computing) , structural engineering , materials science , mechanical engineering , engineering , composite material , mathematics , geometry , contact angle , statistics , sessile drop technique
Bioabsorbable interface screw is a kind of fixation instrument which uses interference fit to produce tightening force. The mechanical properties of interface screws, which are mainly used for cruciate ligament reconstruction surgery, have a strong correlation with thread parameters. Due to the different contact stresses caused by the different contact environments of each section of the interface screw after knee ligament reconstruction, this paper proposed a parametric design method for the three-section interface screw. In this study, the cross-section perpendicular to the axis was used as the reference plane for modeling, and a mathematical model of the structural parameters of each cross-section was established. Finally, through the python module of the open design platform GRASSHOPPER, the mathematical model established was applied to the parametric design of the interface screw.