Simulation on Mechanical Properties of Triple -helix Artificial Chordae Structure
CHANG Linan
SONG Chengli
SHEN Tong
MEI Ju
DAI Huangdong
Abstract：Bionic equivalent triple -helix artificial chordae structure was estabilished based on the structure of real heart mitral valve chordae.ABAQUS was applied to simulate the tensile tests.Simulation results were analyzed and compared with real chordae (marginal、basal and strut chordae)tensile properties to vertify feasibility and correctness of model.Results showed that the maximum stress of spiral chordae was consistent with the actual average maximum stress.Besides,force displacement curves of all kinds of chor-dae were basically in accordance with test curves.This proposed triple -helix equivalent model is closer to the real chordae’s proper-ties and can reduce stress concentration on mitral leaflets,which indicating a new direction to the structure improvements of artificial chordae materials and providing reference for finite element researches on soft tissue tensile properties module.
Keywords：Triple -helix modelArtificial chordaeABAQUS finite element analysisThe tensile test of heart chordae tendineae
Publication Date：2015-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：5( 89-93 )