Open Access
ARTICLE
Simulation of Coupling Process of Flexible Needle Insertion into Soft Tissue Based on ABAQUS
Linze Wang1, Dedong Gao1, *, Jiajie Fu1, Yuzhou Luo2, Shijian Zhao1
1 School of Mechanical Engineering, Qinghai University, Xining, 810016, China.
2 Yamaguchi University, Graduate School of Sciences and Technology for Innovation, Yamaguchi, 7558611, Japan.
* Corresponding Author: Dedong Gao. Email: .
Computers, Materials & Continua 2020, 64(2), 1153-1169. https://doi.org/10.32604/cmc.2020.010073
Received 10 February 2020; Accepted 17 April 2020; Issue published 10 June 2020
Abstract
In order to get to the desired target inside the body, it is essential to investigate
the needle-tissue coupling process and calculate the tissue deformation. A cantilever
beam model is presented to predicting the deflection and bending angle of flexible needle
by analyzing the distribution of the force on needle shaft during the procedure of needle
insertion into soft tissue. Furthermore, a finite element (FE) coupling model is proposed
to simulate the needle-tissue interactive process. The plane and spatial models are created
to relate the needle and tissue nodes. Combined with the cantilever beam model and the
finite element needle-tissue coupling model, the simulation of needle-tissue interaction
was carried out by the ABAQUS software. The comparing experiments are designed to
understand the needle-tissue interactions, by which the same points in the experiments
and simulation are compared and analyzed. The results show that the displacements in x
and z directions in the simulation can accord with the experiments, and the deformation
inside the tissue mainly occurs in the axial direction. The study is beneficial to the robotassisted and virtual needle insertion procedure, and to help the physicians to predict the
inside tissue deformation during the treatments.
Keywords
Cite This Article
L. Wang, D. Gao, J. Fu, Y. Luo and S. Zhao, "Simulation of coupling process of flexible needle insertion into soft tissue based on abaqus,"
Computers, Materials & Continua, vol. 64, no.2, pp. 1153–1169, 2020.
Citations