scholarly journals Total Lagrangian explicit dynamics finite element algorithm for computing soft tissue deformation

2006 ◽  
Vol 23 (2) ◽  
pp. 121-134 ◽  
Author(s):  
Karol Miller ◽  
Grand Joldes ◽  
Dane Lance ◽  
Adam Wittek
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Tissue Deformation ◽  
Soft Tissue Deformation ◽  
Explicit Dynamics ◽  
Element Algorithm ◽  
Total Lagrangian Explicit Dynamics

scholarly journals Finite Element Model of Facial Soft Tissue. Deformation Following Surgical Correction.

1992 ◽  
Vol 34 (2) ◽  
pp. 111-122 ◽  
Author(s):  
Mitsuru MOTOYOSHI ◽  
Shigemi YAMAMURA ◽  
Akira NAKAJIMA ◽  
Akihiko YOSHIZUMI ◽  
Yoshinari UMEMURA ◽  
...  
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Finite Element Model ◽  
Element Model ◽  
Surgical Correction ◽  
Tissue Deformation ◽  
Facial Soft Tissue ◽  
Soft Tissue Deformation

Simulation for Needle Deflection and Soft Tissue Deformation in Needle Insertion

2010 ◽  
Vol 139-141 ◽  
pp. 889-892
Author(s):  
De Dong Gao ◽  
Hao Jun Zheng
Keyword(s):  
Finite Element ◽  
Soft Tissue ◽  
Three Dimensional ◽  
Needle Insertion ◽  
Tissue Deformation ◽  
Spring Model ◽  
Ansys Software ◽  
Soft Tissue Deformation ◽  
Needle Deflection ◽  
Element Method

Needle deflection and soft tissue deformation are the most important factors that affect accuracy in needle insertion. Based on the quasi-static thinking and needle forces, an improved virtual spring model and a finite element method are presented to analyze needle deflection and soft tissue deformation when a needle is inserted into soft tissue. According to the spring model, the trajectory of the needle tip is calculated with MATLAB using different parameters. With the superposed element method, the two and three dimensional quasi-static finite element models are created to simulate the dynamic process of soft tissue deformation using ANSYS software. The two methods will be available for steering the flexible needle to hit the target and avoid the obstacles precisely in the robot-assisted needle insertion.

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