Paper Title:
Simulation for Needle Deflection and Soft Tissue Deformation in Needle Insertion
  Abstract

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.

  Info
Periodical
Advanced Materials Research (Volumes 139-141)
Edited by
Liangchi Zhang, Chunliang Zhang and Tielin Shi
Pages
889-892
DOI
10.4028/www.scientific.net/AMR.139-141.889
Citation
D. D. Gao, H. J. Zheng, "Simulation for Needle Deflection and Soft Tissue Deformation in Needle Insertion", Advanced Materials Research, Vols. 139-141, pp. 889-892, 2010
Online since
October 2010
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Price
$32.00
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