Title
Mechanics-based modeling of needle insertion into soft tissue
Abstract
Insertion of bevel-tip steerable needles to reach target positions inside the tissue is an important step in modern minimally invasive surgery (MIS). When the needle is inserted into soft tissue, it bends naturally due to the asymmetric forces. In this paper, mechanics-based modeling of needle insertion is developed, based on which the needle deflection during insertion can be predicted. Utilizing the beam theory and Rayleigh-Ritz method, the shape function of the needle deflection can be formulated mathematically. An online evaluation method for load distribution is further proposed to determine the distributed load when the needle is inserted into non-homogenous tissue. Experiments are finally performed to verify the correctness of the proposed approach.
Year
DOI
Venue
2013
10.1109/AIM.2013.6584065
AIM
Keywords
Field
DocType
beam theory,rayleigh-ritz methods,needle deflection,minimally invasive surgery,bevel-tip steerable needle insertion,needles,load distribution,soft tissue,mis,nonhomogenous tissue,shape function,mechanics-based modeling,biological tissues,distributed load,rayleigh-ritz method,force,rayleigh ritz method,predictive models,shape,robots
Deflection (engineering),Timoshenko beam theory,Computer science,Mechanics,Online evaluation,Soft tissue,Shape function
Conference
Volume
Issue
ISSN
null
null
2159-6247
ISBN
Citations 
PageRank 
978-1-4673-5319-9
0
0.34
References 
Authors
16
4
Name
Order
Citations
PageRank
Jianjun Wang170.85
Xiangpeng Li29916.53
Jinjin Zheng34212.33
Dong Sun496687.31