Show simple item record

contributor authorJiang, Shan
contributor authorWang, Xingji
date accessioned2017-05-09T01:26:22Z
date available2017-05-09T01:26:22Z
date issued2016
identifier issn1555-1415
identifier othercnd_011_01_011004.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/160468
description abstractA mechanicsbased model of flexible needle insertion into soft tissue is presented in this paper. Different from the existing kinematic model, a new model has been established based on the quasistatic principle, which also incorporates the dynamics of needle motions. In order to increase the accuracy of the model, nonlinear characteristics of the flexible needle and the soft tissue are both taken into account. The nonlinear Winkler foundation model and the modified Euler–Bernoulli theory are applied in this study, providing a theoretical framework to study insertion and deformation of needles. Galerkin method and iteration cycle analysis are applied in solving a series of deformation control equations to obtain the needle deflection. The parameters used in the mechanicsbased model are obtained from the needle force and needle insertion experiment. Sensitivity studies show that the model can respond reasonably to changes in response to variations in different parameters. A 50 mm needle insertion simulation and a 50 mm corresponding needle insertion experiment are conducted to prove the validity of the model. At last, a study on different needle tip bevel demonstrates that the mechanicsbased model can precisely predict the needle deflection when more than one parameter is changed. The solution can also be used in optimizing trajectory of the needle tip, enabling the needle to reach the target without touching important physiological structures such as blood vessels with the help of dynamic trajectory planning.
publisherThe American Society of Mechanical Engineers (ASME)
titleMechanics Based Interactive Modeling for Medical Flexible Needle Insertion in Consideration of Nonlinear Factors
typeJournal Paper
journal volume11
journal issue1
journal titleJournal of Computational and Nonlinear Dynamics
identifier doi10.1115/1.4030747
journal fristpage11004
journal lastpage11004
identifier eissn1555-1423
treeJournal of Computational and Nonlinear Dynamics:;2016:;volume( 011 ):;issue: 001
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record