Citation

BibTex format

@article{Oldfield:2015:10.1007/s10439-015-1329-0,
author = {Oldfield, MJ and Leibinger, A and Seah, TE and Rodriguez, Y Baena F},
doi = {10.1007/s10439-015-1329-0},
journal = {Annals of Biomedical Engineering},
pages = {2794--2803},
title = {Method to Reduce Target Motion Through Needle-Tissue Interactions.},
url = {http://dx.doi.org/10.1007/s10439-015-1329-0},
volume = {43},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - During minimally invasive surgical procedures, it is often important to deliver needles to particular tissue volumes. Needles, when interacting with a substrate, cause deformation and target motion. To reduce reliance on compensatory intra-operative imaging, a needle design and novel delivery mechanism is proposed. Three-dimensional finite element simulations of a multi-segment needle inserted into a pre-existing crack are presented. The motion profiles of the needle segments are varied to identify methods that reduce target motion. Experiments are then performed by inserting a needle into a gelatine tissue phantom and measuring the internal target motion using digital image correlation. Simulations indicate that target motion is reduced when needle segments are stroked cyclically and utilise a small amount of retraction instead of being held stationary. Results are confirmed experimentally by statistically significant target motion reductions of more than 8% during cyclic strokes and 29% when also incorporating retraction, with the same net insertion speed. By using a multi-segment needle and taking advantage of frictional interactions on the needle surface, it is demonstrated that target motion ahead of an advancing needle can be substantially reduced.
AU - Oldfield,MJ
AU - Leibinger,A
AU - Seah,TE
AU - Rodriguez,Y Baena F
DO - 10.1007/s10439-015-1329-0
EP - 2803
PY - 2015///
SN - 1573-9686
SP - 2794
TI - Method to Reduce Target Motion Through Needle-Tissue Interactions.
T2 - Annals of Biomedical Engineering
UR - http://dx.doi.org/10.1007/s10439-015-1329-0
UR - http://hdl.handle.net/10044/1/24474
VL - 43
ER -