Modeling of Needle Steering via Duty-Cycled Spinning - Robotics Institute Carnegie Mellon University

Modeling of Needle Steering via Duty-Cycled Spinning

Davneet Minhas, Johnathan A. Engh, Michele Marie Fenske, and Cameron Riviere
Conference Paper, Proceedings of 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC '07), pp. 2756 - 2759, August, 2007

Abstract

As flexible bevel tip needles are inserted into tissue, a deflection force causes the needle to bend with a curvature dependent on relative stiffness and bevel angle. By constantly spinning the needle during insertion, the bevel angle is essentially negated and a straight trajectory can be achieved. Incorporating duty-cycled spinning during needle insertion provides proportional control of the curvature of the needle trajectory through tissue. This paper proposes a kinematic model for needle steering via duty-cycled spinning. Validation using experimental results is also presented.

BibTeX

@conference{Minhas-2007-9800,
author = {Davneet Minhas and Johnathan A. Engh and Michele Marie Fenske and Cameron Riviere},
title = {Modeling of Needle Steering via Duty-Cycled Spinning},
booktitle = {Proceedings of 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC '07)},
year = {2007},
month = {August},
pages = {2756 - 2759},
keywords = {neurosurgery, needle steering, minimally invasive surgery},
}