ICRA 2012 Paper Abstract

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Paper WeA03.2

Vartholomeos, Panagiotis (Children's Hospital Boston , Harvard Medical School), Akhavan-Sharif, Reza (Department of Radiology, Beth Israel Deaconess MedicalCenter, Bo), Dupont, Pierre (Children's Hospital Boston, Harvard Medical School)

Motion Planning for Multiple Millimeter-Scale Magnetic Capsules in a Fluid Environment

Scheduled for presentation during the Regular Session "Medical Robotics I" (WeA03), Wednesday, May 16, 2012, 08:45−09:00, Meeting Room 3 (Mak'to)

2012 IEEE International Conference on Robotics and Automation, May 14-18, 2012, RiverCentre, Saint Paul, Minnesota, USA

This information is tentative and subject to change. Compiled on February 24, 2018

Keywords Medical Robots and Systems

Abstract

There are many examples of minimally invasive surgery in which tethered robots are incapable of accurately reaching target locations deep inside the body either because they are too large and so cause tissue damage or because the tortuosity of the path leads to loss of tip control. In these situations, small untethered magnetically-powered robots may hold the potential to act as delivery vehicles for therapeutic agents. While MRI scanners provide a means to power, control and image such robots as they move throughout the body, a substantial challenge arises if the clinical application requires more than one such robot. The resulting system is underactuated and thus its controllability is in question. This paper presents a simple motion planning algorithm for two magnetic capsules and demonstrates through simulation and experiment that nonlinear fluid damping can be exploited to independently control the positions of the capsules.

 

 

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