Propulsive force of a magnetic, MRI - Based swimmer

Avi Friedman, Alex Liberzon, Gabor Kosa*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Capsule endoscopy is becoming an important tool for diagnosis in the digestive system. In certain parts of the gastrointestinal tract, such as the stomach, the capsule should be self-propelled. This study examines the swimming mechanism for a miniature gastric pill endoscope. Our method is based on a constant external magnetic field, such as the B0 field of an MRI (Magnetic Resonance Imaging), that drives a pair of coils in order to create an undulating swimming motion. We present a dynamic model of the two coil swimmer and compare it to the results obtained using PIV (Particle Image Velocimetry). We demonstrate that our swimmer is able to create an average propulsive force of 0.03 mN and 0.07 mN for the flow regimes tested, which is in a reasonable agreement with the results of the proposed dynamic model.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Robotics and Automation, ICRA 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4736-4741
Number of pages6
EditionJune
ISBN (Electronic)9781479969234
DOIs
StatePublished - 29 Jun 2015
Event2015 IEEE International Conference on Robotics and Automation, ICRA 2015 - Seattle, United States
Duration: 26 May 201530 May 2015

Publication series

NameProceedings - IEEE International Conference on Robotics and Automation
NumberJune
Volume2015-June
ISSN (Print)1050-4729

Conference

Conference2015 IEEE International Conference on Robotics and Automation, ICRA 2015
Country/TerritoryUnited States
CitySeattle
Period26/05/1530/05/15

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