Theoretical analysis of magnetically propelled microrobots in the cardiovascular system

Author

Plotner, P. ; Harada, Kanako ; Sugita, Naohiko ; Mitsuishi, Mamoru

Author_Institution

Dept. of Mech. Eng., Univ. of Tokyo, Tokyo, Japan

fYear

2014

fDate

26-30 Aug. 2014

Firstpage

870

Lastpage

873

Abstract

The field of medical microrobotics is rapidly progressing; however, it is particularly challenging to control microrobots inside blood vessels. In this paper, the magnetic propulsion of a microrobot in pulsating flow is investigated. Regarding this task, the advantages of a reduced blood flow velocity are examined. The required magnetic field gradient in relation to the size of the microrobot is theoretically analyzed and compared to that for propulsion during reduced blood flow velocity. Quantitative and qualitative advantages together with the practical challenges are discussed.

Keywords

bioMEMS; blood vessels; cardiovascular system; haemodynamics; medical robotics; microrobots; patient treatment; pulsatile flow; robot dynamics; blood vessels; cardiovascular system; magnetic field gradient; magnetic propulsion; magnetically propelled microrobots; medical microrobotics; microrobot control; microrobot size; pulsating flow; reduced blood flow velocity; Blood flow; Magnetic fields; Magnetic resonance imaging; Navigation; Propulsion; Robots;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2014.6943729

Filename

6943729