Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/EMBC.2014.6943729
