TY - JOUR
T1 - Active control of microbubbles stream in multi-bifurcated flow by using 2D phased array ultrasound transducer
AU - Koda, Ren
AU - Koido, Jun
AU - Hosaka, Naoto
AU - Ito, Takumi
AU - Onogi, Shinya
AU - Mochizuki, Takashi
AU - Masuda, Kohji
AU - Ikeda, Seiichi
AU - Arai, Fumihito
PY - 2013
Y1 - 2013
N2 - We have previously reported our attempt to propel microbbles in flow by a primary Bjerknes force, which is a physical phenomenon where an acoustic wave pushes an obstacle along its direction of propagation. However, when ultrasound was emitted from surface of the body, controlling bubbles in against flow was needed. It is unpractical to use multiple transducers to produce the same number of focal points because single element transducer cannot produce more than two focal points. In this study, we introduced a complex artificial blood vessel according to a capillary model and a 2D array transducer to produce multiple focal points for active control of microbubbles in against flow. Furthermore, we investigated bubble control in viscous fluid. As the results, we confirmed clearly path selection of MBs in viscous fluid as well as in water.
AB - We have previously reported our attempt to propel microbbles in flow by a primary Bjerknes force, which is a physical phenomenon where an acoustic wave pushes an obstacle along its direction of propagation. However, when ultrasound was emitted from surface of the body, controlling bubbles in against flow was needed. It is unpractical to use multiple transducers to produce the same number of focal points because single element transducer cannot produce more than two focal points. In this study, we introduced a complex artificial blood vessel according to a capillary model and a 2D array transducer to produce multiple focal points for active control of microbubbles in against flow. Furthermore, we investigated bubble control in viscous fluid. As the results, we confirmed clearly path selection of MBs in viscous fluid as well as in water.
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U2 - 10.1109/EMBC.2013.6610988
DO - 10.1109/EMBC.2013.6610988
M3 - Article
C2 - 24111175
SN - 1557-170X
VL - 2013
SP - 6277
EP - 6280
JO - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
JF - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
ER -