Experimental Study to Produce Multiple Focal Points of Acoustic Field for Active Path Selection of Microbubbles through Multi-bifurcation
Experimental Study to Produce Multiple Focal Points of Acoustic Field for Active Path Selection of Microbubbles through Multi-bifurcation
复制标题
多分叉产生多焦点声场用于微气泡主动路径选择的实验研究
DOI：
10.7567/jjap.52.07hf13
复制
发表时间：
2013
影响因子：
1.5
通讯作者：
T. Chiba
中科院分区：
文献类型：
--
作者：
R. Koda;J. Koido;Takumi Ito;T. Mochizuki;K. Masuda;S. Ikeda;F. Arai;Y. Miyamoto;T. Chiba
我们之前报道过，我们试图通过主要的比耶克内力来推动流中的微气泡，这是一种声波沿着其传播方向推动障碍物的物理现象。然而，当超声波从身体表面发出时，控制反流中的气泡是必要的。使用多个换能器来产生相同数量的焦点是不切实际的，因为单元件换能器不能产生两个以上的焦点。在这项研究中，我们根据毛细管模型和二维（2D）阵列传感器引入了一个复杂的人造血管，以产生多个焦点来主动控制逆流中的微气泡。从结果来看，与无发射情况相比，多焦点超声引导的微泡路径增加了约15%。
We previously reported our attempt to propel microbubbles in a 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 the surface of the body, controlling bubbles in an against-flow was necessary. It is unpractical to use multiple transducers to produce the same number of focal points because single-element transducers cannot produce more than two focal points. In this study, we introduced a complex artificial blood vessel according to a capillary model and a two-dimensional (2D) array transducer to produce multiple focal points for the active control of microbubbles in an against-flow. From the results, about 15% more microbubbles were led to the desired path with multiple focal points of ultrasound relative to the no-emission case.
影响因子：
3.4
作者：
Kudo, Nobuki;Okada, Kengo;Yamamoto, Katsuyuki
通讯作者：
Yamamoto, Katsuyuki
产生局部声辐射力来约束微胶囊的流动方向
影响因子：
1.5
作者：
Kohji Masuda;ほか
通讯作者：
ほか