Liu Chuang, Bai Jingfeng
Zhongguo Yi Liao Qi Xie Za Zhi. 2016 Jan;40(1):1-4.
The postoperative neurological complications is associated with intraoperative cerebral emboli, which results from extracorporeal circulation and operation. It can effectively reduce the incidence of neurological complications with ultrasonic radiation. In fluids, a particle will change it's motion trail when it is acted by the radiation force generated by the ultrasound. This article mainly discuss how to shielding emboli with ultrasound. The equipment can transmit phased ultrasonic signals, which is designed on a FPGA development board. The board can generate a square wave, which is converted into a sine wave through a power amplifier. In addition, the control software has been developed on Qt development environment. The result indicates it's feasible to shielding emboli with ultrasonic radiation force. This article builds a strong foundation for the future research.
术后神经并发症与术中脑栓塞有关，脑栓塞由体外循环和手术引起。超声辐射可有效降低神经并发症的发生率。在流体中，当粒子受到超声产生的辐射力作用时，其运动轨迹会发生改变。本文主要探讨如何用超声屏蔽栓子。该设备能发射相控超声信号，是基于FPGA开发板设计的。该开发板能产生方波，通过功率放大器转换为正弦波。此外，控制软件是在Qt开发环境下开发的。结果表明用超声辐射力屏蔽栓子是可行的。本文为未来的研究奠定了坚实基础。
