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    • 6. 发明授权
    • Doppler transceiver and probe for use in minimally invasive procedures
    • 用于微创手术的多普勒收发器和探头
    • US08206304B1
    • 2012-06-26
    • US11014037
    • 2004-12-16
    • Gary DouglasDavid ReganNilendu SrivastavaRachana Suchdev
    • Gary DouglasDavid ReganNilendu SrivastavaRachana Suchdev
    • A61B8/14
    • A61B8/488A61B8/06A61B8/12
    • A system is disclosed for the detection of blood flow. The system provides, a portable transceiver unit having a signal generator, a signal comparator, and an audio output whereby a user receives an audio signal indicating differences in Doppler signal, and a Doppler probe coupled to the portable transceiver. The Doppler probe including a piezoelectric crystal disposed at a first end of the Doppler probe; at least one wire transmitting signals between the transceiver unit to the piezoelectric crystal; a rigid or flexible sheath disposed around at least part of the at least one wire and the piezoelectric crystal; and a transceiver unit coupler disposed at a second end of the Doppler probe. The system may also have a quantitative blood flow meter or signal strength meter.
    • 公开了一种用于检测血流的系统。 该系统提供具有信号发生器,信号比较器和音频输出的便携式收发器单元,由此用户接收指示多普勒信号的差异的音频信号,以及耦合到便携式收发器的多普勒探头。 多普勒探头包括设置在多普勒探头第一端的压电晶体; 至少一根线将收发器单元之间的信号传输到压电晶体; 围绕所述至少一个线和所述压电晶体的至少一部分设置的刚性或柔性护套; 以及设置在所述多普勒探测器的第二端处的收发器单元耦合器。 该系统还可以具有定量血液流量计或信号强度计。