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    • 7. 发明申请
    • Automatic signal-optimizing transducer assembly for blood flow measurement
    • 用于血流测量的自动信号优化换能器组件
    • US20060241459A1
    • 2006-10-26
    • US11108362
    • 2005-04-18
    • Alan Tai
    • Alan Tai
    • A61B8/00
    • A61B8/4209A61B8/06A61B8/0808A61B8/4236A61B8/4281G01S7/52026G01S7/52031G01S7/5205G01S7/52079G01S15/8979
    • The invention uses a transducer and ultrasound system to form and direct ultrasound beams through the blood stream that will detect the Doppler shift in frequency between the beams and the return echo off the blood. The transducer can be secured onto the surface of the patient's skin with a transducer housing holder. A 1-D transducer, subject to an optimized angle with respect to the blood vessel, will generate and direct ultrasound beams electronically through a blood vessel below the skin and analyze the received echo, searching for the maximum signal amplitude of the Doppler frequency shift from the blood. Furthermore, the device continuously controls the direction of the ultrasound beams to achieve maximum return signal amplitude. Then, the condition and trend of the blood flow is recorded and displayed continuously over the desired diagnostic interval the device is in use.
    • 本发明使用换能器和超声系统来形成和引导超声波束通过血流,该血流将检测波束之间的频率的多普勒频移以及离开血液的返回回波。 传感器可以用传感器外壳座固定在患者皮肤表面上。 相对于血管经受优化的角度的1-D换能器将通过皮肤下方的血管电子产生并引导超声波束,并分析所接收的回波,从多普勒频移的最大信号幅度搜索 血液。 此外,该装置连续地控制超声波束的方向以实现最大的返回信号幅度。 然后,在设备正在使用的期望的诊断间隔内,连续地记录和显示血流的状况和趋势。