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    • 16. 发明授权
    • Ultrasonic Doppler diagnosis apparatus
    • 超声多普勒诊断仪
    • US5377684A
    • 1995-01-03
    • US953867
    • 1992-09-30
    • Kiyoshi Hara
    • Kiyoshi Hara
    • A61B8/06G01P5/00G01S7/52G01S15/89
    • G01S7/52071G01S15/8979
    • An ultrasonic Doppler diagnosis apparatus according to the present invention comprises a scanner for scanning a two-dimensional region of a subject with an ultrasonic beam, a detector for detecting a Doppler deviation frequency of a predetermined moving object in response to a signal output from the scanner, a calculator for calculating a rate of variation between at least two Doppler deviation frequencies detected by the detector at different times, a supplier for supplying color information to the rate of variation in accordance with the levels of the Doppler deviation frequencies, and a display for two-dimensionally displaying the rate of variation to which the color information is supplied by the supplier.
    • 根据本发明的超声波多普勒诊断装置包括:扫描器,用于利用超声波束扫描对象的二维区域;响应于从扫描仪输出的信号检测预定移动物体的多普勒偏差频率的检测器 ,用于计算在不同时间由检测器检测到的至少两个多普勒偏差频率之间的变化率的计算器,用于根据多普勒偏差频率的电平向彩色信息提供变化率的供应器,以及用于 二维地显示供应商提供颜色信息的变化率。
    • 17. 发明授权
    • Mechanical type ultrasonic scanner
    • 机械式超声波扫描仪
    • US4807634A
    • 1989-02-28
    • US10341
    • 1987-02-03
    • Susumu EnjojiYushichi KikuchiKiyoshi Hara
    • Susumu EnjojiYushichi KikuchiKiyoshi Hara
    • G10K11/02G10K11/35A61B10/00
    • G10K11/355A61B8/4461G10K11/02
    • A mechanical type ultrasonic scanner has a housing which includes an insertion hole and a window member. The window member possesses ultrasonic transmission properties. The housing is filled with an acoustic liquid medium. A vibrator and a scanning mechanism are also accommodated in the housing. The vibrator generates ultrasonic waves. The scanning mechanism mechanically moves the vibrator, to scan the ultrasonic waves generated thereby. A rotating shaft is inserted in the housing, through the insertion hole. The rotating shaft transmits the driving force of a motor to a scanning mechanism. A seal member is inserted between the housing and the rotating shaft in the insertion hole. A partition wall is formed in the housing, to partition it into a first liquid medium chamber and an adjacent second liquid medium chamber. The first liquid medium chamber accommodates the vibrator and the scanning mechanism. The partition wall guides bubbles, undesirably inserted into the acoustic liquid medium, from the first liquid medium chamber to the second liquid medium chamber, and prevents the bubbles from returning to the first liquid medium chamber.
    • 机械式超声波扫描器具有包括插入孔和窗构件的壳体。 窗构件具有超声波传播性能。 外壳充满声学液体介质。 振动器和扫描机构也容纳在壳体中。 振动器产生超声波。 扫描机构机械地移动振动器,以扫描由此产生的超声波。 旋转轴通过插入孔插入壳体中。 旋转轴将电动机的驱动力传递到扫描机构。 密封构件插入壳体与插入孔中的旋转轴之间。 在壳体中形成分隔壁,以将其分隔成第一液体介质室和相邻的第二液体介质室。 第一液体介质室容纳振动器和扫描机构。 分隔壁将不期望地插入到声液介质中的气泡从第一液体介质室引导到第二液体介质室,并且防止气泡返回到第一液体介质室。