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    • 1. 发明授权
    • Ultrasonograph
    • 超声波检查
    • US08951196B2
    • 2015-02-10
    • US13379694
    • 2010-07-21
    • Yoshihiko Itoh
    • Yoshihiko Itoh
    • A61B8/00A61B8/08
    • A61B8/488A61B8/467A61B8/5207A61B8/54A61B8/56
    • To provide a small-size ultrasonic diagnostic apparatus manufactured at a low cost, which is capable of displaying an optimum image in both the B mode and the color-Doppler mode, without providing a plurality of drive amplifiers of different transmission voltages to each transmission channel.The ultrasonic diagnostic apparatus has multiple display modes. The ultrasonic diagnostic apparatus includes: a probe for transmitting an ultrasonic beam and receiving a reflection wave of the ultrasonic beam reflected from a tissue of a biological body; a low-pass filter for filtering the reflection wave; and an image processing section for performing on the filtered reflection wave an image process corresponding to a selected display mode. The probe transmits an ultrasonic beam which has an amplitude determined according to the selected display mode. The low-pass filter has such a filter characteristic that at least the cutoff frequency varies according to the selected display mode.
    • 为了提供以低成本制造的能够在B模式和彩色多普勒模式下显示最佳图像的小型超声波诊断装置,而不向每个传输通道提供具有不同传输电压的多个驱动放大器 。 超声波诊断装置具有多种显示模式。 超声波诊断装置包括:用于发送超声波束并接收从生物体的组织反射的超声波的反射波的探针; 用于滤波反射波的低通滤波器; 以及图像处理部分,用于对经过滤波的反射波执行与所选择的显示模式相对应的图像处理。 探测器发射具有根据所选择的显示模式确定的振幅的超声波束。 低通滤波器具有至少截止频率根据选择的显示模式而变化的滤波器特性。
    • 3. 发明申请
    • ULTRASONOGRAPH
    • US20110015525A1
    • 2011-01-20
    • US12921304
    • 2009-03-03
    • Hiroshi FukukitaYoshihiko Itoh
    • Hiroshi FukukitaYoshihiko Itoh
    • A61B8/14
    • G01S15/8927G01S15/8925
    • Provided is an ultrasonograph that scans a subject in a region of two or more dimensions. The ultrasonograph includes an array transducer (1) in which a plurality of transducers (2) are arrayed, wherein the array transducer (1) is divided into a plurality of sub-arrays (3, 4) composed of a plurality of adjacent ones of the transducers (2). Outputs of the transducers (2) constituting the sub-arrays (3, 4) are input to switch arrays (5, 6) corresponding to the sub-arrays (3, 4), respectively, and outputs of the switch arrays (5, 6) are input via tap input sample hold amplifiers of delay addition lines (7, 8) to sample-hold stages of the delay addition lines (7, 8). The delay addition lines (7, 8) have a configuration in which the plurality of sample-hold stages are connected in series. Outputs of the delay addition lines (7, 8) are the sum of outputs from the transducers (2) constituting the same sub-arrays (3, 4).
    • 提供了在两个或更多个维度的区域中扫描被检体的超声波检查仪。 超声波诊断仪包括阵列换能器(1),其中排列有多个换能器(2),其中阵列换能器(1)被分成多个子阵列(3,4),多个子阵列 换能器(2)。 构成子阵列(3,4)的换能器(2)的输出分别输入到与子阵列(3,4)对应的开关阵列(5,6),并且开关阵列(5, 6)通过延迟加法线(7,8)的抽头输入采样保持放大器输入到延迟加法线(7,8)的采样保持级。 延迟加法线(7,8)具有多个采样保持级串联连接的结构。 延迟加法线(7,8)的输出是构成相同子阵列(3,4)的换能器(2)的输出的总和。