Ultrasound transducer and ultrasound endoscope

    公开(公告)号:US09919343B2

    公开(公告)日:2018-03-20

    申请号:US15422527

    申请日:2017-02-02

    Inventor: Takanao Fujimura

    Abstract: An ultrasound transducer includes: an acoustic matching layer bending with a predetermined curvature; a plurality of piezoelectric elements disposed on an inner face on a side of a curvature center of the acoustic matching layer in such a manner that the plurality of piezoelectric elements bend; a plurality of wirings including respective one ends electrically connected to the plurality of piezoelectric elements, respectively; a substrate to which respective other ends of the plurality of wirings are electrically connected; and a holding member provided on the plurality of wirings at a position partway of the plurality of wirings between the plurality of piezoelectric elements and the substrate, the holding member being configured to hold a pitch of the plurality of wirings so as to be a pitch that is equal to or smaller than a predetermined arrangement pitch of the plurality of piezoelectric elements.

    Ultrasonic Probe and Ultrasonic Diagnostic Apparatus
    67.
    发明申请
    Ultrasonic Probe and Ultrasonic Diagnostic Apparatus 审中-公开
    超声波探头和超声波诊断仪

    公开(公告)号:US20150313575A1

    公开(公告)日:2015-11-05

    申请号:US14648463

    申请日:2012-12-07

    Applicant: HITACHI, LTD.

    Abstract: An ultrasonic probe includes a plurality of ultrasonic transducers. The ultrasonic probe is connected to a reception system circuit including at least one first delay adder circuit in which a predetermined number among the plurality of ultrasonic transducers is configured as one subarray and delaying and adding are performed in subarray units with respect to an ultrasonic wave reception signal that is acquired from the ultrasonic transducers included in the subarray, and a second delay adder circuit in which delaying and adding are performed with respect to the ultrasonic wave reception signal that is acquired from the ultrasonic transducers. The plurality of ultrasonic transducers include a first group which transmits the reception signal to the second delay adder circuit passing through the first delay adder circuit and a second group which transmits the reception signal directly to the second delay adder circuit without passing through the first delay adder circuit.

    Abstract translation: 超声波探头包括多个超声换能器。 超声波探头连接到包括至少一个第一延迟加法器电路的接收系统电路,其中多个超声波换能器中的预定数量被配置为一个子阵列,并且相对于超声波接收以子阵列单位执行延迟和相加 从包括在子阵列中的超声换能器获取的信号;以及第二延迟加法电路,其中对于从超声换能器获取的超声波接收信号执行延迟和相加。 多个超声换能器包括将接收信号发送到通过第一延迟加法电路的第二延迟加法器电路的第一组和将接收信号直接发送到第二延迟加法器电路而不经过第一延迟加法器的第二组 电路。

    Ultrasonic Sensor Microarray and Method of Manufacturing Same
    68.
    发明申请
    Ultrasonic Sensor Microarray and Method of Manufacturing Same 有权
    超声波传感器微阵列及其制造方法相同

    公开(公告)号:US20150290678A1

    公开(公告)日:2015-10-15

    申请号:US14437616

    申请日:2013-11-01

    CPC classification number: B06B1/0292 B06B2201/20 B06B2201/40 B06B2201/70

    Abstract: A sensor assembly including one or more capacitive micromachined ultrasonic transducer (CMUT) microarray modules which are provided with a number of individual transducers. The microarray modules are arranged to simulate or orient individual transducers in a hyperbolic paraboloid geometry. The transducers/sensor are arranged in a rectangular or square matrix and are activatable individually, selectively or collectively to emit and received reflected beam signals at a frequency of between about 100 to 170 kHz.

    Abstract translation: 一种传感器组件,包括一个或多个电容式微加工超声波换能器(CMUT)微阵列模块,其设置有多个单独的换能器。 微阵列模块被布置成在双曲抛物面几何中模拟或定向各个换能器。 传感器/传感器被布置成矩形或矩形矩阵,并且可以单独地,选择性地或集体地激活以以大约100到170kHz之间的频率发射和接收反射光束信号。

    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN ULTRASOUND TRANSDUCER
    69.
    发明申请
    DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN ULTRASOUND TRANSDUCER 有权
    用于驱动负载,特别是超声波传感器的驱动装置和驱动方法

    公开(公告)号:US20150174614A1

    公开(公告)日:2015-06-25

    申请号:US14414467

    申请日:2013-07-11

    Abstract: The present invention relates to a driver device (40) for driving a load (52) having a plurality of separate capacitive load elements (52), in particular an ultrasound transducer having a plurality of transducer elements (52), comprising: input terminals (44, 46) for connecting the driver device (40) to power supply (48); a plurality of output terminals (50) each for connecting the driver device (40) to one of load elements (52), a first controllable switch (54) connected to a first of the input terminals (44), and a plurality of driving elements (42) each having a second controllable switch (60) and a resistor (58) connected in series to each other, wherein each of the driving elements (42) is connected in series with the first controllable switch (54) and to a second of the input terminals (46), and wherein each of the output terminals (50) is connected to one of the driving elements (42) for powering the load elements (52).

    Abstract translation: 本发明涉及用于驱动具有多个独立的电容性负载元件(52)的负载(52)的驱动器装置(40),特别地涉及具有多个换能器元件(52)的超声波换能器,包括:输入端子 44,46),用于将驱动器装置(40)连接到电源(48); 多个输出端子(50),用于将驱动器装置(40)连接到负载元件(52)中的一个,连接到第一输入端子(44)的第一可控开关(54)和多个驱动 每个元件(42)具有彼此串联连接的第二可控开关(60)和电阻器(58),其中每个驱动元件(42)与第一可控开关(54)串联连接, 第二输入端子(46),并且其中每个输出端子(50)连接到驱动元件(42)中的一个以为负载元件(52)供电。

Patent Agency Ranking