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    • 19. 发明申请
    • Ultrasonic Endoscope
    • 超声内窥镜
    • US20080200814A1
    • 2008-08-21
    • US11666779
    • 2005-10-04
    • Takuya ImahashiAkiko MizunumaYukihiko SawadaKatsuhiro WakabayashiSunao Sato
    • Takuya ImahashiAkiko MizunumaYukihiko SawadaKatsuhiro WakabayashiSunao Sato
    • A61B8/14
    • A61B8/12A61B8/445A61B8/4483B06B1/0633
    • The present invention provides an ultrasonic endoscope, comprising: an ultrasonic transducer in a cylindrical shape including a plurality of piezoelectric devices, an acoustic matching layer stacked on a principal plane on a sound emitting plane side, an acoustic lens on a plane of the acoustic matching layer opposite to a plane facing the piezoelectric devices, and a backing material stacked on another principal planes of the piezoelectric devices; an endoscopic observation and endo-therapy unit provided, for performing endoscopic image observation, at a proximal end side of the ultrasonic transducer; a cable ass'y including a plurality of cables for transmitting signals to and from the ultrasonic transducer. In the above configuration, the cable ass'y is arranged in such a manner that the cable ass'y passes through an inside portion of the ultrasonic transducer, and is connected to the ultrasonic transducer at a distal end side of the ultrasonic transducer. Thereby, an ultrasonic endoscope is provided that has an ultrasonic transducer in which the ultrasonic transducer and coaxial cables will not be disconnected even under thermal or mechanical loads.
    • 本发明提供一种超声波内窥镜,其特征在于,包括:圆筒状的超声波振子,包括多个压电元件,声发射平面侧的主平面上叠加的声匹配层,声匹配平面上的声透镜 与面向压电元件的平面相对的层,以及堆叠在压电器件的另一个主平面上的背衬材料; 在超声波换能器的基端侧设置有用于进行内窥镜图像观察的内窥镜观察和内窥治疗单元; 电缆组件包括用于向超声换能器发送信号的多条电缆。 在上述结构中,电缆组件被布置成使得电缆组件穿过超声波换能器的内部,并且在超声换能器的远端侧连接到超声波换能器。 因此,提供了具有超声波换能器的超声波内窥镜,其中即使在热或机械负载下,超声波换能器和同轴电缆也不会断开。