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    • 8. 发明专利
    • Ultrasonic diagnostic system
    • 超声诊断系统
    • JP2008200355A
    • 2008-09-04
    • JP2007041290
    • 2007-02-21
    • Olympus Medical Systems Corpオリンパスメディカルシステムズ株式会社
    • FUJIMURA TAKENAO
    • A61B8/12
    • A61B8/4461A61B1/00179A61B1/0051A61B1/018A61B1/042A61B1/0623A61B1/12A61B8/12A61B8/4416A61B8/445A61B8/4483G01S7/52079G01S15/894G10K11/30
    • PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic system which enables the focusing of ultrasonic waves on the focal position of a lens with the surface of the lens on the sectional surface parallel with the center axis of rotation of a cap including the center of the sound axis of the ultrasonic waves and the surface of the lens on the sectional surface orthogonal to the center axis and miminizes the deviation from the focal position depending on neither the cap nor an acoustic medium. SOLUTION: The system includes the cap and the lens 63 provided on a piezoelectric element 61 while including an ultrasonic oscillator provided within the cap 24 freely rotatable with the center of the cap as the center axis of rotation and the acoustic medium filling the cap. The lens 63 collects the ultrasonic waves radiated from the piezoelectric element 61 while having a shape of making the first focal range L1 of the first lens surface 71 on the sectional surface parallel with the center axis of rotation containing the center S of a sound axis of the ultrasonic waves shorter than the second focal range L2 of the second lens surface on the sectional surface orthogonal to the center axis of rotation including the center S of the sound axis. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种超声波诊断系统,其能够使超声波在透镜的焦点位置上聚焦,其中透镜的表面在与包括所述透镜的盖的中心旋转轴线平行的截面上 超声波的声轴的中心和透镜的与中心轴正交的截面的表面,并且根据盖和声介质都不同于焦点位置的偏离。 解决方案:该系统包括设置在压电元件61上的盖和透镜63,同时包括设置在盖24内的超声波振荡器,该超声波振荡器可自由旋转,以盖的中心为旋转中心,声学介质填充 帽。 透镜63收集从压电元件61辐射的超声波,同时具有使第一透镜表面71的第一焦距范围L1与包含声轴的中心S的旋转中心轴平行的截面的形状 所述超声波比与包括所述声轴的中心S的旋转中心轴正交的剖面的第二透镜面的第二焦距L2短。 版权所有(C)2008,JPO&INPIT