| 摘要 |
<p>An ultrasonic endoscope by which a positional relationship can be grasped even in the width direction of ultrasonic transducers. The ultrasonic endoscope performs three-dimensional scanning operation by using an ultrasonic transducer array having plural two-dimensional ultrasonic transducer arrays (TA1 to TA12) arranged in a semicircle form or the like, and includes plural signal interconnections (EL 1-1 to EL 15-5 ) each for inputting the same drive signal to the individual electrodes of the ultrasonic transducers located in the same row and column in the plural two-dimensional ultrasonic transducer arrays, and plural common interconnections (G1 to G12) each for connecting common electrodes of the plural ultrasonic transducers included in respective one of the plural two-dimensional ultrasonic transducer arrays to a fixed potential.</p> |
