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1. (WO2018142842) ULTRASONIC TRANSDUCER, ULTRASONIC PROBE, AND ULTRASONIC ENDOSCOPE

Pub. No.:    WO/2018/142842    International Application No.:    PCT/JP2018/000036
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Fri Jan 05 00:59:59 CET 2018
IPC: H04R 17/00
A61B 8/12
G01N 29/24
Applicants: OLYMPUS CORPORATION
オリンパス株式会社
Inventors: YOSHIDA, Satoshi
吉田 暁
Title: ULTRASONIC TRANSDUCER, ULTRASONIC PROBE, AND ULTRASONIC ENDOSCOPE
Abstract:
An ultrasonic transducer provided with: a plurality of piezoelectric elements for transmitting/receiving ultrasonic waves, the piezoelectric elements being formed in the shape of a rectangular column and arranged at intervals of a prescribed pitch so that the longitudinal directions thereof are parallel; a connection part for interconnecting the adjacent piezoelectric elements along the arrangement direction of the piezoelectric elements; an acoustic member for joining the piezoelectric elements and the connection part together; and a core member that has higher rigidity than does the connection part and is fixed to the connection part at a position so as not to intersect a direction in which the piezoelectric elements transmit/receive ultrasonic waves. This makes it possible to provide an ultrasonic transducer in which the pitch intervals of the piezoelectric elements are prevented from being shifted, an ultrasonic probe, and an ultrasonic endoscope.