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Title:
ULTRASONIC PROBE, ULTRASONIC DIAGNOSTIC DEVICE, AND METHOD OF MANUFACTURING ULTRASONIC PROBE
Document Type and Number:
Japanese Patent JP2018074529
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ultrasonic probe, an ultrasonic diagnostic device, and a method of manufacturing the ultrasonic probe that can restrain characteristic variations of ultrasonic waves transmitted and received by a plurality of piezoelectric elements.SOLUTION: An ultrasonic probe (20) including a plurality of piezoelectric elements (201) for each transmitting and receiving ultrasonic waves includes: a piezoelectric body (23); at least one layer of acoustic matching layer (24a and 24b) provided on the piezoelectric body; and a filler (26) that has filled a groove (25) formed from an outermost surface at an opposite side to the piezoelectric body side of the at least one layer of acoustic matching layer to the inside of the piezoelectric body so as to divide the piezoelectric body into divisions corresponding to the respective piezoelectric elements. The arithmetic average roughness of the outermost surface of the at least one layer of acoustic matching layer is 0.4 μm or less.SELECTED DRAWING: Figure 3

Inventors:
NAITO TATSUYA
OKADA KAORU
NISHIKUBO YUICHI
Application Number:
JP2016215774A
Publication Date:
May 10, 2018
Filing Date:
November 04, 2016
Export Citation:
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Assignee:
KONICA MINOLTA INC
International Classes:
H04R17/00; A61B8/14; H04R31/00
Attorney, Agent or Firm:
Gwangyang International Patent Office