Title:
ULTRASONIC TRANSDUCER
Document Type and Number:
WIPO Patent Application WO/2018/070043
Kind Code:
A1
Abstract:
An ultrasonic transducer is provided with: a drive unit which generates ultrasonic vibration along a longitudinal axis; a base end-side block which is provided on a first end side of the drive unit in the longitudinal axis; and a leading end-side block which comprises a first part provided on a second end side opposite to the first end side of the drive unit and adjoining a piezoelectric element, a second part continuous with the first part, and a third part continuous with the second part and configured such that the cross-sectional area thereof orthogonal to the longitudinal axis differs from that of the second part, and which is configured such that the position of a boundary between the second part and the third part matches or approximately matches an antinode of the ultrasonic vibration in a state in which the ultrasonic vibration is generated in the drive unit.
Inventors:
SHIMAMURA YUKIHIKO (JP)
Application Number:
PCT/JP2016/080568
Publication Date:
April 19, 2018
Filing Date:
October 14, 2016
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
H04R17/10; A61B18/00
Domestic Patent References:
| WO2014024550A1 | 2014-02-13 | |||
| WO2015072326A1 | 2015-05-21 | |||
| WO2016147769A1 | 2016-09-22 | |||
| WO2014065406A1 | 2014-05-01 |
Foreign References:
| JP2015521897A | 2015-08-03 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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