Title:
超音波照射装置とシステム及び超音波照射方法
Document Type and Number:
Japanese Patent JP6931877
Kind Code:
B2
Abstract:
An ultrasonic irradiation apparatus includes an ultrasonic resonator capable of generating ultrasound, a driving unit configured to drive the ultrasonic resonator, a case holding the ultrasonic resonator and the driving unit, an acoustic matching layer provided between the ultrasonic resonator and the case, and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area. The ultrasonic resonator is a piezoelectric resonator, the ultrasound diffusing material of the acoustic diffusion layer is made of a metal material of an acoustic impedance of at least 40, and the acoustic diffusion layer is provided in at least one of inside of the acoustic matching layer, inside of the case, and outside of the case.
Inventors:
Yohachi Yamashita
Application Number:
JP2018518224A
Publication Date:
September 08, 2021
Filing Date:
May 08, 2017
Export Citation:
Assignee:
Yohachi Yamashita
Kaikai Sangyo Co., Ltd.
Kaikai Sangyo Co., Ltd.
International Classes:
A61N7/00
Domestic Patent References:
| JP8280680A | ||||
| JP6209941A | ||||
| JP8280563A | ||||
| JP2007129554A | ||||
| JP6049054B2 |
Foreign References:
| CN203991230U | ||||
| US20130160199 |
Attorney, Agent or Firm:
Isao Hirosawa