ULTRASOUND ENDOSCOPE SYSTEM AND ULTRASONIC TRANSDUCER

WIPO Patent Application WO/2021/114097

A1

Provided are an ultrasonic transducer and an ultrasound endoscope system; an ultrasonic wafer (2) of the ultrasonic transducer surrounds the outer peripheral surface of an annularly arranged backing ring (1); an inner electrode layer (3) is located on the inner ring of the ultrasonic wafer (2); an electric pulse is applied to excite the inner surface of the ultrasonic wafer (2); an outer electrode layer (4) is located on the outer peripheral surface of the ultrasonic wafer (2); the outer surface of the ultrasonic wafer (2) is excited by applying an electric pulse; the electrode direction of the inner electrode layer (3) is arranged perpendicular to the electrode direction of the outer electrode layer (4); by means of changing the excitation position of the inner electrode layer (3) and the outer electrode layer (4) on the ultrasonic wafer (2), the ultrasonic transducer can be adjusted in the circumferential direction and the focus position, thus the imaging of the ultrasonic transducer in the sound field area is uniform and consistent.

MA TENG (CN)
HUANG JIQING (CN)
LI YONGCHUAN (CN)
WANG CONGZHI (CN)
LIU JIAMEI (CN)
LIU XIANGLI (CN)
YANG YE (CN)

PCT/CN2019/124336

June 17, 2021

December 10, 2019

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SHENZHEN INST ADV TECH (CN)

A61B8/12

CN110368032A	2019-10-25
CN110235022A	2019-09-13
CN109431548A	2019-03-08
CN108027436A	2018-05-11
CN106859700A	2017-06-20
CN104582586A	2015-04-29
US20060103265A1	2006-05-18

SHENZHEN IPLUS INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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