Patent ID: 9242121
Filing Date: 2016-01-26
CPC Classification: A61B,A61N,B06B,G10K

Claim Text:
1. An ultrasonic transducer including one or a plurality of ultrasonic emitting units, wherein wavefronts of ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are sphere surfaces with uniform radius, the one or the plurality of ultrasonic emitting units have a function of reflecting ultrasound, the one ultrasonic emitting unit forms a spherical resonant cavity or the plurality of ultrasonic emitting units form a spherical resonant cavity collectively, an internal cavity of said spherical resonant cavity has a complete spherical shell shape or a cross-sectional spherical shell shape with a spherical center therein, and the ultrasonic waves emitted by the one or the plurality of ultrasonic emitting units are focused on an area in which the spherical center of said spherical resonant cavity is located.