| 摘要 |
PROBLEM TO BE SOLVED: To stereoscopically scan sound wave beams and to prepare the ultrasonic three-dimensional images of high image quality by providing a rotation part provided with an ultrasonic wave array oscillator rotatable to a fixed part and rotating the ultrasonic wave array oscillator to the fixed part. SOLUTION: To the fixed part constituted of a sheath 19 provided with a spherical acoustic window on a tip part, a rotary transformer 6, a bearing 7, a rotary encoder 8 and a motor 9, the rotation part composed of an acoustic lens 2, an electronic sector array transducer (ultrasonic wave array oscillator) 3, a flexible printed board (FPC), a lead line 4 and a connector 5 is freely rotatably disposed. Then, the rotary shaft 12 of the motor 9 is connected to the rotation part and the rotation part is rotated by the drive of the motor 9. The stereoscopic ultrasonic wave scanning of a three-dimensional space is realized by ultrasonic wave beams transmitted and received to/from the electronic sector array transducer 3 simultaneously rotated by the rotation. |
