| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasound probe allowing high quality three dimensional image to be obtained in real time. <P>SOLUTION: The ultrasound probe includes: a tube a tube having a hollow portion that is formed in a long-axis shape and is extended in the direction of the long axis, as well as, at a tip end thereof, a recess with an open window; a rotating member that is held in the recess and is rotated about a central axis oriented in the direction from the inside of the recess to the window; a driving cable that passes through the hollow portion and is used for transmitting a rotating force to the rotating member; a piezoelectric vibrator that has an ultrasonic-wave transmitting/receiving surface and is supported by the rotating member so as to swing the ultrasonic-wave transmitting/receiving surface about a swing axis that is orthogonal to the central axis; a permanent magnet that is provided on one of the rotating member and the piezoelectric vibrator; an electromagnet that is provided on the other of the rotating member and the piezoelectric vibrator so as to be opposed to the permanent magnet; and a power supply cable that passes through the hollow portion and supplies, to the electromagnet, an alternate current for swinging the piezoelectric vibrator. <P>COPYRIGHT: (C)2010,JPO&INPIT |
