Ultrasound probe and an ultrasonic diagnosis apparatus

An ultrasonic diagnosis apparatus with an ultrasound probe, the ultrasound probe comprising:

• a tube having a hollow portion that is formed in a long-axis shape and is extended in the direction of said long axis as well as, at a tip end thereof, a recess with an open window allowing ultrasonic waves to pass;
• a rotating member that is held in said recess and is rotated about a central axis oriented in the direction from the inside of said recess to said window;
• a driving cable that passes through said hollow portion and is used for transmitting a rotating force to said rotating member, or a feeding cable that supplies an electric power to a drive part for rotating said rotating member;
• a piezoelectric vibrator that has an ultrasonic-wave transmitting/receiving surface and is supported by said rotating member so as to swing said ultrasonic-wave transmitting/receiving surface about a swing axis that is orthogonal to said central axis;
• a permanent magnet that is provided on one of said rotating member and said piezoelectric vibrator;
• an electromagnet that is provided on the other of said rotating member and said piezoelectric vibrator so as to be opposed to said permanent magnet;
• and
• a power supply cable that passes through said hollow portion and supplies, to said electromagnet, a current for swinging said piezoelectric vibrator.