| 摘要 |
<p>A short axis oscillating ultrasonic probe (U) is configured such that: a piezoelectric element group (2) that is arranged in a long axis direction and that has an acoustic lens (6) on an ultrasonic wave transmitting and receiving surface thereof is provided on a rotational retention base (1); the rotational retention base (1) is housed within a sealed container (3) so as to rotate and oscillate in a short axis direction of the piezoelectric element group (2); ultrasonic waves that are transmitted and received from the ultrasonic wave transmitting and receiving surface of the piezoelectric element group (2) are mechanically scanned in the short axis direction; and a liquid (L) that serves as an acoustic medium is filled within the sealed container (3); and has a means for absorbing unwanted ultrasonic waves that propagate in the long axis direction, between the ultrasonic wave transmitting/receiving surface and the inner circumferential surface of the sealed container (3), and as the means for absorbing unwanted ultrasonic waves, a projecting section (6b) is provided on both end sides of the acoustic lens (6) positioned in the long axis direction. As a result, there is provided a short axis oscillating ultrasonic probe that reduces operation processes in manufacturing the probe while achieving reliable sealing as well as absorption of unwanted ultrasonic waves, and that reduces the weight of the probe while achieving an excellent level of operability during diagnosis.</p> |
