| 摘要 |
PURPOSE:To insert a vibrator in a blood vessel up to the fine part thereof and to obtain a good ultrasonic image reduced in rotary irregularity by constituting a rotation transmitting shaft by connecting the fine diameter shaft arranged on the side of the vibrator and having a diameter almost same to that of the vibrator and the large diameter shaft arranged on the side of a motor. CONSTITUTION:A probe 20 is equipped with the vibrator 22 arranged on the side of a support part 21 having an almost spherical leading end and a mirror 23 and has a rotation transmitting shaft 23 formed by connecting the fine diameter shaft 26 arranged on the side of the vibrator 22 and the large diameter shaft 27 arranged on the side of a motor M. The rotation transmitting shaft 24 transmits the rotatory power of the motor M in an arbitrary curved state to make it possible to rotate the mirror 23 and can be inserted in a blood vessel on the side of the vibrator 22 from an A-part. When the probe 20 is inserted in a blood vessel from the large diameter part of the blood vessel toward the fine diameter part thereof, even when there is a curved place on the way of insertion, the large diameter shaft 27 is curved in matching relation to this curving and the fine diameter shaft 26 penetrates into the fine part of a blood vessel along with the vibrator 22. |
