| 摘要 |
PURPOSE:To miniaturize a sub operation part by providing a through hole communicated with the hollow part of a probe shaft on the axial core part of a rotary signal transmission part and connecting a signal cable from an ultrasonic probe and a signal cable connected to the rotary side of the rotary signal transmission part through the through hole in the rear end side of the rotary signal transmission part. CONSTITUTION:A driving part unit 23 is composed of a base 24, shaft holder 25 provided on the base 24, hollow driving shaft 28 supported by the shaft holder 25 so as to be freely rotated, and motor 32 to drive the driving shaft 28. Then, the rear end part of a probe shaft 33 is fitted and fixed to the hollow part of the driving shaft 28 by a screw 34. In the axial core part of a rotary signal transmission part 42, a through hole 41 is provided to be communicated with the hollow part of the probe shaft 33. Then, in the rear end side of the rotary signal transmission part 42, a signal cable 40 connected with an ultrasonic probe 5 and a signal cable 46a, which is connected with a rotary ring 44 of the rotary signal transmission part 42, can be easily connected through the above mentioned through hole 41. |
