| 摘要 |
PROBLEM TO BE SOLVED: To hold an ultrasonic transducer in a stable position by placing inside the ultrasonic transducer each control cable including ultrasonic control wires, passing a number of signal cables through a soft part in such a way that they surround the control cables, so that even if the soft part constituting an inserted part is curved, forces do not work in the direction in which the ultrasonic control wires are pushed and pulled. SOLUTION: Two each of ultrasonic control 35 and angle control 36 cables, a total of four control cables, which comprise pairs of ultrasonic control wires 31 and angle control wires 32 passed through respective flexible sleeves 33, 34, are passed through an inside sheath member 37, and a number of signal cables 30 are arranged almost uniformly on the outer periphery of the inside sheath member 37 in such a way as to surround the overall periphery. With an outside sheath member 38 provided on the outer periphery of the arrangement of the signal cables 30 to combine the signal cables 30 into one bundle member 39, the bundle member 39 is passed through a soft part 1c, and the ultrasonic control wires 31 and the angle control wires 32 are always held approximately in the core positions of axes within the soft part 1c. |
