| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic wave probe in a coelom with improved bendability at a bending part as well as an adaptation to a narrow diameter and multi-channelization. SOLUTION: This probe has a vibration piece part 1 which is arranged in two or more channels, and transmits and receives an ultrasonic wave, a flexible base board 2 on which a signal line is printed, which is connected to each channel of the vibration piece part 1 to supply a transmission signal to the vibration piece part 1 as well as retrieves a reception signal from the vibration piece part 1. The flexible base board 2 forms at least two or more channel blocks into which the above several channels are divided and it is constituted by winding each channel block spirally.
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