| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic endoscope maintaining insertability of an insertion part and performing both optical observation and ultrasonic observation at the same time. <P>SOLUTION: The ultrasonic endoscope 10 includes; the insertion part 12; an operating part; an optical observation system; an ultrasonic observation system which has an ultrasonic transducer 52 at the distal end surface or further forward to the distal end of the distal end of the insertion part; and at least two working channels 22, 24 disposed in the insertion part. The ultrasonic observation system has a channel 26 disposed in the insertion part for an ultrasonic probe, and the ultrasonic probe 50 which is inserted into the channel for the probe so as to be rotatable around its shaft, while a central axis of the ultrasonic transducer is turned toward the either of the working channels. The optical observation system is placed in the approximately equidistance to the working channel at the distal end of the insertion part. <P>COPYRIGHT: (C)2011,JPO&INPIT |
