Patent ID: 6511431
Filing Date: 2003-01-28
Classification: A61B

Abstract:
A radial scan, forward viewing ultrasonic endoscope having an ultrasonic probe that is formed in annular shape to permit radial scan and which is provided at the front end of an insertion portion, and a front end portion body that is fitted with objective optics for examining the area ahead of said insertion portion and which has a smaller outside diameter in the front half which is fitted into said ultrasonic probe, wherein a plurality of flexible substrates for transmitting signals to and from said ultrasonic probe extend rearward from said ultrasonic probe, a flexible substrate passage hole of an arcuate cross-sectional shape through which said flexible substrates pass is formed in said front end portion body in an axial direction, and the wirings on said flexible substrates are connected to a signal cable passing through said insertion portion.