| 摘要 |
PROBLEM TO BE SOLVED: To provide a diagnostic atheter dealing with intrinsic problems in the case of performing ultrasonic diagnosing and optical coherent tomography diagnosing, and especially arranging an optical fiber along a center axis inside a catheter, thereby narrowing the diameter of the catheter. SOLUTION: A rotating body 46 is provided inside an outer sheath 44, and the rotating body 46 includes a hollow torque wire 48 and a coaxial structure 50 provided in the inside. The coaxial structure 50 is provided with an optical fiber 34 arranged along the center axis, a signal electrode layer 52, and a ground electrode layer 56, etc. An optical member 60 is provided on the distal end of the optical fiber 34 and a light beam is formed by that. A head unit 64 is provided with a vibrator unit 76, and an ultrasonic beam 86 is formed by that. The optical fiber 34 is placed in the state of not being fixed to other structures. COPYRIGHT: (C)2009,JPO&INPIT |
