ULTRASONIC PROBE, ITS MANUFACTURE AND MEDICAL ULTRASONIC DIAGNOSTIC EQUIPMENT USING THE ULTRASONIC PROBE

摘要

PROBLEM TO BE SOLVED: To attain high image quality for an image, without causing deterioration in the S/N ratio and to enhance yield by facilitating the manufacture of the probe by adopting a structure which does not completely cut off a groove in a minor axis direction in orthogonal element split grooves in 2-ways in the ultrasonic wave diagnostic probe adopting a system, where vibrators are arranged in two-dimension.;SOLUTION: A flexible board 26, having a signal wire and a connection section corresponding to each element arranged in two-dimension, is connected to independent elements 25, 25', 25" that are formed by the prescribed number of lengthwise grooves 24, each having a prescribed width and a prescribed depth at a prescribed pitch to a lower electrode 22 of a vibrator 21, an acoustic attenuation layer 27 is fixed to the rear side, a ground electrode 29 is fixed to an upper electrode 23 at an end 28 which does not generate ultrasonic waves and an acoustic matching layer 30 is fixed to the electrode 23 at an area generating the ultrasonic waves and an acoustic lens is fixed to the electrode 23 at an uppermost face.;COPYRIGHT: (C)2000,JPO