Ultrasound transducer array probe for intraluminal imaging cathe

Details Ultrasound transducer array probe for intraluminal imaging cathe Ultrasound transducer array probe for intraluminal imaging cathe

1997-10-15

1999-09-07

Jaworski, Francis J.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

A61B 812

Patent

active

059479051

ABSTRACT:
An ultrasound transducer array probe for intraluminal ultrasound imaging is situated on a distal end of a catheter. The probe has a flex circuit that accepts terminations from a plurality of coaxial cables admitted through the catheter, and electrically conveys these signals to integrated circuits and an ultrasound array acoustic stack, preferably having seventy-two elements. The circuit has more than one layer of metal tracings to support complicated electrical interconnections. The acoustic stack preferably includes two quarter-wave matching layers and an acoustic backing layer composed of urethane, AIN.sub.3, tungsten trioxide, and micro-balloons. The flex circuit can be formed of two sections that are joined during manufacture.

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