Intravascular, ultrasonic imaging catheters and methods for maki

Details Intravascular, ultrasonic imaging catheters and methods for maki Intravascular, ultrasonic imaging catheters and methods for maki

1989-04-28

1992-05-05

Jaworski, Francis

Surgery

Truss

Pad

A61B 812

Patent

active

051098610

ABSTRACT:
Novel intravascular, ultrasonic imaging catheters are provided which utilize thin layers of a flexible plastic material, such as PVDF, which can be spot polarized in active regions which are to serve as piezoelectric transducers. Thin layer metallic electrodes are deposited on opposing surfaces of these active regions. Strips of the appropriately configured material also having shielding and backing and/or core forming portions are spiral wound into a completed catheter. Alternatively, the catheters are fabricated from extruded PVDF tubing which may be formed around a central core which carries those electrodes which are to contact the inner surface of the extruded tube.

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