Ultrasound catheter with mechanically steerable beam

Details Ultrasound catheter with mechanically steerable beam Ultrasound catheter with mechanically steerable beam

1993-12-17

1995-01-03

Jaworski, Francis

Surgery

Truss

Pad

12866010, A61B 812

Patent

active

053776852

ABSTRACT:
The catheter has a mechanically steerable beam which can be directed at a variable angle with respect to an axis of rotation of the catheter. The ultrasonic transducer can be mounted in a pivoting head and steered by shape memory alloy wires subject to controlled ohmic heating. A feedback system including a marker wire embedded in a capsule wall of the catheter's outer tube can be used to determine the beam angle.

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Transvascular Intracardiac Applications of a Miniaturized Phased-Array Ultrasonic Endoscope--by Lilliam M. Valdes-Cruz, MD, et al. Division of Pediatric Cardiology, 225 Dickinson Street, (H-814-A), San Diego, Ca. 92103-Circulation-vol. 83, No. 3, Mar. 1991, pp. 1023-1027.

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