Surgery – Truss – Pad
Patent
1993-12-08
1995-10-17
Jaworski, Francis
Surgery
Truss
Pad
73642, A61B 800
Patent
active
054581206
ABSTRACT:
An ultrasonic transducer with a magnetostrictive lens for dynamically focussing and steering a beam of ultrasound energy is provided. The magnetostrictive lens is operable in response to a magnetic field generated by a coil such that the speed of propagation of the ultrasound beam is selectively controlled as the beam passes through the lens. The lens can be made up of first and second prisms wherein at least one of such prisms is magnetostrictive. Alternatively, the lens can be made up of an individual stage made of a composite having a plurality of elongated rods of magnetostrictive material cooperating in response to the control signal applied to the lens for selectively controlling the propagation speed of the ultrasound beam passing therethrough.
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General Electric Company
Jaworski Francis
Mora Enrique J.
Snyder Marvin
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