Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-09-21
1999-06-29
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600466, 600467, A61B 800
Patent
active
059161701
ABSTRACT:
An ultrasound imaging apparatus for measuring the curvature of a vessel consisting of a distal transducer mounted on a transducer supporting device. A resilient deformable material is attached to the transducer supporting device and allows the angular orientation of the transducer to change based on the local vessel curvature. The ultrasound imaging apparatus emits ultrasound radiation from multiple pulsed electronic signals as the apparatus is moved through a vessel or sheath catheter at a known velocity. The distal transducer receives the scattered ultrasound radiation and differences in the phase shifts of the scattered ultrasound radiation are analyzed to detect or measure curvature.
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Fitzgerald Peter J.
Kino Gordon S.
Kolz Matthew L.
Imam Ali M.
Lateef Marvin M.
The Board of Trustees of the Leland Stanford Junior University
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