Surgery – Truss – Pad
Patent
1991-03-04
1992-05-05
Jaworski, Francis
Surgery
Truss
Pad
12866007, 7386125, A61B 802
Patent
active
051098571
ABSTRACT:
Disclosed is an ultrasonic method of measuring the movement of a particle in a test region. The method comprises processing a modulated signal returned from the test region to detect a first range of feature data and then processing a modulated signal returned from the test region to detect a second range of feature data. The second range of feature data is then compared to the first range of feature data to determine the positional displacement between at least one feature in the second range of feature data and the closest adjacent feature in the first range of feature data. The positional displacement indicates the movement of a particle in the test region. Also disclosed is an apparatus for carrying out the foregoing method.
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Roundhill David N.
von Ramm Olaf T.
Duke University
Jaworski Francis
Manuel George
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