Surgery – Truss – Pad
Patent
1995-05-12
1997-02-11
Jaworski, Francis
Surgery
Truss
Pad
A61B 806
Patent
active
056010869
ABSTRACT:
A system for and method of detecting and measuring concentrations of an ultrasonically-reflective microsphere contrast agent involving detecting non-linear sum and difference beat frequencies produced by the microspheres when two impinging signals with non-identical frequencies are combined by mixing. These beat frequencies can be used for a variety of applications such as detecting the presence of and measuring the flow rates of biological fluids and industrial liquids, including determining the concentration level of microspheres in the myocardium.
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Cantrell, Jr. John H.
Pretlow, III Robert A.
Yost William T.
Edwards Robin W.
Jaworski Francis
The United States of America as represented by the Administrator
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