Noninvasive technique for identification of structural integrity of Bjork Shiley convexo-concave mechanical heart valves
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United States of America Patent
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Feb 7, 2012
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N/A
app pub date -
May 29, 2007
filing date -
Jul 13, 2006
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Abstract
The present invention is a non-invasive method and apparatus to determine the structural integrity of an implanted BSCC by insonifying the implanted heart valve with a megahertz frequency to cause the structural components of the heart valve to vibrate at a kilohertz frequency range to cause the individual structural components of the heart valve being investigated to vibrate at their resonant frequency. From experimental testing, the Applicants have established resonant frequency ranges of certain structural components of the BSCC which indicate that at certain resonant frequency ranges the heart valve components are intact. At other resonant frequency ranges, certain components are in danger of breaking. At other frequency ranges, the components of the heart valve are fractured. Through the present invention, the condition of the BSCC can be determined in order to provide a clinical determination as to whether or not the implanted BSCC needs to be replaced.
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