Method and apparatus for determining conditions of biological tissues
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United States of America Patent
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Dec 14, 2010
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N/A
app pub date -
Jan 10, 2008
filing date -
Apr 20, 2000
priority date (Note) -
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Abstract
The present invention relates to a method of determining characteristics of biological tissues in humans and animals. In particular, it relates to determining the characteristics of tissues such as the lungs and airways by introducing a sound to the tissue, and recording the sound. The invention further includes an apparatus capable of such measurement. In a first aspect of the present invention there is provided a method of determining characteristics of biological tissue in situ, including: introducing a sound to the tissue at first position; detecting the sound at another position spaced from the first position after it has traveled through the tissue; calculating the velocity and attenuation of sound that has traveled through the tissue from the first position to another position; and correlating the velocity and attenuation of the detected sound to characteristics of the biological tissue.
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