Acoustic impulse respirometer and method
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United States of America Patent
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Dec 31, 1996
Grant Date -
N/A
app pub date -
Jan 10, 1995
filing date -
Jan 10, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for sensing respiratory motion to detect sleep apnea and the like. An acoustic pulse stimulator or generator located on one side of a body sends impulses through the body to impinge on one or more sensors on the opposite side of the body. Because time delay between transmitter and receiver is determined by distance, and because distance is directly related to breathing motions of the body, measurement of the time delay will have a direct correspondence to breathing motions.
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