Systems, methods, and/or apparatuses for non-invasive monitoring of respiratory parameters in sleep disordered breathing
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United States of America Patent
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Feb 11, 2014
Grant Date -
Jan 21, 2010
app pub date -
Nov 13, 2007
filing date -
Nov 13, 2006
priority date (Note) -
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Abstract
In certain example embodiments, an air delivery system includes a controllable flow generator operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment and a pulse oximeter. In certain example embodiments, the pulse oximeter is configured to determine, for example, a measure of patient effort during a treatment period and provide a patient effort signal for input to control operation of the flow generator. Oximeter plethysmogram data may be used, for example, to determine estimated breath phase; sleep structure information; autonomic improvement in response to therapy; information relating to relative breathing effort, breathing frequency, and/or breathing phase; vasoconstrictive response, etc. Such data may be useful in diagnostic systems.
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