Active implantable medical device equipped with means for the diagnosis of respiratory disorders, with sophisticated detection of respiratory cycles with artifacts
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United States of America Patent
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Oct 25, 2011
Grant Date -
Dec 1, 2005
app pub date -
Mar 31, 2005
filing date -
Apr 5, 2004
priority date (Note) -
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Abstract
An active implantable medical device comprising circuits for measuring trans-thoracic impedance and delivering an impedance signal varying with respiratory activity of a patient. A signal representative of the respiratory activity of the patient is delivered starting from the impedance signal, and circuits for diagnosing respiratory disorder analyze variations of the respiratory signal on a plurality of successive cycles to detect there a profile of predetermined variation in relation to a given respiratory disorder. The device also includes circuits for automatically controlling respiratory cycles with artifacts, able to identify in the impedance signal a jump of static impedance, and/or to identify in a respiratory cycle or in a sequence of respiratory cycles a predetermined singularity representative of a cycle with artifact.
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