Active medical device able to diagnose a patient respiratory profile
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United States of America Patent
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Dec 14, 2004
Grant Date -
Apr 24, 2003
app pub date -
Sep 24, 2002
filing date -
Sep 24, 2001
priority date (Note) -
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Abstract
An active medical device to diagnose a patient respiratory profile. This device is able to measure respiratory activity and deliver a signal (26) representative of the periodicity and amplitude of the successive respiratory cycles of the patient, in particular, a of minute ventilation (MV) signal. The device is able to analyze the aforementioned signal and discriminate between various types of respiratory profiles, in particular, to diagnose a respiratory profile of the Cheyne-Stokes type. This is achieved by detecting an alternation of respiratory cycles of hyperventilation (20) separated by periods of respiratory pause (22) or periods of hypoventilation or normal ventilation (24) and, in the latter case, to discriminate between periods of respiratory pause, corresponding to a profile of the Cheyne-Stokes (CSR) type, and periods of hypoventilation or normal ventilation, corresponding to a profile of the periodic breathing (PB) type.
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