Discrimination of cheyne -stokes breathing patterns by use of oximetry signals
A tidal breathing and saturation technology, applied in the evaluation of respiratory organs, diagnostic signal processing, applications, etc., can solve problems such as the inability to reliably interpret blood oxygen data, and achieve the effect of easy operation and low cost
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[0044] Embodiments of the present technology may include: systems, devices, classifiers, and / or methods. Here with reference to the accompanying drawings especially Figure 1-13 and 15, describing examples.
[0045] CSR is a periodic respiration believed to be caused by instability in the control of ventilation by the central nervous system. Respiration in patients with CSR is characterized by ebb and flow of respiratory volume, with recurring episodes between apnea / hypopnea and hyperpnea. Recordings of nasal flow signals on a compressed time scale showed a similar pattern to amplitude modulated (AM) waves.
[0046] During tidal breathing or CSR cycles, the pattern of waxing and waning changes in respiratory volume that can be seen in the nasal flow signal as a direct test of lung function also exhibits periodic changes in other cardiorespiratory parameters, such as blood oxygen saturation levels. For example, during prolonged periods of apnea, oxygen saturation may decreas...
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