S A N T È • LÖW E N S T E I N S L E E P T H E R A PY D E V I C E S
Appendix 2 Pgs. 5-8
FOT- Functionality • With the help of Forced Oscillation Technique (FOT), our CPAP & APAP therapy devices reliably distinguish between obstructive & central apnea. • The sensitive FOT process uses airflow & pressure to measure resistance & obstruction in the upper airways to which the device then reacts.
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APAPFunctionality In the event of apnea, an oscillation signal is applied which has a frequency of about 4 Hz & an amplitude of 0.4 mbar. The flow response is the critical criterion in determining whether the apnea is central or obstructive.
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