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Due to the little effort requirements for introduction and evaluation,
cost effective sensors (low follow-up costs) and the integration of
many functions in the instrument the diagnostic costs are extremely reduced!
Expensive effort sensors and thermistors, snore and position sensors are no longer necessary!
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Dr. Fenyves and Gut already developed 1991 a method, as by means
of differential pressure measurement the nasale and oral flow as
well as the snoring could be determined.
Thus the SleepDoc Porti was the first sleeping monitor using an inexpensive flow prong instead of expensive thermistor and microphone.
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