Display Of Frequency And I/E Ratio Measured By Osiris 3 - Air Liquide OSIRIS 3 Manual De Uso

Osiris 3
This refractory period, moreover, has the advantage of ensuring at least a certain minimum inspiratory time, and
therefore at least a certain minimum tidal volume for any patient who might tend to cut his or her inspiratory
time too short.
If the practitioner wishes to place top priority on this safety feature, note that the refractory period may be delib-
erately extended (although only up to one second) by lowering the frequency setting or by increasing the value
of the I/E ratio.
This safety feature is useful in an emergency and transport ventilator, where monitoring is bound to be more
limited than on a resuscitation ventilator.
As an indication: on OSIRIS 3 this refractory period is at its maximum (1000 ms) for any frequency setting less
than or equal to 10 bpm (case I/E = 1/2), and for any frequency setting less than or equal to 15 bpm (case I/
E=1/1).
Each time the device is powered up, the default settings are used: TRIG = -1 cmH O, I/E = ½, Fmax = 40 bpm,
2
Pmin = 5 cmH O for software versions V1.020 or earlier, and 10 cmH O for software versions V1.021 or later.
2 2
3.4. Display of frequency and I/E ratio measured by OSIRIS 3
OSIRIS 3 displays measured values of the I/E ratio and respiratory frequency of the patient when the button is
pressed successively. . Parameters are displayed in the upper part of the screen for 5 seconds.
The respiratory frequency measured by OSIRIS 3 can, in certain cases (respiratory cycles started by the
patient), be greater than the frequency set on the unit.
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YL033700 - Rev. 3a - 2019-02