ResMed Elisee 350, Clinical Manual

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NOT013281-8
Measurements
* These measurements are given in ATPD (Ambient Temperature and Pressure, Dry) conditions except for the expiratory
volume during patient ventilation. The latter is given in BTPS (Body Temperature, Ambient Pressure and Vapour Saturated)
conditions, unless the BTPS option is disabled. The volume and flow measurements are corrected in order to take into
account the oxygen content (the correction factor is calculated from the FiO
2
measurement).
** The F and I:E measurements are averaged over four cycles.
Oxygen consumption
In (A)CV mode, with V
T
= 500 mL, PEEP = 7 cm H
2
O, F = 15 bpm, and I:E = 1:2.0:
FiO
2
= 100%: O
2
consumption is 18 L/min ± 20%.
Interdependence of the parameters
Implicit (calculated) parameters
Some parameters are adjustable, others are calculated from the values set for the adjustable
parameters: they are called implicit parameters. Te is an example of an implicit parameter,
obtained from a calculation based on the values set for the adjustable parameters Ti and F
(Te = 60/F – Ti).
These parameters are max, Ti, Te and I:E.
Note:
Ti, I:E and max can be either adjustable or implicit parameters depending on the original
configuration selected for the ACV mode (parameter options). If the device beeps while the user
is setting the parameters, it means the I:E ratio has been inverted because of an adjustment to
one of the parameters.
Measurements (unit) Range
Actual
measurement
accuracy
Precision of
displayed values
PEEP (cm H
2
O) 0–100 ±
5% or
0.5 cm H
2
O
0.1
Pplat 0–100 ±
5% or
0.5 cm H
2
O
0.1
Pmean (cm H
2
O) 0–100 ±
5% or
0.5 cm H
2
O
0.1
Ppeak (cm H
2
O) 0–100 ±
5% or
0.5 cm H
2
O
0.1
FiO
2
(%) 0–100 ±
10%
1
Ftot (bpm)
** 1–99 ±
1
1
Ti (s) 0.1–9.99
10.0–99.9 ±
0.02%
±
0.02%
0.01
0.1
Te (s) 0.1–9.99
±
0.02%
0.01
I:E
** 1:9.9–1:0.1
1:99–1:9.9 ±
0.04%
±
0.04%
1:0.1
1:1
e (L/min)
0.1–99.9 ±
15%
0.1
evs (L/min)
0.1–99.9
±
15%
0.1
V
TI
or V
TE
(mL)
* 0–100
>100 ±
10 mL
±
10%
1
1
Vte (mL) (double circuit only) 0–100
>100 ±
10 mL
±
10%
1
1
°
V
°
V
°
V
°
V