Assembly and preparation
68
Instructions for use Primus Infinity Empowered SW 4.5n
Before the selftest is performed, all accessories* to
be used must be connected. The extendable hoses
must be drawn out to the length required by the
user. This is the only way of ensuring that the com-
pliance of the breathing system and breathing
hoses is determined correctly and a corrected tidal
volume is automatically applied during volume-con-
trolled ventilation.
Calculating the resistance of the breathing sys-
tem and connected accessories
To keep the patients' work of breathing as low as pos-
sible, according to ISO 8835-2 and ISO 80601-2-13
a total inspiratory and expiratory resistance of
6.0 hPa (cmH
2O) at 60 L/min may not be exceeded.
The "Technical Data" chapter states the inspiratory
and expiratory breathing resistance of the breath-
ing system, not including the breathing hoses. This
allows for the calculation of the resistance of the
breathing circuit using different hose sets and/or fil-
ters.
The following formula are used to calculate the re-
sistance (R):
R
Inspiration =
RBreathingsystem_insp + RInspHose + RBagHose +
R
InspFilter(port) + RInspFilter(Y-piece)
RExpiration =
RBreathingsystem_exp + RExpHose + RExpFilter(port) +
R
ExpFilter(Y-piece)
When calculating the resistance, only accessory re-
sistance values and peak flows must be used that
are applicable for the respective accessory cate-
gory and patient category, e.g., resistance value for
adults (60 L/min), for children (30 L/min), or for ne-
onates (5 L/min).
Using the Infinity ID hose system
When connecting a new Infinity ID hose system to
Primus Infinity Empowered, the device can auto-
matically detect the breathing hoses and is able to
monitor the correct assembly of the hose system.
If this function for Infinity ID hoses should not be
used it can be disabled in the Standby configura-
tion, see page 173.
The function for the transfer of ventilation settings
(TVS) needs to be enabled or disabled separately
by DrägerService and in the Standby configuration,
seepage45.
Every time a new Infinity ID hose system is con-
nected to the Primus Infinity Empowered the com-
pliance and leakage values stored on the hose can
be transferred and stored in the Primus Infinity
Empowered. When the next self test or leakage test
is performed, the values can be replaced by the de-
termined values.
Patient’s age
When ventilating, in particular neonates and chil-
dren, it is important to set the patient age properly.
Depending on the patients' age setting, the MAC
and xMAC algorithms, the trigger sensitivity, and
the sensitivity of the flow measurement adapt auto-
matically.
* If necessary, take into consideration additional parts such
as water traps or additional hoses.
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