21
3.5.3 Trigger Sensitivity
Whenusingsynchronisedventilatormodes,thenetchangeofgasvolumeowcausedbythe
NOxBOX
i
maytripthetriggerowsetting.Alwayscheckthetriggersensitivityoftheventilatorafter
connecting the NOxBOXi to the patient circuit.
3.5.4 Maximum NO Dose Delivery
The NOXBOX is capped at maximum dose capability of 80 ppm in software.
Additionally,themaximumowcapabilityoftheNOxBOX
i
is physically limited. This will cause
somedoselimitationsathigherventilatorowrates.
The NOxBOX
i
iscompatiblewithawiderangeofNOsupplyconcentrations,notethatthephysical
owlimitationhaslesseffectonthe1000ppmcylindersupplycomparedtothe400ppmsupply.
SeeFigure3.5.41:GraphofNOxBOXiMaximumDosingCapability.
NOxBOX
i
Max. Dosing Capability
See Figure 3.5.4-1: Graph of NOxBOX
i
Maximum Dosing Capability
NO Dose (ppm)
Constant Flow Minute Volume (L/min)
0
10
20
30
40
50
60
70
80
0 10 20 30 40 50
1000ppm
900ppm
800ppm
500ppm
450ppm
400ppm
300ppm
250ppm
225ppm
200ppm