Newport Medical Instruments Newport HT50, Руководство по эксплуатации

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DESCRIPTION OF CONTROLS, INDICATORS, ALARMS & CONNECTIONS
3-10
OPRHT50NA B0908
NOTE: The minimum target airway pressure is 5 cmH
2
O / mbar
above set baseline pressure.
P trig (sensitivity)
Range: 0.0 to –9.9 cmH
2
O/mbar
The P trig setting determines trigger sensitivity in terms of how far
airway pressure must drop below the set baseline pressure for a
patient’s spontaneous efforts to be detected. The P trig LED
indicator illuminates each time the airway pressure reaches the
set P trig level, and turns off once the airway pressure has
returned to baseline pressure. The blinking P trig LED is referred
to as the Patient Effort Indicator. The P trig value is displayed in
the adjacent window. Set Ptrig as close to 0.0 cmH
2
O as
possible without autotriggering to maximize triggering synchrony.
PEEP/CPAP
Range: 0 to 30 cmH
2
O/mbar
The PEEP/CPAP setting establishes airway pressure in the
patient circuit during the exhalation phase. It is also referred to as
base or baseline pressure. The set PEEP/CPAP value is
displayed in the adjacent window.
NOTE: In Pressure Control ventilation, PEEP/CPAP cannot be
set higher than 5 cmH
2
O/mbar below the set Pressure Control
setting.
NOTE: The value of PEEP/CPAP plus P support cannot exceed
60 cmH
2
O/mbar.
P support
(pressure support)
Range: 0 to 60 cmH
2
O/mbar
The P support (pressure support) setting determines the target
rise/change in pressure during inspiration for patient triggered
spontaneous breaths in SIMV and SPONT modes. The target
pressure is the set P support plus the PEEP level.
Any time the active P support control is pressed, P support flow
delivery slows to a lower level then it gradually increases to the
appropriate level as pressure rise is re-assessed.
NOTE: The value of PEEP/CPAP plus P support cannot exceed 60
cmH
2
O/mbar.