Covidien Newport e360, Service Manual

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Mandatory Breath Types
Service Manual A-3
Figure A-1. Square Waveform in VCV
A descending ramp flow wave pattern delivers the set flow initially, decreases flow rate at a constant
rate until 50% of the initial flow is reached, and then terminates flow delivery when the set tidal
volume has been delivered. Reference
Figure A-2.
Figure A-2. Descending Ramp Flow Waveform in VCV
A.2.2
Pressure Control
Pressure Control ventilation provides time-cycled, pressure-limited mandatory breaths. Inspiratory
Pressure Limit and t Insp (inspiratory time) are set parameters with tidal volume and flow allowed to
vary to meet the set parameters. The Slope/Rise may be adjusted via the Advanced data set. A
Pressure Control inspiration terminates when the set inspiratory time has elapsed.

Note:
If the Slope/Rise control is set too low, breathing circuit pressure may not reach the pressure limit value by
end inspiration.
A.2.3
Biphasic Pressure Release Ventilation (Open Exhalation Valve)
Biphasic Pressure Release mandatory breaths are similar to Pressure Control mandatory breaths
except that the exhalation valve remains open during the inspiratory time. This allows the patient