GETINGE GROUP Maquet SERVO-s VENTILATOR SYSTEM V7.0 User Manual page 164

| 12 | Definitions |
Pressure trigger level
pressure that the patient has to create to
trigger the ventilator to deliver a breath.
PRVC—Pressure-regulated volume control
PS—Pressure support
PS above Phigh—Inspiratory pressure
support level for breaths triggered during the
Thigh period in Bi-Vent (cmH
PS above PEEP—Inspiratory pressure support
level for breaths triggered during the TPEEP
period in Bi-Vent (cmH
Re—expiratory resistance
RH—Relative humidity
Respiratory Rate—Rate of controlled
mandatory breaths or used for calculating
target volume (b/min)
Ri—inspiratory resistance
RR—Respiratory rate
Service card—Field service software card
SIMV—Synchronized Intermittent Mandatory
Ventilation
SIMV rate—Rate of controlled mandatory
breaths (b/min)
Start breath—Manually triggered set breath
STPD - Standard Temperature and Pressure
Dry. All measured, inlet gas pressures and
flows at +20 °C (standard temperature),
standard pressure 101.3 kPa and relative
humidity 0 % (dry).
T—Time
Tc—Time constant
Ti—Inspiration time
Ti/Ttot—Duty cycle or ratio of inspiration time
to total breathing cycle time (only during
spontaneous breathing)
Tidal Volume—Volume per breath or target
volume (ml)
164
— The negative
O)
2
O)
2
Thigh—Time at Phigh level in Bi-Vent (s)
TPEEP—Time at PEEP level in Bi-Vent (s)
—Flow
ee—End expiratory flow
leak—Leakage flow (l/min)
VC—Volume Control
VTe—Expiratory Tidal Volume
VTi—Inspiratory Tidal Volume
SERVO-s VENTILATOR SYSTEM V7.0, User's Manual