Covidien Puritan Bennett 560 User Manual page 138

Glossary
Battery Level
Display of the remaining battery capacity; located adjacent to the battery symbol.
Bias flow
Turbine flow during exhalation phase through the patient circuit to avoid rebreathing.
bpm
An abbreviation for "breaths per minute," which is the unit of measure for breath rate (see below).
Breath Rate (Back Up R)
The total number of breaths, both machine and spontaneous, delivered by a ventilator in one
minute.
Caregiver
An individual who assists a patient with the tasks of daily living. This may be a family member, a
live-in assistant, or the nursing staff of a health care facility.
cmH O
2
An abbreviation for "centimetres of water," which is a unit of measure for pressure.
CPAP (Continuous Positive Airway Pressure)
Continuous airway pressure maintained throughout a spontaneous breath cycle.
Controlled breath
A volume or pressure breath triggered, controlled and terminated by the ventilator.
DC Power
Direct current.
Double Limb Patient Circuit
Patient circuit with a tube between the ventilator gas outlet and the patient for inspiratory gas and
another tube between the patient and the exhalation block for exhalation gas.
Exhalation Block
Part of the ventilator that allows the connection of the exhalation limb of the patient circuit. The
exhalation block is for single-patient use only.
Exhalation Phase
Phase of the breath cycle during which the patient exhales.
Exhaled Tidal Volume (VTE)
Exhaled volume measured for all breath types through the exhalation block. Monitored value
available only with double limb patient circuit.
Exhalation Sensitivity
The exhalation sensitivity (E Sens) level is a percentage of peak flow at which a pressure-supported
breath will be terminated.
Exhalation Tidal Volume (VTE)
Volume exhaled by the patient at each exhalation phase.
G-2
User's Manual