Covidien Newport HT70, Operator'S Manual

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Explanation of Modes and Controls
10-4 Operator's Manual
Backup Ventilation is functional in all modes.
Backup Ventilation is not active for 60 seconds after the user adjusts ventilator controls, changes
modes, or starts ventilation from the standby condition.
During Backup Ventilation, the Audio Paused/Reset button can be pressed to mute the audible
alarm. This will not cancel Backup Ventilation.
When linked with the Low Minute Volume alarm, Backup Ventilation is based on the monitored
inspiratory (on-airway flow sensor not in use) or expiratory (on-airway flow sensor in use) minute
volume. The inspiratory minute volume may be different from the expiratory minute volume in
some conditions, such as in the case of a patient breathing circuit or airway leak, a circuit discon-
nect, and between different breath types. Be sure to check, and if necessary, readjust these alarm
settings when installing or disconnecting the on-airway flow sensor.
10.8.1
Backup Ventilation in A/CMV and SIMV Modes
The factory default setting for Backup Ventilation in these two modes will increase the respiratory
rate by 1.5 times the set rate, up to a maximum of 99 b/min. The minimum breath rate delivered
is 15 b/min.
The respiratory rate (RR) will only increase up to a rate that produces a 1:1 I:E ratio even if the cal-
culated Backup Ventilation rate is higher.
10.8.2
Backup Ventilation in Spont Mode
The factory default setting for Backup Ventilation in the SPONT mode will implement these
changes:
•
Mode = SIMV mode
•
Rate = 15 b/min
•
Pressure Control breath type = 15 cmH
2
O above set PEEP
•
i-time = 1.0 sec
10.8.3
Cancellation of Backup Ventilation
User Canceled
If during Backup Ventilation, the user adjusts a ventilation parameter, Backup Ventilation is sus-
pended for 1 minute and all user-selected ventilation parameters are employed.
Sixty seconds must pass after parameter adjustments before a linked alarm violation will result in
Backup Ventilation.