Philips V200 - Manual (Page 78)

Chapter 7
7-8 Respironics V200 Ventilator Operator’s Manual REF 1057983 A
Operating Theory
The ventilator will reset out of Apnea Ventilation if the operator presses the
Alarm Reset button, or if the patient triggers two successive breaths.
Safety Valve Open (SVO)
Safety valve open is an emergency mode of ventilation that allows the patient
to breathe through the system whenever any of the following occur:
1. An occlusion is detected.
(The ventilator resumes normal breathe delivery if the occlusion is
removed.)
2. Loss of both the air supply and the oxygen supply occurs.
(The ventilator resumes normal breath delivery if the gas supply is made
available.)
3. The Ventilator Inoperative state (Vent InOp) is entered due to a hardware
malfunction that prevents breath delivery.
(The ventilator will not resume normal breath delivery in this case. Call for
service.)
During SVO:
1. The safety valve is opened,
2. The exhalation valve is opened,
3. The air and oxygen valves remain closed,
4. A high priority alarm is activated,
5. The Safety Valve Open indicator is illuminated,
6. The Normal indicator is turned off.
Parameters Used in Apnea Ventilation, Settings, and Alarm Limits
VCV PCV NPPV
Settings Tidal Volume
Peak Flow
PEEP
I-Trigger (pressure/flow)
Flow pattern
O
2
%
Insp Hold
Apnea Rate
Inhalation Pressure
Inhalation Time
PEEP
I-Trigger (pressure/flow)
Rise Time
O
2
%
Apnea Rate
IPAP
EPAP
Inhalation Time
Rise Time
I-Trigger (flow)
E-Cycle
O
2
%
Apnea Rate
Alarm
Limits High Pressure
Low Insp Pressure
Low PEEP
Low Mandatory Tidal Volume
High Rate
High Exhaled Minute Volume
Low Exhaled Minute Volume High Pressure
Low Insp Pressure
Low PEEP
Low Mandatory Tidal Volume
High Rate
High Exhaled Minute Volume
Low Exhaled Minute Volume Low Pressure
Low EPAP
Low Tidal Volume
High Rate
Low Exhaled Minute Volume
High Leak
Table 7-2: Parameters Used in Apnea Ventilation, Settings, and Alarm Limits