Getinge Maquet FLOW-i 4.2 User Manual

VR Balance (Volume Reflector Balance)
This metric describes the net flow of gas from
the volume reflector into the AGS system. It
is measured during the last complete breath
cycle.
A colored bar indicates the direction- and
amount of gas that flows through the volume
reflector.
The size of the bar is proportional to the flow,
a numerical value is displayed under the bar.
1
2
0.9
1.3
1. Exhaled gas flows toward the AGS.
2. Reflector gas (O
2
) flows toward the
breathing circuit.
RBF (Rebreathing Fraction)
This metric describes how much of the
exhaled gas is being re-used during each
successive breath (during inspiration). A value
higher than 50% means that exhaled gas
comprises more than half of the inspiratory
volume.
No single parameter alone controls the RBF;
in general a low FGF (Fresh Gas Flow) causes
a high re-breathing fraction.
Careful monitoring of the inspiratory O
2
is
advised when the RBF is high. Oxygen
concentration in the breathing circuit only gets
replenished via the FGF. Set O
2
concentration
and FGF must be combined in a way so that
the patient's oxygen demand is met.
The amount of fresh gas added to the
breathing circuit when minimal flow anesthesia
is used is very low due to high rebreathing
fractions. The system will allow re-breathing
fractions up to 95%.
Gas pressure
O
2
N
2
O
Air
4.3
4.5
3.9
3.3
3.5
4.8
112
FLOW-i 4.2, User's Manual
| 5
| System functionality |

Getinge Maquet FLOW-i 4.2 Specifications

General

Brand	Getinge
Model	Maquet FLOW-i 4.2
Category	Medical Equipment
Language	English