Ventilator accuracy, Ventilator components, Anesthetic agent delivery – GE Healthcare Aestiva_5 MRI anesthesia machine User Manual
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Ventilator accuracy
Delivery/monitoring accuracy
Volume
delivery:
> 210 mL = better than 7%
< 210 mL = better than 15 mL
< 60 mL = better than 10 mL
Pressure
delivery:
±10% or ±3 cm H
2
O
PEEP delivery:
±1.5 cm H
2
O
Volume
monitoring:
> 210 mL = better than 9%
< 210 mL = better than 18 mL
< 60 mL = better than 10 mL
Pressure
monitoring:
±5% or ±2 cm H
2
O
Alarm settings
Tidal volume
(VTE):
Low: OFF, 0 to 1500 mL
High: 20 to 1600 mL, OFF
Minute volume
(VE):
Low: OFF, 0 to 10 L/min
High: 0 to 30 L/min, OFF
Inspired oxygen
(FiO
2
):
Low: 18 to 100%
High: 18 to 100%, OFF
Apnea alarm:
Mechanical ventilation ON:
< 5 mL breath measured in 30 seconds
Mechanical ventilation OFF:
< 5 mL breath measured in 30 seconds
Low airway
pressure:
4 cm H
2
O above PEEP
High pressure:
12 to 100 cm H
2
O (increments of 1 cm H
2
O)
Sustained
airway
pressure:
Mechanical ventilation ON:
Plimit < 30 cm H
2
O, the sustained limit is 6 cm H
2
O
Plimit 30 - 60 cm H
2
O, sustained limit is 20% of Plimit
Plimit > 60 cm H
2
O, sustained limit is 12 cm H
2
O
PEEP and mechanical ventilation ON:
Sustained limit increases by PEEP minus 2 cm H
2
O
Mechanical ventilation OFF:
Plimit ≤ 60 cm H
2
O, sustained limit is 50% of Plimit
Plimit > 60 cm H
2
O, sustained limit is 30 cm H
2
O
Subatmospheric
pressure:
Paw < –10 cm H
2
O
Alarm silence
countdown timer: 120 to 0 seconds
Ventilator components
Flow transducer
Type:
Variable orifice flow sensor
Dimensions:
22 mm OD and 15 mm ID
Location:
Inspiratory outlet and expiratory inlet
Optional autoclavable sensor available
Oxygen sensor
Type:
Galvanic fuel cell
Life cycle:
Approximately 18 months (dependent on
usage)
Ventilator screen
Height:
7.6 cm/3 in
Width:
15.2 cm/6 in
Anesthetic agent delivery
Delivery
Vaporizers:
Tec 5, Tec 7
Number of
positions:
2
Mounting:
Tool-free installation Selectatec
®
manifold
interlocks and isolates vaporizers
Tec 5
Tec 7
NOTE: Tec 6 Plus Vaporizers cannot be used in MRI environments.
AN3175-E.qxd 19.6.2006 12:37 Sivu 4