Introduction Servo-i Ventilator System
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The upper part of the Patient Unit contains the
inspiratory section and the expiratory section.
The main parts of the inspiratory section are the:
14. Two gas modules, Air and O
2
, for regulation of
the inspiratory gas.
15. Connector muff.
16. Inspiratory pipe with housings for the O
2
cell and
for the safety valve.
17. O
2
cell incl. bacteria filter.
18. Safety valve.
19. Temperature sensor (inside the O
2
cell connector).
20. Inspiratory pressure transducer tube incl. bacteria
filter, to connect the inspiratory pressure
transducer.
The expiratory cassette (21) is a complete unit and
must not be disassembled. It contains the following
parts:
• Expiratory inlet with moisture trap.
• PC 1786 Expiratory channel cassette.
• Ultrasonic flowmeter.
• Heating foil to keep a stable temperature in the
expiratory gas.
• Pressure transducer connection, incl. bacteria
filter, to connect the expiratory pressure
transducer.
• Expiratory valve incl. valve membrane.
• Expiratory one-way valve.
The expiratory valve coil, mounted under the
expiratory cassette compartment, controls the valve
membrane in the cassette.
PC 1786 inside the expiratory cassette is electrically
connected to PC 1784 Expiratory channel via
PC 1785 Expiratory channel connector.
SVX9122
21
SVX9120
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