3-2
V60 Ventilator Service Manual
1049766 Rev A
Chapter 3: Theory of Operation
proximal to the patient is used to monitor patient pressure. The internal
exhalation port continually clears gas from the ventilator airway to ensure
delivery of an accurate oxygen mixture.
Figure 3-1 shows a pneumatic schematic of the V60 ventilator.
Figure 3-1: V60 Ventilator Pneumatic Subsystem Schematic
3.1.1
Air Inlet
Ambient air is entrained through the
air inlet
.
3.1.2
Air Inlet Filter
The
air inlet filter
is designed to filter 5-micron particles at 70% efficiency at
150 SLPM flow.
High pressure
oxygen inlet
O
2
inlet
filter
O
2
inlet
pressure
Proportional
solenoid valve
Sintered flow
normalizers
Bypass
element
O
2
flow
sensor
Mixing
air & O
2
Air flow
sensor
Bypass
element
Air inlet
filter
Ambient air
inlet
Blower
Internal exhalation port
Patient port
Barometric
pressure sensor
Machine
pressure sensor
Proximal
pressure sensor
Machine
pressure
line
Purge
solenoid
Ambient
pressure
Ambient
pressure
Ambient
pressure
Proximal
pressure
Air inlet
Air inlet filter
Содержание Respironics V60
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