10
PORTO
2
VENT™ CPAP
OS
System Oper
ator’s Manual
Part Number 1900-140 Rev I
Pressure Balanced Patient Valve and Inspiratory Check Valve The inspiratory valve opens to supply flow to a
spontaneous breathing patient during the inspiratory phase of breath delivery. The expiratory valve is pressure
balanced to precisely maintain CPAP levels and reduce patient effort to open and exhale through the valve. The
patient valve gas collector port rotates 360
O
and is a 22 mm I.D. and 30 mm O.D. port to accept filters and spirometry
devices.
CAUTION:
Do not use any other make or manufacturer of the pressure balanced patient valve that is not labeled
for use with the CPAP
OS
device. The patient breathing circuit must be connected as illustrated in section 2c and
described in section 3b of this manual. Failure to do so could result in device malfunction. The patient and
equipment must be observed constantly.
Over Pressure Relief Valve In the event of an occlusion and/or pressure build up in the CPAP
OS
system, the Over
Pressure Relief Valve is preset to relieve pressure at 22 cmH
2
O.
Anti-asphyxiation Port In the event of complete gas supply failure the Anti-asphyxiation Port allows the
spontaneous breathing patient access to ambient air.
Outlet Port Connector The Outlet Port Connector is a locking bayonet connector used to attach the corrugated
main tube, and engage the airway pressure line.
