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Aespire View
3-12
M1132382
Passive AGSS (optional)
WARNING Always verify the proper operation of any gas scavenging
system; ensure the scavenging system is not occluded.
The passive AGSS (Anesthesia Gas Scavenging System) contains
both positive and negative pressure relief valves to protect the
breathing system and the patient. The outlet is a 30-mm connector on
the bottom of the receiver.
There is also a connector that may be used for scavenging the
sample from a gas monitor. The male luer inlet connection is located
near the 30-mm connector.
Passive AGSS is intended primarily for use in operating room
environments which have no active gas extraction system for waste
gas disposal. The disposal system generally consists of large
diameter tubing directly linking the passive AGSS with the building
exterior. The tubing should be as large in diameter and as short as
possible for the particular application.
Passive AGSS may also be used with a non-recirculating facility
ventilation system for waste gas disposal. The tubing connection from
passive AGSS to the non-recirculating facility ventilation system
should be an open connection, essentially at atmospheric pressure,
such as to an exhaust grill.
Note See “ Setup and Connections ” for additional scavenging connection
information.
Connecting passive
AGSS
To use the optional passive AGSS installed on the system, connect it
as follows:
1. Connect the proper large diameter tubing to the AGSS 30 mm
outlet connector on the bottom of the AGSS underneath the
breathing system.
Note The tubing connection from the passive AGSS to the non-circulating
facility ventilation system should be an open connection, essentially
an atmospheric pressure, such as to an exhaust grill.
2. Connect the free end of the tubing to the building exterior or
outside ventilation system.
3. The passive scavenging system relies on slight positive pressure
of gases, or on slight negative pressure caused by an exhaust
fan, to move gases through the system. For this reason, all
unused ports must be capped to prevent gas from leaking into the
room and to maintain the expected pressures.
Note In the event that excess gas accumulates in the scavenging system
and cannot exit the machine properly, pressure could build. If this
pressure reaches 10cmH20, the brass weight of the positive relief
valve will be lifted up allowing the gas to escape into the room. This
prevents the pressure from backing up into the patient circuit.