Operating The Open Reservoir Scavenger System - Dräger Narkomed 2B Operator's Instruction Manual

Operating the Open
Reservoir
Scavenger System
VENTILATOR BELLOWS
W/22MM VENTILATOR
HOSE TERMINAL
RELIEF VALVE
W/19MM SCAVENGER
HOSE TERMINAL
VENTILATOR 22MM
BREATHING HOSE
19MM
SCAVENGER HOSE
19MM SCAVENGER
HOSE TERMINAL
Because the open reservoir scavenger's reservoir canister is open to the
atmosphere, it does not require spring-loaded relief valves. If the waste
gas flow rate from the patient breathing system exceeds the disposal
system's suction flow rate, the canister initially accommodates excess
waste gas. After excess waste gas fills the canister, waste gas then exits
through the relief ports around the top of the canister. Thus, positive
pressure does not build up within the patient breathing system.
CAUTION: Waste gas vented from the relief ports may contaminate
the operating room. To prevent such contamination, be
sure to adjust the needle valve properly.
If the disposal system's flow rate (suction) exceeds the waste gas flow
rate from the patient breathing system, the disposal system draws room
air through the relief ports. Thus, the disposal system does not apply a
negative pressure to the patient breathing system.
Section 5 - Operation
Open Reservoir Scavenger
19MM
SCAVENGER
HOSE
VACUUM
TERMINAL
OP75123
5-5-3