biodex PULMONEX II Operation Manual page 22

"TO PATIENT" BAG FILLS DURING STUDY
Leak around face mask or nose clamp when mouthpiece is used make sure face mask retainer is tight.
External hose cracked
Blower to 10-way valve fitting broken
Oxygen valve leaks
LOW COUNTS THROUGHOUT STUDY
Vial not completely emptying
Not enough xenon to start study
Gun clogged
LOSING COUNTS
Nose clip not being used with mouthpiece
Leak around mouthpiece or face mask
Cracks in external hose
Bacteria filter is absorbing xenon
Plug-in injection fitting is not capped
STRONG BREATHING RESISTANCE
Hoses are too long
Hoses on patient's side of Hans Rudolph Valve
Hans Rudolph Valve (Y or t style) is upside down
One-way valves sticking
Blowers running too fast
"FROM PATIENT" BAG NOT EMPTYING DURING WASHOUT
Shipping cap not removed from exhaust port
Patient air flow blower speed set too low
Trap air flow blower speed set too low
Blowers not running
Breathing bags crimped
Charcoal has settled in lead cartridge
12
Make sure there is a tight seal around the
mouthpiece and that nose clamp is being used
Replace hose
See Test B
Replace Oxygen valve
(See procedure to test for leaks, Test C)
Check vial before and after study
Use bigger dose of xenon
Check gun
Use nose clip
Make sure mask retainer or mouthpiece is
secured properly
Replace hose
Use Biodex Medical Systems recommended
bacteria filters (check filter for activity)
Cap luer lock plug-in injection fitting
Reduce length of tubing to 24" maximum for
blue corrugated tube or 36" for 1-1.125"
smooth-bore hose. Use tubing as short as
possible.
Remove hose. Bacteria filter and face mask
should be affixed directly to Hans Rudolph
Valve.
Hans Rudolph Valve should be attached so
that air flows in on the left and out on the
right. Green dot sticker faces up.
Replace Hans Rudolph Valve
Reduce blower speed
Remove cap from exhaust port
Turn speed up to 60, higher if necessary
Generally, the trap air flow cabinet blower
speed is set at 50, however, on some patients
it will have to be turned up
Check power or replace blower
Uncrimp bags
Remove cartridge, turn upside down and
shake gently, then replace cartridge
PULMONEX II DOUBLE TRAP XENON SYSTEM