Problem
Possible Cause
Action
CRYO Probe
getting colder
than -75C and
not defrosting
•
The ACM and Probe system is
flooded with liquid N2O.
•
The N2O quality is not
adequate to be used as a
refrigerant.
•
N2O cylinder contains a
siphon tube or a dip tube.
•
If Probe does not reach
desired Defrost temperature,
apply warm sterile saline to
the tissue and probe area as
necessary
Replace the tank hose
accessory which has canister
set with tank hose accessory
without canister set.
A001056 – Domestic Accessory
A001055 – International Accessory
Power-On ACM within a few
minutes of Cryo Probe use to
minimize N2O condensing in
system.
•
Medical grade nitrous oxide,
3ppm water maximum, is
preferred for use with
AtriCure cryogenic Devices.
•
Verify the N2O cylinder does
not contain a siphon tube or
dip tube. Cylinder valve body
should be blank (no mark of:
S, DT, or D).
xxxvi