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Calibration and Circuit Setup
Install the Shunt Bypass Line and CDI H/S CuvetteInstall the Shunt Bypass Line and CDI H/S Cuvette
If the Shunt Bypass Line and CDI H/S Cuvette are supplied in a single sterile package,
remove them from the package and aseptically insert them into the extracorporeal
circuit. If they are supplied as part of a tubing pack, this installation is not necessary.
Warning
Aseptic technique must be used when inserting the CDI H/S
Cuvette and Shunt Bypass Line into the extracorporeal circuit to
ensure that the blood-contacting surfaces remain sterile.
Use an arterial lter distal to the Shunt Bypass Line on the arterial
side of the circuit. This protects against introduction of air into
the blood circulation.
The presence of air bubbles on the optical window of the CDI H/S
Cuvette can result in reduced measurement accuracy. Intermittent
bubbles, once moved from the optical window, will not affect the
long-term accuracy of the system.
Avoid touching the optical surfaces of the CDI H/S Cuvette and
the optical CDI H/S Probe. Fingerprints on these surfaces can
reduce the accuracy of the system. If necessary, optical surfaces
on the CDI H/S Cuvette and CDI H/S Probe can be cleaned with a
soft, lint free cloth.
Caution
Secure the Shunt Bypass Line tubing connection with tie-bands.
The CDI Shunt Sensor can only be connected to the Shunt Bypass
Line in one direction. The Shunt Bypass Line must be oriented
in the bypass circuit to the desired placement of the BPM and
cable direction.
The Shunt Bypass Line must have the CDI Shunt Sensor side down
in the circuit, to prevent air trapping in the CDI Shunt Sensor.
The CDI H/S Cuvette contains an optical window that provides a
means of consistent optical connection between the optical CDI
H/S Probe and the CDI H/S Cuvette. Insert the CDI H/S Cuvette
face down into the circuit, so that the CDI H/S Probe, when
attached, will be on the lower side of the CDI H/S Cuvette. This
minimizes interference from intermittent air bubbles in the line.
End caps are provided (on the single sterile assemblies) at each
end of the Shunt Bypass Line and the CDI H/S Cuvette to protect
the blood pathways from contamination prior to insertion into the
tubing. The Shunt Bypass Line and CDI H/S Cuvette remain sterile
if the package is unopened and undamaged.
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