Philips Expression MR400 - III. Purging Air from the Monitoring Line; IV. Zeroing, Leveling and Calibration

8‐12MonitoringInvasiveBloodPres sure ExpressionMR400InstructionsforUse
C. ConnectingKittotheInfusionPump
III. Purging Air from the Monitoring Line
A. Removetheventedcapfromthestopcocksandtheventedcoverfromthepatientconnector
(distalstopcock).
B. Adjustthepumpdeliveryregulatortoafluidflowratesufficienttoflushsolutionthroughthe
system.
C. CarefullyfillfluidlinesofthemonitoringkitwithI.V.solutionuntilallairhas
beenremoved
fromthesystem.Activateflushdevicetofacilitatefillingandtoremoveairfromflushdevice.
Turnstopcockhandlesasapplicabletoprimethroughsideportsofstopcocks.Non‐vented
capsandcoversareprovidedinthesparepartsbagtoreplaceventedcapsandcoversas
required.
CAUTION
Pulling a vacuum to purge bubbles from the lines is not recommended. This practice may entrain
air or release air from solution. If the line is primed in a forward manner under pressure, care must
be taken to assure the maximum pressure specifications for the transducer are not exceeded.
Note
Take care to ensure no air is trapped in any components of the fluid pathway. The monitoring
system must be totally air-free for maximum performance, i.e., optimal dynamic response.
IV. Zeroing, Leveling and Calibration
A. After the system has been primed and mounted, zero the transducer using one of the
followingmethods:
Step Action
1 Removeventedcapfromthefemaleportofflushdeviceandcon‐
nectflushdevicefluidlinetodistal connectorofinfusionpump
administrationset.
CAUTION
In this application, the flush device is not intended to control flow
rate. Flow rate must be controlled by an infusion pump. Do not use
with pressure administration cuff.