III. Purging Air from the Monitoring Line
A. Remove the vented cap from the stopcocks and the vented cover from the patient connector
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.
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
8‐12 Monitoring Invasive Blood Pressure
Connecting Kit to the Infusion Pump
Remove vented cap from the female port of flush device and con‐
nect flush device fluid line to distal connector of infusion pump
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.
Adjust the pump delivery regulator to a fluid flow rate sufficient to flush solution through the
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
After the system has been primed and mounted, zero the transducer using one of the
Expression MR400 Instructions for Use