Getinge MAQUET BC 20 plus Gebrauchsanweisung Seite 14

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5 Connect the filtrate line with collection bag to the filtrate outlet connector.
6 Connect the outlet line, e.g., to the cardiotomy reservoir.
7 Ensure that all connections are pressure-tight.
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7.2 Priming the Hemoconcentrator
1 Keep the filtrate line closed.
2 Open the blood inlet and blood outlet, and prime the filter with priming fluid with sufficient
heparinization. Ensure that the priming fluid flows from the inlet to the outlet.
3 Remove all the air from the blood side. To do this, carefully tap the upper part of the hemo-
concentrator, e.g., with the heel of your hand. Do not strike it with a hard object.
4 Allow the priming fluid to circulate for several minutes at a slightly higher flow rate to re-
move any air bubbles which may be adhering to the inside of the system.
5 Turn the de-aired hemoconcentrator for the application such that the blood outlet is at
the bottom and the blood inlet at the top, in order to reduce the danger of an air emboliza-
tion.
6 Check the system for leaks.
7 Open the filtrate line with a moderate blood flow, and then carefully restrict the flow at the
blood outlet.
8 Remove the air from the filtrate side or ensure that the filtrate side fiber walls are wetted.
9 If all of the lines have been primed and de-aired, stop the circulation and disconnect all of
the lines.
7.3 Starting Hemoconcentration
WARNING!
Tube system which has not been completely de-aired.
Risk of embolisms in the patient.
Make sure that the tube system has been completely de-aired before starting perfusion.
▪
▪ Ensure that all connections and Luer lock openings are secured or closed before you start
extracorporeal circulation.
WARNING!
Pay attention to the correct direction of flow.
1 Open the clamp on the outlet tube.
2 Open the clamp on the inlet tube.
3 Open the filtrate line and start ultrafiltration with minimal flow and low pressure.
4 Increase the pressure and flow slowly to the required value.
7.4 Hemoconcentration During Perfusion
In order to start ultrafiltration during extracorporeal circulation, Maquet Cardiopulmonary recom-
mends the use of a vacuum pump on the filtrate side.
CAUTION! Only use a controlled, pressure-monitored vacuum source.
After the filtrate flow has started, you can remove the vacuum pump from the system.
NOTICE! Maquet recommends running the hemoconcentrator with priming liquid, e.g.,
NaCl 0.9%, and adequate heparinization of 5000 I.U., unless indicated otherwise.
1 Connect the hemoconcentrator to the set,
⇒ Preparation and Installation, page 13.
2 Close the filtrate outlet and release the blood flow slowly.
WARNING! Do not use hard objects, as they may damage the components. This can lead to em-
bolisms and infections.
3 Tap the tube system and the device with your hand to remove any gas bubbles still present
in the system.
4 Let the blood circulate for a few minutes until all the air bubbles have been removed.
5 Check the system for leaks.
6 Turn the de-aired hemoconcentrator for the application such that the blood outlet is at
the bottom and the blood inlet at the top, if applicable.
7 Open the filtrate line and start ultrafiltration.
Instructions for Use | 2.7 | G-153 | 07