Arthrex Angel, Руководство оператора

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Troubleshooting
Angel ® cPRP System Operator’s Manual
5-7
Other Operational & Troubleshooting Tips
1.
Following any supposed electronic issue or repeating false alarms, the device should be
completely powered down then restarted.
2. Blank screen after turning power on
a. This can be caused by an electrical overload on the power board due to increased power
consumption by the centrifuge drive motor. This occurs when the Separation Chamber Plate is not
completely locked into the centrifuge. The “safety wings” on the centrifuge rotor will stick out
slightly and can hit against the black stator arm. The drag of the wings hitting the stator arm causes
increased power utilization and can burn out the power board.
b. If the Separation Chamber Plate is not properly secured inside the centrifuge chamber, safety
wings along the edge of the centrifuge will not retract. Silver scratches/gouges horizontally on the
underside of the stator arm are evidence of the improper use (see image below).
Improper installation of the Separation
Chamber Plate will result in damage to
the stator arm in the picture.
The damage is caused by the safety
wings striking the stator arm as the
centrifuge rotates.
This will ultimately damage the
electrical system.
3. Insufficient Fill
a. Occurs when air is detected by the sensor before the desired amount of blood has been pumped
into the variable volume separation chamber. This typically happens when the set volume is
greater than the volume contained in the whole blood bag.
b. Volume deficiencies can be made up by adding an appropriate amount of citrated whole blood if
available. If the addition of more blood is not an option, sterile saline may be substituted to the
whole blood bag (or ACD-A provided that the total amount of ACD-A does not exceed 10%).
c. After two attempts to continue processing, the machine will default to “end case” and not allow
processing to continue. At this point, the user should end case which transfers the blood back from
the variable volume chamber into the whole blood bag. End Case does not mean that you have to
discard the disposable. After ending the case choose a lower volume setting and begin processing
blood again.
4. Cannot load the separation cassette into centrifuge
a. Occurs when air or fluid is trapped in the expandable bladder.
b. If the disposable tubing is loaded in the peristaltic pump head, the trapped air/ fluid can be
removed by twisting the pump head clockwise (to the right).