Fukuda Denshi DynaScope 7000 Series, Operation Manual

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Solution : The temperature monitoring will resume when the electrosurgery completes. If the
message remains to be displayed even after the electrosurgery, a failure of the
equipment can be considered. Cease the measurement and contact our service
representative.
Cardiac Output
The CO value varies more than
±
10% for consecutive measurements.
Cause 1 : The injection method is not appropriate.
Solution : Inject within 1 to 3 seconds.
Cause 2 : Injection temperature is not appropriate.
Solution : If iced injectate is used, pay attention not to warm the injector with hands.
Cause 3 : The thermistor location is not appropriate.
Solution : Reposition the thermistor by moving the catheter.
Cause 4 : Arrhythmia event has occurred during the measurement.
Solution : Wait until the patient has stable heart rhythm.
Cause 5 : There was patient body movement during measurement.
Solution : Have the patient stay still during the measurement.
Cause 6 : The patient’s hemodynamics has changed during measurement.
Solution : Wait until the patient has stable hemodynamics.
Abnormal measurement value is displayed.
Cause : The catheter size, injectate volume, catheter constant (CC) are not correct.
Solution : Set the proper condition, CC value for the used catheter.
The blood temperature (Tb), injectate temperature (Ti) are not displayed on the monitor.
Cause : The catheter is not properly connected.
Solution : Securely connect the catheter.
The thermodilution curve is deformed.
Cause : The injection is not smooth, steady motion.
Solution : Injection should be performed within 1 to 3 seconds.
The baseline of the thermodilution curve is displaced to the minus side. The “Lower Fault”
message is displayed on the monitor.
Cause : The blood temperature has not returned to a stable condition after measurement.
30sec.
(60sec.)
30% of the peak value
Peak Point
The thermodilution curve did not return to the cut off point soon enough. The temperature
must return to a point that is 30% of the peak value within 30 seconds (or 60 seconds
depending on the setup).
Solution : If performing continuous measurement, wait for 30 to 60 seconds and check that “Ready”
is displayed before performing the next measurement.
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