It was reported that during treatment with an ak 98 machine, the device triggered an unspecified alarm and after six minutes into treatment, a reverse ultrafiltration occurred.There was no patient injury or medical intervention associated with this event.No additional information is available.
|
The device was evaluated and repaired on site by a local engineer.A short, simulated therapy was successfully performed.A photograph of the sample was provided for evaluation which showed the triggered alarm.The reported condition was verified.The most likely cause of the condition could be related to uf control out of calibration.The o-ring of degassing chamber, o-ring of quick connector and o-ring of water level sensor were replaced.Calibrated uf cell tuning, and variable flow were performed.A service history review was performed and revealed that the device has no previous service events; therefore, servicing did not cause or contribute to the reported event.Should additional relevant information become available, a supplemental report will be submitted.
|