During a dialysis treatment, air passed through the bubble detector but the machine did not alarm and the venous clamp did not activate.
A nurse witnessed the event and stopped the blood pump, preventing air from entering the patient.
There was no injury or influence to the patient.
Inspection was carried out by nipro service technician.
The tech checked the physical condition of the clamp box (all ok) and then checked the calibration.
The tech re-calibrated the machine, then tested its function many times during simulated treatment and the machine worked as intended.
The machine is currently being used at the facility.
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