Udi: not required for product code.Implanted date: device was not implanted.Explanted date: device was not explanted.Occupation-clinical engineer.Pma/510(k): k130520.The actual sample was received for evaluation.Visual inspection confirmed the absence of breakage in it.It was confirmed that liquid was accumulated in the water channel as reported.The liquid was collected for sem-edx analysis.As a leak test, the blood channel of the actual sample was filled with colored water, blocked at the blood-outlet side, and then pressurized at 2 kgf/cm2 from the blood-inlet side.As a result, no leak was observed.As another leak test, the water channel of the actual sample was filled with colored water, blocked at the water-outlet side, and then pressurized at 3 kgf/cm2 from the water-inlet side.As a result, no leak was observed.The liquid collected from the actual sample was air-dried, and the deposit was analyzed by sem-edx (scanning electron microscope / energy dispersive x-ray spectroscopy).The result showed that the composition of the liquid was similar to that of tap water.From this, it was presumed that the liquid found in the water channel side was not that leaked from the blood channel side.A review of the device history record and product-release judgement record of the involved product code/lot# combination was conducted with no findings.Based on the provided information and investigation results, there is no definitive evidence that this event was related to a device defect or malfunction.The investigation results verified the returned sample was of normal product.It is likely that water went into the water channel during the setup of the circuit due to some factors.However, the exact cause of the reported event cannot be definitively determined based on the available information.(b)(4).
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The user facility reported that the involved capiox custom pack was used pre-treatment.After priming, when going to attach a coupler to heat exchanger they found a small amount of liquid accumulated in the water-in port.Although cardioplegia line (cx-xp06401) and shunt sensor (cv-510h1) had been attached already, the circuit was changed out.The operation was finished with no problem.The procedure outcome was successful.The patient was not harmed.
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