Edwards received notification from our affiliate in germany.As reported, during device preparation, black deposits were found on the inner surface of the 38 ml edwards locking syringe while filling with contrast.A new atrion inflation device was used for the procedure.The patient outcome was good.
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The device was returned for evaluation and an engineering evaluation was performed.The returned device was visually examined for any abnormalities and the following was observed: black particulates within atrion inflation device.Atrion supplier performed evaluation and the following observed: black substance was noted along the inside of the housing.Inner part of the housing exhibits an unknown crystalized substance.Delamination along the inside of the quad ring.Note: the quad ring passed the hardness test (shore a) and the noted delamination could be related to a chemical reaction.A review of edwards lifesciences risk management documentation was performed for this case.The reported event is an anticipated risk of the transcatheter heart valve procedure, additional assessment of the failure mode is not required at this time.The complaint of particulate was confirmed based on imagery and returned device provided for evaluation.A review of the dhr, lot history, complaint history, and manufacturing mitigation did not provide any indication that a manufacturing non-conformance contributed to the complaint event.A review of ifu/training materials revealed no deficiencies.As reported, ''during device preparation black deposits were found on the inner surface of the 38 ml edwards locking syringe while filling with contrast''.Per supplier investigation, ftir material analysis was performed on the black particulate and the test was inconclusive.Atrion was unable to replicate the substance within normal operating parameters and without visibly damaging the quad ring.There are also multiple mitigations such as regular cycling of the device to ensure smooth operation and finished good inspections before the device is packaged for shipment.Therefore, this event is considered an inconclusive isolated event.As the source of contamination remains unknown, a definitive root cause was unable to be determined at this time.Therefore, no further escalation (capa/scar/pra) is required.However, an awareness communication was performed by the supplier as a precautionary measure.Complaint histories for all reported events are reviewed against trending control limits monthly, and any excursions above the control limits are assessed and documented as part of this monthly review.
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