Three portex bivona uncuffed neonatal and pediatric tracheostomy tubes were returned for evaluation.The customer reported that three devices contributed to five reported events.The customer returned three devices for evaluation, but it was not determined which device was associated with this reported occurrence; therefore, the evaluation of the three returned devices will be used for the medwatch.The devices were returned without their original packaging.Visual inspection found no damage on the devices and all devices were marked with an "x".All three devices underwent a dimensional inspection and all devices met specifications.A review of the manufacturing and quality process documents was conducted and found to be adequate.A review of the production floor was conducted and no findings were detected that could create the defect reported.Based on the evidence, the complaint was unable to be confirmed.There was no evidence found to suggest the event was caused from an intrinsic defect in the product.A device history review, relevant to the reported lot, did not find any non-conformities during manufacturing and the lot passed qa inspection prior to shipment.(b)(4).
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