A visual, functional and scanning electron microscopy (sem) analysis was performed on the returned device.The reported inflation issue and leak were confirmed.Sem was performed to attempt to identify the source of the leak.Results of the sem analysis concluded that the balloon failure may be attributed to mechanical damage to the outer surface.Additional leak origin areas in the inner member or bonded regions of the luer could not be identified.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other similar complaints.The investigation was unable to determine a cause for the reported difficulties.Based on the evaluation of the returned unit and sem analysis results, the balloon failure may be attributed to mechanical damage to the outer surface which may have occurred due to interaction with calcification or associated devices.Additional leak origin in the inner member or bonded regions of the luer could not be identified.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.Na.
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