A1: patient identifier: requested, not provided, a2: age & date of birth: requested, not provided, a3: patient sex: requested, not provided, a4: weight: requested, not provided, a5: ethnicity: requested, not provided, a6: race: requested, not provided, d6a: implanted date: device was not implanted, d6b: explanted date: device was not explanted, e3: occupation: inventory.The actual device has not been returned for evaluation.The investigation is currently ongoing.A follow-up report will be submitted once the investigation is complete.
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This report is being sent as follow-up no.1 to update section d9, section h3, and to provide the completed investigation results.One tr band was returned to for evaluation.The sample was subject to visual analysis.No visible damage was noted on the band or balloons.9 ml of air was left in the balloons.The sample was subject to leak testing.Approximately 18 ml of air was injected into the band and the band was submerged in a water bath for approximately 30 seconds.No air bubbles were observed from the band or balloon assembly.The sample was subject to additional leak testing.Approximately 15 ml of air was injected into the band and the band was placed in its holder for 12-24 hours.After 12 hours the air was removed from the band and 14 ml of air was left in the balloon assembly.The sample passed manual leak testing.The check valve was deconstructed to check for damage or foreign matter.Upon deconstruction no foreign matter or damage was observed from the check valve.The complaint cannot be confirmed for air leakage issues because the sample passed all leak testing, and no damage or foreign matter was found in the check valve.The exact root cause could not be determined.It is unlikely the reported issue is a manufacturing issue.Review of device history record (dhr) showed there were no issues noted during manufacture of the product that could have contributed to this complaint condition.Currently no action is recommended since this risk evaluation is within the predetermined limits in the design failure mode and effects analysis (dfmea).Based upon the inspection of the returned sample the reported event was reassessed and deemed not reportable.
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