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This report is being sent as follow-up no.1 to update section h3, and to provide the completed investigation results.Based on the evaluation of the returned sample this report is now deemed not reportable.One tr band, inflator, and packaging label were returned to terumo medical corporation for assessment.The sample was subjected to visual analysis.No damage or deformities were noted on the band or inflator.There is 19 ml of air left in the band.The sample was subjected to leak testing.Approximately 18 ml of air was injected into the band and submerged in a water bath for 30 seconds.No air bubbles were observed from the balloon assembly or check valve.The sample passed leak testing.The sample was subject to additional leak testing.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 and 15 ml of air remained in the band.The sample passed additional leak testing.The check valve was deconstructed to check for damage or foreign matter.Upon deconstruction, no damage or foreign matter was found.One tr band, inflator, and packaging were returned for assessment, and no damage or deformities were noted on the device.The sample passed all leak testing, and no damage or foreign matter was found in the check valve.The complaint cannot be confirmed for air leakage issues because the returned sample passed all leak testing, and no damage or deformities were found in the check valve.The exact root cause cannot be determined.Review of the device history record (dhr) showed there were no issues noted during the manufacture of the product that could have contributed to this complaint condition.Currently, no action is recommended since the risk evaluation is within the predetermined limits in the hazard based risk table (hbrt).
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