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Additional information was requested and received.The event unit was returned for evaluation.Upon inspection, engineering found that the leakages were caused by a small pinhole on the balloons.It is unclear what caused the pinhole in the balloons.The catheters are designed in such a way that the balloon will burst under excessive force.This design prevents the force from being applied to the catheter body and breaking inside the patient and also prevents excessive force from being applied to the vessel itself.The instructions for use (ifu) cautions the user that balloon degradation and rupture may result from exposure to adverse environmental conditions, excessive handling, or deposits within the vessel.It is unclear what may have caused the pinholes in the balloon.It is unknown under what conditions and with what type of equipment or instruments the catheter may have come into contact.Applied medical instructions for use (ifu) cautions the user that balloon degradation and rupture may result from exposure to adverse environmental conditions, excessive handling, or deposits within the vessel.This report is being filed as a result of a re-review of applied medical complaints received between june 1, 2014 and may 31, 2016. this retrospective review was associated with a quality management system (qms) compliance action plan developed and presented to fda to address an april 10, 2015 warning letter.Applied medical has revised its mdr reporting criteria to be more conservative and has improved complaint handling and mdr reporting processes.The reviews ensured that recent reportable events were appropriately identified and reported to the designated regulatory authority(ies).This report, which represents the initial and final reports combined, is being submitted based on the findings of that retrospective review.In accordance to 21 cfr 803.56, if additional information is obtained which was not known or was not available when this report was submitted, then a supplemental report will be submitted to the fda.(b)(4).
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Procedure performed unknown -"from (b)(6), we continue to receive the complaint, in the text progress, the balloon broken, and not fill in the suggest volume, and some in the surgery progress, not arrive the lision the balloon already broken." patient status - "fine.".
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