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(b)(4).During processing of this complaint, attempts were made to obtain complete event, patient and device information.(b)(4).The device was not returned for analysis.A review of the lot history record and complaint history of the reported lot could not be conducted since the lot number was not provided.It should be noted that the armada 35 instructions for use states: inflation in excess of the rated burst pressure (rbp) may cause the balloon to rupture.Investigation determined the reported balloon rupture appears to be related to circumstances of the procedure as the balloon was inflated above rbp, thus resulting in the rupture.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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