(b)(4).The results of the investigation are inconclusive since the device was not returned for analysis.Our investigation was limited to the review of the device history record, which showed that each manufacturing and inspection operation was performed and indicated complete in accordance with sjm specifications and procedures.Based on the information received, the cause of the reported incident could not be conclusively determined.
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After measurement of the defect, the user elected to implant a 32 mm amplatzer septal occluder (aso) (model: 9-asd-032, s/n: (b)(4)).After placing the aso, it appeared to be too small.The aso was removed and a 34 mm aso was successfully implanted, with oval shape, good placement, and no leaking.One hour post procedure, the 34 mm aso dislodged and embolized in the left ventricle.The aso was surgically removed.Per report, the patient is stable.
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