Manufacturing review: the device history records have been reviewed and this lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.This is the only complaint reported to date for this lot number and failure mode.Investigation summary: the device was returned for evaluation.A visual inspection found a hole in the catheter shaft, leading to the reported leak.Therefore, the investigation is confirmed for the leak and for a hole in the shaft.Additionally, microscopic foreign fibers were noted to be embedded under the fibers and pebax on the balloon subassembly.Therefore, the investigation is confirmed for foreign material.The fibers required high magnification to view, and the sizes of the measured fibers were noted to be acceptable per the current inspection criteria.The definitive root cause for the identified hole could not be determined based upon available information.Labeling review: the review of the ifu (instructions for use), indications, warnings, precautions, cautions, possible complications, and contraindications showed that the product labeling is adequate.
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