The device was not returned for evaluation.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a query of the complaint handling database for the reported lot revealed no other complaints reported from this lot.Based on the information provided, a definitive cause for the difficulty retrieving the filter resulting in unexpected medical intervention could not be determined.It may be possible that the distal end of the retrieval catheter became damaged, or a full embolic load prevented the filter from being able to be captured in the retrieval catheter; however, without having the product to examine, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported that the procedure was to treat a lesion in the carotid artery.The large emboshield nav 6 embolic protection system (eps) was advance to it's parking zone and deployed without issue.A stent was implanted.The retrieval catheter for the eps filter was advanced to retrieve the filter; however, the retrieval catheter was unable to capture the filter.Therefore, the physician pulled the filter through the implanted stent and was able to capture the filter into a multi purpose 6fr catheter and remove the filter from the patient.There was no adverse patient sequela and no clinically significant delay reported in the procedure.No additional information was provided.
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