Manufacturers ref# (b)(4).Summary of investigational findings: the filter came off the deployment system prior to the physician pushing any delivery buttons.The filter was retrieved with a retrieval set and another filter set, from the same lot, was used to complete the procedure.No adverse effect on the patient was reported due to this occurrence.No device failure analysis was conducted due to no product return and no imaging available.Cook was unable to conduct a review of the device history record, as the lot number of the complaint device was not provided for the investigation.Furthermore, cook was unable to review the device master record, instruction for use and device history file, as the filter type is unknown.It is unknown if the filter was a celect, celect-pt or a tulip filter and if it was a classic or navalign set.Due to insufficient information provided for the investigation, the exact cause for the reported event cannot be established.No evidence suggest that the product was not manufactured to current specifications.Cook medical will continue to monitor for similar events.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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