It was reported that during an ivc filter retrieval procedure using a gunther tulip vena cava filter retrieval set , they were able to snare the filter but in the process of attempting to remove the filter, the snare wire snapped in half (medwatch# 1820334-2017-00988).A second retrieval kit was used and the hub separated from the outer blue sheath (medwatch# 1820334-2017-00989).They were able to successfully complete the procedure with the second device.There were no reported adverse effects on the patient due to this occurrence.
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Additional information: a review of the complaint history, device history record, manufacturing instructions, quality control, and visual inspection of the returned device was conducted during the investigation.The complete retrieval device was returned.The hub had separated from the blue sheath as reported.An investigation revealed a 6.8mm sheath flaring, which is within specification.A similar test hub was attached to the complaint sheath and no abnormalities were noted when comparing the attachment.There is no evidence to suggest the finished product was not made to specifications.Review of the device history record of the finished product shows no nonconforming events that would contribute to this failure mode.There were no other reported complaints for this lot number.Based on the information provided and the results of our investigation, a definitive root cause could not be determined.Per the risk assessment, no further action is warranted.Monitoring will continue to be performed for similar complaints.
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