During a filter retrieval procedure, the loop of the gunther tulip vena cava filter retrieval snare broke when trying to remove the filter.Another device was used to complete the procedure.The patient remained unharmed, no fragments were within the patient.No additional details have been received.
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A review of the following: review of complaint history, review of instructions for use (ifu), review of specifications, visual inspection.Only the retrieval hook portion of the device was returned for evaluation.Visual inspection noted the loop to be fractured in the middle of its "nose".The wires had a slightly unraveled appearance with no indication that the fractured surfaces experienced inclusion of any of the wires.There is no evidence to suggest the product was not made to specifications.Per the ifu: excessive force should not be used to retrieve the filter.Based on the information provided and results of the investigation it is feasible that the device was exposed to high forces during manipulation and attempts to retrieve the filter resulting in fracture of the loop wires; however, a definitive root cause to the reported event could not conclusively be determined.Per the risk assessment no further action is required.We will continue to monitor for similar complaints.
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