(b)(4).Event evaluation: a review of complaint history, device history record, documentation, instructions for use (ifu), manufacturing instructions (mi), quality control and a visual inspection of the returned device was conducted during the investigation.The visual examination noted the catheter has been cut approximately 57 cm from the distal end and is still attached to the device.The proximal part of the catheter with the y-fitting, approx.18 cm, is placed separately and is kinked approx.In the middle.It was also noted that there is a kink at the handle and a soft bend in the loop end.The loop was found to be intact.No evidence to suggest product was not manufactured to specifications.Per the instructions for use (ifu), it is stated: warning: excessive force should not be used to retrieve the filter.Based on the information provided and the results of the investigation, the root cause for the complaint cannot be determined.We will continue to monitor for similar events.
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