Batch history review: batch unknown.Review impossible.Investigation: the explanted filter was not returned for evaluation.However, the description of the incident indicates a wrong placement by the physician without defect malfunction.It is worth noting that the sheath and the pusher of the venatech lp vena cava system are equipped of a radio-opaque marker to allow a precise filter deployment.Conclusion: the filter wrong placement does not seem to be imputable to the device.This is an isolated case.No corrective action is envisaged.
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