Batch history review: we have checked the manufacturing file of the involved batch which complies with our specifications and does not present any discrepancy.No other similar complaint has been reported to us on this batch of vena cava filters released in october 2004.Investigation results we did not receive the x-ray pictures or detailed information for investigation.No information is given to explain why the filter was retrieve whereas the venatech lp filter is a permanent filter and is not retrievable.Conclusion: without concrete element, no thorough investigation can be performed.A causality link between the device and the reported event cannot be established.No conclusion can be drawn about the event root cause.If new elements become available in the future, we will update the case.
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