Description of event according to initial reporter: the white plastic hub that houses the safety and releases mechanism was not aligned properly.They stated it was a very small misalignment.They realigned it and continued with the procedure.When trying to deploy, the filter would not disengage from the release mechanism.They then tried to re-sheath it and couldn¿t cover the hook on the filter.On the way out the filter got snagged and released in the femoral vein.The filter was off of the device but the feet were not deployed.The filter then had to be snared from a jugular vein approach.Patient outcome: no harm came to the patient.
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