Manufacturing review: the device history records have been reviewed with special attention to the raw materials, subassemblies, manufacturing process, and quality control testing.This lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.Investigation summary: the device was not returned for evaluation.The medical records included images.The image review was documented in the medical records.Medical records were provided and reviewed.Approximately three years and one month of post deployment, a computed tomography of abdomen and pelvis was performed for filter evaluation.The study showed that filter was positioned below the level of renal veins.The filter was tilted to the right with the cone lying on the wall of the inferior vena cava possibly embedded within it.The legs of the filter have penetrated through the wall of the inferior vena cava into the pericaval/mesenteric fat.Therefore, the investigation is confirmed for perforation of inferior vena cava (ivc) and filter tilt.Based on the available information, the definitive root cause is unknown.Labeling review: a review of product labeling documents (e.G.Procedural instructions, indications, warnings, precautions, cautions, possible complications, contraindications, and unit label) showed that the product labeling is adequate.(expiry date: 02/2017).
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It was reported through the litigation process that a vena cava filter was placed in a patient after being diagnosed with deep vein thrombosis.At some time post filter deployment, it was alleged that the filter tilted, struts perforated into organs and the patient reportedly experienced abdominal pain.The device has not been removed and there were no reported attempts made to retrieve the filter.The current status of the patient is unknown.
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