Manufacturing review: a device history record (dhr) review could not be performed as the lot number is unknown.Investigation summary: the device was not returned for evaluation.Medical records were provided and reviewed.Approximately three years post filter deployment, the patient experienced abdominal pain.Subsequent computed tomography (ct) revealed the superior tip of the inferior vena cava filter located approximately 2.4 cm inferior to the confluence of the lowest right renal vein.There was a mild medial tilt of the inferior vena cava filter.Struts of the inferior vena cava filter projected 1 mm beyond the wall of the inferior vena cava.Therefore, the investigation is confirmed for the perforation of the inferior vena cava (ivc), filter tilt and filter migration.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.
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