Presentation
Radiograph ordered for abdominal pain.
Patient Data
Age: 55 years
Gender: Male
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Info
A Vena Tech inferior vena cava filter and lumbosacral posterior spinal fusion hardware are present.
This is a conical filter with 6 legs, each attached to a flat side rail that lies against the cava wall. These act as vertical stabilizing struts. It is made of Phynox® wire (same alloy as Conichrome®).
http://www.whichmedicaldevice.com/editorial/article/104/a-brief-history-of-inferior-vena-cava-filters-and-analysis-of-current-devices