Which filter is the oldest and most widely used for Vena Cava Interruption?

The Greenfield umbrella filter is well-regarded as one of the oldest and most widely used devices for Vena Cava Interruption. Introduced in the 1970s, it was designed to prevent pulmonary embolism by capturing thrombi from the deep veins of the legs and pelvis before they could reach the lungs. Its unique umbrella design allows for wide deployment in the inferior vena cava, effectively trapping clots while allowing blood to flow around them.

This filter's longevity in clinical practice stems from its effectiveness, ease of insertion, and historical importance in the evolution of vena cava filters. Over the years, it has undergone multiple iterations to improve design and safety, but its foundational role in vascular intervention has established it as the go-to option for these procedures.

Other filters, such as the Bird's nest filter, while also used, do not have the same historical significance or widespread adoption as the Greenfield filter. The nitinol filter, while innovative, is typically newer and represents advancements in filter technology rather than a historical reference point. Jones Wire arch is less known and not commonly referenced in the context of vascular interruption, further solidifying the Greenfield filter's position as the standard in this area.