Vena cava filter, temporary/permanent

Vena cava filters are small, implantable devices placed inside the inferior vena cava to trap blood clots before they travel to the lungs, reducing the risk of pulmonary embolism. Clinically, they are used as a preventive measure for patients at high risk of deep vein thrombosis (DVT) or those who cannot take blood thinners, offering a mechanical alternative to medication.

These devices are typically single-use and regulated as medical implants, with approvals based on safety, effectiveness, and retrieval capabilities (if temporary). They are supplied sterile and require surgical or percutaneous insertion, often classified under strict vascular device regulations depending on jurisdiction.