Table 2.

Commonly used inferior vena cava (IVC) filters in the United States.

FILTER	COMPANY	FEATURES
Greenfield filters	Boston Scientific	Long-term patency, low risk of thrombosis, 12F delivery system
Bard G2 filter	Bard Peripheral Vascular, Inc.	High technical success, longer indwelling time, but higher rates of fracture and migration
Cook Gunther Tulip	Cook Medical	One of the first IVC filters approved by the U.S. Food and Drug Administration for retrieval
Cook Celect	Cook Medical	Newer version of Cook Gunther Tulip, designed to reduce tilt and fluoroscopy time
OptEase Filter	Cordis	Unique hexagonal design and caudal hook that allows for retrieval via femoral approach
Argon Option Filter	Argon Medical Devices	Smallest on the market with a 5F delivery system