VenaTech Convertible Vena Cava Filter U.S. Multi-Center Clinical Trial

Inclusion Criteria:

- The subject is 18 years of age or older

- The subject is at time-limited risk of pulmonary embolism

- The subject requires prevention of pulmonary embolism and placement of a vena cava
filter is indicated

- The subject is willing and able to provide informed consent

- The subject is willing and able to comply with the requirements of the study protocol

- The subject's vena cava diameter is less than or equal to 28mm.

Exclusion Criteria:

- The subject is pregnant, planning on becoming pregnant or unwilling to use birth
control

- The subject is severely disabled and his/her life expectancy appears limited

- The subject already has an implanted vena cava filter

- The subject has contrast allergy

- The subject has a duplicated IVC

- The subject is bacteremic

- The subject has an active malignancy with associated hypercoagulability or mortality

- The subject would be unavailable for follow-up

- Filter implantation is not possible

- There is no location available for placement of the vena cava filter

- The subject is currently participating in another clinical study or has participated
in one within the last 30 days or plans to participate in one during the next 6
months