The purpose of this study is to evaluate the efficacy and safety of SaExten Vena Cava Filter System (SaExten IVCF System) in prevention of pulmonary embolism (PE).~This is a prospective, multicenter, randomized controlled, positive-controlled clinical trial, which will enroll 204 participants in total, with 102 in each group. Paticipants will undergo inverventions with SaExten IVCF System or Denali IVCF, and be followed-up to 12 months if the implantation is permanent, to evaluate the efficacy and safety of SaExten IVCF System in prevention of PE.
The purpose of this study is to evaluate the efficacy and safety of SaExten Vena Cava Filter System (SaExten IVCF System) in prevention of pulmonary embolism (PE).~This is a prospective, multicenter, randomized controlled, positive-controlled clinical trial, which will enroll 204 participants in total. Paticipants will undergo inverventions with SaExten IVCF System or Denali IVCF.