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| Nonthrombogenic, biocompatible, infinite implant life |
| High filter efficiency (large and small emboli) with no resistance to flow |
| Secure fixation within the IVC with no migration or tilting |
| Ease of percutaneous insertion |
| Small delivery system |
| Easy to use, controlled release mechanism |
| Potentially amenable to repositioning |
| Magnetic resonance imaging compatible |
| Low cost |
| Low access site thrombosis |
| Ease and efficacy of retrievability |
