The study is about testing the **Edwards Cardioband FIT Valve Repair System**, which is designed to help people with **tricuspid regurgitation** (TR). This is when the heart's tricuspid valve doesn't close tightly, allowing blood to flow backward. The study will see if this new system is safe and works well. It's a **multi-center, prospective, single-arm, and non-randomized study**, meaning it happens at multiple places, is planned ahead, involves only one group, and everyone gets the same treatment. **Key Points:** - Participants need to visit the study center for all specified evaluations and tests. - Participants must have moderate or greater TR and have had heart problems despite other treatments. - Some people can't join, like those with certain heart conditions or women who are pregnant or planning to become pregnant. People who join will need to provide written informed consent and be ready for various evaluations. They should not be part of any other similar medical study. Before joining, make sure to discuss any medical conditions or treatments you have with the study team to ensure eligibility.