| 摘要 |
A valve-tensioning implant includes a first venous tissue anchor (30), which is configured to be implanted in a vein selected from the group of veins consisting of: a superior vena cava (110), an inferior vena cava (80), and a coronary sinus (115); exactly two atrial tissue anchors, which consist of second and third atrial tissue anchors (40, 42); and a pulley system (44). The pulley system (44) includes a pulley (50), which is connected to the second atrial tissue anchor (40); and a tether (54), which (a) is connected to the first venous tissue anchor (30) and the third atrial tissue anchor (42), (b) is moveable through the pulley (50), and (c) has a length, measured between the first venous and the third atrial tissue anchors (30, 42), of at least 30 mm. Other embodiments are also described. |
