METHOD OF ASPIRATING A THROMBUS ACCUMULATION BETWEEN A VENEOUS VALVE AND A VEIN WALL

摘要

A method of removing thrombus accumulation from a space between a body valve and a wall of a body vessel is described herein. The method can include an occlusion catheter with a first occlusion member positioned on the second side of the vessel. An aspiration catheter is introduced through the vessel and the valve. The aspiration catheter can have a nozzle with a bent configuration to position the end opening proximate to the thrombus accumulation.

主权项

1. A method for removing a thrombus accumulation from a space between a venous valve and a wall of a vein, the valve comprising a leaflet opening from a first side of the vein to a second side of the vein, the thrombus accumulation being disposed along the second side of the vein, the method comprising:
introducing an occlusion catheter within the vein; positioning a first occlusion member of the occlusion catheter on the second side of the vein; expanding the first occlusion member of the occlusion catheter to an expanded configuration to engage the wall of the vein; introducing an aspiration catheter within the vein and through said valve from the first side to the second side of the vein, the aspiration catheter comprising an aspiration lumen and a nozzle with a nozzle lumen and an end opening; positioning the end opening of the nozzle on the second side of the vein proximate the thrombus accumulation, the nozzle comprising a bent configuration with the nozzle lumen being acutely angled relative to said aspiration lumen and said end opening facing away from a distal direction of said aspiration catheter; and aspirating the thrombus accumulation through the end opening, nozzle lumen and aspiration lumen of the aspiration catheter to remove the thrombus accumulation from the space between the valve and the wall of the vein.