Abstract: An aspiration system includes a plurality of catheters located at least partially within the lumen of an outer sheath. The outer sheath and the catheters are configured to slide relative to each other between a first state in which the distal ends of the catheters are located within the lumen of the outer sheath, and a second state in which the distal end and an end length section of each catheter is extended through the distal end of the outer sheath and outside of the lumen of the outer sheath. The end length section of each catheter is configured to spring or flare outward relative to the first state, when the outer sheath and the plurality of catheters are in the second state. The distal end of the outer sheath may be placed in an inferior vena cava or iliac vein in a transplant kidney patient, adjacent at least one renal vein, with the outer sheath and the plurality of catheters in the first state.

Abstract: An endoprosthesis deployment system includes an axial catheter, an outer sheath extending parallel to the axial catheter, and an inner sheath positioned transversely between the axial catheter and outer sheath, the inner sheath including first and second inner sheath sections extending along the axial catheter, each of said first and said second inner sheath sections mounted for axial movement relative to the other inner sheath section.

Abstract: An endoprosthesis deployment system includes an axial catheter, an outer sheath extending parallel to the axial catheter, and an inner sheath positioned transversely between the axial catheter and outer sheath, the inner sheath including first and second inner sheath sections extending along the axial catheter, each of said first and said second inner sheath sections mounted for axial movement relative to the other inner sheath section.