| abstract |
A controlled stent-graft deployment delivery system ( 10 50 or 900 ) includes a stent-graft ( 30 or 63 ), a retractable primary sheath ( 40 ) containing the stent-graft in a first constrained diameter configuration, an outer tube ( 18 ) within the retractable primary sheath and within the stent-graft, and an inner tube ( 20 ) within the outer tube, where the inner tube and the outer tube both axially move relative to the retractable primary sheath and to each other. The system further includes a cap ( 15 ) coupled to a distal end of the inner tube and configured to retain at least a portion of a proximal area of the stent-graft in a radially compressed configuration. A distal assembly ( 100 ) provides controlled relative axial movement between the outer tube and the inner tube enabling the release of the proximal end ( 65, 67, 68, and 69 ) of the stent-graft from the cap and from the radially compressed configuration. |