| abstract |
This invention is a coaxial delivery system for the delivery, and endo-vascular assembly of a multi-stage stent graft. Each stage or layer of the stent graft may comprise radially compressible spring portions (9). The system may have a first sheath (11) which comprises a first portion (12) to enclose a stage (2), and a second portion (20) smaller than the first portion (12). The system further has a second sheath (24) configured to enclose the second portion (20) of the first sheath (11), and another stage (4, 3). The multi-stage stent graft may be formed by the stage (2), and the stage (4, 3). |