| abstract |
A prosthesis ( 10 ) having a variable size or stretchable fenestration ( 14 ) in the graft material ( 37 ) of a biocompatible tubular graft ( 11 ). An expandable frame ( 16 ) is disposed about the fenestration, and a portion ( 17 ) of the graft material about the fenestration is folded back over the frame to cover the frame. Additional grafts or prosthesis of varying size can be inserted through the frame and fenestration with the stretched frame and folded portion compressing on the inserted graft forming a seal therewith. |