Lattice

摘要

An endovascular prosthesis comprising: a generally tubular lattice comprising at least two circumferential segments that are oriented at an angle of between about 45 degrees and about 90 degrees with respect to the longitudinal axis of the generally tubular lattice. The generally tubular lattice is adapted to expand radially into an enlarged first diametrical dimension and at least one circumferential segment of the lattice being resistant to further expansion. The generally tubular lattice can be adjusted to a further enlarged second diametrical dimension when distensive force is applied thereto and the circumferential segment resistant to further expansion is plastically deformed or broken. The lattice is made from a composite material including a least one expanded fluoropolymer membrane and an elastomer, wherein said expanded fluoropolymer membrane includes serpentine fibrils. 7218507_1 (GHMatters) P96909.AU.2