Coiled sheet stent having helical articulation and methods of us

Details Coiled sheet stent having helical articulation and methods of us Coiled sheet stent having helical articulation and methods of us

1997-03-18

1998-10-20

Shay, Randy C.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Stent structure

623 12, 623195, A61F 206

Patent

active

058240527

ABSTRACT:
An endoprosthesis is provided having at least first and second resilient coiled sheet portions, and an intermediate region comprising a helical articulation. The coiled sheet portions may be of the same or different diameters so as to accommodate a taper in the body lumen, while the helical articulation comprises a mesh portion that provides both flexibility and high radial strength, and which contracts to its delivery profile with relatively few turns. The coiled sheet portions also may be of the same or different lengths, and for very long devices, may be interspersed between a plurality of helical articulation portions. The pitch of the helical articulation may be varied to create a partial telescoping of the helical articulation within one of the first and second coiled sheet portions when in a contracted state. The prosthesis may also be used for treating bifurcated vessels.

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