Helically formed stent/graft assembly
First Claim
1. A method of making a tubular stent/graft assembly comprising the steps of (i) forming a substantially planar strip and wire assembly comprising first and second essentially flat, planar graft strips formable into a graft and essentially flat, planar stent wire formable into a radially adjustable stent, wherein said wire is positioned between said first and second graft strips and also positioned lengthwise along the length of said planar strip and further wherein said graft are formed by extruding, casting or molding polymeric material;
- and (ii) helically winding said substantially planar strip and wire assembly to form said tubular stent/graft assembly.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a support structure/membrane composite device which includes a support structure, such as a radially expandable stent, a porous non-textile polymeric membrane adjacent to said stent and a thermoplastic anchor means attaching said stent to said porous non-textile polymeric membrane. The porous non-textile polymeric membrane is preferably made from expandable fluoropolymer materials. The anchoring means is a thermoplastic material which is dissolvable at the interface between the support structure and membrane by a suitable solvent which wets the membrane surface and deposits the thermoplastic material within the pores of the membrane. Methods of preparing the device are also disclosed.
107 Citations
23 Claims
-
1. A method of making a tubular stent/graft assembly comprising the steps of (i) forming a substantially planar strip and wire assembly comprising first and second essentially flat, planar graft strips formable into a graft and essentially flat, planar stent wire formable into a radially adjustable stent, wherein said wire is positioned between said first and second graft strips and also positioned lengthwise along the length of said planar strip and further wherein said graft are formed by extruding, casting or molding polymeric material;
- and (ii) helically winding said substantially planar strip and wire assembly to form said tubular stent/graft assembly.
- View Dependent Claims (2, 3, 4, 5, 6)
-
7. A method of making a stent/graft assembly comprising:
-
forming a substantially planar graft and stent material assembly comprising first and second essentially flat, planar graft strips and essentially flat, planar stent material, wherein said graft strips are formed by extruding, casting or molding polymeric material, positioning said planar stent material between said first and second planar graft strips; and
winding said substantially planar graft and stent assembly to form said stent/graft assembly. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. A method of making a tubular stent/graft assembly comprising the steps of (i) forming a substantially planar strip and stent assembly comprising first and second essentially flat, planar graft strips formable into a graft and an essentially flat, planar stent formable into a radially adjustable stent, wherein said planar stent is positioned between said first and second planar graft strips and positioned along the length of said planar strips and further wherein said graft strips are formed by extruding, casting or molding polymeric material;
- and (ii) helically winding said substantially planar strip and stent assembly to form said tubular stent/graft assembly.
- View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
Specification