Vascular prosthesis

Claim 2

A vascular graft comprising a crimped woven texturized yarn fabric in the shape of a tube, said tube having an outer velour surface and a smooth inner surface, said outer velour surface having radial loops formed of fill yarn about warp yarns.

Claim 3

The graft of claim 1 in which the fill yarn is also positioned about warp yarns in a plain pattern, said plain pattern being positioend between adjacent fill yarn forming the loops.

Claim 4

A hollow tubular graft comprising a single outer velour fabric from warp yarns and fill yarn, said warp yarns supporting a plurality of first fill yarn portions, said first fill yarn portions interlaced with the warp yarns in a plain weave pattern and between said first fill yarn portions second fill yarn portions are positioend about warp yarns to only form outer radial loops with the spacing of the loops between being 4 to 8 in number and the adjacent second fill yarn portions woven so they are offset from one another at least one warp yarn so that adjacent loops along the length of the tubular graft are out of alignment.

Claim 5

A hollow tubular graft comprising a single outer velour fabric from warp yarns and fill yarn, said warp yarns supporting a plurality of first fill yarn portions, said first fill yarn portions interlaced with the warp yarns in a plain weave pattern and between said first fill yarn portions second fill yarn portions are positioend about warp yarns to only form outer radial loops with the spacing of the loops between being 4 to 8 in number and the adjacent second fill yarn portions woven so they are offset from one another at least one warp yarn so that adjacent loops along the length of the tubular graft are out of alignment.

Claim 6

The graft according to claim 3 in which each of the loops extend around a portion of the circumference of the tubular graft.

Claim 7

The graft of claim 3 which is crimped.

Claim 8

The graft of claim 3 in wich the yarns are texturized.

Claim 9

The graft of claim 3 in which the yarns are untexturized.

Claim 10

The graft of claim 1 in which the yarns are polyester.

Claim 11

The graft of claim 1 in which the yarns are polyethylene terephthlate.

Claim 12

The method of repairing an artery comprising connecting the graft of claim 1 to an artery.

Claim 13

The method of repairing an artery comprising connecting the graft of claim 3 to an artery.

Claim 14

A vascular tubular graft of a woven synthetic fibers with a velour external surface and a smooth interior surface, said external surface having a plurality of radial loops each loop extending around a portion of the circumference of the graft and each loop formed by fill yarn positioned about warp yarns.

Claim 15

A vascular tubular graft of a woven synthetic fibers with a velour external surface and a smooth interior surface, said external surface having a plurality of radial loops each loop extending around a portion of the circumference of the graft and each loop formed by fill yarn positioned about warp yarns.

Claim 16

The graft of claim 11 in which each loop along the length of the tubular graft is offset and out of alignment with the next adjacent loop.

Claim 17

The graft of claim 1, 3 or 12 which is in a straight or bifurcated form.

Claim 18

The method of claim 10 in which the graft is in straight or bifurcated form.