Vascular graft fabric
First Claim
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1. A vascular graft fabric for repairing or augmenting a weakened vascular wall, comprising:
- a biologically compatible and implantable weave of synthetic yarns having a greater number of picks per inch than ends per inch and having a double wall thickness of less than 0.02 inches, wherein said weave is formable into a tubular configuration having an outer diameter and a lumen extending therethrough which exhibits limited radial compliance, greater than 5 percent but that does not exceed 35 percent of the outer diameter when a fluid at a physiologic pressure of 120-200 mm Hg is flowing through the lumen and wherein the tubularly configured weave does not exhibit radial dilation, more than an additional 5% beyond the limited radial compliance, or appreciable longitudinal expansion after flow of fluid through the lumen at a physiologic pressure of 120-200 mm Hg for approximately 72 hours.
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Accused Products
Abstract
A woven vascular graft fabric that permits limited radial compliance but resists long term dilation and longitudinal extension. The thin walled graft has a double wall thickness of less than 0.02 inches and a greater number of picks per inch than ends per inch.
86 Citations
14 Claims
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1. A vascular graft fabric for repairing or augmenting a weakened vascular wall, comprising:
a biologically compatible and implantable weave of synthetic yarns having a greater number of picks per inch than ends per inch and having a double wall thickness of less than 0.02 inches, wherein said weave is formable into a tubular configuration having an outer diameter and a lumen extending therethrough which exhibits limited radial compliance, greater than 5 percent but that does not exceed 35 percent of the outer diameter when a fluid at a physiologic pressure of 120-200 mm Hg is flowing through the lumen and wherein the tubularly configured weave does not exhibit radial dilation, more than an additional 5% beyond the limited radial compliance, or appreciable longitudinal expansion after flow of fluid through the lumen at a physiologic pressure of 120-200 mm Hg for approximately 72 hours. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification