Self-expanding intraluminal composite prosthesis
First Claim
1. A self-expanding intraluminal composite prosthesis, comprising:
- an elongated hollow tubular shaped member having a body portion, the body portion being formed by at least one layer of a composite material, the composite material being comprised of a plurality of strands of a reinforcing fiber and a plurality of strands of a sealing fiber, wherein the fibers are interwoven in a biaxially braided design thereby forming the composite material that is capable of isotropic deformation along its longitudinal axis, the hollow tubular shaped member having an expanded diameter, a radially contracted diameter, and an operable diameter which is intermediate the expanded and radially contracted diameters, the tubular shaped member being radially compressible along its longitudinal axis between the expanded and contracted diameters to permit intraluminal delivery of the tubular shaped member through a body passage to a predetermined delivery site wherein the tubular shaped member can self-expand within the body passage to its operable diameter.
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Accused Products
Abstract
This invention relates to a self-expanding intraluminal composite prosthesis comprised of a rigid reinforcing component and sealing component. The prosthesis may be fabricated as either a straight or bifurcated tubular structure and is applicable to the treatment of any bodily passage including, but not limited to, vascular applications, e.g., aneurysms, arteriovenous fistulas, as well as stenotic regions of the peripheral circulation which have been percutaneously dilated but are at high risk for restenosis. The major attributes of this prosthesis can include the use of a unique multilayered biaxial braid which thereby creates a homogeneously blended composite with isotropic deformation and expansion characteristics and an associated high contraction ratio. The use of multiple layers allows for the fabrication of a device of varied porosity while retaining adequate tensile or mechanical wall strength.
468 Citations
22 Claims
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1. A self-expanding intraluminal composite prosthesis, comprising:
- an elongated hollow tubular shaped member having a body portion, the body portion being formed by at least one layer of a composite material, the composite material being comprised of a plurality of strands of a reinforcing fiber and a plurality of strands of a sealing fiber, wherein the fibers are interwoven in a biaxially braided design thereby forming the composite material that is capable of isotropic deformation along its longitudinal axis, the hollow tubular shaped member having an expanded diameter, a radially contracted diameter, and an operable diameter which is intermediate the expanded and radially contracted diameters, the tubular shaped member being radially compressible along its longitudinal axis between the expanded and contracted diameters to permit intraluminal delivery of the tubular shaped member through a body passage to a predetermined delivery site wherein the tubular shaped member can self-expand within the body passage to its operable diameter.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
Specification