Soft-tissue tubular prostheses with seamed transitions
First Claim
Patent Images
1. A woven implantable tubular prosthesis, comprising:
- a plurality of warp yarns and fill yarns;
a first tubular extent having a first diameter;
a second tubular extent having a second diameter different from the first diameter;
a transition tubular extent between the first and second tubular extents, the transition tubular extent having a graduated diameter;
a tapered edge along the transition tubular extent formed by a weaving pattern having disengagement of a predetermined number of warp yarns forming a graduated change in the number of warp yarns; and
a seam woven along the tapered edge, wherein the seam provides a substantially fluid-tight transition between the first tubular extent and the second tubular extent.
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Accused Products
Abstract
Single tubular woven or bifurcated prostheses are disclosed having varying diameters and tapered transitions. The prostheses comprise a seam along the tapered edges, thereby providing a substantially fluid-tight transition between sections or extents of the prostheses. The seam may be located at an edge where fabric of the prosthesis tapers from one diameter to a different diameter and/or at a point where the prosthesis splits such as a bifurcation. The seamed crotch may be used for tapered and non-tapered bifurcated grafts. The seam may be woven directly on a weaving loom or joined together after weaving is completed.
58 Citations
18 Claims
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1. A woven implantable tubular prosthesis, comprising:
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a plurality of warp yarns and fill yarns; a first tubular extent having a first diameter; a second tubular extent having a second diameter different from the first diameter; a transition tubular extent between the first and second tubular extents, the transition tubular extent having a graduated diameter; a tapered edge along the transition tubular extent formed by a weaving pattern having disengagement of a predetermined number of warp yarns forming a graduated change in the number of warp yarns; and a seam woven along the tapered edge, wherein the seam provides a substantially fluid-tight transition between the first tubular extent and the second tubular extent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A woven implantable tubular prosthesis, comprising:
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a plurality of warp yarns and fill yarns; a first tubular extent having a first diameter; a second tubular extent having a second diameter different from the first diameter; a transition tubular extent between the first and second tubular extents, the transition tubular extent having a graduated diameter; a tapered edge along the transition tubular extent formed by a weaving pattern having disengagement of a predetermined number of warp yarns forming a graduated change in the number of warp yarns; and a seam woven along the tapered edge, wherein the seam provides a substantially fluid-tight transition between the first tubular extent and the second tubular extent, and wherein the ratio of disengaged warp yarns to fill yarns causes the tapered edge to have an angle greater than 45 degrees. - View Dependent Claims (15)
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16. A woven implantable tubular prosthesis, comprising:
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a plurality of warp yarns and fill yarns; a first tubular extent having a first diameter; two secondary tubular extents, each having a diameter different than the first tubular extent first diameter; a transition tubular extent between the first tubular extent and the two secondary tubular extents, the transition tubular extent having a tapered edge and a graduated diameter; the two secondary tubular extents bifurcating from the transition tubular extent, the tapered edge forming a crotch in the transition tubular extent between the two secondary tubular extents; the transition tubular extent graduated diameter comprising a weaving pattern that disengages a predetermined number of warp yarns in the crotch; and a seam woven along the crotch, wherein the seam provides a substantially fluid-tight closure in the transition tubular extent. - View Dependent Claims (17, 18)
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Specification