Stent with collagen
First Claim
1. In combination, a vascular prostheses comprised of an expandable support framework, the expandable support framework comprising a stent, which has an expanded state having a first diameter and a compressed state having a second diameter, the second diameter being smaller the first diameter, and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, and a covering sleeve of a collagen material, the support framework and the covering sleeve being substantially the same length and substantially overlapping, and wherein the sleeve of collagen material is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
4 Assignments
0 Petitions
Accused Products
Abstract
Collagen applied to a vascular stem for increasing the biocompatability of the stent on implantation find method of treatment.
909 Citations
37 Claims
- 1. In combination, a vascular prostheses comprised of an expandable support framework, the expandable support framework comprising a stent, which has an expanded state having a first diameter and a compressed state having a second diameter, the second diameter being smaller the first diameter, and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, and a covering sleeve of a collagen material, the support framework and the covering sleeve being substantially the same length and substantially overlapping, and wherein the sleeve of collagen material is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
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16. In combination, a vascular expandable stent and a layer of collagen material in the form of a sleeve overlying the stent, the layer of collagen material being substantially the same length and substantially overlapping the stent so that when the combination is inserted within a vascular lumen, the layer of collagen material is positioned between the stent and the vascular wall of the lumen, and wherein the sleeve of collagen material is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
- 17. In combination, a vascular prostheses comprised of a generally cylindrical expandable support stent, which has an expanded state having a first diameter and a compressed state having a second diameter, the second diameter being smaller than the first diameter, and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, and an inner luminal liner comprising collagen material, wherein the collagen liner is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
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32. In combination, a vascular prosthesis comprised of an expandable stent, which has an expanded state having a first diameter and a compressed state having a second diameter, the second diameter being smaller than the first diameter, and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, and inner and outer layer of SIS collagen material positioned on the stent, wherein at least one of the layers of collagen is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
- 33. In combination, a vascular prosthesis comprised of an expandable stent, which is expandable from a first cylindrical position to a second cylindrical position and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, a collagen coating on the stent and a collagen sleeve on the outside of the stent, wherein the sleeve of collagen is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
- 35. An expandable stent, which is expandable from a first cylindrical position to a second cylindrical position and is capable of being positioned at a targeted position within a lumen transluminally when the stent is in its compressed state, comprised of a generally cylindrical body coated with a collagen material and carrying an overlying sleeve of collagen material, wherein the sleeve of collagen material is in sheet form and is oriented with respect to the longitudinal dimension of the stent such that the stretch properties of the collagen are on a bias with respect thereto.
Specification