Intralumenal graft
First Claim
1. An intralumenal support for insertion into a damage section of a vessel, comprising:
- (a) a graft element formed of a rolled, generally rectangular section of a resilient material suitable for long term residence inside the vessel and expandable substantially uniformly over its entire length from a relaxed, small diameter to one or more larger diameters;
(b) retaining means on said graft element;
(c) a first, generally longitudinal edge of said graft element and;
(d) a second, generally longitudinal edge of said graft element which, when said graft element is at its relaxed diameter, is inside said retaining means and said first edge, wherein(e) upon expansion of said graft element from said relaxed, small diameter to one or more larger diameter, said first edge is retained by said retaining means which thereby prevents said graft element from returning to the smaller diameter.
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Accused Products
Abstract
An intralumenal graft for the repair of damaged or weakened sections of the vascular system. The graft consists of a semi-rigid, resilient tube made of a material suitable for long-term residence inside a vessel. The tube has a relaxed, smaller diameter and is expandable to a larger diameter which is maintained by a retaining ledge or teeth on the inside of the graft. Repair of a vessel is attained by insertion of the graft in its relaxed condition into the vessel at a site which may be remote from the damaged section. The graft is positioned and expanded to its larger diameter by a balloon catheter. Once expanded, the graft is retained in position by friction with the inner wall of the vessel.
797 Citations
9 Claims
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1. An intralumenal support for insertion into a damage section of a vessel, comprising:
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(a) a graft element formed of a rolled, generally rectangular section of a resilient material suitable for long term residence inside the vessel and expandable substantially uniformly over its entire length from a relaxed, small diameter to one or more larger diameters; (b) retaining means on said graft element; (c) a first, generally longitudinal edge of said graft element and; (d) a second, generally longitudinal edge of said graft element which, when said graft element is at its relaxed diameter, is inside said retaining means and said first edge, wherein (e) upon expansion of said graft element from said relaxed, small diameter to one or more larger diameter, said first edge is retained by said retaining means which thereby prevents said graft element from returning to the smaller diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification