Intravascular stent
First Claim
Patent Images
1. A stent, comprising:
- a tubular body having a first end ring and a second end ring and a plurality of body rings therebetween;
the end rings and the body rings being positioned in a complete out-of-phase relationship;
first links connecting the end rings to the body rings and second links connecting adjacent body rings, wherein only two first links connect the first end ring to an adjacent body ring, only two first links connect the second end ring to an adjacent body ring and only two second links connect adjacent body rings together;
the first links having a first length and the second links having a second length, the first length being greater than the second length, wherein the first links and second links are linear links; and
the first end ring and the second end ring each having a first length that is shorter than a second length of the body rings.
0 Assignments
0 Petitions
Accused Products
Abstract
An expandable stent for implantation in a body lumen, such as an artery, is disclosed. The stent consists of a plurality of radially expandable cylindrical rings generally aligned on a common longitudinal stent axis and interconnected by one or more interconnecting links placed so that the stent is flexible in the longitudinal direction. The link pattern is optimized to reduce strain on the links and enhance longitudinal flexibility and security of the stent. The stent includes a distal end ring and a proximal end ring that have a length that is shorter than the length of the body rings.
-
Citations
23 Claims
-
1. A stent, comprising:
-
a tubular body having a first end ring and a second end ring and a plurality of body rings therebetween; the end rings and the body rings being positioned in a complete out-of-phase relationship; first links connecting the end rings to the body rings and second links connecting adjacent body rings, wherein only two first links connect the first end ring to an adjacent body ring, only two first links connect the second end ring to an adjacent body ring and only two second links connect adjacent body rings together; the first links having a first length and the second links having a second length, the first length being greater than the second length, wherein the first links and second links are linear links; and the first end ring and the second end ring each having a first length that is shorter than a second length of the body rings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A stent, comprising:
-
a tubular body having a first end ring and a second end ring and a plurality of body rings therebetween, the tubular body having a delivery diameter and an expanded implanted diameter; the end rings and the body rings being positioned in a complete out-of-phase relationship; first links connecting the end rings to the body rings and second links connecting adjacent body rings; each of the first links having a first length and each of the second links having a second length, the first length being greater than the second length, the first length being the same when the tubular body is either in its delivery diameter or expanded implanted diameter and the second length being the same when the tubular body is either in its delivery diameter or expanded implanted diameter, wherein the first links and second links are linear links; and the first end ring and the second end ring each having a first length that is shorter than a second length of the body rings. - View Dependent Claims (20, 21, 22)
-
-
23. A stent, comprising:
-
a tubular body having a first end ring and a second end ring and a plurality of body rings therebetween, the tubular body having a delivery diameter and an expanded implanted diameter; the end rings and the body rings being positioned in a complete out-of-phase relationship; first linear links connecting the end rings to the body rings and second linear links connecting adjacent body rings, wherein only two first linear links connect the first end ring to an adjacent body ring, only two first linear links connect the second end ring to an adjacent body ring and only two second linear links connect adjacent body rings together; each of the first linear links having a first length and each of the second links having a second length, the first length being greater than the second length; and each of first end ring and second end ring having a first length that is shorter than a second length of the body rings, wherein each of the first and second end rings have a plurality of crests and each of the body rings have a plurality of crests, the first and second linear links extending from a crest on one ring to an axially adjacent crest, the only two first linear links connecting the first end ring to an adjacent body ring being spaced apart by only two crests in one circumferential direction and the only two second linear links connecting each body ring to an adjacent body ring being spaced apart by only one crest in one circumferential direction.
-
Specification