Multilayer stents having enhanced flexibility and hoop strength
First Claim
Patent Images
1. A multilayer stent, said stent comprising:
- at least two layers having a combined wall thickness W, wherein said multilayer stent is capable of going from a first compressed state to a second expanded state and exhibits enhanced flexibility in said first compressed state and enhanced hoop strength in said second expanded state as compared to a single layer stent of wall thickness W.
1 Assignment
0 Petitions
Accused Products
Abstract
Multilayer stents, as well as methods for their use and kits comprising the same, are provided. The subject multilayer stents include at least two distinct layers or structures concentrically arranged in a manner sufficient to provide a multilayer stent that exhibits enhanced flexibility in a compressed state and enhanced hoop strength in an expanded state, as compared to a single layer stent of the same thickness. The subject multilayer stents find use in a variety of different applications, including vascular applications in which the stents are implanted into the vascular system of a patient.
-
Citations
20 Claims
-
1. A multilayer stent, said stent comprising:
at least two layers having a combined wall thickness W, wherein said multilayer stent is capable of going from a first compressed state to a second expanded state and exhibits enhanced flexibility in said first compressed state and enhanced hoop strength in said second expanded state as compared to a single layer stent of wall thickness W. - View Dependent Claims (2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20)
-
8. A dual layer stent comprising:
-
a first tubular structure of wall thickness X; and
a second tubular structure of wall thickness Y;
wherein said first and second tubular structures are concentrically arranged so as to produce a dual layer stent capable of going from a first compressed state to a second expanded state, wherein said dual layer stent exhibits enhanced flexibility in said first compressed state and enhanced hoop strength in said second expanded state as compared to a single layer stent of wall thickness W, wherein X+Y=W. - View Dependent Claims (9, 10, 11)
-
-
12. A dual layer stent comprising:
first and second concentric tubular structures having the same the configuration and of identical wall thickness X ranging from about 0.002″
to 0.02″
, wherein said concentric tubular structures are arranged so as to produce a dual layer stent capable of going from a first compressed state to a second expanded state, wherein said dual layer stent exhibits enhanced flexibility in said first compressed state and enhanced hoop strength in said second expanded state as compared to a single layer stent of wall thickness 2X.- View Dependent Claims (13, 14, 15)
Specification