Material for flexible connectors in high strength, high flexibility, controlled recoil stent
First Claim
1. An intraluminal scaffold comprising at least one flexible connector element having a luminal surface and an abluminal surface, the flexible connector element having a predetermined wall thickness, wherein the wall thickness is defined by the radial distance between the luminal surface and the abluminal surface, and a predetermined feature width, wherein an area bounded by the wall thickness and the feature width comprises a plurality of zones undergoing at least one of tensile, compressive or substantially zero stress change due to external loading, the flexible connector element being fabricated from a metallic material processed to have a microstructure with a granularity of about 32 microns or less and at least one internal grain boundary within the bounded area.
1 Assignment
0 Petitions
Accused Products
Abstract
A biocompatible material may be configured into any number of implantable medical devices including intraluminal stents. The biocompatible material may comprise metallic and non-metallic materials. These materials may be designed with a microstructure that facilitates or enables the design of devices with a wide range of geometries adaptable to various loading conditions.
15 Citations
30 Claims
- 1. An intraluminal scaffold comprising at least one flexible connector element having a luminal surface and an abluminal surface, the flexible connector element having a predetermined wall thickness, wherein the wall thickness is defined by the radial distance between the luminal surface and the abluminal surface, and a predetermined feature width, wherein an area bounded by the wall thickness and the feature width comprises a plurality of zones undergoing at least one of tensile, compressive or substantially zero stress change due to external loading, the flexible connector element being fabricated from a metallic material processed to have a microstructure with a granularity of about 32 microns or less and at least one internal grain boundary within the bounded area.
- 10. An intraluminal scaffold comprising at least one flexible connector element having a luminal surface and an abluminal surface, the flexible connector element having a predetermined wall thickness, wherein the wall thickness is defined by the radial distance between the luminal surface and the abluminal surface, and a predetermined feature width, wherein an area bounded by the wall thickness and the feature width comprises a plurality of zones undergoing at least one of tensile, compressive or substantially zero stress change due to external loading, the flexible connector element being fabricated from a material processed to have a microstructure with structural domains having a size of about 50 microns or less and at least one internal structural boundary within the bounded area.
Specification