Patent ID: 7811393
Filing Date: 2010-10-12
Classification: A61B,A61C,A61F,A61L,C22F

Abstract:
1. A self-expanding stent comprising a frame formed from nitinol exhibiting superelastic behavior at body temperature, the frame being configured to self- expand from a constrained delivery profile to an expanded operative profile, wherein the frame is pre-strained in a controlled manner by the application of a pre-straining bending force to an extent that selectively induces at least about 0.40% non-recoverable tensile strain at or near only a surface of at least one selected location on the frame during circumferential compaction of the frame to a smaller size, wherein following release of the pre-straining force, the frame returns to, or near to, its geometry prior to the application of the pre-straining force.