Apparatus for stenting with enhanced protection against embolism, restenosis and thrombus formation

摘要

The invention relates to an apparatus for stenting comprising: a stent having proximal and distal ends, and a lumen extending therebetween, the stent having a tubular body with a wall having a web structure configured for expansion from a collapsed delivery configuration to an expanded deployed configuration, the web structure comprising a plurality of interconnected, neighboring web patterns, each web pattern having a plurality of adjoining webs, each adjoining web comprising a central section interposed between first and second lateral sections, wherein the central section is substantially parallel to a longitudinal axis of the stent when in the collapsed delivery configuration, each of the first lateral sections joins the central section at a first angle, each of the second lateral sections joins the central section at a second angle, and adjacent ones of the neighboring web patterns have alternating concavity; and a biocompatible material layer attached to at least a portion of the stent between the proximal and distal ends, wherein the biocompatible material comprises a porous woven, knitted or braided material.