BIOCOMPATIBLE ENDOPROSTHESES

摘要

The vascular endoprosthesis comprises an array of cylindrical elements (4) arranged internally or externally and secured (8) to a continuous tubular element (7). This composite device is described as an arrayed stent graft. T he cylindrical elements of the arrayed stent graft are constructed of metal or other suitable material, and the tubular element may be either knitted or woven textile, a thin walled polymer tube, a thin walled elastomeric tube or a composite of two or more of these or other compounds. All external surfaces of the arrayed stent graft are composed of biocompatible material consisting of a polymer having both non-thrombogenic and anti-thrombogenic properties on the same polymer backbone or, if required, only non-thrombogenic or only anti- thrombogenic properties as described in WO 97/41164.