Patent ID: 6193747
Filing Date: 2001-02-27
Classification: A61F

Abstract:
An expandable stent comprising:a tubular, flexible body whose wall has a web structure,said web structure including a plurality of adjoining cells which are surrounded by webs of said web structure with at least one spring element being provided per cell;said spring elements being provided with web arcs which are shaped as hairpins and having a vertix and first and second bases, said first and second bases being followed by first and second webs that extends in straight fashion towards respectively neighboring web patterns, said web patterns being arranged with substantially parallel axes;said web patterns being composed of a plurality of adjacently arranged web loops which have each two straight webs with a bent web section;respectively adjacent spring elements defining cells that are differently shaped, with web loops passing into said elements; andone of said cells comprising extended cell portions next to the respective web arc.