LUMEN-EXPANDING TRIPLEX STRUCTURE STENT AND METHOD OF MANUFACTURING IT

摘要

To provide a method of manufacturing a lumen-expanding triplex structure stent and the lumen-expanding triplex structure stent manufactured thereby.SOLUTION: A lumen-expanding triplex structure stent comprises: an inner cylindrical net having a mesh shape which is formed by repeating the following process for crossing each other: a wire of a certain length is spirally wound 3 times along a reference circumferential surface from one end part of the reference circumferential surface to another end part, inwardly folded at a determined angle, and spirally wound 3 times along the reference circumferential surface and whose two ends which are not connected each other is finished with V markers respectively; a cover film member surrounding entire outer peripheral edge except for end parts at both sides; an outer cylindrical net having a cylindrical mesh shape entirely, which is formed by the same method as the inner cylindrical net with a wire which is stretchable, has a flexibility and a certain length on outer peripheral edge of the inner cylindrical net including outer peripheral edge of the cover film member and whose two end parts which are not connected each other are finished with V markers respectively on each of the ends so as not to be cut.SELECTED DRAWING: Figure 1