Patent ID: 9101502
Filing Date: 2015-08-11
Classification: A61F

Abstract:
1. A stent for implantation into a surrounding organ, said stent with a tubular wall formed from a flexible grid structure and progressing around a longitudinal axis, possessing tube ends disposed at opposite axis ends, wherein the wall is comprised of annular wall segments including a terminal annular wall segment, said annular wall segments disposed sequentially along the axis and connected to one another by means of connecting segments, and wherein the annular wall segments comprise wall elements with an elastic structure, characterized in that the wall has, on at least one tube end, a plurality of flexible, anchoring elements said anchoring elements each having two radially curved segments joined at a distal angular pointed tip, and each having a proximal end connected in a single-piece structure directly to an intersection of at least two terminal wall elements and wherein none of the segment ends are directly connected to one another and wherein said anchoring element bridges at least two non-sequential elastic wall elements, said tip, positioned at a larger radial distance from the axis than the terminal wall elements; said anchoring element imparting a pressing force, with said tip, into said surrounding organ, for an anchoring therein, said tip having a radiopaque region, and an annular wall segment in a terminal region of said stent adjacent to said tube end being directly connected to at least one said annular wall segment adjacent thereto at respective intersections of the wall elements in a symmetrical connection without said connecting segments thereby minimizing an expansion of said stent in said terminal region in an axial direction.