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Expandable endovascular stent

  • US 5,928,280 A
  • Filed: 09/10/1996
  • Issued: 07/27/1999
  • Est. Priority Date: 09/11/1995
  • Status: Expired due to Term
First Claim
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1. An expandable endovascular stent comprising a flexible, tubular body (1) with a longitudinal axis, a wall of which is formed by interconnected, closed frame cells (2) arranged with at least two cells adjacent to each other in a circumferential direction, the frame cells (2) having at least two elongated, mutually converging cell sides, the body including filament-shaped frame material that transmits compressive forces in an axial direction of a filament extending continuously from one frame cell directly into an other frame cell following in a longitudinal direction, which stent is expandable from a radially compressed state into an expanded state having a larger diameter, wherein in the expanded state of the stent, the filament-shaped frame material in several of the frame cells (2) forms at least one of a heart-like shape and an arrowhead-like shape with at least two interconnected shorter cell sides (5) positioned opposite to and interconnected with the two mutually converging longer cell sides (3), and wherein the shorter cell sides (5) do not deform radially outward from the longer cell sides (3) upon radial expansion of the stent to its expanded state.

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