Stent Member

• US 20100114294A1
• Filed: 11/06/2009
• Published: 05/06/2010
• Est. Priority Date: 11/06/2008
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated), William Cook Europe ApS (Cook Group Incorporated)
• Inventors: Jensen, Kim Moegelvang, Rasmussen, Erik
• Granted Patent: US 8,092,516 B2
• Time in Patent Office: Days
• US Class Current: 623/1.150
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

A rotationally-symmetric stent graft for deploying in a curved vessel has identical spaced stents along its length, with the stents being further apart in the region of the greatest curvature. The ends of the stents are parallel to each other and to the ends of the graft. The inter-stent spacing may vary along the entire length of the graft or only adjacent one end.

Claims

1. A stent member having a longitudinal extent and comprising a plurality of spaced and mutually-parallel stents, the ends of all the stents being perpendicular to the longitudinal extent of the stent member and the spacing between mutually-adjacent stents increasing monotonically in a direction from one end of the stent, graft to the other.

2. A stent member according to claim 1 and which is substantially rotationally symmetric.

3. A stent member according to claim 1 or 2 wherein the stents are substantially identical.

4. A stent member according to any of claims 1 to 3, wherein the spacing between mutually-adjacent stents is substantially uniform adjacent one end of the stent member and increases monotonically from a central region of the stent member to the other end.

5. A stent member according to any preceding claim wherein the increase in the spacing between mutually-adjacent stents itself increases in regular manner.

6. A stent member according to any preceding claim in the form of a stent graft with graft material connecting the stents.