Stent device for performing endovascular repair of Aneurysms

• US 20020042646A1
• Filed: 12/10/2001
• Published: 04/11/2002
• Est. Priority Date: 01/14/2000
• Status: Active Grant

• Current Assignee: W H Wall Family Holdings LLLP
• Original Assignee: William H. Wall
• Inventors: Wall, William H.
• Granted Patent: US 6,793,671 B2
• Time in Patent Office: Days
• US Class Current: 623/1.13
• 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 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/92 Stents in the form of a rolled-up sheet expanding after insertion into the vessel , e.g. with a spiral shape in cross-section
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2220/005 using adhesives

Abstract

A blood vessel wall-defining device for repairing an abdominal aneurysm. The device comprises a percutaneously-insertable structural frame extending between first and second ends having an unexpanded diameter which is smaller than the diameter of the blood vessel to permit the structural frame to be placed into the blood vessel. The structural frame being expansible to form a cylindrical structural skeleton having a slightly larger diameter than the blood vessel to facilitate the securing of the skeleton in position in the blood vessel. The skeleton has a sheath of a tubular fabric. The said structural frame has a plurality of spaced coiled stents prior to expansion which are uncoiled under the aegis of a balloon catheter and locked into position by ratchet means.

Claims

1. A blood vessel wall defining device for repairing an aneurysm comprising in combination,

a per cutaneously-insertable structural frame extending between a first end and a second end having an unexpanded diameter which is smaller than the diameter of said blood vessel for said structural frame to be per cutaneously placed into said blood vessel, said structural frame being expandable to form a generally cyclindrical structural skeleton having a lightly larger diameter than said blood vessel to facilitate the securing of said structural skeleton in position in said blood vessel;

said structural frame including a plurality of longitudinal support rods;

said support rods being attached to a tubular sheath for at least a portion thereof;

a plurality of expandable ring stents longitudinally displaced internally of said tubular sheath;

said ring stents having a smaller deployment diameter prior to use and an expanded diameter in the uncoiled position;

said ring stents having ratchet means for locking in an expanded position internally against the inner surface of said sheath.