Endoluminal prosthesis and tissue separation condition treatment method

• US 6,921,414 B2
• Filed: 12/03/2002
• Issued: 07/26/2005
• Est. Priority Date: 06/30/2000
• Status: Expired due to Fees

• Current Assignee: LeMaitre Vascular, Incorporated
• Original Assignee: Vascular Architects Incorporated
• Inventors: Klumb, Katherine J., Hill, Bradley B., Kamdar, Kirti P., Fogarty, Thomas J.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): Blanco, Javier G.
• Application Number:
  US10/308,574
• Publication Number:
  US 20030225444A1
• Time in Patent Office: 966 Days
• Field of Search: 623/1.1, 623/1.13, 623/1.15, 623/1.2, 623/1.22, 623/1.37, 606/108, 606/191, 606/194, 606/195, 606/198
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• 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 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

An endoluminal prosthesis includes a coiled body and a graft material covering at least part of the coiled body to create a coiled stent graft. The average stent graft diameter to turns width ratio may be about 0.8 to 1 to about 2.4 to 1 when expanded.

Claims

1. A vascular dissection-treating endoluminal prosthesis comprising:

a coiled, generally helically extending body;

a graft material covering the entire coiled body to create a coiled stent graft movable between radially expanded and radially contracted conditions;

the coiled body comprising laterally spaced-apart, longitudinally extending rail elements and transversely extending connector elements connecting the rail elements;

said coiled stent graft having generally helically extending turns with first and second generally helically extending edges and a width measured perpendicular to said edges, said stent graft placeable in the radially contracted condition for placement and in the radially expanded condition for use; and

said stent graft, when in the radially expanded condition, constructed to have at most 2 turns and to press outwardly against a wall within an aortic arch of a patient so to force any separated intimal lining back against a remainder of the wall.

2. The endoluminal prosthesis according to claim 1 wherein the coiled stent graft has an average stent graft diameter to turns-width ratio from about 0.8 to 1 to about 2.4 to 1 when in the radially expanded condition.

3. The endoluminal prosthesis according to claim 1 wherein said stent graft comprises a radiopaque marker.

4. The endoluminal prosthesis according to claim 1 wherein the first edge of one turn lies adjacent to the second edge of an adjacent turn when in the radially expanded condition.