Attachment of stent to graft fabric with an anchoring machine stitching

Patent metadata

Field	Value
Publication number	US-9700400-B2
Application number	US-201313772009-A
Country	US
Kind code	B2
Filing date	Feb 20, 2013
Priority date	Feb 20, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

The invention relates to stent-grafts having a continuous anchoring machine stitching and methods of attachment of a stent to the graft material. The continuous anchoring machine stitching includes a series of loop points used to attach the stent to the graft material.

First claim

What is claimed is:

1. A stent-graft comprising:
a first stent, the first stent comprising a first stent wire configured in a stent wire pattern;
graft material, the graft material having a substantially tubular first graft shape with an inner surface and an outer surface and a lumen extending therethrough;
a plurality of discrete sutures that follow the stent wire pattern; and
a continuous machine stitch, stitched into the graft material and following the stent wire pattern and comprising a plurality of loop points, each loop point comprising a portion of the continuous machine stitch that projects from a surface of the graft material in a loop, wherein the plurality of loop points are disposed on the outer surface of the substantially tubular first graft shape and follow the stent wire pattern; and
wherein the plurality of discrete sutures attach the first stent wire to the continuous machine stitch at the plurality of loop points on the outer surface of the substantially tubular first graft shape.

2. The stent-graft of claim 1 wherein each suture of the plurality of discrete sutures attaches the first stent wire to the continuous machine stitch at an independent loop point of the plurality of loop points.

3. The stent-graft of claim 1 wherein the first stent wire is attached to the continuous machine stitch at substantially all of the plurality of loop points.

4. The stent-graft of claim 2 wherein the first stent wire is attached to the continuous machine stitch at substantially all of the plurality of loop points.

5. The stent-graft of claim 1 wherein the stent wire pattern comprises a generally zig-zag shape.

6. The stent-graft of claim 1 wherein the plurality of discrete sutures ties the first stent wire to the continuous machine stitch with a knot at the plurality of loop points.

7. The stent graft of claim 1 wherein each suture of the plurality of discrete sutures ties the first stent wire to the continuous machine stitch with a knot at an independent loop point of the plurality of loop points.

8. The stent graft of claim 7 wherein the first stent wire is tied to the continuous machine stitch with a knot at substantially all of the plurality of loop points.

9. The stent-graft of claim 7 wherein each of the plurality of discrete sutures passes through the loop points and around the first stent wire.

10. The stent-graft of claim 8 wherein each of the plurality of discrete sutures passes through the loop points and around the first stent wire.

11. The stent-graft of claim 1 wherein at least one suture of the plurality of discrete sutures attaches the first stent wire to the continuous machine stitch at more than one loop point of the plurality of loop points.

12. The stent-graft of claim 11 wherein at least one suture of the plurality of discrete sutures ties the first stent wire to the continuous machine stitch at more than one loop point of the plurality of loop points.

13. The stent-graft of claim 11 wherein at least one suture of the plurality of discrete sutures attaches the first stent wire to the continuous machine stitch at a first loop point and a second loop point.

Assignees

• Havel William John
• Cook Medical Technologies Llc

Inventors

• Havel William John

Classifications

• A61F2220/0075

  sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable · CPC title

• D05B21/00

  Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. program-controlled for sewing collars or for attaching pockets · CPC title

• A61F2/07 Primary

  Stent-grafts · CPC title

• A61F2002/075

  the stent being loosely attached to the graft material, e.g. by stitching · CPC title

• A61F2/82

  Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) · CPC title