CANNULA ATTACHMENT IN ENDOLUMINAL DELIVERY DEVICES

• US 20140121751A1
• Filed: 10/31/2013
• Published: 05/01/2014
• Est. Priority Date: 10/31/2012
• Status: Abandoned Application

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Roeder, Blayne A.
• Application Number:
  US14/068,260
• Publication Number:
  US 20140121751A1
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable

Abstract

A stent graft delivery system in which a stent graft (6) is retained on a delivery device (2) such that a longitudinal portion of the stent graft is releasably retained on the delivery device to bend therewith. The delivery device (2) has a guide wire catheter (3) and the stent graft is retained onto the guide wire catheter by a cannula attachment wire (24) that can be withdrawn.

Claims

1. An endovascular delivery device, comprising:

a nose cone dilator,

a guide wire catheter having inner and outer surfaces, the inner surface defining a passageway with a longitudinal axis, and the outer surface having a plurality of openings radially located from the longitudinal axis;

a stent graft comprising a tubular body of a biocompatible material with a lumen therethrough, the tubular body having first and second ends, and a plurality of stents, the stent graft being mounted onto the delivery device for deployment therefrom and being positioned on the guide wire catheter which passes through the lumen of the stent graft;

a cannula attachment wire for releasably fastening a side of the stent graft to the guide wire catheter whereby the stent graft is temporarily affixed to the guide wire catheter along a length of the guide wire catheter defined by the length of the stent graft;

wherein the cannula attachment wire weaves in and out of the plurality of openings.

2. The endovascular device of claim 1, wherein the guide wire catheter comprises at least three pairs of openings.

3. The endovascular device of claim 1, wherein the cannula attachment wire and guide wire catheter conform a shape of the stent graft.

4. The endovascular delivery device of claim 1, wherein the cannula attachment wire weaves in and out of the stent graft.

5. The endovascular delivery device of claim 1, wherein the cannula attachment wire is substantially parallel to the longitudinal axis.

6. The endovascular delivery device of claim 1, wherein the plurality of openings are linearly arranged and substantially parallel to the longitudinal axis.

7. The endovascular delivery device of claim 1, wherein the delivery catheter comprises a longitudinal lumen therethrough, the guide wire catheter extending through the longitudinal lumen so that the guide wire catheter is movable longitudinally and rotationally with respect to the delivery catheter.

8. The endovascular delivery device of claim 1, comprising a delivery catheter further comprising a flexible sheath over the delivery catheter and extending to the nose cone dilator and thereby retaining the stent graft in a contracted conformation on the guide wire catheter.

9. The endovascular delivery device of claim 1, further comprising a release mechanism operably connected to the cannula attachment wire.

10. The endovascular delivery device of claim 1, wherein the guide wire catheter has a pre-formed curve located near the nose cone dilator.

11. The endovascular delivery device of claim 8, wherein the flexible sheath has a pre-formed curve located near the nose cone dilator.

12. An endovascular delivery device, comprising:

a delivery catheter;

a nose cone dilator,

a guide wire catheter comprising;

a passageway with a longitudinal axis,

a plurality of openings radially located from the longitudinal axis;

a stent graft comprising;

a tubular body of a biocompatible material with a lumen therethrough having first and second ends,

a plurality of stents,

wherein the stent graft is operably connected to the delivery device for deployment therefrom and being positioned on the guide wire catheter, wherein the guide wire catheter passes through the lumen of the stent graft;

a cannula attachment wire operably connected to guide wire catheter and stent graft, wherein the cannula attachment wire weaves in and out of the plurality of openings.

13. The endovascular device of claim 12, comprising at least three pairs of openings including one pair located substantially away from the first and second ends of the stent graft.

14. The endovascular device of claim 12, wherein the cannula attachment wire and guide wire catheter conform a shape of the stent graft.

15. The endovascular delivery device of claim 12, wherein the cannula attachment wire weaves in and out of the stent graft.

16. The endovascular delivery device of claim 12, wherein the cannula attachment wire is substantially parallel to the longitudinal axis.

17. The endovascular delivery device of claim 12, wherein the plurality of openings are linearly arranged and substantially parallel to the longitudinal axis.

18. The endovascular delivery device of claim 12, wherein the delivery catheter comprises a lumen through which the guide wire catheter extends so that the guide wire catheter is movable longitudinally and rotationally with respect to the delivery catheter.

19. The endovascular delivery device of claim 12, wherein the delivery catheter comprises a flexible sheath located over the delivery catheter and extending to the nose cone dilator and thereby retaining the stent graft in a contracted conformation on the guide wire catheter;

wherein the guide wire catheter has a pre-formed curve located near the nose cone dilator, and the flexible sheath has a pre-formed curve located near the nose cone dilator.

20. A method of deploying a stent graft to a patient in need thereof, comprising:

providing an endovascular delivery device, comprising;

a nose cone dilator,

a guide wire catheter having inner and outer surfaces, the inner surface defining a passageway with a longitudinal axis, and the outer surface having a plurality of openings radially located from the longitudinal axis;

a stent graft comprising a tubular body of a biocompatible material with a lumen therethrough, the tubular body having first and second ends, and a plurality of stents, the stent graft being mounted onto the delivery device for deployment therefrom and being positioned on the guide wire catheter which passes through the lumen of the stent graft;

a cannula attachment wire for releasably fastening a side of the stent graft to the guide wire catheter whereby the stent graft is temporarily affixed to the guide wire catheter along a length of the guide wire catheter defined by the length of the stent graft;

wherein the aligned openings substantially conform in shape to the cannula attachment wire;

removing the cannula attachment wire.