Intraluminal stent, delivery system, and a method of treating a vascular condition

• US 20070067020A1
• Filed: 09/22/2005
• Published: 03/22/2007
• Est. Priority Date: 09/22/2005
• Status: Abandoned Application

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular (Medtronic Plc)
• Inventors: Rea, Susan
• Application Number:
  US11/233,591
• Publication Number:
  US 20070067020A1
• Time in Patent Office: Days
• US Class Current: 623/1.220
• 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 2/958 Inflatable balloons for placing stents or stent-grafts

Abstract

An intraluminal stent, an intraluminal stent delivery system, and a method treating a vascular condition. The stent includes a framework including an elongated spiral seam. The framework includes a side edge including an angle formed with respect to an end edge. The system includes a catheter and a stent. The stent includes a framework including an elongated spiral seam. The framework includes a side edge including an angle formed with respect to an end edge. The method includes positioning a stent including at least one spiral seam at a target region of a vessel. The stent is expanded from a compressed configuration to a deployed configuration. At least one therapeutic agent is delivered from the stent along the at least one spiral seam.

Claims

1. An intraluminal stent comprising a framework including an elongated spiral seam, the framework comprising a side edge including an angle formed with respect to a frame corner.

2. The stent of claim 1 wherein the stent comprises at least one stent unit, each unit including a portion of the spiral seam.

3. The stent of claim 1 wherein the angle is about ten to twenty degrees.

4. The stent of claim 1 wherein the stent comprises a biodegradable polymer film.

5. The stent of claim 1 further comprising a plurality of lock assemblies operably attached to the stent.

6. The stent of claim 5 wherein the plurality of lock assemblies comprise ratchet assemblies for allowing sliding of the stent unit in a direction of deployment and minimizing recoil in a direction of compression.

7. The stent of claim 5 wherein the plurality of lock assemblies comprise a staggered configuration.

8. The stent of claim 1 further comprising at least one therapeutic agent disposed on the stent.

9. An intraluminal stent delivery system comprising:

a catheter; and

an intraluminal stent comprising a framework including an elongated spiral seam, the framework comprising a side edge including an angle formed with respect to a frame corner.

10. The system of claim 9 wherein the stent comprises at least one stent unit, each unit including a portion of the spiral seam.

11. The system of claim 10 wherein the angle is about ten to twenty degrees.

12. The system of claim 9 wherein the stent comprises a biodegradable polymer film.

13. The system of claim 9 further comprising a plurality of lock assemblies operably attached to the stent.

14. The system of claim 13 wherein the plurality of lock assemblies comprise ratchet assemblies for allowing sliding of the stent unit in a direction of deployment and minimizing recoil in a direction of compression.

15. The system of claim 13 wherein the plurality of lock assemblies comprise a staggered configuration.

16. The system of claim 9 further comprising at least one therapeutic agent disposed on the stent.

17. A method of treating a vascular condition, the method comprising:

positioning a stent including at least one spiral seam at a target region of a vessel;

expanding the stent from a compressed configuration to a deployed configuration; and

delivering at least one therapeutic agent from the stent along the at least one spiral seam.

18. The method of claim 17 wherein the stent material comprises a biodegradable polymer film.

19. The method of claim 17 wherein expanding the stent from a compressed configuration to a deployed configuration comprises allowing sliding of the stent in a direction of deployment and minimizing recoil in a direction of compression.

20. The method of claim 17 wherein the spiral seam is angled at about 10 to 20 degrees.