Guide catheter with attached stent delivery system

• US 20060079951A1
• Filed: 10/08/2004
• Published: 04/13/2006
• Est. Priority Date: 10/08/2004
• Status: Abandoned Application

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Dolan, Mark J., Yamasaki, Dwayne S.
• Application Number:
  US10/962,316
• Publication Number:
  US 20060079951A1
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/9583 Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve

Abstract

The invention provides a system and method for treating a vascular condition. The system comprises a guide catheter that includes a central lumen. A stent delivery device that includes a delivery catheter and a stent disposed on the delivery catheter is slidably received in the central lumen. A stop interface retains a portion of the delivery catheter within the central lumen while still allowing positioning of the stent beyond a distal end of the guide catheter. In use, the guide catheter with the retained stent delivery device is introduced into a vessel. The stent carried on the stent delivery device is expanded after being positioned at a location beyond a distal end of the guide catheter.

Claims

1. A system for treating a vascular condition, comprising:

a guide catheter including a central lumen;

a delivery catheter slidably received in the central lumen;

a treatment device disposed on the delivery catheter; and

a stop interface positioned adjacent to a proximal end of the guide catheter, wherein the stop interface retains a portion of the delivery catheter within the central lumen of the guide catheter and allows positioning of the treatment device beyond a distal end of the guide catheter.

2. The system of claim 1 wherein the treatment device is a stent.

3. The system of claim 2 wherein the delivery catheter includes a balloon used to expand the stent.

4. The system of claim 2 wherein the delivery catheter includes a sheath that retracts to allow expansion of the stent.

5. The system of claim 2 wherein the stent includes a therapeutic coating disposed on the stent.

6. The system of claim 5 wherein the therapeutic coating includes an agent selected from a group consisting of an antineoplastic agent, an antiproliferative agent, an antibiotic, an antithrombogenic agent, an anticoagulant, an antiplatelet agent, and an anti-inflammatory agent.

7. The system of claim 1 wherein a distal portion of the guide catheter comprises a shaped, flexible tip predisposed to bend at a predetermined angle.

8. The system of claim 1 wherein the length of the guide catheter is less than 50 centimeters.

9. The system of claim 1 wherein the stop interface is sized and shaped to slidably receive the delivery catheter.

10. The system of claim 1 wherein the stop interface is sized and shaped to slidably receive a guidewire.

11. A system for treating a vascular condition, comprising:

a guide catheter including a central lumen;

a delivery catheter slidably received in the central lumen;

a treatment device disposed on the delivery catheter; and

means for retaining a portion of the delivery catheter within the central lumen of the guide catheter while allowing positioning of the treatment device beyond a distal end of the guide catheter.

12. The system of claim 11 wherein the guide catheter includes means for directing a tip of the guide catheter into a side branch of a vessel.

13. The system of claim 11 wherein the delivery catheter includes means for expanding a stent.

14. The system of claim 11 wherein the treatment device includes means for delivering a therapeutic agent to the site of the vascular condition.

15. A method for treating a vascular condition, comprising:

retaining a stent delivery device within a guide catheter using a stop interface;

introducing the guide catheter with retained stent delivery device into a vessel;

positioning a stent carried on the stent delivery device at a location beyond a distal end of the guide catheter; and

expanding the stent.

16. The method of claim 15 further comprising:

introducing a guidewire into the vessel.

17. The method of claim 15 wherein a distal portion of the guide catheter comprises a shaped, flexible tip predisposed to bend at a predetermined angle, and wherein introducing the guide catheter with retained stent delivery device into a vessel comprises directing the catheter tip into a side branch of a vessel.

18. The method of claim 15 wherein positioning the stent at a location beyond a distal end of the guide catheter comprises grasping a proximal portion of the stent delivery device that extends from a proximal end of the guide catheter and sliding the stent delivery device within the guide catheter until the stent exits a distal end of the guide catheter.

19. The method of claim 15 wherein expanding the stent comprises inflating a balloon positioned within the stent.

20. The method of claim 15 wherein expanding the stent comprises retracting a sheath positioned over the stent.