METHOD OF USING A GUIDEWIRE WITH STIFFENED DISTAL SECTION

• US 20080269641A1
• Filed: 04/25/2007
• Published: 10/30/2008
• Est. Priority Date: 04/25/2007
• Status: Abandoned Application

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Coyle, Noel, O'Shaughnessy, Donagh
• Application Number:
  US11/739,834
• Publication Number:
  US 20080269641A1
• Time in Patent Office: Days
• US Class Current: 600/585
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61M 2025/0915 having features for changing the stiffness
• CPC Class Codes: A61M 2025/09175 having specific characteristics at the distal tip
• CPC Class Codes: A61M 25/09 Guide wires

Abstract

A method of treating a vascular condition includes inserting at least one locally stiffened guidewire into a vessel, advancing a distal section of the guidewire to a position adjacent a treatment site and providing a stiffening portion of the distal section to a location adjacent the treatment site. The method further includes disposing a delivery catheter over the inserted guidewire, advancing a distal portion of the delivery catheter to the treatment site, the distal portion carrying at least one stent and deploying the stent at the treatment site.

Claims

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

inserting into a vessel at least one locally stiffened guidewire having a locally stiffened portion;

advancing the locally stiffened portion of the at least one locally stiffened guidewire to a location adjacent a treatment site;

disposing a delivery catheter over the inserted at least one locally stiffened guidewire;

advancing the delivery catheter until a distal catheter portion carrying at least one stent is disposed about the locally stiffened portion of the at least one locally stiffened guidewire; and

deploying the stent at the treatment site.

2. The method of claim 1 wherein a first locally stiffened guidewire is inserted and advanced until a first locally stiffened portion is disposed adjacent a first branch of a bifurcated vessel treatment site and a second locally stiffened guidewire is inserted and advanced until a second locally stiffened portion is disposed adjacent a second branch of a bifurcated vessel treatment site.

3. The method of claim 2 wherein advancing the delivery catheter comprises advancing a delivery catheter having a bifurcated stent.

4. The method of claim 3 wherein the bifurcated stent comprises a body portion, a first leg portion and a second leg portion.

5. The method of claim 3 wherein advancing the delivery catheter further comprises advancing the first leg portion of the bifurcated stent over the first locally stiffened portion and advancing the second leg portion of the bifurcated stent over the second locally stiffened portion.

6. The method of claim 5 wherein deploying the stent at the treatment site comprises deploying a first leg portion of the bifurcated stent into contact with a first bifurcated portion of the vessel wall and deploying a second leg portion of the bifurcated stent into contact with a second bifurcated portion of the vessel wall.

7. The method of claim 6 wherein deploying the bifurcated stent comprises inflating a balloon portion of the delivery catheter.

8. The method of claim 1 wherein the locally stiffened portion comprises radiopaque indicia.

9. The method of claim 1 further comprising retracting the delivery catheter in response to the deploying of the stent.

10. The method of claim 9 further comprising retracting the at least one guidewire in response to retracting the delivery catheter.