BIFURCATED STENT DELIVERY SYSTEM

• US 20050192656A1
• Filed: 07/22/2003
• Published: 09/01/2005
• Est. Priority Date: 01/27/1999
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Eidenschink, Tracee E.J.
• Granted Patent: US 7,476,243 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/90 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 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61M 2025/1045 for treating bifurcations, e.g. balloons in y-configuration, separate balloons or special features of the catheter for treating bifurcations
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

The present invention is drawn to a system for deploying a stent at a bifurcation. In one embodiment, the system includes a stepped balloon which has a first section of a first diameter, and a second section of a second diameter. The first portion is sized to deploy a first stent portion, having a larger deployed diameter, while the second portion is sized to deploy a second stent portion, having a smaller deployed diameter.

Claims

1-32. -32. (canceled)

33. A dual balloon catheter comprising:

an elongate catheter body having a distal end region, the elongate catheter body defining only a single inflation lumen, a first guide wire lumen and a second guide wire lumen;

a first balloon having a proximal portion bonded to the distal end region of the elongate catheter body, the first balloon disposed about at least a portion of the first guide wire lumen, the first balloon having a distal portion engaged to a distal region of the first guide wire lumen; and

a second balloon having a proximal portion bonded to the distal end region of the elongate catheter body, the second balloon disposed about at least a portion of the second guide wire lumen, the second balloon having a distal portion engaged to a distal region of the second guide wire lumen, the first balloon and the second balloon in fluid communication with the inflation lumen.