Traction balloon

• US 8,945,047 B2
• Filed: 07/20/2009
• Issued: 02/03/2015
• Est. Priority Date: 04/21/2004
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: McAuley, Steven A., Cheves, Karen M., Crow, Loren M., Kelley, Gregory S., Radisch, Herbert R. Jr., Roman, Ricardo David, Wu, Show-Mean
• Primary Examiner(s): BOUCHELLE, LAURA A
• Application Number:
  US12/505,974
• Publication Number:
  US 20090281490A1
• Time in Patent Office: 2,024 Days
• Field of Search: 604/96.01, 604/102.01, 604/102.02, 604/103.07, 604/103.08, 604/104, 604/915, 606/194
• US Class Current: 604/103.08
• CPC Class Codes: A61M 2025/1086 having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

Balloon catheters and methods of making and using the same. A balloon catheter may include a catheter shaft and a balloon coupled thereto. A traction member may be coupled to the balloon catheter adjacent the balloon and may extend along a portion or all of the length of the balloon. The traction member can improve traction between the balloon and a target site.

Claims

1. A balloon catheter, comprising:

an elongate shaft;

a balloon coupled to the shaft, the balloon having an outer surface, a proximal end, and a distal end; and

a wire extending substantially parallel to a longitudinal axis of the catheter along the outer surface of the balloon, the wire having a gripping region defined by a helical winding of the wire for facilitating gripping or reducing slippage disposed along the outer surface of the balloon, the wire having a proximal end attached directly to the shaft adjacent the proximal end of the balloon and a distal end attached directly to the shaft adjacent the distal end of the balloon.

2. The balloon catheter of claim 1, wherein the shaft has a guidewire lumen defined therein.

3. The balloon catheter of claim 2, further comprising a guidewire disposed in the guidewire lumen.

4. The balloon catheter of claim 1, wherein the gripping region is defined by a surface texture of the wire.

5. The balloon catheter of claim 1, wherein the wire is a single wire.

6. The balloon catheter of claim 1, wherein the wire includes a nickel-titanium alloy.

7. A balloon catheter, comprising:

an elongate shaft having a length, wherein a guidewire lumen is defined along at least a portion of the length of the shaft;

a balloon coupled to the shaft, the balloon having an outer surface, a proximal end, and a distal end, and an inflatable portion between the proximal end and the distal end; and

a wire having a surface that facilitates gripping or reduces slippage attached to the balloon catheter and extending along the outer surface of the balloon, the wire having a proximal end attached to the balloon catheter adjacent the proximal end of the balloon and a distal end attached to the balloon catheter adjacent to the distal end of the balloon and the wire extending substantially parallel to a longitudinal axis of the catheter along the outer surface of the balloon;

wherein the distal end of the wire is attached to the catheter shaft at a location distal of the inflatable portion of the balloon; and

wherein the surface is defined by a helical winding of the wire such that a series of windings form a series of peaks.

8. The balloon catheter of claim 7, wherein the proximal end of the wire is attached to the catheter shaft at a location proximal to the proximal end of the balloon.

9. The balloon catheter of claim 7, wherein the proximal end of the wire is attached to the proximal end of the balloon.

10. The balloon catheter of claim 7, wherein the wire includes a nickel-titanium alloy.

11. The balloon catheter of claim 7, wherein the guidewire lumen extends along on a portion of the length of the shaft.

12. A balloon catheter, comprising:

an elongate shaft having a length, wherein a guidewire lumen is defined along a portion of the length of the shaft;

a balloon coupled to the shaft, the balloon having an outer surface, a proximal end, and a distal end; and

a nickel-titanium alloy wire external to the balloon and extending substantially parallel to a longitudinal axis of the catheter along the outer surface of the balloon and attached to the shaft, the wire includes a gripping region defined by a helical winding of the wire such that a series of windings form a series of peaks for facilitating gripping or reducing slippage and the wire having a proximal end attached to the shaft adjacent the proximal end of the balloon and a distal end attached to the shaft adjacent to the distal end of the balloon.