Catheter balloons with integrated non-distensible seals

• US 8,636,690 B2
• Filed: 11/02/2009
• Issued: 01/28/2014
• Est. Priority Date: 08/07/2006
• Status: Active Grant

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Inventors: Alpini, Alfred A., Campbell, Carey V., Eskaros, Sherif, King, David R., Korleski, Joseph E. Jr., Mann, James William, McLaughlin, Lonzo C., Newcomb, Kenneth, Roeber, Peter J.
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US12/610,535
• Publication Number:
  US 20100049123A1
• Time in Patent Office: 1,548 Days
• Field of Search: 604/96.01, 60410101-10105, 604/103, 604/103.05, 604/103.06, 604/103.07, 604/103.11, 604/103.12, 604/509, 604/912, 604915-917
• US Class Current: 604/103
• CPC Class Codes: A61M 2025/1004 Balloons with folds, e.g. folded or multifolded
• CPC Class Codes: A61M 2025/1031 Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface
• CPC Class Codes: A61M 2025/1059 having different inflatable sections mainly depending on the response to the inflation pressure, e.g. due to different material properties
• CPC Class Codes: A61M 2025/1075 having a balloon composed of several layers, e.g. by coating or embedding
• CPC Class Codes: A61M 2025/1084 having features for increasing the shape stability, the reproducibility or for limiting expansion, e.g. containments, wrapped around fibres, yarns or strands
• CPC Class Codes: A61M 25/0009 Making of catheters or other medical or surgical tubes
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1011 Multiple balloon catheters
• CPC Class Codes: A61M 25/1029 Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril

Abstract

A catheter balloon with integral non-distending regions having a plurality of layers which wind around the balloon material and overlap to form an angle of between 45 and 90 degrees relative to each other upon inflation, and methods of making the non-distending regions are provided.

Claims

1. A balloon catheter comprising a catheter shaft and a catheter balloon comprising at least two layers of at least one balloon material and at least one non-distending region comprising a plurality of elastomer-imbibed polytetrafluoroethylene layers in between the at least two layers of balloon material which wind around the balloon material and overlap to form an angle of between 0 and 90 degrees relative to each other upon inflation and retain pressure in the balloon, wherein said elastomer-imbibed polytetrafluoroethylene comprises a film of said elastomer on both sides and throughout said polytetrafluoroethylene.

2. The balloon of claim 1 wherein the catheter shaft comprises ridges in contact with the integral non-distending region of the balloon.

3. The balloon catheter of claim 1, wherein there are at least three non-distending regions in said balloon catheter.

4. The balloon catheter of claim 3, wherein said balloon is a shaped balloon.

5. The balloon catheter of claim 1, wherein said balloon material and material comprising the non-distending region are fused together to create a continuous composite.

6. The balloon catheter of claim 1, wherein said elastomer is a polyurethane.