Catheter balloons with integrated non-distensible seals

• US 20100049123A1
• Filed: 11/02/2009
• Published: 02/25/2010
• 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: King, David R., Newcomb, Kenneth, Roeber, Peter J., Eskaros, Sherif, Mann, James William, McLaughlin, Lonzo C., Alpini, Alfred A., Korleski, Joseph E. JR., Campbell, Carey V.
• Granted Patent: US 8,636,690 B2
• Time in Patent Office: Days
• US Class Current: 604/103.60
• 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 with different compartments A61M2025/1072
• 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 one balloon material and at least one non-distending region comprising a plurality of elastomer-imbibed polytetrafluoroethylene layers 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.

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

2. A method of forming a continuous integrated seal on an inflatable balloon comprising:

a. providing a first balloon material layer configured to form a desired balloon shape;

b. wrapping a wrap layer around said first balloon material layer;

c. changing angle of the wrap to wrap at least one layer at an angle sufficient to create a seal over the first balloon material layer;

d. wrapping a second balloon material layer around the seal to increase the bonding surface area of the seal; and

e. forming an integrated non-distensible region upon inflation.

3. A method of forming a continuous exposed integrated seal on an inflatable balloon comprising:

a. providing a balloon material layer configured to form a desired balloon shape;

b. wrapping at least two layers of a wrap around said first balloon material layer;

c. changing angle to wrap one layer at an angle to the next layer sufficient to create a seal over a first balloon material layer; and

d. forming an integrated non-distensible region on an inflatable balloon.

4. A method of forming a discontinuous non-exposed integrated seal on an inflatable balloon comprising:

a. providing a first balloon material layer configured to form a desired balloon shape;

b. wrapping at least one layer of a second wrap around said first wrap at an angle sufficient to create a seal over a first balloon material layer;

c. wrapping a second balloon material layer around the seal to increase the bonding surface area of the seal; and

d. forming an integrated non-distensible region in an inflatable balloon.

5. A method of forming a discontinuous exposed integrated seal on an inflatable balloon comprising:

a. providing a first balloon material layer configured to form a desired balloon shape;

b. wrapping at least one layer of a second wrap around said first wrap at an angle sufficient to create a seal over a first balloon material layer; and

c. forming an integrated non-distensible region on an inflatable balloon.