Balloon catheter device

• US 20060271091A1
• Filed: 08/07/2006
• Published: 11/30/2006
• Est. Priority Date: 09/18/1995
• Status: Abandoned Application

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Inventors: Laguna, Alvaro J., Campbell, Carey V., Spencer, Mark S.
• Application Number:
  US11/501,090
• Publication Number:
  US 20060271091A1
• Time in Patent Office: Days
• US Class Current: 606/192
• CPC Class Codes: A61M 2025/1075 having a balloon composed of several layers, e.g. by coating or embedding
• CPC Class Codes: A61M 2025/1081 having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• 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 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• 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
• CPC Class Codes: A61M 25/1034 Joining of shaft and balloon
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

Balloon catheters are provided having the balloon length is substantially surrounded by an elastic cover. The balloon and the cover maintain a substantially and circular cross-section along the balloon length during inflation. The cross section is able to maintain a uniform size down the length of the balloon during inflation.

Claims

1. A catheter balloon comprising an inelastic balloon having a balloon length along the longitudinal axis of the inelastic balloon and an elastic balloon cover surrounding said balloon length forming a catheter balloon capable of having a compacted deflated state, and an expanded inflated state wherein the cover exhibits a substantially circular cross-section of a uniform diameter along the balloon length during catheter balloon inflation.

2. The catheter balloon of claim 1 wherein the balloon comprises a polytetrafluoroethylene material.

3. The catheter balloon of claim 1 wherein the balloon cover comprises a polytetrafluoroethylene material.

4. The catheter balloon of claim 1 wherein the balloon exhibits a predictable inflated diameter along the balloon length.

5. A catheter balloon comprising an inelastic balloon having a balloon length along the longitudinal axis of the inelastic balloon and an elastic balloon cover surrounding said balloon length forming a catheter balloon capable of having a compacted deflated state, and an expanded inflated state wherein the cover exhibits a substantially circular cross-section of a uniform diameter along the balloon length during catheter balloon inflation and deflation in the absence of external constraint.

6. The catheter balloon of claim 5 wherein a substantially uniform diameter of the circular cross-section is exhibited along the balloon length.

7. A catheter balloon comprising an inelastic balloon having a balloon length along the longitudinal axis of the inelastic balloon and an elastic balloon cover surrounding said balloon length forming a catheter balloon capable of having a compacted deflated state, an expanded inflated state and an intermediate state between the compacted and inflated states;

wherein the cover exhibits a substantially circular cross-section along the balloon length in the deflated, inflated and intermediate states in the absence of external constraint.

8. The catheter balloon of claim 7 wherein a substantially uniform diameter of the circular cross-section is exhibited along the balloon length.

9. A catheter balloon having a balloon length along a longitudinal axis, said balloon comprising a first polytetrafluoroethylene material oriented substantially parallel to the longitudinal axis and a second polytetrafluoroethylene material oriented substantially circumferential to the longitudinal axis wherein the balloon length is substantially surrounded by an elastic cover, the elastic cover maintains a substantially circular cross-section along the balloon length during inflation.

10. The catheter balloon of claim 9 wherein a substantially uniform diameter of the circular cross-section is exhibited along the balloon length.