Renal nerve modulation balloon and methods of making and using the same

Patent metadata

Field	Value
Publication number	US-9675414-B2
Application number	US-201314012573-A
Country	US
Kind code	B2
Filing date	Aug 28, 2013
Priority date	Sep 13, 2012
Publication date	Jun 13, 2017
Grant date	Jun 13, 2017

Abstract

An expandable medical balloon for transmitting radiofrequency energy, the medical balloon comprising at least one polymeric electrically-insulating layer and at least one polymeric electrically-conductive layer, wherein at least portions of the polymeric electrically-insulating layer are moveable relative to the polymeric electrically-conductive in said at least one pressurizable expanded state.

First claim

The invention claimed is:

1. An expandable medical balloon for transmitting radiofrequency energy, the medical balloon comprising at least one pressurizable expanded state and comprising: at least one polymeric electrically-insulating layer; and at least one polymeric electrically-conductive layer comprising an electrically-conductive polymer material selectively adhered to the at least one polymeric electrically-insulating layer; wherein at least portions of an underlying surface of the polymeric electrically-insulating layer are not adhered to and moveable relative to the polymeric electrically-conductive layer in said at least one pressurizable expanded state.

2. The expandable medical balloon of claim 1 wherein the at least one polymeric electrically-conductive layer comprises a hydrophilic electrically-conductive polymer.

3. The expandable medical balloon of claim 2 wherein said hydrophilic electrically-conductive polymer comprises at least one member selected from the group consisting of poly(ether-block-amide)s, polyurethanes and mixtures thereof.

4. The expandable medical balloon of claim 1 wherein said polymeric electrically-insulating layer is entirely disposed over said polymeric electrically-conductive layer.

5. The expandable medical balloon of claim 4 wherein said polymeric electrically-conductive layer comprises windows that are electrically conductive.

6. The expandable medical balloon of claim 5 wherein each of said windows is defined by a circumference and said at least portions of the underlying surface of the polymeric electrically-insulating layer are moveable relative to the polymeric electrically-conductive layer at least around the circumference of each of said windows.

7. The expandable medical balloon of claim 5 wherein said balloon comprises 6 windows.

8. The expandable medical balloon of claim 5 wherein the total area of the windows combined is about 0.1 cm 2 to about 0.7 cm 2 .

9. The expandable medical balloon of claim 1 further comprising a fugitive intermediate layer.

10. The expandable medical balloon of claim 9 wherein said fugitive intermediate layer comprises a hydrophilic polymer.

11. The expandable medical balloon of claim 9 wherein said fugitive intermediate layer comprises a water soluble or water dissolvable polymer.

12. The expandable medical balloon of claim 9 wherein said fugitive intermediate layer comprises a hydrogel.

13. The expandable medical balloon of claim 1 further comprising an intermediate layer, the intermediate layer comprising a lubricant.

Assignees

• Boston Scient Scimed Inc

Inventors

• Horn Daniel J
• Squire Robert N
• Royer Adam Joseph
• Lindquist Jeffrey S
• Chen John J

Classifications

• A61B2018/0022

  Balloons · CPC title

• A61B2018/00821

  measured by a thermocouple · CPC title

• A61B2018/00577

  Ablation · CPC title

• A61B18/1492 Primary

  having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence) · CPC title

• F04C2270/041

  Controlled or regulated · CPC title