Renal nerve modulation devices with weeping RF ablation balloons
First Claim
1. An intravascular catheter, comprising:
- an elongate member having a proximal end and a distal end;
a balloon having a longitudinal axis, an interior surface, an exterior surface, a lumen defined by the interior surface and a balloon wall extending between the interior surface and the exterior surface, the balloon having a plurality of discrete windows disposed in the balloon wall that are capable of passing an electric current between the interior surface and the exterior surface and wherein the balloon wall is otherwise electrically insulative, each of the plurality of discrete windows comprising a plurality of micropores and being spaced apart from one another by a region of the balloon wall that does not contain micropores, wherein at least two of the plurality of discrete windows only partially circumferentially overlap about the balloon with one another while being axially spaced from one another, and wherein the plurality of discrete windows are arranged in a spiral pattern that extends for a full rotation about the longitudinal axis; and
an electrode disposed within the balloon.
1 Assignment
0 Petitions
Accused Products
Abstract
The disclosure pertains to an intravascular catheter, comprising an elongate member having a proximal end and a distal end, a balloon having an interior surface, an exterior surface, a lumen defined by the interior surface and a cylindrical wall extending between the interior surface and the exterior surface, the cylindrical wall having a proximal end and a distal end, the balloon having a plurality of weeping windows disposed in the wall and able to pass an electric current between the interior surface and the exterior surface and wherein the balloon wall is otherwise electrically insulative, and an electrode disposed in the balloon. The intravascular system is suited for modulation of renal nerves, for example.
1490 Citations
20 Claims
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1. An intravascular catheter, comprising:
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an elongate member having a proximal end and a distal end; a balloon having a longitudinal axis, an interior surface, an exterior surface, a lumen defined by the interior surface and a balloon wall extending between the interior surface and the exterior surface, the balloon having a plurality of discrete windows disposed in the balloon wall that are capable of passing an electric current between the interior surface and the exterior surface and wherein the balloon wall is otherwise electrically insulative, each of the plurality of discrete windows comprising a plurality of micropores and being spaced apart from one another by a region of the balloon wall that does not contain micropores, wherein at least two of the plurality of discrete windows only partially circumferentially overlap about the balloon with one another while being axially spaced from one another, and wherein the plurality of discrete windows are arranged in a spiral pattern that extends for a full rotation about the longitudinal axis; and an electrode disposed within the balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An intravascular catheter, comprising:
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an elongate member having a proximal end and a distal end; a balloon having a longitudinal axis, an interior surface, an exterior surface, a lumen defined by the interior surface and a balloon wall extending between the interior surface and the exterior surface, the balloon having a plurality of discrete weeping windows disposed in the balloon wall and able to pass an electric current between the interior surface and the exterior surface and wherein the balloon wall is otherwise electrically insulative, the plurality of discrete weeping windows being spaced apart from one another by a non-weeping region of the balloon wall wherein the plurality of discrete weeping windows only partially circumferentially overlap about the balloon with each other and are spaced axially from each other, and wherein the plurality of discrete weeping windows are arranged in a spiral pattern that extends for a full rotation about the longitudinal axis, and wherein the plurality of discrete weeping windows are arranged such that every line extending along the balloon wall the shortest distance from the proximal end of the balloon wall to the distal end of the balloon wall passes through at least one discrete weeping window; and an electrode disposed in the balloon. - View Dependent Claims (19, 20)
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Specification