Renal denervation balloon catheter with ride along electrode support
First Claim
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1. A medical device for nerve ablation, comprising:
- a catheter shaft;
an expandable member coupled to the catheter shaft, the expandable member having a proximal region, a distal region, and a body extending therebetween, the expandable member being a balloon; and
an electrode support coupled to the catheter shaft and positioned over the body of the expandable member, the electrode support including a plurality of spaced apart flexible elongate members, each having a distal end, a proximal end, and a body extending therebetween, and a plurality of electrode assemblies disposed on the electrode support, the electrode support capable of expanding with the expandable member, wherein the electrode support is free from attachment with the body of the expandable member and wherein the plurality of spaced apart flexible elongate members are connected to each other at their proximal and distal ends,wherein the plurality of spaced apart flexible elongate members extend in a helix over the body of the expandable member.
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Abstract
A renal nerve ablation device may include an elongate tubular member having a distal region. An expandable member may be coupled to the distal region. An electrode support may be coupled to the distal region of the elongate tubular member and extend over a body of the expandable member. The electrode support may be free of connection to the body of the expandable member. One or more electrodes may be coupled to the electrode support.
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Citations
18 Claims
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1. A medical device for nerve ablation, comprising:
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a catheter shaft; an expandable member coupled to the catheter shaft, the expandable member having a proximal region, a distal region, and a body extending therebetween, the expandable member being a balloon; and an electrode support coupled to the catheter shaft and positioned over the body of the expandable member, the electrode support including a plurality of spaced apart flexible elongate members, each having a distal end, a proximal end, and a body extending therebetween, and a plurality of electrode assemblies disposed on the electrode support, the electrode support capable of expanding with the expandable member, wherein the electrode support is free from attachment with the body of the expandable member and wherein the plurality of spaced apart flexible elongate members are connected to each other at their proximal and distal ends, wherein the plurality of spaced apart flexible elongate members extend in a helix over the body of the expandable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18)
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12. A medical device, comprising:
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a catheter shaft; an expandable balloon having a distal waist, proximal waist, and a body extending therebetween, the proximal waist being coupled to the catheter shaft; a flexible elongate electrode assembly coupled to the catheter shaft and extending in a helix over the body of the expandable balloon, the electrode assembly being free from attachment to the body of the expandable balloon, the elongate electrode assembly comprising a plurality of spaced apart elongate members each having a distal region, a proximal region, and a body extending therebetween; a plurality of electrodes disposed on at least a first one of the plurality of spaced apart elongate members; and one or more elongate supports having a distal region, a proximal region, and a body extending therebetween, the one or more elongate supports extending in a helix over the body of the expandable balloon and spaced apart from the plurality of spaced apart elongate members. - View Dependent Claims (13, 14, 15)
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16. A medical device, comprising:
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a catheter shaft; an expandable balloon having a distal waist, proximal waist, and a body extending therebetween, the proximal waist being coupled to the catheter shaft; a flexible elongate electrode assembly coupled to the catheter shaft and extending in a helix over the body of the expandable balloon, the electrode assembly free from attachment to the body of the expandable balloon, wherein the elongate electrode assembly includes three spaced apart elongate members each having a distal region, a proximal region, and a body extending therebetween, and wherein the three spaced apart elongate members are free from attachment to each other along their respective bodies; a plurality of electrode elements disposed on the flexible elongate electrode assembly; and one or more elongate supports each having a distal region, a proximal region, and a body extending therebetween, the one or more elongate supports extending in a helix over the body of the expandable balloon and spaced apart from the three spaced apart elongate members, the one or more elongate supports connected to the three spaced apart elongate members only at their distal and proximal regions. - View Dependent Claims (17)
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Specification