Methods and apparatuses for remodeling tissue of or adjacent to a body passage
First Claim
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1. A device, comprising:
- a catheter extending along a longitudinal axis;
a balloon coupled to an end of the catheter, the balloon having a plurality of cylindrical treatment zones extending along the longitudinal axis in an expanded state; and
a plurality of electrode assemblies coupled to the balloon, each electrode assembly comprising a distal electrode pad, a proximal electrode pad and an intermediate tail that extends between the distal electrode pad and the proximal electrode pad such that;
the distal electrode pad is longitudinally separated from the proximal electrode pad by the intermediate tail, each electrode assembly comprising a bipolar electrode pair, the distal electrode pad and proximal electrode pad being circumferentially offset from one another in the expanded state of the balloon,wherein the plurality of electrode pads are each longitudinally arranged such that each cylindrical treatment zone includes at least one of the distal and proximal electrode pads of at least one of the plurality of electrode assemblies,wherein the intermediate tail of each electrode assembly extends in the longitudinal direction such that the distal electrode pad and proximal electrode pad of any particular electrode assembly occupy non-adjacent treatment zones on the balloon.
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Abstract
Medical devices and methods for making and using the same are disclosed. An example device may include a catheter extending along a longitudinal axis. A balloon may be coupled to an end of the catheter. The balloon having a plurality of cylindrical treatment zones extending along the longitudinal axis in an expanded state. A plurality of electrode assemblies may be coupled to the balloon. Each electrode assembly may include a distal electrode pad and a proximal electrode pad.
1506 Citations
17 Claims
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1. A device, comprising:
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a catheter extending along a longitudinal axis; a balloon coupled to an end of the catheter, the balloon having a plurality of cylindrical treatment zones extending along the longitudinal axis in an expanded state; and a plurality of electrode assemblies coupled to the balloon, each electrode assembly comprising a distal electrode pad, a proximal electrode pad and an intermediate tail that extends between the distal electrode pad and the proximal electrode pad such that;
the distal electrode pad is longitudinally separated from the proximal electrode pad by the intermediate tail, each electrode assembly comprising a bipolar electrode pair, the distal electrode pad and proximal electrode pad being circumferentially offset from one another in the expanded state of the balloon,wherein the plurality of electrode pads are each longitudinally arranged such that each cylindrical treatment zone includes at least one of the distal and proximal electrode pads of at least one of the plurality of electrode assemblies, wherein the intermediate tail of each electrode assembly extends in the longitudinal direction such that the distal electrode pad and proximal electrode pad of any particular electrode assembly occupy non-adjacent treatment zones on the balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for treating a patient having high blood pressure, the method comprising:
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inserting a device into the renal artery, the device comprising; a catheter extending along a longitudinal axis; a balloon having an unexpanded state and an expanded state, and coupled to an end of the catheter, the balloon having a plurality of cylindrical treatment zones extending along the longitudinal axis in the expanded state; and a plurality of electrode pad assemblies mounted to the balloon, each electrode pad assembly comprising a substrate supporting a first distal electrode pad and second proximal electrode pad and an intermediate tail that extends between the distal electrode pad and the proximal electrode pad such that the distal electrode pad is longitudinally separated from the proximal electrode pad by the intermediate tail, with each electrode pad having a pair of elongate bipolar electrodes, the distal electrode pad and the proximal electrode pad being circumferentially offset from one another in the expanded state of the balloon, wherein the plurality of electrode pad assemblies are each longitudinally arranged such that each cylindrical treatment zone includes at least one of the distal and proximal electrode pads of at least one of the plurality of electrode assemblies, wherein the intermediate tail of each electrode pad assembly extends in the longitudinal direction such that the distal electrode pad and proximal electrode pad of any particular electrode assembly occupy non-adjacent treatment zones on the balloon; expanding the balloon in the renal artery so as to electrically couple the electrodes with a wall of the renal artery; and driving bipolar energy between the electrodes of each bipolar pair so as to therapeutically alter nerves surrounding the renal artery such that the high blood pressure of the patient is mitigated. - View Dependent Claims (16, 17)
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Specification