Methods and apparatuses for remodeling tissue of or adjacent to a body passage
First Claim
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1. A catheter, comprising:
- an elongate flexible catheter body; and
an expandable structure associated with the catheter body and including a radially expandable balloon and a plurality of flexible circuits extending along an outer surface of the balloon, each flexible circuit including at least one electrode and at least one temperature sensor;
wherein at least a portion of the outer surface of the balloon includes a flexible polyimide film;
wherein the flexible polyimide film defines a base insulative layer of the plurality of flexible circuits; and
wherein the expandable structure has an outer diameter of less than 4 mm when in an expanded configuration.
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Abstract
Medical devices and methods for making and using the same are disclosed. An example medical device may include a catheter. The catheter may include an elongate flexible catheter body. An expandable structure may be associated with the catheter body and may include a radially expandable balloon and a plurality of flexible circuits extending along an outer surface of the balloon. Each flexible circuit may include at least one electrode and at least one temperature sensor. The expandable structure may have an outer diameter of less than 4 mm when in an expanded configuration.
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Citations
18 Claims
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1. A catheter, comprising:
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an elongate flexible catheter body; and an expandable structure associated with the catheter body and including a radially expandable balloon and a plurality of flexible circuits extending along an outer surface of the balloon, each flexible circuit including at least one electrode and at least one temperature sensor; wherein at least a portion of the outer surface of the balloon includes a flexible polyimide film; wherein the flexible polyimide film defines a base insulative layer of the plurality of flexible circuits; and wherein the expandable structure has an outer diameter of less than 4 mm when in an expanded configuration. - View Dependent Claims (2, 3, 4, 5)
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6. A system for renal denervation of a patient having a primary renal artery extending between an aorta and a kidney and an accessory renal artery extending between the aorta and the kidney, the system comprising:
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a first balloon catheter and a second balloon catheter, each having a balloon with a small profile configuration and a large profile configuration, with a plurality of flexible circuits extending along an outer surface of each balloon, each flexible circuit including at least one electrode, wherein at least one of the balloons has a large profile configuration that is less than 4 mm in outer diameter; and a power source electrically coupled to the electrodes of the first and second balloon catheters and configured to energize the electrodes with a renal denervation energy. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A renal denervation method, comprising:
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positioning a radially expandable structure of an elongate flexible catheter body at a location in an accessory renal artery connecting an aorta to a kidney, the aorta and the kidney further connected by a primary renal artery, the radially expandable structure comprising a plurality of electrodes; expanding the radially expandable structure such that at least a subset of the electrodes engage a wall of the accessory renal artery; using a power source electrically coupled to the electrodes, energizing at least a subset of the plurality of electrodes to deliver energy to tissue proximate the accessory renal artery. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification